WO2021186852A1 - Fibres capillaires artificielles, accessoire de tête comprenant celles-ci et procédé de fabrication de celles-ci - Google Patents

Fibres capillaires artificielles, accessoire de tête comprenant celles-ci et procédé de fabrication de celles-ci 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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English (en)
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/fr
Priority to US17/882,176 priority patent/US20220369747A1/en

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0075—Methods and machines for making wigs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G5/00—Hair pieces, inserts, rolls, pads, or the like; Toupées
    • A41G5/004—Hair pieces
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/59—Polyamides; Polyimides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/22—Polymers or copolymers of halogenated mono-olefins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides

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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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Materials For Medical Uses (AREA)

Abstract

La présente invention concerne, dans un ou plusieurs modes de réalisation, des fibres capillaires artificielles caractérisées en ce que des particules de résine adhèrent en une quantité de 0,3 à 1,1 % par rapport à la masse de fibres (omf) inclus à la surface des fibres capillaires artificielles, les particules de résine ayant un diamètre de particule moyen de 1 à 20 µm inclus. Dans un ou plusieurs modes de réalisation de la présente invention, les fibres capillaires artificielles peuvent être produites en appliquant une émulsion de résine ayant un diamètre de particule moyen de 350 nm ou plus à la surface des fibres de façon à atteindre 0,3 à 1,1 % par rapport à la masse de fibres (omf) inclus en termes de teneur en solides. La présente invention concerne ainsi : des fibres capillaires artificielles qui ont une excellente aptitude au peignage et une brillance proche de celle de vrais cheveux ; un accessoire de tête comprenant celles-ci ; et un procédé de fabrication des fibres capillaires artificielles.
PCT/JP2021/000243 2020-03-18 2021-01-06 Fibres capillaires artificielles, accessoire de tête comprenant celles-ci et procédé de fabrication de celles-ci WO2021186852A1 (fr)

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US17/882,176 US20220369747A1 (en) 2020-03-18 2022-08-05 Artificial hair fibers, head accessory including same, and method for manufacturing same

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006121054A1 (fr) * 2005-05-09 2006-11-16 Kaneka Corporation Fibre de polyester pour cheveux artificiels
WO2009069751A1 (fr) * 2007-11-30 2009-06-04 Kaneka Corporation Cheveu artificiel antibactérien et agent d'enrobage antibactérien pour cheveu artificiel
WO2014045981A1 (fr) * 2012-09-20 2014-03-27 帝人株式会社 Faisceau de fibres de renforcement et matière composite l'utilisant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006121054A1 (fr) * 2005-05-09 2006-11-16 Kaneka Corporation Fibre de polyester pour cheveux artificiels
WO2009069751A1 (fr) * 2007-11-30 2009-06-04 Kaneka Corporation Cheveu artificiel antibactérien et agent d'enrobage antibactérien pour cheveu artificiel
WO2014045981A1 (fr) * 2012-09-20 2014-03-27 帝人株式会社 Faisceau de fibres de renforcement et matière composite l'utilisant

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