WO2021186852A1 - Artificial hair fibers, head accessory including same, and method for manufacturing same - Google Patents

Artificial hair fibers, head accessory including same, and method for manufacturing same Download PDF

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Publication number
WO2021186852A1
WO2021186852A1 PCT/JP2021/000243 JP2021000243W WO2021186852A1 WO 2021186852 A1 WO2021186852 A1 WO 2021186852A1 JP 2021000243 W JP2021000243 W JP 2021000243W WO 2021186852 A1 WO2021186852 A1 WO 2021186852A1
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Prior art keywords
fiber
artificial hair
resin
fibers
resin emulsion
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PCT/JP2021/000243
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French (fr)
Japanese (ja)
Inventor
穴原賢
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株式会社カネカ
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Priority to JP2022508077A priority Critical patent/JPWO2021186852A1/ja
Publication of WO2021186852A1 publication Critical patent/WO2021186852A1/en
Priority to US17/882,176 priority patent/US20220369747A1/en

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    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41GARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00Wigs
    • A41G3/0075Methods and machines for making wigs
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41GARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00Wigs
    • A41G3/0083Filaments for making wigs
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41GARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00Wigs
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41GARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G5/00Hair pieces, inserts, rolls, pads, or the like; Toupées
    • A41G5/004Hair pieces
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/59Polyamides; Polyimides
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08Processes in which the treating agent is applied in powder or granular form
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/18Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/22Polymers or copolymers of halogenated mono-olefins
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32Polyesters
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/30Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34Polyamides

Definitions

  • the present invention relates to an artificial hair fiber that can be used as a substitute for human hair, a headdress product containing the fiber, and a method for producing the same. More specifically, the present invention relates to an artificial hair fiber having a gloss that is easy to comb and has a luster close to that of human hair, a headdress product containing the same, and a method for producing the same.
  • Patent Document 1 polyester fibers containing a brominated epoxy flame retardant and an acidic phosphoric acid compound have been developed.
  • Patent Document 1 by adding an acidic phosphoric acid compound to a polyester resin, the viscosity of the polyester resin is lowered, and further, the dispersibility of the brominated epoxy flame retardant blended in the polyester resin is lowered. It is possible to develop undulations on the surface layer of the fiber after spinning, and as a result, the gloss of the fiber can be reduced.
  • the present invention provides an artificial hair fiber having excellent combability and a gloss close to that of human hair, a hair product containing the same, and a method for producing the same.
  • the present invention is, in one or more embodiments, an artificial hair fiber, wherein resin particles are adhered to the surface of the artificial hair fiber by 0.3% omf or more and 1.1% omf or less.
  • the resin particles relate to artificial hair fibers having an average particle size of 1 ⁇ m or more and 20 ⁇ m or less.
  • the present invention is the method for producing the artificial hair fiber in one or more embodiments, which comprises a step of applying a resin emulsion to the surface of the artificial hair fiber, and the average particle size of the resin emulsion is 350 nm or more.
  • the present invention relates to a method for producing an artificial hair fiber, wherein the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
  • the present invention relates to a headdress product comprising the artificial hair fiber in one or more embodiments.
  • the present invention it is possible to provide an artificial hair fiber having excellent combability and a gloss close to that of human hair, and a hair product containing the same. According to the production method of the present invention, it is possible to obtain fibers for artificial hair having excellent combability and gloss similar to that of human hair.
  • FIG. 1 is a scanning electron micrograph (1500 times) of the fiber surface of the artificial hair fiber of Example 1 of the present invention.
  • FIG. 2 is a scanning electron micrograph (1500 times) of the fiber surface of Comparative Example 1 of the present invention.
  • the present inventor adheres a specific amount of resin particles having a specific particle size to the surface of artificial hair fibers to improve combability. , It was found that the gloss of the fiber surface can be suppressed. By the presence of the resin particles having the specific particle size on the fiber surface, appropriate irregularities are easily formed on the fiber surface, the gloss is reduced without hindering the combability, and the gloss is close to that of human hair. It is presumed that artificial hair fibers can be obtained. In particular, by applying a resin emulsion having a predetermined particle size to the surface of fibers for artificial hair, the resin particles easily adhere to the fiber surface, and the resin adheres as aggregate particles having a predetermined particle size. It is presumed that by forming appropriate irregularities on the fiber surface, the gloss can be reduced and the gloss close to that of human hair can be obtained without hindering the combability.
  • the resin particles are attached to the surface of the artificial hair fiber by 0.3% omf (on the mass of fiber) or more and 1.1% omf or less.
  • the amount of the resin particles adhered is preferably 0.35% omf or more and 1.0% omf or less, and more preferably 0.4% omf or more and 0.9% omf or less.
  • the amount of resin particles adhered is less than 0.3% omf, the amount of resin adhering to the fiber surface is small, so that the gloss suppressing effect becomes insufficient. If the amount of resin particles adhered is larger than 1.1% omf, the amount of resin adhered becomes excessive, and the tactile sensation and combing are deteriorated.
  • the amount of resin particles adhering to the surface of the artificial hair fiber can be measured as follows. Alternatively, as will be described later, it may be calculated based on the amount of the resin emulsion applied to the surface of the artificial hair fiber. ⁇ Amount of resin particles attached> 35 mL of a mixed liquid having a volume ratio of cyclohexane and ethanol of 1: 1 was used as an extract, 2.0 g of fibers were immersed in the extract, the resin adhering to the fiber surface was extracted, and the extract was evaporated to dryness. The weight of the remaining component is defined as the amount of resin particles adhering to the fiber.
  • the average particle size of the resin particles is 1 ⁇ m or more and 20 ⁇ m or less.
  • the average particle size of the resin particles is preferably 1.5 ⁇ m or more and 15 ⁇ m or less, and more preferably 2 ⁇ m or more and 10 ⁇ m or less. If the average particle size of the resin particles is less than 1 ⁇ m, unevenness is less likely to be formed on the fiber surface, and the gloss suppressing effect becomes insufficient. If the average particle size of the resin particles exceeds 20 ⁇ m, the resin particles are too large, and the tactile sensation and combing are deteriorated.
  • the average particle size of the resin particles on the surface of the artificial hair fiber can be measured as follows. ⁇ Average particle size of resin particles> An image obtained by magnifying the fiber surface 1000 times with a scanning electron microscope is taken, the particle diameters of the 10 resin particles observed in the field of view are observed, and the average value thereof is taken as the average particle diameter of the resin particles.
  • the resin particles are preferably solid at room temperature.
  • the normal temperature in the present invention means 10 ° C. or higher and 30 ° C. or lower.
  • the resin particles preferably contain one or more resins selected from the group consisting of polyurethane-based resins and polyamide-based resins from the viewpoint of enhancing the gloss suppressing effect.
  • the polyurethane-based resin is not particularly limited, and examples thereof include aliphatic polyurethanes and aromatic polyurethanes.
  • the polyamide-based resin is not particularly limited, and examples thereof include a polyamide elastomer and a polymer obtained by copolymerizing polyamide with other components.
  • the resin particles may contain other types of resins as long as the glossiness of the fiber surface is not impaired.
  • examples of other types of resins include polyoxyalkyl and dimethylsiloxane.
  • the amount of adhesion of other types of resins is preferably 0.05% omf or more and 0.8% omf or less.
  • the artificial hair fiber is not particularly limited, and examples thereof include polyester fiber, polyvinyl chloride fiber, polyamide fiber, polyacrylic fiber, acrylonitrile fiber, and polyphenylene sulfide fiber.
  • the polyester fiber is a fiber formed of a polyester resin composition.
  • a polyester-based artificial hair fiber can be formed by melt-spinning a polyester-based resin composition.
  • the polyester resin composition is usually melt-kneaded and then melt-spun.
  • the polyester resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardants, lubricants, dulling agents, pigments for coloring and the like. ..
  • the polyamide fiber is a fiber formed of a polyamide resin composition.
  • the polyamide-based resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like, in addition to the polyamide-based resin. ..
  • the polyvinyl chloride-based fiber is a fiber formed of a polyvinyl chloride-based resin composition.
  • the polyvinyl chloride resin composition contains one or more additives selected from the group consisting of plasticizers, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like. It may be included as appropriate.
  • Acrylonitrile-based fibers refer to polyacrylonitrile fibers and modacrylic fibers.
  • the polyacrylonitrile fiber is a fiber made from a polyacrylonitrile resin containing 85% by weight or more and 100% by weight or less of acrylonitrile and 15% by weight or less of other components, and the modaacrylic fiber is 35% by weight or more and 85% by weight of acrylonitrile. It is a fiber made of modaacrylic resin containing less than 15% by weight and 65% by weight or less of other components.
  • the polyacrylonitrile fiber can be formed of a polyacrylonitrile resin composition.
  • the polyacrylonitrile resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardant aids, dulling agents, dyes, pigments, etc., in addition to the polyacrylonitrile resin.
  • the moda acrylic fiber can be formed of a moda acrylic resin composition.
  • the moda acrylic resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardants, dulling agents, dyes, pigments, etc., in addition to the moda acrylic resin.
  • the polyphenylene sulfide-based fiber is a fiber formed of a polyphenylene sulfide-based resin composition.
  • the polyphenylene sulfide-based resin composition may appropriately contain one or more additives selected from the group consisting of polyphenylene sulfide-based resins, plasticizers, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like.
  • the artificial hair fiber may be a non-crimped raw thread-like fiber.
  • the fiber for artificial hair preferably has a fineness of 10 to 100 dtex, more preferably 20 to 90 dtex, and further preferably 35 to 80 dtex from the viewpoint of being suitable for artificial hair.
  • the cross-sectional shape of the artificial hair fiber is not particularly limited, and examples thereof include a circular shape, an elliptical shape, and an irregular shape, such as a horseshoe shape, a C shape, and a Y shape.
  • the artificial hair fiber can be produced by a conventionally known method.
  • a melt spinning method is usually used.
  • the artificial hair fiber is composed of a thermoplastic resin composition such as a polyester resin composition
  • the thermoplastic resin composition is melt-kneaded using various general kneaders to pelletize and then melt.
  • fibers for artificial hair can be produced. It is also possible to control the fineness by cooling the spun yarn in a water tank containing cooling water.
  • the temperature and length of the heating cylinder, the temperature and spray amount of the cooling air, the temperature of the cooling water tank, the cooling time and the take-up speed can be appropriately adjusted according to the discharge amount of the polymer and the number of nozzle holes.
  • the temperature of the extruder, gear pump, nozzle, etc. is set to 250 ° C. or higher and 300 ° C. or lower, melt spinning is performed, the spun yarn is passed through a heating cylinder, and then the polyester resin is prepared.
  • a spun yarn (undrawn yarn) is obtained by cooling below the glass transition point and taking up at a speed of 50 m / min or more and 5000 m / min or less.
  • the spun yarn is heat-drawn.
  • the stretching may be carried out by either a two-step method in which the spun yarn is wound once and then stretched, or a direct spun drawing method in which the spun yarn is continuously stretched without being wound.
  • the thermal stretching is carried out by a one-step stretching method or a two-stage or more multi-step stretching method.
  • a heating roller, a heat plate, a steam jet device, a hot water tank, or the like can be used, and these can be used in combination as appropriate.
  • the artificial hair fiber is coated, it may be used as it is. If the artificial hair fibers are not dyed, they can be dyed.
  • the pigments, dyes, auxiliaries and the like used for dyeing those having weather resistance and flame retardancy can also be used.
  • the moda acrylic fiber can be produced by a conventionally known method.
  • the modacrylic fiber can usually be obtained by wet spinning a spinning liquid in which a modacrylic resin is dissolved in an organic solvent.
  • the organic solvent include dimethyl sulfoxide (DMSO), dimethylacetamide (DMAc) and N, N-dimethylformamide (DMF).
  • the wet spinning may include a coagulation step, a washing step and a drying step. Further, a bath stretching step performed before the water washing step or after the water washing step may be included. In addition, an oil agent application step performed before the drying step may be included. Further, a stretching step and a heat relaxation treatment step performed after the drying step may be included.
  • the artificial hair fiber includes all artificial hair fibers such as polyester fiber, polyamide fiber, polyvinyl chloride fiber, acrylonitrile fiber, and polyphenylene sulfide fiber.
  • various additives such as heat resistant agents, light stabilizers, fluorescent agents, antioxidants, antioxidants, pigments, plasticizers, and lubricants can be contained.
  • a pigment By containing a pigment, a dyed fiber can be obtained.
  • an oil agent such as a fiber surface treatment agent or a softener can be used to adjust the tactile sensation and texture to bring the hair closer to human hair.
  • These fiber surface treatment agents and softeners may be mixed with a resin emulsion for the purpose of reducing gloss and applied, or may be applied separately.
  • the resin emulsion means a dispersion-based solution in which a resin is dispersed in water using an emulsifier or the like.
  • the emulsion resin particles are more likely to adhere to the fiber surface than by applying the resin particles alone, and the emulsion resin particles form aggregates on the fiber surface to form aggregates on the fiber surface. It is presumed that unevenness is formed by the resin particles and a gloss close to that of human hair can be obtained.
  • the average particle size of the resin emulsion is 350 nm or more. When the average particle size of the resin emulsion is less than 350 nm, the resin emulsion particles do not aggregate on the fiber surface and form a uniform film on the fiber surface, which has the effect of diffusely reflecting light and reducing the gloss of the fiber surface. It is estimated that it will become smaller.
  • the average particle size of the resin emulsion is preferably 400 nm or more and 1000 nm or less, and more preferably 500 nm or more and 900 nm or less.
  • the average particle size of the resin emulsion refers to the particle size of the resin particles dispersed in the emulsion, and the method for measuring the average particle size is not particularly limited, but the average particle size can be measured by, for example, a dynamic scattering method.
  • the resin forms an emulsion with water as a solvent, and the resin particles when removed by evaporating the water are preferably solid at room temperature.
  • the resin particles are liquid at room temperature, the resin emulsion is easily applied uniformly to the fiber surface, and it is difficult to form aggregates on the fiber surface, so that the effect of diffusely reflecting light is not exhibited, and therefore the gloss is reduced. It is estimated that it will be difficult.
  • the resin emulsion is not particularly limited, but from the viewpoint that the resin particles are solid at room temperature and it is easy to form appropriate irregularities on the fiber surface, for example, a polyurethane-based resin emulsion containing a polyurethane-based resin or a polyamide-based resin containing a polyamide-based resin.
  • a polyurethane-based resin emulsion containing a polyurethane-based resin or a polyamide-based resin containing a polyamide-based resin examples include emulsions.
  • the polyurethane-based resin is not particularly limited, and examples thereof include aliphatic polyurethane and aromatic polyurethane.
  • the polyamide-based resin is not particularly limited, and examples thereof include a polyamide elastomer and a polymer obtained by copolymerizing polyamide with other components.
  • the resin emulsion may contain, in addition to the polyurethane-based resin and the polyamide-based resin, other types of resins as long as the glossiness of the fiber surface is not impaired.
  • the resin emulsion can be adjusted by a known method.
  • a coagulation method in which an emulsifier or the like is added from a uniform solution state in which a resin is dissolved to disperse emulsion particles
  • a dispersion method in which droplets are finely dispersed by stirring from a dispersed state, or an emulsifier is present.
  • examples thereof include an emulsion polymerization method in which a polymerization reaction is carried out underneath to form emulsion particles at the same time as polymerization.
  • a cationic, anionic, or nonionic surfactant can be appropriately used according to the properties of the resin.
  • the viscosity of the resin emulsion is not particularly limited, but for example, it is preferably 0.1 mPa ⁇ s or more and 1000 mPa ⁇ s or less, and 50 mPa ⁇ s or more and 900 mPa ⁇ s at 30 ° C. from the viewpoint that it can be uniformly applied to the fiber surface. It is more preferably 100 mPa ⁇ s or more and 800 mPa ⁇ s or less.
  • the viscosity in the present invention refers to a value measured with a B-type viscometer.
  • the pH of the resin emulsion is preferably in the range of 4 or more and 9 or less from the viewpoint of less damage to the fiber surface and not agglomerating other surface treatment agents.
  • the resin emulsion a commercially available one may be used.
  • a commercially available resin emulsion may be used as it is, or may be appropriately diluted with water before use.
  • two or more resin emulsions may be used.
  • two or more kinds of resin emulsions may be mixed in advance and then attached to the fibers, or various resin emulsions may be sequentially attached to the fibers.
  • an additive such as a thickener may be added to the resin emulsion as long as the physical properties are not impaired.
  • the step of applying the resin emulsion to the fiber surface is not particularly limited, but a method similar to various methods similar to the method of applying the oil agent used for the artificial hair fiber can be used.
  • a method of bringing a fiber into contact with a roll containing a resin emulsion or a solution obtained by diluting the resin emulsion with water on the surface a method of dropping a resin emulsion or a solution obtained by diluting the resin emulsion with water from the upper part of the fiber, a resin emulsion.
  • a method of immersing the fibers in a solution obtained by diluting the resin emulsion with water can be mentioned.
  • the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
  • the resin emulsion easily adheres to the fiber surface as resin particles having an average particle diameter of 1 ⁇ m or more and 20 ⁇ m or less, and can exhibit a gloss suppressing effect while maintaining good combability.
  • the coating amount of the resin emulsion is preferably 0.35% omf or more and 1.0% omf or less, and more preferably 0.4% omf or more and 0.9% omf or less in terms of solid content.
  • the resin emulsion may be applied to the fiber surface and then dried.
  • the drying conditions are not particularly limited, and can be appropriately performed depending on the type of fiber or resin emulsion.
  • the drying temperature may be 80 ° C. or higher and 180 ° C. or lower
  • the drying time may be 0.5 minutes or longer and 15 minutes or lower.
  • the artificial hair fiber can be used alone as artificial hair. Alternatively, it can be used as an artificial hair product in combination with other fiber materials for artificial hair and natural fibers such as human hair and animal hair.
  • the headdress product formed by using the artificial hair fiber of the present invention has a natural luster even when worn.
  • the headdress product is not particularly limited, and examples thereof include hair wigs, wigs, weaving, hair extensions, blade hairs, hair accessories, and doll hairs.
  • the measurement / evaluation directions used in the examples and comparative examples are as follows.
  • ⁇ Average particle size of resin emulsion> The average particle size of the resin emulsion was determined by a dynamic light scattering method for an aqueous solution obtained by diluting the resin emulsion with water so that the solid content concentration was 1% by weight using ELSZ-1000 manufactured by Otsuka Electronics Co., Ltd.
  • ⁇ Viscosity of resin emulsion> The viscosity of the resin emulsion at a temperature of 30 ° C. was measured using a digital viscometer DV2T manufactured by Eiko Seiki Co., Ltd.
  • ⁇ pH of resin emulsion> Using the pH measuring device D73S manufactured by HORIBA, Ltd., the pH of the solution obtained by diluting the resin emulsion 10-fold with water was measured. ⁇ Amount of resin particles attached> The amount of solids attached to the resin emulsion was defined as the amount of resin particles attached to the fiber surface. ⁇ Average particle size of resin particles> The fiber surface was observed with a scanning electron microscope (JCM6000 manufactured by JEOL Ltd.) at an observation magnification of 1000 times, and the average size of 10 resin particles observed on the fiber surface was measured with length measuring software, and the average was measured. The value was taken as the average particle size of the resin particles.
  • ⁇ Gloss> Using a tow filament having a length of 30 cm and a total fineness of 100,000 dtex, the gloss was visually judged under the following criteria under sunlight. A: It is equivalent to the luster of human hair. B: It is almost the same as the luster of human hair. C: There is a difference from the luster of human hair, and there is a sense of discomfort. ⁇ Combability> The combability was evaluated by bundling artificial hair fibers into a length of 300 mm and a weight of 2 g, and evaluating the resistance and entanglement of the fibers when the comb was passed through the fiber bundle.
  • Each raw material is dried to a water content of 100 ppm or less, and 100 parts by weight of polyester resin (polyethylene terephthalate, A-12, manufactured by EAST WEST) and 20 parts by weight of brominated epoxy flame retardant (SR-T20000, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.) , 2 parts by weight of sodium antimonate (SAA, manufactured by Nihon Seiko Co., Ltd.) and 0.3 parts by weight of a dispersant (Wax Composite G431L, manufactured by Clariant Japan).
  • polyester resin polyethylene terephthalate, A-12, manufactured by EAST WEST
  • SR-T20000 brominated epoxy flame retardant
  • SAA sodium antimonate
  • SAA manufactured by Nihon Seiko Co., Ltd.
  • a dispersant Wix Composite G431L, manufactured by Clariant Japan
  • the obtained polyester-based resin composition was supplied to a twin-screw extruder (manufactured by Japan Steel Works, Ltd., trade name "TEX44”), melt-kneaded at a barrel set temperature of 270 ° C., and pelletized.
  • the obtained pellets were dried to a moisture content of 100 ppm or less.
  • the dried pellets are supplied to a melt spinning machine (manufactured by Shinko Machinery Co., Ltd., trade name "SV30”), and have a cocoon-shaped cross-section nozzle hole having a barrel set temperature of 270 ° C. and a flatness ratio of 1.4: 1.
  • the molten polymer was discharged from the spinneret, air-cooled with a cooling air at 20 ° C., and wound at a speed of 100 m / min to obtain an undrawn yarn.
  • the obtained undrawn yarn was stretched 3.1 times using a heat roll heated to 75 ° C., heat-treated with a heat roll heated to 205 ° C., and wound at a speed of 30 m / min to obtain a single fiber fineness.
  • a polyester-based artificial hair fiber (multifilament) of about 60 dtex was obtained.
  • a modal acrylic resin composed of 46% by weight of acrylonitrile, 52.0% by weight of vinyl chloride, and 2.0% by weight of styrene sulfonic acid was used at 20 ° C. and 62% by weight using a spinning nozzle (hole diameter 0.3 mm, number of holes 1250).
  • a spinning nozzle hole diameter 0.3 mm, number of holes 1250.
  • an oil agent tank (60) in which a mixture of moda acrylic fibers (fatty acid ester-based oil agent and polyoxyethylene-based surfactant) and 0.5 parts by weight of dimethyl sulfone added to 100 parts by weight of the oil agent is introduced.
  • moda acrylic fibers fatty acid ester-based oil agent and polyoxyethylene-based surfactant
  • dimethyl sulfone added to 100 parts by weight of the oil agent.
  • ⁇ Manufacturing example 3 100 parts by weight of vinyl chloride homopolymer (manufactured by Kaneka Corporation, product name "S-1001"), 1.4 parts by weight of vinyl chloride-vinyl acetate copolymer (manufactured by Kaneka Corporation, product name "K1F"), plasticizer 0. 9 parts by weight, 1.1 parts by weight of the heat stabilizer, 2.93 parts by weight of the processing aid and 0.88 parts by weight of the lubricant were added, and the mixture was stirred and mixed with a Henschel mixer to obtain a polyvinyl chloride resin compound.
  • the compound was put into a hopper of a single-screw extruder having a diameter of 40 mm, and the compound was extruded and melt-spun in a range of a cylinder temperature of 170 ° C. and a nozzle temperature of 180 ⁇ 15 ° C.
  • a cocoon-shaped nozzle was used.
  • the extruded filament was heat-treated in a heating cylinder (atmosphere at 330 ° C.) provided directly under the nozzle for about 0.5 to 1.5 seconds, and the undrawn yarn after the heat treatment was wound around the bobbin by a take-up roll.
  • the undrawn yarn was drawn about 2 to 4 times through a hot air circulation box whose temperature was adjusted to 110 ° C.
  • a 38% relaxation treatment was continuously carried out in a hot air circulation box whose temperature was adjusted to 110 ° C., and the multifilaments were wound to obtain polyvinyl chloride fibers (single fiber fineness of about 72 dtex).
  • Example 1 The polyester fiber obtained in Production Example 1 is immersed in a polyurethane resin emulsion containing a polyurethane resin and having an average particle size, viscosity and pH as shown in Table 1, and then dehydrated to apply a solid content. By adjusting the amount to 0.4% omf, fibers for artificial hair in which polyurethane-based resin particles adhered 0.4% omf to the fiber surface were produced.
  • Example 2 A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of solid content of the resin emulsion applied was 0.6% omf and the polyurethane resin particles adhered to the fiber surface by 0.6% omf. bottom.
  • Example 3 Fibers for artificial hair were produced in the same manner as in Example 1 except that a polyamide resin emulsion containing a polyamide resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
  • Example 4 A fiber for artificial hair was produced in the same manner as in Example 3 except that the amount of solid content of the resin emulsion applied was 0.6% omf and the polyamide-based resin particles adhered to the fiber surface by 0.6% omf. bottom.
  • Example 5 A fiber for artificial hair was produced in the same manner as in Example 1 except that the moda acrylic fiber obtained in Production Example 2 was used.
  • Example 6 A fiber for artificial hair was produced in the same manner as in Example 3 except that the moda acrylic fiber obtained in Production Example 2 was used.
  • Example 7 A fiber for artificial hair was produced in the same manner as in Example 1 except that the moda acrylic fiber obtained in Production Example 3 was used.
  • Example 8 A fiber for artificial hair was produced in the same manner as in Example 3 except that the moda acrylic fiber obtained in Production Example 3 was used.
  • Example 1 A fiber for artificial hair was produced in the same manner as in Example 1 except that a polyester resin emulsion containing a polyester resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
  • Comparative Example 2 Fibers for artificial hair were produced in the same manner as in Example 1 except that a polyurethane resin emulsion containing a polyurethane resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
  • Fibers for artificial hair were produced in the same manner as in Example 1 except that a silicone-based resin emulsion containing a silicone-based resin and having an average particle size, viscosity, and pH as shown in Table 1 was used.
  • Fibers for artificial hair were prepared in the same manner as in Example 1 except that a silica suspension was used instead of the resin emulsion.
  • Example 6 A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of the solid content of the resin emulsion applied was 0.2% omf and the polyurethane resin particles adhered to the fiber surface by 0.2% omf. bottom.
  • Example 7 A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of the solid content of the resin emulsion applied was 1.2% omf and the polyurethane resin particles adhered to the fiber surface by 1.2% omf. bottom.
  • Comparative Example 8 A fiber for artificial hair was produced in the same manner as in Comparative Example 1 except that the moda acrylic fiber of Production Example 2 was used.
  • Comparative Example 9 A fiber for artificial hair was produced in the same manner as in Comparative Example 7 except that the moda acrylic fiber of Production Example 2 was used.
  • Comparative Example 10 A fiber for artificial hair was produced in the same manner as in Comparative Example 1 except that the moda acrylic fiber of Production Example 3 was used.
  • FIG. 1 shows an SEM photograph of the fiber surface for artificial hair obtained in Example 1.
  • FIG. 2 shows an SEM photograph of the fiber surface for artificial hair obtained in Comparative Example 1.
  • agglomerates (resin particles) having a predetermined size are seen on the fiber surface, and it is considered that the effect of suppressing gloss is exhibited.
  • Comparative Examples 1 to 3 in which the particle size of the resin particles is small, the particles adhere so as to cover the fiber surface, no clear unevenness is observed, and the result is that the resin particles have a high luster peculiar to the artificial hair fiber. rice field. Further, in Comparative Examples 4 to 5, since the inorganic particles dispersed in the suspension adhered to the fiber surface, the tactile sensation was stubborn, and the appearance and combing were poor. Further, in Comparative Example 6, the amount of particles adhering to the fiber surface was too small, so that a sufficient gloss suppressing effect could not be obtained. In Comparative Example 7, the amount of resin particles adhering to the fiber surface was excessive, resulting in deterioration of combability.
  • the present invention is not particularly limited, but may include, for example, one or more embodiments described below.
  • Fiber for artificial hair Resin particles are attached to the surface of the artificial hair fiber in an amount of 0.3% omf or more and 1.1% omf or less.
  • the resin particles are fibers for artificial hair having an average particle diameter of 1 ⁇ m or more and 20 ⁇ m or less.
  • the artificial hair fiber according to [1] wherein the resin particles are solid at room temperature.
  • the artificial hair fiber according to [1] or [2], wherein the resin particles contain one or more resins selected from the group consisting of polyurethane-based resins and polyamide-based resins.
  • the artificial hair fibers include one or more selected from the group consisting of polyester fibers, polyvinyl chloride fibers, acrylonitrile fibers, polyamide fibers, and polyphenylene sulfide fibers [1] to [ 3] The artificial hair fiber according to any one of. [5] The method for producing an artificial hair fiber according to any one of [1] to [4]. Including the step of applying a resin emulsion to the surface of artificial hair fibers, The average particle size of the resin emulsion is 350 nm or more, and the resin emulsion has an average particle size of 350 nm or more.
  • a method for producing an artificial hair fiber wherein the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
  • a headdress product comprising the fiber for artificial hair according to any one of [1] to [4].
  • the headdress product according to [8], wherein the headdress product includes one selected from the group consisting of hair wigs, wigs, weaving, hair extensions, blade hair, hair accessories and doll hair.

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Abstract

The present invention pertains, in one or more embodiments, to artificial hair fibers characterized in that resin particles adhere in an amount of 0.3-1.1% omf inclusive to the surface of the artificial hair fibers, the resin particles having an average particle diameter of 1-20 µm inclusive. In one or more embodiments of the present invention, the artificial hair fibers can be produced by applying a resin emulsion having an average particle diameter of 350 nm or more to the surface of the fibers so as to reach 0.3-1.1% omf inclusive in terms of the solid content. The present invention thereby provides: artificial hair fibers that have excellent combability and glossiness near that of real hair; a head accessory including the same; and a method for manufacturing the artificial hair fibers.

Description

人工毛髪用繊維、それを含む頭飾製品及びその製造方法Fibers for artificial hair, headdress products containing them, and their manufacturing methods
 本発明は、人毛の代替品として使用できる人工毛髪用繊維、それを含む頭飾製品及びその製造方法に関する。詳細には、櫛通りが良く、人毛に近い光沢を有する人工毛髪用繊維、それを含む頭飾製品及びその製造方法に関する。 The present invention relates to an artificial hair fiber that can be used as a substitute for human hair, a headdress product containing the fiber, and a method for producing the same. More specifically, the present invention relates to an artificial hair fiber having a gloss that is easy to comb and has a luster close to that of human hair, a headdress product containing the same, and a method for producing the same.
 かつら、ヘアーウィッグ、付け毛、ヘアーバンド、ドールヘアーなどの頭飾製品においては、従来、人毛が使用されていたが、近年、人毛の入手が困難になってきている。したがい、合成繊維を用いた人工毛髪用繊維、例えば、モダアクリル繊維などのアクリロニトリル系繊維、ポリ塩化ビニル系繊維、ポリエステル系繊維などへの代替が進んでいる。しかし、人工毛髪用合成繊維は、表面の光沢が強く、頭飾製品、特にヘアーウィッグ、かつらなどの頭髪製品に用いた場合、頭髪全体として違和感があり、人工毛髪用合成繊維の光沢を改善する方法が種々検討されている。例えば、特許文献1では、臭素化エポキシ系難燃剤及び酸性のリン酸化合物を含有したポリエステル系繊維が開発されている。特許文献1では、酸性のリン酸化合物をポリエステル系樹脂に添加することでポリエステル樹脂の粘度を低下させ、さらに当該ポリエステル系樹脂に配合されている臭素化エポキシ難燃剤の分散性を低下させることで、紡糸後の繊維表層部に起伏を発現させることができ、結果的に繊維の光沢を低減できる。 Human hair has traditionally been used in headdress products such as wigs, hair wigs, hair attachments, hair bands, and doll hair, but in recent years it has become difficult to obtain human hair. Therefore, artificial hair fibers using synthetic fibers, for example, acrylonitrile fibers such as moda acrylic fibers, polyvinyl chloride fibers, polyester fibers, and the like are being replaced. However, synthetic fibers for artificial hair have a strong surface gloss, and when used for hair ornament products, especially hair products such as hair wigs and wigs, there is a sense of discomfort in the entire hair, and a method for improving the gloss of synthetic fibers for artificial hair. Have been studied in various ways. For example, in Patent Document 1, polyester fibers containing a brominated epoxy flame retardant and an acidic phosphoric acid compound have been developed. In Patent Document 1, by adding an acidic phosphoric acid compound to a polyester resin, the viscosity of the polyester resin is lowered, and further, the dispersibility of the brominated epoxy flame retardant blended in the polyester resin is lowered. It is possible to develop undulations on the surface layer of the fiber after spinning, and as a result, the gloss of the fiber can be reduced.
国際公開公報2013/180281号International Publication No. 2013/180281
 しかし、特許文献1に記載の人工毛髪用繊維は、酸性のリン酸化合物の吸湿性が高いために、水分含有量のばらつきが大きく、得られる繊維の品質にばらつきが生じてしまい、光沢低減の制御が困難であるという課題があった。また、繊維表面の凹凸の制御が困難なため、得られる繊維によっては、櫛通りが悪くなってしまい、改善の余地があった。 However, since the artificial hair fiber described in Patent Document 1 has high hygroscopicity of an acidic phosphoric acid compound, the water content varies widely, and the quality of the obtained fiber varies, resulting in a reduction in gloss. There was a problem that it was difficult to control. In addition, since it is difficult to control the unevenness of the fiber surface, combing may be difficult depending on the obtained fiber, and there is room for improvement.
 本発明は、上述した課題を解決するため、優れた櫛通り性を有するとともに、人毛に近い光沢を有する人工毛髪用繊維、それを含む頭髪製品及びその製造方法を提供する。 In order to solve the above-mentioned problems, the present invention provides an artificial hair fiber having excellent combability and a gloss close to that of human hair, a hair product containing the same, and a method for producing the same.
 本発明は、1以上の実施形態において、人工毛髪用繊維であって、前記人工毛髪用繊維の表面には、樹脂粒子が0.3%omf以上1.1%omf以下付着しており、前記樹脂粒子は、平均粒子径が1μm以上20μm以下であることを特徴とする人工毛髪用繊維に関する。 The present invention is, in one or more embodiments, an artificial hair fiber, wherein resin particles are adhered to the surface of the artificial hair fiber by 0.3% omf or more and 1.1% omf or less. The resin particles relate to artificial hair fibers having an average particle size of 1 μm or more and 20 μm or less.
 本発明は、1以上の実施形態において、前記人工毛髪用繊維の製造方法であって、人工毛髪用繊維の表面に樹脂エマルジョンを塗布する工程を含み、前記樹脂エマルジョンの平均粒子径は350nm以上であり、前記樹脂エマルジョンの塗布量は、固形分換算で0.3%omf以上1.1%omf以下であることを特徴とする人工毛髪用繊維の製造方法に関する。 The present invention is the method for producing the artificial hair fiber in one or more embodiments, which comprises a step of applying a resin emulsion to the surface of the artificial hair fiber, and the average particle size of the resin emulsion is 350 nm or more. The present invention relates to a method for producing an artificial hair fiber, wherein the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
 本発明は、1以上の実施形態において、前記人工毛髪用繊維を含むことを特徴とする頭飾製品に関する。 The present invention relates to a headdress product comprising the artificial hair fiber in one or more embodiments.
 本発明によれば、優れた櫛通り性を有するとともに、人毛に近い光沢を有する人工毛髪用繊維及びそれを含む頭髪製品を提供することができる。
 本発明の製造方法によれば、優れた櫛通り性を有するとともに、人毛に近い光沢を有する人工毛髪用繊維を得ることができる。
According to the present invention, it is possible to provide an artificial hair fiber having excellent combability and a gloss close to that of human hair, and a hair product containing the same.
According to the production method of the present invention, it is possible to obtain fibers for artificial hair having excellent combability and gloss similar to that of human hair.
図1は、本発明の実施例1の人工毛髪用繊維における繊維表面の走査型電子顕微鏡写真(1500倍)である。FIG. 1 is a scanning electron micrograph (1500 times) of the fiber surface of the artificial hair fiber of Example 1 of the present invention. 図2は、本発明の比較例1の繊維表面の走査型電子顕微鏡写真(1500倍)である。FIG. 2 is a scanning electron micrograph (1500 times) of the fiber surface of Comparative Example 1 of the present invention.
 本発明者は、上記課題を解決するために鋭意検討を重ねた結果、特定の粒子径を有する樹脂粒子を人工毛髪用繊維の表面に、特定量付着させることで、櫛通り性を良好にしつつ、繊維表面の光沢を抑制できることを見出した。当該特定の粒子径を有する樹脂粒子が繊維表面に存在することで、容易に繊維表面に適度な凹凸が形成され、櫛通り性を妨げることなく、光沢を低減させて人毛に近い光沢を有する人工毛髪用繊維が得られると推定される。特に、所定の粒子径を有する樹脂エマルジョンを人工毛髪用繊維の表面に塗布することで、繊維表面に樹脂粒子が付着しやすくなり、樹脂が所定の粒子径を有する凝集体粒子として付着することで、繊維表面に適度な凹凸が形成されることで、櫛通り性を妨げることなく、光沢を低減させて人毛に近い光沢が得られると推定される。 As a result of diligent studies to solve the above problems, the present inventor adheres a specific amount of resin particles having a specific particle size to the surface of artificial hair fibers to improve combability. , It was found that the gloss of the fiber surface can be suppressed. By the presence of the resin particles having the specific particle size on the fiber surface, appropriate irregularities are easily formed on the fiber surface, the gloss is reduced without hindering the combability, and the gloss is close to that of human hair. It is presumed that artificial hair fibers can be obtained. In particular, by applying a resin emulsion having a predetermined particle size to the surface of fibers for artificial hair, the resin particles easily adhere to the fiber surface, and the resin adheres as aggregate particles having a predetermined particle size. It is presumed that by forming appropriate irregularities on the fiber surface, the gloss can be reduced and the gloss close to that of human hair can be obtained without hindering the combability.
 <樹脂粒子>
 本発明の1以上の実施形態において、樹脂粒子は、人工毛髪用繊維表面に、0.3%omf(on the mass of fiber)以上1.1%omf以下付着している。樹脂粒子の付着量は、好ましくは0.35%omf以上1.0%omf以下であり、0.4%omf以上0.9%omf以下であることがより好ましい。樹脂粒子の付着量が0.3%omf未満の場合、繊維表面に付着する樹脂量が少ないため、光沢抑制効果が不十分なものとなってしまう。樹脂粒子の付着量が1.1%omfより大きいと付着する樹脂量が過大となり、触感や櫛通りが悪化する。
<Resin particles>
In one or more embodiments of the present invention, the resin particles are attached to the surface of the artificial hair fiber by 0.3% omf (on the mass of fiber) or more and 1.1% omf or less. The amount of the resin particles adhered is preferably 0.35% omf or more and 1.0% omf or less, and more preferably 0.4% omf or more and 0.9% omf or less. When the amount of resin particles adhered is less than 0.3% omf, the amount of resin adhering to the fiber surface is small, so that the gloss suppressing effect becomes insufficient. If the amount of resin particles adhered is larger than 1.1% omf, the amount of resin adhered becomes excessive, and the tactile sensation and combing are deteriorated.
 本発明の1以上の実施形態において、人工毛髪用繊維表面における樹脂粒子の付着量は、下記の通りに測定することができる。或いは、後述するように、人工毛髪用繊維表面の樹脂エマルジョンの塗布量に基づいて算出してもよい。
<樹脂粒子の付着量>
 シクロヘキサンおよびエタノールの体積比1:1の混合液体35mLを抽出液とし、該抽出液に2.0gの繊維を浸漬させ、繊維表面に付着した樹脂を抽出し、その抽出液を蒸発乾固させ、残った成分の重量を、繊維に付着した樹脂粒子の付着量とする。
In one or more embodiments of the present invention, the amount of resin particles adhering to the surface of the artificial hair fiber can be measured as follows. Alternatively, as will be described later, it may be calculated based on the amount of the resin emulsion applied to the surface of the artificial hair fiber.
<Amount of resin particles attached>
35 mL of a mixed liquid having a volume ratio of cyclohexane and ethanol of 1: 1 was used as an extract, 2.0 g of fibers were immersed in the extract, the resin adhering to the fiber surface was extracted, and the extract was evaporated to dryness. The weight of the remaining component is defined as the amount of resin particles adhering to the fiber.
 人工毛髪用繊維表面において、樹脂粒子の平均粒子径が1μm以上20μm以下である。樹脂粒子の平均粒子径は、1.5μm以上15μm以下であることが好ましく、2μm以上10μm以下であることがより好ましい。樹脂粒子の平均粒子径が1μm未満であると、繊維表面に凹凸が形成されにくく、光沢抑制効果が不十分なものとなってしまう。樹脂粒子の平均粒子径が20μmを超えると、樹脂粒子が大きすぎるため、触感や櫛通りが悪化する。 On the surface of fibers for artificial hair, the average particle size of the resin particles is 1 μm or more and 20 μm or less. The average particle size of the resin particles is preferably 1.5 μm or more and 15 μm or less, and more preferably 2 μm or more and 10 μm or less. If the average particle size of the resin particles is less than 1 μm, unevenness is less likely to be formed on the fiber surface, and the gloss suppressing effect becomes insufficient. If the average particle size of the resin particles exceeds 20 μm, the resin particles are too large, and the tactile sensation and combing are deteriorated.
 本発明の1以上の実施形態において、人工毛髪用繊維表面における樹脂粒子の平均粒子径は、下記の通りに測定することができる。
<樹脂粒子の平均粒子径>
 繊維表面を走査型電子顕微鏡で1000倍に拡大した画像を撮影し、その視野で観察される10個の樹脂粒子の粒子径を観察し、その平均値を樹脂粒子の平均粒子径とする。
In one or more embodiments of the present invention, the average particle size of the resin particles on the surface of the artificial hair fiber can be measured as follows.
<Average particle size of resin particles>
An image obtained by magnifying the fiber surface 1000 times with a scanning electron microscope is taken, the particle diameters of the 10 resin particles observed in the field of view are observed, and the average value thereof is taken as the average particle diameter of the resin particles.
 人工毛髪用繊維表面において、樹脂粒子は、常温で固体であることが好ましい。前記樹脂粒子が常温で液体の場合、繊維表面に適度な凹凸を形成しにくく、光を乱反射させる効果が発揮されず、光沢が低減されにくくなると推定される。なお、本発明における常温とは、10℃以上30℃以下を意味する。 On the surface of fibers for artificial hair, the resin particles are preferably solid at room temperature. When the resin particles are liquid at room temperature, it is presumed that it is difficult to form appropriate irregularities on the fiber surface, the effect of diffusely reflecting light is not exhibited, and the gloss is difficult to be reduced. The normal temperature in the present invention means 10 ° C. or higher and 30 ° C. or lower.
 樹脂粒子は、光沢抑制効果を高める観点から、ポリウレタン系樹脂及びポリアミド系樹脂からなるなる群から選ばれる一つ以上の樹脂を含むことが好ましい。ポリウレタン系樹脂としては、特に限定されないが、例えば、脂肪族ポリウレタン、芳香族のポリウレタンなどが挙げられる。ポリアミド系樹脂としては、特に限定されないが、例えば、ポリアミドエラストマー、ポリアミドに他の成分を共重合させた重合体などが挙げられる。 The resin particles preferably contain one or more resins selected from the group consisting of polyurethane-based resins and polyamide-based resins from the viewpoint of enhancing the gloss suppressing effect. The polyurethane-based resin is not particularly limited, and examples thereof include aliphatic polyurethanes and aromatic polyurethanes. The polyamide-based resin is not particularly limited, and examples thereof include a polyamide elastomer and a polymer obtained by copolymerizing polyamide with other components.
 樹脂粒子は、ポリウレタン系樹脂やポリアミド系樹脂に加えて、繊維表面の光沢性を阻害しない範囲で、他の種類の樹脂を含んでもよい。他の種類の樹脂としては、例えば、ポリオキシアルキル、ジメチルシロキサンなどが挙げられる。他の種類の樹脂の付着量は、0.05%omf以上0.8%omf以下であることが好ましい。 In addition to the polyurethane-based resin and the polyamide-based resin, the resin particles may contain other types of resins as long as the glossiness of the fiber surface is not impaired. Examples of other types of resins include polyoxyalkyl and dimethylsiloxane. The amount of adhesion of other types of resins is preferably 0.05% omf or more and 0.8% omf or less.
 <人工毛髪用繊維>
 人工毛髪用繊維は、特に限定されず、例えばポリエステル系繊維、ポリ塩化ビニル系繊維、ポリアミド系繊維、ポリアクリル系繊維、アクリロニトリル系繊維、ポリフェニレンサルファイド系繊維などが挙げられる。
<Fiber for artificial hair>
The artificial hair fiber is not particularly limited, and examples thereof include polyester fiber, polyvinyl chloride fiber, polyamide fiber, polyacrylic fiber, acrylonitrile fiber, and polyphenylene sulfide fiber.
 ポリエステル系繊維は、ポリエステル系樹脂組成物で形成されている繊維である。通常、ポリエステル系樹脂組成物を溶融紡糸することにより、ポリエステル系人工毛髪用繊維を形成することができる。なお、ポリエステル系樹脂組成物は、通常、溶融混練した後、溶融紡糸する。上記ポリエステル樹脂組成物は、ポリエステル系樹脂に加えて、難燃剤、難燃助剤、滑剤、ダル化剤、着色用の顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。 The polyester fiber is a fiber formed of a polyester resin composition. Usually, a polyester-based artificial hair fiber can be formed by melt-spinning a polyester-based resin composition. The polyester resin composition is usually melt-kneaded and then melt-spun. In addition to the polyester resin, the polyester resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardants, lubricants, dulling agents, pigments for coloring and the like. ..
 ポリアミド系繊維は、ポリアミド系樹脂組成物で形成される繊維である。ポリアミド系樹脂組成物は、ポリアミド系樹脂に加えて、難燃剤、難燃助剤、滑剤、ダル化剤、着色用の顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。 The polyamide fiber is a fiber formed of a polyamide resin composition. The polyamide-based resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like, in addition to the polyamide-based resin. ..
 ポリ塩化ビニル系繊維は、ポリ塩化ビニル系樹脂組成物で形成される繊維である。ポリ塩化ビニル系樹脂組成物は、ポリ塩化ビニル系樹脂に加えて、可塑剤、難燃助剤、滑剤、ダル化剤、着色用の顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。 The polyvinyl chloride-based fiber is a fiber formed of a polyvinyl chloride-based resin composition. In addition to the polyvinyl chloride resin, the polyvinyl chloride resin composition contains one or more additives selected from the group consisting of plasticizers, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like. It may be included as appropriate.
 アクリロニトリル系繊維は、ポリアクリロニトリル繊維及びモダアクリル繊維をいう。ポリアクリロニトリル繊維は、アクリロニトリルを85重量%以上100重量%以下と、他の成分を15重量%以下含むポリアクリロニトリル樹脂を原料とする繊維であり、モダアクリル繊維は、アクリロニトリルを35重量%以上85重量%未満と、他の成分を15重量%より多く、65重量%以下含むモダアクリル樹脂を原料とする繊維である。ポリアクリロニトリル繊維は、ポリアクリロニトリル樹脂組成物で形成することができる。ポリアクリロニトリル樹脂組成物は、ポリアクリロニトリル樹脂に加えて、難燃剤、難燃助剤、ダル化剤、染料、顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。モダアクリル繊維は、モダアクリル樹脂組成物で形成することができる。モダアクリル樹脂組成物は、モダアクリル樹脂に加えて、難燃剤、難燃助剤、ダル化剤、染料、顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。 Acrylonitrile-based fibers refer to polyacrylonitrile fibers and modacrylic fibers. The polyacrylonitrile fiber is a fiber made from a polyacrylonitrile resin containing 85% by weight or more and 100% by weight or less of acrylonitrile and 15% by weight or less of other components, and the modaacrylic fiber is 35% by weight or more and 85% by weight of acrylonitrile. It is a fiber made of modaacrylic resin containing less than 15% by weight and 65% by weight or less of other components. The polyacrylonitrile fiber can be formed of a polyacrylonitrile resin composition. The polyacrylonitrile resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardant aids, dulling agents, dyes, pigments, etc., in addition to the polyacrylonitrile resin. The moda acrylic fiber can be formed of a moda acrylic resin composition. The moda acrylic resin composition may appropriately contain one or more additives selected from the group consisting of flame retardants, flame retardants, dulling agents, dyes, pigments, etc., in addition to the moda acrylic resin.
 ポリフェニレンサルファイド系繊維は、ポリフェニレンサルファイド系樹脂組成物で形成される繊維である。ポリフェニレンサルファイド系樹脂組成物は、ポリフェニレンサルファイド系樹脂、可塑剤、難燃助剤、滑剤、ダル化剤、着色用の顔料などからなる群から選ばれる一つ以上の添加剤を適宜含んでもよい。 The polyphenylene sulfide-based fiber is a fiber formed of a polyphenylene sulfide-based resin composition. The polyphenylene sulfide-based resin composition may appropriately contain one or more additives selected from the group consisting of polyphenylene sulfide-based resins, plasticizers, flame retardant aids, lubricants, dulling agents, pigments for coloring, and the like.
 人工毛髪用繊維は、非捲縮生糸状の繊維であってもよい。また、人工毛髪用繊維は、人工毛髪に適するという観点から、繊度は10~100dtexであることが好ましく、より好ましくは20~90dtexであり、さらに好ましくは35~80dtexである。 The artificial hair fiber may be a non-crimped raw thread-like fiber. Further, the fiber for artificial hair preferably has a fineness of 10 to 100 dtex, more preferably 20 to 90 dtex, and further preferably 35 to 80 dtex from the viewpoint of being suitable for artificial hair.
 人工毛髪用繊維は、断面形状は特に限定されないが、例えば円形、楕円形、異形、例えば馬蹄形、C字形、Y字形が挙げられる。 The cross-sectional shape of the artificial hair fiber is not particularly limited, and examples thereof include a circular shape, an elliptical shape, and an irregular shape, such as a horseshoe shape, a C shape, and a Y shape.
 <紡糸方法>
 人工毛髪用繊維は、従来公知の方法で製造することができる。ポリエステル系繊維やポリ塩化ビニル系繊維の製造方法としては、通常、溶融紡糸法が用いられる。人工毛髪用繊維がポリエステル系樹脂組成物などの熱可塑性樹脂組成物で構成される場合は、熱可塑性樹脂組成物を種々の一般的な混練機を用いて溶融混練してペレット化した後、溶融紡糸することにより人工毛髪用繊維を製造することができる。紡出糸条を冷却用の水を入れた水槽で冷却し、繊度のコントロールを行うことも可能である。加熱筒の温度と長さ、冷却風の温度と吹付量、冷却水槽の温度、冷却時間及び引取速度は、ポリマーの吐出量及びノズルの孔数によって適宜調整することができる。例えば、ポリエステル系樹脂組成物の場合は、押出機、ギアポンプ、ノズルなどの温度を250℃以上300℃以下とし、溶融紡糸し、紡出糸条を加熱筒に通過させた後、ポリエステル系樹脂のガラス転移点以下に冷却し、50m/分以上5000m/分以下の速度で引取ることにより紡出糸条(未延伸糸)が得られる。
<Spinning method>
The artificial hair fiber can be produced by a conventionally known method. As a method for producing polyester fibers and polyvinyl chloride fibers, a melt spinning method is usually used. When the artificial hair fiber is composed of a thermoplastic resin composition such as a polyester resin composition, the thermoplastic resin composition is melt-kneaded using various general kneaders to pelletize and then melt. By spinning, fibers for artificial hair can be produced. It is also possible to control the fineness by cooling the spun yarn in a water tank containing cooling water. The temperature and length of the heating cylinder, the temperature and spray amount of the cooling air, the temperature of the cooling water tank, the cooling time and the take-up speed can be appropriately adjusted according to the discharge amount of the polymer and the number of nozzle holes. For example, in the case of a polyester resin composition, the temperature of the extruder, gear pump, nozzle, etc. is set to 250 ° C. or higher and 300 ° C. or lower, melt spinning is performed, the spun yarn is passed through a heating cylinder, and then the polyester resin is prepared. A spun yarn (undrawn yarn) is obtained by cooling below the glass transition point and taking up at a speed of 50 m / min or more and 5000 m / min or less.
 紡出糸条(未延伸糸)は熱延伸されることが好ましい。延伸は、紡出糸条を一旦巻き取ってから延伸する2工程法と、紡出糸条を巻き取ることなく連続して延伸する直接紡糸延伸法のいずれの方法によって行ってもよい。熱延伸は、1段延伸法又は2段以上の多段延伸法で行なわれる。熱延伸における加熱手段としては、加熱ローラ、ヒートプレート、スチームジェット装置、温水槽などを使用することができ、これらを適宜併用することもできる。人工毛髪用繊維が原着されている場合、そのまま使用してもよい。人工毛髪用繊維が原着されていない場合、染色することができる。染色に使用される顔料、染料、助剤などとしては、耐候性及び難燃性を有するものも使用できる。 It is preferable that the spun yarn (undrawn yarn) is heat-drawn. The stretching may be carried out by either a two-step method in which the spun yarn is wound once and then stretched, or a direct spun drawing method in which the spun yarn is continuously stretched without being wound. The thermal stretching is carried out by a one-step stretching method or a two-stage or more multi-step stretching method. As the heating means in the heat stretching, a heating roller, a heat plate, a steam jet device, a hot water tank, or the like can be used, and these can be used in combination as appropriate. If the artificial hair fiber is coated, it may be used as it is. If the artificial hair fibers are not dyed, they can be dyed. As the pigments, dyes, auxiliaries and the like used for dyeing, those having weather resistance and flame retardancy can also be used.
 前記モダアクリル繊維は、従来公知の方法で製造することができる。前記モダアクリル繊維は、通常、モダアクリル樹脂を有機溶媒に溶解した紡糸液を湿式紡糸して得ることができる。有機溶媒としては、例えば、ジメチルスルホキシド(DMSO)、ジメチルアセトアミド(DMAc)及びN,N-ジメチルホルムアミド(DMF)などが挙げられる。上記湿式紡糸は、凝固工程、水洗工程及び乾燥工程を含んでもよい。また、水洗工程の前或いは水洗工程の後に行う浴延伸工程を含んでもよい。また、乾燥工程の前に行う油剤付与工程を含んでもよい。また、乾燥工程の後に行う延伸工程及び熱緩和処理工程を含んでもよい。 The moda acrylic fiber can be produced by a conventionally known method. The modacrylic fiber can usually be obtained by wet spinning a spinning liquid in which a modacrylic resin is dissolved in an organic solvent. Examples of the organic solvent include dimethyl sulfoxide (DMSO), dimethylacetamide (DMAc) and N, N-dimethylformamide (DMF). The wet spinning may include a coagulation step, a washing step and a drying step. Further, a bath stretching step performed before the water washing step or after the water washing step may be included. In addition, an oil agent application step performed before the drying step may be included. Further, a stretching step and a heat relaxation treatment step performed after the drying step may be included.
 人工毛髪用繊維は、ポリエステル系繊維、ポリアミド系繊維、ポリ塩化ビニル系繊維、アクリロニトリル系繊維、ポリフェニレンサルファイド繊維などの全ての人工毛髪用繊維を含む。必要に応じて、耐熱剤、光安定剤、蛍光剤、酸化防止剤、静電防止剤、顔料、可塑剤、潤滑剤などの各種添加剤を含有させることができる。顔料を含有させることにより、原着繊維を得ることができる。さらに、繊維表面処理剤、柔軟剤などの油剤を使用し、触感、風合を調整して、より人毛に近づけることができる。これらの繊維表面処理剤、柔軟剤は、低光沢化を目的とした樹脂エマルジョンと混合して塗布しても、別々に塗布しても構わない。 The artificial hair fiber includes all artificial hair fibers such as polyester fiber, polyamide fiber, polyvinyl chloride fiber, acrylonitrile fiber, and polyphenylene sulfide fiber. If necessary, various additives such as heat resistant agents, light stabilizers, fluorescent agents, antioxidants, antioxidants, pigments, plasticizers, and lubricants can be contained. By containing a pigment, a dyed fiber can be obtained. Further, an oil agent such as a fiber surface treatment agent or a softener can be used to adjust the tactile sensation and texture to bring the hair closer to human hair. These fiber surface treatment agents and softeners may be mixed with a resin emulsion for the purpose of reducing gloss and applied, or may be applied separately.
 <樹脂エマルジョンによる処理>
 人工毛髪用繊維の表面に樹脂エマルジョンを塗布することで、人工毛髪用繊維の表面に樹脂粒子を付着させることができる。
<Treatment with resin emulsion>
By applying the resin emulsion to the surface of the artificial hair fiber, the resin particles can be attached to the surface of the artificial hair fiber.
 本発明の1以上の実施形態において、樹脂エマルジョンとは、乳化剤などを用いて樹脂を水中に分散させた分散系溶液を意味する。樹脂をエマルジョンの状態で繊維に塗布することで、樹脂粒子単体を塗布するよりも繊維表面にエマルジョン樹脂粒子が付着しやすく、エマルジョン樹脂粒子が繊維表面で凝集体を形成することで、繊維表面に樹脂粒子による凹凸が形成され、人毛に近い光沢が得られると推定される。 In one or more embodiments of the present invention, the resin emulsion means a dispersion-based solution in which a resin is dispersed in water using an emulsifier or the like. By applying the resin in the state of an emulsion to the fiber, the emulsion resin particles are more likely to adhere to the fiber surface than by applying the resin particles alone, and the emulsion resin particles form aggregates on the fiber surface to form aggregates on the fiber surface. It is presumed that unevenness is formed by the resin particles and a gloss close to that of human hair can be obtained.
 樹脂エマルジョンの平均粒子径は350nm以上である。樹脂エマルジョンの平均粒子径が350nm未満の場合、樹脂エマルジョン粒子が繊維表面で凝集せず、繊維表面に均一な膜を形成してしまうため、光を乱反射させ、繊維表面の光沢を低下させる効果が小さくなってしまうと推定される。樹脂エマルジョンの平均粒子径は400nm以上1000nm以下であることが好ましく、より好ましくは500nm以上900nm以下である。なお、樹脂エマルジョンの平均粒子径とは、エマルジョン中に分散している樹脂粒子の粒子径を指し、平均粒子径の測定方法は特に限定されないが、例えば動的散乱法で測定することができる。 The average particle size of the resin emulsion is 350 nm or more. When the average particle size of the resin emulsion is less than 350 nm, the resin emulsion particles do not aggregate on the fiber surface and form a uniform film on the fiber surface, which has the effect of diffusely reflecting light and reducing the gloss of the fiber surface. It is estimated that it will become smaller. The average particle size of the resin emulsion is preferably 400 nm or more and 1000 nm or less, and more preferably 500 nm or more and 900 nm or less. The average particle size of the resin emulsion refers to the particle size of the resin particles dispersed in the emulsion, and the method for measuring the average particle size is not particularly limited, but the average particle size can be measured by, for example, a dynamic scattering method.
 樹脂エマルジョンにおいて、樹脂は溶媒である水とエマルジョンを形成しており、水を蒸発させるなど行って除去した際の当該樹脂粒子は、常温で固体であることが好ましい。当該樹脂粒子が常温で液体の場合、樹脂エマルジョンが繊維表面に均一に塗布されやすく、繊維表面で凝集体を形成しにくいため、光を乱反射させる効果が発揮されず、それゆえ、光沢が低減されにくくなると推定される。 In the resin emulsion, the resin forms an emulsion with water as a solvent, and the resin particles when removed by evaporating the water are preferably solid at room temperature. When the resin particles are liquid at room temperature, the resin emulsion is easily applied uniformly to the fiber surface, and it is difficult to form aggregates on the fiber surface, so that the effect of diffusely reflecting light is not exhibited, and therefore the gloss is reduced. It is estimated that it will be difficult.
 樹脂エマルジョンは、特に限定されないが、樹脂粒子が常温で固体であり、繊維表面に適度な凹凸を形成しやすい観点から、例えばポリウレタン系樹脂を含むポリウレタン系樹脂エマルジョンやポリアミド系樹脂を含むポリアミド系樹脂エマルジョンなどが挙げられる。 The resin emulsion is not particularly limited, but from the viewpoint that the resin particles are solid at room temperature and it is easy to form appropriate irregularities on the fiber surface, for example, a polyurethane-based resin emulsion containing a polyurethane-based resin or a polyamide-based resin containing a polyamide-based resin. Examples include emulsions.
 ポリウレタン系樹脂としては、特に限定されないが、脂肪族ポリウレタン、芳香族のポリウレタンなどが挙げられる。 The polyurethane-based resin is not particularly limited, and examples thereof include aliphatic polyurethane and aromatic polyurethane.
 ポリアミド系樹脂としては、特に限定されないが、ポリアミドエラストマー、ポリアミドに他の成分を共重合させた重合体などが挙げられる。 The polyamide-based resin is not particularly limited, and examples thereof include a polyamide elastomer and a polymer obtained by copolymerizing polyamide with other components.
 樹脂エマルジョンは、ポリウレタン系樹脂やポリアミド系樹脂に加えて、繊維表面の光沢性を阻害しない範囲で、他の種類の樹脂を含んでもよい。 The resin emulsion may contain, in addition to the polyurethane-based resin and the polyamide-based resin, other types of resins as long as the glossiness of the fiber surface is not impaired.
 樹脂エマルジョンは、公知の方法で調整することができます。例えば、樹脂が溶解した均一な溶液状態から乳化剤などを加えてエマルジョン粒子を分散させる凝集法、分散状態から撹拌などにより、液滴が微分散したエマルジョン粒子を形成させる分散法、さらには乳化剤の存在下で重合反応を行い、重合と同時にエマルジョン粒子を形成する乳化重合法などが挙げられる。乳化剤としては、樹脂の性状に合わせて、カチオン系、アニオン系、ノニオン系の界面活性剤を適宜用いることができる。 The resin emulsion can be adjusted by a known method. For example, a coagulation method in which an emulsifier or the like is added from a uniform solution state in which a resin is dissolved to disperse emulsion particles, a dispersion method in which droplets are finely dispersed by stirring from a dispersed state, or an emulsifier is present. Examples thereof include an emulsion polymerization method in which a polymerization reaction is carried out underneath to form emulsion particles at the same time as polymerization. As the emulsifier, a cationic, anionic, or nonionic surfactant can be appropriately used according to the properties of the resin.
 樹脂エマルジョンの粘度は、特に限定されないが、例えば、繊維表面に均一に塗布できる点から、30℃で、0.1mPa・s以上1000mPa・s以下であることが好ましく、50mPa・s以上900mPa・s以下であることがより好ましく、100mPa・s以上800mPa・s以下であることがさらに好ましい。なお、本発明における粘度は、B型粘度計で測定した値をいう。 The viscosity of the resin emulsion is not particularly limited, but for example, it is preferably 0.1 mPa · s or more and 1000 mPa · s or less, and 50 mPa · s or more and 900 mPa · s at 30 ° C. from the viewpoint that it can be uniformly applied to the fiber surface. It is more preferably 100 mPa · s or more and 800 mPa · s or less. The viscosity in the present invention refers to a value measured with a B-type viscometer.
 樹脂エマルジョンのpHは、繊維表面のダメージが少ないことや、他の表面処理剤を凝集させない観点から、4以上9以下の範囲が好ましい。 The pH of the resin emulsion is preferably in the range of 4 or more and 9 or less from the viewpoint of less damage to the fiber surface and not agglomerating other surface treatment agents.
 樹脂エマルジョンとしては、市販のものを用いてもよい。例えば、市販の樹脂エマルジョンをそのまま用いてもよく、さらに適宜水で希釈して用いてもよい。 As the resin emulsion, a commercially available one may be used. For example, a commercially available resin emulsion may be used as it is, or may be appropriately diluted with water before use.
 本発明の1以上の実施形態において、樹脂エマルジョンを2種以上用いてもよい。例えば、予め2種以上の樹脂エマルジョンを混合した後に繊維に付着してもよいし、各種樹脂エマルジョンを順次繊維に付着させてもよい。また、樹脂エマルジョンに、物性を損なわない範囲で、例えば増粘剤などの添加剤を添加してもよい。 In one or more embodiments of the present invention, two or more resin emulsions may be used. For example, two or more kinds of resin emulsions may be mixed in advance and then attached to the fibers, or various resin emulsions may be sequentially attached to the fibers. Further, an additive such as a thickener may be added to the resin emulsion as long as the physical properties are not impaired.
 樹脂エマルジョンを繊維表面に塗布する工程は、特に制限されないが、人工毛髪用繊維で用いる油剤の塗布方法に準じた各種の手法と同様の方法を使用できる。例えば、樹脂エマルジョンを又は樹脂エマルジョンを水で希釈した溶液を表面に含んだロールに繊維を接触させる方法、繊維の上部から樹脂エマルジョン又は樹脂エマルジョンを水で希釈した溶液をを滴下する方法、樹脂エマルジョン又は樹脂エマルジョンを水で希釈した溶液をに繊維を浸漬させる方法などが挙げられる。 The step of applying the resin emulsion to the fiber surface is not particularly limited, but a method similar to various methods similar to the method of applying the oil agent used for the artificial hair fiber can be used. For example, a method of bringing a fiber into contact with a roll containing a resin emulsion or a solution obtained by diluting the resin emulsion with water on the surface, a method of dropping a resin emulsion or a solution obtained by diluting the resin emulsion with water from the upper part of the fiber, a resin emulsion. Alternatively, a method of immersing the fibers in a solution obtained by diluting the resin emulsion with water can be mentioned.
 樹脂エマルジョンの塗布量は、固形分換算で0.3%omf以上1.1%omf以下である。これにより、樹脂エマルジョンが平均粒子径が1μm以上20μm以下の樹脂粒子として繊維表面に付着しやすく、櫛通り性を良好に保ちつつ、光沢抑制効果を発揮することができる。樹脂エマルジョンの塗布量は、固形分換算で0.35%omf以上1.0%omf以下であることが好ましく、0.4%omf以上0.9%omf以下であることがより好ましい。 The amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content. As a result, the resin emulsion easily adheres to the fiber surface as resin particles having an average particle diameter of 1 μm or more and 20 μm or less, and can exhibit a gloss suppressing effect while maintaining good combability. The coating amount of the resin emulsion is preferably 0.35% omf or more and 1.0% omf or less, and more preferably 0.4% omf or more and 0.9% omf or less in terms of solid content.
 樹脂エマルジョンを繊維表面に塗布した後、乾燥してもよい。乾燥条件は、特に限定されず、繊維や樹脂エマルジョンの種類に応じて適宜行うことができる。例えば、乾燥温度は80℃以上180℃以下であってもよく、乾燥時間は0.5分以上15分以下であってもよい。 The resin emulsion may be applied to the fiber surface and then dried. The drying conditions are not particularly limited, and can be appropriately performed depending on the type of fiber or resin emulsion. For example, the drying temperature may be 80 ° C. or higher and 180 ° C. or lower, and the drying time may be 0.5 minutes or longer and 15 minutes or lower.
 <頭飾製品>
 本発明の1以上の実施形態において、人工毛髪用繊維は、そのまま単独で人工毛髪として用いることができる。或いは、他の人工毛髪用繊維素材、人毛、獣毛などの天然繊維と組み合わせて人工毛髪製品として用いることができる。
<Headdress products>
In one or more embodiments of the present invention, the artificial hair fiber can be used alone as artificial hair. Alternatively, it can be used as an artificial hair product in combination with other fiber materials for artificial hair and natural fibers such as human hair and animal hair.
 本発明の人工毛髪用繊維を用いて形成した頭飾製品は、装着した場合でも違和感のない光沢を有する。上記頭飾製品としては、特に限定されないが、例えば、ヘアーウィッグ、かつら、ウィービング、ヘアーエクステンション、ブレードヘアー、ヘアーアクセサリー、ドールヘアーなどが挙げられる。 The headdress product formed by using the artificial hair fiber of the present invention has a natural luster even when worn. The headdress product is not particularly limited, and examples thereof include hair wigs, wigs, weaving, hair extensions, blade hairs, hair accessories, and doll hairs.
 以下、実施例により本発明を更に具体的に説明するが、本発明は、これらの実施例にのみ限定されるものではない。 Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.
 実施例及び比較例で用いた測定・評価方向は下記の通りである。
 <樹脂エマルジョンの平均粒子径>
 樹脂エマルジョンの平均粒子径は、大塚電子社製ELSZ-1000を用いて、樹脂エマルジョンを固形分濃度が1重量%になるように水で希釈した水溶液について、動的光散乱法により行った。
 <樹脂エマルジョンの粘度>
 英弘精機社製デジタル粘度計DV2Tを用いて温度30℃における樹脂エマルジョンの粘度を測定した。
 <樹脂エマルジョンのpH>
 堀場製作所製pH測定装置D73Sを用いて、樹脂エマルジョンを水で10倍希釈した溶液のpHを測定した。
 <樹脂粒子の付着量>
 樹脂エマルジョンの固形分の付着量を繊維表面の樹脂粒子の付着量とした。
 <樹脂粒子の平均粒子径>
 走査型電子顕微鏡(日本電子社製JCM6000)を用いて繊維表面を観察倍率1000倍で観察し、繊維表面に観察される樹脂粒子10個の平均の大きさを測長ソフトウェアで測定し、その平均値を樹脂粒子の平均粒子径とした。
 <光沢>
 長さ30cm、総繊度10万dtexのトウフィラメントを用い、太陽光の下、目視にて以下の基準で光沢の判定を行った。
A:人毛の光沢と同等である。
B:人毛の光沢とほぼ同等である。
C:人毛の光沢と差があり、違和感がある。
 <櫛通り性>
 櫛通り性は、人工毛髪用繊維を長さ300mm、重量2gに束ね、この繊維束に櫛を通したときの抵抗や繊維の絡まりを評価した。
 A:人工毛髪用繊維と絡まず、櫛が良く通る
 B:人工毛髪用繊維と若干絡むが、櫛を通すことができる
 C:人工毛髪用繊維と櫛が絡み、櫛を通すことができない
The measurement / evaluation directions used in the examples and comparative examples are as follows.
<Average particle size of resin emulsion>
The average particle size of the resin emulsion was determined by a dynamic light scattering method for an aqueous solution obtained by diluting the resin emulsion with water so that the solid content concentration was 1% by weight using ELSZ-1000 manufactured by Otsuka Electronics Co., Ltd.
<Viscosity of resin emulsion>
The viscosity of the resin emulsion at a temperature of 30 ° C. was measured using a digital viscometer DV2T manufactured by Eiko Seiki Co., Ltd.
<pH of resin emulsion>
Using the pH measuring device D73S manufactured by HORIBA, Ltd., the pH of the solution obtained by diluting the resin emulsion 10-fold with water was measured.
<Amount of resin particles attached>
The amount of solids attached to the resin emulsion was defined as the amount of resin particles attached to the fiber surface.
<Average particle size of resin particles>
The fiber surface was observed with a scanning electron microscope (JCM6000 manufactured by JEOL Ltd.) at an observation magnification of 1000 times, and the average size of 10 resin particles observed on the fiber surface was measured with length measuring software, and the average was measured. The value was taken as the average particle size of the resin particles.
<Gloss>
Using a tow filament having a length of 30 cm and a total fineness of 100,000 dtex, the gloss was visually judged under the following criteria under sunlight.
A: It is equivalent to the luster of human hair.
B: It is almost the same as the luster of human hair.
C: There is a difference from the luster of human hair, and there is a sense of discomfort.
<Combability>
The combability was evaluated by bundling artificial hair fibers into a length of 300 mm and a weight of 2 g, and evaluating the resistance and entanglement of the fibers when the comb was passed through the fiber bundle.
A: The comb passes well without being entangled with the fibers for artificial hair B: The fibers for artificial hair are slightly entangled but can be passed through the comb C: The fibers for artificial hair and the comb are entangled and cannot be passed through the comb
 <製造例1>
 各原料を水分量100ppm以下に乾燥し、ポリエステル系樹脂(ポリエチレンテレフタレート、A-12、EAST WEST製)100重量部、臭素化エポキシ難燃剤(SR-T20000、阪本薬品工業株式会社製)20重量部、アンチモン酸ナトリウム(SAA、日本精鉱株式会社製)2重量部、分散剤(Wax CompositeG431L、クラリアントジャパン製)0.3重量部の割合でドライブレンドした。得られたポリエステル系樹脂組成物を二軸押出機(日本製鋼所株式会社製、商品名「TEX44」)に供給し、バレル設定温度270℃で溶融混練し、ペレット化した。得られたペレットを水分率100ppm以下に乾燥させた。次いで、乾燥したペレットを、溶融紡糸機(シンコーマシナリー株式会社製、商品名「SV30」)に供給し、バレル設定温度270℃で、扁平比が1.4:1の繭形断面ノズル孔を有する紡糸口金より溶融ポリマーを吐出し、20℃の冷却風により空冷し、100m/分の速度で巻き取って未延伸糸を得た。得られた未延伸糸を、75℃に加熱したヒートロールを用いて3.1倍に延伸し、205℃に加熱したヒートロールで熱処理し、30m/分の速度で巻き取り、単繊維繊度が約60dtex程度のポリエステル系人工毛髪用繊維(マルチフィラメント)を得た。
<Manufacturing example 1>
Each raw material is dried to a water content of 100 ppm or less, and 100 parts by weight of polyester resin (polyethylene terephthalate, A-12, manufactured by EAST WEST) and 20 parts by weight of brominated epoxy flame retardant (SR-T20000, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.) , 2 parts by weight of sodium antimonate (SAA, manufactured by Nihon Seiko Co., Ltd.) and 0.3 parts by weight of a dispersant (Wax Composite G431L, manufactured by Clariant Japan). The obtained polyester-based resin composition was supplied to a twin-screw extruder (manufactured by Japan Steel Works, Ltd., trade name "TEX44"), melt-kneaded at a barrel set temperature of 270 ° C., and pelletized. The obtained pellets were dried to a moisture content of 100 ppm or less. Next, the dried pellets are supplied to a melt spinning machine (manufactured by Shinko Machinery Co., Ltd., trade name "SV30"), and have a cocoon-shaped cross-section nozzle hole having a barrel set temperature of 270 ° C. and a flatness ratio of 1.4: 1. The molten polymer was discharged from the spinneret, air-cooled with a cooling air at 20 ° C., and wound at a speed of 100 m / min to obtain an undrawn yarn. The obtained undrawn yarn was stretched 3.1 times using a heat roll heated to 75 ° C., heat-treated with a heat roll heated to 205 ° C., and wound at a speed of 30 m / min to obtain a single fiber fineness. A polyester-based artificial hair fiber (multifilament) of about 60 dtex was obtained.
 <製造例2>
 アクリロニトリル46重量%、塩化ビニル52.0重量%、及びスチレンスルホン酸2.0重量%からなるモダアクリル樹脂を、紡糸ノズル(孔径0.3mm、孔数1250個)を用いて20℃、62重量%のDMSO水溶液からなる凝固浴中に押出して凝固させて繊維化した後、80℃、50重量%のDMSO水溶液からなる延伸浴中で3倍に延伸した。水洗した後、モダアクリル繊維を油剤(脂肪酸エステル系油剤とポリオキシエチレン系界面活性剤)及び油剤100重量部に対してジメチルスルホンを0.5重量部添加した混合物が導入されている油剤槽(60℃)に3~5秒間浸漬してモダアクリル繊維に油剤及びジメチルスルホンの混合物を含浸させた後、140℃で乾燥してから2倍に延伸し、160℃にて20%緩和処理を施して単繊維繊度が約46dtexのモダアクリル繊維を得た。
<Manufacturing example 2>
A modal acrylic resin composed of 46% by weight of acrylonitrile, 52.0% by weight of vinyl chloride, and 2.0% by weight of styrene sulfonic acid was used at 20 ° C. and 62% by weight using a spinning nozzle (hole diameter 0.3 mm, number of holes 1250). After being extruded into a coagulation bath consisting of a DMSO aqueous solution of the above and coagulated to form fibers, the mixture was stretched three times in a stretching bath consisting of a DMSO aqueous solution of 50% by weight at 80 ° C. After washing with water, an oil agent tank (60) in which a mixture of moda acrylic fibers (fatty acid ester-based oil agent and polyoxyethylene-based surfactant) and 0.5 parts by weight of dimethyl sulfone added to 100 parts by weight of the oil agent is introduced. After immersing the moda acrylic fiber in (° C.) for 3 to 5 seconds to impregnate the moda acrylic fiber with a mixture of oil and dimethyl sulfone, it is dried at 140 ° C., stretched twice, and subjected to a 20% relaxation treatment at 160 ° C. Modal acrylic fibers having a fiber fineness of about 46 dtex were obtained.
 <製造例3>
 塩化ビニル単独重合体(カネカ社製、品名「S-1001」)100重量部に、塩化ビニル-酢酸ビニル共重合体(カネカ社製、品名「K1F」)1.4重量部、可塑剤0.9重量部、熱安定剤1.1重量部、加工助剤2.93重量部及び滑剤0.88重量部を添加し、ヘンシェルミキサーで攪拌混合し、ポリ塩化ビニル系樹脂コンパウンドを得た。該コンパウンドを、口径40mmの単軸押出機のホッパー部へ投入し、シリンダー温度170℃、ノズル温度180±15℃の範囲で、コンパウンドを押し出し溶融紡糸した。ノズルの孔形状が繭型のノズルを用いた。押出されたフィラメントをノズル直下に設けた加熱筒内(330℃雰囲気)で約0.5~1.5秒熱処理し、熱処理後の未延伸糸を引取ロールによってボビンに巻いた。次に、未延伸糸を110℃に温度調整した熱風循環箱を通して約2~4倍へ延伸した。次に、110℃に温度調整した熱風循環箱の中で連続的に38%の緩和処理を実施し、マルチフィラメントを巻き取ることでポリ塩化ビニル系繊維(単繊維繊度約72dtex)を得た。
<Manufacturing example 3>
100 parts by weight of vinyl chloride homopolymer (manufactured by Kaneka Corporation, product name "S-1001"), 1.4 parts by weight of vinyl chloride-vinyl acetate copolymer (manufactured by Kaneka Corporation, product name "K1F"), plasticizer 0. 9 parts by weight, 1.1 parts by weight of the heat stabilizer, 2.93 parts by weight of the processing aid and 0.88 parts by weight of the lubricant were added, and the mixture was stirred and mixed with a Henschel mixer to obtain a polyvinyl chloride resin compound. The compound was put into a hopper of a single-screw extruder having a diameter of 40 mm, and the compound was extruded and melt-spun in a range of a cylinder temperature of 170 ° C. and a nozzle temperature of 180 ± 15 ° C. A cocoon-shaped nozzle was used. The extruded filament was heat-treated in a heating cylinder (atmosphere at 330 ° C.) provided directly under the nozzle for about 0.5 to 1.5 seconds, and the undrawn yarn after the heat treatment was wound around the bobbin by a take-up roll. Next, the undrawn yarn was drawn about 2 to 4 times through a hot air circulation box whose temperature was adjusted to 110 ° C. Next, a 38% relaxation treatment was continuously carried out in a hot air circulation box whose temperature was adjusted to 110 ° C., and the multifilaments were wound to obtain polyvinyl chloride fibers (single fiber fineness of about 72 dtex).
 (実施例1)
 製造例1で得られたポリエステル系繊維を、ポリウレタン系樹脂を含み、平均粒子径、粘度及びpHが表1に示す通りのポリウレタン系樹脂エマルジョンに浸漬した後、脱水処理を行い、固形分の塗布量を0.4%omfに調整することで、ポリウレタン系樹脂粒子が繊維表面に0.4%omf付着した人工毛髪用繊維を作製した。
(Example 1)
The polyester fiber obtained in Production Example 1 is immersed in a polyurethane resin emulsion containing a polyurethane resin and having an average particle size, viscosity and pH as shown in Table 1, and then dehydrated to apply a solid content. By adjusting the amount to 0.4% omf, fibers for artificial hair in which polyurethane-based resin particles adhered 0.4% omf to the fiber surface were produced.
 (実施例2)
 樹脂エマルジョンの固形分の塗布量を0.6%omfとし、ポリウレタン系樹脂粒子が繊維表面に0.6%omf付着するようにした以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Example 2)
A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of solid content of the resin emulsion applied was 0.6% omf and the polyurethane resin particles adhered to the fiber surface by 0.6% omf. bottom.
 (実施例3)
 ポリアミド系樹脂を含み、平均粒子径、粘度及びpHが表1に示す通りのポリアミド系樹脂エマルジョンを用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Example 3)
Fibers for artificial hair were produced in the same manner as in Example 1 except that a polyamide resin emulsion containing a polyamide resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
 (実施例4)
 樹脂エマルジョンの固形分の塗布量を0.6%omfとし、ポリアミド系樹脂粒子が繊維表面に0.6%omf付着するようにした以外は、実施例3と同様にして人工毛髪用繊維を作製した。
(Example 4)
A fiber for artificial hair was produced in the same manner as in Example 3 except that the amount of solid content of the resin emulsion applied was 0.6% omf and the polyamide-based resin particles adhered to the fiber surface by 0.6% omf. bottom.
 (実施例5)
 製造例2で得られたモダアクリル繊維を用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Example 5)
A fiber for artificial hair was produced in the same manner as in Example 1 except that the moda acrylic fiber obtained in Production Example 2 was used.
 (実施例6)
 製造例2で得られたモダアクリル繊維を用いた以外は、実施例3と同様にして人工毛髪用繊維を作製した。
(Example 6)
A fiber for artificial hair was produced in the same manner as in Example 3 except that the moda acrylic fiber obtained in Production Example 2 was used.
 (実施例7)
 製造例3で得られたモダアクリル繊維を用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Example 7)
A fiber for artificial hair was produced in the same manner as in Example 1 except that the moda acrylic fiber obtained in Production Example 3 was used.
 (実施例8)
 製造例3で得られたモダアクリル繊維を用いた以外は、実施例3と同様にして人工毛髪用繊維を作製した。
(Example 8)
A fiber for artificial hair was produced in the same manner as in Example 3 except that the moda acrylic fiber obtained in Production Example 3 was used.
 (比較例1)
 ポリエステル系樹脂を含み、平均粒子径、粘度及びpHが表1に示す通りのポリエステル系樹脂エマルジョンを用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 1)
A fiber for artificial hair was produced in the same manner as in Example 1 except that a polyester resin emulsion containing a polyester resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
 (比較例2)
 ポリウレタン系樹脂を含み、平均粒子径、粘度及びpHが表1に示す通りのポリウレタン系樹脂エマルジョンを用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 2)
Fibers for artificial hair were produced in the same manner as in Example 1 except that a polyurethane resin emulsion containing a polyurethane resin and having an average particle size, viscosity and pH as shown in Table 1 was used.
 (比較例3)
 シリコーン系樹脂を含み、平均粒子径、粘度及びpHが表1に示す通りのシリコーン系樹脂エマルジョンを用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 3)
Fibers for artificial hair were produced in the same manner as in Example 1 except that a silicone-based resin emulsion containing a silicone-based resin and having an average particle size, viscosity, and pH as shown in Table 1 was used.
 (比較例4)
 樹脂エマルジョンの代わりにアルミナ懸濁液を用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 4)
Fibers for artificial hair were prepared in the same manner as in Example 1 except that an alumina suspension was used instead of the resin emulsion.
 (比較例5)
 樹脂エマルジョンの代わりにシリカ懸濁液を用いた以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 5)
Fibers for artificial hair were prepared in the same manner as in Example 1 except that a silica suspension was used instead of the resin emulsion.
 (比較例6)
 樹脂エマルジョンの固形分の塗布量を0.2%omfとし、ポリウレタン系樹脂粒子が繊維表面に0.2%omf付着するようにした以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 6)
A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of the solid content of the resin emulsion applied was 0.2% omf and the polyurethane resin particles adhered to the fiber surface by 0.2% omf. bottom.
 (比較例7)
 樹脂エマルジョンの固形分の塗布量を1.2%omfとし、ポリウレタン系樹脂粒子が繊維表面に1.2%omf付着するようにした以外は、実施例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 7)
A fiber for artificial hair was produced in the same manner as in Example 1 except that the amount of the solid content of the resin emulsion applied was 1.2% omf and the polyurethane resin particles adhered to the fiber surface by 1.2% omf. bottom.
 (比較例8)
 製造例2のモダアクリル繊維を用いた以外は、比較例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 8)
A fiber for artificial hair was produced in the same manner as in Comparative Example 1 except that the moda acrylic fiber of Production Example 2 was used.
 (比較例9)
 製造例2のモダアクリル繊維を用いた以外は、比較例7と同様にして人工毛髪用繊維を作製した。
(Comparative Example 9)
A fiber for artificial hair was produced in the same manner as in Comparative Example 7 except that the moda acrylic fiber of Production Example 2 was used.
 (比較例10)
 製造例3のモダアクリル繊維を用いた以外は、比較例1と同様にして人工毛髪用繊維を作製した。
(Comparative Example 10)
A fiber for artificial hair was produced in the same manner as in Comparative Example 1 except that the moda acrylic fiber of Production Example 3 was used.
 (比較例11)
 製造例3のモダアクリル繊維を用いた以外は、比較例7と同様にして人工毛髪用繊維を作製した。
(Comparative Example 11)
A fiber for artificial hair was produced in the same manner as in Comparative Example 7 except that the moda acrylic fiber of Production Example 3 was used.
 実施例及び比較例の人工毛髪用繊維について、光沢及び櫛通り性を上述したとおりに評価した。その結果を下記表1に示した。 The gloss and combability of the artificial hair fibers of Examples and Comparative Examples were evaluated as described above. The results are shown in Table 1 below.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
 図1に、実施例1で得られた人工毛髪用繊維表面のSEM写真を示した。また、図2に比較例1で得られた人工毛髪用繊維表面のSEM写真を示した。図1において、繊維表面に所定の大きさの凝集体(樹脂粒子)が見られ、光沢を抑制する効果を示していると考える。 FIG. 1 shows an SEM photograph of the fiber surface for artificial hair obtained in Example 1. In addition, FIG. 2 shows an SEM photograph of the fiber surface for artificial hair obtained in Comparative Example 1. In FIG. 1, agglomerates (resin particles) having a predetermined size are seen on the fiber surface, and it is considered that the effect of suppressing gloss is exhibited.
 一方、樹脂粒子の粒子径が小さい比較例1~3では、繊維表面を被覆するように粒子が付着し、明確な凹凸が見られず、人工毛髪用繊維に特有の高い光沢を有する結果となった。また、比較例4~5では、懸濁液中に分散した無機粒子が繊維表面に付着しているため、がさがさとした触感となり、外観や櫛通りが悪い結果となった。また、比較例6では、繊維表面に付着する粒子の量が少なすぎるため、十分な光沢抑制効果が得られなかった。比較例7は、繊維表面に付着した樹脂粒子の量が過剰であったために櫛通り性が悪化する結果となった。 On the other hand, in Comparative Examples 1 to 3 in which the particle size of the resin particles is small, the particles adhere so as to cover the fiber surface, no clear unevenness is observed, and the result is that the resin particles have a high luster peculiar to the artificial hair fiber. rice field. Further, in Comparative Examples 4 to 5, since the inorganic particles dispersed in the suspension adhered to the fiber surface, the tactile sensation was stubborn, and the appearance and combing were poor. Further, in Comparative Example 6, the amount of particles adhering to the fiber surface was too small, so that a sufficient gloss suppressing effect could not be obtained. In Comparative Example 7, the amount of resin particles adhering to the fiber surface was excessive, resulting in deterioration of combability.
 本発明は、特に限定されないが、例えば、下記の1以上の実施形態を含んでもよい。
 [1] 人工毛髪用繊維であって、
 前記人工毛髪用繊維の表面には、樹脂粒子が0.3%omf以上1.1%omf以下付着しており、
 前記樹脂粒子は、平均粒子径が1μm以上20μm以下であることを特徴とする人工毛髪用繊維。
 [2] 前記樹脂粒子は、常温で固体である、[1]に記載の人工毛髪用繊維。
 [3] 前記樹脂粒子が、ポリウレタン系樹脂及びポリアミド系樹脂からなる群から選ばれる1つ以上の樹脂を含む、[1]又は[2]に記載の人工毛髪用繊維。
 [4] 前記人工毛髪用繊維が、ポリエステル系繊維、ポリ塩化ビニル系繊維、アクリロニトリル系繊維、ポリアミド系繊維、及びポリフェニレンサルファイド系繊維からなる群から選ばれる一つ以上を含む、[1]~[3]のいずれかに記載の人工毛髪用繊維。
 [5] [1]~[4]のいずれかに記載の人工毛髪用繊維の製造方法であって、
 人工毛髪用繊維の表面に樹脂エマルジョンを塗布する工程を含み、
 前記樹脂エマルジョンの平均粒子径は350nm以上であり、
 前記樹脂エマルジョンの塗布量は、固形分換算で0.3%omf以上1.1%omf以下であることを特徴とする人工毛髪用繊維の製造方法。
 [6] 前記樹脂エマルジョンの粘度は、温度30℃において、0.1mPa・s以上1000mPa・s以下である、[5]に記載の人工毛髪用繊維の製造方法。
 [7] 前記樹脂エマルジョンのpHは、4以上9以下である、[5]又は[6]に記載の人工毛髪用繊維の製造方法。
 [8] [1]~[4]のいずれかに記載の人工毛髪用繊維を含むことを特徴とする頭飾製品。
 [9] 頭飾製品が、ヘアーウィッグ、かつら、ウィービング、ヘアーエクステンション、ブレードヘアー、ヘアーアクセサリー及びドールヘアーからなる群から選ばれる一つを含む、[8]に記載の頭飾製品。
The present invention is not particularly limited, but may include, for example, one or more embodiments described below.
[1] Fiber for artificial hair,
Resin particles are attached to the surface of the artificial hair fiber in an amount of 0.3% omf or more and 1.1% omf or less.
The resin particles are fibers for artificial hair having an average particle diameter of 1 μm or more and 20 μm or less.
[2] The artificial hair fiber according to [1], wherein the resin particles are solid at room temperature.
[3] The artificial hair fiber according to [1] or [2], wherein the resin particles contain one or more resins selected from the group consisting of polyurethane-based resins and polyamide-based resins.
[4] The artificial hair fibers include one or more selected from the group consisting of polyester fibers, polyvinyl chloride fibers, acrylonitrile fibers, polyamide fibers, and polyphenylene sulfide fibers [1] to [ 3] The artificial hair fiber according to any one of.
[5] The method for producing an artificial hair fiber according to any one of [1] to [4].
Including the step of applying a resin emulsion to the surface of artificial hair fibers,
The average particle size of the resin emulsion is 350 nm or more, and the resin emulsion has an average particle size of 350 nm or more.
A method for producing an artificial hair fiber, wherein the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
[6] The method for producing an artificial hair fiber according to [5], wherein the viscosity of the resin emulsion is 0.1 mPa · s or more and 1000 mPa · s or less at a temperature of 30 ° C.
[7] The method for producing an artificial hair fiber according to [5] or [6], wherein the pH of the resin emulsion is 4 or more and 9 or less.
[8] A headdress product comprising the fiber for artificial hair according to any one of [1] to [4].
[9] The headdress product according to [8], wherein the headdress product includes one selected from the group consisting of hair wigs, wigs, weaving, hair extensions, blade hair, hair accessories and doll hair.

Claims (9)

  1.  人工毛髪用繊維であって、
     前記人工毛髪用繊維の表面には、樹脂粒子が0.3%omf以上1.1%omf以下付着しており、
     前記樹脂粒子は、平均粒子径が1μm以上20μm以下であることを特徴とする人工毛髪用繊維。
    Fiber for artificial hair
    Resin particles are attached to the surface of the artificial hair fiber in an amount of 0.3% omf or more and 1.1% omf or less.
    The resin particles are fibers for artificial hair having an average particle diameter of 1 μm or more and 20 μm or less.
  2.  前記樹脂粒子は、常温で固体である請求項1に記載の人工毛髪用繊維。 The artificial hair fiber according to claim 1, wherein the resin particles are solid at room temperature.
  3.  前記樹脂粒子が、ポリウレタン系樹脂及びポリアミド系樹脂からなる群から選ばれる1つ以上の樹脂を含む請求項1又は2に記載の人工毛髪用繊維。 The artificial hair fiber according to claim 1 or 2, wherein the resin particles contain one or more resins selected from the group consisting of polyurethane-based resins and polyamide-based resins.
  4.  前記人工毛髪用繊維が、ポリエステル系繊維、ポリ塩化ビニル系繊維、アクリロニトリル系繊維、ポリアミド系繊維、及びポリフェニレンサルファイド系繊維からなる群から選ばれる一つ以上を含む請求項1~3のいずれかに記載の人工毛髪用繊維。 One of claims 1 to 3, wherein the artificial hair fiber includes one or more selected from the group consisting of polyester fiber, polyvinyl chloride fiber, acrylonitrile fiber, polyamide fiber, and polyphenylene sulfide fiber. The artificial hair fiber described.
  5.  請求項1~4のいずれかに記載の人工毛髪用繊維の製造方法であって、
     人工毛髪用繊維の表面に樹脂エマルジョンを塗布する工程を含み、
     前記樹脂エマルジョンの平均粒子径は350nm以上であり、
     前記樹脂エマルジョンの塗布量は、固形分換算で0.3%omf以上1.1%omf以下であることを特徴とする人工毛髪用繊維の製造方法。
    The method for producing an artificial hair fiber according to any one of claims 1 to 4.
    Including the step of applying a resin emulsion to the surface of artificial hair fibers,
    The average particle size of the resin emulsion is 350 nm or more, and the resin emulsion has an average particle size of 350 nm or more.
    A method for producing an artificial hair fiber, wherein the amount of the resin emulsion applied is 0.3% omf or more and 1.1% omf or less in terms of solid content.
  6.  前記樹脂エマルジョンの粘度は、温度30℃において、0.1mPa・s以上1000mPa・s以下である請求項5に記載の人工毛髪用繊維の製造方法。 The method for producing an artificial hair fiber according to claim 5, wherein the viscosity of the resin emulsion is 0.1 mPa · s or more and 1000 mPa · s or less at a temperature of 30 ° C.
  7.  前記樹脂エマルジョンのpHは、4以上9以下である請求項5又は6に記載の、人工毛髪用繊維の製造方法。 The method for producing an artificial hair fiber according to claim 5 or 6, wherein the pH of the resin emulsion is 4 or more and 9 or less.
  8.  請求項1~4のいずれかに記載の人工毛髪用繊維を含むことを特徴とする頭飾製品。 A headdress product comprising the artificial hair fiber according to any one of claims 1 to 4.
  9.  頭飾製品が、ヘアーウィッグ、かつら、ウィービング、ヘアーエクステンション、ブレードヘアー、ヘアーアクセサリー及びドールヘアーからなる群から選ばれる一つを含む請求項8に記載の頭飾製品。 The headdress product according to claim 8, wherein the headdress product includes one selected from the group consisting of hair wigs, wigs, weaving, hair extensions, blade hairs, hair accessories and doll hairs.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006121054A1 (en) * 2005-05-09 2006-11-16 Kaneka Corporation Polyester fiber for artificial hair
WO2009069751A1 (en) * 2007-11-30 2009-06-04 Kaneka Corporation Antibacterial artificial hair and antibacterial coating agent for artificial hair
WO2014045981A1 (en) * 2012-09-20 2014-03-27 帝人株式会社 Reinforcing fiber bundle and composite material using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006121054A1 (en) * 2005-05-09 2006-11-16 Kaneka Corporation Polyester fiber for artificial hair
WO2009069751A1 (en) * 2007-11-30 2009-06-04 Kaneka Corporation Antibacterial artificial hair and antibacterial coating agent for artificial hair
WO2014045981A1 (en) * 2012-09-20 2014-03-27 帝人株式会社 Reinforcing fiber bundle and composite material using same

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