JP2006219794A - Thread-winding body for artificial hair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thread-winding body for artificial hair suitable for mechanization of wig making. <P>SOLUTION: The thread-winding body for artificial hair is obtained by winding synthetic fiber yarns around a bobbin or a cylindrical body. The number of the synthetic fibers to be wound is ≤5 pieces. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wound body for artificial hair suitable for mechanization of wig production, and particularly to a wound body for artificial hair suitable for a fully automatic wig manufacturing machine.

Conventionally, wigs have been manufactured by using two thick artificial hairs or human hairs of a desired length from a tow-shaped flocked member on a thick base material formed into a three-dimensional shape. In a state of being bundled one by one, the flocked member was planted by folding it into a base material (generally a net-like material) and sewing or tying it one by one by hand. The fiber for artificial hair used for these is generally handled as a fiber bundle of about 10 ⁴ denier as described in, for example, JP-A-63-12716 (Patent Document 1).

  However, in such a hand planting operation, for example, it is at most to plant 20,000 artificial hairs in about 2 to 3 weeks, and there is a disadvantage that the work efficiency is extremely poor. In addition, when manufacturing overseas where labor costs are low in order to avoid high costs, there are disadvantages that many defective products occur and the yield is poor.

  Therefore, a mechanization measure for manufacturing a wig is disclosed in Japanese Patent Laid-Open No. 2003-105616 (Patent Document 2). However, there is no description about bobbins for supplying artificial hair.

JP 63-12716 A JP 2003-105616 A

  The present invention has been made based on the above background, and an object thereof is to provide a wound body for artificial hair suitable for mechanization of wig production.

  As a result of intensive studies to achieve the above object, the inventors of the present invention are wound bodies in which a synthetic fiber yarn is wound around a bobbin or a tubular body, and the number of the synthetic fibers wound is 5 or less. It has been found that by using a certain wound body for artificial hair, mechanization of wig production becomes possible, and the present invention has been achieved.

  Since the wound body for artificial hair of the present invention has 5 or less yarns continuously wound around a bobbin or a cylindrical object, it can be supplied to a wig manufacturing machine, and by doing so, For the first time, it is possible to automate, and the cost of manufacturing a wig can be greatly reduced.

  The synthetic fiber of the present invention needs to be a synthetic fiber having continuous yarns such as polyester fiber, nylon fiber, acrylonitrile fiber, vinyl chloride fiber, vinylidene chloride fiber, and polyolefin fiber. Of these, polyester fibers are preferred from the viewpoints of handleability and heat resistance.

  Polyester is a polyester having terephthalic acid as the main difunctional carboxylic acid and ethylene glycol, 1,3-propanediol or 1,4-butanediol as the main glycol component, specifically polyethylene terephthalate, polypropylene terephthalate or polybutylene. Terephthalate is preferred.

  These polyesters have a copolymer component of 15 mol% or less, preferably 10 mol% or less, particularly preferably 5 mol% or less, based on the total acid component, within a range not impairing the object of the present invention. It may be copolymerized. Preferred copolymerization components include 2,6-naphthalenedicarboxylic acid, 4,4′-dicarboxyphenoxymethane, acid components such as isophthalic acid, phosphoric acid and phosphonic acid, diethylene glycol, EO addition product of bisphenol-A, etc. The diol component can be exemplified. Among these, phosphorus compounds such as phosphoric acid and phosphonic acid are preferable from the viewpoint of flame retardancy. Further, as long as the amount is small, a trifunctional compound such as trimesic acid, trimellitic acid, boric acid, glycerin, trimethylolpropane and the like may be copolymerized.

  These polyesters include other thermoplastic synthetic resins for modification purposes, such as polyamides such as nylon 6 and nylon 6/6, polyolefins such as polyethylene and polypropylene, polytetrafluoroethylene, polyvinylidene fluoride, ethylene Fluorine-containing polymers such as tetrafluoroethylene copolymer may be mixed in the range of 0.5 to 50% by weight.

  Further, the above polyester may contain a known ultraviolet absorber for the purpose of preventing discoloration of the artificial hair being used. As an ultraviolet absorber preferably used, for example, 2,2-methylenebis [4- (1,1,3,3-tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol, 2- [ 2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2- (5-methyl-2-hydroxyphenyl) benzotriazole, 2- [3,5-bis (2 , 2-Dimethylpropyl) -2-hydroxyphenyl] benzotriazole, 2- (3-tertiarybutyl-5-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-tertiarybutyl) Benzotriazol such as 2-hydroxyphenyl) -5-chlorobenzotriazole, 2- [2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole UV absorber, 2-hydroxy-4- (methacryloyloxyethoxy) benzophenone 30-50 mol% and methyl methacrylate 70-30 mol% random copolymer, 2,4-dihydroxybenzophenone, 2,2 ', 4 Benzophenone UV absorbers such as 4'-tetrahydroxybenzophenone, 2-hydroxy-4- (β-hydroxyethoxy) -benzophenone, bis (5-benzoyl-4-hydroxy-2-methoxyphenyl) methane, iron oxide fine particles, etc. Can be illustrated. Among them, bis (5-benzoyl-4-hydroxy-2-methoxyphenyl) methane, 2,2-methylenebis [4- (1,1,3,3-tetramethylbutyl) -6- (2H-benzotriazole- When 2-yl) phenol, 2- [2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, iron oxide fine particles, etc. are added to and mixed with molten polyester The heat resistance is favorable and high light resistance is obtained, which is preferable. In addition, a random copolymer of 2-hydroxy-4- (methacryloyloxyethoxy) benzophenone 30-50 mol% and methyl methacrylate 70-30 mol% has a high molecular weight, so there is little bleed out from the polyester fiber and stable light resistance. It is preferable because of its property. Two or more of these various ultraviolet absorbers may be used in combination.

  Moreover, in order to protect a human body from the danger by the fire in use, you may include well-known organic or inorganic flame retardants, such as phosphorus type | system | group, halogen type | system | group, and antimony trioxide, in synthetic fiber. Further, the synthetic fiber itself may be modified or an antistatic agent may be blended in the synthetic fiber for the purpose of preventing clinging or entanglement due to charging of the fiber or adhesion of dust.

  Next, it is preferable that the polyester fiber concerning this invention has a recessed part in the fiber surface. The shape of the recess is not particularly limited and is arbitrary, but the maximum length (diameter in the longitudinal direction) of the opening is in the range of 2 to 20 μm, particularly in the range of 5 to 15 μm. It is preferable that 10-30, especially 10-20 are present.

  Here, the maximum length of the opening and the number of existence per unit area are average values of values measured from photographs obtained by photographing 10 fields of the fiber surface at a magnification of 1000 using a scanning electron microscope. Even if the number of recesses present on the fiber surface is 10 to 30 per 100 square μm, the matte effect tends to be reduced when the maximum length of the opening forming the recess is less than 2 μm. When it exceeds 30 μm, not only the roughness of the fiber surface can be seen with the naked eye, but also the physical properties of the yarn may be lowered. On the other hand, even if the maximum length of the opening of the recess is in the range of 2 to 30 μm, the matting effect is reduced when the number of the recesses is less than 10 per 100 square μm, and conversely when the number exceeds 30. The luster is too thin and it tends to be dead.

  The method for forming the concave portion having such a shape on the surface of the polyester fiber is not particularly limited, and any known method such as a conventionally known blasting method or alkali weight reduction processing method can be employed. In particular, a method of forming fine pores on the fiber surface by subjecting a fiber containing a fine pore forming agent in polyester to an alkali weight reduction treatment is preferable.

  Fine pore forming agents include silica sol, dry silica containing aluminum oxide, dry silica with silanol groups blocked on the particle surface, alumina sol, fine alumina, ultrafine titanium oxide, fine calcium carbonate, organic sulfonic acid A compound etc. can be illustrated, The shape of a recessed part can be controlled by selecting these average particle diameters, addition amount, and alkali weight reduction process conditions suitably. Especially, when a micropore formation agent is a compound containing a metal, since the recessed part of a favorable shape can be formed by an alkali weight reduction process, it is especially preferable.

  The fineness of the synthetic fiber for artificial hair does not need to be specified in particular, but is preferably in the range of 20 to 110 dtex, preferably 30 to 90 dtex from the viewpoint of expressing a natural-like effect.

  In addition, the fiber cross-sectional shape of the fiber for artificial hair of the present invention may be any shape, for example, many such as circle, ellipse, triangle, T, Y, H, +5 leaves, 6 leaves, 7 leaves, 8 leaves, etc. A leaf shape, a square shape, a rectangular shape, a rhombus shape, a saddle shape, a horseshoe shape, and the like can be given. Furthermore, these shapes may be partially changed. Among these, those having a flat cross-sectional shape and a necking degree of 1.5 or more are more preferable from the viewpoint of combability and gloss. Here, the degree of necking is a value expressed by the length of the thickest part / the length of the narrowest part in the flat cross-sectional shape. In use, a plurality of cross-sectional fibers can be used in appropriate combination.

  The synthetic fiber according to the present invention may not be colored, but is dyed as necessary. Although a disperse dye may be used as the dye, it is preferable to use a dye having a light fastness of 5 or higher from the viewpoint of discoloration of the artificial hair being used. As a dyeing method, a known dyeing carrier agent may be used in combination, but a high-pressure dyeing method that does not require a dyeing carrier agent is more preferable. In addition, various pigments such as carbon black may be added to the synthetic fiber before dyeing. In this case, not only can the dye at the time of dyeing be saved, but it is preferable because it is not necessary to dye depending on the use. .

  Next, the synthetic fiber according to the present invention needs to have five or less yarns wound around a bobbin or a cylindrical body. Conventionally, since only a certain length of human hair can be obtained, synthetic fibers used for artificial hair are also supplied in a limited length. It cannot be supplied to the machine.

  On the other hand, generally, the number of yarns when synthetic fibers are used for clothing or industrial materials is generally 10 or more. However, when it is used in a machine for manufacturing a wig, when the number is more than 5, it is not preferable because the sewn portion is bulky and unnatural when it is made into a wig. In particular, the case of 2 or 3 is more preferable.

  In addition, the longer the yarn length of the synthetic fiber of the present invention, the less frequently the winding body is replaced and the productivity is improved. On the other hand, the longer the yarn length, the heavier the winding body weight. , Handling becomes difficult. Preferably, it is in the range of 1 km or more, particularly preferably 3 to 20 km.

  Since the artificial hair fiber of the present invention described above is a wound body in which 5 or less synthetic fiber yarns are wound around a bobbin or a cylindrical body, the wig can be manufactured stably for a long time. .

Hereinafter, the present invention will be described more specifically with reference to examples.
[Example 1]
Intrinsic viscosity (phenol and tetrachloro) in which sodium benzenesulfonate-3,5-di (carboxylic acid Mg _1/2 ) is dispersed in a polymer by 0.5% by weight (0.34 mol% based on the terephthalic acid component) (Measured in a mixed solvent of ethane 1: 1 at 25 ° C.) A 0.64 polyethylene terephthalate chip was dried at 160 ° C. for 8 hours under vacuum. A spinneret having 30 holes of 0.3 mm diameter spinning holes using the tip at 290 ° C. using an extruder-type kneader, a metering gear pump, and a spinning machine having a filtration layer made of 50 mesh glass beads and 150 mesh wire mesh. It was further melted and discharged, and after being cooled with 40 ° C. hot water at a position 20 cm below the spinneret, a wound spinning yarn was obtained.

  Subsequently, the film was stretched 4.0 times in warm water at 70 ° C., further subjected to a relaxation treatment of 8%, and wound as a 600 dtex / 12 fil stretched yarn. N treatment (treatment at 98 ° C. for 30 minutes in a 50 g / liter aqueous solution of NaOH) was added to the obtained drawn yarn to obtain a polyester fiber having a weight loss rate of 10% by weight.

  On the surface of the obtained polyester fiber, there were 16 recesses having a maximum length of 2 μm or more and 20 μm or less per 100 square μm of fiber surface area. The fiber strength was 3.36 cN / dtex, and the single fiber fineness was 58 dtex.

This fiber was dyed with a dyeing solution shown below using a high-pressure Smith dyeing machine at a bath ratio of 20: 1 at 130 ° C. for 60 minutes, followed by hydrosulfite 1.5 g / liter, caustic soda 1 g. Reductive washing was carried out at 80 ° C. for 20 minutes in a bath ratio of 20: 1 in an aqueous solution containing 1 g / liter of amylazine / liter.
(Staining solution)
Sumikasen Brown 2.5% owf
Miketon Polyster Black 0.3% owf
Dianix Fast Yellow 1.5% owf
Dianix Fast Dark Green 1.0% owf

The obtained artificial hair fiber was wound around a double-bottle bobbin with a length of 5 km by two yarns to obtain a wound body for artificial hair.
The obtained bobbin was installed in an automatic hair transplanter for manufacturing a wig described in JP-A-2003-105616, and the wig was produced by continuous operation for 10 hours. It was in a very good state with no low ground due to yarn breakage.

[Comparative Example 1]
The obtained fiber for artificial hair was wound around a double-bottle bobbin by 6 yarns at a length of 1.6 km to obtain an artificial hair wound body. The obtained bobbin was installed and operated in an automatic hair transplanter for wig production in the same manner as in Example 1. The operating time was only 3 hours and 20 minutes, and continuous production was not possible. Moreover, the obtained wig was not uniform and only a product having a very bad commercial value could be obtained.

  According to the present invention, there is provided a wound body for artificial hair suitable for mechanization of wig production, in which 5 or less synthetic fiber yarns are continuously wound around a bobbin or a cylindrical object. The mechanization and automation of wig production becomes possible.

Claims (8)

  A wound body for artificial hair, wherein the synthetic fiber thread is wound around a bobbin or a tubular body, and the number of wound synthetic fiber threads is 5 or less.   The wound body for artificial hair according to claim 1, wherein the bobbin is a double collar type.   The wound body for artificial hair according to claim 1 or 2, wherein the cylindrical body is a thread tube.   The wound body for artificial hair according to any one of claims 1 to 3, wherein the synthetic fiber yarn has a length of 1 km or more.   The wound body for artificial hair according to any one of claims 1 to 4, wherein the synthetic fiber yarn is a polyester fiber yarn.   The artificial hair-wound body according to claim 5, wherein the synthetic fiber yarn is a polyester fiber yarn having a concave portion on the fiber surface.   The wound body for artificial hair according to claim 6, wherein the synthetic fiber yarn has 10 to 30 concave portions with a maximum opening length of 2.0 to 20 µm per 100 square µm on the fiber surface.   The wound body for artificial hair according to any one of claims 1 to 7, wherein the single yarn fineness of the synthetic fiber yarn is in the range of 20 to 110 dtex.