Method for treating fiber for hair or head ornament product

Abstract

To provide a method for treating a fiber for hair or a head ornamental product using a fiber treatment agent composition for hair or a head ornamental product, in which the treatment agent composition has a good texture when in use, a sufficient amount of foam is obtained when the fiber for hair or a head ornamental product is washed and treated, spreadability when applied to the fiber for hair or a head ornamental product is good when the fiber for hair or a head ornamental product is subjected to conditioning treatment and an excellent treatment effect is obtained.SOLUTION: There is provided a method for treating a fiber for hair or a head ornamental product, which comprises, in order: a step (I) of preparing a foam treatment agent composition by mixing a powder or a granular composition (A) comprising (A1) one or more selected from the group consisting of a hydrogen carbonate and a carbonate, (A2) an organic acid and (A3) a thickener and a fiber treatment agent composition for hair or a head ornamental product (B) at the time of use, followed by foaming; and a step (II) of applying the foam treatment agent composition to the fiber for hair or a head ornamental product.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a method for treating hair or fibers for hair accessories products.

Background Art

[0002] In addition to hair treatment effects such as hair detergency and hair conditioning effects, hair treatment agents are also desired to have good handleability, coatability on hair, and usability.

[0003] As a hair treatment agent capable of uniformly treating hair, a foamy hair treatment agent that does not use compressed gas or gas for radiation is known. For example, in Patent Document 1, in a foamy hair treatment agent produced by mixing two components before use, (1) the first component is a powdery or granular solid, a water-soluble acid that is physiologically non-problematic or a water-soluble acid salt that is physiologically non-problematic and a carbonate or bicarbonate that is physiologically non-problematic, and (2) the second component is a hair treatment agent containing water and contains 0.1 to 50% by weight of a surfactant. A foamy hair treatment agent is disclosed. According to the disclosed technology of Patent Document 1, by adding a powder mixture composed of a water-soluble acid that is physiologically non-problematic or a water-soluble acid salt that is physiologically non-problematic and a carbonate or bicarbonate that is physiologically non-problematic to a hair treatment agent containing water immediately before use, a stable, voluminous, and foamy hair treatment agent containing fine bubbles can be obtained without using compressed gas or gas for radiation. Although it is possible to obtain a foamy hair treatment agent with an aerosol-type hair treatment agent, an aerosol container and a propellant such as compressed gas are required. According to the disclosed technology of Patent Document 1, there is an advantage that a foamy hair treatment agent can be obtained by a simpler method.

[0004] In addition, Patent Document 2 discloses a hair growth composition comprising a liquid composition containing an acidic substance, a humectant, and water, and a powdery or gel-like composition containing a carbonate and a thickener, which is configured to be applied to the skin by mixing the liquid composition and the powdery or gel-like composition at the time of use, and which has a high blood circulation promoting effect and thereby enhances the hair growth effect.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The foamy hair treatment agent disclosed in Patent Document 1 and the hair growth composition disclosed in Patent Document 2 are used by mixing two agents at the time of use and carbonating to prepare a foamy composition. For such a two-agent type treatment agent composition, from the viewpoints of handling property during treatment and improvement of treatment effect, it is desired that the texture of the mixture obtained by mixing the two agents is good during use. Here, "good texture during use" means that the obtained mixture is foamy and does not drip easily during treatment. Furthermore, in a hair treatment agent, it is important to obtain a sufficient amount of foam when washing the hair, and to have good elongation during hair application when conditioning the hair. However, in the prior art, no hair treatment agent and hair treatment method that satisfy all the above required characteristics have been proposed. In addition, since the hair growth composition disclosed in Patent Document 2 is a composition applied to the scalp, it does not mention hair treatment.

[0007] The present invention provides a method for treating hair or fibers for hair accessories using a fiber treatment agent composition for hair or hair accessories, wherein the texture during use of the treatment agent composition is good, sufficient foam volume can be obtained when washing the hair or fibers for hair accessories, and when conditioning the hair or fibers for hair accessories, the elongation during application to the hair or fibers for hair accessories is good, and an excellent treatment effect can be obtained. [Means for Solving the Problems]

[0008] The present inventor has found that the above problems can be solved by a method for treating hair or fibers for hair accessories having a predetermined process. That is, the present invention relates to the following. [1] A method for treating hair or fibers for hair accessories, comprising the following steps (I) and (II) in sequence. Step (I): A step of preparing a foamed treatment agent composition by foaming by mixing a powder or granular composition (A) containing the following components (A1) to (A3) and a fiber treatment agent composition (B) for hair or hair accessories during use (A1) At least one selected from the group consisting of hydrogen carbonate and carbonate (A2) Organic acid (A3) Thickener Step (II): A step of applying the foamed treatment agent composition to hair or fibers for hair accessories [Effects of the Invention]

[0009] According to the present invention, in a method for treating hair or fibers for hair accessories using a fiber treatment agent composition for hair or hair accessories, the texture during use of the treatment agent composition is good, sufficient foam volume can be obtained when washing the hair or fibers for hair accessories, and when conditioning the hair or fibers for hair accessories, the elongation during application to the hair or fibers for hair accessories is good, and a treatment method with excellent treatment effect can be provided. [Embodiments for Carrying Out the Invention]

[0010] [Definitions] "Polymer", as used herein, means a compound corresponding to the repetition of one or more units (these units are derived from compounds known as monomers). This or these units are repeated at least twice, preferably at least three times. "Hair", as used herein, mainly means head hair and also includes hair used in headdress products. "Headdress product", as used herein, means, for example, hair wigs, wigs, weavings, hair extensions, blade hair, hair accessories, doll hair, etc. "Fiber for headdress products", as used herein, means a fiber used in the above-mentioned headdress products. As used herein, the "powder or granular composition" means a composition composed of an aggregate of particulate components that are solid at room temperature (excluding compression molded bodies obtained by compression molding particulate components). The size (average particle diameter) of the above particulate shape is preferably 1 μm or more and 1000 μm or less from the viewpoint of ease of dissolution in the hair or fiber treatment agent composition (B) for headdress products. Note that the above particulate components may be granulated. As used herein, "good texture during use of the treatment agent composition" means that the appearance of the treatment agent composition prepared in step (I) is foamy and is not likely to drip during the treatment of hair or fibers for headdress products in step (II). The texture during use of the treatment agent composition can specifically be evaluated by the method described in the examples. As used herein, "room temperature" and "normal temperature" mean 25°C unless otherwise specified.

[0011] [Method for treating hair or fibers for headdress products] The method for treating hair or fibers for headdress products of the present invention (hereinafter, also simply referred to as "(the method of the present invention) treatment method") has the following steps (I) and (II) in sequence. Step (I): A step of preparing a foamy treatment agent composition by foaming by mixing a powder or granular composition (A) containing the following components (A1) to (A3) and a hair or fiber treatment agent composition (B) for headdress products at the time of use (A1) At least one selected from the group consisting of hydrogen carbonates and carbonates (A2) Organic acid (A3) Thickener Step (II): A step of applying the foaming treatment agent composition to hair or fibers for a hair accessory product Due to having the above configuration, the treatment method of the present invention has a good texture when using the treatment agent composition prepared in step (I), and when washing hair or fibers for a hair accessory product, a sufficient amount of foam can be obtained. When conditioning hair or fibers for a hair accessory product, the elongation during application to the hair or fibers for a hair accessory product is good, and an excellent treatment effect can be obtained.

[0012] The reason why the present invention exhibits the above effects is considered as follows. In step (I), a powder or granular composition (A) containing the components (A1) to (A3) (hereinafter, also simply referred to as "composition (A)") and a hair or fiber treatment agent composition for a hair accessory product (B) (hereinafter, also simply referred to as "(treatment agent) composition (B)") are mixed during use to cause foaming, thereby preparing a foaming treatment agent composition. The composition (A) used in step (I) contains (A1) at least one selected from the group consisting of hydrogen carbonates and carbonates, and (A2) an organic acid. When the composition (A) and the composition (B) are mixed, the composition (A) dissolves in the composition (B), and the component (A1) and the component (A2) react in the composition (B) to generate carbon dioxide gas, and a foaming treatment agent composition is obtained. Furthermore, since the composition (A) contains (A3) a thickener, it is considered that the foam retention of the treatment agent composition after foaming becomes good, and the texture when using the foaming treatment agent composition becomes good. In the present invention, since the composition (A) used in step (I) is in powder or granular form, its solubility in the composition (B) is high, carbon dioxide gas can be efficiently generated, and the composition (B) can be efficiently thickened. Therefore, it is considered that the texture when using the obtained foaming treatment agent composition becomes good, and the amount of foam and the elongation during application to hair or fibers for a hair accessory product also become good. The composition (B) used in step (I) can be used alone as a treatment composition for hair or fibers for headdress products. However, when it is mixed with the composition (A) and used, it becomes a foamy treatment composition, and it is considered that the above effects can be obtained when treating hair or fibers for headdress products in step (II).

[0013] <Hair or fibers for headdress products> The application target of the treatment method of the present invention is hair or fibers for headdress products. Among these, hair is preferred. As the fibers for headdress products to which the treatment method of the present invention is applicable, either natural-derived fibers or synthetic fibers may be used, but natural-derived fibers are preferred. Natural-derived fibers refer to fibers collected from natural animals and plants, or fibers artificially manufactured using polymers and oligomers such as proteins and polysaccharides derived from collagen, casein, soybeans, peanuts, corn, silk waste, silk proteins (e.g., silk fibroin), etc. Among these, animal hair, human hair, or fibers artificially manufactured using proteins and polysaccharides such as polymers and oligomers derived from keratin, collagen, casein, soybeans, peanuts, corn, silk waste, silk proteins (e.g., silk fibroin), etc. are preferred, and regenerated protein fibers made from proteins such as keratin, collagen, casein, soybean protein, peanut protein, corn protein, silk protein (e.g., silk fibroin) are more preferred, and regenerated protein fibers such as regenerated collagen fibers made from collagen and regenerated silk fibers made from silk fibroin are more preferred, and regenerated collagen fibers are even more preferred. Regenerated collagen fibers can be manufactured by known techniques. The composition of the regenerated collagen fibers does not have to be 100% collagen, and natural polymers, synthetic polymers, additives, etc. for quality improvement may be included. Furthermore, the regenerated collagen fibers may be post-processed or post-treated. As the form of the regenerated collagen fibers, filaments are preferred. Filaments are generally taken out from those wound on bobbins or packed in boxes. Also, the filaments coming out of the drying process in the manufacturing process of the regenerated collagen fibers can be directly used.

[0014] Examples of the synthetic fiber include fibers containing a synthetic resin as a main component. From the viewpoints of ease of manufacturing the synthetic fiber and obtaining a texture similar to that of hair, the synthetic resin is preferably a thermoplastic resin, more preferably at least one selected from the group consisting of a polyester resin, a polyamide resin, a polyimide resin, a polyamideimide resin, a vinyl chloride resin, a polycarbonate resin, a polyphenylene sulfide resin, and a modacrylic resin (a copolymer of acrylonitrile and vinyl chloride). Here, the "main component" means a component having a content in the synthetic fiber of preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more, and 100% by mass or less. In addition to the above synthetic resin, the synthetic fiber can further contain various substances such as a flame retardant, a flame retardant aid, a light or heat stabilizer, a fluorescent agent, an antioxidant, an antistatic agent, and an ultraviolet absorber, as long as the effects of the present invention are not inhibited.

[0015] <Step (I)> In Step (I), a powdery or granular composition (A) containing the following components (A1) to (A3) and a fiber treatment agent composition (B) for hair or a hair accessory product are mixed at the time of use to cause foaming, thereby preparing a foamed treatment agent composition. (A1) At least one selected from the group consisting of hydrogen carbonates and carbonates (A2) Organic acid (A3) Thickener

[0016] (Powdery or granular composition (A)) The composition (A) is a powdery or granular composition containing the components (A1) to (A3). The definition of "powdery or granular" is as described above. From the viewpoint of making the composition (A) powdery or granular, the components (A1) to (A3) are preferably all powdery or granular, and more preferably all powdery.

[0017] [Component (A1): At least one selected from the group consisting of hydrogen carbonates and carbonates] Component (A1) acts as a carbon dioxide foaming component by reacting with component (A2). As the hydrogen carbonate used as component (A1), preferably an alkali metal hydrogen carbonate is mentioned, and more preferably one or more selected from the group consisting of sodium hydrogen carbonate and potassium hydrogen carbonate are mentioned. As the carbonate used as component (A1), preferably one or more selected from the group consisting of dialkali metal carbonates and ammonium carbonate are mentioned. Among the above, from the viewpoints of improving the texture during the use in step (II), improving the amount of foam, and improving the ease of spreading during coating of the foaming treatment agent composition, component (A1) preferably contains one or more selected from the group consisting of sodium hydrogen carbonate, sodium carbonate, and ammonium carbonate, more preferably contains one or more selected from the group consisting of sodium hydrogen carbonate and sodium carbonate, and still more preferably contains sodium hydrogen carbonate.

[0018] The total content of sodium hydrogen carbonate and sodium carbonate in component (A1) is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, and 100% by mass or less, from the viewpoints of improving the texture during the use in step (II), improving the amount of foam, and improving the ease of spreading during coating of the foaming treatment agent composition.

[0019] 〔Component (A2): Organic acid〕 Component (A2) acts as a carbon dioxide foaming component by reacting with component (A1). The organic acid used as component (A2) is preferably an organic acid that is solid at normal temperature from the viewpoint of preparing the powdery or granular composition (A). Examples of the organic acid include carboxylic acid compounds, organic sulfonic acid compounds, and organic phosphoric acid compounds, and preferably carboxylic acid compounds from the viewpoint of improving the carbon dioxide foaming property.

[0020] The carboxylic acid compound may be a compound having at least one carboxy group. However, from the viewpoints of improving the texture during use in step (II) of the foaming treatment agent composition, improving the amount of foam, and improving the ease of elongation during coating, component (A2) is more preferably a polyvalent carboxylic acid having two or more carboxy groups. However, from the viewpoint of solubility in composition (B), component (A2) is preferably a low molecular weight compound. The molecular weight of the organic acid that is component (A2) is preferably 1,000 or less, more preferably 800 or less, still more preferably 600 or less, even more preferably 500 or less, even more preferably 400 or less, and even more preferably 300 or less. Also, from the viewpoint of being a solid organic acid at normal temperature, it is preferably 100 or more.

[0021] Examples of the carboxylic acid compound used as component (A2) include aliphatic carboxylic acids, aromatic carboxylic acids, and heterocyclic carboxylic acids. Examples of the aliphatic carboxylic acid preferably include aliphatic polyvalent carboxylic acids having no hydroxy group such as oxalic acid, succinic acid, fumaric acid, glutaric acid, adipic acid, and maleic acid; aliphatic hydroxycarboxylic acids such as citric acid, tartaric acid, and malic acid; and the like. Examples of the aromatic carboxylic acid include phthalic acid, benzoic acid, and salicylic acid. Examples of the heterocyclic carboxylic acid include pyrrolidonecarboxylic acid.

[0022] One kind or two or more kinds of component (A2) can be used. Among these, from the viewpoints of solubility in the composition (B), texture improvement during use in step (II) of the foaming treatment agent composition, foam amount improvement, and ease of spreading during coating, the component (A2) preferably contains an aliphatic carboxylic acid, more preferably contains one or more selected from the group consisting of aliphatic polycarboxylic acids having no hydroxy group and aliphatic hydroxycarboxylic acids, still more preferably contains one or more selected from the group consisting of aliphatic polycarboxylic acids having no hydroxy group and aliphatic polyhydroxycarboxylic acids, even more preferably contains one or more selected from the group consisting of succinic acid, fumaric acid, citric acid, tartaric acid, and malic acid, even more preferably contains one or more selected from the group consisting of succinic acid, citric acid, and malic acid, and even more preferably contains citric acid.

[0023] [Component (A3): Thickener] The thickener used as the component (A3) is a water-soluble polymer having a thickening effect on the composition (B), and usually includes components used as thickeners in cosmetic compositions. Examples of the thickener include cationic polymers, anionic polymers, nonionic polymers, and amphoteric polymers. From the viewpoints of texture improvement during use in step (II) of the foaming treatment agent composition, foam amount improvement, and ease of spreading during coating, it preferably contains one or more selected from the group consisting of anionic polymers and nonionic polymers.

[0024] The anionic polymer used as the component (A3) is a polymer having an anionic group such as a carboxy group, a sulfonic acid group, or a phosphoric acid group and being negatively charged as a whole. Note that at least a part of the anionic groups in the anionic polymer may be in the form of a salt. Examples of the salt include alkali metal salts such as sodium salts.

[0025] Specific examples of the anionic polymer include anionic polysaccharides such as carboxymethyl cellulose, carrageenan, xanthan gum, agar, ghatti gum, karaya gum, pectin, and hyaluronic acid; carboxyvinyl polymer, polyacrylic acid, acrylic acid / alkyl methacrylate copolymer, (sodium acrylate / sodium acryloyldimethyltaurine) copolymer, polyacrylamide, (ammonium acryloyldimethyltaurine / vinylpyrrolidone) copolymer, (acrylates / alkyl acrylate (C 10 -C 30 )) cross-polymer, (ammonium acryloyldimethyltaurine / beheneth-25 methacrylate) cross-polymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurine) copolymer, (acrylamide / ammonium acrylate) copolymer, (sodium acrylate / sodium acryloyldimethyltaurine / dimethylacrylamide) cross-polymer, polyacrylate-13, polyacrylate cross-polymer-6 and other anionic acrylic polymers; and the like. One or more of these can be used. Among the above, from the viewpoints of improving the texture during use in step (II) of the foaming treatment agent composition, improving the amount of foam, and improving the ease of spreading during coating, the anionic polymer used as component (A3) preferably contains one or more selected from the group consisting of carboxymethyl cellulose, carrageenan, xanthan gum, carboxyvinyl polymer, and polyacrylic acid, more preferably contains one or more selected from the group consisting of carboxymethyl cellulose and carboxyvinyl polymer, and still more preferably contains carboxymethyl cellulose.

[0026] Examples of the nonionic polymer used as component (A3) include nonionic polysaccharides such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxybutyl methyl cellulose, hydroxypropyl guar gum, locust bean gum, amylose, hydroxyethyl amylose, propylene glycol alginate, starch or its derivatives; polyethylene oxide; polyvinyl alcohol; polyvinyl pyrrolidone; etc. One or more of these can be used. Examples of starch include corn starch and the like. Among the above, from the viewpoints of improving the texture during use in step (II), improving the foam amount, and improving the ease of spreading during coating of the foamed treatment agent composition, the nonionic polymer used as component (A3) preferably contains nonionic polysaccharides, more preferably contains one or more selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxybutyl methyl cellulose, and starch or its derivatives, still more preferably contains one or more selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and corn starch, and even more preferably contains hydroxyethyl cellulose.

[0027] Component (A3) can be used in combination of one or more. Among the above, from the viewpoints of improving the texture during use in step (II), improving the foam amount, and improving the ease of spreading during coating of the foamed treatment agent composition, component (A3) preferably contains one or more selected from the group consisting of carboxymethyl cellulose, carboxyvinyl polymer, and nonionic polysaccharides, more preferably contains one or more selected from the group consisting of carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and corn starch, still more preferably contains one or more selected from the group consisting of carboxymethyl cellulose and hydroxyethyl cellulose, and even more preferably contains carboxymethyl cellulose.

[0028] Content of components in composition (A) The content of component (A1) in composition (A) is preferably 10% by mass or more, more preferably 15% by mass or more, still more preferably 20% by mass or more, even more preferably 25% by mass or more, even more preferably 30% by mass or more, even more preferably 35% by mass or more, even more preferably 40% by mass or more, even more preferably 45% by mass or more, from the viewpoints of improving the texture during use in step (II) of the foaming treatment agent composition, improving the foam amount, and improving the ease of spreading during coating. Also, it is preferably 70% by mass or less, more preferably 65% by mass or less, still more preferably 60% by mass or less, even more preferably 55% by mass or less.

[0029] The content of component (A2) in composition (A) is preferably 15% by mass or more, more preferably 20% by mass or more, still more preferably 25% by mass or more, even more preferably 30% by mass or more, even more preferably 35% by mass or more, from the viewpoints of improving the texture during use in step (II) of the foaming treatment agent composition, improving the foam amount, and improving the ease of spreading during coating. Also, it is preferably 75% by mass or less, more preferably 70% by mass or less, still more preferably 65% by mass or less, even more preferably 60% by mass or less, even more preferably 55% by mass or less, even more preferably 50% by mass or less, even more preferably 45% by mass or less.

[0030] The content of component (A3) in composition (A) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, even more preferably 1% by mass or more, even more preferably 2% by mass or more, even more preferably 3% by mass or more, even more preferably 5% by mass or more, even more preferably 7.5% by mass or more, from the viewpoints of improving the texture during the use in step (II) of the foaming treatment agent composition, improving the amount of foam, and improving the ease of elongation during coating. Also, it is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, even more preferably 20% by mass or less, even more preferably 15% by mass or less.

[0031] The total content of component (A1) and component (A2) in composition (A) is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 65% by mass or more, even more preferably 70% by mass or more, even more preferably 75% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more, from the viewpoints of improving the texture during the use in step (II) of the foaming treatment agent composition, improving the amount of foam, and improving the ease of elongation during coating. Also, it is preferably 99% by mass or less, more preferably 98% by mass or less, still more preferably 97% by mass or less, even more preferably 95% by mass or less, even more preferably 92.5% by mass or less.

[0032] Also, the total content of components (A1) to (A3) in composition (A) is preferably 55% by mass or more, more preferably 60% by mass or more, still more preferably 65% by mass or more, even more preferably 70% by mass or more, even more preferably 75% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, and 100% by mass or less, from the viewpoints of improving the texture during the use in step (II) of the foaming treatment agent composition, improving the amount of foam, and improving the ease of elongation during coating.

[0033] The mass ratio [(A2) / (A1)] of component (A2) to component (A1) in composition (A) is preferably 0.2 or more, more preferably 0.3 or more, still more preferably 0.5 or more, even more preferably 0.6 or more, and even more preferably 0.75 or more, from the viewpoints of improving the texture during use in step (II), improving the amount of foam, and improving the ease of elongation during coating of the foaming treatment agent composition. Also, it is preferably 5 or less, more preferably 4 or less, still more preferably 3 or less, even more preferably 2 or less, even more preferably 1.5 or less, and even more preferably 1.2 or less.

[0034] The mass ratio [(A3) / (A1)] of component (A3) to component (A1) in composition (A) is preferably 0.01 or more, more preferably 0.03 or more, still more preferably 0.05 or more, even more preferably 0.08 or more, and even more preferably 0.1 or more, from the viewpoints of improving the texture during use in step (II), improving the amount of foam, and improving the ease of elongation during coating of the foaming treatment agent composition. Also, it is preferably 10 or less, more preferably 5 or less, still more preferably 2 or less, even more preferably 1 or less, even more preferably 0.5 or less, and even more preferably 0.3 or less.

[0035] The mass ratio [(A3) / (A2)] of component (A3) to component (A2) in composition (A) is preferably 0.01 or more, more preferably 0.03 or more, still more preferably 0.05 or more, even more preferably 0.1 or more, even more preferably 0.15 or more, and even more preferably 0.2 or more, from the viewpoints of improving the texture during use in step (II), improving the amount of foam, and improving the ease of elongation during coating of the foaming treatment agent composition. Also, it is preferably 8 or less, more preferably 5 or less, still more preferably 2 or less, even more preferably 1 or less, even more preferably 0.5 or less, and even more preferably 0.3 or less.

[0036] The mass ratio of component (A3) to the total amount of components (A1) and (A2) in composition (A), [(A3) / {(A1)+(A2)}], is preferably 0.001 or more, more preferably 0.005 or more, still more preferably 0.01 or more, even more preferably 0.02 or more, even more preferably 0.05 or more, and even more preferably 0.08 or more, from the viewpoints of improving the texture during use in step (II) of the foaming treatment composition, improving the foam amount, and improving the ease of spreading during coating. Also, it is preferably 5 or less, more preferably 4 or less, still more preferably 2 or less, even more preferably 1 or less, even more preferably 0.5 or less, even more preferably 0.3 or less, and even more preferably 0.2 or less.

[0037] 〔Other components〕 In addition to the above components (A1) to (A3), composition (A) may appropriately contain components usually used in cosmetic compositions, as long as the object of the present invention is not impaired. Examples of such components include excipients, pH adjusters, surfactants, silicones, aromatic alcohols, coloring components, oils, preservatives, moisturizers, pearlescent agents, ceramides, fragrances, ultraviolet absorbers, and the like.

[0038] 〔Method for producing composition (A)〕 The method for producing composition (A) is not particularly limited, and known methods can be used. For example, composition (A) can be prepared by blending components (A1) to (A3) in powder or granular form, and other components as necessary, and dry-blending them. As long as composition (A) can be a powder or granular composition, at least a part of components (A1) to (A3) may be granulated. However, from the viewpoint of storage stability, it is preferable that components (A1) and (A2) are not simultaneously contained in the same granulated particles. From the above viewpoints, a preferred embodiment when a part of components (A1) to (A3) is granulated is an embodiment in which components other than component (A1), that is, components containing component (A2) and component (A3), are granulated. As the granulation method, any one of a fluidized bed granulation method, a stirring granulation method, a rolling granulation method, or an extrusion granulation method can be used. Among these, the fluidized bed granulation method is preferably used. As one embodiment of the granulation method by the fluidized bed granulation method, for example, a powdery granulation raw material containing the component (A2) is charged into a fluidized bed granulator, and a solution in which the component (A3) is dissolved in water, ethanol, or a mixed solution thereof is added to the obtained mixture for granulation. In this case, the component (A3) acts as a binder. Next, the obtained granulated particles (granulated particles containing the component (A2) and the component (A3)) and other ungranulated components (powder of the component (A1)) are dry-blended to produce a powdery or granular composition (A).

[0039] (Hair or fiber treatment agent composition (B) for headdress products) The fiber treatment agent composition for hair or headdress products, which is the composition (B), is preferably a liquid composition containing water from the viewpoint of foaming by mixing with the composition (A) during use. The term "liquid" as used herein means liquid at normal temperature. Note that the dosage form of the composition (B) is not limited to liquid, and it may be paste-like or cream-like.

[0040] From the viewpoints of the solubility of the composition (A), the improvement of the texture during use in the step (II), the improvement of the foam amount, and the improvement of the ease of spreading during application, the water content in the composition (B) is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 65% by mass or more, even more preferably 70% by mass or more, even more preferably 75% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more. Also, from the viewpoint of expressing the performance as a treatment agent composition, it is preferably 99.9% by mass or less, more preferably 99% by mass or less.

[0041] The composition (B) is a fiber treatment agent composition for hair or a hair accessory product, preferably a hair treatment agent composition. The type of the fiber treatment agent composition for hair or a hair accessory product is not particularly limited, and examples thereof include a detergent composition, a conditioning agent composition (including a non-rinse type), a styling agent composition, a dyeing agent composition, etc. for hair or a fiber of a hair accessory product. Preferably, it is a detergent composition or a conditioning agent composition for hair or a fiber of a hair accessory product, and more preferably a hair detergent composition or a hair conditioning agent composition. In the treatment method of the present invention, from the viewpoint of applying the foamed treatment agent composition prepared in step (I) to the hair or the fiber of the hair accessory product in step (II), the above-mentioned "hair treatment agent composition" does not include a hair growth agent composition.

[0042] [One or more surfactants (B1) selected from the group consisting of an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant] When the composition (B) is a detergent composition for hair or a fiber of a hair accessory product, from the viewpoint of improving detergency, the composition (B) preferably contains one or more surfactants (B1) selected from the group consisting of an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant (hereinafter, also simply referred to as "surfactant (B1)" or "component (B1)").

[0043] ≪Anionic surfactant≫ Examples of the anionic surfactant include alkyl or alkenyl sulfates, alkyl or alkenyl ether sulfates, alkyl sulfonates, alkylbenzene sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfo fatty acid salts, N-acyl amino acid salts, N-acyl taurine salts, phosphoric acid mono- or diester salts, sulfosuccinic acid ester salts, etc. One or more of these can be used. The hydrocarbon group such as an alkyl group or an alkenyl group, or the constituent fatty acid of the above-mentioned anionic surfactant preferably has 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and still more preferably 10 to 18 carbon atoms. As counterions of the anionic group of the anionic surfactant, there are alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; alkanolammonium having 1 to 3 alkanol groups with 2 or 3 carbon atoms (for example, monoethanolammonium, diethanolammonium, triethanolammonium, triisopropanolammonium, etc.).

[0044] Among the above, as the anionic surfactant, from the viewpoints of improving the detergency of hair or fibers for headgear products, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during coating, it preferably contains one or more selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl ether carboxylates, N-acyl amino acid salts, and N-acyl taurine salts. Examples of the above alkyl sulfates include sodium lauryl sulfate. Examples of the alkyl ether sulfates include polyoxyethylene alkyl ether sulfates such as sodium lauryl ether sulfate and ammonium lauryl ether sulfate. Examples of the alkyl ether carboxylates include polyoxyethylene alkyl ether acetates such as sodium lauryl ether acetate. Examples of the N-acyl amino acid salts include N-acyl glutamate salts such as sodium cocoyl glutamate. Examples of the N-acyl taurine salts include N-acyl-N-methyl taurine salts such as sodium cocoyl methyl taurine.

[0045] Among them, as the anionic surfactant, from the viewpoints of improving the detergency of hair or fibers for hair accessory products, improving the texture during use in step (II), improving the amount of foam, and improving the ease of spreading during application, more preferably, it contains one or more selected from the group consisting of alkyl ether sulfates, N-acyl amino acid salts, and N-acyl taurine salts. Even more preferably, it contains one or more selected from the group consisting of polyoxyethylene alkyl ether sulfates, N-acyl glutamate salts, and N-acyl-N-methyl taurine salts. Even more preferably, it contains polyoxyethylene alkyl ether sulfate. Even more preferably, it contains one or more selected from the group consisting of sodium lauryl sulfate and ammonium lauryl sulfate. Even more preferably, it contains ammonium lauryl sulfate.

[0046] From the viewpoint of improving the detergency of hair or fibers for hair accessory products, the content of polyoxyethylene alkyl ether sulfate in the anionic surfactant is preferably 50% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, even more preferably 90% by mass or more, and 100% by mass or less.

[0047] ≪Amphoteric Surfactant≫ Examples of the amphoteric surfactant include betaine-type surfactants and amine oxide-type surfactants. Among these, from the viewpoints of improving the detergency of hair or fibers for hair accessory products, improving the texture during use in step (II), improving the amount of foam, and improving the ease of spreading during application, a betaine-type surfactant is preferred.

[0048] Examples of the betaine-type surfactant include carboxybetaines such as alkyldimethylaminoacetic acid betaine and fatty acid amide propyl betaine; sulfobetaines such as alkylsulfobetaine and alkylhydroxysulfobetaine (alkylhydroxysultaine); imidazoline-based betaines; and phosphobetaines.

[0049] Among carboxybetaines, as alkyldimethylaminoacetic acid betaines, those having an alkyl group with preferably 8 to 22 carbon atoms, more preferably 10 to 20 carbon atoms are exemplified. Specific examples of alkyldimethylaminoacetic acid betaines include lauryldimethylaminoacetic acid betaine and stearyldimethylaminoacetic acid betaine. As fatty acid amidopropyl betaines, those having an acyl group with preferably 8 to 18 carbon atoms, more preferably 10 to 16 carbon atoms are exemplified. Specific examples of fatty acid amidopropyl betaines include lauric acid amidopropyl betaine [lauramidopropyl betaine], palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine [cocamidopropyl betaine].

[0050] Among sulfobetaines, as alkylsulfobetaines, alkylsulfobetaines having an alkyl group with preferably 8 to 22 carbon atoms, more preferably 10 to 18 carbon atoms are exemplified. Specific examples of alkylsulfobetaines include lauryldimethylsulfethyl betaine, lauryldimethylsulfopropyl betaine, myristyldimethylsulfethyl betaine, myristyldimethylsulfopropyl betaine, stearyldimethylsulfethyl betaine, stearyldimethylsulfopropyl betaine, and coconut oil fatty acid dimethylsulfopropyl betaine.

[0051] Examples of the alkylhydroxysulfobetaine preferably include an alkylhydroxysulfobetaine having an alkyl group with 8 to 22 carbon atoms, more preferably 10 to 18 carbon atoms, and at least one hydroxy group. Specific examples of the alkylhydroxysulfobetaine include lauryldimethylsulfohydroxyethyl)betaine, lauryldimethylsulfohydroxypropyl)betaine [also referred to as lauryl hydroxysultaine or lauryl hydroxysulfobetaine], myristyldimethylsulfohydroxyethyl)betaine, myristyldimethylsulfohydroxypropyl)betaine, stearyldimethylsulfohydroxypropyl)betaine, bis-(2-hydroxy-ethyl)sulfopropylbetaine, and laurylbis-(2-hydroxy-ethyl)sulfopropylbetaine.

[0052] Examples of the imidazoline-based betaine include N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate. For example, N-coconut fatty acid acyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine [also referred to as coco amphoacetate Na or 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine], N-coconut fatty acid acyl-N'-carboxyethyl-N'-hydroxyethyl ethylenediamine [coco amphopropionate Na], and sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine [lauro amphoacetate Na] can be mentioned. Examples of the phosphobetaine include lauryl hydroxyphosphobetaine.

[0053] Among these, as the amphoteric surfactant, from the viewpoints of improving the detergency of hair or fibers for hair accessories, improving the texture during use in step (II), improving the amount of foam, and improving the ease of spreading during application, it preferably contains one or more selected from the group consisting of fatty acid amide propyl betaine, alkyl hydroxy sulfobetaine, and imidazoline-based betaine, and more preferably contains one or more selected from the group consisting of lauramide propyl betaine, lauryl hydroxy sultaine, and Na cocoamphoacetate.

[0054] ≪Nonionic surfactant≫ Examples of the nonionic surfactant include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, alkyl glucoside, alkyl alkanolamide, alkyl glyceryl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, polyoxyalkylene hydrogenated castor oil, alkyl saccharide, etc., and one or more of these can be used. The alkyl group in polyoxyalkylene alkyl ether, alkyl glucoside, alkyl alkanolamide, alkyl glyceryl ether, and alkyl saccharide, the alkenyl group in polyoxyalkylene alkenyl ether, and the fatty acid in polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, higher fatty acid sucrose ester, and polyglycerin fatty acid ester preferably have 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and still more preferably 8 to 12 carbon atoms.

[0055] Among them, nonionic surfactants are preferably selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, alkyl glucosides, alkyl alkanolamides, alkyl glyceryl ethers, and polyoxyalkylene hydrogenated castor oil from the viewpoints of improving the detergency of hair or fibers for headgear products, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during application. More preferably, it contains one or more selected from the group consisting of polyoxyalkylene alkyl ethers, alkyl glucosides, alkyl alkanolamides, alkyl glyceryl ethers, and polyoxyalkylene hydrogenated castor oil.

[0056] As the polyoxyalkylene alkyl ether, preferably, it is a polyoxyethylene alkyl ether or a polyoxypropylene alkyl ether having an alkyl group with 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and even more preferably 8 to 12 carbon atoms, and preferably contains a polyoxyethylene alkyl ether. The average number of moles of alkylene oxide (AO) added to the polyoxyalkylene alkyl ether is preferably 2 to 60, more preferably 2 to 40, even more preferably 3 to 20, and even more preferably 6 to 20 from the viewpoints of improving the detergency of hair or fibers for headgear products, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during application.

[0057] Specific examples of the polyoxyalkylene alkyl ether include polyoxyethylene lauryl ether, polyoxyethylene tridecyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene isostearyl ether, polyoxyethylene behenyl ether, polypropylene glycol caprylyl ether, and the like. Examples of commercially available polyoxyalkylene alkyl ethers include "Emulgen 103" (laureth-3: PEG-3 lauryl ether), "Emulgen 116" (laureth-16: PEG-16 lauryl ether), "Emulgen 306P" (steareth-6: polyoxyethylene (6) stearyl ether), "Kaosohu Care GP-1" (PPG-3 caprylyl ether), etc., manufactured by Kao Corporation.

[0058] Examples of alkyl glucosides preferably include those having an alkyl group with 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and even more preferably 8 to 12 carbon atoms. Specific examples include decyl glucoside, lauryl glucoside, cetyl glucoside, stearyl glucoside, etc. Examples of commercially available alkyl glucosides include "Mydol 10" (decyl glucoside), "AG-124" (lauryl glucoside), etc., manufactured by Kao Corporation.

[0059] Examples of alkyl alkanolamides preferably include fatty acid ethanolamides or fatty acid diethanolamides having an acyl group with 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and even more preferably 8 to 12 carbon atoms. Specific examples include palm kernel oil fatty acid diethanolamide, lauric acid diethanolamide, coconut oil fatty acid N-methyl ethanolamide, etc. Examples of commercially available alkyl alkanolamides include "Aminon PK-02S" (palm kernel oil fatty acid diethanolamide), "Aminon L-02" (lauric acid diethanolamide), "Aminon C-11S" (coconut oil fatty acid N-methyl ethanolamide), etc., manufactured by Kao Corporation.

[0060] As the alkyl glyceryl ether, preferably an alkyl glyceryl ether having an alkyl group with 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and even more preferably 8 to 12 carbon atoms is mentioned. Specific examples thereof include "Penetol GE-ID" (isodecyl glyceryl ether) manufactured by Kao Corporation. As the polyoxyalkylene hydrogenated castor oil, "Emalnon CH-60K" (PEG-60 hydrogenated castor oil) manufactured by Kao Corporation is mentioned.

[0061] The nonionic surfactant is more preferably included one or more selected from the group consisting of polyoxyalkylene alkyl ethers and alkyl glucosides, even more preferably included one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene tridecyl ether and alkyl glucoside, and even more preferably included one or more selected from the group consisting of polyoxyethylene lauryl ether and lauryl glucoside, from the viewpoints of improving the detergency of hair or fibers for headgear products, improving the texture during use in step (II), improving the amount of foam, and improving the ease of spreading during application.

[0062] One or more kinds of the surfactant (B1) can be used. Among these, from the viewpoints of improving the detergency of hair or fibers for headdress products, improving the texture during use in step (II), improving the foam volume, and improving the ease of stretching during application, the surfactant (B1) preferably contains at least one selected from the group consisting of alkyl ether sulfates, N-acyl amino acid salts, N-acyl taurine salts, fatty acid amide propyl betaines, alkyl hydroxy sulfobetaines, imidazoline-based betaines, polyoxyalkylene alkyl ethers, and alkyl glucosides. More preferably, it contains at least one selected from the group consisting of alkyl ether sulfates, fatty acid amide propyl betaines, alkyl hydroxy sulfobetaines, imidazoline-based betaines, polyoxyalkylene alkyl ethers, and alkyl glucosides. Even more preferably, it contains at least one selected from the group consisting of ammonium lauryl sulfate, lauramidopropyl betaine, lauryl hydroxysultaine, sodium cocoamphoacetate, polyoxyethylene lauryl ether, and lauryl glucoside. Even more preferably, it contains ammonium lauryl sulfate.

[0063] Also, from the viewpoint of improving the detergency of hair or fibers for headdress products, the surfactant (B1) preferably contains at least an anionic surfactant. The content of the anionic surfactant in the surfactant (B1) is preferably 40% by mass or more, more preferably 50% by mass or more, even more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, and 100% by mass or less from the viewpoint of improving the detergency of hair or fibers for headdress products.

[0064] When the composition (B) contains a surfactant (B1), from the viewpoints of improving the detergency of hair or fibers for hair accessory products, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during application, the content of the surfactant (B1) in the composition (B) is preferably 0.1% by mass or more, more preferably 1% by mass or more, still more preferably 3% by mass or more, even more preferably 5% by mass or more, even more preferably 7% by mass or more, and is preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, even more preferably 15% by mass or less.

[0065] When the composition (B) is a conditioning agent composition for hair or fibers for hair accessory products, the composition (B) preferably contains a cationic surfactant (B2) (hereinafter also simply referred to as "surfactant (B2)" or "component (B2)"). Examples of the cationic surfactant include (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium salts, (iii) dialkyldimethylammonium salts, (iv) alkylamidopropyltrimethylammonium salts, (v) alkyldimethylamines and their salts, (vi) alkoxyalkyldimethylamines and their salts, and (vii) alkylamidopropyldimethylamines and their salts, etc. One or more of these can be used.

[0066] Examples of the (i) alkyltrimethylammonium salt preferably include alkyltrimethylammonium salts having an alkyl group with 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms. Specifically, cetyltrimethylammonium chloride (cetrimonium chloride), stearyltrimethylammonium chloride (steartrimonium chloride), behenyltrimethylammonium chloride, etc. can be mentioned. ​(ii) As the alkoxyalkyltrimethylammonium salt, preferably an alkoxyalkyltrimethylammonium salt having an alkoxy group with 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, is mentioned. Specifically, stearoxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride, stearoxyhydroxypropyltrimethylammonium chloride, etc. are mentioned. (iii) As the dialkyldimethylammonium salt, preferably a dialkyldimethylammonium salt having an alkyl group with 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, is mentioned. Specifically, distearyldimethylammonium chloride, etc. are mentioned. (iv) As the alkylamidopropyltrimethylammonium salt, preferably an alkylamidopropyltrimethylammonium salt having an alkyl group with 11 to 21 carbon atoms, more preferably 13 to 19 carbon atoms, is mentioned. Specifically, palmitamidopropyltrimethylammonium chloride (palmitamidopropyltrimonium chloride), etc. are mentioned.

[0067] (v) Alkyl dimethylamine, (vi) alkoxyalkyl dimethylamine, and (vii) alkylamidopropyl dimethylamine react with an acid to form a tertiary amine salt and become a cationic surfactant. (v) The alkyl group in alkyl dimethylamine and its salt, and (vi) alkoxyalkyl dimethylamine and its salt is preferably an alkyl group with 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms. (vii) The alkyl group in alkylamidopropyl dimethylamine and its salt is preferably an alkyl group with 11 to 21 carbon atoms, more preferably 15 to 19 carbon atoms.

[0068] (v) to (vii) amines may be previously reacted with an acid to form a salt and incorporated into Composition (B), or may be incorporated into Composition (B) as amines as they are, and further an acid may be incorporated into Composition (B) to form a salt in the composition. Therefore, here, the above amines and their salts are defined as cationic surfactants. Also, the content is converted in terms of the mass of the above amines.

[0069] Examples of the salts of the amines of (v) to (vii) include salts with organic acids or inorganic acids. Examples of organic acids include monocarboxylic acids such as acetic acid and propionic acid; dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, and phthalic acid; polycarboxylic acids such as polyglutamic acid; hydroxycarboxylic acids such as glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid, and citric acid; acidic amino acids such as glutamic acid and aspartic acid. Examples of inorganic acids include hydrochloric acid, sulfuric acid, phosphoric acid, etc. Among these, organic acids are preferred, and one or more selected from the group consisting of dicarboxylic acids, hydroxycarboxylic acids, and acidic amino acids are more preferred. As the dicarboxylic acid, one or more selected from the group consisting of maleic acid and succinic acid are more preferred. As the hydroxycarboxylic acid, one or more selected from the group consisting of glycolic acid, lactic acid, and malic acid are more preferred. As the acidic amino acid, glutamic acid is more preferred.

[0070] Examples of (v) alkyldimethylamines and their salts include N,N-dimethylbehenylamine, N,N-dimethylstearylamine, and their organic acid salts, and the lactate of N,N-dimethylbehenylamine, the glycolate of N,N-dimethylstearylamine, etc. are preferred.

[0071] (vi) Examples of the alkoxyalkyldimethylamine and its salt include N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine, and their organic acid salts. N,N-dimethyl-3-hexadecyloxypropylamine or its salt, N,N-dimethyl-3-octadecyloxypropylamine (stearoxypropyl dimethylamine) or its salt is preferred.

[0072] (vii) Examples of the alkylamidalkyldimethylamine and its salt include N-[3-(dimethylamino)propyl]docosanamide, N-[3-(dimethylamino)propyl]stearamide, and their organic acid salts. The lactate of N-[3-(dimethylamino)propyl]docosanamide and the glycolate of N-[3-(dimethylamino)propyl]stearamide are preferred.

[0073] One or more surfactants (B2) can be used. Among the above, from the viewpoints of improving the conditioning effect of the hair or the fiber for the hair ornament product, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during application, the surfactant (B2) preferably contains one or more selected from the group consisting of (i) alkyltrimethylammonium salts and (vii) alkylamidalkyldimethylamines and their salts. More preferably, it contains (i) an alkyltrimethylammonium salt, and still more preferably, it contains one or more selected from the group consisting of cetyltrimethylammonium chloride (cetrimonium chloride), stearyltrimethylammonium chloride (steartrimonium chloride), and behenyltrimethylammonium chloride.

[0074] When the composition (B) contains a surfactant (B2), from the viewpoints of improving the conditioning effect on hair or fibers for hair ornament products, improving the texture during use in step (II), improving the foam volume, and improving the ease of spreading during application, the content of the surfactant (B2) in the composition (B) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, and is preferably 15% by mass or less, more preferably 10% by mass or less, still more preferably 7% by mass or less, even more preferably 5% by mass or less.

[0075] 〔Other components〕 When the composition (B) is a conditioning agent composition for hair or fibers for hair ornament products, the composition (B) may further contain one or more selected from the group consisting of higher alcohols and silicones for the purpose of improving the feel of the treated hair or fibers for hair ornament products.

[0076] Examples of the higher alcohol include aliphatic monohydric alcohols having 12 or more carbon atoms, preferably 12 to 22 carbon atoms. Examples of the higher alcohol include one or more selected from the group consisting of lauryl alcohol, cetyl alcohol, myristyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, behenyl alcohol, and cetostearyl alcohol [cetearyl alcohol]. When the composition (B) contains a higher alcohol, the content of the higher alcohol in the composition (B) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and is preferably 20% by mass or less, more preferably 15% by mass or less, still more preferably 10% by mass or less.

[0077] Examples of silicone include one or more selected from the group consisting of dimethylpolysiloxane [dimethicone], methylphenylpolysiloxane, amino-modified silicone, polyether-modified silicone, aminopolyether-modified silicone, glyceryl-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy-modified silicone, fluorine-modified silicone, and alkyl-modified silicone. When the composition (B) contains silicone, the content of silicone in the composition (B) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, and is preferably 20% by mass or less, more preferably 15% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, even more preferably 3% by mass or less, even more preferably 2% by mass or less.

[0078] The composition (B) may further appropriately contain components usually used in cosmetic compositions, as long as the object of the present invention is not impaired. Examples of such components include pH adjusters, aromatic alcohols, cationic polymers, coloring components, oils, anti-dandruff agents, vitamin agents, bactericides, anti-inflammatory agents, preservatives, chelating agents, moisturizers, pearlescent agents, ceramides, fragrances, ultraviolet absorbers, aqueous media other than water, and the like.

[0079] The method for producing the composition (B) is not particularly limited, and conventional methods can be used. In addition, as the composition (B), a commercially available fiber treatment agent composition for hair or hair ornaments may be used.

[0080] In step (I), the composition (A) and the composition (B) are mixed at the time of use to cause foaming, thereby preparing a foamed treatment agent composition. In step (I), the mixing ratio [(A) / (B)] of the composition (A) and the composition (B) is preferably from 0.05 / 1 to 1 / 1 by mass, more preferably from 0.06 / 1 to 0.8 / 1, even more preferably from 0.07 / 1 to 0.5 / 1, and still more preferably from 0.08 / 1 to 0.3 / 1, from the viewpoints of improving the texture during use in step (II), improving the amount of foam, and improving the ease of spreading during application.

[0081] In step (I), the mixing method of the composition (A) and the composition (B) is not particularly limited. For example, the user can mix the composition (A) and the composition (B) on the palm to foam, and the obtained foamed treatment agent composition can be used in step (II).

[0082] <Step (II)> In step (II), the foamed treatment agent composition prepared in step (I) is applied to the hair or the fiber for the hair accessory product. As a method for applying the foamed treatment agent composition to the hair or the fiber for the hair accessory product, any method can be used as long as the foamed treatment agent composition can be brought into contact with the hair or the fiber for the hair accessory product. For example, a method of applying the composition to the dry or wet hair or the fiber for the hair accessory product, a method of immersing the dry or wet hair or the fiber for the hair accessory product in the composition, etc. can be mentioned. Among the above, when the foamed treatment agent composition is a detergent composition or a conditioning agent composition, a method of applying the foamed treatment agent composition to the wet hair or the fiber for the hair accessory product is preferable.

[0083] The amount of the foamed treatment agent composition applied to the hair or the fiber for the hair accessory product is preferably from 1:0.01 to 1:3, more preferably from 1:0.02 to 1:1, even more preferably from 1:0.02 to 1:0.5, and still more preferably from 1:0.02 to 1:0.2 in terms of bath ratio (dry mass of the hair or the fiber for the hair accessory product: mass of the foamed treatment agent composition), from the viewpoints of obtaining a sufficient treatment effect and economy. When the application target of the foamed treatment agent composition is the hair, the hair is preferably the scalp hair, and it may be at least a part of the scalp hair.

[0084] In step (II), when the foaming treatment agent composition is a detergent composition, it is preferable to perform a foaming operation by hand after applying the foaming treatment agent composition to the hair or the fiber for the headgear product. When the foaming treatment agent composition is a conditioning agent composition, after applying the foaming treatment agent composition to the hair or the fiber for the headgear product and rubbing it in with the hand or a comb, a step of leaving it to stand may be performed. The standing time is not particularly limited, but from the viewpoint of effectively obtaining the conditioning effect and reducing the burden on the user or the subject, it is preferably 1 minute or more and 60 minutes or less, more preferably 3 minutes or more and 30 minutes or less.

[0085] The treatment method of the present invention preferably includes a step of rinsing the foaming treatment agent composition applied to the hair or the fiber for the headgear product after step (II) (hereinafter, also simply referred to as the "rinsing step"). The rinsing step is performed by rinsing the foaming treatment agent composition applied to the hair or the fiber for the headgear product in step (II) with water. The temperature of the water is not particularly limited, but warm water at 35 to 45°C is preferable.

[0086] <Drying step> In the treatment method of the present invention, after performing the rinsing step following step (II), a step of drying the hair or the fiber for the headgear product (hereinafter, also simply referred to as the "drying step") is performed, and it is preferable to dry the hair or the fiber for the headgear product. The drying step includes towel drying, drying with a dryer (cold air or hot air), air drying, and performing a combination of two or more of these drying treatments.

Examples

[0087] Hereinafter, examples of the present invention will be described, but the present invention is not limited to the scope of the examples. In this example, various evaluations were performed by the following methods.

[0088] <Carbon dioxide concentration at 20-fold dilution> Regarding Examples 1 to 7 and 12 to 18 and Comparative Examples 1 and 3, evaluations were performed in the following manner. 0.2 g of composition (A) described in Tables 1 and 3, 1.0 g of composition (B), and 19 g of ion-exchanged water were stirred with a spoon for 10 seconds to prepare a 20-fold dilution based on composition (B). The carbonic acid concentration was measured with the probe of an ion meter ("IM-32P" manufactured by Toa DKK Corporation) inserted into the composition, with the time when the probe was inserted as the measurement start time (0 seconds). The carbonic acid concentration (g / L) 90 seconds after the start of measurement was shown in the table as the "carbonic acid concentration at 20-fold dilution". Regarding Comparative Examples 2 and 4, since composition (A), which is the carbon dioxide gas generation source, was not used, the measurement was not conducted, and the carbonic acid concentration was indicated as "0" in the table. Regarding Examples 8 to 11, evaluation was performed in the same manner as above, except that 1.0 g of composition (B) described in Table 2 and composition (A) were mixed at the mixing ratio described in Table 2 to prepare a foamed treatment agent composition.

[0089] <Texture of the foamed treatment agent composition> Regarding Examples 1 to 7, 12 to 18, Comparative Example 1 and 3, evaluation was performed in the following manner. 0.2 g of composition (A) and 1.0 g of composition (B) described in Tables 1 and 3 were mixed with a finger on a plastic plate measuring 7.5 cm × 7.5 cm for 5 seconds to prepare a foamed treatment agent composition. The texture of the obtained composition was evaluated in four grades according to the following criteria based on the appearance of the composition and the ease of dripping of the composition when the plastic plate was tilted at 45 degrees. Regarding Comparative Examples 2 and 4, evaluation was performed in the same manner as above using 1.0 g of the hair treatment agent composition (B) described in the table. Regarding Examples 8 to 11, evaluation was performed in the same manner as above, except that 1.0 g of composition (B) described in Table 2 and composition (A) were mixed at the mixing ratio described in Table 2 to prepare a foamed treatment agent composition. (Evaluation criteria) 1: The appearance of the composition is liquid, and it drips immediately when the plastic plate is tilted at 45 degrees. Or, the appearance of the composition is in a mamako state or gel state and does not seem to foam. 2: The appearance of the composition is slightly foamed, and it drips within 10 seconds when the plastic plate is tilted at 45 degrees. 3: The appearance of the composition is foamy. When the plastic plate is tilted at an angle of 45 degrees, it does not drip for 10 seconds, but dripping is observed when the time exceeds 10 seconds. 4: The appearance of the composition is foamy, and there is no dripping of the composition even when the plastic plate is tilted at an angle of 45 degrees.

[0090] <Foam amount of the foaming treatment agent composition> For Examples 1 to 7 and Comparative Example 1, the evaluation was conducted in the following manner. A hair tress with a mass of about 20 g and a length of 20 cm (prepared from the hair of Japanese women who have not undergone chemical treatment) was wetted with tap water and then washed with a plain shampoo having the following composition. The hair tress was not dried and was used for evaluation in a wet state. 0.2 g of the composition (A) described in Table 1 and 1.0 g of the composition (B) were mixed in the hand for 5 seconds to prepare a foaming treatment agent composition (Step (I)). Next, the composition was applied to the wet hair tress (Step (II)) and foamed by hand for 10 seconds. The foam amount at this time was scored on a 9-point scale in 0.5 increments from 1 to 5, with the foam amount when using 1.0 g of the hair treatment agent composition (B) used in Example 1 alone as the score "3". The higher the score, the more the foam amount, indicating a better result. For Comparative Example 2, the evaluation was conducted in the same manner as above using 1.0 g of the hair treatment agent composition (B) described in Table 1. For Examples 8 to 11, the evaluation was conducted in the same manner as above, except that 1.0 g of the composition (B) described in Table 2 and the composition (A) were mixed at the mixing ratio described in Table 2 to prepare a foaming treatment agent composition.

[0091] 〔Plain shampoo composition〕 *The blending amount is the amount of the active ingredient. (Mass %) Sodium polyoxyethylene (2.0) lauryl ether sulfate (*1) : 47.2 Diethanolamine laurate (*2) : 2.5 Sodium benzoate : 1.1 Sodium chloride : 1.2 Ion-exchanged water: 86.6 Total: 100.0 (*1) 47.2 mass% as "Emar 227" manufactured by Kao Corporation (active ingredient content: 27 mass%) (*2) Aminon C-11S (manufactured by Kao Corporation), active ingredient content: 100 mass%

[0092] <Ease of spreading of the foaming treatment agent composition when applied to hair> For Examples 12 to 18 and Comparative Example 3, the evaluation was conducted as follows. Hair tresses with a mass of approximately 20 g and a length of 20 cm (prepared from the hair of Japanese women without chemical treatment) were wetted with tap water and then washed with the plain shampoo of the said composition. The hair tresses were not dried and were used for evaluation in the wet state. 0.2 g of the composition (A) described in Table 3 and 1.0 g of the composition (B) were mixed in the hand for 5 seconds to prepare a foaming treatment agent composition (Step (I)). Next, the said composition was applied to the wet hair tresses (Step (II)). Regarding the ease of spreading of the composition on the hair at this time, when 1.0 g of the composition (B) of Example 12 was used alone, the ease of spreading was taken as score "3", and a nine-stage scoring was performed in 0.5 increments from score 1 to 5. A higher score means better spreading of the composition. For Comparative Example 4, the evaluation was conducted in the same manner as above using 1.0 g of the hair treatment agent composition (B) described in Table 3.

[0093] Examples 1 to 18, Comparative Examples 1 to 4 In Examples 1 to 18 and Comparative Examples 1 and 3, each component (all in powder form) described in "Composition (A)" in Tables 1 to 3 was dry-blended at room temperature to prepare Composition (A) which is a powder composition. Also, each component described in "Hair treatment agent composition (B)" in Tables 1 to 3 was mixed at room temperature to prepare a liquid hair treatment agent composition (B). Note that the hair treatment agent composition (B) described in Tables 1 and 2 is a hair cleansing agent composition (shampoo), and the hair treatment agent composition (B) described in Table 3 is a hair conditioning agent composition (conditioner). In Examples 1 to 18, Comparative Examples 1 and 3, the above Composition (A) and the hair treatment agent composition (B) were mixed at the mixing ratios described in the table to prepare a foamy hair treatment agent composition, which was used for the above evaluation. In Comparative Examples 2 and 4, the hair treatment agent composition (B) described in the table was used for the above evaluation. The evaluation results are shown in the table below.

[0094]

Table 1

[0095]

Table 2

[0096]

Table 3

[0097] As the components described in the table, the following were used. <(A1)> · Sodium bicarbonate: manufactured by FUJIFILM Wako Pure Chemical Corporation (reagent) · Sodium carbonate: manufactured by FUJIFILM Wako Pure Chemical Corporation (reagent) <(A2) Organic acid> · Citric acid: manufactured by FUJIFILM Wako Pure Chemical Corporation, citric acid (crystalline) (reagent) · Succinic acid: manufactured by Nippon Shokubai Co., Ltd. · Malic acid: manufactured by FUJIFILM Wako Pure Chemical Corporation, DL-malic acid (reagent) <(A3) Thickener> · Carboxymethyl cellulose: "Sunrose F35SH" manufactured by Nippon Paper Industries Co., Ltd. · Hydroxyethyl cellulose: "HEC Daicel SE850K" manufactured by Daicel Miraiz Co., Ltd. · Hydroxypropylmethyl cellulose: "Metolose 60SH-4000" manufactured by Shin-Etsu Chemical Co., Ltd. · Corn starch: manufactured by FUJIFILM Wako Pure Chemical Corporation (reagent)

[0098] <Anionic surfactant> · Ammonium lauryl sulfate: "Emal 125A" manufactured by Kao Corporation

[0099] <Cationic surfactant> · Steartrimonium chloride: "Cotamine 86W" manufactured by Kao Corporation

[0100] From Tables 1 to 3, according to the treatment method of the present invention, the carbonic acid concentration in the foamy treatment agent composition prepared in step (I) is high and the texture is good. Furthermore, the foamy hair cleansing agent compositions of the present examples in Tables 1 and 2 have a large amount of foam when applied to the hair and foamed in step (II), and the foamy hair conditioning agent compositions of the present examples in Table 3 are easy to spread when applied to the hair in step (II). Therefore, it is considered that all of them can exhibit good treatment effects.

Industrial applicability

[0101] According to the present invention, in a method for treating hair or fibers for headdress products using a fiber treatment agent composition for hair or headdress products, the texture during use of the treatment agent composition is good, sufficient foam volume can be obtained when washing the hair or fibers for headdress products, and when conditioning the hair or fibers for headdress products, the spread during application to the hair or fibers for headdress products is good, and a treatment method capable of obtaining an excellent treatment effect can be provided.

Claims

1. A method for treating hair or fibers for head accessories, comprising the following steps (I) and (II) in that order: Step (I): A step of preparing a foam treatment composition by mixing a powder or granular composition (A) containing the following components (A1) to (A3) with a fiber treatment composition for hair or head accessories (B) at the time of use to foam the composition. (A1) One or more selected from the group consisting of hydrogen carbonates and carbonates (A2) Organic acid (A3) Thickener Step (II): A step of applying the foam treatment composition to hair or fibers for head accessories.

2. The method according to claim 1 , wherein the component (A1) comprises at least one member selected from the group consisting of sodium bicarbonate and sodium carbonate.

3. The method according to claim 1 or 2, wherein the component (A2) comprises at least one selected from the group consisting of succinic acid, fumaric acid, citric acid, tartaric acid, and malic acid.

4. The method according to claim 1 or 2, wherein the component (A3) comprises one or more members selected from the group consisting of carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and corn starch.

5. The method according to claim 1 or 2, wherein the content of the component (A1) in the composition (A) is 10% by mass or more and 70% by mass or less.

6. The method according to claim 1 or 2, wherein the mass ratio [(A2) / (A1)] of the component (A2) to the component (A1) in the composition (A) is 0.2 or more and 5 or less.

7. 3. The method according to claim 1, wherein the mass ratio of the component (A3) to the total amount of the component (A1) and the component (A2) in the composition (A) [(A3) / {(A1)+(A2)}] is 0.001 or more and 5 or less.

8. The treatment method according to claim 1 or 2, wherein the composition (B) is a liquid composition containing water.

9. 3. The method according to claim 1, wherein in the step (I), a mixing ratio [(A) / (B)] of the composition (A) to the composition (B) is 0.05 / 1 to 1 / 1 in terms of mass ratio.

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