JP2000270974A - Stuffing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stuffing material having feather-like bulkiness, bulk durability, drapability, gloss, flexibility and heat retaining property. SOLUTION: This stuffing material is made of a core material 3 formed into a knit-like structure with core material fibers 1, and feather material fibers 2 knitted into the loops of the core material 3. The stuffing material also comprises a compound fiber with an S-shaped cross section having a dent section where the feather material fibers 2 are combined with two or more kinds of different thermoplastic polymers, or compound fibers with an H-shaped cross section or a compound fiber with a 9-shaped cross section having a hollow section, or a compound fiber with an 8-shaped cross section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a padding material used for futons, cushions, pillows, jackets, sleeping bags, and the like, and more particularly to feather-like bulkiness, bulk durability, drapability, and flexibility. The present invention relates to a filling material having a slimy feeling and heat retention.

[0002]

2. Description of the Related Art Conventionally, cotton, wool, feather, nylon, polyester, and the like have been used as filling materials used for futons, cushions, pillows, jackets, sleeping bags, and the like. In addition, aiming at a feather-like texture that is a high-grade product, those improved by a combination of fineness, crimping, and cross-sectional shape of the filling, and, as proposed in, for example, Japanese Patent Publication No. 52-28426,
Some fibers have a silicone resin attached to the surface of the fiber.
Further, a so-called fiber ball in which the fiber is formed into a rubber cone shape has been proposed. However, no filling material having properties such as bulkiness, bulk durability, drapability, flexibility and heat retention in a well-balanced manner has not been found so far.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a filling material having a well-balanced feather-like bulkiness, bulk durability, drapability, flexibility, sliminess and heat retention.

[0004]

The filling material of the present invention has the following structure to solve the above-mentioned problems.

[0005] That is, the core material is formed by a core material formed into a knitted structure by the core material fiber, and the bristle fiber woven into the stitches of the core material. A stuffing characterized by containing an S-shaped cross-section conjugate fiber or an H-shaped cross-section conjugate fiber having a concave portion formed by joining a polymer or a 9-shaped cross-section conjugate fiber or an 8-shaped cross-section conjugate fiber having a hollow portion. Material.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a filling material of the present invention will be described in detail with reference to embodiments shown in the drawings.

FIGS. 1, 2 and 3 are schematic views showing an example of the structure of the filling material of the present invention. In the present invention, a core material 3 formed in a stitch structure (a chain stitch structure in the example of FIG. 1) by the core material fiber 1 and a bristle fiber 2 is knitted in the stitch structure of the core material 3 in the chain stitch structure. The bristle fibers 2 are knitted in the knitting structure of the core, so that the bristle fibers 2 are hardly removed from the bristle material.

In FIG. 1, the number of the groups of the bristle fibers 2 in one stitch row of the core fibers 1 is one group in which the bristle fibers 2 have a cut shape, and in FIG. 2, the bristle fibers 2 have a cut shape. FIG. 3 shows an example of a mixture of one group in which the bristle fibers 2 exhibit a loop shape and one group in which the bristle fibers 2 exhibit a cut shape in FIG. 3, but there is no particular limitation. Three or more groups that present only a group that presents, or one group that presents a loop shape, two or more groups that present a loop shape, and three or more groups that include a group that presents a loop shape and a group that presents a cut shape A structure having bristle fibers may be used. The inclusion of these bristle fibers 2 enhances the mutual exclusion of the filling materials, and can impart feather-like bulkiness, bulk durability, drapability, and flexibility.

The length L (FIG. 3) of the core fiber 1 having the stitch structure in the longitudinal direction (the direction in which the stitches are connected) is 5 to 10 mm.
0 mm is preferred. If the length of the core material 3 in the longitudinal direction is too long, the stuffing materials are likely to be entangled with each other, and the drapability is likely to be impaired. On the other hand, if the length is too short, the amount of the core material holding the bristle material decreases, and the bristle fiber 2 and the core fiber 1 are easily separated, which is not preferable.

Next, as the bristle fiber 2, an S-shaped cross-section conjugate fiber or a H-shaped cross-section conjugate fiber having a recess formed by joining two or more different thermoplastic polymers or a 9-shaped cross-section having a hollow portion is used. It is important that a conjugate fiber or a conjugate fiber having an 8-shaped cross section is included. As a combination of two or more different thermoplastic polymers, from the viewpoint of improving the bulkiness by giving exclusivity to the single fibers constituting the hair material fibers 2, the thermal or chemical properties are different and the crimps are developed. There is no particular limitation as long as it does. From the viewpoint of mutual exclusion of single fibers, it is preferable that the number of crimps be expressed in the range of 3 to 10 ridges / 25 mm and the degree of crimp be expressed in the range of 5 to 30%.

As a combination of two or more different thermoplastic polymers constituting the composite fiber, a difference in shrinkage is exhibited by hot water or dry heat treatment, which is easy to produce the application product of the present invention,
Those which express crimps of a three-dimensional structure are preferred. As one R1 component of the thermoplastic polymer, for example, 4- or 5-
Aromatic dicarboxylic acids having a metal sulfonate group such as sodium sulfoisophthalic acid, 5-potassium sulfoisophthalic acid, and 4-sodium sulfo 2,6-naphthalenedicarboxylic acid, isophthalic acid, phthalic acid, and 2,6-naphthalenedicarboxylic acid; Polyalkylene terephthalate obtained by copolymerizing aliphatic dicarboxylic acids such as aromatic dicarboxylic acid, adipic acid and sebacic acid; polyalkylene terephthalate obtained by copolymerizing glycols such as propylene glycol, 1,4-butanediol and diethylene glycol; pentaerythritol; Polyalkylene terephthalate copolymerized with polyalkylene glycol such as polyalkylene terephthalate, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, etc. Over DOO, polyalkylene terephthalates such as oxy acid was copolymerized, such as hydroxy benzoic acid, and various polyesters. The modification ratio by these copolymer components is preferably 15 mol% or less. Among the above, a copolymer polyester having an ethylene terephthalate unit as a main constituent unit is preferably used. More preferred is a polyethylene terephthalate-based copolymerized polyester using isophthalic acid, phthalic acid, oxybenzoic acid, bisphenol A, or the like as a copolymer component.

The other thermoplastic polymer R2 is not particularly limited as long as it can impart sufficient crimp to the fiber by combination with the above thermoplastic polymer R1. In particular, it is more preferable that a latent crimp be imparted to the fiber. As the thermoplastic polymer R2 component, for example, terephthalic acid, 2,6-naphthalenedicarboxylic acid or an ester thereof as a main dicarboxylic acid component, and polyethylene terephthalate having ethylene glycol or tetramethylene glycol as a main glycol component,
Polybutylene terephthalate or polyester such as polyethylene 2,6-naphthalate can be used. Among them, ethylene terephthalate is preferably used.

The thermoplastic polymer R1 and the thermoplastic polymer R2
Is not particularly limited as long as sufficient crimp is imparted to the fiber, but a combination of polyesters is preferred.

The weight ratio R1 / R2 of the thermoplastic polymer R1 and the thermoplastic polymer R2 in the conjugate fiber is preferably 1
0/90 to 90/10, more preferably 40/60 to
60/40. When the content of either R1 or R2 is less than 10% by weight, the crimp development ability is reduced, and the hair fiber 2
Tend to reduce the effect of imparting exclusion to each other and improving bulkiness.

The composite state of the thermoplastic polymer R1 and the thermoplastic polymer R2 in the composite fiber is, for example, a side-by-side type composite having an S-shaped cross section having a concave portion as shown in FIG. 4, and a modified S having a concave portion as shown in FIG. Side-by-side type composite in shape cross section, H-side with composite concave portion as shown in FIG. 6, Side-by-side type composite in concave shape as shown in FIG.
FIG. 9 shows a side-by-side composite having a hollow section, and FIG. 9 shows a side-by-side composite having a hollow section.
A side-by-side composite with a modified 9-shaped cross section having a hollow portion as shown in FIG. 10, a side-by-side composite with an 8-shaped cross section having a hollow portion as shown in FIG. 10, or a side-by-side composite with a modified 8-shaped cross section having a hollow portion as shown in FIG. Type compounding.

In the present invention, at least the hair fibers 2
S-shaped cross-section conjugate fiber or H-shaped cross-section conjugate fiber having a recess formed by bonding two or more different thermoplastic polymers to each other, or a 9-shaped cross-section conjugate fiber or a 8-shaped cross-section conjugate fiber having a hollow portion is used. However, it is also preferable to use a mixture of two or more of the above-mentioned conjugate fibers or to mix them with other fibers other than the conjugate fibers. Other fibers include
A fiber made of a single thermoplastic polymer in an S-shaped cross section or an H-shaped cross section having a concave portion or a 9-shaped cross section or an 8-shaped cross section having a hollow portion, or a fiber having a normal circular cross section;
Fibers having 3 to 8 leaf cross sections or flat cross sections are also preferable examples.

Here, an S-shaped cross section having a concave portion (naturally, the S-shaped cross section becomes a Z-shaped cross section depending on the longitudinal direction of the fiber, but is hereinafter referred to as an S-shaped cross section) H-shaped cross-section (also referred to as H-shaped cross-section depending on the degree of flatness, including the one close to the I-shaped cross-section) has the effect of increasing the mutual exclusion between the filling materials and improving the flexibility and drape property. From this viewpoint, the ratio of the S-shaped cross section and the H-shaped cross-sectional conjugate fiber having a concave portion included in the bristle fiber is preferably 20% by weight or more.

FIGS. 4 and 6 are explanatory views showing an example of a cross section of an S-shaped or H-shaped cross-section conjugate fiber having a concave portion which is preferable as the bristle fiber of the present invention. The S-shaped or H-shaped cross-section conjugate fiber having the concave portion has a ratio a / b of a length a in the vertical direction and a length b in the horizontal direction of the S-shaped or H-shaped cross section.
Is preferably in the range of 0.2 to 4.5. When the length / width ratio a / b is less than 0.2, the flatness is increased, and the bulkiness, the durability of the bulk, and the resilience to compression may be reduced. Further, even when the length / width ratio a / b of the S-shape or H-shape cross section exceeds 4.5, the flatness is increased and the bulkiness, the durability of the bulk, and the resilience to compression may be reduced. .

Here, the vertical length a and the horizontal length b of the S-shaped cross section are, as shown in FIG.
L2, a line M perpendicular to the tangent line L1 and tangent to the S-shaped cross section
1, M2 is drawn, and the distance between the intersections of the tangent line L1 and the tangent lines M1, M2 is defined as the vertical length a, and the tangent line M1 and the tangent lines L1, L
The distance between the two intersections is defined as a horizontal length b. When the tangents L1 and L2 do not become parallel, as shown in FIG. 5, tangents L3 and L4 are drawn first, tangents M3 and M4 perpendicular to the tangent L3 and tangent to the S-shaped cross section are drawn, and tangents L3 and M3,
The distance a1 between the intersections of M4 and the distance a2 between the intersections of the tangent L4 and the tangents M3 and M4 are obtained, and the average value thereof, that is, (a1
+ A2) / 2 is the length a in the vertical direction, and the tangent M3 and the tangent L
3, the distance b1 between the intersections of L4, the tangent M4, and the tangents L3, L
The distance b2 between the intersections of No. 4 is obtained, and the average value thereof, that is, (b1 + b2) / 2 is set as the horizontal length b.

The H-shaped cross section is described in detail with reference to FIG. 6. In FIG. 6, a portion extending on the both sides of the H shape and extending vertically (hereinafter referred to as a "foot") is connected to the two legs. And a connecting portion extending in the horizontal line (left / right) direction to form an H-shaped cross section. The length a in the vertical direction is a distance between a tangent connecting the upper ends of both feet and a tangent connecting the lower ends thereof, as shown in FIG. 6, and the length b in the horizontal direction is, as shown in FIG. Refers to the distance between the tangents on the outer surfaces of both feet.
When the tangent line L1 contacting the outside surface of one foot and the tangent line L2 contacting the outside surface of the other foot are not parallel or when the lengths of both feet are different, it is determined from each intersection shown in FIG. That is, as the length of the left foot, the distance a between the horizontal line M1 contacting the upper end of the left foot and the horizontal line M2 contacting the lower end of the left foot
1 and the distance a2 between the horizontal line M3 contacting the upper end of the right foot and the horizontal line M4 contacting the lower end of the right foot is determined as the length of the right foot, and the average value (a1 + a2) / 2 is calculated as the length in the vertical direction. a. As shown in FIG. 7, tangent lines L1 and L2 contacting the outer surfaces of both feet are drawn, and an intersection O between the tangent line L1 and a horizontal line M1 contacting the upper end of the left foot, and a tangent line L1 and a horizontal line M2 contacting the lower end of the left foot are formed. The intersection P, the intersection Q between the tangent L2 and the horizontal line M3 contacting the upper end of the right foot, and the intersection R of the tangent L2 and the horizontal line M4 contacting the lower end of the left foot are determined. Next, the distance between the perpendiculars passing through the intersection O and the intersection Q is represented by b1.
And the distance between perpendiculars passing through the intersection P and the intersection R is determined as b2, and the average value (b1 + b2) / 2 thereof is defined as the length b in the horizontal direction.

In the present invention, a 9-shaped cross section having a hollow portion as a fiber used for the bristle fiber 2 (naturally, the 9-shaped cross section is a 6-shaped cross section depending on the viewing direction in the longitudinal direction of the fiber. Or an inverted 9-shaped or inverted 6-shaped cross section, hereinafter referred to as a 9-shaped cross section). A case where a conjugate fiber or an 8-shaped cross-sectional conjugate fiber having a hollow portion is used will be described.

FIGS. 8 and 10 show the hair fiber 2 of the present invention.
It is explanatory drawing which shows an example of the cross section of the 9-shaped or 8-shaped cross-section conjugate fiber which has a hollow part used for (1). This 9-shaped or 8-shaped cross-section conjugate fiber has the effect of improving the heat retention property by the hollow portion and the effect of increasing the mutual exclusivity of the filling material to improve the bulkiness, and at the same time, improving the flexibility and drapability. is there. From this viewpoint, the ratio of the 9-shaped or 8-shaped cross-section conjugate fiber used for the hair fiber is 2%.
0% by weight or more is preferred.

In the present invention, when a 9-shaped or 8-shaped cross-section composite fiber having a hollow portion in the bristle fiber 2 is used, the vertical length a of the 9-shaped or 8-shaped cross section and the horizontal The ratio a / b to the length b is preferably in the range of 0.2 to 4.5. When the length / width ratio a / b is less than 0.2, the flatness is increased, and the bulkiness, the durability of the bulk, and the resilience to compression may be reduced. The vertical / horizontal length ratio a / b of the 9-shaped or 8-shaped cross section is 4.5.
Even if it exceeds, the flatness increases, and the bulkiness, the durability of the bulk, and the resilience to compression may decrease.

Here, the vertical length a and the horizontal length b of the 9-shaped or 8-shaped cross section are shown in FIGS.
As shown by, first, tangent lines L1 and L2 are drawn, and tangent line M perpendicular to tangent line L1 and tangent to a 9-shaped or 8-shaped section
1, M2 is drawn, and the distance between the intersections of the tangent line L1 and the tangent lines M1, M2 is defined as the vertical length a, and the tangent line M1 and the tangent lines L1, L
The distance between the two intersections is defined as a horizontal length b. If the tangents L1 and L2 are not parallel, first draw the tangents L3 and L4 and draw the lines M3 and M4 perpendicular to the tangent L3 and tangent to the 9-shaped or 8-shaped cross section, as shown in FIGS. The distance a1 between the intersection of the tangent L3 and the tangents M3 and M4
A2 between the intersections of the tangent L3 and the tangents M3 and M4, and the average value thereof, that is, (a1 + a2) / 2 is defined as the length a in the vertical direction, and the distance b1 between the intersections of the tangent M3 and the tangents L3 and L4. B2 between the intersection of the tangent M4 and the tangents L3, L4
And the average value thereof, that is, (b1 + b2) / 2 is set as the horizontal length b.

The longitudinal / horizontal length ratio a / b of the S-shaped or H-shaped cross-section conjugate fiber having a concave portion or the 9- or 8-shaped cross-section conjugate fiber having a hollow portion is determined by the electron microscope cross-section of the hair fiber. A photograph (magnification: 1000 times) was taken, the lengths of a and b were measured from the photograph, and the average value at 20 cross sections was obtained.

The S-shaped or H-shaped cross-section conjugate fiber having a concave portion or the 9-shaped or 8-shaped cross-section conjugate fiber having a hollow portion can be used, for example, when spinning a thermoplastic polymer.
The shape of the hole of the spinneret is S-shaped, H-shaped, 9-shaped or 8
It can be manufactured by spinning and drawing using a composite die having a letter shape.

The protruding length of the bristle fiber 2 (the distance H between the tip of the loop of the bristle material protruding from the core material with the padding material sandwiched between the glass plates and the contact portion with the core material as a reference.
Are obtained for 10 loops, and the average value is obtained. Alternatively, in the case of a bristle exhibiting a cut shape, the length of the fiber from the core to the tip of the bristle protruding from the core with reference to the contact portion with the core, and constitutes one raised hair The average value of the shortest protruding length and the longest protruding length of the single fiber is determined, and the average value of the ten naps is preferably 5 to 50 mm. If the length of the bristle fiber 2 is too long, entanglement between the filling materials is likely to occur, and the drape property and the durability of the bulk are likely to be impaired. On the other hand, if the length is too short, the bristle fiber 2 is too short and the bulkiness is easily impaired.

The single fiber fineness of the hair fiber 2 is preferably 3 denier or less. If the single fiber fineness is too large, it becomes difficult to obtain a soft and soft texture like feathers. Although there is no particular lower limit for the single fiber fineness, it is preferably 0.4 denier or more from the viewpoint of the mutual exclusion of the filling and the resilience to compression.

Here, the fineness of the bristle fiber 2 is measured by measuring the specific gravity ρ of the bristle fiber according to the method of JIS L 1030 8.2. Scm ² was obtained, and the fineness d of the hair fiber was obtained by the following equation.

D = 900,000 × ρS In order to obtain a feather-like soft, slimy and soft texture, a silicone resin containing dimethylpolysiloxane as a main component is adhered to at least the fiber surface of the hair material fiber 2. Is preferred. When the silicone resin adheres to the fiber surface of the hair material fiber 2, in addition to the soft and slimy soft texture, the durability of the bulk due to the entanglement of the hair material fiber is hardly impaired, and the rebound to compression is suppressed. Has the effect of improving. The adhesion amount of dimethylpolysiloxane is
It is preferably 0.1 to 2% owf. 0.1% o
If it is less than wf, the effect of improving the texture and bulk durability or resilience may be reduced. If it exceeds 2% owf, the effect of improving the texture and bulk durability or resilience increases, but the cost is increased. And is economically disadvantageous.

Next, the fibers other than the conjugate fibers used for the bristle fibers 2 of the filling material of the present invention need not be crimped.
There may be a crimp to such an extent that mutual exclusion is not impaired with the conjugate fiber.

Also, from the viewpoint of improving bulkiness, bulk durability, drapability and flexibility, the core fiber 1 is made of the above-mentioned composite fiber, flat cross-section fiber or S-shaped or H-shaped polymer having a concave portion of a single polymer. It is also preferable to include a fiber having a sectional shape or a fiber having a 9-shaped or 8-shaped cross section having a hollow portion.

From the viewpoint of a structure in which the bristle fibers 2 of the filling material of the present invention are hard to be removed, fibers having a lower melting point than the core or the main constituent fibers of the bristle material are mixed with the core material or the bristle material. A structure in which the material and the bristle material are melt-bonded is also preferable. As the fiber having a low melting point, for example, a thermoplastic polymer R3 component having a lower melting point than the core fiber 1 and the hair fiber 2 is used as a sheath, and a thermoplastic polymer having a higher melting point than the thermoplastic polymer R3 component is used. Combined R
A core-sheath composite fiber having four components as the core is particularly preferred.

As the thermoplastic polymer R, for example, in the case of a polyester type, polyethylene, polypropylene, ethylene propylene copolymer, ethylene butene copolymer,
At least one selected from the group consisting of polyolefins such as ethylene-vinyl acetate copolymer or olefin copolymers, polyesters such as polyhexamethylene terephthalate, polyhexamethylene butylene terephthalate, and polyesters such as polyhexamethylene terephthalate isophthalate and thermoplastic polymers such as copolyesters. Different types of polymers can be used. Although the thermoplastic polymer R4 component is not particularly limited, for example, polyethylene terephthalate having terephthalic acid, 2,6-naphthalenedicarboxylic acid or an ester thereof as a main dicarboxylic acid component, and ethylene glycol or tetramethylene glycol as a main glycol component, Polybutylene terephthalate or a polyester such as polyethylene 2,6-naphthalate can be used. In the case of nylon, for example, the thermoplastic polymer R4 component is nylon 6 and the thermoplastic polymer R
Those having a lower melting point obtained by copolymerizing nylon 6 with nylon 66 having three components can also be used. Such a conjugate fiber can be produced by an ordinary conjugate spinning method.

Further, from the viewpoint of making the bristle fiber 2 of the filling material of the present invention difficult to come off, the core fiber or the bristle fiber is made of a high shrinkage fiber, in particular, the core material fiber is made of a high shrinkage fiber, and the filling material knitting is performed. It is also preferable to shrink by performing a heat treatment afterwards and to tighten the stitches.

[0036]

Next, the present invention will be described in more detail with reference to examples. [Example 1] As the core material fiber 1, a polyethylene terephthalate-based polyester obtained by copolymerizing 7 mol% of isophthalic acid and 4.5 mol% of bisphenol A and having a limiting viscosity of 0.65 and a melting point of 214 ° C ( 0.1% titanium oxide
75% obtained by melt-spinning and stretching using
Denier 24 filament hollow circular cross section yarn (hollow rate 2
4%) was used. The hair fiber 2 is made of polyethylene having a limiting viscosity of 0.65 and a melting point of 214 ° C. obtained by copolymerizing 7 mol% of isophthalic acid and 4.5 mol% of bisphenol A as a thermoplastic polymer R1 component. Polyethylene terephthalate (containing 0.1% by weight of titanium oxide) having a limiting viscosity of 0.65 and a melting point of 255 ° C. as a thermoplastic polymer R2 component using terephthalate-based polyester (containing 0.1% by weight of titanium oxide) Using R1
/ R2 having a weight ratio of 50/50, a 150-denier, 72-filament S-shaped cross-section composite fiber as shown in Fig. 4 (length / width ratio a / b = 1.
95), and the three composite fibers are aligned at 60 times / m
Was used.

A core fiber 1 is passed through a ground reed of a Russell knitting machine in which a part of the core fiber 1 and the bristle fiber 2 are partially needled to form a chain knitting structure. While knitting the knitted fabric through the fibers 2, the center of the waving yarn between the adjacent chain stitches was cut to obtain a fluff-like knitted fabric in which the chain stitch had a waving yarn. Further, the waving of the fluff-like and string-shaped knitted fabric and the chain knitting portion at the center of the next waving are cut into a stuffing object as shown in FIG. 2, and the stuffing object is dried with hot air at 165 ° C. Processing was performed for 5 minutes by a machine to obtain a filling material.

The obtained filling material has a core material fiber 1 having a longitudinal length of 12 mm, a three-dimensionally crimped cut-like hair material fiber 2 having an average protrusion length of 12.5 mm, Was difficult to remove from the core fiber 1, the removability between the filling materials was high, the bulk was high, and the touch was very soft. The stuffing material was blown into the side of the comforter together with an airflow as a stuffing material to produce a futon. As a result, a good comforter having feather-like bulkiness, flexibility and heat retention was obtained. Example 2 Before the stuffed material obtained in Example 1 was treated with a spray method so that 0.7% owf of a silicone resin containing dimethyl siloxane as a main component was applied before the hot air dryer treatment. Hot air drying treatment was performed at 165 ° C. for 5 minutes.

A futon was prepared from the obtained filling material in the same manner as in Example 1. A good comforter having feather-like bulkiness, bulk durability, drapability, sliminess, flexibility and heat retention was obtained. was gotten. [Example 3] As the hair material fiber 2, a thermoplastic polymer R1 was used.
7 mol% of isophthalic acid as a component and bisphenol A
Is used as a thermoplastic polymer R2 component using a polyethylene terephthalate-based polyester (containing 0.1% by weight of titanium oxide) having an intrinsic viscosity of 0.65 and a melting point of 214 ° C. Composite spinning with a weight ratio of R1 / R2 of 50/50, drawing, mechanical crimping, and drying using polyethylene terephthalate having a viscosity of 0.65 and a melting point of 255 ° C. (containing 0.1% by weight of titanium oxide). The 1.5 denier, 51 mm H-shaped cross-section composite raw cotton as shown in FIG. 6 (length / width ratio a / b = 1.
9), and further melt-spinning and drawing using polyethylene terephthalate containing 0.4% by weight of titanium oxide.
1.7-denier, 51 obtained by mechanical crimping and drying
S-shaped cross-section single polymer raw cotton with concave part of mm (vertical /
The horizontal length ratio a / b = 1.95) was manufactured, and 25% by weight of the H-shaped cross section composite raw cotton and 7% of the S-shaped cross section single polymer raw cotton were used.
5% by weight cotton blending, Z twist 7 as roving of about 0.5 cotton count
A futon was prepared in the same manner as in Example 2 except that the futon was used at 0 times / m.

The obtained filling material of the futon had a core material fiber 1 having a length of 14 mm in the longitudinal direction, a cut-shaped hair fiber 2 having an average protrusion length of 7.9 mm, and a feather-like bulkiness as a futon. It was a good comforter having good properties, bulk durability, drapability, sliminess, flexibility and heat retention. Example 4 A 9-shaped cross section composite raw cotton having a hollow portion as shown in FIG.
/B=1.88) to obtain H having the concave portion of Example 3.
A futon was prepared in the same manner as in Example 3 except that the shape cross section was replaced with raw cotton.

The obtained filling material of the futon has a core material fiber 1 having a length of 14 mm in the longitudinal direction and a cut-shaped hair fiber 2 having an average protrusion length of 7.7 mm. It was a good comforter having good properties, bulk durability, drapability, sliminess, flexibility and heat retention. [Example 5] As the core material fiber 1, the hollow circular section yarn of Example 1 was used. As the bristle fiber 2, an 8-shaped cross section composite raw cotton (length / width ratio a / b = 2.1) having a hollow portion as shown in FIG. Except that the S-shaped cross section composite raw cotton having the concave portion of Example 3 was used, the Z twist obtained by the same manner as in Example 3 was 70 times /
m of roving was used.

The core fiber 1 is passed through a ground yarn reed of a Russell knitting machine partially removed to form a chain knitting structure, and the bristle fiber 2 is passed through a waving reed as shown in FIG. A knitted fabric in the form of a string, in which the bristle fibers 2 are woven in a loop around the chain knitting of the core fibers 1, was knitted. After cutting the longitudinal direction of the cord-like knitted fabric, a silicone resin containing dimethylsiloxane as a main component is adhered by a spray method so as to adhere 0.7% owf, followed by hot-air drying at 165 ° C. for 5 minutes. A futon was prepared in the same manner as in Example 1 as a filling material.

The obtained futon padding material is a mixture of four groups having a loop shape, one group having a cut shape and three groups having a loop shape, and two groups having a cut shape. The length of the core fiber in the longitudinal direction is 19 mm, the length of the hair fiber 2 which is in the form of a loop is 16.6 mm on average, and the shape of the cut fiber is in the form of a mixture of projection lengths. Is 8.7 mm, and as a futon, feather-like bulkiness, bulk durability, drapability,
It was a good comforter having a slimy feeling, flexibility and heat retention.

[0044]

According to the present invention, it is possible to provide a filling material having feather-like bulkiness, bulk durability, drapability, sliminess, flexibility and heat retention.

[Brief description of the drawings]

FIG. 1 is a schematic view schematically showing an example of a structure of a filling material having cut hair fibers according to the present invention.

FIG. 2 is a schematic view schematically showing another example of a structure of a filling material having cut hair fibers according to the present invention.

FIG. 3 is a schematic view schematically showing an example of the structure of a filling material having looped bristle fibers according to the present invention.

FIG. 4 is an explanatory diagram for explaining the vertical and horizontal lengths of the S-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 5 is an explanatory diagram for explaining the vertical and horizontal lengths of the modified S-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 6 is an explanatory diagram illustrating the length and width of the H-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 7 is an explanatory view illustrating the length and width of a modified H-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 8 is an explanatory diagram illustrating the vertical and horizontal lengths of the ninth-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 9 is an explanatory diagram for explaining the vertical and horizontal lengths of the modified 9-shaped cross-section conjugate fiber used for the filling material of the present invention.

FIG. 10 is an explanatory diagram for explaining the vertical and horizontal lengths of the conjugate fiber having a figure-eight cross section used for the filling material of the present invention.

FIG. 11 is an explanatory diagram illustrating the vertical and horizontal lengths of the modified 8-shaped cross-section conjugate fiber used for the filling material of the present invention.

[Explanation of symbols]

 1: core fiber 2: hair fiber 3: core material a: vertical length of S, H, 9 and 8-shaped cross-section composite fiber b: horizontal length of S, H, 9 and 8-shaped cross-section composite fiber length

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B68G 1/00 B68G 1/00

Claims (11)

[Claims] 1. A core material formed into a stitch structure by a core fiber and a hair fiber woven into a stitch of the core material, and at least two or more different thermoplastics are formed in the hair fiber. S having a concave portion formed by joining a polymer
A filling material comprising a conjugated fiber having a cross-sectional shape, a conjugated fiber having an H-shaped cross-section, a conjugated fiber having a 9-shaped cross section or a conjugated fiber having an 8-shaped cross-section having a hollow portion. 2. The filling material according to claim 1, wherein the stitch structure of the core material is a chain stitch structure. 3. The filling material according to claim 1, wherein the length of the core material in the longitudinal direction is 5 to 100 mm. 4. A hair fiber protruding from a core material having a protruding length of 5
The filling material according to any one of claims 1 to 3, wherein the filling material has a length of 50 mm. 5. The filling material according to claim 1, wherein the single fiber fineness of the hair fiber is 3 denier or less. 6. The filling material according to claim 1, wherein a silicone resin containing dimethylpolysiloxane as a main component is attached to at least the fiber surface of the hair fiber. 7. A futon characterized by using the filling material according to any one of claims 1 to 6. 8. A cushion comprising the padding material according to any one of claims 1 to 6. 9. A pillow comprising the filling material according to claim 1. 10. A stuffed jacket comprising the stuffing material according to any one of claims 1 to 6. 11. A sleeping bag comprising the filling material according to any one of claims 1 to 6.