Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
  • D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
  • A41G3/00—Wigs
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
  • A41G3/00—Wigs
  • A41G3/0083—Wigs characterised by their hair filaments
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
  • C08L25/02—Homopolymers or copolymers of hydrocarbons
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
  • C08L25/02—Homopolymers or copolymers of hydrocarbons
  • C08L25/04—Homopolymers or copolymers of styrene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
  • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
  • C08L27/06—Homopolymers or copolymers of vinyl chloride
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • C08L33/04—Homopolymers or copolymers of esters
  • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
  • D01F6/10—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polyvinyl chloride or polyvinylidene chloride
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/16—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/40—Modacrylic fibres, i.e. containing 35 to 85% acrylonitrile
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/42—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising cyclic compounds containing one carbon-to-carbon double bond in the side chain as major constituent
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
  • D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
  • D01F6/56—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
  • C08F114/02—Monomers containing chlorine
  • C08F114/04—Monomers containing two carbon atoms
  • C08F114/06—Vinyl chloride
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
  • C08F212/02—Monomers containing only one unsaturated aliphatic radical
  • C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
  • C08F212/06—Hydrocarbons
  • C08F212/08—Styrene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
  • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
  • C08F220/10—Esters
  • C08F220/12—Esters of monohydric alcohols or phenols
  • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
  • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
  • C08F220/10—Esters
  • C08F220/12—Esters of monohydric alcohols or phenols
  • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
  • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2203/00—Applications
  • C08L2203/12—Applications used for fibers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2205/00—Polymer mixtures characterised by other features
  • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
  • D10B2321/041—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polyvinyl chloride or polyvinylidene chloride
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/12—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2503/00—Domestic or personal
  • D10B2503/08—Wigs

Definitions

• the present invention relates to artificial hair fibers, hair decoration products, and the like.
• Vinyl chloride polymer fibers obtained by spinning vinyl chloride polymers have excellent flexibility, so they are often used as fibers for artificial hair that constitute hair decoration products.
• vinyl chloride polymer fibers are not suitable for styles that require volume in artificial hair applications because the vinyl chloride polymer has a high specific gravity.
• a means of blending an aromatic vinyl polymer having a smaller specific gravity than the vinyl chloride polymer has been proposed (see, for example, Patent Documents 1 and 2 below).
• fibers for artificial hair fibers it is required to suppress the fiber from being cut (thread breakage) when performing melt spinning, etc., and it is required to have excellent spinnability. Moreover, fibers for artificial hair are required to have excellent combing properties (ease of combing) of fiber bundles from the viewpoint of preventing users from feeling discomfort.
• An object of one aspect of the present invention is to provide fibers for artificial hair that have excellent spinnability and combability. Another object of the present invention is to provide a hair decoration product using the artificial hair fiber.
• an artificial hair fiber having a plurality of single fibers, the single fibers comprising (A) a vinyl chloride polymer, (B) an aromatic vinyl polymer, and (C) a (meth)acrylic acid-based and a polymer, and the content of the component (B) is more than 0% by mass and 50% by mass or less based on the total amount of the component (A) and the component (B), and the (C ) content of component (A) and component (B) exceeds 0% by mass and is 8% by mass or less based on the total amount of component (A) and component (B), and the variation coefficient of the fineness of the single fiber is 35 or less.
• Fiber for artificial hair [2] The fiber for artificial hair according to [1], wherein the component (B) has styrene and acrylonitrile as monomer units. [3] The artificial hair fiber according to [1] or [2], wherein the component (C) has a weight average molecular weight of 200,000 to 10,000,000. [4] The artificial hair fiber according to any one of [1] to [3], wherein the component (C) has methyl (meth)acrylate as a monomer unit. [5] In the component (C), the content of methyl (meth)acrylate monomer units is 60 to 90% by mass, and the content of butyl (meth)acrylate monomer units is 10 to 90% by mass. The artificial hair fiber according to [4], which is 40% by mass.
• a hair decoration product comprising the artificial hair fiber according to any one of [1] to [7].
• artificial hair fibers having excellent spinnability and combability can be provided.
• the upper limit or lower limit of the numerical range at one stage can be arbitrarily combined with the upper limit or lower limit of the numerical range at another stage.
• the upper or lower limits of the numerical ranges may be replaced with the values shown in the examples.
• the materials exemplified in this specification can be used singly or in combination of two or more unless otherwise specified.
• the content of each component in the composition means the total amount of the plurality of substances present in the composition unless otherwise specified when there are multiple substances corresponding to each component in the composition.
• “(Meth)acrylic acid” means at least one of acrylic acid and methacrylic acid corresponding thereto. The same applies to other similar expressions such as "(meth)acrylonitrile".
• the artificial hair fiber according to this embodiment has a plurality of single fibers (hereinafter referred to as "single fibers F").
• the single fiber F is composed of (A) a vinyl chloride polymer (hereinafter sometimes referred to as "(A) component”), (B) an aromatic vinyl polymer (hereinafter sometimes referred to as “(B) component”), (C) a (meth)acrylic acid-based polymer (hereinafter sometimes referred to as “component (C)”);
• component (B) is more than 0% by mass and not more than 50% by mass based on the total amount of components (A) and (B), and the content of component (C) is It is more than 0% by mass and 8% by mass or less based on the total amount of the component (B).
• the variation coefficient of the fineness (single fineness) of the single fiber F is 35 or less.
• the fibers for artificial hair according to the present embodiment have excellent spinnability, and for example, in the evaluation method described in the examples below, the fiber breakage can be suppressed to 3 times or less.
• the artificial hair fiber according to the present embodiment has excellent combability, and for example, the resistance is reduced to 300 gf or less (preferably 250 gf or less) in the evaluation method described in the examples below. can.
• the inventor of the present invention conceived of improving the voluminousness (specific volume) by applying gear processing to crimp the artificial hair fibers. .
• the voluminous feel may not be sufficiently improved, which limits the styles that can be produced.
• the artificial hair fiber was subjected to gear processing (groove depth of gear waveform: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m / min).
• a specific volume of 6.0 cc/g or more (preferably 8.0 cc/g or more) can be obtained.
• the combability may deteriorate, but according to one aspect of the fiber for artificial hair according to the present embodiment, excellent combability can be obtained while obtaining an excellent voluminous feel. be able to.
• Gear processing is a process of crimping by passing fibers between two meshing high temperature gears.
• the material of the gear, the waveform of the gear, the number of gear fractions, etc. are not particularly limited.
• the wavy shape of the crimp may vary depending on the fiber material, fineness, pressure conditions between gears, etc., but in this embodiment, the wavy shape of the crimp is determined by the depth of the groove of the gear waveform, the surface temperature of the gear, the processing speed, etc. can be controlled.
• These processing conditions are not particularly limited, but the groove depth of the gear waveform may be 0.2 to 6 mm or 0.5 to 5 mm, and the surface temperature of the gear is 50 to 110 ° C. or 60 to 100 ° C. and the processing speed may be 0.5-10 m/min or 1.0-8.0 m/min.
• the artificial hair fiber according to the present embodiment is an artificial hair fiber group having a plurality of single fibers F, and may be, for example, an artificial hair fiber group having 100 or more single fibers F.
• the fibers for artificial hair according to this embodiment may be fiber bundles for artificial hair.
• the fiber for artificial hair according to the present embodiment may be used as artificial hair, and may be used to obtain artificial hair.
• the single fiber F in the fiber for artificial hair according to the present embodiment may be a stretched fiber or an unstretched fiber.
• the coefficient of variation of the fineness of the plurality of single fibers F is 35 or less.
• excellent combability can be obtained. It is presumed that excellent combability can be obtained because yarns with low fineness are less likely to be included due to the small coefficient of variation of fineness.
• the factor for obtaining excellent combability is not limited to this content.
• the coefficient of variation of the fineness of the single fibers F may be the coefficient of variation of the fineness of 100 single fibers F, and may be calculated from the average value and standard deviation of the fineness of the 100 single fibers F.
• the single fiber F to be evaluated for the coefficient of variation may be a single fiber obtained by subjecting a resin composition to melt spinning, drawing treatment, and heat treatment, as described in Examples below.
• the variation coefficient of fineness of single fiber F can be adjusted by the content of component (B), the weight average molecular weight and content of component (C), the type and content of monomer units in component (C), and the like. For example, when the content of component (B), the content of component (C), or the content of methyl (meth)acrylate monomer units in component (C) is high, the weight average of component (C) The coefficient of variation tends to decrease when the molecular weight is high or when the content of the monomer unit of butyl (meth)acrylate in the component (C) is low.
• the variation coefficient of the fineness of the single fibers F is 30 or less, 25 or less, 24 or less, 20 or less, 18 or less, 16 or less, 15 or less, 14 or less, 12 or less, or , 10 or less.
• the variation coefficient of the fineness of the single fiber F is 0 or more, more than 0, 1 or more, 3 or more, 5 or more, 8 or more, 10 or more, 12 or more, 14 or more, 15 or more, 16 or more, 18 or more, 20 or more, 24. , 25 or more, or 30 or more. From these viewpoints, the coefficient of variation of the fineness of the single fiber F may be 0 to 30, more than 0 to 30 or less, 1 to 30, 5 to 30, 5 to 20, 5 to 15, or 5 to 12. .
• the average value of the fineness of the single fiber F (unit: decitex) may be within the following range.
• the average value may be 10 or more, 20 or more, 30 or more, 40 or more, or 50 or more.
• the average value may be 100 or less, 90 or less, 80 or less, 70 or less, 60 or less, or 50 or less. From these points of view, the average value may be 10-100, 30-80, or 40-60.
• the average value of the fineness of the single fibers F may be the average value of 100 single fibers F.
• the standard deviation (unit: decitex) of the fineness of the single fiber F may be within the following range.
• the standard deviation may be 0 or greater, greater than 0, 1 or greater, 3 or greater, 5 or greater, 6 or greater, 7 or greater, 8 or greater, 9 or greater, 10 or greater, 12 or greater, or 15 or greater.
• the standard deviation may be 15 or less, 12 or less, 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, or 5 or less. From these points of view, the standard deviation may be 0-15, greater than 0 and 15 or less, 1-15, or 1-10.
• the standard deviation of the fineness of the single fibers F may be the standard deviation of 100 single fibers F.
• the single fiber F contains a vinyl chloride polymer (excluding the (C) component; for example, a vinyl chloride resin) as the (A) component.
• a "vinyl chloride polymer” is a polymer having vinyl chloride as a monomer unit (a polymer having structural units derived from vinyl chloride).
• Component (A) does not have a (meth)acrylic acid-based compound (compound having a (meth)acryloyl group) as a monomer unit.
• the component (A) may be a vinyl chloride homopolymer or a vinyl chloride copolymer. Copolymers of vinyl chloride are polymers of vinyl chloride and other compounds (compounds other than vinyl chloride).
• vinyl chloride copolymers include copolymers of vinyl chloride and vinyl esters, such as vinyl chloride-vinyl acetate copolymers and vinyl chloride-vinyl propionate copolymers; vinyl chloride-ethylene copolymers; Copolymers of vinyl chloride and olefins such as vinyl chloride-propylene copolymers; and vinyl chloride-(meth)acrylonitrile copolymers.
• Component (A) is a vinyl chloride homopolymer, a vinyl chloride-ethylene copolymer, and a vinyl chloride-vinyl acetate copolymer from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness. It may contain at least one selected from the group consisting of, and may contain a homopolymer of vinyl chloride.
• the component (A) can be produced by emulsion polymerization, bulk polymerization, suspension polymerization, or the like.
• the component (A) may be a polymer produced by suspension polymerization from the viewpoint of initial colorability of fibers.
• the content of component (A) may be within the following range based on the total amount of component (A) and component (B).
• the content of component (A) is 99% by mass or less, 98% by mass or less, 96% by mass or less, 95% by mass or less, less than 95% by mass, 90% by mass or less, from the viewpoint of easily obtaining excellent combability and voluminousness.
• % by mass or less 85% by mass or less, 83% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 65% by mass or less, 60% by mass or less, or 55% by mass or less.
• the content of component (A) is 50% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, It may be 75 mass % or more, 80 mass % or more, 83 mass % or more, 85 mass % or more, 90 mass % or more, 95 mass % or more, 95 mass % or more, or 96 mass % or more.
• component (A) is 50% by mass or more and less than 100% by mass, 50 to 99% by mass, 50 to 98% by mass, 50 to 96% by mass, 50 to 95% by mass, 60 to 96% by mass % by weight, 65-96% by weight, 70-96% by weight, 60-95% by weight, 65-90% by weight, or 65-80% by weight.
• the single fiber F contains an aromatic vinyl polymer (excluding the (C) component; for example, an aromatic vinyl resin) as the (B) component.
• An "aromatic vinyl polymer” is a polymer having an aromatic vinyl compound as a monomer unit (a polymer having a structural unit derived from an aromatic vinyl compound).
• Component (B) does not have a (meth)acrylic acid-based compound (a compound having a (meth)acryloyl group) as a monomer unit.
• aromatic vinyl compounds include styrene compounds, vinyltoluene, vinylnaphthalene, vinylanthracene, and the like.
• the styrenic compound may contain at least one selected from the group consisting of styrene and styrene derivatives.
• Styrene derivatives include ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene, chlorostyrene and the like.
• the styrene-based compound may contain styrene from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness.
• the (B) component may be a homopolymer of an aromatic vinyl compound, or may be a copolymer of an aromatic vinyl compound (for example, an aromatic vinyl-based copolymer resin).
• the aromatic vinyl copolymer may be a copolymer having a plurality of types of aromatic vinyl compounds as monomer units, and the aromatic vinyl compound and a compound different from the aromatic vinyl compound are used as monomer units. It may be a copolymer having as
• Examples of compounds different from aromatic vinyl compounds include (meth)acrylonitrile and maleic anhydride.
• the component (B) it is possible to use a polymer that does not have vinyl chloride as a monomer unit, and a polymer that does not have a halogen-containing compound as a monomer unit may be used.
• the component (B) may have a styrene compound and (meth)acrylonitrile as monomer units from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness (monomers of styrene compounds and at least one selected from the group consisting of a monomer unit of acrylonitrile and a monomer unit of methacrylonitrile), styrene and (meth) acrylonitrile as monomer units Often, it may have styrene and acrylonitrile as monomeric units.
• the content of the monomer units of the styrene compound is the total amount of the component (B), or the total amount of the monomer units of the styrene compound and the monomer units of (meth)acrylonitrile (the monomer unit of the styrene compound
• the total amount of the body unit, the acrylonitrile monomer unit and the methacrylonitrile monomer unit may be in the following ranges.
• the content of the monomer unit of the styrene compound is 50% by mass or more, 50% by mass or more, 60% by mass or more, 60% by mass or more, 64% by mass or more, 65% by mass or more, from the viewpoint of easily obtaining an excellent voluminous feel.
• the content of the monomer unit of the styrene compound is less than 100% by mass, 95% by mass or less, 90% by mass or less, 88% by mass or less, less than 88% by mass, 86% by mass, from the viewpoint of easily obtaining excellent spinnability.
• the content of the monomer unit of the styrene compound is 50% by mass or more and less than 100% by mass, 60 to 95% by mass, 68 to 90% by mass, 68 to 86% by mass, 68 to 82% by mass.
• the content of (meth)acrylonitrile monomeric units is the total amount of component (B), or the content of styrene compounds Based on the total amount of monomer units and (meth)acrylonitrile monomer units, the following ranges may be used.
• the content of the (meth)acrylonitrile monomer unit is more than 0% by mass, 5% by mass or more, 10% by mass or more, 12% by mass or more, more than 12% by mass, from the viewpoint of easily obtaining excellent spinnability.
• the content of the (meth)acrylonitrile monomer unit is 50% by mass or less, less than 50% by mass, 40 % by mass or less, less than 40% by mass, 36% by mass or less, 35% by mass or less, 32% by mass or less, 31% by mass or less, less than 31% by mass, 30% by mass or less, less than 30% by mass, 26% by mass or less, 25 % by mass or less, 20% by mass or less, 18% by mass or less, 15% by mass or less, less than 15% by mass, or 14% by mass or less.
• the content of the (meth)acrylonitrile monomer unit is more than 0% by mass and 50% by mass or less, 5 to 40% by mass, 10 to 32% by mass, 14 to 32% by mass, 18 to 32% by mass. % by mass, 25 to 32% by mass, 30 to 32% by mass, 10 to 30% by mass, 10 to 25% by mass, 10 to 18% by mass, 10 to 14% by mass, 14 to 30% by mass, 18 to 30% by mass or , more than 12% by mass and up to 26% by mass.
• the content of the monomer units of the styrene compound and the content of the monomer units of (meth)acrylonitrile are arbitrary, and the content of the monomer units of the styrene compound and (meth)
• Each of the contents of the acrylonitrile monomeric units may be in each of the ranges described above.
• component (B) is based on the total amount of component (B), or the total amount of the monomer units of the styrene compound and the monomer units of (meth)acrylonitrile, the monomer units of the styrene compound
• the content of the (meth) acrylonitrile monomer unit may be 5 to 50% by mass with a content of 50 to 95% by mass, and the content of the monomer unit of the styrenic compound is It may be 60 to 90% by mass and the content of (meth)acrylonitrile monomer units is 10 to 40% by mass.
• the total amount of the styrene-based compound monomer unit and the (meth)acrylonitrile monomer unit is selected from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness. Based on the whole, 50% by mass or more, more than 50% by mass, 60% by mass or more, 70% by mass or more, 80% by mass or more, 90% by mass or more, 92% by mass or more, 95% by mass or more, 96% by mass or more , 98% by weight or more, 99% by weight or more, 99.5% by weight or more, or substantially 100% by weight.
• the content of component (B) is more than 0% by mass and 50% by mass or less based on the total amount of components (A) and (B).
• excellent spinnability can be obtained.
• the mixing (compatibility) between component (A) and component (B) is improved, and the dispersibility of component (A) and component (B) is improved. Therefore, it is presumed that excellent spinnability can be obtained because the ejection from the nozzle hole in spinning is uniformed.
• the factor for obtaining excellent spinnability is not limited to this content.
• the content of component (B) may be within the following ranges based on the total amount of components (A) and (B).
• the content of component (B) is 1% by mass or more, 2% by mass or more, 4% by mass or more, 5% by mass or more, more than 5% by mass, and 10% by mass, from the viewpoint of easily obtaining excellent combability and voluminousness. % by mass or more, 15% by mass or more, 17% by mass or more, 20% by mass or more, 25% by mass or more, 30% by mass or more, 35% by mass or more, 40% by mass or more, or 45% by mass or more.
• the content of the component (B) is less than 50% by mass, 45% by mass or less, 40% by mass or less, 35% by mass or less, 30% by mass or less, 25% by mass or less, from the viewpoint of easily obtaining excellent spinnability. It may be 20% by mass or less, 17% by mass or less, 15% by mass or less, 10% by mass or less, 5% by mass or less, less than 5% by mass, or 4% by mass or less. From these viewpoints, the content of component (B) is 1 to 50% by mass, 2 to 50% by mass, 4 to 50% by mass, 5 to 50% by mass, 4 to 40% by mass, 4 to 35% by mass, It may be 4-30% by weight, 5-40% by weight, 10-35% by weight, or 20-35% by weight.
• the single fiber F has a component (A) content of 50 to 99% by mass and a component (B) content of 1 to 50, based on the total amount of the components (A) and (B). % by mass, and the content of component (A) is 60 to 95% by mass and the content of component (B) is 5 to 40% by mass, and (A) The content of the component may be 65 to 90% by mass and the content of the component (B) is 10 to 35% by mass.
• the total amount of components (A) and (B) may be within the following ranges based on the total mass of the single fiber F. From the viewpoint of easily obtaining excellent spinnability, the total amount of components (A) and (B) is 50% by mass or more, 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass or more, It may be 90% by mass or more, 92% by mass or more, 93% by mass or more, 94% by mass or more, or 95% by mass or more. The total amount of components (A) and (B) is less than 100% by mass, 99% by mass or less, 97% by mass or less, 95% by mass or less, or 94% by mass or less, from the viewpoint of easily obtaining excellent combability.
• the total amount of components (A) and (B) is 50% by mass or more and less than 100% by mass, more than 50% by mass and less than 100% by mass, 70 to 99% by mass, 80 to 99% by mass, Alternatively, it may be 90 to 99% by mass.
• Single fiber F contains a (meth)acrylic acid-based polymer as the (C) component.
• (Meth)acrylic acid-based polymer is a polymer having a (meth)acrylic acid-based compound (a compound having a (meth)acryloyl group) as a monomer unit (a structural unit derived from a (meth)acrylic acid-based compound is a polymer having
• (Meth) acrylic acid-based compounds include (meth) acrylic acid; methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, (meth) acrylic acid- (Meth)acrylic acid esters such as 2-ethylhexyl.
• the (C) component may be a homopolymer of a (meth)acrylic acid-based compound or a copolymer of a (meth)acrylic acid-based compound.
• the (meth)acrylic acid-based compound copolymer may be a copolymer having a plurality of (meth)acrylic acid-based compounds as monomer units. ) It may be a copolymer having a compound different from the acrylic acid-based compound as a monomer unit.
• Component (C) may contain a copolymer of a (meth)acrylic acid-based compound from the viewpoint of easily obtaining excellent spinnability, combability, and voluminousness. as a monomer unit.
• Examples of compounds different from (meth)acrylic acid-based compounds include vinyl chloride, the above-mentioned aromatic vinyl compounds (for example, styrene-based compounds such as styrene), 2-ethylhexyl, and the like.
• Copolymers of (meth)acrylic acid compounds include copolymers of (meth)acrylate and vinyl chloride, and (meth)acrylate and aromatic vinyl compounds (e.g., styrene compounds such as styrene).
• the content of the monomer unit of the (meth)acrylic acid-based compound in the component (C) is based on the entirety of the component (C), from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness.
• Component (C) may have a (meth)acrylic acid ester as a monomer unit from the viewpoint of easily obtaining excellent spinnability, combability and voluminousness, and methyl (meth)acrylate and (meth) ) may have at least one selected from the group consisting of butyl acrylate as a monomer unit. That is, the component (C) may be in a mode having methyl (meth)acrylate as a monomer unit, or in a mode having butyl (meth)acrylate as a monomer unit.
• the content of the (meth)acrylic acid ester monomer unit (the total amount of the acrylic acid ester monomer unit and the methacrylic acid ester monomer unit; the same shall apply hereinafter) provides excellent spinnability, combability and From the viewpoint of easily obtaining a sense of volume, the content may be in the following ranges based on the content of the entirety of the component (C) or the content of the monomer units of the (meth)acrylic acid-based compound.
• the content of the monomer unit of the (meth) acrylic acid ester is 50% by mass or more, 50% by mass or more, 55% by mass or more, 55% by mass or more, 60% by mass or more, 67% by mass or more, 70% by mass or more , 80% by mass or more, 90% by mass or more, more than 90% by mass, 92% by mass or more, 95% by mass or more, 96% by mass or more, 98% by mass or more, 99% by mass or more, 99.5% by mass or more, or It may be substantially 100% by mass.
• the content of the monomer units of methyl (meth)acrylate (the total amount of the monomer units of methyl acrylate and the monomer units of methyl methacrylate; the same shall apply hereinafter) is the total amount of component (C), or Based on the content of the monomer units of the (meth)acrylic acid-based compound, the following ranges may be used.
• the content of the monomer unit of methyl (meth)acrylate is 30% by mass or more, 35% by mass or more, 40% by mass or more, 45% by mass or more, and 50% by mass, from the viewpoint of easily obtaining excellent combability.
• the content of the monomer units of methyl (meth)acrylate is less than 100% by mass, 95% by mass or less, 90% by mass or less, 85% by mass or less, 82% by mass or less, 80% by mass or less, and 79% by mass or less.
• the content of the monomer unit of methyl (meth)acrylate is 30% by mass or more and less than 100% by mass, 40 to 95% by mass, 40 to 90% by mass, 50 to 90% by mass, 60 to 90% by weight, 70-90% by weight, 80-90% by weight, 50-85% by weight, 60-85% by weight, 70-85% by weight, or 80-85% by weight.
• the content of the monomer units of butyl (meth)acrylate (the total amount of the monomer units of butyl acrylate and the monomer units of butyl methacrylate; the same shall apply hereinafter) is the total amount of component (C), or Based on the content of the monomer units of the (meth)acrylic acid-based compound, the following ranges may be used.
• the content of the monomer units of (meth)butyl acrylate is more than 0% by mass, 5% by mass or more, 10% by mass or more, 15% by mass or more, 18% by mass or more, 20% by mass or more, 21% by mass or more , 25 mass % or more, 30 mass % or more, 30 mass % or more, 35 mass % or more, 40 mass % or more, 40 mass % or more, 45 mass % or more, or 50 mass % or more.
• the content of the monomer unit of butyl (meth)acrylate is 70% by mass or less, 65% by mass or less, 60% by mass or less, 55% by mass or less, and 50% by mass, from the viewpoint of easily obtaining excellent combability.
• the content of the monomer unit of butyl (meth)acrylate is more than 0% by mass and 70% by mass or less, 5 to 60% by mass, 10 to 60% by mass, 10 to 50% by mass, 10 ⁇ 40% by weight, 10-30% by weight, 10-20% by weight, 15-50% by weight, 15-40% by weight, 15-30% by weight, or 15-20% by weight.
• component (C) is based on the total content of component (C), or the content of monomeric units of methyl (meth)acrylate based on the content of monomeric units of (meth)acrylic acid-based compounds.
• butyl (meth)acrylate is 30% by mass or more and less than 100% by mass, and the content of monomer units of butyl (meth)acrylate is more than 0% by mass and 70% by mass or less, and methyl (meth)acrylate is 60 to 90% by mass and the content of butyl (meth)acrylate is 10 to 40% by mass.
• the (C) component does not have to have vinyl chloride as a monomer unit.
• the content of vinyl chloride monomer units is 1% by mass or less, less than 1% by mass, 0.1% by mass or less, 0.01% by mass or less, or substantially may be 0% by mass.
• the (C) component may not have (meth)acrylonitrile as a monomer unit, and may not have a vinyl cyanide compound as a monomer unit.
• the content of the monomer units of (meth)acrylonitrile or the content of the monomer units of the vinyl cyanide compound is 10% by mass or less, less than 10% by mass, 1 % by weight or less, less than 1% by weight, 0.1% by weight or less, 0.01% by weight or less, or substantially 0% by weight.
• the component (C) does not have to have a styrene compound as a monomer unit, and it does not have to have an aromatic vinyl compound as a monomer unit.
• the content of the monomer unit of the styrene compound or the content of the monomer unit of the aromatic vinyl compound is 30% by mass or less, 20% by mass or less, or 10% by mass, based on the entire component (C). % or less, less than 10% by weight, less than 1% by weight, less than 1% by weight, 0.1% by weight or less, 0.01% by weight or less, or substantially 0% by weight.
• the weight average molecular weight of component (C) is 10,000 or more, 50,000 or more, 100,000 or more, 100,000 or more, 150,000 or more, 200,000 or more, 300,000 or more, from the viewpoint of easily obtaining excellent combability. More than 300,000, 400,000 or more, 500,000 or more, 600,000 or more, 700,000 or more, 800,000 or more, 900,000 or more, 1 million or more, 1.2 million or more, 1.5 million or more, 2 million or more, 2.5 million or more, 3 million 3.5 million or more, 4 million or more, 4.5 million or more, 5 million or more, 5.5 million or more, 6 million or more, 6.5 million or more, 7 million or more, 7.5 million or more, 8 million or more, or 8.5 million or more good.
• the weight average molecular weight of component (C) may be 10 million or less, 9.5 million or less, 9 million or less, or 8.5 million or less from the viewpoint of easily obtaining excellent spinnability.
• the weight average molecular weight of component (C) is 8 million or less, 7.5 million or less, 7 million or less, 6.5 million or less, 6 million or less, 5.5 million or less, 5 million or less, 4.5 million or less, 4 million or less, 3.5 million or less, 3 million or less, 2.5 million or less, 2 million or less, 1.5 million or less, 1 million or less, 900,000 or less, 800,000 or less, 700,000 or less, 600,000 or less, 500,000 or less, 400,000 or less, or 300,000 or less It's okay.
• the weight average molecular weight of the component (C) is 10,000 to 10,000,000, more than 100,000 to 10,000,000, 200,000 to 10,000,000, 300,000 to 10,000,000, more than 300,000 to 10,000,000, 500,000 to 10 million, 700,000 to 10 million, 1 million to 10 million, 1.5 million to 10 million, 3 million to 10 million, 10,000 to 8.5 million, 10,000 to 6 million, 10,000 to 4.5 million, 10,000 to 4 million , 10,000 to 3 million, 500,000 to 8.5 million, 500,000 to 5 million, 1 million to 6 million, or 3 million to 4.5 million.
• the weight average molecular weight of component (C) can be measured using gel permeation chromatography (GPC) under the following conditions.
• GPC gel permeation chromatography
• the content of component (C) is more than 0% by mass and 8% by mass or less based on the total amount of components (A) and (B). When the content of component (C) is 8% by mass or less, excellent spinnability can be obtained.
• the above-described specific amount of component (C) is used, the mixing (compatibility) of component (A) and component (B) is improved, and the dispersibility of component (A) and component (B) is improved. Therefore, it is presumed that excellent spinnability can be obtained because the ejection from the nozzle hole in spinning is uniformed.
• the factor for obtaining excellent spinnability is not limited to this content.
• the content of component (C) may be within the following ranges based on the total amount of components (A) and (B).
• the content of component (C) is 0.1% by mass or more, 0.2% by mass or more, 0.3% by mass or more, 0.5% by mass or more, and 0% by mass, from the viewpoint of easily obtaining excellent combability.
• the content of component (C) is 7% by mass or less, 6.5% by mass or less, 6% by mass or less, 5.5% by mass or less, or 5% by mass or less from the viewpoint of easily obtaining excellent spinnability.
• the content of component (C) is less than 5% by mass, 4.5% by mass or less, 4% by mass or less, 3.5% by mass or less, 3% by mass or less, 2.5% by mass or less, 2% by mass or less, It may be 1.5% by mass or less, 1% by mass or less, 0.8% by mass or less, 0.5% by mass or less, or 0.3% by mass or less.
• component (C) is 0.1 to 8% by mass, 0.1 to 5% by mass, 0.3 to 5% by mass, 0.5 to 5% by mass, 1 to 5% by mass. %, 0.3-4% by weight, 0.3-3% by weight, 0.3-2% by weight, 0.3-1% by weight, or 0.5-1.5% by weight.
• the weight average molecular weight of the component (C) is within the ranges described above, from the viewpoint of easily obtaining excellent spinnability and combability.
• the weight average molecular weight of component (C) may be 500,000 to 5,000,000.
• the content of the component (C) is within the ranges described above from the viewpoint of easily obtaining excellent spinnability and combability.
• the content of component (C) may be 0.5 to 1.5% by mass based on the total amount of components (A) and (B).
• the single fiber F may contain components other than the (A) component, the (B) component and the (C) component.
• components include polymers other than components (A), (B), and (C) (polyolefins such as polypropylene; polyethylene terephthalate, etc.); antistatic agents; heat stabilizers; lubricants; processing aids; Plasticizers (for example, cyclohexanedicarboxylate-based plasticizers), reinforcing agents, ultraviolet absorbers, antioxidants, fillers, flame retardants, pigments, initial coloring improvers, conductivity-imparting agents, fragrances, and the like.
• the single fiber F may not contain at least one of such components, and may not contain at least one selected from the group consisting of polyolefins (polypropylene, etc.) and polyethylene terephthalate.
• antistatic agents examples include cationic, anionic, and amphoteric antistatic agents.
• the content of the antistatic agent may be 0.01 to 1% by mass based on the total amount of components (A) and (B).
• Thermal stabilizers can be used to adjust thermal decomposition during molding, long-run properties, filament color tone, etc.
• heat stabilizers include Ca—Zn-based heat stabilizers, hydrotalcite-based heat stabilizers, tin-based heat stabilizers, epoxy-based heat stabilizers, ⁇ -diketone-based heat stabilizers, and the like.
• the content of the heat stabilizer may be 0.1 to 5% by mass based on the total amount of components (A) and (B).
• Ca-Zn-based heat stabilizers include zinc stearate, calcium stearate, zinc 12-hydroxystearate, calcium 12-hydroxystearate, and the like.
• hydrotalcite-based heat stabilizers include hydrotalcite compounds.
• hydrotalcite compounds include complex salt compounds composed of magnesium and/or alkali metals and aluminum; complex salt compounds composed of zinc, magnesium and aluminum; and compounds obtained by dehydrating water of crystallization.
• the tin heat stabilizers include mercaptotin heat stabilizers such as dimethyltin mercapto, dimethyltin mercaptide, dibutyltin mercapto, dioctyltin mercapto, dioctyltin mercapto polymer, and dioctyltin mercaptoacetate; maleate tin heat stabilizers such as ate, dioctyltin maleate, dioctyltin maleate polymer; and laurate tin heat stabilizers such as dimethyltin laurate, dibutyltin laurate and dioctyltin laurate.
• mercaptotin heat stabilizers such as dimethyltin mercapto, dimethyltin mercaptide, dibutyltin mercapto, dioctyltin mercapto, dioctyltin mercapto polymer, and diocty
• Epoxy heat stabilizers include epoxidized soybean oil and epoxidized linseed oil.
• ⁇ -diketone heat stabilizers include stearoylbenzoylmethane (SBM), dibenzoylmethane (DBM) and the like.
• Lubricants can be used to reduce friction with the metal surface of processing machines and friction between resins, improve fluidity, and adjust workability.
• Lubricants include metal soap-based lubricants, higher fatty acid-based lubricants, ester-based lubricants, higher alcohol-based lubricants, hydrocarbon-based lubricants, and the like.
• the lubricant content may be 0.2 to 5% by mass based on the total amount of components (A) and (B).
• metallic soap-based lubricants examples include metallic soaps (eg stearates, laurates, palmitates, oleates such as Na, Mg, Al, Ca, and Ba).
• Higher fatty acid lubricants include saturated fatty acids such as stearic acid, palmitic acid, myristic acid, lauric acid and capric acid; unsaturated fatty acids such as oleic acid; and mixtures thereof.
• ester-based lubricants include pentaerythritol-based lubricants, montanic acid wax-based lubricants, lubricants composed of alcohol and fatty acid, and the like.
• Examples of pentaerythritol-based lubricants include monoesters, diesters, triesters, and tetraesters of pentaerythritol or dipentaerythritol and higher fatty acids; and mixtures thereof.
• Examples of montanic acid wax-based lubricants include esters of montanic acid and higher alcohols (stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, oleyl alcohol, etc.).
• Higher alcohol-based lubricants include stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, and oleyl alcohol.
• Hydrocarbon-based lubricants include polyethylene wax, polypropylene wax, and the like.
• the content of the cyclohexanedicarboxylate-based plasticizer in the single fiber F is 1 part by mass or less, less than 1 part by mass, 0.1 part by mass or less, or 0.01 part by mass or less per 100 parts by mass of component (A). , or substantially 0 parts by mass.
• the content of the vinyl chloride-based acrylic graft copolymer in the single fiber F is 1% by mass or less, less than 1% by mass, 0.1% by mass or less, and 0, based on the total amount of the component (A) and the vinyl polymer. .01 mass % or less, or substantially 0 mass %.
• the artificial hair fibers according to the present embodiment may further include single fibers different from the single fibers F, that is, the single fibers F and the single fibers different from the single fibers F. Be prepared.
• a single fiber different from the single fiber F is a fiber that contains two of the components (A), (B) and (C) but does not contain the remaining one of the components (A) and (B). and (C) but do not contain the other two, or fibers that do not contain components (A), (B) and (C).
• Single fibers different from single fibers F may contain polyolefins such as polypropylene; polyethylene terephthalate, and the like.
• the method for producing fibers for artificial hair includes a melt spinning step of obtaining a plurality of single fibers F by melt spinning a resin composition containing components (A), (B) and (C).
• a metal nozzle having a plurality of nozzle holes may be used to extrude the resin composition under the conditions of a cylinder temperature of 140 to 190° C. and a nozzle temperature of 180 ⁇ 15° C. to perform melt spinning.
• a single-screw extruder, a counter-rotating twin-screw extruder, a conical twin-screw extruder, or the like may be used. good.
• the method for producing fibers for artificial hair includes a melt-kneading step of obtaining a resin composition by melt-kneading the components (A), (B) and (C) before the melt-spinning step. Be prepared.
• components (A), (B), and (C) may be stirred and mixed to obtain a powder compound, and then the powder compound may be melt-kneaded to obtain a pellet compound.
• An antistatic agent, a heat stabilizer, a lubricant, and the like may be appropriately mixed during the stirring and mixing of the components (A), (B), and (C).
• a Henschel mixer, super mixer, ribbon blender, or the like can be used for stirring and mixing to obtain a powder compound.
• a Henschel mixer, super mixer, ribbon blender, or the like can be used for melt-kneading to obtain a pellet compound.
• a single-screw extruder, a counter-rotating twin-screw extruder, a conical twin-screw extruder, a co-rotating twin-screw extruder, a co-kneader, a planetary gear extruder, a roll kneader, etc. can be used for stirring and mixing to obtain a powder compound.
• the method for producing fibers for artificial hair may include a winding step for winding the fibers obtained in the melt spinning step after the melt spinning step.
• the fiber obtained in the melt spinning process may be introduced into a heating cylinder (heating cylinder temperature: about 250° C.), instantaneously heat-treated, and then wound up by a take-up machine.
• the method for manufacturing fibers for artificial hair may include a drawing process for drawing the fibers (undrawn fibers) after the winding process.
• the undrawn fibers may be drawn 2 to 4 times with a drawing machine (at 90 to 120° C. in an air atmosphere).
• the method for producing fibers for artificial hair may include a heating step of heat-treating the fibers after the drawing step.
• the fiber may be heat-treated in an air atmosphere using a heat treatment machine until the total length of the fiber is shrunk 0.5 to 0.9 times that before the treatment.
• the heating temperature in the heating step may be 80-120°C, 90-115°C, or 100-110°C.
• the hair decoration product according to this embodiment includes the artificial hair fiber according to this embodiment.
• Examples of hair decoration products include wigs and the like.
• the artificial hair fibers in the hair decoration product according to this embodiment may be in any state before or after the gear processing for crimping the artificial hair fibers.
• Vinyl chloride polymer (vinyl chloride homopolymer, manufactured by Taiyo Vinyl Co., Ltd., trade name: TH-1000), aromatic vinyl polymer in Table 1 or Table 2, (meth)acrylic acid in Table 1 or Table 2 Polymer, antistatic agent (manufactured by NOF Corporation, trade name: New Elegan ASK) 0.5 parts by mass, hydrotalcite-based complex salt compound (manufactured by Nissan Chemical Industries, Ltd., trade name: CP-410A) 3 mass part, epoxidized soybean oil (manufactured by Asahi Denka Kogyo Co., Ltd., trade name: O-130P) 0.5 parts by mass, and ester-based lubricant (manufactured by Riken Vitamin Co., Ltd., trade name: EW-100) 0.8 mass A resin composition consisting of parts was prepared. The amounts of vinyl chloride polymer, aromatic vinyl polymer, and (meth)acrylic acid polymer used (total amount of
• aromatic vinyl polymer and (meth)acrylic acid polymer the following polymers were used.
• (Aromatic vinyl polymer) B1 A polymer containing 68% by mass of styrene monomer units and 32% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: GR-AT-6S)
• B2 A polymer containing 75% by mass of styrene monomer units and 25% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: GR-AT-5S)
• B3 A polymer containing 82% by mass of styrene monomer units and 18% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-C800)
• B4 A polymer containing 86% by mass of styrene monomer units and 14% by mass of acrylonitrile monomer units (prepared in-house)
• B5 A polymer containing 64% by mass of styrene monomer
• ((Meth)acrylic acid-based polymer) C1: A polymer containing 85% by mass of methyl methacrylate monomer units and 15% by mass of butyl acrylate (Mitsubishi Chemical Corporation, trade name: Metabrene P-551A, weight average molecular weight: 1,500,000)
• C2 A polymer containing 80% by mass of methyl methacrylate monomer units and 20% by mass of butyl acrylate (Mitsubishi Chemical Corporation, trade name: Metabrene P-530A, weight average molecular weight: 3,000,000)
• C3 A polymer containing 79% by mass of methyl methacrylate monomer units and 21% by mass of butyl acrylate (Mitsubishi Chemical Corporation, trade name: Metabrene P-531A, weight average molecular weight: 4,000,000)
• C4 Polymer having 70% by mass of methyl methacrylate monomer units and 30% by mass of butyl acrylate (Kaneka Corporation, trade name: Kaneace PA-60, weight average
• pellets were produced by compounding with an extruder having a diameter (aperture) of 40 mm at a cylinder temperature of 130 to 170°C. Next, using an extruder with a nozzle cross-sectional area of 0.06 mm 2 , a round shape, and 120 holes, a cylinder temperature of 140 to 190 ° C. and a nozzle temperature of 180 ° C., an extrusion rate of 10 kg / hour and a diameter of 30 mm. The pellets described above were melt spun.
• spinnability As the spinnability, the state of occurrence of yarn breakage per hour during the production of the fiber A (undrawn fiber) by melt spinning in the production of the artificial hair fiber was visually observed. Spinnability was evaluated according to the following criteria. A: Thread breakage once B: Thread breakage 2-3 times C: Thread breakage 4 times or more
• combability The combability was evaluated by the following procedure. First, a fiber bundle (number: 12,000, length: 10 m, mass: 800 g) of single fibers in the artificial hair fibers described above was subjected to gear processing (treatment in the length direction of the fiber, depth of the groove of the gear waveform: 2.5 mm, gear pitch: 2.5 mm, surface temperature: 90° C., processing speed: 1.0 m/min) to obtain a fiber bundle of fibers for evaluation.
• gear processing treatment in the length direction of the fiber, depth of the groove of the gear waveform: 2.5 mm, gear pitch: 2.5 mm, surface temperature: 90° C., processing speed: 1.0 m/min
• the resistance force [unit: gf] when combed at a moving speed of 10 mm / sec and a moving distance of 100 mm was measured with a static and dynamic friction measuring machine (manufactured by TRINITY-LAB) , trade name “TL201Tt”). It was judged that the smaller the resistance, the better the combability.
• the voluminousness was evaluated by the following procedure. First, a fiber bundle (number: 12,000, length: 10 m, mass: 800 g) of single fibers in the artificial hair fibers described above was subjected to gear processing (treatment in the length direction of the fiber, depth of the groove of the gear waveform: 2.5 mm, gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m / min) to obtain a fiber for evaluation, and then cut this evaluation fiber to a length of 100 mm to obtain a fiber got a piece
• the 56 cc container (100 mm x 14 mm x 40 mm) was then filled with fiber pieces without any load.

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• 2022
  • 2022-10-25 JP JP2023576626A patent/JPWO2023145171A1/ja not_active Withdrawn
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