JP4939079B2 - Sanitary tampon with applicator - Google Patents

Description

  The present invention relates to a sanitary tampon with an applicator, and particularly relates to a sanitary tampon with a compact type applicator.

  Conventionally, sanitary napkins and sanitary tampons are generally known as feminine sanitary products. Here, the sanitary tampon is an absorbent article with a take-out cord that is inserted into the vagina and absorbs and retains bodily fluids such as menstrual blood. The sanitary tampon is inserted into the vagina. Some are commercially available in a state where they are housed in an insertion tool for assisting (hereinafter referred to as an applicator).

The applicator is composed of a cylindrical housing member that accommodates the absorbing member and an extruded member that is slidably inserted into the housing member. The size of a general tampon applicator is inserted into the vagina. The diameter of the portion to be formed is 10 to 30 mm, and many of the portions having a diameter of about 10 to 20 mm are distributed. Such an applicator is also disclosed in a compact form convenient for packaging and carrying. For example, Patent Document 1 discloses a structure in which the extruded member has a double structure and the two members are contracted to be compact when not in use, and the two members can be connected and connected to be in an expanded state when in use. ing. Specifically, the push-out member is composed of a large-diameter inner cylinder and a small-diameter inner cylinder that is slidably inserted therein, and in use, the small-diameter inner cylinder is pulled backward to engage and connect the two. By forming a single long inner cylinder, it is possible to provide a function of pushing out the absorbing member in the outer cylinder from the tip of the outer cylinder. In such an applicator, since the small-diameter inner cylinder is inserted into the large-diameter inner cylinder when not in use, the length of the pushing member corresponding to the inserted small-diameter inner cylinder can be shortened. .
JP-A-62-14852

  However, even if it is a compact type, a high absorbency is still required as a sanitary tampon. On the other hand, in the case of a compact type applicator, it is necessary to make it compact when carried. In addition, the length of the female vagina is generally 80-100 mm, and the female vagina has a sphincter at a portion of about 20-40 mm from the vagina entrance of the labia, so when the outer tube is inserted, After the insertion to the depth of 50 mm, it is necessary to release the absorbing member into the body, and the length of the insertion portion of the outer cylinder is dimensionally restricted in consideration of the human body structure. For this reason, in order for the sanitary tampon to obtain further absorption power, it is necessary to fill more absorbent members in the current limited space.

In this regard, when only the fibers constituting the absorbent member are simply increased, the apparent amount of absorption increases when the density of the filled fiber is 0.5 g / m ³ or more. However, according to the Syngina absorption evaluation method, which is an EDANA standard. As a result, the product weight also increases, and the absorption amount tends not to increase in proportion to the increased fiber amount. In addition, when inserting an applicator as another problem, in the conventional tampon with an applicator, a gap is formed between the absorbent member and the inner cylinder when inserted into the vagina, and menstrual blood flows through the inside of the cavity of the inner cylinder. There was also a risk of menstrual blood leaking from the extruded end of the inner cylinder. In such a case, menstrual blood is soiled in the closed toilet space, which causes a great deal of pain to the user.

  The present invention has been made paying attention to such a conventional problem, and the purpose thereof is high absorption efficiency even with a tampon with a compact applicator, and body fluid is leaked in the applicator. It is to provide a tampon with an applicator that does not occur.

  In order to solve the above problems, the present inventor has made the absorbent member accommodated not only in the outer cylinder but also in the inner cylinder in the tampon with a compact applicator. Specifically, the shape of the compression member after compression molding stored inside the applicator is such that the rear part is elongated, and the minimum diameter of the inner cylinder in which at least a part of the elongated absorption member overlaps a plurality The structure is confined in the cylinder. More specifically, the present invention provides the following.

  (1) a sanitary tampon provided with a compression-molded liquid-absorbing absorbent member and a take-out cord, an outer cylinder that houses at least a part of the absorbent member, and a sanitary tampon that is connected in use from the outer cylinder A sanitary tampon with an applicator comprising two double annular inner cylinders that push into the vagina, wherein the absorbent member is substantially cylindrical with a large-diameter absorbent member and a small-diameter absorbent member A sanitary tampon with an applicator, wherein the small diameter absorbing member is housed in the innermost part of the double annular inner cylinder when not in use.

  According to the invention of (1), the applicator is of a compact type, and the inner cylinder which is an extrusion member for extruding the absorbing member in the outer cylinder is in a double ring state in the portable state. And a part of absorption member can also be stored now in the space in this inner cylinder. Therefore, the storage volume of the absorbent member as a whole can be expanded as compared with the conventional one in which the absorbent member is accommodated only in the outer cylinder. In addition, when the fiber amount is the same as that of the conventional one, the apparent density of the compressed fiber can be lowered. In this case, the amount of absorption by the Syngyna evaluation method, which is an EDANA standard, can be increased.

  And even if the absorption member at the time of non-molding is the same size as before, the absorption member after compression molding can be made longer by the space in the inner cylinder. For this reason, the dimension of the absorption member for inserting into the vagina can be lengthened, and the range in which the absorption member contacts the female vagina wall surface can be lengthened. Conversely, if the dimensions of the absorbent member are the same as those of the conventional example, the dimension of the absorbent member housed in the outer cylinder can be shortened by the amount of the absorbent member in the inner cylinder. For this reason, it becomes possible to increase the possibility of shortening the length of the applicator when carried.

  Furthermore, since the diameter of the rear part is smaller than the front part inserted into the back part of the vagina, the degree of vagina expansion at the time of insertion can be reduced, and the resistance to contact the vagina wall can be kept low. In addition, since a substantial rigidity feeling can be reduced in the small-diameter absorbing member, that is, in the rear part of the absorbing member, it is possible to reduce the presence and discomfort in the vagina, particularly in the vicinity of the vaginal opening. Also, especially when the amount of menstrual blood is large, even if bodily fluid enters the applicator from the petal during insertion due to the presence of an absorbing member inside the inner cylinder, menstrual blood that flows out from the end of the inner cylinder on the pushing side Such an absorbing member can absorb. For this reason, the finger which pushes the inner cylinder which is an extrusion member does not get dirty with menstrual blood.

  (2) The sanitary tampon with applicator according to (1), wherein the diameter of the small-diameter absorbing member is 4 mm or more and less than 10 mm.

  According to the invention of (2), the diameter dimension of the small diameter absorbing member is as described above. For this reason, it becomes smaller than about 5 to 12 mm which is the inner diameter dimension of the inside of a general compact type double ring inner cylinder, and is surely accommodated inside the inner cylinder. That is, when the diameter of the applicator is about 10 to 17 mm and the diameter of the handle of the applicator is 8 to 15 mm, the diameter of the stored inner cylinder is smaller than this. Thus, it is preferably 4 mm or more and less than 10 mm.

  (3) The absorption member according to (1) or (2), wherein at least a part of the surface of the absorption member is covered with a hygroscopic material, and the small diameter absorption member is composed of the hygroscopic material. Sanitary tampon with applicator.

  According to the invention of (3), the small-diameter absorbing member is composed of only the surface material, not the absorbing member. For this reason, rigidity etc. can be made remarkably low compared with a large diameter absorption member.

  (4) The absorbent member is a substantially vertically long shape having a longitudinal direction and a lateral direction before compression molding, and the longitudinal direction is longer than the lateral dimension of the central portion in the longitudinal direction. The application according to any one of (1) to (3), wherein the dimension in the short direction of the portion near one end in the direction is small, and the small diameter absorbing member is formed in a portion where the dimension in the short direction is small A sanitary tampon with a head.

  According to the invention of (4), in the absorbent member after compression, at least a part of the shape of the absorbent member before compression molding is narrow so that the small-diameter absorbent member is suitably and easily formed. ing. That is, the presence or discomfort in the vagina, particularly in the rear part, is reduced compared to the central part in such a part.

  (5) The absorption member includes the large-diameter absorption member and the small-diameter absorption member by being compression-molded with a split compression mold having a step on a surface in contact with the object to be compressed (1) to (4 ) A sanitary tampon with an applicator according to any one of the above.

  According to the invention of (5), a large-diameter absorbent member and a small-diameter absorbent member can be molded at a time from a series of absorbent members through a compression process. For this reason, there is no need to join absorbent members having different diameters, and an optimum absorbent member for a compact applicator can be easily molded.

  (6) The split compression mold forms a large cavity part having a diameter of 10 mm to 17 mm and a length of 30 mm or more and a small cavity part having a diameter of 4 mm to 10 mm at the time of compression (5). Sanitary tampon with applicator as described.

  According to the invention of (6), the divided compression mold forms the two cavities having the above dimensions at the time of compression (when the divided molds are integrated). For this reason, the absorption member which is a compression target object is shape | molded by the shape according to the said cavity.

  (7) a sanitary tampon provided with an absorbent member having a liquid-absorbing fiber that has been compression-molded and a take-out cord member; an outer cylinder that houses at least a part of the absorbent member; An applicator having two double annular inner cylinders pushed out from the outer cylinder into the vagina, and a sanitary tampon with an applicator, wherein the absorbing member is housed in the outer cylinder from one end to the other end A sanitary tampon with an applicator, which gradually becomes thinner toward the portion, and is housed inside the double annular inner cylinder when the vicinity of the other end of the absorbent member is not used.

  According to the present invention, the amount of absorbed fibers can be increased as compared with the sanitary tampon described in (1) to (6). In addition, the contact rate is increased during insertion (use), and a sense of incongruity can be reduced because there is no step in the shape. When the amount of menstrual blood is small, the lubrication effect due to menstrual blood is reduced, and the contact resistance force of the sanitary tampon to the inside of the vaginal opening is increased, which causes pain when the sanitary tampon is withdrawn. Since it gradually becomes thinner in the direction of withdrawal, it is easy to withdraw even when the amount of menstrual blood is small.

  (8) a sanitary tampon provided with an absorbent member having a liquid-absorbing fiber that has been compression-molded and a take-out cord member; an outer cylinder that houses at least a part of the absorbent member; A sanitary tampon with an applicator, comprising an applicator comprising two annular inner tubes that are pushed out of the outer tube into the vagina, wherein the absorbent member is gradually tapered toward both ends, A sanitary tampon with an applicator that is housed inside the double annular inner cylinder when the vicinity of the other end of the absorbent member is unused.

  According to the invention of (8), since the end portion to be inserted into the vaginal opening is also thin, the insertion operation is easy while having the function of the tampon described in (7).

  (9) The sanitary tampon with an applicator according to any one of claims 1 to 8, wherein the applicator has a diameter of the double annular inner cylinder of 4 mm to 11 mm.

  According to the present invention, the dimension of the inner cylinder of the applicator is within a predetermined range. Here, the sanitary tampon accommodated in the applicator has a diameter that fits within the diameter of the applicator. However, if the applicator is too small, the sanitary tampon that is accommodated has a small diameter. It becomes difficult, and the menstrual blood absorption effect becomes difficult. On the other hand, if the diameter of the applicator is too large, and the diameter of the sanitary tampon accommodated accordingly increases, contact in the vagina increases in the inserted state, and it is easy to give a sense of incongruity. In this regard, when the applicator has the above-described diameter, it can be a preferable applicator for storing a sanitary tampon having a suitable size when worn.

  As described above, according to the present invention, the absorbent member is accommodated not only in the outer cylinder but also in the inner cylinder, so that the storage volume of the entire absorbent member can be expanded, and the menstruation with an applicator having enhanced absorption capacity. Tampon can be used. Moreover, compared with the conventional manufacturing method, when it is set as the same fiber amount, an absorption amount can also be raised rather than the past. Furthermore, since the absorption member after compression molding can be lengthened by the amount of space in the inner cylinder, the contact area between the female vagina wall surface and the absorption member can be expanded, and leakage of body fluid can also be reduced. It becomes. In addition, it is possible to prevent the leakage inside the applicator that occurs when the applicator is inserted into the body. Furthermore, since the small-diameter absorbent member has a small size (diameter) at the time of molding, it can reduce the degree of vagina stretch at the time of insertion, and the wearing feeling can also be made suitable.

<Embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

≪Basic structure of sanitary tampon≫
FIG. 1 is a perspective view showing a sanitary tampon according to the present embodiment, FIG. 2 is a schematic view of the sanitary tampon, and FIG. 3 is a diagram for explaining the shape of an absorbent member before compression molding, FIG. 4 is a diagram showing the compression process, and FIG. 5 is a diagram for explaining the compression molding process from the top.

  As shown in FIG. 1, the sanitary tampon 1 of the present embodiment includes an absorbent member 2 and a take-out cord 3. Specifically, as shown in FIG. 2, the absorbing member 2 includes a bullet-shaped large-diameter absorbing member 21 having an end portion on the insertion direction side and a substantially cylindrical small-diameter absorbing member 22 having an end portion on the drawing direction side. It consists of. The take-out cord 3 extends from the end 22 a of the small diameter absorbing member 22. Such an absorbing member 2 preferably has a shape that becomes thinner in accordance with the rear portion in the take-out direction before being compression-molded. This is because the small-diameter absorbing member 22 is accommodated in the inner cylinder as will be described later, so that the possibility of insertion into the space inside the inner cylinder is taken into account, and after use (after menstrual blood absorption) ) Is also taken into consideration. Such shapes include, for example, the arrow feather type shown in FIG. 3 (1), the concave-convex shape shown in FIG. 3 (2), the inverted trapezoidal type shown in FIG. 3 (3), and the ellipse shown in FIG. 3 (4). Examples of the shape include an inverted triangle shown in FIG.

[Compression molding method of absorbent member]
When molding the absorbing member as described above, it is compressed from the left and right sides into a cylindrical shape with a semi-circular metal press die that is adjusted in temperature, but in this embodiment At this time, in order to make the diameter of the rear part smaller than that of the front part, as shown in FIG. 4, the rear part is pressed by a split mold 71 which is a molding mold having a small diameter. The dimensions of the mold at this time are preferably a cylindrical shape having a diameter of 10 to 17 mm in the front portion and a length of 30 mm or more and a diameter of 4 to 10 mm in the rear portion as described above. .

  Then, in order to round the front-end | tip of the large diameter absorption member 21, it presses in the longitudinal direction of a cylinder with the plunger 72, as shown in FIG. At this time, the front tip side is a semicircular recess, and the rear protrusion has a cylindrical shape that is recessed in the longitudinal direction with a center diameter of 4 to 10 mm and a length of 0 to 25 mm. By this processing, as shown in FIG. 2, the diameter is thick from the front part to the center part, and the large-diameter absorbing member 21 is formed in this part, and then the diameter is narrowed from the rear to the rear, and the small-diameter absorbing member 22 is formed. .

  The take-out code is not sandwiched between molds. Specifically, a through hole for passing a cord is provided in advance in the mold, and the cord is passed through the through hole by suction by air suction.

  This compression process will be described more specifically. In addition, it is preferable that there exists a preheating process before a compression process. For example, there is a method of moving in a temperature-controlled pipe line.

  In the compression step, as shown in FIG. 5A, the split mold 71 slowly compresses the absorbent member from the left and right (compresses from the lateral direction of the absorbent member). The take-out cord 3 is sucked by air suction provided on the plunger 73 and passed through the through hole 74. Here, the plunger 73 serves as a suction tube for pulling the take-out cord 3 uniformly, but a suction tube is installed in order to suck the take-out cord 3 together with air while sucking air. . Next, as shown in FIG. 5 (2), the plunger 72 compresses from the front. At this time, the take-out cord 3 remains sucked by air suction. Then, as shown in FIG. 5 (3), a sanitary tampon including a large-diameter absorbing member 21 having a rounded tip and a small-diameter absorbing member 22 is formed.

  The cross section along the line XX in FIG. 5 (2) may not be particularly processed on the inner surface as shown in FIG. 6 (a), but the cross-shaped projection without the center as shown in FIG. 6 (b). Alternatively, a plurality of mountain-shaped protrusions may be provided as shown in FIG. By providing such a protrusion, it is possible to stabilize the molding of the small-diameter absorbing member 22 that is compressed only from the lateral direction.

[Other compression processes]
As shown in FIG. 7, not only left and right compression by the split mold 71 but also compression from the front and rear by the plunger 72 and the plunger 73 having different shapes, that is, by using a split mold in four directions, 4 Can be compressed from the direction. Thereby, a small diameter absorption member can be compressed to a longitudinal direction. The take-out cord 3 passes through the through hole 74 of the plunger 76 by air suction.

〔Size〕
The size of the absorbent member is preferably 30 to 70 mm in width and 40 to 100 mm in the longitudinal direction when uncompressed, and more preferably 30 to 50 mm in the width direction and 50 to 90 mm in the longitudinal direction. .

  After compression molding, it is preferable that the large-diameter absorbing member 21 has a diameter of 10 mm to 17 mm and a length of 30 mm to 55 mm. The small diameter absorbing member 22 has a size that fits within a first inner diameter, which will be described later, and preferably has a diameter of 4 mm to less than 10 mm and a length of about 5 mm to 20 mm.

≪Overall configuration of sanitary tampon with applicator≫
FIG. 8 is a longitudinal sectional view showing a state of the sanitary tampon with an insertion tool (applicator) when not in use (portable), and FIG. 9 is a longitudinal sectional view showing a state of being used (when extended). is there.

  As shown in FIG. 8, the sanitary tampon 1 with an applicator according to this embodiment is further included in the sanitary tampon 1, the outer cylinder 41, the first inner cylinder 42, and the first inner cylinder 42. And an applicator 4 having a second inner cylinder 43. The outer cylinder 41 has a cylindrical shape with a circular cross section, and a cavity is formed inside. Moreover, the 1st inner cylinder 42 and the 2nd inner cylinder 43 are also elongate cylindrical shapes, and the inside is a cavity. An opening 45 having a petal-like (radial) shape that is expanded when the sanitary tampon 1 is pushed out is provided at the tip of the outer cylinder 41. As shown in FIG. 8, when not in use, the second inner cylinder 43 is accommodated in the first inner cylinder 42, and the first inner cylinder 42 is further accommodated in a part of the outer cylinder 41. The large-diameter absorbing member 21 is accommodated in the outer cylinder 41, and the small-diameter absorbing member 22 is accommodated in the second inner cylinder 43 accommodated in the first inner cylinder 42. The take-out cord 3 extends from the inside of the second inner cylinder 43 to the outside of the applicator 4.

  During use (extension), as shown in FIG. 9, the second inner cylinder 43 is pulled out from the first inner cylinder 42, and both are engaged (fitted) so that one long extrusion is performed. It becomes a member. In this extended state, the large-diameter absorbing member 21 is included in the outer cylinder 41 and the small-diameter absorbing member 22 is included in the first inner cylinder 42. Then, by pushing the pushing member forward, the absorbing member 2 is pushed into the vagina from the opening 45 provided at the tip of the outer cylinder 41.

  The applicator 4 has a maximum inner diameter R1 of the outer cylinder 41 of 17 mm, a longitudinal length L1 of 48 mm, an inner diameter R2 of the second inner cylinder 43 of 7 mm, and a longitudinal length L2 of 30 mm. In the method of assembling the applicator, the petals of the opening 45 at the tip of the outer cylinder 41 are open before being thermoformed and rounded. Therefore, first, the first inner cylinder 42 and the second inner cylinder 43 are inserted from the petal side, and then the absorbing member 2 is inserted from the petal side of the outer cylinder 41. At the same time, the take-out cord 3 passes through the second inner cylinder 43. Thereafter, the petal is processed into a round shape by thermoforming to complete the sanitary tampon 1 with an applicator.

≪Component materials≫
[Sanitary tampon]
The absorbent member 2 absorbs and retains menstrual blood. For example, a nonwoven fabric made of polyester fibers on the surface of a fiber lump mainly composed of water-absorbing rayon or cotton to prevent falling fibers is used as a surface material. The covered one can be used. In the above embodiment, the fiber mass using a rayon fiber laminate having a basis weight of 880 g / m ^2, the surface material using ones having a basis weight of 12 g / m ² by dry spunbonded preparation of polyester resins. Other materials for the surface material include non-woven fabrics such as rayon / cotton and other hydrophilic fibers and synthetic fibers produced by the spunlace method (nonwoven fabric by high-pressure hydroentanglement) and polyethylene, polypropylene, and polyester resin fibers by the through-air method. It is also possible to use a perforated film or a perforated net.

  The take-out cord 3 is used to pull out the absorbent member 2 of the used sanitary tampon 1 from the body. Therefore, any structure that can extract the absorbing member 2 may be used. As a general example, a structure in which the absorbing member 2 and the take-out cord 3 are sewn with a sewing thread or a ring formed by the take-out cord 3 and the absorbent member therebetween. And a structure in which a hole is formed in the absorbent member 2 and a take-out cord 3 is connected thereto.

  As for the take-out cord 3, a spun yarn obtained by twisting cotton short fibers by a general method, a composite spun yarn obtained by twisting cotton and polyester short fibers, and a blend spun yarn obtained by blending cotton and polyester are used. . In the present embodiment, a composite spun yarn comprising cotton and polyester yarn is used.

  As the sewing thread used when the take-out cord 3 and the large-diameter absorbing member 21 are joined by a double ring stitch with a sewing machine, generally a spun yarn obtained by twisting cotton short fibers or cotton and polyester short fibers is used. A twisted composite spun yarn, a blend spun yarn blended with cotton and polyester, and the like are used. A cotton spun thread was used as the sewing thread of this embodiment.

[applicator]
The outer cylinder 41 can be manufactured by injection molding using a thermoplastic resin such as a melted polyethylene resin. The outer cylinder 41 is formed with a petal-like opening 45 that expands when the sanitary tampon 1 is pushed out at the distal end portion. It is required to improve the slipperiness for preventing and satisfying the smooth insertion of the tampon into the vagina. For this reason, the opening 45 requires a bending movable function, and generally a low density polyethylene resin is used so that such a function can be exhibited.

  For the first inner cylinder 42 and the second inner cylinder 43, polyethylene resin, polypropylene resin, or the like can be used, and these can be melted and manufactured by injection molding. Since the functional purpose of the inner cylinder is to push the absorbing member 2 into the body, a material whose hardness is somewhat higher is used. For this reason, not only polyethylene but also polypropylene or polyester resin can be used.

  In order to enhance the aesthetic appearance, mica, titanium oxide, pigment, etc. can be added to both the outer cylinder and the inner cylinder.

  Next, specific examples of the present invention will be described. In addition, about the thing which is common in Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted or simplified.

<Example 1>
First, Example 1 will be described. FIG. 10 is a sanitary tampon provided with a compression molded absorbent member, FIG. 11 is a perspective view of a sanitary tampon provided with an uncompressed molded absorbent member, and FIG. 12 illustrates dimensions of the uncompressed molded absorbent member. FIG. 13 is a view for explaining the compression process of the absorbent member, and FIG. 14 is a view showing a sanitary tampon with an applicator.

As shown in FIG. 10, the sanitary tampon 1 according to this embodiment includes an absorbing member 2 including a large-diameter absorbing member 21 and a small-diameter absorbing member 22 and a take-out cord 3. The dimension of the large diameter absorbing member 21 is 45 mm in the longitudinal direction X1 and the dimension Y1 (diameter) in the lateral direction is 13.4 mm, and the dimension of the small diameter absorbing member 22 is 20 mm in the longitudinal direction X2 and the lateral direction. The dimension Y2 (diameter) is 6 mm. Before the compression molding of the absorbent member 2, an arrow-shaped absorbent member 20 as shown in FIG. 11 and a take-out cord 3 in which the absorbent member 20 is sewn with a sewing thread are provided. In this absorbent member 20, a fiber laminate composed of rayon fibers having a basis weight of 880 g / m ² and a width of 50 mm is wound with a spunbonded nonwoven fabric having a basis weight of 12 g / m ^{2 and a} width of 130 mm made of a polyester resin, and the front and back are cut into an arrow feather shape. It is a thing. The take-out cord 3 is sewn with upper and lower threads using a double chain stitch sewing machine and joined to the absorbent member. As shown in FIG. 12, the dimension of the absorbing member 20 is 50 mm in the lateral direction (width direction), 20 mm in W2, 10 mm in W3, and 20 mm in W4. In addition, the longitudinal dimension M1 is 45 mm, M2 is 20 mm, M3 is 20 mm, and M4 is 65 mm, so that the rear end from which the take-out cord 3 extends is narrowed. Other numerical values are as shown in the following table. In this table, based on a commercially available tampon (charm compact tampon super) applicator, the space of the large-diameter absorbent member is 6343 mm ³ , and the space of the small-diameter absorbent member is 565 mm ^3. The apparent density is calculated by dividing the weight by the amount of space. The same applies to other embodiments of the present invention.

  As shown in FIG. 13, the absorbent member 20 is compressed in the width direction by a split mold 71 having a large cavity having a depth P1 of 45 mm and an inner diameter Q1 of 13.4 mm and a small cavity having a depth P2 of 20 mm and an inner diameter Q2 of 6 mm. Further, the plunger 72 compresses from the front to the rear. Thereby, it can be set as the sanitary tampon 1 provided with the size and shape as described above.

  When the absorbing member 2 is included in the applicator, the large-diameter absorbing member 21 is accommodated in the outer cylinder 41 and the small-diameter absorbing member 22 is accommodated in the second inner cylinder 43 as shown in FIG. It becomes.

<Comparative example>
Next, as a comparative example, a sanitary tampon provided with an absorbent member in which a small-diameter absorbent member is not formed will be described. FIG. 14 is a side view of a sanitary tampon of a comparative example, FIG. 15 is a diagram showing a sanitary tampon in which the absorbent member is in an uncompressed molded state, and FIG. 16 is a diagram for explaining the dimensions of the uncompressed molded absorbent member. FIG. 17 is a view showing a state of compression molding, and FIGS. 18 and 19 are views showing a sanitary tampon with an applicator.

The sanitary tampon 100 according to the comparative example includes a bullet-shaped absorbing member 101 as shown in FIG. 14, and the dimensions are 45 mm in the longitudinal direction X ′ and 13.4 mm in the lateral direction Y ′. It is. The uncompressed molded absorbent member 102 has an arrow shape as shown in FIG. Specifically, as shown in FIG. 16, in the width direction, W′1 is 50 mm, W′2 and W′4 are 20 mm, and W′3 is 10 mm. The dimensions in the direction are 50 mm for M′1, 15 mm for M′2 and M3 ′, and the total sum is 5 mm shorter than that of Example 1. In this absorbent member 102, a fiber laminate composed of rayon fibers having a basis weight of 880 g / m ² and a width of 50 mm is wound with a spunbonded nonwoven fabric having a basis weight of 12 g / m ^{2 and a} width of 130 mm made of polyester resin, and the front and rear are cut to form an arrow. This point is the same as the first embodiment. The take-out cord 103 is joined to the absorbing member 102 by the same method as in the first embodiment. The other numerical values in this case are as shown in the following table.

  The above-described absorbing member 102 is compression-molded, but the shape of the mold for compression is different from that of the first embodiment. Specifically, as shown in FIG. 17, a flat divided mold 107 is used, and the flat mold 107 is compressed in the width direction. Further, in order to create a round shape at the tip of the absorbent member, a compression press is performed by the plunger 109 from the rear end side of the absorbent member so as to contact the plunger 108 having a hemispherical depression. Specifically, a large number of pipes are joined to a round drum, and a plunger 108 having a depression is arranged at the tip of all the pipes. The plunger 108 may be a fixed type as described above or a movable type. The absorbing member 102 is pushed into each pipe line by one plunger 109 so that the distal end portion of the absorbing member 102 is in contact with the plunger 108, and is then thermoformed by applying a temperature. From such a molding process, unlike the first embodiment, the absorbing member 102 is compressed from both ends. As a result, a bullet-like absorbing member 101 having a hemispherical surface on one side is formed. As described above, in the comparative example, the absorbing member 102 is compressed so that the whole is crushed in the longitudinal direction from the rear to the front, and in Example 1, only the large-diameter absorbing member 21 is compressed in the longitudinal direction. The small diameter absorbing member 22 is not compressed in the longitudinal direction. Because of the difference in the compression process, the length dimension before the compression molding is only 5 mm different from that of the first embodiment, but after the compression molding, the total length of the absorbent member 2 in the first embodiment is 65 mm. The total length of the member 101 is 20 mm, and the length in the longitudinal direction is different by 20 mm. That is, the compression rigidity is remarkably different between the two.

  When the sanitary tampon 10 of the comparative example is housed in the applicator, the absorbing member 101 is included only in the outer cylinder portion like the sanitary tampon 110 with an applicator shown in FIG. This means that only the take-out cord 103 is accommodated, and the absorption member 101 is accommodated only in the outer cylinder in the extended state shown in FIG.

<Example 2>
Next, Example 2 will be described. 20 is a perspective view showing a sanitary tampon provided with an uncompressed molded absorbent member, FIG. 21 is a diagram showing dimensions of the absorbent member during uncompressed molding, and FIG. 22 is a diagram showing a compression process. FIG. 23 is a side view showing the sanitary tampon after compression molding.

As shown in FIG. 20, the sanitary tampon 1 according to the present embodiment includes an absorbing member 20 having a concave shape at one end and a convex shape at the other end, and a take-out cord 3 before compression molding. I have. The absorbent member 20 is formed by winding a fiber assembly made of rayon fibers having a basis weight of 880 g / m ^{2 and a} width of 50 mm with a spunbonded nonwoven fabric having a basis weight of 12 g / m ^{2 and a} width of 130 mm made of polyester resin, and cutting the front and back to a length of 90 mm. . The take-out cord 3 is sewn with upper and lower threads using a double chain stitch sewing machine and joined to the absorbing member 20. As shown in FIG. 21, this absorbent member 20 has dimensions in the short direction (width direction) of W1 of 50 mm, W2 of 19 mm, W3 of 120 mm, and W4 of 19 mm. Further, the dimensions in the longitudinal direction are such that M1 is 25 mm, M2 is 40 mm, M3 is 25 mm, and M4 is 65 mm.

As shown in FIG. 22, the absorbing member 20 is pressed in the width direction with a split die 71 as shown in FIG. 22 so that the large diameter absorbing member 21 has a diameter of about 13.4 mm and the small diameter absorbing member 22 has a diameter of about After molding to 6 mm, compression pressing is performed by a plunger 72 having a hemispherical depression from the front. Accordingly, as shown in FIG. 23, a large-diameter absorbing member 21 having a hemispherical side on one side, a longitudinal dimension X1 of 45 mm, and a lateral dimension (diameter) Y1 of 13.4 mm, and a cylindrical shape Thus, the sanitary tampon 1 having the small-diameter absorbing member 22 having the longitudinal dimension X2 of 25 mm and the lateral dimension Y2 of 6 mm can be formed. Other numerical values are as shown in the following table. In this table, the apparent density is calculated by dividing the weight by the space amount 6343 mm ³ .

<Example 3>
Next, Example 3 will be described. FIG. 24 is a perspective view showing a sanitary tampon provided with an uncompressed molded absorbent member, FIG. 25 is a diagram showing dimensions of the absorbent member during uncompressed molding, and FIG. 26 is a diagram showing a compression process. FIG. 27 is a side view showing the sanitary tampon after compression molding.

The sanitary tampon 1 according to the present embodiment includes a rectangular absorbent member 20 and a take-out cord 3 as shown in FIG. 24 before compression molding. This absorbent member 20 cuts a fiber aggregate having a basis weight of 880 g / m ^{2 made} of rayon fiber into a fiber laminate having a width of 50 mm and a length of 60 mm. It is wound with a 35 g / m ² spunlace nonwoven fabric having a width of 130 mm and a length of 80 mm. The spunlace nonwoven fabric employed in this example is a nonwoven fabric in which 1.3 Dtex polyester fiber and 1.4 Dtex rayon fiber are configured in a ratio of 50:50 and the fibers are entangled with water. Then, the take-out cord 3 is sewn with upper and lower threads using a double ring sewing machine and joined to the uncompressed molded absorbent member 20.

なお、上述の場合には本実施形態の未圧縮成型時の生理用タンポン１としては繊維集合体２３の形状は図２８に示すようになるが、図２９に示すように繊維集合体２３の形状を矢羽状としてもよい。 As shown in FIG. 25, the dimensions of the absorbent member 20 are 50 mm for W1 and 20 mm for M3 and 60 mm for M4 in the longitudinal direction. As shown in FIG. 26, the absorbent member 20 is compressed in the width direction with a split die 71 having a major cavity Q1 of 13.4 mm and a minor cavity Q2 of 4 mm, and further forward by a plunger 72. 27, a compression press is applied to a length of 45 mm which is P1, and as shown in FIG. 27, the length X1 of the large-diameter absorbent member 21 is 45 mm, the dimension (diameter) Y1 in the short direction is 13.4 mm, and the small diameter The sanitary tampon 1 in which the longitudinal dimension X2 of the absorbent member 22 is 20 mm and the lateral dimension (diameter) Y2 is 4 mm can be formed. Other numerical values are as shown in the table below.

In the above-described case, the shape of the fiber assembly 23 is as shown in FIG. 28 as the sanitary tampon 1 at the time of uncompressed molding of this embodiment, but the shape of the fiber assembly 23 is as shown in FIG. It is good also as arrow feather shape.

<Example 4>
Next, Example 4 will be described. FIG. 30 is a perspective view showing a sanitary tampon provided with an uncompressed molded absorbent member, and FIG. 31 is a diagram showing dimensions of the absorbent member during uncompressed molding.

  As shown in FIG. 30, the sanitary tampon 1 according to the present embodiment includes an absorbent member 20 having a trapezoidal concave portion at the front and a trapezoidal convex portion at the rear, as shown in FIG. As shown in FIG. 31, the size of the absorbing member 20 is 40 mm for W1, 15 mm for W2, 20 mm for W3, 10 mm for W4, 15 mm for W5, and 20 mm for W6. M1 is 40 mm, M2 and M3 are 25 mm, and M4 is 65 mm. By compressing such an absorbent member in the width direction with a molding die similar to that in Example 2, and further compressing it with a plunger from the tip, a sanitary tampon provided with the same absorbent member 2 as in Example 2 is formed. can do. Other numerical values are as shown in the following table.

<Example 5>
Next, Example 5 will be described. FIG. 32 is a perspective view showing a sanitary tampon provided with an uncompressed molded absorbent member, and FIG. 33 is a diagram showing dimensions of the absorbent member during uncompressed molding.

  As shown in FIG. 32, the sanitary tampon 1 according to the present embodiment has a cut in the absorbent member 20 at the central portion in the longitudinal direction before compression molding. As shown in FIG. 33, the dimensions of the absorbing member 20 are 50 mm for W1, 15 mm for W2, 20 mm for W3, 10 mm for W4, 15 mm for W5, and 20 mm for W6. The longitudinal dimensions are 40 mm for M1, 25 mm for M2, 25 mm for M3, and 65 mm for M4. And the compression member 2 similar to Example 2 can be formed by compressing in the width direction similarly to Example 2, and also compressing with a plunger from the front-end | tip.

  In the embodiment described above, the diameters of the large-diameter absorbing members are all 13.4 mm. However, this size is appropriately changed according to the inner diameter of the applicator to be inserted.

<Other examples of sanitary tampon after compression molding>
The sanitary tampon after compression molding may have a shape that gradually decreases toward the rear end as shown in FIG. In addition, as shown in FIG. 35, a hydrophilic fiber net may be provided at the joint between the take-out cord 3 and the absorbent member. Furthermore, as shown in FIG. 36, both ends may be made narrower.

  As is clear from the above-described embodiment, according to the present invention, the sanitary tampon with a compact type applicator is provided with an absorbing member that is housed in both the outer cylinder and the inner cylinder by a simple method. I can. For this reason, the sanitary tampon with an applicator provided with the absorption member having high absorption efficiency can be provided without increasing the rigidity of the absorbent member.

It is a perspective view of the sanitary tampon of the present invention. It is a side view of the sanitary tampon of the present invention. It is a figure which shows the shape pattern of the absorption member before the compression molding of this invention. It is a figure for demonstrating the compression process of the absorption member of this invention entirely. It is a figure for demonstrating the flow of the compression process of the absorption member of this invention. It is sectional drawing of the sanitary tampon with an applicator of this invention of FIG. 5 (2) (when not in use). It is a figure for demonstrating generally the other example of the compression process of an absorption member. It is sectional drawing of the sanitary tampon with an applicator of the present invention (when not used). It is sectional drawing of the sanitary tampon with an applicator of this invention (at the time of use). 1 is a side view of a sanitary tampon of Example 1. FIG. It is a perspective view of the sanitary tampon of Example 1 provided with an uncompressed molding absorption member. It is a figure for demonstrating the dimension of the uncompressed molding absorption member. 3 is a diagram illustrating a compression process of Example 1. FIG. It is a side view of the sanitary tampon of a comparative example. It is a perspective view of the sanitary tampon of the comparative example provided with the uncompressed molding absorption member. It is a figure for demonstrating the dimension of the uncompressed molded absorption member of a comparative example. It is a figure which shows the compression process of a comparative example. It is sectional drawing of the sanitary tampon with an applicator of a comparative example (when not in use). It is sectional drawing of the sanitary tampon with an applicator of a comparative example (at the time of use). It is a perspective view of the sanitary tampon of Example 2 provided with an uncompressed molding absorption member. It is a figure for demonstrating the dimension of the uncompressed molding absorption member. 6 is a diagram illustrating a compression process of Example 2. FIG. It is a side view which shows the sanitary tampon after the compression molding of Example 2. It is a perspective view of the sanitary tampon of Example 3 provided with the uncompressed molded absorption member. It is a figure for demonstrating the dimension of the uncompressed molding absorption member. 6 is a diagram illustrating a compression process of Example 3. FIG. 6 is a side view showing a sanitary tampon after compression molding of Example 3. FIG. It is a figure which shows the sanitary tampon of Example 3 provided with the uncompressed molded absorption member. It is a figure which shows the other example of the sanitary tampon of Example 3 provided with the uncompressed molding absorption member. It is a perspective view of the sanitary tampon of Example 4 provided with an uncompressed molding absorption member. It is a figure for demonstrating the dimension of the uncompressed molding absorption member. It is a perspective view of the sanitary tampon of Example 5 provided with an uncompressed molding absorption member. It is a figure for demonstrating the dimension of the uncompressed molding absorption member. It is a figure which shows the other shape of the sanitary tampon after compression molding. It is a figure which shows the other shape of the sanitary tampon after compression molding. It is a figure which shows the other shape of the sanitary tampon after compression molding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100 Sanitary tampon 2,101 Absorption member 3,103 Taking out cord 4 Applicator 20,102 Absorption member (uncompressed molding)
21 Large-diameter absorbing member 22 Small-diameter absorbing member 41 Outer cylinder 42 First inner cylinder 43 Second inner cylinder 45 Open hole 71 Split molds 72, 73, 108, 109 Plunger

Claims (7)

A sanitary tampon provided with a compression-molded liquid-absorbing absorbent member and a take-out cord, an outer cylinder that houses at least a part of the absorbent member, and a sanitary tampon that is connected when used to enter the vagina from the outer cylinder A sanitary tampon with an applicator comprising:
The absorbent member is a substantially cylindrical one provided with a large-diameter absorbent member and a small-diameter absorbent member,
The small diameter absorbing member is accommodated in the innermost of the inner cylinder of the double annular in when not in use,
A sanitary tampon with an applicator configured such that the length in the longitudinal direction of the small-diameter absorbing member is substantially equal to the length in the longitudinal direction of the outer inner cylinder of the two inner cylinders . Wherein the diameter of the small-diameter absorbing member state, and are 10mm or more or less 4 mm, the length of the small-diameter absorbing member, 5 mm or more 20mm or less der Ru claim 1 applicator with a sanitary tampon according. The absorbent member is for at least part of the surface is covered with hygroscopic material, said small-diameter absorbing member, with applicator according to claim 1 or 2, wherein those composed of the hygroscopic material Sanitary tampon. The compression member before compression molding has a vertically long shape having a longitudinal direction and a short side direction, and the dimension in the short side on the side where the small diameter absorbing member is formed in the longitudinal direction is the large diameter absorption. The sanitary tampon with an applicator according to any one of claims 1 to 3, wherein the sanitary tampon is smaller than a dimension in the short direction on a side where a member is formed . The sanitary tampon with an applicator according to any one of claims 1 to 4 , wherein the applicator has a diameter of the double annular inner cylinder of 4 mm or more and 11 mm or less. A method for producing a tampon with an applicator according to any one of claims 1 to 5,
Compression molded by a split compression mold having a step in the surface in contact with the compressed object, a method of manufacturing an applicator with the tampon comprising the step of forming the absorbent member with the larger diameter absorbing member and the small diameter absorption member . The split compression mold, the diameter at the time of compression is 10mm or 17mm or less, and a large cavity length of more than 30 mm, a diameter of 4mm or more 10mm or less, claims a length and a small cavity within 20 mm 6 The manufacturing method of the sanitary tampon with an applicator of description.

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