WO2022138680A1 - 繊維処理剤 - Google Patents

繊維処理剤 Download PDF

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Publication number
WO2022138680A1
WO2022138680A1 PCT/JP2021/047437 JP2021047437W WO2022138680A1 WO 2022138680 A1 WO2022138680 A1 WO 2022138680A1 JP 2021047437 W JP2021047437 W JP 2021047437W WO 2022138680 A1 WO2022138680 A1 WO 2022138680A1
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Prior art keywords
fiber
mass
less
component
treatment agent
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PCT/JP2021/047437
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English (en)
French (fr)
Japanese (ja)
Inventor
淳一 古川
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Kao Corp
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Kao Corp
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Priority to EP21910820.6A priority Critical patent/EP4268653A4/en
Priority to CN202180087376.9A priority patent/CN116783347A/zh
Priority to US18/259,198 priority patent/US20240060234A1/en
Publication of WO2022138680A1 publication Critical patent/WO2022138680A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/41—Phenol-aldehyde or phenol-ketone resins
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/54—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur dioxide; with sulfurous acid or its salts
    • 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
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • 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
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/65—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing epoxy groups
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs
    • 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
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • 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
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/14—Collagen fibres
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/30—Flame or heat resistance, fire retardancy properties
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/45—Shrinking resistance, anti-felting properties

Definitions

  • the present invention relates to a fiber treatment agent for imparting water resistance, heat resistance and thermal shape memory ability to naturally derived fibers used in headdress products such as wigs and extensions.
  • Naturally-derived fibers include wigs, extensions, and other headdress products as an example of their use, and unlike synthetic fibers, they have a natural texture and appearance that come from natural materials.
  • regenerated protein fibers for example, regenerated collagen fibers, are obtained by solubilizing acid-soluble collagen or insoluble collagen with an alkali or an enzyme to obtain a spinning stock solution, which is then discharged into a coagulation bath through a spinning nozzle to be fiberized. Is done.
  • regenerated collagen fibers generally have a higher water absorption rate because they are more hydrophilic than synthetic fibers, and their mechanical strength is extremely low when they contain a large amount of water. For this reason, the mechanical strength is significantly reduced due to the high water absorption rate during shampooing, and the product is broken when dried by a hair dryer thereafter, leading to a decrease in suitability as a hair ornament product.
  • the regenerated collagen fiber also has a problem of low heat resistance, and when set at a high temperature similar to human hair in a set using a curling iron, shrinkage and crimping occur and the appearance is impaired. It ends up.
  • the shape at the time of heat setting with a hair iron or the like continues to be memorized even after the subsequent hair washing (has thermal shape memorization ability), whereas with regenerated collagen fiber, at the time of heat setting with a hair iron or the like. Since the shape is lost in the subsequent hair washing (there is no thermal shape memory ability), there is a part that is inferior in terms of styling freedom as compared with the conventional plastic synthetic fiber.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2019-143281
  • the present invention contains the following components (A) to (C) and has a turbidity of 1000 NTU or less (however, a part or all of the components (A) and (B) are produced from both of them. It may be in the state of a condensate to be used).
  • the present invention provides a fiber treatment method including the following step (i). (i) A step of immersing the fiber in the fiber treatment agent and treating the fiber while maintaining the turbidity of the treatment agent at 1000 NTU or less.
  • the present invention provides a method for producing a fiber for a headdress product, which comprises a step of treating the fiber by the fiber treatment method.
  • the present invention provides a method for manufacturing a headdress product, which comprises a step of treating the fiber by the fiber treatment method.
  • the present invention provides a fiber for a headdress product containing a condensate produced from the above components (A) and (B).
  • the present invention provides a headdress product whose constituent element is a fiber containing a condensate produced from the above components (A) and (B).
  • the fibers may be strongly stretched, and the technique described in Patent Document 1 may not have sufficient elasticity (toughness) of the treated fibers. Therefore, in order to prevent breakage during elongation, there has been a demand for increasing the elasticity of the fiber after treatment.
  • the present invention produces a fiber for headdress products, which has improved water resistance and heat resistance of naturally-derived fibers typified by regenerated collagen fiber, is imparted with thermal shape memory ability, and is also excellent in elasticity (tenacity).
  • the present inventor has determined that when the fiber treatment agent described in Patent Document 1 is handled based on the fiber treatment method of the same document, the composition in which the fibers are immersed changes through two phases. I found it. That is, in Phase 1, formaldehyde and the phenol compound exist in a free reaction with each other, but in Phase 2, formaldehyde and the phenol compound react with each other to form a condensate while growing. Increases the turbidity of the composition.
  • the naturally derived fiber when the naturally derived fiber is brought into contact with the phase 2 composition, a hard resin layer is formed on the surface of the fiber, so that the movement such as bending and stretching of the fiber is restricted, and the naturally derived fiber is used. It has been found that it becomes difficult to maintain elasticity (tenacity) and that the feel of the fiber surface also deteriorates.
  • the present inventors used a composition containing formaldehyde and a specific phenol compound having a turbidity of 1000 NTU or less for naturally derived fibers, and the turbidity of the treatment agent was increased.
  • the turbidity of the treatment agent was increased.
  • a fiber treatment agent for producing fibers for headdress products having improved water resistance and heat resistance of naturally derived fibers, imparted thermal shape memory ability, and improved elasticity (tenacity). Can be provided.
  • the fiber to be treated by the fiber treatment agent of the present invention may be either a synthetic fiber or a naturally derived fiber, but a naturally derived fiber is preferable.
  • Naturally-derived fibers are fibers collected from natural animals and plants, or artificially manufactured from keratin, collagen, casein, soybeans, peanuts, corn, silk chips, silk fibroin, etc., and are used to manufacture headdress products. Refers to the fiber used for. Of these, fibers artificially produced from keratin, collagen, casein, soybeans, peanuts, corn, silk scraps, silk fibroin and the like are preferable, and recycled collagen fibers and silk fibroin made from collagen are used as raw materials. Regenerated protein fibers such as regenerated silk fibers are more preferable, and regenerated collagen fibers are even more preferable.
  • the regenerated collagen fiber can be produced by a known technique, and the composition does not have to be 100% collagen, and may contain natural or synthetic polymers or additives for quality improvement. Further, it may be a post-processed regenerated collagen fiber. Filaments are preferred as the morphology of the regenerated collagen fibers. Filaments are generally removed from bobbin-wound or boxed conditions. Further, the filament produced from the drying step in the manufacturing process of the regenerated collagen fiber can be directly used.
  • the fiber treatment agent of the present invention may contain the formaldehyde of the component (A) and the phenol compound of the component (B) as these compounds themselves, but a part of the components (A) and (B) or All of them may be contained in the form of a condensate formed from both.
  • this condensate may contain a water-insoluble condensate formed by further linking the water-soluble condensates as long as the turbidity is 1000 NTU or less. good.
  • the term "condensate" includes both water-soluble and water-insoluble.
  • NTU Nephelometric Turbidity Unit
  • the turbidity of the fiber treatment agent can be measured at room temperature (25 ° C.) by putting the fiber treatment agent in the measuring cell of a digital turbidity meter (manufactured by AS ONE, model number: TB700) as it is.
  • Component (A): formaldehyde or its hydrate examples include formaldehyde monohydrate (methanediol). Of these, formaldehyde is preferable from the viewpoint of imparting high shape durability and durability to the naturally derived fiber after treatment.
  • the content of the component derived from the component (A) in the fiber treatment agent of the present invention is preferably 0.1% by mass or more, more preferably from the viewpoint of imparting high shape durability and strength to the naturally-derived fiber after treatment. Is 0.2% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and in addition to the above viewpoint, from the viewpoint of formulation compatibility, preferably 80% by mass or less, more preferably. It is 60% by mass or less, more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 30% by mass or less.
  • the content of the component derived from the component (A) in the fiber treatment agent of the present invention is preferable from the viewpoint of imparting high shape durability and strength to the naturally-derived fiber after treatment and from the viewpoint of formulation compatibility.
  • a "component derived from a component (A)” means a component derived from the component (A) and a remaining component (A) in the condensate.
  • the content of the component derived from the component (A) in the fiber treatment agent of the present invention is higher in shape due to the treated fiber.
  • it is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 3% by mass or more, still more preferably 5% by mass or more, and further. It is preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 30% by mass or less.
  • the content of the component derived from the component (A) in the fiber treatment agent of the present invention is preferably 0.1 to 80% by mass. It is more preferably 1 to 60% by mass, still more preferably 3 to 50% by mass, still more preferably 5 to 40% by mass, and even more preferably 5 to 30% by mass.
  • the content of the component derived from the component (A) in the fiber treatment agent of the present invention imparts higher shape durability and strength to the treated fiber. From the viewpoint of % Or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, still more preferably 20% by mass or less, still more preferably 10% by mass or less. That is, when the component (B) is the component (B3), the content of the component derived from the component (A) in the fiber treatment agent of the present invention is preferably 0.1 to 50% by mass, more preferably 0.2 to 0.2. It is 40% by mass, more preferably 0.3 to 30% by mass, still more preferably 0.5 to 20% by mass, and even more preferably 0.5 to 10% by mass.
  • Component (B) Specific phenolic compound
  • the component (B) is a phenol compound having an electron donating group at at least one position, preferably two positions at the meta position, and at least one position at the ortho position and the para position is a hydrogen atom.
  • the electron donating group at the meta position of the phenol compound may form a benzene ring together with an adjacent carbon atom, and the benzene ring may be further substituted with a hydroxyl group.
  • the molecular weight of the component (B) is preferably 110 or more, preferably 1000 or less, more preferably 700 or less, still more preferably 500 or less, from the viewpoint of good permeability into naturally derived fibers.
  • Examples of the phenol compound of the component (B) include the following components (B1), (B2) and (B3).
  • the component (B1) is a compound represented by the following general formula (1).
  • a 1 to A 4 may be the same or different, and may be a hydrogen atom, a hydroxyl group, a halogen atom, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a linear or branched alkyl group having 1 to 6 carbon atoms, or a branched chain alkyl group.
  • An alkenyl group, or a linear or branched alkoxy group or alkenyloxy group having 1 to 6 carbon atoms is shown.
  • component (B1) examples include resorcin, 2-methylresorcin, 4-chlororesorcin, pyrogallol and the like.
  • the component (B2) is a compound represented by the following general formula (2) or (3).
  • R 1 represents a hydrogen atom or a methyl group.
  • a 5 is a hydrogen atom, a linear or branched alkyl group or alkenyl group having 1 to 12 carbon atoms, an aralkyl group or arylalkenyl group having 7 to 12 carbon atoms which may have a substituent, and 1 to 1 carbon atoms.
  • 6 has a linear or branched alkoxy group or alkenyloxy group, a halogen atom or -CO-R 2 (R 2 has a linear or branched alkyl or alkenyl group having 1 to 12 carbon atoms, or a substituent.
  • An aromatic hydrocarbon group having 6 to 12 carbon atoms which may have an aralkyl group or an arylalkenyl group having 7 to 12 carbon atoms or a substituent may be used.
  • D represents a hydrogen atom, a hydroxyl group, a methyl group, or a linear or branched alkoxy group or alkenyloxy group having 1 to 12 carbon atoms.
  • E represents a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or alkenyl group having 1 to 6 carbon atoms, or a linear or branched alkoxy group or alkenyloxy group having 1 to 6 carbon atoms.
  • G represents a hydroxyl group, an alkyl group or an alkenyl group of a linear or branched chain having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, and n represents an integer of 0 to 2.
  • R 1 is a hydrogen atom or an alkyl group or alkenyl having 1 to 4 carbon atoms in the general formula (2) or (3) are preferable. Those that are hydrogen atoms are more preferable. Further, it is preferable that A 5 is a hydrogen atom, a hydroxyl group, a linear or branched alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and more preferably a hydrogen atom or a hydroxyl group.
  • D is a hydrogen atom, a hydroxyl group, a linear or branched alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • E is a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • Examples of such a compound include 1-naphthol, 2-naphthol, 3-methylnaphthalen-1-ol, naphthalene-1,5-diol, naphthalene-1,8-diol and the like.
  • Compound (B3) is a flavan-3-ol derivative represented by the following general formula (4).
  • R 3 indicates a hydrogen atom or a methyl group.
  • X represents a hydrogen atom, a hydroxyl group or a methoxy group.
  • R 4 represents an aromatic hydrocarbon group which may be substituted with up to 3 hydroxyl groups or methoxy groups and may form a fused ring with 1,3-dioxolane.
  • R 5 has an aromatic hydrocarbon group, or a hydroxyl group or a methoxy group, which may be substituted with up to three hydroxyl groups, methoxy groups, or hydroxyl groups or methoxy groups, or may form a fused ring with 1,3-dioxolane. Indicates an arylcarbonyloxy group or an aralkylcarbonyloxy group which may be substituted up to 3 groups.
  • the molecular weight of the compound represented by the general formula (4) is preferably 150 or more. Further, from the viewpoint of good permeability into the fiber, the molecular weight is preferably 1000 or less, more preferably 700 or less, and further preferably 500 or less.
  • Ingredients (B3) include non-gallates such as catechin, epicatechin, epigallocatechin, catechin gallate, epigallocatechin gallate, and epigallocatechin gallate (B3).
  • non-gallates such as catechin, epicatechin, epigallocatechin, catechin gallate, epigallocatechin gallate, and epigallocatechin gallate (B3).
  • examples thereof include gallates such as Epigallocatechin gallate), and the term "catechins” as used herein is a general term for these. Of these, one or more selected from catechin, epigallocatechin, and epigallocatechin gallate is preferable.
  • a mixture containing the above compounds such as tea extract can also be used.
  • the analysis of catechins in the mixture can be carried out by an analysis method suitable for the condition of the measurement sample among the commonly known analytical methods for non-polymer catechins.
  • HPLC liquid chromatography
  • the condensate of the component (A) and the component (B) formed in the naturally derived fiber makes the change in the shape of the naturally derived fiber after treatment with the fiber treatment agent of the present invention more remarkable.
  • the component (B) can be used alone or in combination of two or more types, and two or more types (B1) to (B3) can be used in combination.
  • One or more selected from (B1) and (B3) is preferable from the viewpoint of imparting high shape durability and durability to the naturally derived fiber and enhancing the tactile sensation, and elution of the component (A) from the treated fiber.
  • (B3) is more preferable from the viewpoint of suppressing the fiber cleaning process and improving the productivity in the factory and from the viewpoint of light coloring of the fiber and more suitable for the use of headdress products.
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention is preferably 0.1% by mass or more, more preferably from the viewpoint of imparting high shape durability and strength to the naturally-derived fiber after treatment. Is 1% by mass or more, more preferably 2.5% by mass or more, still more preferably 5% by mass or more, and in addition to the above viewpoints, from the viewpoint of improving the feel of the fiber surface, preferably 80% by mass or less. It is more preferably 60% by mass or less, further preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 35% by mass or less, still more preferably 30% by mass or less.
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention is from the viewpoint of imparting high shape durability and strength to the treated fiber and improving the feel of the fiber surface. It is preferably 0.1 to 80% by mass, more preferably 1 to 60% by mass, still more preferably 2.5 to 50% by mass, still more preferably 5 to 40% by mass, still more preferably 5 to 35% by mass, and even more preferably. It is 5 to 30% by mass.
  • a "component derived from a component (B)” means a component derived from the component (B) and a remaining component (B) in the condensate.
  • a mixture containing a component (B) such as a mixture containing catechins such as a tea extract
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention is higher in shape due to the treated fiber.
  • the content is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2.5% by mass or more, still more preferably 5% by mass or more. Also, it is preferably 60% by mass or less, more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 35% by mass or less, still more preferably 30% by mass or less.
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention is preferably 0.1 to 60% by mass. It is more preferably 1 to 50% by mass, still more preferably 2.5 to 40% by mass, still more preferably 5 to 35% by mass, and even more preferably 5 to 30% by mass.
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention imparts higher shape durability and strength to the treated fiber.
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention imparts higher shape durability and strength to the treated fiber.
  • From the viewpoint of improving the feel of the fiber surface preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, still more preferably 1% by mass or more, still more preferably 2. It is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, still more preferably 20% by mass or less, still more preferably 15% by mass or less. ..
  • the content of the component derived from the component (B) in the fiber treatment agent of the present invention is preferably 0.1 to 50% by mass, more preferably 0.2 to 0.2. It is 40% by mass, more preferably 0.5 to 30% by mass, still more preferably 1 to 20% by mass, still more preferably 2 to 15% by mass.
  • the component (B) is the component (B1) or the component (B2)
  • the content of the component derived from the component (A) and the component derived from the component (B) in the fiber treatment agent of the present invention is preferably 1% by mass or more, more preferably 5% by mass or more, still more preferably 10% by mass or more, still more preferably 20. It is preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less, from the viewpoint of improving the feel of the fiber surface. Even more preferably, it is 30% by mass or less.
  • the total content of the component derived from the component (A) and the component derived from the component (B) in the fiber treatment agent of the present invention is treated.
  • it is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2.5% by mass or more, still more preferably 4% by mass or more, still more.
  • It is preferably 5% by mass or more, and from the viewpoint of improving the feel of the fiber surface, it is preferably 50% by mass or less, more preferably 30% by mass or less, still more preferably 20% by mass or less, still more preferably 15% by mass. % Or less.
  • the molar ratio (A) / (B) of the component derived from the component (A) to the component derived from the component (B) in the fiber treatment agent of the present invention is a condensate of both formed in the naturally derived fiber. Therefore, from the viewpoint of further improving the shape sustainability and strength of the naturally-derived fiber after treatment, it is preferably 0.005 or more, more preferably 0.01 or more, still more preferably 0.05 or more, still more preferably 0.1 or more, and further. More preferably, it is 0.5 or more, and from the viewpoint of good feel, it is preferably less than 5, more preferably 4 or less, still more preferably 3 or less, still more preferably 2 or less.
  • the molar ratio (A) / (B) of the component derived from the component (A) to the component derived from the component (B) is the natural product after the treatment due to the condensate of both formed in the naturally derived fiber. From the viewpoint of further improving the shape sustainability and strength of the derived fiber and from the viewpoint of good feel, it is preferably 0.005 or more and less than 5, more preferably 0.01 to 4, still more preferably 0.05 to 3, and even more preferably. It is 0.1 to 2, and even more preferably 0.5 to 2.
  • the fiber treatment agent of the present invention uses water as a medium.
  • the content of the component (C) in the fiber treatment agent of the present invention is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, still more preferably 40% by mass or more. Further, it is preferably 99% by mass or less, more preferably 98% by mass or less, still more preferably 97% by mass or less, still more preferably 95% by mass or less. That is, the content of the component (C) in the fiber treatment agent of the present invention is preferably 10 to 99% by mass, more preferably 20 to 98% by mass, still more preferably 30 to 97% by mass, and even more preferably 40. It is ⁇ 95% by mass.
  • Component (D) Organic compound having a Hansen solubility parameter SP value of 16-40 MPa 1/2
  • a hard resin layer is formed on the surface of the naturally derived fiber, which is natural. Movements such as bending and stretching of the derived fiber are restricted, which not only hinders the elasticity (tenacity) of the fiber, but also may deteriorate the feel of the fiber surface.
  • the fiber treatment agent of the present invention has Hansen from the viewpoint of preventing the aggregation of the condensate oligomer composed of the components (A) and (B) produced in the reaction process and causing the increase in turbidity and facilitating the dissolution. It is preferable to contain an organic compound having an SP value of 16 MPa 1/2 or more and 40 MPa 1/2 or less (excluding organic salts and compounds having a molecular weight of 150 or less having an aldehyde group).
  • an organic compound having an SP value of 16 MPa 1/2 or more and 40 MPa 1/2 or less excluding organic salts and compounds having a molecular weight of 150 or less having an aldehyde group.
  • the SP value of the solubility parameter of Hansen is 25 in the DIY program using the software package HSPiP 4th Edition 4.1.07 based on Hansen Solubility Parameters: A User's Handbook, CRC Press, Boca Raton FL, 2007. It means ⁇ Tot (MPa 1/2 ) calculated at °C.
  • organic compounds having a Hansen solubility parameter SP value of 16.0 MPa 1/2 or more and 40.0 MPa 1/2 or less include monohydric alcohols, dihydric alcohols, dihydric alcohol derivatives, and trihydric or higher.
  • Polyhydric alcohols, lactams, imidazolidinones, pyrimidinones, lactones, alkylene carbonates, and other general-purpose organic solvents having an SP value within the above range can be mentioned.
  • Examples of monohydric alcohols ethanol (25.4), 1-propanol (22.9), isopropyl alcohol (22.3), 1-butanol (22.9)
  • Examples of dihydric alcohols ethylene glycol (31.6), diethylene glycol (29.2), triethylene glycol (26.1), tetraethylene glycol (24.3), pentaethylene glycol (23.1), hexaethylene glycol (22.2), propylene glycol (31.7) ), 1-Dipropylene glycol (26.0), Tripropylene glycol (23.4)
  • Examples of dihydric alcohol derivatives dipropylene glycol monomethyl ether (21.1), dipropylene glycol dimethyl ether (17.8), dipropylene glycol diacetate (19.0), dipropylene glycol monomethyl ether acetate (18.5) ⁇
  • Examples of trihydric alcohols dipropylene glycol monomethyl ether (21.1), dipropylene glycol dimethyl ether (17.8), dipropylene glycol diacetate (19.0), dipropylene glycol monomethyl
  • the condensate consisting of the components (A) and (B) produced in the reaction process and causing an increase in turbidity can be well dissolved so that the turbidity can be kept low for a longer period of time.
  • the SP value of the Hansen solubility parameter is preferably 35.8 MPa 1/2 or less, more preferably 34.7 MPa 1/2 or less, and even more preferably 29.2 MPa 1/2 or less. From the same viewpoint, those having 17.8 MPa 1/2 or more are preferable, those having 21.1 MPa 1/2 or more are more preferable, and those having 22.0 MPa 1/2 or more are further preferable.
  • dihydric alcohol lactam and imidazolidinone are preferred, with diethylene glycol (29.2), triethylene glycol (26.1), N-methylpyrrolidone (22.0), 1,3-dimethyl-2-imidazolidinone (22.3) and At least one selected from DMDM hydantoin (28.1) is more preferred.
  • Ingredient (D) can be used alone or in combination of two or more.
  • the content of the component (D) in the fiber treatment agent of the present invention is preferably 10% by mass or more, more preferably 15% by mass, from the viewpoint of maintaining the turbidity of the fiber treatment agent at 1000 NTU or less for a longer period of time.
  • the above is more preferably 25% by mass or more, and the shape of the naturally-derived fiber after treatment is formed by the condensate of the component (A) and the component (B) formed in the naturally-derived fiber by efficiently advancing the condensation reaction. From the viewpoint of further improving durability and strength, it is preferably 80% by mass or less, more preferably 60% by mass or less, and further preferably 45% by mass or less.
  • the fiber treatment agent of the present invention contains a sulfur-containing reducing agent from the viewpoint of improving the heat-resistant temperature of naturally-derived fibers after treatment, suppressing coloring, and suppressing an increase in turbidity of the fiber treatment agent during heat treatment. Is preferable.
  • Examples of the component (E) include sulfites and thiol compounds.
  • the sulfite sodium sulfite and sodium pyrosulfite are preferable
  • the thiol compound a compound having a carboxy group (for example, thioglycolic acid) or an amino group (for example, cysteamine) causes yellowish coloring and is suitable as a headdress product.
  • Thioglycerin and mesna sodium 2-mercaptoethanesulfonate
  • sodium sulfite is preferable.
  • Ingredient (E) can be used alone or in combination of two or more.
  • the content of the component (E) in the fiber treatment agent of the present invention is preferably 0.1% by mass or more, more preferably 0.5, from the viewpoint of improving the heat resistant temperature, suppressing coloring, and suppressing the increase in turbidity during the heat treatment. It is preferably 20% by mass or more, more preferably 2.0% by mass or more, and preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5.0% by mass, from the viewpoint of suppressing a decrease in fiber strength due to the reducing action. It is as follows.
  • the molar ratio (E) / (A) of the component (E) to the component (A) is the effect of improving the heat resistance of the fiber after the treatment by the component (E) and the effect of suppressing coloring, and the turbidity of the fiber treatment agent. From the viewpoint of sufficiently exhibiting the effect of suppressing the increase, it is preferably 0.1 or more, more preferably 0.3 or more, still more preferably 0.5 or more, and from the viewpoint of suppressing the decrease in fiber strength due to the reducing action, it is preferably 3.0 or less. , More preferably 1.5 or less, still more preferably 1.0 or less.
  • the fiber treatment agent of the present invention may contain a cationic surfactant as long as the effects of the present invention are not impaired.
  • the cationic surfactant is preferably a monolong-chain alkyl quaternary ammonium salt having one alkyl group having 8 to 24 carbon atoms and three alkyl groups having 1 to 4 carbon atoms.
  • At least one monolong-chain alkyl quaternary ammonium surfactant is selected from the compounds represented by the following general formula.
  • R 4 is a saturated or unsaturated linear or branched alkyl group having 8 to 22 carbon atoms, R 8 -CO-NH- (CH 2 ) m- or R 8 -CO-O- (CH). 2 ) m- (R 8 indicates a saturated or unsaturated linear or branched alkyl chain having 7 to 21 carbon atoms, and m indicates an integer of 1 to 4), R 5 , R 6 and R.
  • X- indicates a chloride ion, a bromide ion, a metosulfate ion or an etosulfate ion.
  • Suitable cationic surfactants include, for example, long-chain quaternary ammonium compounds such as cetyltrimethylammonium chloride, myristyltrimethylammonium chloride, behentrimonium chloride, cetyltrimethylammonium bromide, stearamidopropyltrimonium chloride. These can be used alone or as a mixture thereof.
  • the content of the cationic surfactant in the fiber treatment agent of the present invention is preferably 0.05% by mass or more, more preferably from the viewpoint of improving the feel of the naturally derived fiber after treatment and further improving the effect of the present invention. Is 0.1% by mass or more, preferably 10% by mass or less, and more preferably 5% by mass or less.
  • the fiber treatment agent of the present invention may contain silicone from the viewpoint of improving the feel of naturally derived fibers after treatment and improving the cohesiveness.
  • silicone one or more selected from dimethylpolysiloxane and amino-modified silicone are preferable.
  • any cyclic or acyclic dimethylpolysiloxane polymer can be used, and examples thereof include SH200 series, BY22-019, BY22-020, BY11-026, B22-029, BY22-034, BY22. -050A, BY22-055, BY22-060, BY22-083, FZ-4188 (all from Toray Dow Corning Co., Ltd.), KF-9088, KM-900 series, MK-15H, MK-88 (all from Shin-Etsu Chemical) Industrial Co., Ltd.).
  • any silicone having an amino group or an ammonium group can be used, and examples thereof include an amino-modified silicone oil in which all or part of the terminal hydroxyl groups are end-sealed with a methyl group or the like, and a terminal seal. Amodimethicone that has not been stopped can be mentioned. From the viewpoint of improving the feel of naturally-derived fibers after treatment and improving the cohesiveness, preferable amino-modified silicones include compounds represented by the following formulas.
  • R' represents a hydrogen atom, a hydroxyl group or RX
  • R X represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms
  • J represents R X , R "-(NHCH 2 ).
  • CH 2 ) a Indicates NH 2 , OR X or hydroxyl group
  • a indicates a number of 0 to 3
  • b and c indicate the sum of the numbers.
  • the number is 10 or more and less than 20000, preferably 20 or more and less than 3000, more preferably 30 or more and less than 1000, and further preferably 40 or more and less than 800.
  • suitable commercially available amino-modified silicone products include SF8452C, SS3551 (all from Toray Dow Corning Co., Ltd.), KF-8004, KF-867S, KF-8015 (all from Shin-Etsu Chemical Co., Ltd.), etc.
  • Examples include amodimethicone emulsions such as amino-modified silicone oil, SM8704C, SM8904, BY22-079, FZ-4671, and FZ4672 (all from Toray Dow Corning Co., Ltd.).
  • the content of silicone in the fiber treatment agent of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass, from the viewpoint of improving the feel of naturally derived fibers after treatment and further improving the effect of the present invention. As mentioned above, it is more preferably 0.5% by mass or more, preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5% by mass or less.
  • the fiber treatment agent of the present invention can contain a cationic polymer from the viewpoint of improving the feel of naturally derived fibers after treatment.
  • the cationic polymer means a polymer having a cationic group or a group that can be ionized by the cationic group, and also includes an amphoteric polymer that becomes cationic as a whole. That is, an aqueous solution containing an amino group or an ammonium group in the side chain of the polymer chain or containing a diallyl quaternary ammonium salt as a constituent unit, for example, a cationized cellulose derivative, a cationic starch, a cationized guar gum derivative, or a diallyl quaternary ammonium salt. Examples thereof include a polymer or copolymer of an ammonium salt and a quaternary polyvinylpyrrolidone derivative.
  • diallyl quaternary ammonium is used from the viewpoint of improving the softness, smoothness and finger passage during rinsing and shampooing, the cohesiveness and moisturizing properties during drying, and the stability of the agent.
  • One or more selected from polymers containing salts as constituent units, quaternary polyvinylpyrrolidone derivatives, and cationized cellulose derivatives are preferable, and polymers or copolymers of diallyl quaternary ammonium salts and cationized cellulose derivatives are selected.
  • One kind or two or more kinds are more preferable.
  • polymer or copolymer of a suitable diallyl quaternary ammonium salt examples include dimethyldiallyl ammonium chloride polymer (polyquaternium-6, for example, Marcourt 100; Lubrizol Advanced Materials), dimethyldiallyl ammonium chloride /.
  • Acrylic acid copolymer Polyquaternium-22, eg, Marcourt 280, 295; Lubrisol Advanced Materials
  • Dimethyldiallyl ammonium chloride / acrylamide polymer Polyquaternium-7, eg, Marcourt 550; Lubrisol Advanced Materials. Materials Co., Ltd.) and the like.
  • polyquaternium 11 a polymer obtained by polymerizing a vinylpyrrolidone copolymer and dimethylaminoethyl methacrylate (polyquaternium 11, for example, Gaffcut 734, Gaffcut 755, Gaffcut 755N (above, Ashland)).
  • suitable cationized cellulose include polymers in which hydroxycellulose is loaded with glycidyltrimethylammonium chloride (polyquaternium 10, for example, Leoguard G, GP (above, Lion), polymers JR-125, JR-400, and the same. JR-30M, LR-400, LR-30M (above, Amercol), hydroxyethyl cellulose dimethyldiallylammonium chloride (polyquaternium-4, for example, Cellcoat H-100, L-200 (above, Axonobel)) ) Etc. can be mentioned.
  • the content of the cationic polymer in the fiber treatment agent of the present invention is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, still more preferably 0.05% by mass from the viewpoint of improving the feel of naturally derived fibers after treatment. % Or more, preferably 20% by mass or less, and more preferably 10% by mass or less.
  • the fiber treatment agent of the present invention may contain an antioxidant such as ascorbic acid; a pH adjuster such as sodium hydroxide, potassium hydroxide, phosphoric acid and hydrochloric acid.
  • an antioxidant such as ascorbic acid
  • a pH adjuster such as sodium hydroxide, potassium hydroxide, phosphoric acid and hydrochloric acid.
  • the fiber treatment agent of the present invention is preferably as low as possible in turbidity from the viewpoint of improving the elasticity (toughness) of naturally derived fibers and improving the feel of the fiber surface, and the turbidity of the fiber treatment agent is It is 1000 NTU or less, preferably 500 NTU or less, more preferably 100 NTU or less, and further preferably 20 NTU or less.
  • the turbidity of the above-mentioned fiber treatment agent refers to the turbidity derived from the condensate composed of the components (A) and (B), and when other components that cause turbidity are contained, the turbidity is caused by the turbidity.
  • the quantification of the condensate can be quantified by, for example, a derivatization pyrolysis GC / MS method after filtering with a membrane filter having a hole diameter of 0.1 ⁇ m.
  • the pH of the fiber treatment agent of the present invention is preferably 3.0 or more, more preferably 3.5 or more, still more preferably 4.0 or more, and preferably 11.0 or less, more preferably 9.0, from the viewpoint of suppressing damage to naturally derived fibers. Below, it is more preferably 7.0 or less.
  • the pH in the present invention is a value at 25 ° C. That is, the pH of the fiber treatment agent of the present invention is preferably 3.0 to 11.0, more preferably 3.5 to 9.0, and even more preferably 4.0 to 7.0, from the viewpoint of suppressing damage to naturally derived fibers.
  • the storage temperature can be cooled or the voids in the storage container can be filled with nitrogen.
  • the storage temperature is preferably 1 ° C. or higher, more preferably 2 ° C. or higher, still more preferably 5 ° C. or higher, and prevents oxidative coloring and unintended reaction progress from the viewpoint of preventing freezing and recrystallization. From the viewpoint of the above, it is preferably 25 ° C. or lower, more preferably 20 ° C. or lower, and further preferably 15 ° C. or lower.
  • the naturally-derived fiber is shaped into a naturally-derived fiber while maintaining a high degree of elasticity (toughness) of the naturally-derived fiber. It can impart durability and high durability.
  • step (i) A step of immersing naturally-derived fibers in the fiber treatment agent of the present invention and treating the treatment agent while maintaining the turbidity of 1000 NTU or less.
  • the fiber treatment agent of the present invention may be applied to the fiber as it is, but the elasticity of the fiber can be improved by applying the fiber treatment agent to the fiber after heating for a certain period of time so as not to increase the turbidity of the treatment agent. Can be enhanced. Therefore, the following step (0) may be included before the step (i). (0) Step of heating the fiber treatment agent
  • the heating temperature in the step (0) is preferably 40 ° C. or higher, more preferably 45 ° C. or higher, still more preferably 50 ° C. or higher, and the heating can be stopped at an appropriate point from the viewpoint of improving productivity. From the viewpoint of the above, it is preferably 100 ° C. or lower, more preferably 80 ° C. or lower, and further preferably 70 ° C. or lower.
  • the heating time in step (0) is the improvement of elasticity with respect to naturally derived fibers when the heating time immediately after mixing and preparing the components is heated and the heating time until the treatment agent exceeds the turbidity of 1000 NTU is defined as T. From the viewpoint of exhibiting the effect, it is preferably 0.2 T or more, more preferably 0.3 T or more, further preferably 0.4 T or more, and from the viewpoint of exerting the processing capacity for naturally derived fibers for a long time, preferably 0.8 T or less. , More preferably 0.7 T or less, still more preferably 0.6 T or less.
  • the naturally occurring fibers immersed in the fiber treatment agent may be dry or wet.
  • the amount of the fiber treatment agent for immersing the naturally-derived fiber is a bath ratio (mass of the fiber treatment agent / mass of the naturally-derived fiber) with respect to the mass of the naturally-derived fiber, and is preferably 2 or more, more preferably 3 or more, still more preferably. Is 5 or more, more preferably 10 or more, still more preferably 20 or more, still preferably 500 or less, more preferably 250 or less, still more preferably 100 or less. That is, the bath ratio is preferably 2 to 500, more preferably 3 to 250, still more preferably 5 to 100, still more preferably 10 to 100, and even more preferably 20 to 100.
  • naturally-derived fibers may be fixed in advance with a curler or the like, and then immersed in the fiber treatment agent of the present invention under heating. By doing so, it is possible to simultaneously impart a desired shape to naturally-derived fibers in addition to shape durability and high durability.
  • Immersion of naturally-derived fibers in the fiber treatment agent in step (i) is preferably performed under heating, and this heating is performed by heating the fiber treatment agent.
  • This heating may be performed by immersing the naturally-derived fiber in the heated fiber treatment agent, or by immersing the naturally-derived fiber in the low-temperature fiber treatment agent and then heating the fiber.
  • the temperature of the fiber treatment agent increases the interaction between the component (A), the component (B) and the fiber constituent molecule in the naturally derived fiber, for example, a protein molecule, and also in the naturally derived fiber, the component (A) and the component (
  • the temperature is preferably 20 ° C. or higher, more preferably 35 ° C.
  • the naturally derived fiber is denatured by heat. It is preferably less than 100 ° C., more preferably 80 ° C. or lower, still more preferably 70 ° C. or lower, still more preferably 60 ° C. or lower, in order to prevent deterioration.
  • the fiber treatment agent of the present invention is transparent at the beginning of preparation, but the turbidity increases as the condensate formed by the reaction of the component (A) and the component (B) in the fiber treatment agent grows.
  • Step (i) is preferably performed in a state where the turbidity is as low as possible from the viewpoint of further increasing the elasticity (toughness) of the naturally derived fiber, and the turbidity of the fiber treatment agent during the treatment is preferably 1000 NTU or less. It is more preferably 500 NTU or less, still more preferably 100 NTU or less, and even more preferably 20 NTU or less.
  • the immersion time in step (i) is the improvement of elasticity with respect to naturally derived fibers when the heating time immediately after mixing and preparing the components is heated and the heating time until the treatment agent exceeds the turbidity of 1000 NTU is defined as T. From the viewpoint of exhibiting the effect, it is preferably 0.3T or more, more preferably 0.4T or more, still more preferably 0.5T or more, and in order to suppress damage to naturally derived fibers, it is preferably 0.95T or less, more preferably 0.90. It is T or less, more preferably 0.85 T or less.
  • the specific immersion time is appropriately adjusted depending on the heating temperature used, but for example, from the viewpoint of exhibiting the effect of improving the elasticity of naturally derived fibers, it is preferably 15 minutes or more, more preferably 30 minutes or more, still more preferably. It is 1 hour or more, and is preferably 48 hours or less, more preferably 24 hours or less, still more preferably 12 hours or less in order to suppress damage to naturally derived fibers.
  • Step (i) is preferably performed in an environment where evaporation of water is suppressed.
  • Specific means for suppressing the evaporation of water include a method of covering a container of a fiber treatment agent in which naturally-derived fibers are immersed with a film-like substance made of a material that does not allow water vapor to pass through, a cap, a lid, or the like.
  • the naturally derived fibers may or may not be rinsed, but rinsing is preferable from the viewpoint of preventing the feeling of the naturally derived fibers from being deteriorated by the excess polymer.
  • these treatments allow the components (A) and (B) to permeate into the naturally-derived fibers and cause an interaction with the fiber-constituting molecules in the naturally-derived fibers, for example, protein molecules.
  • a condensate of the component (A) and the component (B) is formed in the naturally derived fiber. Therefore, the shape of the naturally derived fiber treated by the method of the present invention does not collapse even after washing.
  • a hard resin layer is formed on the surface of the naturally derived fiber, which makes it difficult to maintain a high degree of elasticity (tenacity) of the naturally derived fiber. Since it is difficult to secure a good feel on the fiber surface, it is preferable to remove the naturally derived fiber from the treatment agent before the turbidity of the treatment agent exceeds 1000 NTU.
  • the turbidity of the treatment agent can be confirmed by the above-mentioned turbidity measurement method by appropriately collecting a sample from the treatment agent. If the treated naturally-derived fiber that has been taken out is insufficiently treated, the process (i) may be performed again.
  • step (i) is followed by the following step (ii), and the step (i) and the step (ii) are repeated two or more times.
  • step (ii) The process of removing naturally derived fibers from the treatment agent before the turbidity of the treatment agent exceeds 1000 NTU.
  • step (ii) After removing the naturally derived fiber from the treatment agent in the above step (ii), it is preferable to rinse the surface of the naturally derived fiber to wash away the insoluble condensate. That is, it is preferable to perform the following step (iii) after the step (ii). (iii) Rinsing process of taken out naturally derived fiber
  • the rinsing composition may be composed of only the component (D), or may contain water in addition to the component (D).
  • the content of the component (D) in the rinsing composition when water is contained is preferably 60% by mass or more, more preferably 80% by mass or more, and even more preferably 95% by mass or more.
  • the fiber treatment method of the present invention further provides decolorization, dyeing, surface finishing for imparting hydrophobicity and low friction, and further fiber elasticity (tenacity).
  • Each one or more treatments selected from the heat treatments for improvement may be additionally performed.
  • the decolorization and dyeing treatments may be performed before or after the above-mentioned steps (i) to (iii), and between the steps (i) to (iii). You may go to. It is also possible to add multiple treatments in combination, and if both bleaching and dyeing are to be added, any treatment may be performed first, except that bleaching must be performed prior to dyeing. , Another treatment can be performed between bleaching and dyeing.
  • the surface finish for imparting hydrophobicity and low friction, and the heat treatment for further improving the fiber elasticity (tenacity) after the above-mentioned steps (i) to (iii).
  • the surface finish for imparting hydrophobicity and low friction, and the heat treatment for further improving fiber elasticity (tenacity) are performed at the stage after steps (i) to (iii) as described above. If so, the processing order of decolorization and dyeing is not particularly limited.
  • either of the surface finish for imparting hydrophobicity and low friction and the heat treatment for further improving the fiber elasticity (tenacity) may be performed first.
  • Decolorization is performed by immersing naturally derived fibers in a decolorizing agent composition containing an alkaline agent, an oxidizing agent and water.
  • the decolorizing agent composition is usually a two-dosage form, the first agent containing an alkaline agent and water, and the second agent containing an oxidizing agent and water.
  • the two agents are usually stored separately and mixed prior to dipping the naturally occurring fibers.
  • Suitable alkaline agents include, for example, ammonia and salts thereof; alkanolamines (monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol, etc.) and salts thereof; alcandiamine (1,3). -Propanediamine etc.) and salts thereof; and carbonates (guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogencarbonate, potassium hydrogencarbonate, etc.); and mixtures thereof include, but are not limited to.
  • the content of the alkaline agent in the decolorizing agent composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass. % Or more, preferably 15% by mass or less, more preferably 10% by mass or less, still more preferably 7.5% by mass or less.
  • Suitable oxidizing agents include, but are not limited to, hydrogen peroxide, urea peroxide, melamine peroxide and sodium bromate. Among these oxidizing agents, hydrogen peroxide is preferable.
  • the content of the oxidizing agent in the decolorizing agent composition is preferably 1% by mass or more, more preferably 2% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably. It is 9% by mass or less.
  • the pH of the second agent at 25 ° C. is preferably 2 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 or less. be. This pH can be adjusted with a suitable buffer.
  • the pH of the decolorizing agent composition at 25 ° C. is preferably 6 or more, more preferably 6.5 or more, still more preferably 6.8 or more, and preferably 11 or less, more preferably 10.5 or less, still more preferably 10 or less. ..
  • the dyeing agent composition contains a dye, and may optionally contain an alkaline agent, an acid, an oxidizing agent, or the like.
  • the dye include a direct dye, an oxidation dye and a combination thereof.
  • direct dye is not particularly limited, and any direct dye suitable for dyeing can be used.
  • direct dyes include anionic dyes, nitro dyes, disperse dyes, cationic dyes, and dyes having an azophenol structure selected from the group consisting of HC Red 18, HC Blue 18 and HC Yellow 16 below, and these. Examples include salts, as well as mixtures thereof.
  • cationic dyes include basic blue 6, basic blue 7, basic blue 9, basic blue 26, basic blue 41, basic blue 99, basic brown 4, basic brown 16, basic brown 17, natural brown 7, and basic green 1.
  • Examples include, but are not limited to, Yellow 87 and mixtures thereof.
  • Basic Red 51, Basic Orange 31, Basic Yellow 87 and mixtures thereof are particularly preferred.
  • anionic dyes include acid black 1, acid blue 1, acid blue 3, food blue 5, acid blue 7, acid blue 9, acid blue 74, acid orange 3, acid orange 4, acid orange 6, and acid orange 7.
  • Acid Orange 10 Acid Red 1, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 33, Acid Red 50, Acid Red 52, Acid Red 73, Acid Red 87, Acid Red 88, Acid Red 92, Acid Red 155, Acid Red 180, Acid Violet 2, Acid Violet 9, Acid Violet 43, Acid Violet 49, Acid Yellow 1, Acid Yellow 10, Acid Yellow 23, Acid Yellow 3, Food Yellow No.8, D & C Brown No.1 , D & C Green No.5, D & C Green No.8, D & C Orange No.4, D & C Orange No.10, D & C Orange No.11, D & C Red No.21, D & C Red No.27, D & C Red No.33, D & C Violet 2, D & C Yellow No.7, D & C Yellow No.8, D & C Yellow No.10, FD & C Red 2, FD & C Red
  • the preferred anionic dyes are Acid Black 1, Acid Red 52, Acid Violet 2, Acid Violet 43, Acid Red 33, Acid Orange 4, Acid Orange 7, Acid Red 27, Acid Yellow 3 and Acid Yellow 10 and these. It's salt. More preferred anionic dyes are Acid Red 52, Acid Violet 2, Acid Red 33, Acid Orange 4 and Acid Yellow 10, and salts and mixtures thereof.
  • nitro dyes examples include HC Blue No. 2, HC Blue No. 4, HC Blue No. 5, HC Blue No. 6, HC Blue No. 7, HC Blue No. 8, HC Blue No. 9, and HC. Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.
  • disperse dye examples include, but are not limited to, Disperse Blue 1, Disperse Black 9, Disperse Violet 1 and mixtures thereof.
  • direct dyes can be used alone or in combination of two or more, and direct dyes having different ionic properties can also be used in combination.
  • the content of the direct dye in the dye composition is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, still more preferably 0.05% by mass or more, and blended, from the viewpoint of obtaining sufficient dyeability. From the viewpoint of sex, it is preferably 10% by mass or less, more preferably 7.5% by mass or less, still more preferably 5.0% by mass or less, still more preferably 3.0% by mass or less.
  • the dyeing composition contains only the direct dye as a dye, no oxidizing agent is required to dye the naturally occurring fiber, but if the color of the naturally occurring fiber is to be lightened, the oxidizing agent is contained in the composition. You can also let it.
  • the dye composition contains an oxidative dye
  • the first agent contains an oxidative dye intermediate (precursor and coupler) and an alkaline agent
  • the second agent contains an oxidant such as hydrogen peroxide.
  • the two agents are usually stored separately and mixed prior to dipping the naturally occurring fibers.
  • the oxidation dye intermediate is not particularly limited, and any known precursor or coupler usually used for dyeing products can be preferably used.
  • Precursors include, for example, paraphenylenediamine, toluene-2,5-diamine, 2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, N-phenylparaphenylenediamine, N, N-bis (2-).
  • coupler examples include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) anisole, 2,4-diamino-5-methylphenetol, and 2,4-diamino-.
  • the contents of the precursor and the coupler in the dye composition are preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and preferably 10% by mass or less, more preferably 7.5% by mass or less, respectively. More preferably, it is 5% by mass or less.
  • the dyeing agent composition contains an oxidative dye, it further contains an alkaline agent.
  • alkaline agents include, for example, ammonia and salts thereof; alkanolamines (monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol, etc.) and salts thereof; alcandiamine (1,3). -Propanediamine etc.) and salts thereof; and carbonates (guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogencarbonate, potassium hydrogencarbonate, etc.); and mixtures thereof include, but are not limited to.
  • the content of the alkaline agent in the dyeing agent composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, and preferably 15% by mass or less, more preferably. It is 10% by mass or less, more preferably 7.5% by mass or less.
  • the composition containing the oxidant is stored separately from the composition containing the oxidative dye (first agent) and mixed before immersing the naturally derived fiber.
  • Suitable oxidizing agents include, but are not limited to, hydrogen peroxide, urea peroxide, melamine peroxide and sodium bromate. Among these oxidizing agents, hydrogen peroxide is preferable.
  • the content of the oxidizing agent in the dyeing agent composition is preferably 1% by mass or more, more preferably 2% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably. It is 9% by mass or less.
  • the pH of the second agent at 25 ° C. is preferably 2 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 or less. Is. This pH can be adjusted with a suitable buffer.
  • the pH of the dyeing agent composition obtained by mixing the first agent and the second agent at 25 ° C. is preferably 6 or more, more preferably 6.5 or more, still more preferably 6.8 or more, and preferably 11 or less. It is preferably 10.5 or less, more preferably 10 or less.
  • the dyeing agent composition contains an oxidative dye, it can further contain the direct dye exemplified above.
  • the dyeing agent composition can preferably further contain the following surfactants, conditioning components and the like, and can preferably take the form of a solution, emulsion, cream, paste and mousse.
  • the temperature of the dyeing composition is preferably 0 ° C. or higher, more preferably 10 ° C. or higher, still more preferably 10 ° C. or higher, from the viewpoint of efficiently permeating and diffusing the dyeing agent composition into naturally derived fibers and further enhancing the dyeing effect. It is 20 ° C. or higher, preferably 90 ° C. or lower, and more preferably 80 ° C. or lower.
  • the surface finish for imparting hydrophobicity and reducing friction is a step after the above-mentioned steps (i) to (iii), and if the surface finish for improving the feel of the step (iv) is performed, the step (iv). ), By immersing naturally derived fibers in the surface finishes shown below.
  • the surface finishing agent contains the following component (F) and water.
  • F Epoxyaminosilane copolymer which is a reaction product of the following compounds (a) to (d)
  • Ether (c) Aminopropyltrialkoxysilane
  • Component (F): Epoxy Aminosilane Copolymer The epoxy aminosilane copolymer of the component (F) is a reaction product of the compounds (a) to (d) shown below.
  • the compound (a) is a polysiloxane containing at least two oxylanyl groups or oxetanyl groups, and examples thereof include those represented by the following general formula (5).
  • R represents a hydrocarbon group having 1 to 6 carbon atoms which may contain a hetero atom and having an oxylanyl group or an oxetanyl group at the terminal, and x represents a number of 1 to 1000.
  • the compound (b) is a polyether containing at least two oxylanyl groups or oxetanyl groups, and examples thereof include those represented by the following general formula (6).
  • R has the same meaning as described above, y is 1 to 100, z is 0 to 100, and y + z is 1 to 200. ]
  • R includes oxylanylmethyl group (glycidyl group), oxylanylmethoxy group (glycidyloxy group), oxylanylmethoxypropyl group (glycidyloxypropyl group), oxetanylmethyl group, oxetanylmethoxy group, oxetanylmethoxypropyl group, Examples thereof include 3-ethyloxetanylmethyl group, and among them, a hydrocarbon group having an oxylanyl group and which may contain a heterooxygen atom and having 1 to 4 carbon atoms is preferable, and an oxylanylmethyl group (glycidyl group) and an oxyla are preferable. At least one selected from an enylmethoxy group (glycidyloxy group) and an oxylanylmethoxypropyl group (glycidyloxypropyl group) is
  • Compound (c) is aminopropyltrialkoxysilane.
  • alkoxy group in the compound (c) include those having 1 to 6 carbon atoms, preferably those having 2 to 4 carbon atoms, and more preferably those having 3 carbon atoms, and among them, an isopropoxy group is preferable.
  • Examples of the compound (c) include aminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminopropyltripropoxysilane, aminopropyltriisopropoxysilane, aminopropyltributoxysilane, and aminopropyltritert-butoxysilane. However, aminopropyltriisopropoxysilane is preferable.
  • Compound (c) can be used alone or in combination of two or more.
  • Compound (d) is a compound selected from the group consisting of the following primary and secondary amines.
  • -Primary amines methylamine, ethylamine, propyleneamine, ethanolamine, isopropylamine, butylamine, isobutylamine, hexylamine, dodecylamine, oleylamine, aniline, aminopropyltrimethylsilane, aminopropyltriethylsilane, aminomorpholin, aminoethyl Dimethylamine, aminoethyldiethylamine, aminoethyldibutylamine, aminopropyldimethylamine, aminopropyldibutylamine, aminopropyldibutylamine, benzylamine, naphthylamine, 3-amino-9-ethylcarbazole, 1-aminoheptafluorohexane, 2,2 , 3,3,4,4,5,5,6,6,7,7,8,8,8,
  • primary amines are preferred, and one selected from aminopropyldiethylamine, aminopropyldimethylamine, and aminopropyldibutylamine is even more preferred.
  • Compound (d) can be used alone or in combination of two or more.
  • the reaction of compounds (a) to (d) is carried out by refluxing in a solvent such as isopropanol for a certain period of time.
  • a solvent such as isopropanol
  • the molar ratio of the oxylanyl group or the oxetanyl group of the compounds (a) and (b) to the amino group of the compound (c) is preferably 1 or more, more preferably 1.1 or more, still more preferably 1.2 or more, and also. It is preferably 4 or less, more preferably 3.9 or less, and further preferably 3.8 or less.
  • component (F) examples include those having the INCI name of Polysilicone-29, and an example of a commercially available product thereof is Silsoft CLX-E (effective content 15% by mass, dipropylene) of Momentive Performance Materials. Glycol and water included).
  • the content of the component (F) in the surface finishing agent is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.10% by mass or more, from the viewpoint of imparting sufficient hydrophobicity to naturally derived fibers. It is more preferably 0.20% by mass or more, and from the viewpoint of not giving a sticky feel, it is preferably 15.00% by mass or less, more preferably 10.00% by mass or less, still more preferably 8.00% by mass or less, still more preferably 6.00% by mass. It is as follows.
  • the pH of the surface finishing agent at 25 ° C. is preferably in the following range from the viewpoint of increasing the reaction rate of the trialkoxysilane portion of the component (F) in the acidic region or the basic region.
  • the surface finishing agent is in an acidic region, it is preferably 1 or more, more preferably 1.5 or more, still more preferably 2 or more, preferably 5 or less, more preferably 4.0 or less, still more preferably 3.5 or less.
  • the surface finishing agent is a basic region, it is preferably 7 or more, more preferably 7.5 or more, still more preferably 8.0 or more, preferably 11 or less, more preferably 10.5 or less, still more preferably 10 or less. Is.
  • the surface finishing agent may appropriately contain a pH adjusting agent.
  • a pH adjuster as an alkaline agent, an alkanolamine such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol or a salt thereof; an alkanediamine such as 1,3-propanediamine or a salt thereof. Salts; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like; hydroxides such as sodium hydroxide and potassium hydroxide can be used.
  • an inorganic acid such as hydrochloric acid and phosphoric acid
  • a hydrochloride such as monoethanolamine hydrochloride
  • a phosphate such as monopotassium dihydrogen phosphate and disodium monohydrogen phosphate
  • an organic acid such as lactic acid and malic acid. Acids and the like can be used.
  • the amount of the surface finishing agent for immersing the naturally-derived fiber is a bath ratio (mass of the surface finishing agent / mass of the naturally-derived fiber) to the mass of the naturally-derived fiber, and is preferably 2 or more, more preferably 5 or more, still more preferably. It is 10 or more, preferably 100 or less, more preferably 50 or less, still more preferably 20 or less.
  • the naturally derived fiber can be heated while being stretched by applying tension.
  • the fiber draw ratio during heating is preferably 0.1% or more, more preferably 0.2% or more, still more preferably 0.5% or more, and damage to the fiber, from the viewpoint of more effectively improving the elasticity of the fiber. From the viewpoint of suppression, it is preferably 10% or less, more preferably 5% or less, still more preferably 2% or less.
  • the heating temperature is preferably 120 ° C. or higher, more preferably 140 ° C. or higher, still more preferably 160 ° C. or higher, from the viewpoint of more effectively improving the elasticity of the fiber, and from the viewpoint of suppressing damage to the fiber. It is preferably 240 ° C. or lower, more preferably 220 ° C. or lower, and further preferably 200 ° C. or lower.
  • the heating time is preferably 1 second or longer, more preferably 3 seconds or longer, still more preferably 5 seconds or longer, from the viewpoint of more effectively improving the elasticity of the fiber, and from the viewpoint of suppressing damage to the fiber. It is preferably 60 seconds or less, more preferably 30 seconds or less, still more preferably 20 seconds or less.
  • the draw ratio at this time is preferably 0.1% or more, more preferably 0.2% or more, still more preferably 0.5% or more, and suppresses damage to the fibers, from the viewpoint of more effectively improving the elasticity of the fibers. From the viewpoint of the above, it is preferably 10% or less, more preferably 5% or less, still more preferably 2% or less.
  • the water temperature is preferably 5 ° C. or higher, more preferably 20 ° C. or higher, still more preferably 30 ° C. or higher from the viewpoint of more effectively improving the elasticity of the fiber, and from the viewpoint of suppressing damage to the fiber. It is preferably 80 ° C. or lower, more preferably 60 ° C. or lower, and even more preferably 50 ° C. or lower.
  • the standing time in water is preferably 1 minute or longer, more preferably 5 minutes or longer, still more preferably 30 minutes or longer, and damage to the fibers, from the viewpoint of more effectively improving the elasticity of the fibers. From the viewpoint of suppression, it is preferably 48 hours or less, more preferably 24 hours or less, still more preferably 3 hours or less.
  • composition containing the above-mentioned component (E) for the purpose of suppressing or removing coloration in the naturally-derived fiber subjected to the above treatment.
  • the preferred component (E) is the same as described above.
  • the composition is preferably an aqueous solution of the component (E).
  • the pH of this composition is preferably 2.0 or more, more preferably 3.0 or more, still more preferably 4.0 or more, and preferably 9.0 or less, more preferably 7.0 or more, from the viewpoint of not reducing the strength of the naturally derived fiber. Below, it is more preferably 6.0 or less.
  • the content of the component (E) in the composition is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, still more preferably 2.0, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. It is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5.0% by mass or less, from the viewpoint of not reducing the strength of the naturally derived fiber by the reducing action.
  • the treatment temperature of the composition containing the component (E) is preferably 5 ° C. or higher, more preferably 10 ° C. or higher, still more preferably 20 ° C. or higher, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. Further, from the viewpoint of avoiding the occurrence of new yellowish coloring, the temperature is preferably 100 ° C. or lower, more preferably 60 ° C. or lower, still more preferably 40 ° C. or lower.
  • the treatment time of the composition containing the component (E) is preferably 1 second or longer, more preferably 30 seconds or longer, still more preferably 1 minute or longer, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. Further, from the viewpoint of avoiding the occurrence of new yellowish coloring, it is preferably 60 minutes or less, more preferably 30 minutes or less, still more preferably 15 minutes or less.
  • composition containing the component (G) for the purpose of suppressing or removing the coloring in the naturally derived fiber treated with the fiber treatment agent of the present invention, as in the treatment with the composition containing the component (E). Allows you to process naturally derived fibers.
  • Component (G) Compound with chelating action
  • examples of the component (G) include compounds having a total of two or more hydroxy groups, carboxy groups and phosphoric acid groups, specifically, ethidronic acid, disodium ethylenediamine tetraacetate, and catechol-3,5-disulfone. Disodium acid monohydrate and phytic acid are preferably exemplified.
  • the composition containing the above component (G) is preferably an aqueous solution.
  • the pH of this composition is preferably 2.0 or more, more preferably 3.0 or more, still more preferably 4.0 or more, and preferably 9.0 or less, more preferably 7.0 or less, from the viewpoint of not reducing the strength of the naturally derived fiber. , More preferably 6.0 or less.
  • Ingredient (G) can be used alone or in combination of two or more.
  • the content of the component (G) in the composition containing the component (G) is preferably 0.1% by mass or more, more preferably 0.5% by mass, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. As described above, it is more preferably 2.0% by mass or more, and from the viewpoint of suppressing a decrease in fiber strength, it is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5.0% by mass or less.
  • the treatment temperature of the composition containing the component (G) is preferably 5 ° C. or higher, more preferably 10 ° C. or higher, still more preferably 20 ° C. or higher, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. Further, from the viewpoint of suppressing a decrease in fiber strength, the temperature is preferably 100 ° C. or lower, more preferably 60 ° C. or lower, still more preferably 40 ° C. or lower.
  • the treatment time of the composition containing the component (G) is preferably 1 second or longer, more preferably 30 seconds or longer, still more preferably 1 minute or longer, from the viewpoint of exhibiting the effect of suppressing or removing the coloring of naturally derived fibers. Further, from the viewpoint of suppressing a decrease in fiber strength, it is preferably 72 hours or less, more preferably 48 hours or less, still more preferably 24 hours or less.
  • the fiber coloring caused by the treatment with the fiber treatment agent of the present invention is a brownish oxidative coloring (which can be dealt with by treatment with a sulfur-containing reducing agent of the component (E)) and a yellowish catechin metal complex coloring (component (G)). It is considered that the treatment with a chelating agent can be dealt with), and it is considered that the coloring of the fiber can be better suppressed by carrying out the decolorization treatment corresponding to each.
  • the treatments with both compositions may be performed sequentially (regardless of the treatment order), but the components It is also possible to carry out the treatment at one time using a single composition containing (E) and (G).
  • the content, treatment temperature, and treatment time of each component in the above composition are the same as in the case of using the above-mentioned separate compositions.
  • the upper limit of the composition containing the component (G) is longer than that of the composition containing the component (E), but it depends on a single composition containing both components.
  • the treatment time may be set to the range of the composition containing the component (E) from the viewpoint of avoiding the occurrence of new yellowish coloring.
  • the fibers contain condensates produced from the components (A) and (B), resulting in excellent shape sustainability and tensile elastic modulus, which are naturally derived. It is possible to manufacture a fiber for a headdress product having a high degree of elasticity (tenacity) of the fiber, and it is also possible to manufacture a headdress product using the fiber. Examples of the headdress product in the present invention include hair wigs, wigs, weaving, hair extensions, blade hairs, hair accessories, doll hairs and the like.
  • the content of the component derived from the component (A) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more. It is preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 30% by mass or less, ⁇ 1. > The fiber treatment agent.
  • the component (B) is the following component (B1), (B2) and (B3); (B1) Resorcin derivative represented by the general formula (1)
  • a 1 to A 4 may be the same or different, and may be a hydrogen atom, a hydroxyl group, a halogen atom, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a linear or branched alkyl group having 1 to 6 carbon atoms, or a branched chain alkyl group.
  • An alkenyl group, or a linear or branched alkoxy group or alkenyloxy group having 1 to 6 carbon atoms is shown.
  • B2 Naphthol derivative represented by the general formula (2) or (3)
  • R 1 represents a hydrogen atom or a methyl group.
  • a 5 is a hydrogen atom, a linear or branched alkyl group or alkenyl group having 1 to 12 carbon atoms, an aralkyl group or arylalkenyl group having 7 to 12 carbon atoms which may have a substituent, and 1 to 1 carbon atoms.
  • 6 has a linear or branched alkoxy group or alkenyloxy group, a halogen atom or -CO-R 2 (R 2 has a linear or branched alkyl or alkenyl group having 1 to 12 carbon atoms, or a substituent.
  • An aromatic hydrocarbon group having 6 to 12 carbon atoms which may have an aralkyl group or an arylalkenyl group having 7 to 12 carbon atoms or a substituent may be used.
  • D represents a hydrogen atom, a hydroxyl group, a methyl group, or a linear or branched alkoxy group or alkenyloxy group having 1 to 12 carbon atoms.
  • E represents a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or alkenyl group having 1 to 6 carbon atoms, or a linear or branched alkoxy group or alkenyloxy group having 1 to 6 carbon atoms.
  • G represents a hydroxyl group, an alkyl group or an alkenyl group of a linear or branched chain having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, and n represents an integer of 0 to 2.
  • B3 Flavan-3-ol derivative represented by the general formula (4)
  • R 3 indicates a hydrogen atom or a methyl group.
  • X represents a hydrogen atom, a hydroxyl group or a methoxy group.
  • R 4 represents an aromatic hydrocarbon group which may be substituted with up to 3 hydroxyl groups or methoxy groups and may form a fused ring with 1,3-dioxolane.
  • R 5 has an aromatic hydrocarbon group, or a hydroxyl group or a methoxy group, which may be substituted with up to three hydroxyl groups, methoxy groups, or hydroxyl groups or methoxy groups, or may form a fused ring with 1,3-dioxolane.
  • resorcin 1-naphthol, 2-naphthol, 3-methylnaphthalen-1-ol, naphthalene-1,5-diol, naphthalene-1,8-diol, catechin, One or more selected from Epicatechin, Epigallocatechin, Catechin gallate, Epicatechin gallate, Epigallocatechin gallate, tea extract, More preferably, resorcin, catechin, epicatechin, epigallocatechin, catechin gallate, epicatechin gallate, epigallocatechin gallate, tea extract.
  • the fiber treatment agent according to ⁇ 1> or ⁇ 2> which is one or more selected from the above.
  • the content of the component derived from the component (B) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 1.5% by mass or more, still more preferably 3% by mass or more. It is even more preferably 5% by mass or more, preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably.
  • ⁇ 5> The fiber treatment agent according to any one of ⁇ 1> to ⁇ 4>, wherein the component (B) is the component (B1) or the component (B2).
  • the content of the component derived from the component (A) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 3% by mass or more, still more preferably 5% by mass or more. It is preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 30% by mass or less, ⁇ 5. > The fiber treatment agent.
  • the content of the component derived from the component (B) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2.5% by mass or more, still more preferably 5% by mass or more. It is preferably 60% by mass or less, more preferably 50% by mass or less, still more preferably 40% by mass or less, still more preferably 35% by mass or less, still more preferably 30% by mass or less, ⁇ 5. > Or the fiber treatment agent according to ⁇ 6>.
  • the total content of the component derived from the component (A) and the component derived from the component (B) in the fiber treatment agent is preferably 1% by mass or more, more preferably 5% by mass or more, still more preferably. 10% by mass or more, still more preferably 20% by mass or more, preferably 80% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less, still more preferably 40% by mass or less.
  • the content of the component derived from the component (A) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more. It is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, still more preferably 20% by mass or less, still more preferably 10% by mass or less, ⁇ 9. > The fiber treatment agent.
  • the content of the component derived from the component (B) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, still more preferably 1% by mass or more. It is even more preferably 2% by mass or more, preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, still more preferably 20% by mass or less, still more preferably.
  • the fiber treatment agent according to ⁇ 9> or ⁇ 10> which is 15% by mass or less.
  • the total content of the component derived from the component (A) and the component derived from the component (B) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 2.5. By mass or more, still more preferably 4% by mass or more, even more preferably 5% by mass or more, and preferably 50% by mass or less, more preferably 30% by mass or less, still more preferably 20% by mass or less, further.
  • the fiber treatment agent according to any one of ⁇ 9> to ⁇ 11>, which is more preferably 15% by mass or less.
  • the molar ratio (A) / (B) of the component derived from the component (A) to the component derived from the component (B) is preferably 0.005 or more, more preferably 0.01 or more, still more preferably 0.05 or more, and even more.
  • ⁇ 1> to ⁇ 12> preferably 0.1 or more, still more preferably 0.5 or more, and preferably less than 5, more preferably 4 or less, still more preferably 3 or less, still more preferably 2 or less.
  • the fiber treatment agent according to any one item.
  • the content of the component (C) in the fiber treatment agent is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, still more preferably 40% by mass or more, and more preferably.
  • D Organic compounds having a Hansen solubility parameter SP value of 16 MPa 1/2 or more and 40 MPa 1/2 or less (excluding organic salts and compounds having a molecular weight of 150 or less having an aldehyde group).
  • the component (D) is preferably at least one selected from monohydric alcohols, dihydric alcohols, dihydric alcohol derivatives, trihydric or higher polyhydric alcohols, lactam, imidazolidinone, pyrimidinone, lactones, alkylene carbonates and general-purpose organic solvents. From species, more preferably at least one selected from dihydric alcohols, lactams and imidazolidinones, more preferably from diethylene glycol, triethylene glycol, N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone and DMDM hydantin.
  • the fiber treatment agent according to ⁇ 15> which is at least one selected.
  • the SP value of the Hansen solubility parameter of the component (D) is preferably 35.8 MPa 1/2 or less, more preferably 34.7 MPa 1/2 or less, still more preferably 29.2 MPa 1/2 or less, and preferably 17.8.
  • the fiber treatment agent according to ⁇ 15> or ⁇ 16> which has a MPa of 1/2 or more, more preferably 21.1 MPa 1/2 or more, and even more preferably 22.0 MPa 1/2 or more.
  • the content of the component (D) in the fiber treatment agent is preferably 10% by mass or more, more preferably 15% by mass or more, further preferably 25% by mass or more, and preferably 80% by mass or less, more preferably.
  • the component (E) is preferably one or more selected from sodium sulfite and thiol compounds, more preferably one or more selected from sodium sulfite, sodium pyrosulfite, thioglycerin, and mesna (sodium 2-mercaptoethanesulfonate).
  • the fiber treatment agent according to ⁇ 19> which is more preferably sodium sulfite.
  • the content of the component (E) in the fiber treatment agent is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, further preferably 2.0% by mass or more, and preferably 20% by mass or less, more preferably.
  • the molar ratio (E) / (A) of the component (E) to the component (A) is preferably 0.1 or more, more preferably 0.3 or more, still more preferably 0.5 or more, and preferably 3.0 or less, more preferably.
  • Item 2 The fiber treatment agent according to any one of ⁇ 19> to ⁇ 21>, which is 1.5 or less, more preferably 1.0 or less.
  • the cationic surfactant is preferably a monolong-chain alkyl quaternary ammonium salt having one alkyl group having 8 to 24 carbon atoms and three alkyl groups having 1 to 4 carbon atoms, more preferably the following general formula.
  • R 4 is a saturated or unsaturated linear or branched alkyl group having 8 to 22 carbon atoms, R 8 -CO-NH- (CH 2 ) m- or R 8 -CO-O- (CH). 2 ) m- (R 8 indicates a saturated or unsaturated linear or branched alkyl chain having 7 to 21 carbon atoms, and m indicates an integer of 1 to 4), R 5 , R 6 and R.
  • X- indicates a chloride ion, a bromide ion, a metosulfate ion or an etosulfate ion.
  • the content of the cationic surfactant is preferably 0.05% by mass or more, more preferably 0.10% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, ⁇ 23> or.
  • the fiber treatment agent according to any one of ⁇ 1> to ⁇ 25> which further preferably further contains one or more selected from silicone, more preferably dimethylpolysiloxane and amino-modified silicone.
  • the content of silicone is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably. Is 5% by mass or less, according to ⁇ 26>.
  • the content of the cationic polymer is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, further preferably 0.05% by mass or more, and preferably 20% by mass or less, more preferably 10% by mass or less.
  • turbidity is preferably 500 NTU or less, more preferably 100 NTU or less, still more preferably 20 NTU or less.
  • the pH is preferably 3.0 or more, more preferably 3.5 or more, still more preferably 4.0 or more, and preferably 11.0 or less, more preferably 9.0 or less, still more preferably 7.0 or less, ⁇ 1> to ⁇ 30>.
  • the fiber treatment agent according to any one of the above items.
  • ⁇ 32> It is preferably for naturally derived fibers, more preferably for fibers collected from natural animals and plants, or for fibers artificially produced from keratin, collagen, casein, soybeans, peanuts, corn, silk scraps or silk fibroin, and further. It is a treatment agent for regenerated protein fibers selected from regenerated collagen fibers made from collagen as a raw material and regenerated silk fibers made from silk fibroin, and even more preferably for regenerated collagen fibers, ⁇ 1> to ⁇ 31>.
  • the fiber treatment agent according to any one of the above items.
  • a fiber treatment method including the following step (i). (i) A step of immersing the fiber in the fiber treatment agent according to any one of ⁇ 1> to ⁇ 32> and treating the fiber while maintaining the turbidity of the treatment agent at 1000 NTU or less.
  • the heating time in step (0) is defined as T, which is the heating time for the treatment agent immediately after mixing and preparing the components until the treatment agent exceeds the turbidity of 1000 NTU, it is preferably 0.2 T or more, more preferably.
  • the fiber treatment method according to ⁇ 34>, wherein is 0.3T or more, more preferably 0.4T or more, preferably 0.8T or less, more preferably 0.7T or less, still more preferably 0.6T or less.
  • the amount of the fiber treatment agent in which the fiber is immersed in the step (i) is preferably 2 or more, more preferably 3 or more, still more preferably 3 or more in terms of the bath ratio to the mass of the fiber (mass of the fiber treatment agent / mass of the fiber). Any one of ⁇ 33> to ⁇ 35>, which is 5 or more, more preferably 10 or more, still more preferably 20 or more, still preferably 500 or less, more preferably 250 or less, still more preferably 100 or less.
  • the temperature of the fiber treatment agent in the step (i) is preferably 20 ° C. or higher, more preferably 35 ° C. or higher, further preferably 45 ° C. or higher, and preferably less than 100 ° C., more preferably 80 ° C. or lower, further.
  • the soaking time in step (i) is defined as T, which is the heating time for the treatment agent immediately after mixing and preparing the components until the treatment agent exceeds the turbidity of 1000 NTU, it is preferably 0.3 T or more, more preferably. Is 0.4 T or more, more preferably 0.5 T or more, preferably 0.95 T or less, more preferably 0.90 T or less, still more preferably 0.85 T or less, any one of ⁇ 33> to ⁇ 37>.
  • T is the heating time for the treatment agent immediately after mixing and preparing the components until the treatment agent exceeds the turbidity of 1000 NTU
  • T is preferably 0.3 T or more, more preferably.
  • Is 0.4 T or more more preferably 0.5 T or more, preferably 0.95 T or less, more preferably 0.90 T or less, still more preferably 0.85 T or less, any one of ⁇ 33> to ⁇ 37>.
  • the fiber treatment method according to any one of ⁇ 33> to ⁇ 38>, wherein the following step (ii) is performed after the step (i), and the step (i) and the step (ii) are repeated two or more times. .. (ii)
  • the process of removing fibers from the treatment agent before the turbidity of the treatment agent exceeds 1000 NTU.
  • rinsing of the step (iii) is preferably carried out using a rinsing composition containing the component (D).
  • D Organic compounds having a Hansen solubility parameter SP value of 16 MPa 1/2 or more and 40 MPa 1/2 or less (excluding organic salts and compounds having a molecular weight of 150 or less having an aldehyde group).
  • the rinsing composition contains water in addition to the component (D), and the content of the component (D) in the rinsing composition is preferably 60% by mass or more, more preferably 80% by mass or more, and even more preferably.
  • a step of immersing the fiber in a surface finishing agent containing the following components (F) and (C) is performed, of ⁇ 33> to ⁇ 42>.
  • the fiber treatment method according to any one item.
  • Epoxyaminosilane copolymer which is a reaction product of the following compounds (a) to (d) (a) Polysiloxane having at least two oxylanyl groups or oxetanyl groups (b) Poly having at least two oxylanyl groups or oxetanyl groups Ether (c) Aminopropyltrialkoxysilane (d) A compound selected from the group consisting of the following primary and secondary amines-Primary amines: methylamine, ethylamine, propyleneamine, ethanolamine, isopropylamine, Butylamine, isobutylamine, hexylamine, dodecylamine, oleylamine, aniline, aminopropyltrimethylsilane, aminopropyltriethylsilane, aminomorpholin, aminopropyldiethylamine, benzylamine, naphthylamine, 3-amino-9-ethylcarbazole, 1-
  • the content of the component (F) in the surface finishing agent is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.10% by mass or more, still more preferably 0.20% by mass or more, and more preferably.
  • the fiber treatment method according to any one of ⁇ 33> to ⁇ 45>, wherein the fiber is further heated while being stretched by applying tension to the fiber.
  • the fiber stretch ratio during heating is preferably 0.1% or more, more preferably 0.2% or more, further preferably 0.5% or more, and preferably 10% or less, more preferably 5% or less, still more preferably 2%.
  • the fiber treatment method according to ⁇ 46> which is described below.
  • the heating temperature is preferably 120 ° C. or higher, more preferably 140 ° C. or higher, still more preferably 160 ° C. or higher, and preferably 240 ° C. or lower, more preferably 220 ° C. or lower, still more preferably 200 ° C. or lower.
  • the heating time is preferably 1 second or longer, more preferably 3 seconds or longer, still more preferably 5 seconds or longer, and preferably 60 seconds or shorter, more preferably 30 seconds or shorter, still more preferably 20 seconds or shorter.
  • the fiber treatment method according to any one of ⁇ 46> to ⁇ 48>.
  • ⁇ 50> The fiber treatment method according to any one of ⁇ 46> to ⁇ 49>, wherein the fiber is preferably allowed to stand in water while being stretched by applying tension to the fiber after heating.
  • the stretch ratio is preferably 0.1% or more, more preferably 0.2% or more, still more preferably 0.5% or more, and preferably 10% or less, more preferably 5% or less, still more preferably 2% or less.
  • the water temperature is preferably 5 ° C. or higher, more preferably 20 ° C. or higher, still more preferably 30 ° C. or higher, and preferably 80 ° C. or lower, more preferably 60 ° C. or lower, still more preferably 50 ° C. or lower.
  • the standing time in water is preferably 1 minute or more, more preferably 5 minutes or more, further preferably 30 minutes or more, and preferably 48 hours or less, more preferably 24 hours or less, still more preferably 3 hours.
  • the fiber to be treated is preferably naturally derived fiber, more preferably fiber collected from natural animals and plants, or artificially produced from keratin, collagen, casein, soybean, peanut, corn, silk dust or silk fibroin. Any of ⁇ 33> to ⁇ 56>, which are regenerated protein fibers selected from fibers, more preferably regenerated collagen fibers made from collagen and regenerated silk fibers made from silk fibroin, and even more preferably regenerated collagen fibers.
  • a method for producing a fiber for a headdress product which comprises a step of treating the fiber by the fiber treatment method according to any one of ⁇ 33> to ⁇ 57>.
  • a method for manufacturing a headdress product which comprises a step of treating the fiber by the fiber treatment method according to any one of ⁇ 33> to ⁇ 57>.
  • the electron donating group of the above may form a benzene ring in which a hydroxyl group may be substituted together with an adjacent carbon atom.
  • a manufactured headdress product whose constituent is a fiber containing a condensate produced from the components (A) and (B).
  • the electron donating group of the above may form a benzene ring in which a hydroxyl group may be substituted together with an adjacent carbon atom.
  • a fiber treatment agent containing the following components (A) to (C).
  • the fiber treatment agent according to ⁇ 62> which further contains the following component (D).
  • D One or more selected from diethylene glycol, triethylene glycol, N-methylpyrrolidone, and 1,3-dimethyl-2-imidazolidinone 15-45% by mass.
  • a fiber treatment agent containing the following components (A) to (C) and (E).
  • ⁇ 65> It is preferably for naturally derived fibers, more preferably for fibers collected from natural animals and plants, or for fibers artificially produced from keratin, collagen, casein, soybeans, peanuts, corn, silk scraps or silk fibroin, and further.
  • ⁇ 62> to ⁇ 64> which are treatment agents for regenerated protein fibers preferably selected from regenerated collagen fibers made from collagen and regenerated silk fibers made from silk fibroin, and even more preferably for regenerated collagen fibers.
  • the fiber treatment agent according to any one item.
  • a fiber treatment agent kit containing the fiber treatment agent according to any one of ⁇ 62> to ⁇ 64> and a surface finish agent containing the components (F) and (C).
  • ⁇ Treatment method (For those with two or more treatments, the following cycle was repeated a predetermined number of times.)> 1.
  • 1. Immerse 0.5 g of regenerated collagen fiber (*) and a 22 cm long hair bundle in a container containing 40 g of fiber treatment agent, seal the mouth of the container, and use a water bath at 50 ° C for each container (manufacturer: Toyo Seisakusho Co., Ltd.). / Model number: TBS221FA) and heated for a predetermined time. The heating time was unified to a time corresponding to about 0.8 T (T is as described above).
  • Regenerated collagen fiber manufactured by Kaneka Corporation was purchased in the form of a commercially available extension product, and the fiber was cut from the fiber and divided into hair bundles for evaluation.
  • the extension product has a notation of using 100% Ultima as the fiber type, and the one with a color count of 3 brown and a straight shape was used.
  • the container containing the hair bundle was removed from the water bath and returned to room temperature.
  • a warm air dryer Nobby White NB3000 manufactured by Tescom
  • the average breaking elongation (B%) of the hair bundle after treatment is based on the average breaking elongation (A%) at the time of fiber tension in the as-is (untreated) state cut from the commercial product.
  • the degree of increase (C%) from the untreated state is described in the table as "the rate of increase in the average elongation at break during fiber tension [%]".
  • C (%) B (%) -A (%)
  • the fiber piece was set in the "MTT690 automatic fiber tensile tester" manufactured by DIA-STRON limited, and automatic measurement was started, and the breaking load when the fiber was stretched in a wet state was obtained.
  • the average breaking load (W 0 (gf)) of the hair bundle after treatment (W 1 (gf)) is based on the average breaking load (W 0 (gf)) when the fiber is pulled as it is cut from the commercial product (untreated).
  • the extent to which ()) increased from the untreated state (Y (gf)) is described in the table as "increase in average breaking load during fiber tension [gf]".
  • Y (gf) W 1 (gf) -W 0 (gf)
  • ⁇ Thermal shape memory ability> The evaluation of the thermal shape memory ability was performed using the hair bundle immediately after being treated by the above ⁇ treatment method>. When the value of the result of "I: shape addition (curl)" was 5% or less, it was considered that there was no effect, and the subsequent processing and evaluation were not performed.
  • the hair bundle wrapped around the rod was immersed in a water bath (manufacturer: Toyo Engineering Works, Ltd./model number: TBS221FA) at 60 ° C. and heated for 1 minute. 1 g of the treatment agent was applied to the rod, the entire rod was covered with a wrap, sealed, and heated in an oven set at 90 ° C. for 1 hour. 3. 3. The hair bundle was removed from the water bath, immersed in water at 25 ° C. for 1 minute, and returned to room temperature. 4. After removing the hair bundle from the rod and passing the comb three times, I hung it and took a picture from the side.
  • a water bath manufactured by Toyo Engineering Works, Ltd./model number: TBS221FA
  • ⁇ II Reshape (straight) 1.
  • the hair bundle evaluated in I was entangled through a comb, and then slid 6 times at a speed of 5 cm / sec with a flat iron (manufactured by Miki Denki Sangyo Co., Ltd./model number: AHI-938) having an actual measurement temperature of 140 ° C. 2.
  • 3. 3 The hair was dried while being vibrated so that the natural shape of the hair appeared (without using a dryer), passed through a comb, and then hung and visually observed from the side.
  • the untreated hair bundle length was defined as L 0 (22 cm), the treated hair bundle length was L, and the straightening rate (S) (%) obtained according to the following equation was defined as the degree of achievement of straightening.
  • S 100%, the hair bundle is completely straightened.
  • S [1- (L 0 -L) / L 0 ] x 100
  • ⁇ III Reshape (curl) 1.
  • the hair bundle wrapped around the rod was immersed in a water bath (manufacturer: Toyo Engineering Works, Ltd./model number: TBS221FA) at 60 ° C. and heated for 1 minute.
  • the hair bundle was removed from the water bath, immersed in water at 25 ° C. for 1 minute, and returned to room temperature. 4. After removing the hair bundle from the rod and passing the comb three times, I hung it and took a picture from the side.
  • ⁇ Coloring> As the regenerated collagen fiber manufactured by Kaneka Corporation, the treatment was carried out in the same manner as in the above-mentioned ⁇ treatment method> except that a white one having a color count of 30 was used. 1. 1. For each of the front and back of the hair bundle, the color was measured near the root, near the middle, and near the tip of the hair with a colorimeter (Konica Minolta colorimeter CR-400), and the average value of a total of 6 points was used as the color measurement value ( L, a, b). 2. 2. The degree of coloring was evaluated by ⁇ E * ab based on the hair bundle of untreated color count 30 white. In addition, the color was measured on the same day that the treatment was performed.
  • a colorimeter Konica Minolta colorimeter CR-400
  • ⁇ E * ab is when the measured value of the untreated hair bundle with a color count of 30 white is (L 0 , a 0 , b 0 ) and the measured value of the treated hair bundle is (L 1 , a 1 , b 1 ). , [(L 1 ⁇ L 0 ) 2 + (a 1 ⁇ a 0 ) 2 + (b 1 ⁇ b 0 ) 2 ] 1/2 .
  • Example 7 Surface finishing treatment
  • the regenerated collagen fibers treated in Example 2 were treated with the surface finishing agents shown in Table 2 and various evaluations were performed.
  • the hair bundle was immersed in a container containing 40 g of a surface finishing agent and allowed to stand at room temperature for 30 minutes. 2.
  • the hair bundle was taken out of the container and dehydrated for 5 minutes with a household centrifugal dehydrator (ultra-high speed dehydrator Powerful Spin Dry APD-6.0 / manufactured by Aluminus) (spin coating method).
  • 3. The hair bundle was removed from the dehydrator and heated in an oven set at 60 ° C. (forced convection dryer with stainless steel window; SOFW-450 manufactured by AS ONE Corporation) for 3 hours. 4.
  • the tresses were removed from the oven and returned to room temperature. 5.
  • the hair bundle was rinsed with running water at 30 ° C. for 30 seconds, drained lightly with a towel, and then dried while combing with a warm air dryer (Nobby White NB3000 manufactured by Tescom).
  • Examples 8 to 13 (heating after treatment, immersion in water)
  • a flat iron manufactured by Miki Denki Sangyo Co., Ltd./model number: AHI-938 with an actual measurement temperature of 160 ° C. was used 30 times at a speed of 5 cm / sec. After sliding, various evaluations were performed (Examples 8, 10, and 12). Further, in order to apply tension to the hair bundle after the ironing treatment to the extent that each fiber constituting the hair bundle is stretched in the range of 0.1 to 0.5% on average, both ends of the hair bundle are sandwiched between hairpins and pulled.
  • Examples 14 to 22 (heating after treatment, immersion in water) The regenerated collagen fibers were treated in the same manner as described above using the compositions of the formulations shown in Table 4. Then, a flat iron (manufactured by Miki Denki Sangyo Co., Ltd./model number: AHI-938) at the measured temperature shown in the table was slid at a speed of 5 cm / sec the number of times shown in the table. Further, in order to apply tension to the hair bundle after the ironing treatment to the extent that each fiber constituting the hair bundle is stretched in the range of 0.1 to 0.5% on average, both ends of the hair bundle are sandwiched between hairpins and pulled. In this state, the hairpin was fixed to the wall of the water bath with tape and allowed to stand in water at 40 ° C. for 1 hour, then dried with a dryer, and various evaluations were performed. The results are shown in Table 4.
  • 1. Immerse a hair bundle of 0.5 g of regenerated collagen fiber (*) with a length of 22 cm in a container containing 40 g of the first agent, seal the mouth of the container, and use a water bath at 50 ° C for each container (manufacturer: Toyo Seisakusho Co., Ltd.). / Model number: TBS221FA) and heated for 4 hours.
  • Regenerated collagen fiber manufactured by Kaneka Corporation was purchased in the form of a commercially available extension product, and the fiber was cut from the fiber and divided into hair bundles for evaluation.
  • the extension product has a notation of using 100% Ultima as the fiber type, and the one with a color count of 3 brown and a straight shape was used.
  • the container containing the hair bundle was removed from the water bath and returned to room temperature.
  • 3. Remove the hair bundle from the container, rinse it with running water at 30 ° C for 30 seconds, whisk it with shampoo for evaluation for 60 seconds, rinse it with running water at 30 ° C for 30 seconds, drain it lightly with a towel, and then drain the hair bundle.
  • a warm air dryer Nobby White NB3000 manufactured by Tescom. 4.
  • the hair bundle was immersed in a container containing 40 g of the second agent, the mouth of the container was closed, and the entire container was immersed in a water bath (manufacturer: Toyo Engineering Works, Ltd./model number: TBS221FA) at 50 ° C. and heated for 4 hours. 5.
  • the container containing the hair bundle was removed from the water bath and returned to room temperature. 6.
  • Remove the hair bundle from the container soak it in 50 g of triethylene glycol for 30 seconds, rinse it with tap water at 30 ° C for 30 seconds, whisk it with an evaluation shampoo for 60 seconds, and run it with tap water at 30 ° C for 30 seconds. After rinsing and lightly draining with a towel, the hair bundles were dried while combing with a warm air dryer (Nobby White NB3000 manufactured by Tescom). At this point, the tufts remained straight.
  • a warm air dryer Nobby White NB3000 manufactured by Tescom

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
PCT/JP2021/047437 2020-12-25 2021-12-21 繊維処理剤 Ceased WO2022138680A1 (ja)

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