TW201929719A - Hair-holding instrument - Google Patents

Abstract

This hair-holding instrument (1A) is provided with a tubular body (2) configured such that strands of hair can be inserted therein from an opening (21) at one end to an opening (22) at the other end. The tubular body (2) has a longitudinal direction, and a width direction (Y) orthogonal to the longitudinal direction (X). The tubular body (2) has: a pair of seam parts (24) in which two or more sheets (23A, 23B) are integrated by sewing; and a tubular part (26) into which the strands of hair are inserted, the tubular part (26) being positioned between the pair of seam parts. The pair of seam parts (24) extend along the longitudinal direction (X) of the tubular body (2), and are provided with an arrangement area (24S) in which stitches (24a) are arranged, the stitches (24a) having a width in the width direction (Y) of the tubular body (2). The hair-holding instrument (1A) configured in this manner has exceptional durability in relation to repeated use, and also has high hoisting force.

Description

Hair holder

The present invention relates to a hair holder.

The present applicant has previously proposed a hair holder comprising: a cylindrical body through which a hair bundle is inserted; and a winding fixing mechanism capable of fixing the cylindrical body to a winding state of a plurality of winding diameters ( Patent Document 1). Patent Document 1 describes that the tubular system of the hair holder is formed by sewing, fusing, or subsequently forming two sheets.

Further, Patent Document 2 discloses a hair holder having a pocket portion through which an outlet of a hair bundle is inserted from an insertion opening toward the other end. Patent Document 2 describes that a two-piece sheet made of plastic is joined by heat sealing to form a bag portion.
Prior art document patent document

Patent Document 1: Japanese Patent Laid-Open No. 2004-209237, Patent Document 2: US Patent No. 3255765

The present invention relates to a hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and is orthogonal to the longitudinal direction Width direction. The cylindrical body has a pair of sewn portions, and two or more sheets are integrally formed by suturing, and a tubular portion is disposed between the pair of sewn portions and inserted into the hair bundle. Each of the pair of sewn portions extends in the longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in the width direction of the tubular body. The two or more sheets include a sheet constituting the tubular portion, and one or all of the sheets constituting the tubular portion are formed of a shape memory sheet. The sheet located on the outer side when the cylindrical body is wound up has a longer length of the stitch in the sewn portion than the sheet on the inner side.

Moreover, the present invention is a hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and a longitudinal direction The width direction of the intersection. The cylindrical body has a pair of sewn portions, and two or more sheets are integrally formed by suturing, and a tubular portion is disposed between the pair of sewn portions and inserted into the hair bundle. Each of the pair of sewn portions extends in the longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in the width direction of the tubular body. The two or more sheets include a sheet constituting the tubular portion and a reinforcing member disposed on each of the pair of sewn portions. The sheet constituting the cylindrical portion is a non-woven fabric, and the reinforcing material is a resin film. One or all of the sheets constituting the above-described tubular portion are composed of a shape memory sheet.

The hair holders described in Patent Documents 1 and 2 can be used for hot perm or cold perm, and the above-described blanching is performed by applying a perm solution while the hair is rolled up, and heating is performed. Cold ironing only applies perm solution. When the hair holder described in Patent Document 2 is repeatedly used for perm such as blanching, the joint portion of the two sheets is broken. Therefore, the durability against repeated use of perm is insufficient. The hair holder described in Patent Document 1 also has room for improvement in durability against repeated use of perm. Further, from the viewpoint of making the hair firmly curled, the hair holder for perming is required to have a large curling force.

Accordingly, an object of the present invention is to provide a hair holder having excellent durability and high curling force for repeated use.

Hereinafter, the hair holder of the present invention will be described with reference to the drawings based on preferred embodiments thereof. In Fig. 1, an embodiment of the hair holder of the present invention is shown. As shown in Fig. 1 (a) and (b), the hair holder 1A of the first embodiment includes a tubular body 2 which is capable of opening the hair bundle H from the opening 21 of one end toward the other end. The portion 22 is inserted and formed of sheets 23A and 23B. The hair holder 1A of the present embodiment has a longitudinal direction X and a width direction Y orthogonal to the longitudinal direction X. The tubular body 2 has a flat shape that is long in one direction, and has a longitudinal direction and a width direction orthogonal to the longitudinal direction. The longitudinal direction of the tubular body 2 coincides with the longitudinal direction X of the hair holder 1A, and the width direction of the tubular body coincides with the width direction of the hair holder 1A.

The hair holder 1A of the present embodiment includes a tubular body 2 including one of the inner side sheets 23A when rolled up and the other side sheet 23B which is located outside when rolled up. As shown in FIGS. 1(a) and 1(b), the tubular body 2 has a flat shape and has a pair of sewn portions 24 which are formed by stitching and integrating two sheets 23A and 23B; The tubular portion 26 is located between the pair of sewn portions 24 and is inserted into the hair bundle H. In the present embodiment, the tubular portion 26 is a portion through which the hair bundle H inserted from the one end opening portion 21 is inserted toward the opening portion 22 at the other end. The tubular body 2 is formed by stitching a sheet forming one side (hereinafter also referred to as "one sheet") 23A and a sheet forming the other side (hereinafter also referred to as "the other sheet") 23B by stitching. Formed.
The tubular body 2 of the present embodiment includes two sheets of one sheet 23A and the other sheet 23B, but the tubular body 2 may include two or more sheets. The sheet constituting the tubular portion 26 is included in the two or more sheets. The sheet constituting the tubular portion 26 is integrated in the sewn portion 24 and the other sheets constituting the tubular body 2 by stitching, and a cylindrical shape is formed between the sewn portions 24 and 24 in the width direction Y. Part 26. In the present embodiment, two sheets of the outer surface of the tubular portion 26, that is, the outermost layer of the tubular portion 26, of the two or more sheets are made into one sheet 23A and the other sheet 23B. To explain.
The hair holding device 1A has an extending portion 4 that extends from the end portion on the side of the opening portion 21 of one end of the tubular body 2. The hair holder 1A may have no extension portion 4, but it is preferable to have the extension portion 4 from the viewpoint of facilitating the insertion work of the hair bundle H.

Hereinafter, when the one sheet 23A and the other sheet 23B are collectively described, or when two or more sheets constituting the tubular portion 26 are collectively described, the substrate sheet 23 is expressed as "substrate sheet 23".
Examples of the material for forming the base material sheet 23 include non-woven fabric (polyethylene nonwoven fabric, polyethylene terephthalate non-woven fabric, etc.), woven fabric, mesh sheet, porous or non-porous resin film (poly A vinyl film, a polyethylene terephthalate film or the like, a paper, a polymer material sheet, a rubber sheet, or a composite of two or more thereof.
The thickness of the substrate sheet 23 is preferably 5 μm or more, more preferably 10 μm or more, further preferably 2,000 μm or less, more preferably 1,500 μm or less, and further preferably 5 μm or more and 2000 μm or less. More preferably, it is 10 μm or more and 1500 μm or less.

The tubular body 2 of the present embodiment is configured to be able to be rolled up. The configuration that can be rolled up means that the tubular body 2 can be wound into a roll shape as shown in FIG. 2 . The cylindrical body 2 has a configuration in which it is automatically rolled up. In the configuration of the automatic winding, for example, in a natural state, the tubular body 2 is wound into a roll shape, and after the tubular body 2 is stretched and the hair bundle H is inserted, the hand is released. Then, the tubular body 2 is rolled up together with the hair bundle H. Such a configuration can be provided by forming one or more of the two or more sheets constituting the tubular body 2 from the shape memory sheet. Specifically, part or all of the sheet constituting the tubular portion 26 is composed of a shape memory sheet. The shape memory sheet can be formed by laminating sheets or films having different heat shrinkage ratios or sheets or films having different tensions. Further, the tubular body 2 may be returned to the original drum shape that has been memorized by heating the base material sheet 23 constituting the tubular body 2. The above-mentioned "natural state" means a state in which the hair holder is placed on a horizontal surface without applying an external force to the hair holder in an environment of a temperature of 20 ° C and a humidity of 40%.

It is preferable that the base material sheet 23 is processed to improve the diffusibility of a hair treatment agent such as a permanent wave liquid. The processing is not particularly limited, and examples thereof include embossing, calendering, and resin film forming. For example, the embossing process can form the hair treatment agent along the convex portion by forming the convex portions connected along the longitudinal direction of the base material sheet 23, thereby improving the diffusibility. The calendering process can improve the diffusibility of the hair treatment agent by adjusting the density of the substrate sheet 23. In the resin film forming process, the liquid absorption amount of the entire substrate sheet can be reduced by forming a resin film having a low liquid absorbability in part or all of the base material sheet 23, thereby improving the diffusibility of the hair treatment agent.

The tubular body 2 has a pair of sewn portions 24 and 24 which are formed by stitching two or more sheets constituting the tubular body 2 by stitching. The sewn portion 24 is a portion obtained by sewing two or more sheets constituting the tubular body 2 with a sewing thread. In the tubular body 2 of the present embodiment, the one sheet 23A and the other sheet 23B are joined to each other at the pair of sewn portions 24. On the other hand, the one sheet 23A and the other sheet 23B are not joined to each other except for the pair of sewn portions 24. Each of the pair of sewn portions 24 extends in the longitudinal direction X of the tubular body 2, and the sewn portion 24 includes an array region F1 in which the stitches 24a are arranged in the width direction of the tubular body 2 in the width direction. The array area F1 stitches 24a are arranged in the longitudinal direction X so as to have a width in the width direction Y. Here, the stitch 24a is a line segment formed by sewing a needle, that is, a line segment formed by a stitching line connecting two needle holes, and the stitching line repeatedly passes through two or more sheets constituting the tubular body 2. The loop formed is exposed to the respective surfaces of the two sheets 23A and 23B constituting the outer surface of the tubular portion 26. The outer surface of the tubular portion 26 is the surface on the outer side of the cylindrical body 2, that is, the surface on the side opposite to the side on which the hair bundle H is inserted.

The array region F1 of the present embodiment includes a plurality of linear stitching portions 24S in which the stitches 24a are linearly arranged, and the plurality of linear stitching portions 24S are arranged in the width direction Y. In the array region F1, the stitches 24a constituting the two linear sewing portions 24S arranged in the width direction Y are arranged in the width direction Y as shown in Fig. 1(a), whereby the stitches 24a are arranged in a width manner. . The array region F1 is preferably located in the entire region from the one end side to the other end side in the longitudinal direction X. In the first embodiment, the sewn portions 24 are formed on both side edge portions 25 of the two sheets 23A and 23B, and are parallel to each other. The pair of sewn portions 24 are preferably parallel to each other along the longitudinal direction X from one end side to the other end side, but may be formed not to be parallel. Further, in the pair of sewn portions 24, a linear sewn portion 24S is formed in parallel with each other in two rows in the width direction Y. The linear sewn portion 24S has linearly arranged stitches 24a along the longitudinal direction X of the tubular body 2.

The suture portion 24 of the present embodiment will be described in detail. When the tubular body 2 is wound up, the sheet located on the outer side is longer than the sheet located on the inner side in the stitching portion 24. That is, the stitch 24a in the sewn portion 24 of the other sheet 23B is longer than the stitch 34 in the sewn portion 24 of the one sheet 23A. This configuration is also referred to as configuration (1). From the viewpoint of improving the following curling force, the length L24a of the stitching portion 24 in the sewn portion 24 of the other sheet 23B (refer to Figs. 1(a) and 8(a)) is opposite to the stitching portion of the one sheet 23A. The length L34 of the stitches in 24 (refer to Figs. 1(b) and 8(b)) is preferably 101% or more, more preferably 105% or more, further preferably 135% or less, more preferably 125% or less. Further, it is preferably 101% or more and 135% or less, more preferably 105% or more and 125% or less.
From the same viewpoint as described above, the length L24a of the stitching portion 24 in the sewn portion 24 of the other sheet 23B (refer to Figs. 1(a) and 8(a)) is preferably 1.5 mm or more, more preferably 2.0 mm. Further, the above is preferably 5.5 mm or less, more preferably 3.5 mm or less, and further preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
In the same manner as described above, the length L34 of the stitches in the stitching portion 24 of one sheet 23A (refer to Figs. 1(b) and 8(b)) is shorter than the stitching portion 24 of the other sheet 23B. The length L24a of the stitch is preferably 1.5 mm or more, more preferably 2.0 mm or more, further preferably 5.5 mm or less, more preferably 3.5 mm or less, and further preferably 1.5 mm or more and 5.5 mm or less. More preferably, it is 2.0 mm or more and 3.5 mm or less.
The length of the stitches was measured by the following method. First, for each of the one sheet 23A and the other sheet 23B, any 20 stitches in the stitching portion are selected. The length of each of the selected stitches was measured using a size measuring function of a digital microscope (manufactured by KEYENCE, VHX-6000), and the average value of the stitches was set to the length of the stitches. The above-described size measurement function measures the length between both ends of each stitch by image processing.

The hair holder 1A of the present embodiment includes a cylindrical body 2 in which a part of the sheet material is formed of a shape memory sheet, and one of the pair of the cylindrical bodies 2 has the arrangement region F1. By having such a configuration, the hair holding device 1A is joined to each other with excellent joint strength while maintaining the flexibility of the sheet constituting the tubular body 2. Therefore, even when the hair bundle H is wound up, the stress which causes the two or more sheets constituting the tubular body 2 to be joined to each other is concentrated on the opening portion 21 side of one end of the tubular body 2, and Excellent durability in terms of this stress. In this way, even if the hair holder 1A is repeatedly used for perm treatment such as blanching, it is not easy to cause damage to the portion on the side of the opening 21 of one end of the tubular body 2, and therefore, it has excellent durability. On the other hand, the hair holder that joins only the side edges of the two or more sheets constituting the tubular body 2 by heat sealing is concentrated on one end of the cylindrical body 2 when the hair bundle H is wound up. Since the durability of the stress on the side of the opening portion 21 is low, the portion on the side of the opening portion 21 at one end is easily broken, and it is difficult to withstand the repeated use of the permanent wave treatment.

Further, in the tubular body 2, two or more sheets constituting the tubular body 2 are firmly joined by the pair of sewn portions 24, and the both side edges of the two or more sheets are not closely adhered to each other. Some have a gap. The phrase "having a part of the gap" means a portion other than the sewn portion 24 of the two side edges of the two or more sheets, and the two or more sheets are not joined. In other words, the two or more sheets have excellent joint strength, but by having a part of the above-mentioned sheets, it is possible to reduce the resistance against rolling up of any one or all of the sheets of the two or more sheets. Thereby, the flexibility of the sheet can be maintained without impairing the curling force of the shape memory sheet, and the curling force can be effectively exhibited. Therefore, the hair joined by the two or more sheets only by heat sealing can be retained. It has better hair curling power. The curling force winds the hair holding device 1A into a roll shape to impart a curling force to the hair bundle. If the curling force is weak, it is difficult to impart a curled shape to the hair bundle. Further, by making the length of the stitch of the sewn portion 24 of the other sheet 23B longer than the one sheet 23A, it is not easy to cause strain on the tubular body 2, and a beautiful roll can be formed. Thereby, it is possible to impart a beautiful curl shape to the hair bundle held in the tubular body 2.

The above-described hair holding device 1A having excellent joint strength is integrated with only two or more sheets constituting the tubular body 2 by the heat sealing bonding, and thus is formed on both side edges of the hair holding device 1A. 25, the sheets are not easily peeled off from each other, and by integration of the sheets, the sheets are maintained in flexibility and are not easily bent relative to the longitudinal direction X. Further, as described above, the tubular body 2 is less likely to be strained, so that the tubular body 2 can be smoothly wound up. In other words, the workability of the winding operation of the hair holder 1A is excellent.

The sewn portion 24 is preferably formed on both side edges of two or more sheets, but may be formed in a portion other than the both side edges of the sheet or the two sheets.
Further, the hair holder 1A has a linear sewing portion 24S in which a plurality of stitches are linearly arranged on both side edge portions 25 thereof. In the hair holder 1A, each of the pair of sewn portions 24 includes the above-described region F1, that is, a plurality of linear sewn portions 24S in which the stitches 24a are linearly arranged. According to this configuration, even if the sewn portion 24 is frayed, the two or more sheets constituting the tubular body 2 are not easily peeled off from each other. In the first embodiment, the two sewn portions 24 are formed in the arranging region F1, and the straight sewn portions 24S may be formed in two or more.
Further, as described above, each of the pair of sewn portions 24 is preferably arranged in the array region F1, and the straight sewn portions 24S along the longitudinal direction X of the tubular body 2 are formed in parallel with each other in the width direction Y. The portion 24 may have two or more portions that are not arranged.

Any one or both of the two or more sheets constituting the tubular body 2 of the hair holding device 1A may be a sheet containing a nonwoven fabric. For example, when the one-sheet 23A or the other-side sheet 23B of the tubular body 2 includes a nonwoven fabric, the basis weight of the fibers constituting the nonwoven fabric may affect the bonding strength between the sheets 23A and 23B, but includes plural The joint strength of the stitched portion 24 of the straight stitch is not easily affected by the above-mentioned basis weight. Therefore, the hair holder 1A can firmly bond one of the sheets 23A and the other sheet 23B to the sewn portion 24.

Since the sewn portion 24 is not sewn in the width direction Y, the resistance when the hair holder 1A is wound up in the longitudinal direction X can be suppressed to be low. Thereby, the tubular body 2 can be easily rolled up. Further, it is possible to suppress the deflection which may occur in the both side edges 25 of the tubular body 2 when the hair bundle H is inserted into the hair holder 1A by using the insertion tool, so that the insertion tool can be inserted and removed without resistance, and can be inserted. Excellent workability.
Moreover, the joint strength of the side edge portions 25 of the two or more sheets constituting the tubular body 2 with respect to the insertion and exit of the insert can be maintained, and the curling force can be effectively exhibited.

The straight sewn portion 24S in the sewn portion 24 of the present embodiment is formed by being disposed on the surface of the other sheet 23B in the longitudinal direction X at the same interval by a plurality of stitches 24a having the same length. The stitch 24a of the straight stitching portion 24S in the stitching portion 24 exposed on the surface of the other sheet 23B is parallel to the longitudinal direction X (see Fig. 1(a)). The hair holder 1A of the present embodiment has the following extended portion 4, and a sewn portion is formed on an extension line of the sewn portion 24 in the extended portion 4. In other words, the sewn portion may be extended from the outer side of the longitudinal direction X from the tubular body 2 in which two or more sheets are stacked.
The linear sewing portion 24S in the sewn portion 24 can be in the form of any one of a single-strand slit, a hand stitch, a lock stitch, and a double chain slit described in JIS L 0120. As such a stitch form, for example, a half back slit can be cited as a double chain slit. Further, the linear sewing portion 24S in the sewn portion 24 can be formed by a known method such as a sewing machine. In particular, the double-needle sewing machine can be preferably used for the stitching of the sewn portion 24 from the viewpoint of easily forming the two straight sewn portions 24S. In the case where the sewn portion 24 is formed by the lock stitch using the sewing machine, for example, the stitch 24a of the sewn portion 24 in the other sheet 23B is formed by the needle thread, and the stitch of the stitch portion 24 in the sheet 23A is formed. The 34 series is formed by the bottom line. The lock type stitching method is a sewing method in which the parallel upper thread and the bottom thread enter into the intermittently formed pinholes and cross each other. In the present embodiment, the stitches in the one sheet 23A and the stitches in the other sheet 23B are the same in the direction of projection from the one side of the cylindrical body, and are substantially overlapped (see FIG. 1(a) and (b)].

The size of the sewn portion 24 in the hair holding device 1A is preferably in the following range from the viewpoint of more effectively exerting the above-described curling force and the effect of durability for repeated use.
The length L24 of the sewn portion 24 in the longitudinal direction X (see Fig. 1(a)) is preferably 80% or more, more preferably 100% or more, and more preferably 100% or more with respect to the length L2 of the longitudinal direction X of the tubular body 2. It is 120% or less, more preferably 110% or less, further preferably 80% or more and 120% or less, more preferably 100% or more and 110% or less. The length L24 of the sewn portion 24 includes the length of the extended sewn portion 24c described below, and is the maximum length of the sewn portion including the extended sewn portion 24c in the longitudinal direction X.
Each of the lengths L24a and L34 of the stitches 24a and 34 exposed on the surface of one of the sheet 23A and the other sheet 23B (see FIGS. 8(a) and (b)) is opposite to the stitching portion 24 in the longitudinal direction X. The length L24 (see Fig. 1(a)) is preferably 0.01% or more, more preferably 0.1% or more, further preferably 5% or less, more preferably 2% or less, further preferably 0.01% or more and 5 % or less, more preferably 0.1% or more and 2% or less.
The distance between the stitches P24a and P34 in the stitching portions 24 of the one sheet 23A and the other sheet 23B (see FIGS. 8(a) and (b)) is relative to the lengths L24a and L34 of the stitches 24a and 34 (refer to FIG. 8). (a) and (b)) are preferably 50% or more, more preferably 100% or more, further preferably 300% or less, more preferably 200% or less, and further preferably 50% or more and 300% or less. More preferably, it is 100% or more and 300% or less. The distance between the stitches P24a and P34 in the straight stitching portion 24S is from the end of one stitch 24a, 34 to the end of the next stitch 24a, 34. The plurality of stitches 24a, 34 of the stitching portion 24 may be formed at intervals or may be formed without being spaced apart.
The sewn portion 24 of the present embodiment is formed by a plurality of linear sewn portions 24S separated by a space D24 in the width direction Y. The interval D24 between the linear sewing portions 24S in the width direction Y, that is, the length of the array region F1 in the width direction Y is preferably 1% or more, more preferably 3, with respect to the length W2 of the tubular body 2 in the width direction Y. More preferably, it is 20% or less, more preferably 10% or less, further preferably 1% or more and 20% or less, more preferably 3% or more and 10% or less.

Further, by the hand slit described in JIS L 0120, a linear sewing portion composed of stitches 24a having different lengths or different pitches is formed on the surface of one sheet 23A and the surface of the other sheet 23B. In the case of 24S, the size of each of the stitches 24a, 34 exposed on the surface of one of the sheets 23A and the other sheet 23B is preferably within the above range. However, the condition is that the stitch 24a in the sewn portion 24 of the other sheet 23B is longer than the stitch 34 in the sewn portion 24 of one sheet 23A.

The hair holder 1A of the present embodiment has an inverted portion 24b at the end portion on the side of the opening portion 21 at one end of the sewn portion 24 in the longitudinal direction X. In the case where it is not specifically described, the "back-slit portion" in the present specification is a portion in which a plurality of stitches are sewn in a direction in which the sewing direction of the sewn portion 24 or the like is substantially reversed. According to this configuration, the joint strength between the one sheet 23A and the other sheet 23B can be maintained for a long period of time, and the durability against the above-described repeated use can be improved. Further, the sewing starting point at which the fray is most likely to occur in the sewn portion 24 and the joint strength at the end point of the sewing can be improved. As described above, the sewn portion 24 preferably has the reverse slit portion 24b at least on one end side thereof, and more preferably has an inverted slit portion 24b at the end portion on the opening portion 21 side of one end of the sewn portion 24 in the longitudinal direction X. The hair holder 1A may have an inverted portion 24b at the end portion on the side of the opening portion 22 at the other end, and may have a reversed portion 24b at both end portions of the opening portion 21 side of the one end and the opening portion 22 side of the other end.
In the present embodiment, the reverse slit portion 24b is generally formed so as to overlap one end portion of the sewn portion 24 in the longitudinal direction X, but may not overlap the one end portion.

The back stitching portion 24b may be a stitch of one stitch or a stitch of a plurality of stitches in terms of stitches. Further, from the viewpoint of further improving the joint strength of the two or more sheets constituting the cylindrical body 2, the length L24b of the reverse slit portion 24b is the same length L24a of the stitch 24a of the stitching portion 24. In other words, it is preferably 1 or more, more preferably 3 or more. The length of the stitch of one of the reverse stitching portions 24b and the distance between the stitches are preferably the same range as the stitches in the stitching portion 24.
The back-slit portion 24b is formed in the sewing direction, and it is preferable that a part of the back-slit portion 24b overlaps with the sewn portion 24, and more preferably, the entire back-slit portion 24b overlaps the sewn portion 24.

The face sheet 23A of the hair holder 1A of the present embodiment extends from the outer side of the tubular body 2 in the longitudinal direction X. Hereinafter, this portion is also referred to as an extension portion 4. In this manner, one or more of the two or more sheets constituting the tubular body 2 of the hair holding device 1A have a portion extending from the longitudinal direction of the tubular body 2, that is, having a sheet in which two or more sheets are overlapped. Part of the part. The hair holder 1A of the present embodiment has the extending portion 4 in the vicinity of the end portion of the opening portion 21 at one end of the tubular body 2, but may have the extending portion 4 in the vicinity of the end portion of the opening portion 22 at the other end. It is also possible to have the extended portion 4 at the openings 21 and 22 at both ends.
The reverse slit portion 24b of the present embodiment is extended on the extension line of the sewn portion 24 in the extended portion 4. In this manner, the sewn portion formed on the extension line of the sewn portion 24 in the extended portion 4 is also referred to as an extended sewn portion 24c. The extended sewn portion 24c may be overlapped with at least a part of the extended portion of the sewn portion 24, more specifically, when the suture portion 24 is assumed to extend outward in the longitudinal direction X. The extended sewn portion 24c may be a sewn portion or a reversed portion formed by extending the suture portion 24 in the longitudinal direction X. The reverse slit portion formed to extend the sewn portion 24c is distinguished from the reverse slit portion of the sewn portion 24 in that the two or more sheets constituting the tubular body 2 are not joined to each other. From the viewpoint of improving the joint strength between two or more sheets constituting the tubular body 2, the extended sewn portion 24c is preferably an inverted slit portion. The extended sewn portion 24c may be one of the extended sewn portions 24c as a reversed portion, or the entire extended sewn portion 24c may be an inverted portion. For example, it is also possible to extend only the end portion of the sewn portion 24c on the outer side in the longitudinal direction X as the reverse slit portion. As shown in Fig. 2, in the extended sewn portion 24c of the present embodiment, one of the reverse slit portions 24b of the end portion on the side of the opening portion 21 formed at one end of the sewn portion 24 in the longitudinal direction X is crossed in the longitudinal direction X. The edge 27 of the portion where the one sheet 23A and the other sheet 23B overlap each other is formed to extend to the extended portion 4, and the entire extended portion 24c is an inverted portion. When the extended sewn portion 24c is the reverse slit portion, the joint strength between the edges of the two or more sheets constituting the tubular body 2 in the longitudinal direction X can be further increased. For example, in the present embodiment, the joint strength of the edge where the one sheet 23A and the other sheet 23B overlap each other can be further improved. In particular, in the state in which the hair holding device 1A is wound up, the edge 27 of the portion in which the two or more sheets of the tubular body 2 are overlapped on the opening portion 21 side of one end is provided (refer to Fig. 1 (a) and 2] It is easy to concentrate the stress at which the sheets are joined to each other. Therefore, the extended sewn portion 24c is preferably an inverted slit portion formed so as to overlap the above-described edge 27 in the longitudinal direction X. That is, it is preferable that the extended sewn portion 24c is formed by a reversed portion that straddles the edge 27 from the outer edge of the edge 27 extending toward the outer side in the longitudinal direction X.
The extension sewn portion 24c may be formed on the extension portion 4 on the other end side of the opening portion 22.
The extended sewn portion 24c is preferably in the same range as the length L24b of the reverse slit portion 24b, the length of the stitch of one of the reverse slit portions 24b, and the distance between the stitches.

The size and the like of the tubular body 2 can be appropriately determined depending on the length of the hair, the portion to be molded, and the amount of the hair bundle to be inserted, but it is preferably in the following range.
The length W2 of the tubular body 2 in the width direction Y (see Fig. 1(b)) is preferably 25 mm or more, more preferably 30 mm or more, further preferably 200 mm or less, more preferably 150 mm or less. Further, it is preferably 25 mm or more and 200 mm or less, more preferably 30 mm or more and 150 mm or less.

The length L1 of the hair holder 1 in the longitudinal direction X (see Fig. 1(a)) is preferably 50 mm or more, more preferably 100 mm or more, further preferably 400 mm or less, and more preferably 350 mm or less. Further, it is preferably 50 mm or more and 400 mm or less, more preferably 100 mm or more and 350 mm or less. The length L1 of the hair holder 1 in the longitudinal direction X is the total length of the extended portion 4 and the tubular body 2 in the longitudinal direction X.
The length L2 of the cylindrical body 2 in the longitudinal direction X is preferably 45 mm or more, more preferably 90 mm or more, further preferably 300 mm or less, more preferably 275 mm or less, and further preferably 45 mm or more. And 300 mm or less, more preferably 90 mm or more and 275 mm or less. The end portion of the tubular body 2 of the present embodiment on the side of the opening portion 21 at one end is curved in a concave shape toward the inner side in the longitudinal direction X. As described above, when the length of the tubular body 2 in the longitudinal direction X is different depending on the position in the width direction Y, the maximum length of the tubular body 2 in the longitudinal direction X is preferably within the above range.

The length W22 of the opening portion 22 at the other end in the width direction Y (see FIG. 1(b)) is preferably 40.0% or more, and more preferably 66.7% or more with respect to the length W2 of the tubular body 2 in the width direction Y. Further, it is preferably 97.5% or less, more preferably 96.7% or less, further preferably 40.0% or more and 97.5% or less, more preferably 66.7% or more and 96.7% or less.
The length W22 (refer to Fig. 1(b)) of the opening portion 22 at the other end in the width direction Y is preferably 10 mm or more, more preferably 20 mm or more, further preferably 195 mm or less, more preferably 145 mm. Hereinafter, it is preferably 10 mm or more and 195 mm or less, more preferably 20 mm or more and 145 mm or less.
In the present embodiment, the length W22 of the opening portion 22 at the other end in the width direction Y is the same as the length of the opening portion 21 at one end in the width direction Y. The length of the opening portion 22 at the other end in the width direction Y may be the same as or different from the length of the opening portion 21 at one end.

The outer diameter D2 (see FIG. 2) of the tubular body 2 in the wound state is not particularly limited, and may be appropriately set depending on the amount of the hair bundle or the length of the hair bundle, etc., but the workability at the time of winding up is considered. Preferably, it is 10 mm or more, more preferably 15 mm or more, further preferably 60 mm or less, more preferably 50 mm or less, and further preferably 10 mm or more and 60 mm or less, more preferably 15 mm. Above and below 50 mm. The outer diameter D2 of the cylindrical body 2 is the maximum length of the cross section in the radial direction orthogonal to the central axis direction of the cylindrical body 2 wound into a roll shape. The outer diameter D2 of the tubular body 2 does not include the length of the following extended portion.

The length L34 of the stitch in the sewn portion 24 of the sheet 23A is less likely to cause strain on the tubular body 2 in the wound state, and the curl shape imparted to the hair bundle is more beautiful [refer to FIG. 8 (b). The outer diameter D2 (see FIG. 2) of the cylindrical body 2 is preferably 3% or more, more preferably 4% or more, further preferably 15% or less, more preferably 13% or less, and further, Preferably, it is 3% or more and 15% or less, more preferably 4% or more and 13% or less.

From the same viewpoint as described above, the distance P24a between the stitches 24 (see FIG. 1(a)) is preferably 3% or more with respect to the outer diameter D2 (see FIG. 2) of the tubular body 2, and more preferably 4% or more, further preferably 15% or less, more preferably 13% or less, further preferably 3% or more and 15% or less, more preferably 4% or more and 13% or less.

The hair holder 1 may have a slit or may not have a slit in any one or more of the two or more sheets constituting the tubular body 2. As shown in Fig. 1(a), the hair holder 1 of the present embodiment is a slit 6 having a lateral length extending in the width direction Y of the other sheet 23B. According to this configuration, the elongation of the base sheet 23 constituting the hair holder 1 can be improved, and the tubular body 2 can be smoothly wound up. In this manner, it is preferable that the sheet constituting one surface or the other surface of the tubular body 2 has a shape which is long in the width direction Y of the cylindrical body 2 so as to be spaced apart in the longitudinal direction of the cylindrical body 2. Preferably, the plurality of slits are formed in the plurality of slits, and the plurality of slits are formed on both of the sheets constituting one surface and the other surface of the tubular body 2. Further, it is preferable that the plurality of slits are formed in series along the longitudinal direction X of the tubular body 2. From the viewpoint of smoothly winding up the tubular body 2, it is preferable that a plurality of slits are formed in the longitudinal direction X so as to be spaced apart from each other in the outer surface sheet 23B which is externally wound up. In addition to the slit shown in Fig. 1(a), for example, a slit described in Japanese Laid-Open Patent Publication No. 2006-129972 can be provided.

Here, the slit extending in the width direction Y of the other sheet 23B means that the length of the cylindrical body 2 of the slit is less than 3 mm in the longitudinal direction X. Further, the length W6 of the slit 6 in the width direction Y (see FIG. 1(a)) is preferably 40.0% or more, more preferably 50.0% or more, with respect to the length W2 of the tubular body 2 in the width direction Y. It is preferably 90.0% or less, more preferably 80.0% or less, further preferably 40.0% or more and 90.0% or less, more preferably 50.0% or more and 80.0% or less.
Further, the length W6 of the slit 6 in the width direction Y (see Fig. 1(a)) is preferably 10 mm or more, more preferably 15 mm or more, further preferably 180 mm or less, more preferably 120 mm or less. Further, it is preferably 10 mm or more and 180 mm or less, more preferably 15 mm or more and 120 mm or less.

On the side opposite to the other sheet 23B in the extended portion 4 of the present embodiment, as shown in Fig. 1(b), a winding fixing portion 5 is provided. The winding fixing portion 5 is capable of being engaged with the other sheet 23B, and the tubular body 2 in the rolled state is engaged with the winding fixing portion 5 to maintain the rolled state of the tubular body 2. As the winding fixing portion 5, any of the winding fixing portions can be used as long as it can be engaged with the other sheet 23B. In the present embodiment, a male member of a mechanical fastener is used.

The hair holder 1A may not have the winding locking piece 8, but it is preferable to have the winding locking piece 8 as shown in Figs. 1(a) and (b). The hair holding device 1A has a winding locking piece 8 that extends toward the outer side in the width direction Y in the vicinity of the opening 22 side of the other end of each of the both side edges 25 of the tubular body 2. The winding lock piece 8 is formed integrally with the one sheet 23A from the tubular body 2 in the width direction Y. When the tubular body 2 through which the hair bundle H is inserted is wound, if the tubular body 2 is wound up by grasping the winding locking piece by hand, the tubular body 2 can be easily and as needed tightly Roll up. As the winding locking piece 8, for example, the winding locking piece 8 can be provided as described in the paragraph [0019] of JP-A-2006-129972. The method, shape, size, thickness, arrangement, and the like of the winding locking piece 8 can be appropriately set.

The sewn portion 24 of the present embodiment is formed by sewing both side edges of the one sheet 23A and the other sheet 23B by sewing threads. The hair holder 1A has a plurality of winding diameters, and the color of the sewing thread is used separately according to the type of the hair holder 1A. From the viewpoint of easily recognizing the type of the hair holder 1A, the color of the sewing line forming the sewn portion is preferably It is different from the color of the both side edges of the two sheets 23A, 23B constituting the outer surface of the cylindrical body 2, and more preferably the part of the sewn portion forming one or two sheets (this portion) In the embodiment, the colors of the both side edges are different. Here, the two sheets constituting the outer surface of the tubular body 2 are not limited to the sheet materials that can constitute the tubular portion 26. For example, in the hair holder shown in Fig. 7 (a) below, the reinforcing member 3 is one of the two sheets constituting the outer surface of the tubular body 2. The color of the sewing line and the color of both side edges of the two sheets 23A and 23B constituting the outer surface of the tubular body 2 can be recognized by the observer having the usual attention. Just combine. The color of the sewing line and the color of the both side edges of either of the two sheets 23A, 23B constituting the outer surface of the cylindrical body 2 may be 24 colors classified by the Ostwald hue ring. In the color map, the hue numbers differ by one, but from the viewpoint of further improving the recognition, the color of the two colors is preferably a range in which the hue numbers differ by three or more.

The hair holder 1A can be used for blanching which is subjected to perm treatment by heating. The hair holder 1A is usually exposed to a high temperature of 100 ° C or higher for blanching. From the viewpoint of improving the durability against the use of the blanching, the sewing line forming the sewn portion 24 preferably has heat resistance. Here, the term "heat resistance" means that when the component is exposed to an environment of 100 ° C or higher for 20 minutes, the components such as the resin constituting the sewing line are not melted or are not damaged, and pores are generated. The heat resistant temperature of the sewing line is preferably 100 ° C or higher, more preferably 160 ° C or higher, further preferably 600 ° C or lower, more preferably 300 ° C or lower, and further preferably 100 ° C or higher and 600 ° C or lower, more preferably It is 160 ° C or more and 300 ° C or less. When the heat-resistant temperature is exposed to a specific temperature for 20 minutes, the components such as the resin constituting the sewing line may be melted or may be damaged to cause a hole or the like.

The melting point of the sewing line is preferably 100 ° C or higher, more preferably 140 ° C or higher, and still more preferably 200 ° C or higher from the viewpoint of improving heat resistance. The melting point can be measured by the DSC method using the product number Diamond DSC manufactured by PerkinElmer.
From the same viewpoint as described above, the softening point of the sewing line is preferably 100 ° C or higher, more preferably 120 ° C or higher, and still more preferably 180 ° C or higher. The softening point can be measured in accordance with the method described in ASTM D1525.
Examples of the material of the sewing line having the heat-resistant temperature, the melting point, and the softening point in the above numerical range include synthetic resin fibers such as polyester, nylon, polyethylene, and polypropylene, or natural fibers such as crepe, cotton, wool, and hemp. Wait.

The hair holding device 1A is used together with a hair treatment agent such as a hair lotion, and the strength of the sewing thread is lowered due to the influence of the acid contained in the hair treatment agent. The sewing line is preferably an acid resistant material from the viewpoint of improving the durability of the acid which may be contained in the hair treatment agent. Here, the acid resistance is a material that does not decrease in the strength of the sewing line even in concentrated hydrochloric acid (concentration: 20%).
When the sewing line is immersed in concentrated hydrochloric acid (concentration: 20%) for 60 minutes, the strength is preferably 0.8 cN/dtex or more, more preferably 2.4 cN/dtex or more. The strength of the sewing line can be measured by a tensile strength test method (JIS L 1013) of the model YS-200 manufactured by Daiei Scientific Seiko Co., Ltd.

The hair holding device 1A is supplied with a hair treatment agent from the outer surface of the other surface sheet 23B in a state in which the hair bundle is held in the tubular body 2. Further, the hair holder 1A has a hair bundle for being wetted by water or the like. It is preferable that the sewing line is a material having low water absorbability from the viewpoint of easily drying the sewing thread after the sewing line absorbs the hair treatment agent, water, or the like. According to this configuration, it is possible to suppress the growth of bacteria in a humid environment and to maintain the hair holder more cleanly. Examples of the material having low water absorbability include polyolefins such as polyethylene and polypropylene; polyesters such as polyethylene terephthalate; polyamines such as nylon 6, nylon 66; polyacrylic acid and polymethacrylic acid; A synthetic resin (thermoplastic resin) fiber such as an alkyl ester, a polyvinyl chloride or a polyvinylidene chloride; and one of them may be used alone or in combination of two or more.

Next, the hair holder 1B according to the second embodiment of the present invention will be described. In the hair holder of the second embodiment, the hair holder 1A of the first embodiment will be appropriately applied as long as it does not contradict each other. The hair holder 1A of the first embodiment includes the above-described configuration (1). However, the hair holder of the second embodiment includes the reinforcing member 3 and the tubular body 2 including the nonwoven fabric instead of the above configuration (1).

The hair holder according to the second embodiment has two or more sheet materials which are spread over a pair of sewn portions 24 and 24, and a reinforcing member 3 which is disposed in each of the pair of sewn portions 24 and 24. . In the second embodiment, the two or more sheets constituting the tubular body 2 include a sheet constituting the tubular portion 26 and a reinforcing member disposed on each of the pair of sewn portions 24 and 24. The reinforcing material 3 is a sheet which is disposed for the purpose of improving the rigidity of the tubular body 2 and increasing the curling force of the tubular body 2. The length of the reinforcing material 3 in the width direction Y may be a length that does not span and between the pair of sewn portions 24, 24. The reinforcing material 3 is disposed so as to overlap the sewn portion 24, but is preferably disposed in the longitudinal direction X on both side edges 25 of the tubular body 2. According to this configuration, the hair bundle is uniformly diffused in the tubular portion 26, so that when the hair holder is wound, it is easy to apply tension to the hair bundle, and the curling force can be improved.

The hair holder having the above-described reinforcing material 3 is shown in Figs. 7(a) and (b). The hair holder shown in Fig. 7 (a) has a reinforcing member 3 disposed on the outer surface of any of the two sheet materials 23A and 23B constituting the tubular portion 26. From the viewpoint of further improving the curling force, the reinforcing member 3 is preferably disposed on the outer surface of the other sheet 23B. The outer surface of the other sheet 23B refers to a surface opposite to the surface facing the one sheet 23A, and is a surface opposite to the side on which the side on which the hair bundle is inserted is formed. The hair holder shown in Fig. 7(b) has a reinforcing member 3 disposed between the two sheet materials 23A and 23B constituting the tubular portion 26. Further, as described above, the sheets constituting the tubular body 2 are firmly joined to each other, but for convenience of explanation, the sheets constituting the tubular body 2 are depicted in FIGS. 7(a) and 7(b). There is a gap between them. The reinforcing material 3 is integrated with the sheets 23A and 23B constituting the tubular portion 26 by the sewn portion 24.

In the second embodiment, the sheet constituting the tubular portion 26 is a non-woven fabric, and the reinforcing member 3 is a resin film. As the non-woven fabric, the above polyethylene non-woven fabric, polyethylene terephthalate non-woven fabric, or the like can be used. Further, part or all of the sheets constituting the tubular portion 26 are composed of a shape memory sheet.
Examples of the reinforcing material 3 include a polyolefin film and a polyester film. The reinforcing material 3 may be a porous sheet or a non-porous sheet.

In the hair holding device according to the second embodiment, the reinforcing member 3 having a higher rigidity is more likely to be buckling during winding than the tubular body 2 including the nonwoven fabric, and can be stably maintained even when used plural times. Curly hair. Further, the reinforcing material 3 including the resin film makes it difficult to expand the pinholes of the thread in the sewn portion 24, so that the thread is not easily frayed, and the stitching as designed can be performed, and the hair holder is excellent in productivity and durability. On the other hand, when the reinforcing material 3 including the resin film and the tubular body 2 including the nonwoven fabric are integrated by heat sealing, there is a case where the reinforcing material and the tubular body are not easily fused. Moreover, when the rigidity of the cylindrical body 2 is improved by the reinforcing material 3, it is easy to apply tension to the hair bundle at the time of winding the hair holder, and the curling force can be improved. In particular, when the reinforcing member 3 is disposed on the outer surface of the other sheet 23B (see FIG. 7(a)), when the hair bundle is inserted into the tubular body 2, the thickness of the reinforcing member 3 absorbs the hair bundle. The thickness is suppressed while the thickness of the tubular portion 26 is suppressed. Thereby, the hair bundle inserted into the tubular body 2 is less likely to be detached, and the difference in the winding diameter between the outermost peripheral portion and the innermost peripheral portion of the hair holder in the wound state can be reduced, and the hair bundle can be imparted. Beautiful curly shape.

The reinforcing member 3 preferably contains a polyester film, and more preferably contains a polyethylene terephthalate film, from the viewpoint of more effectively exerting one or more of the above effects. Further, from the same viewpoint as described above, the thickness of the reinforcing member 3 is preferably 0.10 mm or more, more preferably 0.15 mm or more, further preferably 0.40 mm or less, more preferably 0.30 mm or less, and further preferably It is 0.10 mm or more and 0.40 mm or less, more preferably 0.15 mm or more and 0.30 mm or less.

From the viewpoint of further increasing the curling force, the lengths D24 and W24' of the above-mentioned arrangement region F1 in the width direction Y are preferably 30 with respect to the length W3 of the reinforcing member 3 in the width direction Y (see FIG. 7(a)). More preferably, it is 45% or more, more preferably 95% or less, more preferably 85% or less, further preferably 30% or more and 95% or less, more preferably 45% or more and 85% or less.

The length L24a, L34 of the stitching portion 24 (see FIGS. 8(a) and (b)) with respect to the reinforcing material in the width direction Y from the viewpoint of making the joining of the reinforcing material 3 and the tubular body 2 stronger. The length W3 of 3 (see Fig. 7(a)) is preferably 2% or more, more preferably 5% or more, further preferably 100% or less, more preferably 50% or less, and further preferably 2% or more. And 100% or less, more preferably 5% or more and 50% or less.
From the same viewpoint as described above, the distance W3 between the stitches P24a and Pb of the sewn portion 24 with respect to the reinforcing material 3 in the width direction Y (see FIG. 7(a)) is preferably 2% or more, and more preferably More preferably, it is 5% or more, more preferably 100% or less, more preferably 50% or less, further preferably 2% or more and 100% or less, more preferably 5% or more and 50% or less.

The sewn portion 24 formed in the arrangement region of the hair holder of the second embodiment may be the plurality of linear sewn portions or the following buckling portion.

Fig. 3 is a view showing a hair holder 1B according to a third embodiment of the present invention. In the hair holder 1B of the third embodiment, the hair holders according to the first and second embodiments described above are appropriately applied as long as they do not contradict each other. Specifically, the configuration of the hair holder of the first and second embodiments can be suitably employed in addition to the configuration of the arrangement region of the suture portion described below. In Fig. 3, the same components as those of the hair holder 1A of the first embodiment are denoted by the same reference numerals as those of the hair holder 1A of the first embodiment.

The hair holder 1B of the third embodiment has a pair of sewn portions 24 on both side edge portions 25. In the present embodiment, the sewn portion 24' includes an arrangement region F2 including a flexion sewn portion 24T in which the serrated pins 24e and 24f extending in the longitudinal direction X are arranged. The flexure sewing portion 24T includes two types of stitches 24e and 24f that extend in two directions that intersect the longitudinal direction X. The two kinds of stitches 24e and 24f are alternately arranged side by side in the longitudinal direction X to form serrations extending in the longitudinal direction X. In the array region F2, the two kinds of stitches 24e and 24f are arranged in the longitudinal direction X so as to have a width in the width direction Y. In this way, each of the pair of sewn portions 24' and 24' has an area arranging as the arranging region F2, that is, the buckling portion 24T in which the stitches 24e and 24f having the sewing direction and the direction along the longitudinal direction X are arranged.
The hair holding device 1B including the arranging region F2 of the flexing and squeezing portion 24T includes the configuration (1) of the first embodiment described above, and exhibits the same effects as those of the first embodiment. In other words, the hair holder 1B is excellent in the bonding strength between the two or more sheets constituting the tubular body 2, and therefore has excellent durability for repeated use, and the both side edges of the sheets are not entirely covered. It is closely attached, but a part has a void, and the tubular body 2 is less likely to be strained during winding, so that the curling force is excellent. Moreover, the hair holding device 1B is easy to roll up and has excellent workability.

The length W24' (see FIG. 3) of the array region F2 of the sewn portion 24' in the width direction Y is increased with respect to the width direction from the viewpoint of improving the joint strength between the sheets 23A and 23B constituting the tubular body 2. The length W2 of the upper cylindrical body 2 is preferably 1% or more, more preferably 3% or more, further preferably 20% or less, more preferably 10% or less, and further preferably 1% or more and 20%. Hereinafter, it is more preferably 3% or more and 10% or less.
The length W24' (see FIG. 3) of the array region F2 of the sewn portion 24' in the width direction Y is the maximum length in the width direction Y of the stitches of the stitches 24e, 24f in the array region F2.

The flexing and sewing portion 24T in the sewn portion 24' is a ring formed by the stitches 24e and 24f, that is, the loop formed by the stitching line passing through the two or more sheets constituting the tubular body 2, and the outer surface of the tubular portion 26 is formed. The ring in which the surfaces of the sheets 23A and 23B are exposed is not particularly limited as long as it is in the form of a stitch capable of forming a buckling stitch pattern. For example, the stitching portion 24' can be formed by a single chain stitch, a hand stitch, a lock stitch, a double chain stitch, a seam stitching, and covering any of the stitches of the chain stitch.

The buckling sewing portion 24T may have a stitch that is different in the sewing direction from the longitudinal direction X, and the length of the stitch forming the buckling portion 24T or the distance between the stitches may be different.
The sewing pattern of the buckling sewing portion 24T is, in addition to the zigzag sewing shown in Fig. 3, for example, a hem seam (see Figs. 4(a) to 4(c)) and a dark seam (see Fig. 4(d) - (g)], decorative sewing (see Figs. 4(h) to (t)) and the like. The patterns of Figures 4(a) to (g), (k), (l), (m), (n), (o), (p), (r) and (s) have a sewing direction with respect to the length. The pattern of the portion of the direction X that is inclined. 4(h), (j), (r), (s), and (t) are patterns having a portion in which the sewing direction is parallel to the width direction Y. 4(i), (n) and (q) are sewing patterns having curved portions. 4(c), (k), (l), (m), (n), (o), (p), and (r) have patterns of portions where the stitches cross each other. The buckling sewing portion 24T preferably has a stitch having a sewing direction inclined with respect to the longitudinal direction X, a stitching direction parallel to the width direction Y, or the like, from the viewpoint of temporarily maintaining the winding diameter after the hair holder is rolled up. A combination of stitches. When such a buckling-spun portion 24T is provided, the hair holding device exhibits resistance to the restoring force of the shape to be changed to the original shape, that is, the shape before rolling, so that it is easy to maintain the winding diameter and the hair after rolling up The holder is not easily deformed.
The flexing and sewing portion 24T may be formed by one pattern such as zigzag sewing or blind stitching, or may be formed by combining a plurality of patterns. Such a buckling sewing portion 24T can be formed by a known method such as a sewing machine.

The flexion sewing portion 24T is configured such that a part or all of the stitches of the flexure sewing portion 24T are inclined with respect to the longitudinal direction X of the tubular body 2. The lengths L24e and L24f of the stitches 24e and 24f of the flexure sewing portion 24T are lengths of a line segment formed by sewing a needle, that is, a line segment formed by a sewing line connecting the two pinholes (refer to Fig. 9(a) and (b)].
From the viewpoint of increasing the curling force, the length of the stitching portion of the flexing sewing portion 24T in the sewn portion 24 of the other sheet 23B is preferably 101% or more with respect to the length of the stitch in the sewn portion 24 of the one sheet 23A. More preferably, it is 105% or more, and further preferably 135% or less, more preferably 125% or less, further preferably 101% or more and 135% or less, more preferably 105% or more and 125% or less.
From the same viewpoint as described above, the length of the stitching portion of the buckling sewing portion 24T in the sewn portion 24 of the other sheet 23B is preferably 1.5 mm or more, more preferably 2.0 mm or more, and further preferably 5.5 mm or less. More preferably, it is 3.5 mm or less, and further preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
In the same manner as described above, it is preferable that the length of the stitch in the stitching portion 24 of the one sheet 23A is shorter than the length of the stitch in the stitching portion 24 of the other sheet 23B, preferably 1.5 mm or more. Preferably, it is 2.0 mm or more, more preferably 5.5 mm or less, more preferably 3.5 mm or less, and further preferably 1.5 mm or more and 5.5 mm or less, more preferably 2.0 mm or more and 3.5 mm or less.
The length of the stitches was measured by the above method.

The flexion sewing portion 24T has a plurality of stitches arranged in a predetermined pattern Pr (see FIGS. 9(a) and (b)). The length of the specific pattern Pr in the longitudinal direction X of the tubular body 2 is defined as the distance Pb between the stitches of the flexure sewing portion 24T. The distance Pb between the stitches of the flexion sewing portion 24T is the length in the longitudinal direction X from the pinhole which is the starting point to the pinhole which becomes the end point in the specific pattern Pr (refer to FIGS. 9(a) and (b)).
From the viewpoint of more effectively exerting the above-described curling force and the effect of durability for repeated use, the stitch pitch Pb of the flexure sewing portion 24T (see FIGS. 9(a) and (b)) is relative to the length L24e of the stitch 24a, L24f is preferably 50% or more, more preferably 100% or more, further preferably 500% or less, more preferably 300% or less, further preferably 50% or more and 500% or less, more preferably 100% or more. And less than 300%. In the flexing and sewing portion 24T, the plurality of stitches 24e and 24f may be formed at intervals or may be formed without being spaced apart.

In the same manner as described above, the size of the sewn portion 24 in the hair holder 1B is preferably the same as the size of the sewn portion 24 in the hair holder 1A of the first embodiment.

The hair holder 1B having the arrangement region F2 of the flexion sewing portion 24T may have a reverse slit portion or an extended sewn portion as in the first embodiment. In the case where the sewn portion 24' is formed in the sewing direction from the opening portion 21 side of one end toward the opening portion 22 side of the other end, the reverse slit portion is substantially reversed from the sewing direction. Or sewing a part of the number of needles in a direction different from the sewing direction. For example, the sewing direction of the reverse slit portion of the hair holder 1B having the buckling sewing pattern may be a direction that is substantially reversed from the starting point of the buckling sewing pattern toward the end point or a direction different from the direction from the starting point toward the end point.

The hair holder of the present invention is not limited to the above-described first to third embodiments, and can be appropriately changed without departing from the gist of the present invention.
For example, the hair holder 1 may have a portion having a locally different length in the width direction Y within a range that does not impair the effects of the present invention. Further, in the sewn portion, the linear sewn portion of the first embodiment and the buckling sewn portion of the third embodiment may be formed in a mixed manner in the longitudinal direction X.
Further, each of the hair holders according to the first and third embodiments may have the reinforcing member 3 in the sewn portion 24, and the hair holder according to the second embodiment may have the above configuration (1).
The reinforcing material 3 in the second embodiment is a resin film, but the reinforcing material 3 may be, for example, a non-woven fabric (polyethylene nonwoven fabric, polyethylene terephthalate non-woven fabric, etc.), a woven fabric, a mesh sheet, or a porous material. Or a sheet material such as a non-porous resin film (such as a polyethylene film or a polyethylene terephthalate film), a paper, a polymer material sheet, a rubber sheet, or a composite of two or more thereof .
Further, the shape of the sheet material constituting the "cylindrical body 2" in the hair holder 1 of the present invention and the surface state thereof may be those in which the tubular body of the above-described form can be formed, and the surface of the sheet material may be Concave surface.

Further, the hair holder of the present invention can be used for a perm treatment which imparts curl to the hair using a hair treatment agent, but can also be used for a treatment of imparting curl to the hair without using a hair treatment agent. For example, it is also applicable to heat treatment by a hair dryer or the like after winding the hair bundle, or to heat the dried hair in a wound state, or to wind the hair in a wet state. The state is maintained and allowed to dry naturally, and the hair is given a curling condition or the like.

The hair holder of the present invention and the long hair insert of the hair bundle H inserted into the tubular body 2 can be used at the same time. From the viewpoint of making the insertion work of the hair bundle H easier, the hair insertion device is preferably provided with a hook portion capable of hooking the hair bundle H. As the hair inserting device, those described in Japanese Patent Laid-Open Publication No. 2008-61959 can also be used.

Next, a hair treatment method in which the hair (hair) is directly curled by using the hair holder 1A of the first embodiment will be described with reference to Fig. 5 . In the hair processing method using the hair holder 1A, the tubular body 2 is rolled up together with the hair bundle H inserted into the cylindrical body 2. The hair holder can adjust the winding diameter of the hair bundle H according to the winding condition at the time of winding up.

First, according to the amount of the hair bundle H or the curl shape to be obtained, the hair holder 1A including the tubular body 2 having an appropriate length and width is used, and the hair bundle H is inserted as shown in Fig. 5(a). The opening portion 21 of one end of the cylindrical body 2 has been stretched. At this time, the opening portion 21 at one end of the hair holding device 1A may be opened in an elliptical shape. However, if necessary, the opening portion 21 has a true circular opening to facilitate the smooth insertion of the hair bundle H. Moreover, from the viewpoint of smoothly inserting the hair bundle H, it is preferable to perform the insertion operation of the hair bundle H by using the hair insert. Further, as shown in FIG. 5(a), the front end of the hair bundle H may be extended from the opening portion 22 at the other end of the tubular body 2.

After the hair bundle H is inserted into the tubular body 2, as shown in Figs. 5(b) and 5(c), the tubular body 2 is made of the sheet 23A from the side of the opening portion 22 at the other end. Roll up.

Next, the hair treatment agent for perm is applied to the hair bundle H which is wound up by the hair holder 1A. The hair treatment agent is applied to the hair bundle H from the outer side of the tubular body 2. Then, after a certain period of time, the hair bundle H is pulled out from the tubular body 2, and shampooing or the like is performed to complete the perm treatment. In the case of the hair treatment agent for the two-part type perm, the hair bundle H wound up by the hair holder 1A can be applied to the outer side of the tubular body 2, and the hair bundle H can be pulled out. The second agent was applied to the hair bundle H before. Then, after a certain period of time, the hair bundle H is pulled out from the tubular body 2, and shampooing or the like is performed to complete the perm treatment.

In the hair treatment method, the hair holder of the second embodiment and the hair holder 1B of the third embodiment are used, and the hair bundle can be treated by the same method as described above.

In the method of manufacturing the hair holder according to the first to third embodiments, the two sheets of one sheet 23A and the other sheet 23B are opposed to each other, and the sheet 23A is formed along the longitudinal direction. The side portions of the side portion and the other sheet 23B along the longitudinal direction are joined to each other by stitching. The stitching is performed along the longitudinal direction of the two sheets 23A, 23B so that the stitches have a width. Thereby, the tubular body 2 having the pair of sewn portions 24, 24 is formed. Further, the reinforcing sheet may be joined by stitching together with the one sheet 23A and the other sheet 23B. In this manner, two or more sheets are joined by sewing, whereby a hair holder having a cylindrical body 2 capable of inserting a hair bundle between the two or more sheets in the longitudinal direction X can be manufactured. .

The scope of the invention is not limited by the embodiments described above.
For example, the hair treatment agent may be, in addition to the permanent wave agent, a hair dye, a decolorizing agent, a styling agent, water, or the like.

The present invention further discloses the following hair holder.
<1>
A hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and a width direction orthogonal to the longitudinal direction, Further, the cylindrical body has a pair of sewn portions, which are formed by integrating two or more sheets by stitching, and a cylindrical portion between the pair of sewn portions and for inserting the hair bundle And the pair of sewn portions respectively extend in a longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in a width in the width direction of the tubular body, and the two or more sheets are The sheet constituting the cylindrical portion is included, and a part or all of the sheets constituting the cylindrical portion are composed of a shape memory sheet, and the sheet is located outside when the cylindrical body is rolled up The length of the stitches in the above-mentioned stitched portion is longer than that of the inner side sheet.

<2>
The hair holder according to the above <1>, wherein the sheet located on the inner side when the cylindrical body is wound up is one sheet, and the sheet located on the outer side is the other sheet.
The length L24a of the stitch in the stitching portion of the other sheet is 101% or more, preferably 105% or more, and 135% or less with respect to the length L34 of the stitch in the stitching portion of the one sheet. It is preferably 125% or less, and further preferably 101% or more and 135% or less, preferably 105% or more and 125% or less.
<3>
The hair holder according to the above <2>, wherein the length L24a of the stitch in the stitching portion of the other sheet is 1.5 mm or more, preferably 2.0 mm or more, and 5.5 mm or less, preferably 3.5 mm. Hereinafter, it is 1.5 mm or more and 5.5 mm or less, preferably 2.0 mm or more and 3.5 mm or less.
<4>
The hair holder according to the above <2>, wherein the length L34 of the stitch in the stitching portion of the one sheet is 1.5 mm or more, preferably 2.0 mm or more, and more preferably 5.5 mm or less. It is 3.5 mm or less, and is 1.5 mm or more and 5.5 mm or less, preferably 2.0 mm or more and 3.5 mm or less.
<5>
The hair holder according to any one of the above aspects, comprising: the two or more sheet materials, which are interposed between the pair of sewn portions; and the reinforcing material disposed on the one For each of the stitching parts.
<6>
The hair holder according to the above <5>, wherein the reinforcing material is selected from the group consisting of a nonwoven fabric, a woven fabric, a mesh sheet, a porous resin film, a non-porous resin film, paper, a polymer material sheet, a rubber sheet, At least one of a group of sheet-like materials of a composite of two or more kinds thereof, and the non-woven fabric is a polyethylene non-woven fabric or a polyethylene terephthalate non-woven fabric, and the above porous resin film or the above non-porous material The resin film is a polyethylene film or a polyethylene terephthalate film.
<7>
The hair holder according to any one of the above-mentioned items, wherein the material for forming the two or more sheets is selected from the group consisting of non-woven fabrics, woven fabrics, mesh sheets, porous resin films, and non-woven fabrics. At least one of a group consisting of a porous resin film, a paper, a polymer material sheet, a rubber sheet, and a composite of two or more thereof, and the non-woven fabric is polyethylene non-woven fabric or polyethylene terephthalate The diester is not woven, and the porous resin film or the non-porous resin film is a polyethylene film or a polyethylene terephthalate film.

<8>
A hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and a width direction orthogonal to the longitudinal direction, Further, the cylindrical body has a pair of sewn portions, which are formed by integrating two or more sheets by stitching, and a cylindrical portion between the pair of sewn portions and for inserting the hair bundle And the pair of sewn portions respectively extend in a longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in a width in the width direction of the tubular body, and the two or more sheets are The sheet constituting the tubular portion and the reinforcing member disposed in each of the pair of sewn portions, wherein the sheet constituting the tubular portion is a non-woven fabric, and the reinforcing member is a resin film and constitutes the tubular portion. One or all of the sheets of the sheet are composed of a shape memory sheet.
<9>
A hair holder according to the above <8>, wherein the reinforcing material comprises a polyester film.
<10>
The hair holder according to the above <8>, wherein the thickness of the reinforcing material is 0.10 mm or more, preferably 0.12 mm or more, and further 0.35 mm or less, preferably 0.30 mm or less, and 0.10. It is not less than mm and not more than 0.35 mm, preferably not less than 0.12 mm and not more than 0.30 mm.
<11>
The hair holder of any one of the above-mentioned <8>, wherein the reinforcing material comprises a polyethylene terephthalate film and has a thickness of 0.19 mm.
<12>
The hair holder according to any one of the above-mentioned <8>, wherein the reinforcing material is disposed on an outer surface of the sheet located outside when rolled up.

<13>
The hair holder according to any one of the above-mentioned items, wherein the pair of sewn portions each have a region as the arrangement region, that is, a plurality of linear sewn portions in which the stitches are linearly arranged.
<14>
The hair holder according to the above <13>, wherein the pair of sewn portions are formed on each of both side edges of the two or more sheets, and are parallel to each other, and the straight sewn portion is along the cylindrical body The above-described width directions are formed side by side in two rows.
<15>
The hair holder of the above-mentioned <13> or <14>, wherein the straight sewn portion of the pair of sewn portions is exposed on a surface of any one of two sheets constituting the outer surface of the tubular portion The stitches are parallel to the longitudinal direction of the cylindrical body.
<16>
The hair holder according to any one of the above-mentioned items, wherein the linear sewing unit is disposed in the longitudinal direction of the tubular body at a same interval by a plurality of stitches having the same length. The surface of any one of the two sheets on the outer surface of the cylindrical portion is formed.
<17>
The hair holder according to any one of the above-mentioned items, wherein the pair of sewn portions are formed by arranging two or more of the straight sewn portions in the array region.
<18>
The hair holder according to any one of the above-mentioned items, wherein the length L24 of the sewn portion in the longitudinal direction is 80% or more with respect to the length L2 of the tubular body in the longitudinal direction, preferably It is 100% or more, further 120% or less, preferably 110%, and further 80% or more and 120% or less, preferably 100% or more and 110% or less.
<19>
The hair holder of any one of the above-mentioned <13>, wherein the length L24a of the stitch exposed on the surface of any one of the two sheets constituting the outer surface of the cylindrical portion is relative to the above The length L24 of the sewn portion in the longitudinal direction is 0.01% or more, preferably 0.1% or more, more preferably 5% or less, preferably 2% or less, and further preferably 0.01% or more and 5% or less. 0.1% or more and 2% or less.
<20>
The hair holder of any one of the above-mentioned <13>, wherein the length of the stitching portion from the end of one of the stitches to the end of the next stitch is the distance P24a of the stitches with respect to the stitches. The length L24a is 50% or more, preferably 100% or more, further 300% or less, preferably 200% or less, and further 50% or more and 300% or less, preferably 100% or more and 300% or less.

<21>
The hair holder according to any one of the above-mentioned items, wherein the pair of sewn portions each have an area as the arrangement area, that is, the sewing direction and the length along the cylindrical body are arranged The flexing and sewing part of the stitches with different directions.
<22>
The hair holder according to the above <21>, wherein the buckling sewing portion has a stitch in which the sewing direction is inclined with respect to the longitudinal direction, a stitch in which the sewing direction is parallel to the width direction, or a combination of the stitches.
<23>
The hair holder according to any one of the above-mentioned items, wherein the length of the array region in the width direction of the cylindrical body is 1% or more with respect to a length of the tubular body in the width direction. It is preferably 3% or more, further 20% or less, preferably 10% or less, and further preferably 1% or more and 20% or less, preferably 3% or more and 10% or less.
<24>
The hair holder according to any one of the above-mentioned items, wherein the length of the array region in the width direction of the cylindrical body is 3% or more with respect to the length of the tubular body in the width direction. And 10% or less.
<25>
The hair holder according to any one of the above-mentioned items, wherein the two or more sheets of the two or more sheets of the cylindrical body are integrated with each other by the pair of sewn portions.
<26>
The hair holder according to any one of the above-mentioned items, wherein the two or more sheets are joined to each other by the sewn portions, and the portions other than the sewn portions are not joined to each other.
<27>
The hair holder according to any one of the above aspects, wherein the sewn portion has an inverted portion at least one end side in a longitudinal direction of the sewn portion.
<28>
The hair holder according to any one of the above aspects, wherein the suture portion has an inverted portion at an end portion of the one end portion of the one end portion of the sewn portion in the longitudinal direction of the tubular body. .
<29>
The hair holder according to the above <27> or <28>, wherein the length L24b of the back slit portion is one stitch or more, preferably 3 stitches, of a stitch having the same length as one of the stitches of the stitching portion. Above the needle.
<30>
The hair holder according to any one of the items <27>, wherein the back slit portion is formed in a sewing direction, and a part of the back slit portion, preferably all of the back slit portion, is overlapped with the stitching portion.
<31>
The hair holder according to any one of the above aspects, wherein the end portion of the opening of the one end of the tubular body has an extending portion, and the extending portion is the two or more pieces Any one of the materials is formed to extend along the longitudinal direction of the cylindrical body.

<32>
The hair holder according to any one of the above-mentioned items, wherein the one or more of the two or more sheets have an extending portion extending from a longitudinal direction of the tubular body, the extension The extension line of the suture portion in the portion has an extended sewn portion, and the entire or a part of the extended sewn portion is an inverted slit portion.
<33>
The hair holder according to the above <32>, wherein the extended sewn portion is formed by overlapping the edge of the portion where the two or more sheets are overlapped in the longitudinal direction of the tubular body 2.
<34>
The hair holder of any one of the above-mentioned <1> to <33>, wherein the color of the sewing line forming the sewn portion and the two sides of the two sheets constituting the outer surface of the cylindrical body are both sides The color of the edge is different.
<35>
The hair holder according to the above <34>, wherein the color of the sewing line and the color of both side edges of any one of the two sheets constituting the outer surface of the cylindrical body are made by Ostwald. In the color map of the 24 colors classified by the hue circle, the range of the hue numbers differs by one, and preferably ranges of three or more.
<36>
The hair holder according to any one of the above-mentioned items, wherein the sewing line forming the sewn portion has a heat-resistant temperature of 100 ° C or more and 600 ° C or less.
<37>
The hair holder according to any one of the above-mentioned items, wherein the sewing line forming the sewn portion has a heat-resistant temperature of 100 ° C or higher, preferably 160 ° C or higher, and more preferably 600 ° C or lower. It is 300 ° C or less, and is 100 ° C or more and 600 ° C or less, preferably 160 ° C or more and 300 ° C or less.
<38>
The hair holder according to any one of the above-mentioned items, wherein the sewing line forming the sewn portion has a melting point of 100 ° C or higher, preferably 140 ° C or higher, more preferably 200 ° C or higher, and the sewing is performed. The softening point of the wire is 100 ° C or higher, preferably 120 ° C or higher, more preferably 180 ° C or higher.
<39>
The hair holder according to any one of the above-mentioned items, wherein, in the sewing line for forming the sewn portion, the tensile strength is 0.8 cN/dtex or more when immersed in hydrochloric acid having a concentration of 20% for 60 minutes. It is preferably 2.4 cN/dtex or more.

<40>
The hair holder according to any one of the above-mentioned items, wherein the thickness of each of the two or more sheets is 5 μm or more, preferably 10 μm or more, and more preferably 2000 μm or less. Preferably, it is 1500 μm or less, and further, it is 5 μm or more and 2000 μm or less, preferably 10 μm or more and 1500 μm or less.
<41>
The hair holder according to any one of the above-mentioned items, wherein the shape memory sheet is formed by bonding a film having a different heat shrinkage rate or a film having a different tension.
<42>
The hair holder according to any one of the above-mentioned items, wherein the tubular system is restored to the original drum by heating the two or more sheets constituting the cylindrical body. shape.
<43>
The hair holder according to any one of the above-mentioned items, wherein the processing of improving the diffusibility of the hair treatment agent is performed on any one or more of the two or more sheets. Processing for embossing, calendering or resin film formation.
<44>
The hair holder according to any one of the above-mentioned items, wherein the length W2 of the cylindrical body in the width direction is 25 mm or more, preferably 30 mm or more, and further 200 mm or less. It is preferably 150 mm or less, and further preferably 25 mm or more and 200 mm or less, preferably 30 mm or more and 150 mm or less.
<45>
The hair holder according to any one of the above-mentioned items, wherein the length L1 of the hair holder in the longitudinal direction is 50 mm or more, preferably 100 mm or more, and more preferably 400 mm or less. It is 350 mm or less, and is 50 mm or more and 400 mm or less, preferably 100 mm or more and 350 mm or less.
<46>
The hair holder according to any one of the above-mentioned items, wherein the length L2 of the tubular body in the longitudinal direction is 45 mm or more, preferably 90 mm or more, and 300 mm or less. It is preferably 275 mm or less, and further, is 45 mm or more and 300 mm or less, preferably 90 mm or more and 275 mm or less.
<47>
The hair holder of any one of the above-mentioned <1>, wherein the length W22 of the opening of the other end in the width direction is 40.0% with respect to the length W2 of the cylindrical body in the width direction. The above is preferably 66.7% or more, further 97.5% or less, preferably 96.7% or less, and further 40.0% or more and 97.5% or less, preferably 66.7% or more and 96.7% or less.

<48>
The hair holder according to any one of the above-mentioned items, wherein the length W22 of the opening of the other end in the width direction is 10 mm or more, preferably 20 mm or more, and 195 mm. Hereinafter, it is preferably 145 mm or less, and further preferably 10 mm or more and 195 mm or less, preferably 20 mm or more and 145 mm or less.
<49>
The hair holder according to any one of the above-mentioned items, wherein the hair holder is attached to any one or more of the two or more sheets, or has a horizontal length extending in the width direction. In the slit, the length W6 of the slit in the width direction is 40.0% or more, preferably 50.0% or more, and 90.0% or less, preferably 90.0% or less, with respect to the length W2 of the cylindrical body in the width direction. It is 80.0% or less, and further, it is 40.0% or more and 90.0% or less, preferably 50.0% or more and 80.0% or less.
<50>
The hair holder according to any one of the above-mentioned items, wherein the hair holder is attached to any one or more of the two or more sheets, and has a horizontal length extending in the width direction. The slit has a length W6 of the slit in the width direction of 10 mm or more, preferably 15 mm or more, and further 180 mm or less, preferably 120 mm or less, and further, 10 mm or more and 180 mm. Hereinafter, it is preferably 15 mm or more and 120 mm or less.
<51>
The hair holder according to any one of the above-mentioned items, wherein the outer diameter D2 of the tubular body in a wound state is 10 mm or more, preferably 15 mm or more, and further 60 mm or less. It is preferably 50 mm or less, and further preferably 10 mm or more and 60 mm or less, preferably 15 mm or more and 50 mm or less.
<52>
The hair holder according to any one of the above-mentioned items, wherein the sheet located on the inner side when the cylindrical body is wound up is a one-side sheet, and the sheet on the outer side is set as the other side. When the sheet is
The length L34 of the stitch in the stitched portion of the one sheet is 3% or more, preferably 4% or more, and further 15% or less, preferably 13% or less, with respect to the outer diameter D2 of the cylindrical body. Further, it is 3% or more and 15% or less, preferably 4% or more and 13% or less.
Example

Hereinafter, the present invention will be described in more detail by way of examples. The scope of the invention is not limited by the embodiment.

[Reference Example 1]
A hair holder having a sewn portion formed by sewing a plurality of straight lines is prepared. The hair holding device is formed by sewing and joining two side edges of one sheet and the other sheet in a line in which two strips are arranged in the width direction, and integrating the sheets.
The non-woven fabric obtained by the wet papermaking method was used as the two sheets constituting the hair holder. The raw material fibers of the above non-woven fabric include: yttrium fiber (denier 1.7 dtex, fiber diameter 12 μm, fiber length 5 mm) 22%, PET (polyethylene terephthalate) fiber (denier 1.7 dtex, fiber diameter) 12.5 μm, fiber length 10 mm) 18%, PP/PE (polypropylene/polyethylene, polypropylene/polyethylene) fiber (sheath type composite fiber, fineness 2.2 dtex, fiber diameter 17.5 μm, fiber length 10 mm) 50% and PVA (polyvinyl alcohol, polyvinyl alcohol) fiber (denier 1.1 dtex, fiber diameter 10 μm, fiber length 3 mm) 10%.
For the straight-line sewing, a polyester sewing thread of the product number "Schappe Spun sewing machine thread, #60" manufactured by FUJIX Co., Ltd. was used.

In the hair holder of Reference Example 1, two sheets of a rectangular shape having the same shape and the same size were superposed, and a sewn portion was formed thereon, and the two sheets were integrated and manufactured. The length of the hair holder in the longitudinal direction X is 300 mm, the length in the width direction Y is 100 mm, and the length between the sewn portions in the width direction Y, that is, the length of the tubular portion in the width direction Y is 70 mm. The stitching portion is formed on the side of the opening side of one end by the two types of the stitches described in JIS L 0120, which are arranged in the width direction. The part is sewn in a straight line with a length X of 250 mm. The suture portion of the reference example 1 is formed such that the end portion on the opening side of the other end of the hair holder substantially coincides with one end portion of the sewn portion. In other words, the end portion of the sewn portion on the opening side of one end is formed by separating the end portion on the opening side of one end of the hair holder from the inner side in the longitudinal direction by 50 mm. The interval between the straight stitches in the width direction Y is set to 5 mm. Also, set the length of the stitches to 2 mm and the length of the stitches to 2 mm.

[Reference Example 2]
A hair holder having the same configuration as that of Reference Example 1 except that the suture portion was formed by serration was prepared. The length of the serrated sewing in the width direction Y is 5 mm. The length of the serrated stitch along the length of the hair holder is 250 mm, the length of the stitch is 2 mm, and the length between the stitches is 6 mm.

[Reference Example 3]
A hair holder having the same configuration as that of Reference Example 1 except for the reversed portion is provided in the suture portion on the opening side of the one end and the other end. The reverse stitching portion is formed so as to overlap the stitching portion in the longitudinal direction X, and is formed in the same size as the stitching portion. The length of the reverse seam is 12 mm.

[Reference Example 4]
A hair holder having the same configuration as that of Reference Example 2 except for the reversed portion is provided in the sewn portion on the opening side of the opening portion side and the other end of the one end. The reverse slit portion is formed by partially overlapping one of the longitudinal direction of the sewn portion and one of the serrations of the sewn portion, and is sewn by a straight line having the same size as that of Reference Example 1. The length of the back slit along the length of the hair holder is 12 mm.

[Reference Example 5]
A hair holder having the same configuration as that of Reference Example 1 except that the suture portion was formed by one straight stitching was prepared.

The sewn portion and its peripheral portion were cut out from one side edge portion of the hair holders of Reference Examples 1 to 5, and this was set as a sheet for evaluation. The evaluation sheet has a rectangular shape with a length of 300 mm and a width of 8 mm. Then, the joint strength of the sewn portion of the evaluation sheet was evaluated by the following method.
Since the end portion on the opening side of one end of the two sheets constituting the hair holder is not sewn, the portion of the evaluation sheet corresponding to the end portion on the opening side of the one end can set the two sheets. Open up and down for both directions. In the state in which the two sheets are opened in a two-way manner, the sheet is attached to the upper chuck of a tensile testing machine ("Autograph AG-5kNXplus" manufactured by Shimadzu Corporation), and the other is placed. The sheet is mounted to the lower chuck. At this time, the one piece and the other sheet were held by the two chucks at positions corresponding to the end portions on the opening side of the one end, which were spaced apart from each other by 15 mm in the longitudinal direction. That is, the relationship between the two chucks is set to 70 mm. Then, the state of fixing the position of the lower chuck was maintained, and the upper chuck was raised at a displacement speed of 100 mm/min until the sheet was peeled off from the other sheet.
A graph showing the relationship between the displacement (mm) of the upper chuck and the load (N) applied to the end portion of the evaluation sheet accompanying the displacement is shown in Fig. 6 . In the figure, (A) is Reference Example 1, (B) is Reference Example 2, (C) is Reference Example 3, (D) is Reference Example 4, and (E) is Reference Example 5. In the graph shown in Fig. 6, the larger the peak of the load (N), the higher the joint strength of the sewn portion. Further, even if the joint strength is the same, the smaller the value of the displacement (mm) of the upper chuck at the joint strength, the less likely the sewn portion is to be opened.

According to Fig. 6, the hair holding device of Reference Examples 1 to 4 was shown to have a stronger joint strength than the Reference Example 5. Further, the sewn portion obtained by the sawtooth sewing of Reference Example 2 was shown to have a higher joint strength than the straight stitching of Reference Example 1. Thereby, the hair holders of Reference Examples 1 to 4 have excellent durability even when used repeatedly.
The hair holders of Reference Example 3 and Reference Example 4 exhibited a large load (N) at a point when the displacement (mm) was about 10 mm. By having the reversed portion at the end portion of the sewn portion as described above, the joint strength of the end portion can be improved, and the fray of the sewn portion due to the load can be suppressed.

[Examples 1 to 5 and Comparative Example 1]
A hair holder is manufactured in which a slit is formed on the other sheet except that the sheet constituting the tubular portion is a shape memory sheet, and each stitch in the sewn portion of one sheet and the other sheet is changed. The length is the same as that of Reference Example 1 except for the length and the distance between the stitches. As described above, one sheet is a sheet on the inner side when the hair holder is wound, and the other sheet is a sheet on the outer side at the time of winding. As the shape memory sheet, a polyester nonwoven fabric (trade name "SMASH", manufactured by Asahi Kasei Corporation) was used. After the two sheets of the sheet were pasted and stitched, they were formed into a roll shape to manufacture a hair holder. The hair retainer is in a wound state in which the tubular body is in a drum shape in a natural state. The slit system has a width of 50 mm, and 20 slits are formed at equal intervals along the longitudinal direction of the cylindrical body. The lengths of the stitches in the examples 5 to 9 and the comparative example 2 and the distance between the stitches are shown in Table 1 below.

As a performance evaluation of each of the hair holders of Examples 1 to 5 and Comparative Example 1, the workability, the appearance of the hair holder in the wound state, and the completion of the curl shape of the hair bundle were evaluated. Each evaluation was performed by three panelists based on the following evaluation criteria, and was calculated by calculating the average of the evaluation scores. The evaluation results are shown in Table 1 below. The methods of each evaluation are as follows.

[Evaluation of workability]
The workability of adjusting the winding diameter of the rolled hair holder was evaluated. The evaluation criteria are as follows.
3 points: The cylindrical body in the wound state has substantially no strain, and the winding diameter can be easily adjusted.
2 points: The strain in the wound state is strained, and the adjustment of the winding diameter is somewhat difficult.
1 point: strain and wrinkles are generated in the wound body, and it is difficult to adjust the winding diameter.
The strains in this assessment are visually inspected by the visual inspector to visually confirm the size.

[Evaluation of the Appearance of Hair Holder in Winding State]
The hair holder was wound so that the outer diameter of the cylindrical body became 26 mm, and the hair holder in the wound state was observed from the side surface thereof, and the appearance of the hair holder was evaluated. When the hair holder in the wound state is viewed from the side, generally, the sheet constituting the cylindrical body is formed into a plurality of wound portions and has a spiral shape. The evaluation criteria are as follows.
3 points: no strain was generated, and substantially no gap was formed between adjacent winding portions.
2 points: A strain of 5 or less was generated, and a gap of less than 5 mm was generated in a portion between adjacent winding portions.
1 point: More than 6 strains were generated, and a gap of 5 mm or more was generated in one of the adjacent winding portions.
In the present evaluation, the strain-winding state of the hair holder has a radial length of 1.5 mm or more.

[Evaluation of the completion of the curl shape of the hair bundle]
A hair bundle having a length of 20 cm and a weight of about 20 g in a state where the hair was straightened straight was produced using the hair of an Asian person who had no chemical treatment. The hair bundle is inserted into the tubular body of the hair holder, and the tubular body is rolled up together with the hair bundle. Then, one dose of 5 g of the perm solution (trade name "TOPFORM CAREWAVE H-TG", manufactured by Kao SALONJAPAN Co., Ltd.) was supplied from the slit of the hair holder, and the perm solution was spread over the entire hair bundle. Thereafter, the hair holder was allowed to stand for 15 minutes while holding the hair bundle. Thereafter, the first agent is sufficiently washed with running water. Then, 2 g of a perm solution (trade name "TOPFORM CAREWAVE H-TG", manufactured by Kao SALONJAPAN Co., Ltd.) was supplied, and the perm solution was spread over the entire hair bundle. Thereafter, the hair holder was allowed to stand for 15 minutes while holding the hair bundle. The hair bundle is pulled out from the hair holder, and the second agent is sufficiently washed with running water. It was treated with Run Silk (trade name "Merit", manufactured by Kao Corporation) and thoroughly rinsed with running water. After the hair bundle was wiped dry with a towel, it was naturally dried at room temperature 25 ° C for 24 hours. In this way, the hair bundle is given a curled shape. Then, the completion of the curl shape of the hair bundle was evaluated. The evaluation criteria are as follows.
3 points: The curled shape is firmly imparted to the hair bundle and is completed well.
2 points: The hair bundle is roughly given a curled shape.
1 point: Unexpected undulating shape is imparted to the hair bundle, and the completion is insufficient.

[Table 1]

As can be seen from Table 1, in Examples 1 to 5, the workability of adjusting the winding diameter, the appearance of the hair holder in the wound state, and the completion of the curl shape of the hair bundle were obtained as compared with Comparative Example 1. More excellent results. It is considered that it is affected by the fact that the length of the stitch in the stitched portion of the other sheet is longer than the length of the stitch in the stitched portion of one sheet, and the cylindrical body is not easily wound. Produce strain. According to the results of Table 1, it is shown that when the length of the stitch in the stitched portion of the other sheet is 2.0 mm or more and 4.0 mm or less, the appearance of the hair holder in the wound state and the hair bundle are imparted. The curl shape is effective for completion.

[Examples 6 to 15]
The hair holder is manufactured in the same manner as in the first embodiment except that the length of the stitches of the stitched portion of one sheet and the distance between the stitches are changed, and the reinforcing members are disposed in each of the pair of stitched portions. For the reinforcing material, a resin film (trade name "lumirror S10#188", manufactured by Toray Industries, Inc.) was cut into a length of 250 mm and a width of 8 mm. The reinforcing material is sewn together in a state of being disposed on the outer surface of the other sheet of the tubular body, and is integrated with the tubular body. The hair holder is in a wound state in which the tubular body is in a roll shape in a natural state. The outer diameter of the cylindrical body is shown in Table 2 below. Further, the lengths of the stitches of one of the sheets of Examples 6 to 15 and the distance between the stitches are shown in Table 2 below.

As evaluations of the performance of each of the hair holders of Examples 6 to 15, the state of joining of the reinforcing material and the tubular body, the durability of the joined state, and the completion of the curling shape of the hair bundle were evaluated. Each evaluation was performed by three panelists based on the following evaluation criteria, and was calculated by calculating the average of the evaluation scores. The evaluation results are shown in Table 2 below. The methods of each evaluation are as follows. The evaluation of [the completion of the curl shape of the hair bundle] was carried out by the same method as the performance evaluation of the hair holders of Examples 6 to 15.

[Joining state of reinforcing material and cylindrical body]
The hair holder was placed in an extended state, and the state of engagement between the reinforcing member and the tubular body was observed, and evaluation was performed based on the following evaluation criteria.
3 points: The gap between the reinforcing material and the other sheet is less than 1 mm.
2 points: The gap between the reinforcing material and the other sheet is less than 2 mm.
1 point: The gap between the reinforcing material and the other sheet is 2 mm or more.

[Durability of the joint state of the reinforcing material and the cylindrical body]
The hair bundle is inserted into the tubular body by the hair inserting device described in Japanese Patent Laid-Open Publication No. 2009-195746, and the hair bundle is pulled out, while the hair holder is maintained in the stretched state. . Thereafter, the state of bonding between the reinforcing material and the cylindrical body was observed, and evaluation was performed based on the following evaluation criteria. The hair bundle system is the same as the hair bundle used in the above [Evaluation of the completion of the curl shape of the hair bundle].
3 points: The gap between the reinforcing material and the other sheet is less than 1 mm.
2 points: The gap between the reinforcing material and the other sheet is less than 2 mm.
1 point: The gap between the reinforcing material and the other sheet is 2 mm or more.

[Table 2]

As can be seen from Table 2, Examples 6 to 15 gave results in which the gap between the reinforcing member and the other sheet was less than 2 mm, and the joined state of the reinforcing member and the cylindrical member and the durability thereof were excellent. Further, in the same manner as in Examples 1 to 5, the result of the completion of the curl shape of the hair bundle was obtained. When the gap between the reinforcing material and the other sheet becomes 2 mm or more, the thread of the sewn portion is opened, and the reinforcing material is peeled off from the other sheet. According to the results of Table 2, when the length of the stitch in the stitched portion of one sheet is 15% or less with respect to the outer diameter of the wound body, the joint state of the reinforcing member and the tubular body, and It is effective for the completion of the curl shape imparted by the hair bundle.
[Industrial availability]

According to the present invention, it is possible to provide a hair holder having excellent durability and high curling force for repeated use.

1A‧‧‧hair holder

1B‧‧‧hair holder

2‧‧‧Cylinder

3‧‧‧ reinforcing materials

4‧‧‧Department

5‧‧‧Winding and fixing department

6‧‧‧Slit

8‧‧‧Winding locks

21‧‧‧ openings

22‧‧‧ Openings

23A‧‧‧One sheet

23B‧‧‧The other sheet

24‧‧‧Seal Department

24'‧‧‧Seal Department

24a‧‧‧ stitches

24b‧‧‧ Back seam

24c‧‧‧Extended sewing department

24e‧‧‧ stitches

24f‧‧‧ stitches

24S‧‧‧Line sewing department

24T‧‧‧Flexing and sewing department

25‧‧‧lateral edge

26‧‧‧Cylinder

27‧‧‧

34‧‧‧ stitches

D2‧‧‧ OD

D24‧‧‧ interval

F1‧‧‧ arranging area

F2‧‧‧ Alignment area

H‧‧‧ Hair bundle

L1‧‧‧ length

L2‧‧‧ length

L24‧‧‧ length

L24a‧‧‧ length

L24b‧‧‧ length

L24e, L24f‧‧‧ length

L34‧‧‧ length

P24a‧‧‧ spacing

P34‧‧‧ spacing

Pb‧‧‧ spacing

Pr‧‧‧Special pattern

W2‧‧‧ length

W3‧‧‧ length

W6‧‧‧ length

W22‧‧‧ length

W24'‧‧‧ length

X‧‧‧ length direction

Y‧‧‧Width direction

Fig. 1 is a front view and (b) rear view showing an embodiment of the hair holder of the present invention.

Fig. 2 is a perspective view showing a state in which the hair holder shown in Fig. 1 in which a hair bundle is inserted is wound into a roll shape.

Fig. 3 is a front elevational view showing another embodiment of the hair holder of the present invention.

4(a) to 4(t) are views showing changes in the sewn portion of the hair holder shown in Fig. 2.

5(a) to 5(c) are perspective views sequentially showing the order in which the hair bundle is curled by the hair holder shown in Fig. 1.

Fig. 6 is a graph showing the joint strength of the sewn portions of Reference Examples 1 to 5.

7(a) and 7(b) are views showing a hair holder having a reinforcing material, and are cross-sectional views obtained by cross-sectional observation in the thickness direction along the width direction of the cylindrical body.

Fig. 8(a) is an enlarged plan view showing the length of the stitches of the straight stitching portion shown in Fig. 1(a) and the distance between the stitches, and Fig. 8(b) is a view showing the stitches of the straight stitching portion shown in Fig. 1(b). An enlarged top view of the length and the distance between the stitches.

9(a) and 9(b) are enlarged plan views for explaining the length of the stitches of the flexure sewing portion and the distance between the stitches.

Claims (17)

A hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and a width direction orthogonal to the longitudinal direction; And The cylindrical body has a pair of sewn portions, wherein two or more sheets are integrally formed by stitching, and a tubular portion located between the pair of sewn portions and inserted into the hair bundle; And Each of the pair of sewn portions extends in a longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in a width in the width direction of the tubular body; The two or more sheets include a sheet constituting the tubular portion, and one or all of the sheets constituting the tubular portion are composed of a shape memory sheet, and The sheet located on the outer side when the cylindrical body is wound up has a longer length of the stitch in the sewn portion than the sheet on the inner side. A hair holder comprising a tubular body configured to allow a hair bundle to be inserted from an opening of one end toward an opening of the other end, wherein the tubular body has a longitudinal direction and a width direction orthogonal to the longitudinal direction; And The cylindrical body has a pair of sewn portions, wherein two or more sheets are integrally formed by stitching, and a tubular portion located between the pair of sewn portions and inserted into the hair bundle; And Each of the pair of sewn portions extends in a longitudinal direction of the tubular body, and the sewn portion includes an arrangement region in which the stitches are arranged in a width in the width direction of the tubular body, and The two or more sheets include a sheet constituting the tubular portion and a reinforcing member disposed on each of the pair of sewn portions, and the sheet constituting the tubular portion is a non-woven fabric, and the reinforcing material is a resin film. And One or all of the sheets constituting the above-described tubular portion are composed of a shape memory sheet. The hair holder of claim 2, wherein the reinforcing material comprises a polyester film and has a thickness of 0.10 mm or more and 0.40 m or less. The hair holder of claim 2 or 3, wherein the reinforcing material is disposed on an outer surface of the sheet located outside when rolled up. The hair holder according to claim 1 or 2, wherein each of the pair of sewn portions has a region as the arrangement region, that is, a plurality of linear sewn portions in which the stitches are linearly arranged. The hair holder of claim 5, wherein the stitches are parallel to the length direction of the cylindrical body. The hair holder according to claim 5, wherein the pair of sewn portions are formed by forming two or more of the straight sewn portions in the array region. The hair holder according to claim 1 or 2, wherein each of the pair of sewn portions has a region as the arrangement region, that is, a buckling in which a stitching direction is different from a stitch along a longitudinal direction of the tubular body Sewing department. The hair holder according to claim 8, wherein the buckling sewing portion has a stitch in which the sewing direction is inclined with respect to the longitudinal direction, a stitch in which the sewing direction is parallel to the width direction, or a combination of the stitches. The hair holder according to claim 1 or 2, wherein a length of the array region in the width direction of the cylindrical body is 3% or more and 10% or less with respect to a length of the tubular body in the width direction. The hair holder according to claim 1 or 2, wherein both side edges of the two or more sheets of the cylindrical system are integrated with each other by the pair of sewn portions. The hair holder according to claim 1 or 2, wherein the two or more sheets are joined to each other by the sewn portions, and the portions other than the sewn portions are not joined to each other. The hair holder according to claim 1 or 2, wherein the sewn portion has an inverted portion at least one end side in a longitudinal direction of the sewn portion. The hair holder according to claim 1 or 2, wherein any one or more of the two or more sheets have an extending portion extending from a longitudinal direction of the cylindrical body, and the stitching portion in the extending portion The extension cord has an extended sewn portion, and the entire or a part of the extended sewn portion is an inverted slit portion. The hair holder of claim 1 or 2, wherein a color of the sewing line forming the sewn portion is different from a color of both side edges of any one of the two sheets constituting the outer surface of the cylindrical body. The hair holder of claim 15, wherein the color of the sewing line and the color of both sides of the two sheets constituting the outer surface of the cylindrical body are the Oswald color The color number of the 24-color color chart classified by the ring differs by more than one range. The hair holder of claim 1 or 2, wherein the sewing line forming the sewn portion has a heat-resistant temperature of 100 ° C or more and 600 ° C or less.