Hair treatment agent, or fiber treatment agent for headwear products

Abstract

To provide a hair treatment agent or a fiber treatment agent for headwear products which can give a pleasant touch to both dry and wet hair or fibers for headwear products, add excellent volume feel and heat setting effect during styling, and prevent the reduction of the added volume feel and heat setting effect after shampooing.SOLUTION: This hair treatment agent, or this fiber treatment agent for headwear products, contains the following components (A) to (C) and has a water content of at most 10 mass%: (A) a film-forming polymer that contains an M unit represented by (R1)3SiO1 / 2 (each R1 represents an optionally fluorine-substituted C1-12 hydrocarbon group or a hydroxy group, where the plurality of R1's may be the same or different from one another) and a Q unit represented by SiO4 / 2; (B) a film-forming polymer other than component (A); and (C) high-molecular-weight organopolysiloxane having a degree of polymerization of 2,200 to 20,000.SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to a hair treatment agent, or a fiber treatment agent for headwear products such as wigs and extensions. [Background technology]

[0002] In recent years, in the field of cosmetics, techniques for forming hydrophobic films have been investigated as a method to impart various properties such as gloss and a good feel to keratinous substances in skin, hair, etc. A technology using silicone-based film-forming polymers as hydrophobic film-forming polymers is known. For example, Patent Document 1 discloses a topical personal care composition for use in hair styling compositions, etc., comprising: a polysiloxane grafted adhesive polymer; a volatile, water-insoluble solvent for the polysiloxane grafted polymer; and a non-volatile drying aid for the polysiloxane grafted polymer, selected from the group consisting of silicone fluids having 1 to 100 siloxy units, waxes, silanes, silicone resins, and mixtures thereof, wherein the weight ratio of the polysiloxane grafted adhesive polymer to the drying aid is less than or equal to a predetermined value. Furthermore, it is disclosed that this composition can reduce the drying time of the hair styling composition without any substantial loss of hair-holding performance when completely dried.

[0003] Furthermore, since the properties imparted to keratin substances by cosmetics or to fibers used in headwear products by fiber treatment agents are often lost due to friction from daily activities or after a single wash, there is a demand for cosmetics or fiber treatment agents with superior durability. Generally, films formed by silicone-based film-forming polymers are hard and brittle, so efforts are being made to improve their feel and durability. For example, Patent Documents 2 and 3 describe the constituent unit (R 1 3SiO 1 / 2 ), (R 2 2SiO 2 / 2 ), (R 3 SiO 3 / 2 ), and (SiO4 / 2 )(wherein, R 1 , R 2 and R 3 are each independently a group selected from an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 12 carbon atoms, and a fluorine-substituted alkyl group having 1 to 8 carbon atoms), and a cosmetic comprising a silicone resin in which the ratio of each structural unit and the weight average molecular weight are within a predetermined range, which is not sticky during application, has good elongation, excellent usability, good water resistance, good adhesion to the skin, and thus excellent makeup sustainability, and can prevent adhesion to clothes etc. (secondary adhesion) is disclosed.

[0004] Patent Document 4 discloses a cosmetic composition capable of forming a multilayer structure after application to a keratin substance, comprising at least one silicone and / or hydrocarbon-containing film-forming agent having at least one glass transition temperature below 60 °C and one or more silicone compounds in an amount sufficient to achieve a viscosity of about 1,000 cSt to 22,000,000 cSt in a predetermined weight ratio, and the composition is described as having improved cosmetic properties upon application, particularly good durability, feel, gloss, brightness, and / or matte feel properties.

[0005] Patent Document 5 discloses that a phenyl silicone resin represented by a predetermined composition formula, having a weight average molecular weight and a refractive index of the film within predetermined ranges, is soluble in organic oily components such as silicone oil and hydrocarbon oil, and a uniform continuous film can be obtained, and the film has no stickiness and brittleness and good compatibility with an ultraviolet absorber. Also, it is described that a cosmetic containing the phenyl silicone resin has good usability and can prevent adhesion to clothes etc. (secondary adhesion).

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

[0007] Hair treatment agents and fiber treatment agents for headwear products such as wigs are desirable to be able to impart a good feel not only to dry hair and fibers used in headwear products, but also to wet hair and fibers used in headwear products. Furthermore, as described in Patent Document 1, among hair treatment agents and fiber treatment agents for headwear products, styling agents are desirable for improving the shape retention performance of hair or fibers for headwear products. Specifically, shape retention performance of hair or fibers for headwear products includes making it easy to create voluminous styles during styling (volume-granting ability), enabling clear shaping when styling with heat using a hair iron, etc. (heat-setting ability), and ensuring that the effects such as volume-granting ability and heat-setting ability are not easily lost even after washing the hair after applying the hair treatment agent or fiber treatment agent for headwear products. However, Patent Documents 1 to 5 do not disclose a hair treatment agent or fiber treatment agent for headwear products that can exhibit all of these effects.

[0008] The object of the present invention is to provide a hair treatment agent or a fiber treatment agent for headwear products that can impart a good feel to hair or fibers for headwear products in both dry and wet states, exhibit excellent volume-granting and heat-setting properties during styling, and suppress the decrease in effects such as volume-granting and heat-setting properties even after washing the hair. [Means for solving the problem]

[0009] The present inventors have found that a hair treatment agent or a fiber treatment agent for headwear products containing a silicone-based film-forming polymer having specific structural units, other film-forming polymers, and a high molecular weight organopolysiloxane having a degree of polymerization within a specific range, and having a water content of a predetermined amount or less, can solve the above problems, and have completed the present invention. In other words, the present invention relates to the following. [1] The following ingredients (A) to (C): (A)(R 1 )3SiO 1 / 2 (R 1 R represents a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. 1 These may be the same or different from each other.) M units and SiO are represented by these units. 4 / 2 A film-forming polymer containing Q units represented by (B) Film-forming polymers other than the component (A) (C) High molecular weight organopolysiloxanes with a degree of polymerization of 2,200 to 20,000 A hair treatment agent or a fiber treatment agent for headwear products, containing and having a water content of 10% by mass or less. [2] A method for treating hair or fibers for headwear products, comprising the steps of applying the hair treatment agent or fiber treatment agent for headwear products described in [1] above to hair or fibers for headwear products, and then drying them. [Effects of the Invention]

[0010] The hair treatment agent or fiber treatment agent for headwear products of the present invention can impart a good feel to hair or fibers for headwear products in both dry and wet states, exhibit excellent volume-enhancing and heat-setting properties during styling, and suppress the decrease in effects such as volume-enhancing and heat-setting properties even after washing the hair. [Modes for carrying out the invention]

[0011] [Definition] As used herein, "polymer" means a compound consisting of a repetition of one or more units (these units are derived from compounds known as monomers). These units are repeated at least twice, preferably at least three times. As used herein, "hair" primarily refers to head hair, but also includes hair used in headwear products. As used herein, "headwear products" means, for example, hair wigs, hairpieces, weaving, hair extensions, braided hair, hair accessories, doll hair, etc. As used herein, "fibers for headwear products" means fibers used in the headwear products. As used herein, "hydrophobic" means that the solubility of a substance in water is less than 1% by mass at 25°C. When used herein, "film formation" means leaving a preferably solid film on the substrate to which it is applied. As used herein, "durability" primarily means that the effect imparted by the hair treatment agent or the textile treatment agent for headwear products persists even after washing the hair after application (wash resistance). In this specification, "washing the hair" also includes washing the textiles used in headwear products. Furthermore, in the following descriptions, hair treatment agents and textile treatment agents for headwear products may be collectively referred to as "treatment agents." "Good feel in wet hair or headwear fibers" means that the hair or headwear fibers have a good feel when the treatment agent is applied, dried, washed, and rinsed. As used herein, "volatile" means having a boiling point of 260°C or lower at normal pressure.

[0012] [Hair treatment agent or fiber treatment agent for headwear products] The hair treatment agent or fiber treatment agent for headwear products of the present invention comprises the following components (A) to (C): (A)(R 1 )3SiO 1 / 2 (R 1R represents a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. 1 These may be the same or different from each other.) M units and SiO are represented by these units. 4 / 2 A film-forming polymer containing Q units represented by (B) Film-forming polymers other than the component (A) (C) High molecular weight organopolysiloxanes with a degree of polymerization of 2,200 to 20,000 It contains [a certain substance] and has a water content of 10% by mass or less. The hair treatment agent or fiber treatment agent for headwear products of the present invention, having the above configuration, can impart a good feel to hair or fibers for headwear products in both dry and wet states, exhibit excellent volume-granting and heat-setting properties during styling, and can suppress the decrease in effects such as volume-granting and heat-setting properties even after washing.

[0013] The reason why the hair treatment agent or fiber treatment agent for headwear products of the present invention produces the above effects is not clear, but it is presumed to be as follows. The hair treatment agent or fiber treatment agent for headwear products of the present invention, by containing components (A) and (B), can form a hydrophobic film on the surface of hair or fibers for headwear products when applied. This film-forming effect is expected to improve the ability to impart volume during styling and the heat-setting properties. Since component (A) contains the aforementioned Q units, it can form a hard film. However, because this film is hard and brittle, it is easily peeled off by friction, washing, etc., and may also lead to a decrease in the feel of hair or fibers for headwear products. However, by including component (B) together, the hair treatment agent or fiber treatment agent for headwear products of the present invention can form a more flexible film than a film made of component (A) alone. Therefore, it is believed that a decrease in the feel of hair or fibers for headwear products, as well as a decrease in volume and heat-setting properties after washing, can be suppressed. Component (C) is thought to be present in large quantities on the surface side (air side) of the hydrophobic film that is formed, thereby playing a protective role on the surface of the hair or the fibers used in hair accessories, and is also thought to contribute to improved feel, volume during styling, and durability. In particular, component (C), having a predetermined degree of polymerization, is thought to suppress the occurrence of stickiness on hair or fibers used in hair accessories in both dry and wet states, thereby providing a good feel and improving the ability to provide volume during styling. Furthermore, if the water content in the hair treatment agent or fiber treatment agent for headwear products of the present invention is 10% by mass or less, the drying speed is improved, and when the hair treatment agent or fiber treatment agent for headwear products is applied to hair or fibers for headwear products, a film having a phase-separated structure in which component (C) is unevenly distributed on the surface side (air side) is efficiently formed, which is thought to make the effects of the present invention more readily apparent. However, the mechanism of action of the present invention is not limited to the above.

[0014] <Fibers for hair or headwear products> The treatment agent of the present invention is applicable to hair or fibers for headwear products. Among these, hair is more preferred. The fibers used for headwear products to which the treatment agent of the present invention is applied may be either naturally derived fibers or synthetic fibers, but naturally derived fibers are preferred. Naturally derived fibers refer to fibers collected from natural animals and plants, or fibers artificially manufactured using polymers or oligomers such as proteins and polysaccharides derived from collagen, casein, soybeans, peanuts, corn, silk waste, silk protein (e.g., silk fibroin), etc. Of these, animal hair, human hair, or fibers artificially manufactured using polymers or oligomers such as proteins and polysaccharides derived from keratin, collagen, casein, soybeans, peanuts, corn, silk waste, silk protein (e.g., silk fibroin), etc. are preferred, regenerated protein fibers made from proteins derived from keratin, collagen, casein, soybean protein, peanut protein, corn protein, silk protein (e.g., silk fibroin), etc. are more preferred, regenerated protein fibers such as regenerated collagen fibers made from collagen, and regenerated silk fibers made from silk fibroin are even more preferred, and regenerated collagen fibers are even more preferred. Regenerated collagen fibers can be manufactured using known technologies. The composition of regenerated collagen fibers does not need to be 100% collagen; natural polymers, synthetic polymers, additives, etc., may be included for quality improvement. Furthermore, regenerated collagen fibers may be post-processed or post-treated. Filaments are preferred as the form of regenerated collagen fibers. Filaments are generally removed from bobbins or boxes. Alternatively, filaments that have emerged from the drying process during the manufacturing of regenerated collagen fibers can be used directly.

[0015] Examples of synthetic fibers include fibers containing synthetic resin as the main component. From the viewpoint of ease of manufacturing the synthetic fiber and obtaining a texture similar to hair, the synthetic resin is preferably a thermoplastic resin, and more preferably one or more selected from the group consisting of polyester resin, polyamide resin, polyimide resin, polyamide-imide resin, vinyl chloride resin, polycarbonate resin, polyphenylene sulfide resin, and modacrylic resin (a copolymer of acrylonitrile and vinyl chloride). Here, "main component" means a component whose content in the synthetic fiber is preferably 50% by mass or more, more preferably 60% by mass or more, even 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 synthetic resin described above, the synthetic fiber may further contain various substances such as flame retardants, flame retardant enhancers, light or heat stabilizers, fluorescent agents, antioxidants, antistatic agents, and ultraviolet absorbers, to the extent that they do not impair the effects of the present invention.

[0016] Hair treatment agents or fiber treatment agents for headwear products include cleansing agents such as shampoos, as well as rinses, conditioning agents, treatment agents (including leave-in types), styling agents, hair dyes, hair growth agents, and the like. The hair treatment agent or fiber treatment agent for headwear products of the present invention is preferably used without rinsing after application to hair or fibers for headwear products, in order to obtain the effects of the invention, such as the feel of hair or fibers for headwear products in both dry and wet states, the ability to impart volume during styling, heat setting properties, and the ability to impart volume and heat setting properties after washing. Therefore, among the above, the treatment agent of the present invention is preferably a conditioning agent, a treatment agent, or a styling agent, and more preferably a styling agent. The following describes each component contained in the hair treatment agent or fiber treatment agent for headwear products of the present invention.

[0017] <Component (A): Film-forming polymer containing M units and Q units> The treatment agent of the present invention has as component (A), (R 1 )3SiO1 / 2 (R 1 R represents a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. 1 These may be the same or different from each other.) M units and SiO are represented by these units. 4 / 2 It contains a film-forming polymer containing Q units represented by . Component (A) contains the aforementioned Q units and therefore has a cross-linked structure within its molecule. This structure allows for the formation of a hard film, which is thought to provide volume during styling, heat setting properties, and sustained volume and heat setting properties after washing. Component (A) does not contain polyorganosiloxane cured powder, which is infusible, has no softening point, and is generally insoluble in organic solvents.

[0018] In the above formula, R 1 This is a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. The carbon number of the hydrocarbon group is 1 or more, preferably 9 or less, more preferably 6 or less, and even more preferably 4 or less, from the viewpoint of film-forming ability, ability to impart volume during styling, heat setting ability, and improved duration of volume impartment and heat setting effect after washing the hair. The hydrocarbon group may be either an aliphatic group or an aromatic group, such as an alkyl group, alkenyl group, aryl group, or aralkyl group. The alkyl group and alkenyl group may be either linear or branched. Among the above, alkyl groups, aryl groups, or aralkyl groups are preferred as the hydrocarbon group from the viewpoint of availability and stability.

[0019] Examples of the alkyl groups include methyl, ethyl, n-propyl, isopropyl, various butyl groups, various pentyl groups, various hexyl groups, various heptyl groups, various octyl groups, various nonyl groups, various decyl groups, various undecyl groups, and various dodecyl groups. The term "various" refers to linear or branched hydrocarbon groups, and for example, "various butyl groups" includes "n-butyl group, sec-butyl group, isobutyl group, and tert-butyl group." Examples of the aryl group include phenyl group, toluyl group, dimethylphenyl group, naphthyl group, etc., with phenyl group being preferred. Examples of the aralkyl group include benzyl group, phenylethyl group, phenylpropyl group, and phenylbutyl group, with phenylpropyl group being preferred.

[0020] R 1 If the hydrocarbon group is fluorine-substituted, it is sufficient that at least one hydrogen atom in the hydrocarbon group is replaced by a fluorine atom.

[0021] R 1 From the viewpoint of improving film-forming properties, volume-granting properties during styling, heat-setting properties, and the sustained effect of volume-granting and heat-setting properties after washing, it is preferable that the alkyl group has 1 to 12 carbon atoms, which may be fluorine-substituted, an aryl group having 6 to 12 carbon atoms, or an aralkyl group having 7 to 12 carbon atoms; it is more preferable that the alkyl group has 1 to 8 carbon atoms, which may be fluorine-substituted, or a phenyl group; and it is even more preferable that the alkyl group has 1 to 6 carbon atoms, which may be fluorine-substituted, or a phenyl group. The fluorine-substituted alkyl group is preferably a group represented by CF3-R- (wherein R is an alkylene group having 2 to 7 carbon atoms, preferably 2 to 5 carbon atoms). R 1 It is more preferably a trifluoropropyl group, an alkyl group having 1 to 4 carbon atoms, or a phenyl group; more preferably a trifluoropropyl group, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, or an n-butyl group; more preferably a trifluoropropyl group, a methyl group, or an n-propyl group; and more preferably a methyl group.

[0022] Component (A) is further R 1 SiO 3 / 2 T units represented by (R 1 )2SiO 2 / 2 It may include one or more units selected from the group consisting of D units represented by R.1 This is the same as above. However, from the viewpoint of improving film-forming properties, volume-granting properties during styling, heat-setting properties, and the sustained effects of volume-granting properties and heat-setting properties after washing, it is preferable that the proportion of M units and Q units in the total number of units constituting component (A) be high. Specifically, the ratio of the total number of moles of M units and Q units to the total number of moles of M units, Q units, T units and D units in component (A) is preferably 50% or more, more preferably 70% or more, even more preferably 80% or more, and even more preferably 90% or more, and also 100% or less.

[0023] Component (A) may include trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, fluorine-modified alkyldimethylsiloxysilicate, or crosspolymers obtained by crosslinking these siloxysilicates with dimethiconol, etc., and one or more of these may be used. Examples of fluorine-modified alkyldimethylsiloxysilicate include trifluoroalkyldimethyltrimethylsiloxysilicate, such as trifluoropropyldimethyltrimethylsiloxysilicate, which has the INCI name "Trifluoropropyldimethyl / Trimethylsiloxysilicate". Examples of crosspolymers obtained by crosslinking siloxysilicates with dimethiconol, etc., may include those with the INCI name "(trimethylsiloxysilicate / dimethiconol) crosspolymer". In particular, from the viewpoint of improving film-forming properties, volume-granting properties during styling, heat-setting properties, and the sustained effect of volume-granting and heat-setting properties after washing, one or more selected from the group consisting of trimethylsiloxysilicate, trifluoropropyldimethyltrimethylsiloxysilicate, and (trimethylsiloxysilicate / dimethiconol) crosspolymer is preferred as component (A), one or more selected from the group consisting of trimethylsiloxysilicate and trifluoropropyldimethyltrimethylsiloxysilicate is more preferred, and trimethylsiloxysilicate is even more preferred.

[0024] Various types of trimethylsiloxysilicate are used, but the viscosity of a 50% by mass solution of the active ingredient trimethylsiloxysilicate dissolved in dimethicone KF-96L-2cs (manufactured by Shin-Etsu Chemical Co., Ltd.) is 10 mm². 2 It is preferable that it is 15 mm or more 2 It is more preferable that it be 20 mm or more / s. 2 It is even more preferable that it be 50 mm or more / s. 2 It is even more preferable that the viscosity is greater than or equal to / s. These viscosities were measured at 25°C using the same method as the viscosity of component (C) described later.

[0025] Among the components (A), commercially available products containing trimethylsiloxysilicate include KF-7312J (50% by mass - decamethylcyclopentasiloxane solution), KF-9021 (50% by mass - decamethylcyclopentasiloxane solution), X-21-5249 (50% by mass - decamethylcyclopentasiloxane solution), X-21-5595 (60% by mass - isododecane solution), and X-21-5616 (60% by mass - isododecane solution) (all manufactured by Shin-Etsu). Examples include SS4267 (35% by mass - dimethylpolysiloxane solution), SR1000, SS4230 (45% by mass - cyclopentasiloxane solution), SS4267 (35% by mass - dimethylpolysiloxane solution), Silsoft74 (75% by mass - isododecane solution) (all manufactured by Momentive Performance Materials), BY11-018 (30% by mass - cyclopentasiloxane solution), MQ-1600 Solid Resin (all manufactured by Dow Toray Industries, Inc.), and BELSIL TMS 803 (manufactured by Asahi Kasei Wacker Silicone Co., Ltd.). Examples of commercially available phenylpropyldimethylsiloxysilicate include SilShine 151 (manufactured by Momentive Performance Materials). Commercially available fluorine-modified alkyldimethylsiloxysilicate products include XS66-B8226 (50% by mass - cyclopentasiloxane solution), XS66-C1191, and XS66-B8636 (50% by mass - dimethicone solution) (all manufactured by Momentive Performance Materials), which have the INCI name "Trifluoropropyldimethyl / Trimethylsiloxysilicate". Furthermore, commercially available trimethylsiloxysilicate crosspolymers include DOWSIL FC-5002 IDD Resin Gum (40% by mass of isododecane solution of trimethylsiloxysilicate / dimethiconol crosspolymer) (manufactured by Dow Toray Corporation).

[0026] <Component (B): Film-forming polymer other than component (A)> Component (B) is a film-forming polymer other than component (A). Component (B) can be any film-forming polymer commonly used in cosmetics, but one that is solid at 25°C is preferred. Component (B) can be either a silicone-based film-forming polymer or a non-silicone-based film-forming polymer. As for the silicone-based film-forming polymer used as component (B), R 1 SiO 3 / 2 Includes T units represented by SiO 4 / 2 A silicone resin (R) that is substantially free of Q units represented by 1 The same applies as described above.) Examples include silicone polymers containing a polysiloxane portion and a portion consisting of non-silicone organic chains. Note that a silicone resin that substantially does not contain Q units means that the proportion of Q units in the silicone resin is less than 1 mol%.

[0027] R 1 SiO 3 / 2 Includes T units represented by SiO 4 / 2 A silicone resin (R) that is substantially free of Q units represented by 1The same applies as described above. Examples of polysilsesquioxanes include polymethylsilsesquioxane, polypropylsilsesquioxane, polyphenylsilsesquioxane, polymethylphenylsilsesquioxane, and fluorine-modified alkyldimethylpolysilsesquioxane, and one or more of these can be used. Examples of fluorine-modified alkyldimethylpolysilsesquioxane include the INCI name "(trifluoropropyldimethylsiloxy / trimethylsiloxy)silsesquioxane".

[0028] Examples of non-silicone film-forming polymers used as component (B) include non-silicone cationic polymers, non-silicone anionic polymers, non-silicone nonionic polymers, and non-silicone amphoteric polymers. These polymers are preferably hydrophobic polymers.

[0029] Examples of the cationic polymers mentioned above include vinylpyrrolidone-N,N-dimethylaminoethyl methacrylate copolymer diethyl sulfate (polyquaternium-11) (Gaffcut 734 (manufactured by Ashland Specialty Ingredients), HC Polymer (manufactured by Osaka Organic Chemical Industry Co., Ltd.)), vinylpyrrolidone-dimethylaminopropyl methacrylamide-lauryldimethylaminopropyl methacrylamide copolymer (Stylase W-20 (manufactured by Ashland Specialty Ingredients)), polydimethylmethylene piperidinium chloride (Marcoat 100 (manufactured by Lubrizol)), dimethyldiallylammonium chloride-acrylamide copolymer (Marcoat 550 (manufactured by Lubrizol)), vinylpyrrolidone-dimethylaminoethyl methacrylate copolymer (Gaffcut 440 (manufactured by Ashland Specialty Ingredients)), and ammonium-modified hydroxyethylcellulose (Softcat SL-30 Examples include polymers (manufactured by Dow Chemical), acrylamide, DMAPA acrylate, and methoxyPEG methacrylate copolymer.

[0030] Examples of the above anionic polymers include (acrylates / diacetone acrylamide) copolymer (Plussize L-9540B, Plussize L-9600U, Plussize L-53, etc. (manufactured by Go-O Chemical Industry Co., Ltd.)), (acrylates / alkyl (C1-18) acrylate / alkyl (C1-8) acrylamide) copolymer (Plussize L-9909B, Plussize L-9900 (manufactured by Go-O Chemical Industry Co., Ltd.)), alkyl acrylate / octylacrylamide copolymer (Dermacryl 79 (manufactured by AkzoNobel)), vinyl acetate / crotonic acid / vinyl neodecanoate copolymer (RESYN Examples include 28-2930 (manufactured by AkzoNobel), acrylic acid / acrylamide / ethyl acrylate copolymers (Ultrahold 8, Ultrahold Strong (manufactured by BASF)), alkyl acrylate copolymers (Aniset NF-1000, Aniset HS-300, etc. (manufactured by Osaka Organic Chemical Industry Co., Ltd.)), isophorone diisocyanate / dimethylolpropionic acid / (polyoxyethylene / polyoxypropylene) 4,4'-isopropylidenediphenol copolymer (DynamX (manufactured by AkzoNobel)), etc.

[0031] Examples of the nonionic polymers mentioned above include (acrylates / methoxy PEG-23 methacrylate) copolymer (Plussize L-188K (manufactured by Go-O Chemical Industry Co., Ltd.)), (dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate) copolymer (Plussize L-2700, Plussize L-2714 (manufactured by Go-O Chemical Industry Co., Ltd.)), (hydroxyethyl acrylate / methoxyethyl acrylate) copolymer (Plussize L-2200 (manufactured by Go-O Chemical Industry Co., Ltd.)), polyvinylpyrrolidone (Rubiscol K17, Rubiscol K30, Rubiscol K90 (manufactured by BASF)), vinylpyrrolidone / vinyl acetate copolymer (Rubiscol VA73E, Rubiscol 37E (manufactured by BASF)), vinyl methyl ether / alkyl maleate copolymer (Gantlets A-425, Gantlets ES-225 (Ashland Specialty) Examples include vinylpyrrolidone / methacrylamide / vinylimidazole copolymer (Rubisset Clear (BASF)), polyvinylcaprolactam (Rubiscol Plus (BASF)), etc.

[0032] Examples of the above amphoteric polymers include acrylates / lauryl acrylate / stearyl acrylate / ethylamine oxide methacrylate copolymer (Diaformer Z651 (manufactured by Mitsubishi Chemical Corporation)), methacryloyloxyethyl carboxybetaine / alkyl methacrylate copolymer (Yukaformer M75, Yukaformer R205 (manufactured by Mitsubishi Chemical Corporation)), octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer (Anformer 28-4910 (manufactured by AkzoNobel)), and octylamide acrylate / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer (Anformer SH30 (manufactured by AkzoNobel)).

[0033] From the viewpoint of improving the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting after washing, component (B) is preferably a silicone-based film-forming polymer, and more preferably a silicone polymer comprising a polysiloxane portion and a portion consisting of non-silicone organic chains. The non-silicone organic monomer constituting the portion consisting of non-silicone organic chains can preferably be selected from radically polymerizable ethylenically unsaturated monomers, polycondensation-polymerizable monomers (e.g., those that produce polyamides, polyesters, or polyurethanes), and ring-opening monomers (e.g., oxazoline or caprolactone types) from the viewpoint of market availability.

[0034] As the silicone polymer used as component (B), which includes a polysiloxane portion and a portion consisting of a non-silicone organic chain, it is preferable that it contains one or more components selected from the group consisting of the following components (B-1) to (B-5). (B-1) Acrylic silicone polymer (B-2) Silicone-modified alicyclic structure-containing polymer (B-3) Silicone-modified pullulan (B-4) Polyurea / Urethane Silicone (B-5) Oxazoline-modified silicone

[0035] [Acrylic silicone polymer (B-1)] Examples of the acrylic silicone polymer component (B-1) include acrylic polymers having a carbosiloxane dendrimer structure in the side chain, acrylic-silicone graft copolymers, and graft copolymers or alternating block copolymers in which structural units consisting of polysiloxane groups and polymers of unsaturated monomers are linked via sulfide bonds. Examples of acrylic polymers having a carbosiloxane dendrimer structure in their side chains include silicone dendrimer-acrylic copolymers, which can be manufactured according to the manufacturing methods described in, for example, Japanese Patent Publication No. 11-1530 and Japanese Patent Publication No. 2000-63225.

[0036] As an acrylic polymer having a carbosiloxane dendrimer structure in its side chain, the INCI name "(Acrylates / Polytrimethylsiloxymethacrylate Copolymer)" is preferred. Commercially available products include DOWSIL FA 4001 CM Silicone Acrylate (30% by mass - decamethylcyclopentasiloxane solution), DOWSIL FA 4002 ID Silicone Acrylate (40% by mass - isododecane solution), DOWSIL FA 4003 DM Silicone Acrylate (40% by mass - dimethicone solution), and DOWSIL FA 4004 ID Silicone Acrylate (40% by mass - isododecane solution) (all manufactured by Dow-Toray Industries, Inc.).

[0037] Examples of acrylic-silicone graft copolymers include radical polymers of organopolysiloxane compounds having a radical polymerizable group at one end of the molecular chain and radical polymerizable monomers mainly composed of acrylates and / or methacrylates. Radical polymers of organopolysiloxane compounds having a radically polymerizable group at one end of the molecular chain and radically polymerizable monomers mainly composed of acrylate and / or methacrylate can be used, for example, those described in Japanese Patent Publication No. 2-25411, Japanese Patent Publication No. 2-132141, etc., or acrylic-silicone graft copolymers described in Japanese Patent Publication No. 3-162442, Japanese Patent Publication No. 2003-104825, etc.

[0038] As the acrylic-silicone graft copolymer, the INCI name "(Acrylates / Dimethicone) Copolymer" is preferred. Commercially available products include KP-545 (30% by mass decamethylcyclopentasiloxane solution), KP-549 (40% by mass methyltrimethicone solution), and KP-550 (40% by mass isododecane solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0039] Examples of graft-type copolymers or alternating block-type copolymers, in which structural units consisting of polysiloxane groups and polymers of unsaturated monomers are linked via sulfide bonds, include the graft-type copolymer or alternating block-type copolymer described in Japanese Patent Application Publication No. 6-92825.

[0040] In particular, from the viewpoint of improving film-forming properties, the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing, component (B-1) is preferably one or more selected from the group consisting of acrylic polymers and acrylic-silicone graft copolymers having a carbosiloxane dendrimer structure in the side chain, more preferably one or more selected from the group consisting of (acrylates / polytrimethylsiloxy methacrylate) copolymer and (acrylates / dimethicone) copolymer, and even more preferably (acrylates / dimethicone) copolymer.

[0041] [Silicone-modified alicyclic structure-containing polymer (B-2)] Examples of silicone-modified alicyclic structure-containing polymers include silicone-modified cyclic polyolefins, with silicone-modified polynorbornene represented by the following general formula (B-2-1) being a preferred example. [ka] (In the formula, R 2Each of these is an alkyl group having between 1 and 12 carbon atoms, and X is a group represented by the following formula (i). a1 is an integer between 1 and 3. b1 and c1 are the number of repeating units, each an integer of 1 or more. [ka] (In the formula, R 3 Each of these is an independent hydrocarbon group having between 1 and 12 carbon atoms, and d1 is an integer between 1 and 5. In the general formula (B-2-1), R 2 The group is preferably a methyl group, ethyl group, n-propyl group, butyl group, or pentyl group, with a methyl group being more preferred. X is a group represented by formula (i) above, where R 3 Each of these is independently a hydrocarbon group having between 1 and 12 carbon atoms. 3 X is preferably an alkyl group or phenyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and even more preferably a methyl group. d1 is an integer between 1 and 5, and from the viewpoint of versatility, d1=1 is preferred. That is, X is preferably a trimethylsiloxy group. a1 is an integer between 1 and 3, and may be a polymer in which repeating units of a1=2 and a1=3 are mixed. From the viewpoint of versatility, a1 is preferably 3. The ratio of b1 to c1 in the above general formula (B-2-1) is preferably b1 / c1 = 20 / 80 to 90 / 10 (mol / mol), more preferably 30 / 70 to 80 / 20 (mol / mol), and even more preferably 50 / 50 to 70 / 30 (mol / mol). The ratio of b1 to c1 is, 1 This can be determined by 1H-NMR measurement.

[0042] As the silicone-modified polynorbornene, the silicone-modified polynorbornene represented by the following formula (B-2-2) is more preferred. [ka] (In the formula, b1 and c1 are the same as above.)

[0043] Examples of silicone-modified polynorbornene represented by formula (B-2-2) include compounds denoted by the INCI name "(norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer (NORBORNENE / TRIS(TRIMETHYLSILOXY)SILYLNORBORNENE COPOLYMER)". Examples of commercially available silicone-modified polynorbornene include NBN-30-ID (an isododecane solution of norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer) (Shin-Etsu Chemical Co., Ltd.).

[0044] [Silicone-modified pullulan (B-3)] Examples of silicone-modified pullulans include pullulans having a silicone structure in their side chains. Specifically, silicone-modified pullulans in which at least some of the hydrogen atoms of the OH groups in the pullulan are replaced with a group represented by the following general formula (ii) are preferred. [ka] In the formula, R 4 R is a single bond or a divalent organic group. 2 X and a1 are the same as described above, and from the viewpoint of versatility, X is preferably a trimethylsiloxy group and a1 is preferably 3.

[0045] In general formula (ii), R 4 It is preferably a divalent organic group, more preferably a divalent group represented by the following general formula (iii) or (iv), and more preferably a divalent group represented by the following general formula (iv). [ka] In the formula, R 5The alkylene group has 1 to 10 carbon atoms, and examples include the methylene group, ethylene group, trimethylene group, propylene group, and butylene group. Among these, the ethylene group, trimethylene group, and propylene group are preferred, and the trimethylene group or propylene group are more preferred.

[0046] Examples of commercially available silicone-modified pullulans include TSPL-30-ID (isododecane solution of tri(trimethylsiloxy)silylpropylcarbamate pullulan) and TSPL-30-D5 (cyclopentasiloxane solution of tri(trimethylsiloxy)silylpropylcarbamate pullulan) (both manufactured by Shin-Etsu Chemical Co., Ltd.).

[0047] [Polyurea / Urethane Silicone (B-4)] Examples of polyurea / urethane silicone components (B-4) include polysiloxane / polyurea / polyurethane block polymers. For example, dimethylpolysiloxane / urea copolymer, whose INCI name is "polyurea dimethicone," is one such example. The polymer can be obtained by copolymerization of α,ω-aminosilicone and diisocyanate. Examples of commercially available polyurea / urethane silicones include Wacker-Belsil UD 60, Wacker-Belsil UD 80, Wacker-Belsil UD 140, and Wacker-Belsil UD 200 (all manufactured by Wacker).

[0048] [Oxazoline-modified silicone (B-5)] As component (B-5), the oxazoline-modified silicone, at least two silicon atoms of the organopolysiloxane segment constituting the main chain are connected via an alkylene group containing a heteroatom, as shown in the general formula (B-5-1): [ka] (In the formula, R 6(where n represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group having 7 to 22 carbon atoms, or an aryl group having 6 to 22 carbon atoms, and n is 2 or 3.) Examples include organopolysiloxanes, which are formed by the binding of poly(N-acylalkyleneimine) segments consisting of repeating units represented by .

[0049] The poly(N-acylalkyleneimine) segment can be bonded to at least two silicon atoms constituting the organopolysiloxane segment via alkylene groups containing heteroatoms. It is preferable that the group is bonded to one or more silicon atoms excluding both ends via the alkylene group, and more preferably that it is bonded to two or more silicon atoms excluding both ends via the alkylene group.

[0050] Alkylene groups containing heteroatoms function as linking groups in poly(N-acylalkyleneimine) segments. Examples of such alkylene groups include those containing 1 to 3 nitrogen, oxygen, or sulfur atoms and having 2 to 20 carbon atoms.

[0051] R in general formula (B-5-1) 6 Examples of alkyl groups having 1 to 22 carbon atoms include linear, branched, or cyclic alkyl groups having 1 to 22 carbon atoms. Specifically, examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, pentyl group, hexyl group, cyclohexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, octadecyl group, nonadecyl group, eicosyl group, docosyl group, etc. Among these, alkyl groups having 1 to 10 carbon atoms are preferred, and alkyl groups having 1 to 6 carbon atoms are more preferred. R in general formula (B-5-1) 6In this context, examples of aralkyl groups having 7 to 22 carbon atoms include benzyl groups, phenethyl groups, trityl groups, naphthylmethyl groups, and anthracenylmethyl groups. Among these, aralkyl groups having 7 to 14 carbon atoms are preferred from the viewpoint of imparting volume to hair or hair accessory fibers, and aralkyl groups having 7 to 10 carbon atoms are more preferred. R in general formula (B-5-1) 6 In this context, examples of aryl groups having 6 to 22 carbon atoms include phenyl, tolyl, xylyl, naphthyl, biphenyl, anthryl, and phenanthryl groups. Among these, aryl groups having 6 to 14 carbon atoms are preferred from the viewpoint of imparting volume to hair or hair accessory fibers, and aryl groups having 6 to 12 carbon atoms are more preferred.

[0052] Among the above, R in general formula (B-5-1) 6 The alkyl group is preferably one to 22 carbon atoms, more preferably one to 10 carbon atoms, even more preferably one to 6 carbon atoms, and even more preferably one to 3 carbon atoms.

[0053] Examples of oxazoline-modified silicones, which are component (B-5), include poly(N-formylethyleneimine)organosiloxane, poly(N-acetylethyleneimine)organosiloxane, and poly(N-propionylethyleneimine)organosiloxane, and one or more of these can be used. Among these, polymers designated by the INCI name "polysilicone-9" are preferably used.

[0054] Component (B) may be one or more types. Among the above, from the viewpoint of improving film-forming properties, the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing, it is preferable that component (B) includes one or more selected from the group consisting of components (B-1) to (B-5), more preferably one or more selected from the group consisting of acrylic silicone polymer as component (B-1) and oxazoline-modified silicone as component (B-5), and even more preferably acrylic silicone polymer as component (B-1).

[0055] More specifically, from the viewpoint of improving film-forming properties, the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing, component (B) preferably contains one or more selected from the group consisting of (acrylates / polytrimethylsiloxy methacrylate) copolymer, (acrylates / dimethicone) copolymer, and oxazoline-modified silicone, more preferably contains one or more selected from the group consisting of (acrylates / dimethicone) copolymer and oxazoline-modified silicone, and even more preferably contains (acrylates / dimethicone) copolymer. The total content of components (B-1) and (B-5) in component (B) is preferably 50% by mass or more, more preferably 70% by mass or more, even more preferably 80% by mass or more, and still more preferably 90% by mass or more, and 100% by mass or less, from the viewpoint of improving film-forming properties, the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of imparting volume and heat setting properties after washing the hair.

[0056] <Ingredient (C): High molecular weight organopolysiloxane> The treatment agent of the present invention contains a high molecular weight organopolysiloxane with a degree of polymerization of 2,200 to 20,000 as component (C). The degree of polymerization of component (C) is preferably 2,200 or more, more preferably 2,600 or more, more preferably 2,900 or more, and still more preferably 3,200 or more, from the viewpoint of improving the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, and the ability to impart volume and heat-set after washing. From the viewpoint of availability, it is preferably 20,000 or less, more preferably 10,000 or less, more preferably 4,500 or less, still more preferably 4,000 or less, and still more preferably 3,900 or less. Furthermore, the degree of polymerization of component (C) is 2,200 or more and 20,000 or less, preferably 2,600 or more and 10,000 or less, more preferably 2,600 or more and 4,500 or less, still more preferably 2,900 or more and 4,000 or less, and still more preferably 3,200 or more and 3,900 or less.

[0057] More specifically, component (C) is preferably an organopolysiloxane represented by the following general formula (1). [ka] (In the formula, R 11 Each of these independently represents a hydrocarbon group having 1 to 6 carbon atoms, and R 12 Each of these independently represents a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, or a hydrocarbon group having 1 to 6 carbon atoms. 13 R represents a hydrocarbon group with 1 to 6 carbon atoms, or a primary to tertiary amino group-containing group. m represents the degree of polymerization and is a number between 2,200 and 20,000. m R 13 They may be the same or different.

[0058] In general formula (1), R 11 The hydrocarbon group in this compound may be either an aliphatic group or an aromatic group, such as an alkyl group, an alkenyl group, or a phenyl group. The alkyl group and alkenyl group may be either linear or branched. Among the above, R 11Preferably, it is an alkyl group or phenyl group having 1 to 6 carbon atoms, more preferably an alkyl group or phenyl group having 1 to 3 carbon atoms, even more preferably a methyl group or a phenyl group, and even more preferably a methyl group.

[0059] In general formula (1), R 12 Each of these independently represents a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, or a hydrocarbon group having 1 to 6 carbon atoms. R 12 Examples of alkoxy groups in this context include methoxy, ethoxy, propoxy, and butoxy groups. R 12 The hydrocarbon group in R 11 It is the same as, preferably an alkyl group or phenyl group having 1 to 6 carbon atoms, more preferably an alkyl group or phenyl group having 1 to 3 carbon atoms, even more preferably a methyl group or phenyl group, and even more preferably a methyl group. R 12 From the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, and the ability to impart volume and maintain heat setting after washing, the group is preferably a hydroxyl group, an alkyl group having 1 to 6 carbon atoms, or a phenyl group; more preferably a hydroxyl group, an alkyl group having 1 to 3 carbon atoms, or a phenyl group; even more preferably a hydroxyl group, a methyl group, or a phenyl group; and even more preferably a methyl group.

[0060] In general formula (1), R 13 This indicates a hydrocarbon group having 1 to 6 carbon atoms, or a primary to tertiary amino group-containing group. R 13 The hydrocarbon group in R 11 It is the same as, preferably an alkyl group or phenyl group having 1 to 6 carbon atoms, more preferably an alkyl group or phenyl group having 1 to 3 carbon atoms, even more preferably a methyl group or phenyl group, and even more preferably a methyl group. R 13In this context, primary to tertiary amino group-containing groups (hereinafter also simply referred to as "amino group-containing groups") are -N(R 14 )2, -NR 14 (CH2) p N(R 14 )2, or -NR 14 (CH2) p N(R 15 )CO-R 16 It is preferable that the group is represented by . Here, R 14 R represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms, preferably a hydrogen atom, a methyl group, or an ethyl group. 15 R represents a monovalent hydrocarbon group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group. 16 represents a monovalent hydrocarbon group having 1 to 4 carbon atoms. p represents a number between 2 and 6, preferably between 2 and 4. R 13 The preferred amino group-containing group in is -(CH2)3-NH2, -(CH2)3-N(CH3)2, -(CH2)3-NH-(CH2)2-NH2, or -(CH2)2-NH-(CH2)2-N(CH3)2, and more preferably -(CH2)3-NH2.

[0061] R 13 From the viewpoint of improving the feel of hair or hair accessory fibers in dry and wet states, the ability to impart volume during styling, and the ability to impart volume and maintain heat setting after washing, the hydrocarbon group having 1 to 6 carbon atoms is preferred, more preferably an alkyl group or phenyl group having 1 to 6 carbon atoms is preferred, even more preferably an alkyl group or phenyl group having 1 to 3 carbon atoms is preferred, even more preferably a methyl group or phenyl group is preferred, and even more preferably a methyl group is preferred.

[0062] In the general formula (1), m represents the degree of polymerization and is a number from 2,200 or more to 20,000 or less. From the viewpoints of the feel of hair or fibers for a hair ornament product in the dry and wet states, the imparting property of volume feeling during styling, and the improvement of the lasting effect of the imparting property of volume feeling and heat setting property after hair washing, m is preferably 2,600 or more, more preferably 2,900 or more, still more preferably 3,200 or more. From the viewpoint of availability, it is preferably 10,000 or less, more preferably 4,500 or less, still more preferably 4,000 or less, and even more preferably 3,900 or less. And m in the general formula (1) is from 2,200 or more to 20,000 or less, preferably from 2,600 or more to 10,000 or less, more preferably from 2,600 or more to 4,500 or less, still more preferably from 2,900 or more to 4,000 or less, and even more preferably from 3,200 or more to 3,900 or less.

[0063] From the viewpoints of the feel of hair or fibers for a hair ornament product in the dry and wet states, the imparting property of volume feeling during styling, and the improvement of the lasting effect of the imparting property of volume feeling and heat setting property after hair washing, the viscosity of the component (C) is preferably 1 million mm 2 / s or more, more preferably 3 million mm 2 / s or more, still more preferably 5 million mm 2 / s or more, even more preferably 10 million mm 2 / s or more. From the viewpoint of availability, it is preferably 125 million mm 2 / s or less, more preferably 50 million mm 2 / s or less, still more preferably 40 million mm 2 / s or less. And the viscosity of the component (C) is preferably 1 million mm 2 / s or more and 125 million mm 2 / s or less, more preferably 3 million mm 2 / s or more and 125 million mm 2 / s or less, still more preferably 5 million mm 2 / s or more and 50 million mm 2 / s or less, even more preferably 10 million mm 2 / s or more and 40 million mm 2 / s or less.

[0064] The viscosity values ​​above were measured at 25°C in accordance with JIS Z8803:2011 "Method for Measuring the Viscosity of Liquids". For example, an appropriate viscometer can be selected from a capillary viscometer, a falling ball viscometer, a rotary viscometer, or a vibrating viscometer for measurement. Furthermore, if the viscosity exceeds the normal measurement range of the viscometer, it can be determined from a diluted solution of component (C) using the method described below. Prepare a toluene solution of component (C) at a concentration of 1 g / 100 mL, and determine the specific viscosity ηsp (25°C) using the following formula (1). Next, substitute this into Huggins' relation shown in formula (2) to determine the intrinsic viscosity [η]. Furthermore, substitute [η] into A. Kolorlov's formula shown in formula (3) to determine the molecular weight M. Finally, substitute M into A.J. Barry's formula shown in formula (4) to determine the viscosity η of component (C) (see, for example, Shin-Etsu Chemical Co., Ltd., Silicone Oil KF-96 Performance Test Results 4.2). ηsp = (η / η0) - 1 (1) (where η0 is the viscosity of toluene, and η is the viscosity of the solution) ηsp = [η] + K'[η] 2 (2) (However, the K':Huggins constant used is that described in Nakamuta, Nichika, 77588

[1956] .) [η] = 0.215 × 10 -4 M 0.65 (3) logη = 1.00 + 0.0123M 0.5 (4)

[0065] A commercially available dimethylpolysiloxane used as component (C) is X-25-9074 (viscosity 30 million mm²). 2 / s) (manufactured by Shin-Etsu Chemical Co., Ltd.), Silsoft B3020 (viscosity 20 million mm) 2 Examples include / s (manufactured by Momentive Performance Materials).

[0066] Component (C) is preferably one or more selected from the group consisting of dimethylpolysiloxane, methylphenylpolysiloxane, aminopropylmethylpolysiloxane, and dimethiconol, with a degree of polymerization within the aforementioned range, from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, and the ability to impart volume and maintain heat setting after washing, and more preferably dimethylpolysiloxane with a degree of polymerization within the aforementioned range.

[0067] <Content> The content of component (A) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, even more preferably 1.5% by mass or more, and even more preferably 2.0% by mass or more, from the viewpoint of improving film-forming properties, volume-granting properties during styling, heat-setting properties, and the sustained effect of volume-granting properties and heat-setting properties after washing the hair. Furthermore, from the viewpoint of improving the feel of hair or fibers for headwear products in both dry and wet states, it is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, and even more preferably 5.0% by mass or less.

[0068] The content of component (B) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, and even more preferably 1.5% by mass or more, and also preferably 30% by mass or less, more preferably 25% by mass or less, even more preferably 20% by mass or less, and even more preferably 15% by mass or less. Furthermore, the content of component (B) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.1% by mass or more and 30% by mass or less, more preferably 0.5% by mass or more and 25% by mass or less, even more preferably 1.0% by mass or more and 20% by mass or less, and even more preferably 1.5% by mass or more and 15% by mass or less.

[0069] The total content of components (A) and (B) in the hair treatment agent or fiber treatment agent for headwear products is preferably 1% by mass or more, more preferably 2% by mass or more, even more preferably 3% by mass or more, and even more preferably 4% by mass or more, from the viewpoint of improving film-forming properties, volume-granting properties during styling, heat-setting properties, and the sustained effect of volume-granting properties and heat-setting properties after washing. Furthermore, from the viewpoint of improving the feel of hair or fibers for headwear products in both dry and wet states, and improving the sustained effect of volume-granting properties and heat-setting properties after washing, the total content is preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 20% by mass or less, and even more preferably 15% by mass or less. Furthermore, the total content of component (A) and component (B) in the hair treatment agent or fiber treatment agent for headwear products is preferably 1% by mass or more and 50% by mass or less, more preferably 2% by mass or more and 40% by mass or less, even more preferably 2% by mass or more and 30% by mass or less, even more preferably 2% by mass or more and 20% by mass or less, even more preferably 3% by mass or more and 15% by mass or less, and even more preferably 4% by mass or more and 15% by mass or less.

[0070] Furthermore, the mass ratio of the content of component (A) to the total content of component (B) in the hair treatment agent or fiber treatment agent for headwear products [(A) / {(A)+(B)}] is preferably 0.05 or higher, more preferably 0.10 or higher, even more preferably 0.15 or higher, and even more preferably 0.20 or higher, from the viewpoint of improving film-forming properties, the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing. Furthermore, from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, and the sustained effect of volume and heat setting properties after washing, it is preferably 0.98 or lower, more preferably 0.90 or lower, even more preferably 0.80 or lower, and even more preferably 0.60 or lower. Furthermore, the mass ratio of the content of component (A) to the total content of component (B) in the hair treatment agent or fiber treatment agent for headwear products [(A) / {(A)+(B)}] is preferably 0.05 or more and 0.98 or less, more preferably 0.10 or more and 0.90 or less, even more preferably 0.15 or more and 0.80 or less, and even more preferably 0.20 or more and 0.60 or less.

[0071] The content of component (C) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.05% by mass or more, and even more preferably 0.10% by mass or more, from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, and the ability to impart volume and heat-set after washing. Furthermore, from the viewpoint of suppressing stickiness and maintaining the feel of hair or fibers for headwear products in dry and wet states, it is preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less. Furthermore, the content of component (C) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.01% by mass or more and 20% by mass or less, more preferably 0.02% by mass or more and 10% by mass or less, even more preferably 0.05% by mass or more and 5.0% by mass or less, and even more preferably 0.10% by mass or more and 3.0% by mass or less.

[0072] Furthermore, the mass ratio of the content of component (C) to the total content of components (A) and (B) in the hair treatment agent or fiber treatment agent for headwear products [(C) / {(A)+(B)}] is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, and even more preferably 0.2 or more, from the viewpoint of improving the feel of hair or fibers for headwear products in both dry and wet states. Furthermore, from the viewpoint of improving the ability to impart volume after washing and the sustained effect of heat setting, it is preferably 3 or less, more preferably 2 or less, even more preferably 0.5 or less, and even more preferably 0.3 or less. And the mass ratio of the content of component (C) to the total content of components (A) and (B) in the hair treatment agent or fiber treatment agent for headwear products [(C) / {(A)+(B)}] is preferably 0.01 or more and 3 or less, more preferably 0.05 or more and 2 or less, even more preferably 0.1 or more and 0.5 or less, and even more preferably 0.2 or more and 0.3 or less.

[0073] <Component (D): Volatile solvent> The present invention preferably further contains a volatile solvent as component (D) from the viewpoints of dissolving or dispersing components (A) to (C), improving the drying rate when the hair treatment agent or fiber treatment agent for hair products is applied to hair or fibers for hair products, efficiently forming a film having a phase separation structure in which component (C) is unevenly distributed on the surface side (air side), suppressing stickiness and improving the feel of hair or fibers for hair products in both dry and wet states, and adjusting the viscosity to one that is easy to apply to hair or fibers for hair products. Examples of volatile solvents include alcohol-based solvents, ether-based solvents, ketone-based solvents, ester-based solvents, hydrocarbon-based solvents, and silicone-based solvents, which can be appropriately selected depending on the dosage form.

[0074] Examples of alcohol-based solvents used as component (D) include ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, and benzyl alcohol. Examples of ether-based solvents include diethyl ether and tetrahydrofuran. Examples of ketone solvents include acetone and methyl ethyl ketone. Examples of ester solvents include methyl acetate, ethyl acetate, butyl acetate, and isobutyl acetate. Examples of hydrocarbon solvents include pentane, isopentane, hexane, isohexane, heptane, isoheptane, decane, isodecane, dodecane, isododecane, tridecane, isotridecane, tetradecane, isotetradecane, and light liquid isoparaffins (mainly composed of isoparaffins with 8 to 16 carbon atoms). Furthermore, as a silicone-based solvent, cyclic silicone has a viscosity of 10 mm at 25°C. 2 Dimethylpolysiloxane with a viscosity of 20 mm² or less, alkyl trimethicones such as methyl trimethicone, and a viscosity of 20 mm² at 25°C. 2 Examples include methylphenylpolysiloxanes with a viscosity of / s or less. Component (D) may be one or more of the above.

[0075] From the viewpoint of solubility or dispersibility of components (A) to (C), improvement of drying speed, and improvement of the feel of hair or hair accessory fibers in dry and wet states, component (D) preferably contains one or more selected from the group consisting of alcohol-based solvents, hydrocarbon-based solvents, and silicone-based solvents, such as ethanol, pentane, isopentane, hexane, isohexane, heptane, isoheptane, decane, isodecane, dodecane, isododecane, tridecane, isotridecane, tetradecane, isotetradecane, and light liquid isoparaffin, with a viscosity of 10 mm at 25°C. 2 Dimethylpolysiloxane and methyl trimethicone with a viscosity of 20 mm² at 25°C or less. 2 Preferably, it contains one or more methylphenylpolysiloxanes selected from the group consisting of methylphenylpolysiloxanes with a viscosity of 5 mm at 25°C. 2It is more preferable to include one or more selected from the group consisting of dimethylpolysiloxane, methyl trimethicone, isodecane, isododecane, isotetradecane, and light liquid isoparaffin with a viscosity of 1 / s or less, even more preferable to include one or more selected from the group consisting of ethanol, isodecane, isododecane, isotetradecane, and light liquid isoparaffin, and even more preferable to include isododecane.

[0076] When a hair treatment agent or a fiber treatment agent for headwear products contains component (D), the content of component (D) in the hair treatment agent or fiber treatment agent for headwear products is preferably 40% by mass or more, more preferably 50% by mass or more, and even more preferably 60% by mass or more, from the viewpoint of solubility or dispersibility of components (A) to (C), improvement of drying speed, and improvement of the feel of hair or fibers for headwear products in dry and wet states, and preferably 98% by mass or less, more preferably 97% by mass or less, from the viewpoint of adjusting the viscosity of the hair treatment agent or fiber treatment agent for headwear products to be easily applied to hair or fibers for headwear products. Furthermore, the content of component (D) in the hair treatment agent or fiber treatment agent for headwear products is preferably 40% by mass or more and 98% by mass or less, more preferably 50% by mass or more and 97% by mass or less, and even more preferably 60% by mass or more and 97% by mass or less.

[0077] <Ingredient (E): Cationic surfactant> The hair treatment agent or fiber treatment agent for headwear products of the present invention may further contain a cationic surfactant as component (E) from the viewpoint of imparting desired performance to the treatment agent, and in particular from the viewpoint of further improving the feel of wet hair or fibers for headwear products. Cationic surfactants can be appropriately selected depending on the form of the hair treatment agent or fiber treatment agent for headwear products, the desired performance, etc. In particular, when the hair treatment agent or fiber treatment agent for headwear products is a rinse, conditioning agent, treatment agent, or styling agent, it is preferable that the hair treatment agent or fiber treatment agent for headwear products contains component (E) from the viewpoint of further improving the feel of wet hair or fibers for headwear products.

[0078] Cationic surfactants include alkyltrimethylammonium salts such as cetyltrimethylammonium chloride [cetrimonium chloride], stearyltrimethylammonium chloride [steartrimonium chloride], and behenyltrimethylammonium chloride [behentrimonium chloride]; alkoxyalkyltrimethylammonium salts such as stearoxypropyltrimethylammonium chloride [stearoxypropyltrimonium chloride], stearoxyethyltrimethylammonium chloride, and stearoxyhydroxypropyltrimethylammonium chloride; dialkyldimethylammonium salts such as distearyldimethylammonium chloride; and palmitamidopropyl Examples include alkylamide alkyltrimethylammonium salts such as methylammonium chloride (palmitamidopropyltrimonium chloride); alkyldimethylamines and their salts such as N,N-dimethylbehenylamine and N,N-dimethylstearylamine; alkoxyalkyldimethylamines and their salts such as N,N-dimethyl-3-hexadecyloxypropylamine and N,N-dimethyl-3-octadecyloxypropylamine; and alkylamide alkyldimethylamines and their salts such as N-[3-(dimethylamino)propyl]docosanamide and N-[3-(dimethylamino)propyl]stearamide. One of these can be used alone or in combination of two or more.

[0079] Among the above, from the viewpoint of further improving the feel of wet hair or fibers for headwear products, the cationic surfactant is preferably one or more selected from the group consisting of alkyltrimethylammonium salt, alkoxyalkyltrimethylammonium salt, alkylamidealkyltrimethylammonium salt, alkyldimethylamine and its salt, alkoxyalkyldimethylamine and its salt, and alkylamidealkyldimethylamine and its salt; more preferably one or more selected from the group consisting of alkyltrimethylammonium salt, alkoxyalkyltrimethylammonium salt, and alkoxyalkyldimethylamine and its salt; even more preferably one or more selected from the group consisting of alkyltrimethylammonium salt and alkoxyalkyltrimethylammonium salt; and even more preferably one or more selected from the group consisting of stearyltrimethylammonium chloride [steartrimonium chloride], behenyltrimethylammonium chloride [behentrimonium chloride], and stearoxypropyltrimethylammonium chloride [stearoxypropyltrimonium chloride].

[0080] When a hair treatment agent or a fiber treatment agent for headwear products contains component (E), the content of component (E) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.05% by mass or more, more preferably 0.10% by mass or more, even more preferably 0.20% by mass or more, and also preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 5.0% by mass or less, and even more preferably 2.0% by mass or less. Furthermore, the content of component (E) in the hair treatment agent or fiber treatment agent for headwear products is preferably 0.05% by mass or more and 15% by mass or less, more preferably 0.10% by mass or more and 10% by mass or less, even more preferably 0.10% by mass or more and 5.0% by mass or less, and even more preferably 0.20% by mass or more and 2.0% by mass or less.

[0081] In addition to the components mentioned above, the treatment agent of the present invention may contain components commonly used in hair treatment agents or fiber treatment agents for headwear products, such as antioxidants, ultraviolet absorbers, fragrances, preservatives, thickeners, texture enhancers, cationic polymers, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, moisturizers, cooling agents, etc., other than components (A), (B), (C), (D), and (E).

[0082] The hair treatment agent or fiber treatment agent for headwear products of the present invention improves the drying speed after application to hair or fibers for headwear products, efficiently forms a film having a phase-separated structure in which component (C) is predominantly located on the surface side (air side), and improves washability. In this respect, the water content is 10% by mass or less, preferably 5% by mass or less, more preferably less than 5% by mass, and even more preferably less than 2% by mass.

[0083] Hair treatment agents or fiber treatment agents for headwear products preferably contain a low amount of solid oil from the viewpoint of improving the feel of hair in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing. Solid oil is an oil that is solid at 25°C and includes paraffinic waxes such as solid paraffin, polyolefin waxes such as polyethylene wax, and beeswax. Its content is preferably less than 50% by mass, more preferably less than 20% by mass, even more preferably less than 10% by mass, even more preferably less than 5% by mass, and even more preferably less than 1% by mass in the treatment agent.

[0084] In hair treatment agents or fiber treatment agents for headwear products, it is preferable to have a low content of non-volatile liquid oils other than components (C) and (E) from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of imparting volume and heat setting properties after washing.Non-volatile liquid oils are oils that have a boiling point above 260°C at normal pressure and are liquid at 25°C. Examples include non-volatile liquid silicones other than components (C) and (E); triglycerides such as glyceryl trioctanoate, avocado oil, olive oil, sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, castor oil, cottonseed oil, and mink oil; fatty acids such as oleic acid and isostearic acid; isopropyl myristate, butyl myristate, isopropyl palmitate, and olein. Ethyl phosphate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, decyl myristate, decyl oleate, oleyl oleate, isostearyl laurate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, octyl palmitate, isocetyl palmitate, isostearyl palmitate, isodecyl oleate, isopropyl isostearate, 2-ethylhexanoate Examples include ester oils such as ethyl 2-ethylhexanoate, propylene glycol dicaprate, propylene glycol dioleate, glyceryl tri-2-ethylhexanoate, caprylic / capric triglyceride, isononyl isononanoate, diisopropyl sebacate, propylene glycol isostearate, ethylhexyl paramethoxycinnamate, ethoxyethyl paramethoxycinnamate, isopropyl paramethoxycinnamate / diisopropyl cinnamic acid ester mixture, methylbis(trimethylsiloxy)silylisopentyl trimethoxycinnamate, amyl paradimethylaminobenzoate, ethylhexyl paradimethylaminobenzoate, ethylene glycol salicylate, ethylhexyl salicylate, benzyl salicylate, homomentyl salicylate, octocrylene, dimethyldiethylbenzalmalonate, etc.; and branched or unsaturated higher alcohols such as 2-octyldodecanol, isostearyl alcohol, and oleyl alcohol. The content of the treatment agent is preferably less than 50% by mass, more preferably less than 40% by mass, even more preferably less than 30% by mass, even more preferably less than 20% by mass, and even more preferably less than 10% by mass.

[0085] Hair treatment agents or fiber treatment agents for headwear products preferably contain a low amount of volatile cyclic silicones, such as decamethylcyclopentasiloxane, from the viewpoint of improving the drying speed after application to hair or fibers for headwear products. This is because volatile cyclic silicones have a slower evaporation time than other volatile solvents, and tend to result in a longer drying time after application to hair or fibers for headwear products. The content of volatile cyclic silicones in the treatment agent is preferably less than 5% by mass, more preferably less than 2% by mass, even more preferably less than 1% by mass, even more preferably less than 0.5% by mass, even more preferably less than 0.1% by mass, and even more preferably 0% by mass.

[0086] Hair treatment agents or fiber treatment agents for headwear products preferably contain a low amount of polyhydric alcohol from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume and heat setting properties after washing. Examples of such polyhydric alcohols include polyhydric alcohols having a boiling point of more than 260°C at atmospheric pressure, such as propylene glycol and glycerin. The content of such polyhydric alcohols in the treatment agent is preferably less than 5% by mass, more preferably less than 2% by mass, even more preferably less than 1% by mass, even more preferably less than 0.5% by mass, and even more preferably less than 0.1% by mass.

[0087] In hair treatment agents or fiber treatment agents for headwear products, it is preferable that the content of oil gelling agents other than components (A), (B), and (C) is low, from the viewpoint of improving the feel of hair or fibers for headwear products in dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of volume imparting and heat setting properties after washing. Examples of oil gelling agents other than components (A), (B), and (C) include dextrin palmitate and 12-hydroxystearic acid. The content of these agents is preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 2% by mass, even more preferably less than 1% by mass, and even more preferably less than 0.5% by mass in the treatment agent.

[0088] <Dosage Form, etc.> The dosage form of the treatment agent of the present invention is not particularly limited and can be in the form of liquid (oil, lotion, etc.), paste, milk, cream, gel, wax, aerosol foam, non-aerosol foam, mist, spray, etc., depending on the product form. Preferably, it is an oil, milk, cream, gel, mist, or spray. More preferably, it is an oil, mist, or spray. Furthermore, the treatment agent of the present invention has a water content of 10% by mass or less and is more preferably a non-aqueous hair treatment agent or a fiber treatment agent for headwear products. Here, a non-aqueous hair treatment agent or a fiber treatment agent for headwear products means a treatment agent with a water content of less than 1% by mass, preferably less than 0.5% by mass, and more preferably less than 0.1% by mass. The treatment agent of the present invention can be manufactured according to conventional methods.

[0089] The preferred viscosity of the treatment agent of the present invention is, from the viewpoint of usability, preferably 1.0 mPa·s or more, more preferably 1.5 mPa·s or more, and even more preferably 1.7 mPa·s or more. From the viewpoint of applicability, it is preferably 1,000 mPa·s or less, more preferably 500 mPa·s or less, even more preferably 250 mPa·s or less, even more preferably 100 mPa·s or less, and even more preferably 20 mPa·s or less. The viscosity of the treatment agent is preferably 1.0 mPa·s or more and 1,000 mPa·s or less, more preferably 1.5 mPa·s or more and 500 mPa·s or less, even more preferably 1.7 mPa·s or more and 250 mPa·s or less, even more preferably 1.7 mPa·s or more and 100 mPa·s or less, and even more preferably 1.7 mPa·s or more and 20 mPa·s or less. The viscosity of the above-mentioned treatment agent is measured at 30°C using a B-type viscometer, and can be measured specifically by the method described in the examples.

[0090] [Method for processing hair or fibers for headwear products] The present invention provides a method for treating hair or hair accessories fibers (hereinafter also referred to as "the treatment method of the present invention"), which comprises the steps of applying the treatment agent to hair or hair accessories fibers and then drying them. If the treatment agent of the present invention is not a uniform system, it is preferable to temporarily make it compatible or disperse it before applying it to hair or hair accessory fibers, from the viewpoint of uniform application and improving the uniformity of the structure of the formed film. Temporary compatibility or dispersion can be achieved by thermodynamic means such as heating, physical means such as mechanically applying shear stress, or chemical means such as adding a compatible solvent. From the viewpoint of user convenience, it is preferable to uniformly make it compatible or disperse it by physical means such as stirring or shaking.

[0091] In the treatment method of the present invention, the amount of treatment agent applied to hair or fibers for headwear products is not particularly limited, but is usually in the range of 0.005 to 1 g per gram of hair or fibers for headwear products.

[0092] The present invention relates to a treatment method comprising the steps of applying the treatment agent to hair or fibers for headwear products and then drying them. The treatment agent can be applied to hair or fibers for headwear products in either a dry or wet state, but from the viewpoint of improving the feel of the hair or fibers for headwear products in both dry and wet states, the ability to impart volume during styling, heat setting properties, and the sustained effect of the ability to impart volume and heat setting properties after washing, it is preferable to apply the treatment agent to dry hair or fibers for headwear products, then dry them, and use them without rinsing. Methods for applying the aforementioned treatment agent include coating, spraying, and casting, and can be appropriately selected depending on the dosage form of the treatment agent. When applying the treatment agent to hair or fibers for headwear products, it may be applied by hand or using an application tool such as a brush. After applying the treatment agent, the hair or fibers for headwear products may be dried naturally or using a device such as a hood or hair dryer. When using such a device, it is preferable to dry at a temperature of 40°C to 220°C from the viewpoint of minimizing heat damage to the hair or fibers for headwear products. More preferably, drying is done using a hood or hair dryer, with a drying temperature of preferably 40°C to 110°C, and more preferably 50°C to 90°C. Here, temperature refers to the temperature of the hair surface or the surface of the fibers for headwear products, which can be measured, for example, by an infrared radiation thermometer. The drying time is not particularly limited as long as a film is substantially formed on the surface of the hair or the fibers used for the headwear product, and can be adjusted as appropriate depending on the quantity and quality of the hair or fibers used for the headwear product, but can be in the range of, for example, 10 seconds to 120 minutes. After drying, you may brush the hair or hair accessory fibers to separate them.

[0093] Hair or fibers for headwear products treated by the treatment method of the present invention have a good feel when dry. Furthermore, the feel of the hair or fibers for headwear products when they are washed and rinsed after the treatment agent is applied and they are dried (the feel of the hair or fibers for headwear products when wet) is also good.

[0094] When styling hair or hair accessory fibers treated by the processing method of the present invention, a step of shaping the hair or hair accessory fibers while heating them (heat setting step) can be performed from the viewpoint of improving the shaping effect and durability of the hair or hair accessory fibers. Methods for heating hair or fibers for headwear products include using devices such as hair dryers, hair irons, and hot curlers. When heating hair or fibers for headwear products, the surface temperature of the hair or fibers for headwear products is preferably 40°C or higher, more preferably 50°C or higher, even more preferably 60°C or higher, even more preferably 70°C or higher, and even more preferably 75°C or higher, from the viewpoint of improving the shaping effect and durability of the hair or fibers for headwear products, and obtaining a natural finish. Furthermore, from the viewpoint of obtaining a natural finish and suppressing thermal damage to the hair or fibers for headwear products, the surface temperature of the hair or fibers for headwear products when heating them is preferably 220°C or lower, more preferably 200°C or lower, even more preferably 190°C or lower, and even more preferably 150°C or lower. The heating time for the hair or fibers for headwear products should be within a range that allows the desired shape to be achieved. Here, the surface temperature of the hair or fibers for headwear products can be measured, for example, by an infrared radiation thermometer.

[0095] With regard to the embodiments described above, the present invention discloses the following. <1> The following ingredients (A) to (C): (A)(R 1 )3SiO 1 / 2 (R 1 R represents a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. 1 These may be the same or different from each other.) M units and SiO are represented by these units. 4 / 2 A film-forming polymer containing Q units represented by (B) Film-forming polymers other than the component (A) (C) High molecular weight organopolysiloxanes with a degree of polymerization of 2,200 to 20,000 A hair treatment agent or a fiber treatment agent for headwear products, containing and having a water content of 10% by mass or less. <2> The M unit, the Q unit, and R in the aforementioned component (A) 1 SiO 3 / 2 T units and (R 1 )2SiO 2 / 2 The D unit (R 1The same applies as described above. The ratio of the total number of moles of M units and Q units to the total number of moles of ( ) is preferably 50% or more, more preferably 70% or more, even more preferably 80% or more, and even more preferably 90% or more, and 100% or less. <1> The treatment agent described above. <3> The aforementioned component (A) is one or more selected from the group consisting of trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, fluorine-modified alkyldimethylsiloxysilicate, and crosspolymers obtained by crosslinking these siloxysilicates with dimethiconol, preferably one or more selected from the group consisting of trimethylsiloxysilicate, trifluoropropyldimethyltrimethylsiloxysilicate, and (trimethylsiloxysilicate / dimethiconol) crosspolymer, more preferably one or more selected from the group consisting of trimethylsiloxysilicate and trifluoropropyldimethyltrimethylsiloxysilicate, and even more preferably trimethylsiloxysilicate. <1> or <2> The treatment agent described above. <4> The viscosity of a 50% by mass solution of the trimethylsiloxysilicate, which is the active ingredient, dissolved in dimethicone KF-96L-2cs, at 25°C is preferably 10 mm². 2 / s or more, more preferably 15mm 2 / s or more, more preferably 20mm 2 / s or more, more preferably 50mm 2 It is greater than or equal to / s. <1> ~ <3> The treatment agent described in any one of the following: <5> The above component (B) is preferably a silicone-based film-forming polymer, and more preferably R 1 SiO 3 / 2 Includes T units represented by SiO 4 / 2 A silicone resin (R) that is substantially free of Q units represented by 1The above is the same as above.) and one or more selected from the group consisting of a silicone polymer comprising a polysiloxane portion and a portion consisting of a non-silicone organic chain, more preferably a silicone polymer comprising a polysiloxane portion and a portion consisting of a non-silicone organic chain, and even more preferably comprising one or more selected from the group consisting of the following components (B-1) to (B-5). <1> ~ <4> The treatment agent described in any one of the following: (B-1) Acrylic silicone polymer (B-2) Silicone-modified alicyclic structure-containing polymer (B-3) Silicone-modified pullulan (B-4) Polyurea / Urethane Silicone (B-5) Oxazoline-modified silicone <6> The acrylic silicone polymer, which is component (B-1), is one or more selected from the group consisting of acrylic polymers having a carbosiloxane dendrimer structure in the side chain, acrylic-silicone graft copolymers, and graft copolymers or alternating block copolymers in which structural units consisting of polysiloxane groups and polymers of unsaturated monomers are linked via sulfide bonds. Preferably, it is one or more selected from the group consisting of acrylic polymers having a carbosiloxane dendrimer structure in the side chain and acrylic-silicone graft copolymers. More preferably, it is one or more selected from the group consisting of (acrylates / polytrimethylsiloxy methacrylate) copolymer and (acrylates / dimethicone) copolymer. Even more preferably, it is (acrylates / dimethicone) copolymer. <5> The treatment agent described above. <7> The component (B-2), a silicone-modified alicyclic structure-containing polymer, is a silicone-modified cyclic polyolefin, preferably a silicone-modified polynorbornene represented by the following general formula (B-2-1), and more preferably a silicone-modified polynorbornene represented by the following formula (B-2-2). <5> The treatment agent described above. [ka] (In the formula, R2 Each of these is an alkyl group having between 1 and 12 carbon atoms, and X is a group represented by the following formula (i). a1 is an integer between 1 and 3. b1 and c1 are the number of repeating units, each an integer of 1 or more. [ka] (In the formula, R 3 Each of these is an independent hydrocarbon group having between 1 and 12 carbon atoms, and d1 is an integer between 1 and 5. [ka] (In the formula, b1 and c1 are the same as above.) <8> The component (B-3) is a silicone-modified pullulan having a silicone structure in its side chain, preferably a silicone-modified pullulan in which at least some of the hydrogen atoms of the OH group in the pullulan are substituted with a group represented by the following general formula (ii). <5> The treatment agent described above. [ka] In the formula, R 4 R is a single bond or a divalent organic group. 2 X and a1 are the same as described above, where X is preferably a trimethylsiloxy group and a1 is preferably 3. <9> The aforementioned component (B-4), polyurea / urethane silicone, is preferably a polysiloxane / polyurea / polyurethane blocker polymer. <5> The treatment agent described above. <10> The oxazoline-modified silicone, which is component (B-5), has at least two silicon atoms of the organopolysiloxane segments constituting the main chain connected via alkylene groups containing heteroatoms, as shown in the following general formula (B-5-1): [ka] (In the formula, R6 (where n represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group having 7 to 22 carbon atoms, or an aryl group having 6 to 22 carbon atoms, and n is 2 or 3.) This is an organopolysiloxane formed by the bonding of poly(N-acylalkyleneimine) segments consisting of repeating units represented by , preferably one or more selected from the group consisting of poly(N-formylethyleneimine)organosiloxane, poly(N-acetylethyleneimine)organosiloxane, and poly(N-propionylethyleneimine)organosiloxane, and more preferably a polymer denoted by the INCI name "polysilicone-9". <5> The treatment agent described above.

[0096] <11> The aforementioned component (B) preferably comprises one or more selected from the group consisting of an acrylic silicone polymer which is component (B-1) and an oxazoline-modified silicone which is component (B-5), and more preferably comprises an acrylic silicone polymer which is component (B-1). <5> ~ <10> The treatment agent described in any one of the following: <12> The aforementioned component (B) preferably comprises one or more selected from the group consisting of (acrylates / polytrimethylsiloxy methacrylate) copolymer, (acrylates / dimethicone) copolymer, and oxazoline-modified silicone, more preferably comprises one or more selected from the group consisting of (acrylates / dimethicone) copolymer and oxazoline-modified silicone, and even more preferably comprises (acrylates / dimethicone) copolymer. <1> ~ <11> The treatment agent described in any one of the following: <13> The total content of component (B-1) and component (B-5) in component (B) is preferably 50% by mass or more, 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. <5> ~ <12> The treatment agent described in any one of the following: <14> The degree of polymerization of component (C) is preferably 2,600 to 10,000, more preferably 2,600 to 4,500, even more preferably 2,900 to 4,000, and even more preferably 3,200 to 3,900. <1> ~ <13> The treatment agent described in any one of the following: <15> The aforementioned component (C) is an organopolysiloxane represented by the following general formula (1). <1> ~ <14> The treatment agent described in any one of the following: [ka] (In the formula, R 11 Each of these independently represents a hydrocarbon group having 1 to 6 carbon atoms, and R 12 Each of these independently represents a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, or a hydrocarbon group having 1 to 6 carbon atoms. 13 R represents a hydrocarbon group with 1 to 6 carbon atoms, or a primary to tertiary amino group-containing group. m represents the degree of polymerization and is a number between 2,200 and 20,000. m R 13 They may be the same or different. <16> In general formula (1), m is preferably 2,600 to 10,000, more preferably 2,600 to 4,500, even more preferably 2,900 to 4,000, and even more preferably 3,200 to 3,900. <15> The treatment agent described above. <17> The viscosity of component (C) at 25°C is preferably 1 million mm³. 2 / s or more 125 million mm 2 / s or less, more preferably 3 million mm 2 / s or more 125 million mm 2 / s or less, more preferably 5 million mm 2 / s or more 50 million mm 2 / s or less, more preferably 10 million mm 2 / s or more 40 million mm 2 It is less than or equal to / s. <1> ~ <16> The treatment agent described in any one of the following: <18> The aforementioned component (C) is preferably one or more selected from the group consisting of dimethylpolysiloxane, methylphenylpolysiloxane, aminopropylmethylpolysiloxane, and dimethiconol, and more preferably dimethylpolysiloxane. <1> ~ <17> The treatment agent described in any one of the following: <19> The content of component (A) in the treatment agent is preferably 0.5% by mass or more and 30% by mass or less, more preferably 1.0% by mass or more and 20% by mass or less, even more preferably 1.5% by mass or more and 10% by mass or less, and even more preferably 2.0% by mass or more and 5.0% by mass or less. <1> ~ <18> The treatment agent described in any one of the following: <20> The content of component (B) in the treatment agent is preferably 0.1% by mass or more and 30% by mass or less, more preferably 0.5% by mass or more and 25% by mass or less, even more preferably 1.0% by mass or more and 20% by mass or less, and even more preferably 1.5% by mass or more and 15% by mass or less. <1> ~ <19> The treatment agent described in any one of the following:

[0097] <21> The total content of component (A) and component (B) in the treatment agent is preferably 1% by mass or more and 50% by mass or less, more preferably 2% by mass or more and 40% by mass or less, even more preferably 2% by mass or more and 30% by mass or less, even more preferably 2% by mass or more and 20% by mass or less, even more preferably 3% by mass or more and 15% by mass or less, and even more preferably 4% by mass or more and 15% by mass or less. <1> ~ <20> The treatment agent described in any one of the following: <22> The mass ratio of the content of component (A) to the total content of component (B) in the treatment agent [(A) / {(A)+(B)}] is preferably 0.05 or more and 0.98 or less, more preferably 0.10 or more and 0.90 or less, even more preferably 0.15 or more and 0.80 or less, and even more preferably 0.20 or more and 0.60 or less. <1> ~ <21> The treatment agent described in any one of the following: <23> The content of component (C) in the treatment agent is preferably 0.01% by mass or more and 20% by mass or less, more preferably 0.02% by mass or more and 10% by mass or less, even more preferably 0.05% by mass or more and 5.0% by mass or less, and even more preferably 0.10% by mass or more and 3.0% by mass or less. <1> ~ <22> The treatment agent described in any one of the following: <24> The mass ratio of the content of component (C) to the total content of component (A) and component (B) in the treatment agent [(C) / {(A)+(B)}] is preferably 0.01 or more and 3 or less, more preferably 0.05 or more and 2 or less, even more preferably 0.1 or more and 0.5 or less, and even more preferably 0.2 or more and 0.3 or less. <1> ~ <23> The treatment agent described in any one of the following: <25> The aforementioned treatment agent further contains a volatile solvent as component (D). <1> ~ <24> The treatment agent described in any one of the following: <26> The aforementioned component (D) is one or more selected from the group consisting of alcohol-based solvents, ether-based solvents, ketone-based solvents, ester-based solvents, hydrocarbon-based solvents, and silicone-based solvents. <25> The treatment agent described above. <27> The component (D) preferably comprises one or more selected from the group consisting of alcohol-based solvents, hydrocarbon-based solvents, and silicone-based solvents, and more preferably ethanol, pentane, isopentane, hexane, isohexane, heptane, isoheptane, decane, isodecane, dodecane, isododecane, tridecane, isotridecane, tetradecane, isotetradecane, and light liquid isoparaffin, with a viscosity of 10 mm at 25°C. 2 Dimethylpolysiloxane and methyl trimethicone with a viscosity of 20 mm² at 25°C or less. 2 It contains one or more methylphenylpolysiloxanes selected from the group consisting of methylphenylpolysiloxanes with a viscosity of 5 mm² or less at 25°C, and more preferably has a viscosity of 5 mm² at 25°C. 2It contains one or more selected from the group consisting of dimethylpolysiloxane, methyl trimethicone, isodecane, isododecane, isotetradecane, and light liquid isoparaffin, and more preferably contains one or more selected from the group consisting of ethanol, isodecane, isododecane, isotetradecane, and light liquid isoparaffin, and more preferably contains isododecane. <26> The treatment agent described above. <28> The content of component (D) in the processing agent is preferably 40% by mass or more and 98% by mass or less, more preferably 50% by mass or more and 97% by mass or less, and even more preferably 60% by mass or more and 97% by mass or less. <25> ~ <27> The treatment agent described in any one of the following: <29> The aforementioned treatment agent further contains a cationic surfactant as component (E). <1> ~ <28> The treatment agent described in any one of the following: <30> The component (E) is preferably one or more selected from the group consisting of alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, alkylamidealkyltrimethylammonium salts, alkyldimethylamine and its salts, alkoxyalkyldimethylamine and its salts, and alkylamidealkyldimethylamine and its salts; more preferably one or more selected from the group consisting of alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts, and alkoxyalkyldimethylamine and its salts; even more preferably one or more selected from the group consisting of alkyltrimethylammonium salts and alkoxyalkyltrimethylammonium salts; and even more preferably one or more selected from the group consisting of stearyltrimethylammonium chloride [steartrimonium chloride], behenyltrimethylammonium chloride [behentrimonium chloride], and stearoxypropyltrimethylammonium chloride [stearoxypropyltrimonium chloride]. <29> The treatment agent described above.

[0098] <31> The content of component (E) in the treatment agent is preferably 0.05% by mass or more and 15% by mass or less, more preferably 0.10% by mass or more and 10% by mass or less, even more preferably 0.10% by mass or more and 5.0% by mass or less, and even more preferably 0.20% by mass or more and 2.0% by mass or less. <29> or <30> The treatment agent described above. <32> The water content in the treatment agent is preferably 5% by mass or less, more preferably less than 5% by mass, and even more preferably less than 2% by mass. <1> ~ <31> The treatment agent described in any one of the following: <33> The viscosity of the treatment agent at 30°C is preferably 1.0 mPa·s or more and 1,000 mPa·s or less, more preferably 1.5 mPa·s or more and 500 mPa·s or less, even more preferably 1.7 mPa·s or more and 250 mPa·s or less, even more preferably 1.7 mPa·s or more and 100 mPa·s or less, and even more preferably 1.7 mPa·s or more and 20 mPa·s or less. <1> ~ <32> The treatment agent described in any one of the following: <34> The aforementioned treatment agent is used without rinsing after being applied to hair or fibers for headwear products. <1> ~ <33> The treatment agent described in any one of the following: <35> The aforementioned treatment agent is a cleansing agent, rinse, conditioning agent, treatment agent, styling agent, hair dye, or hair growth agent, preferably a conditioning agent, treatment agent, or styling agent, and more preferably a styling agent. <1> ~ <34> The treatment agent described in any one of the following: <36> <1> ~ <35> A method for treating hair or hair accessories, comprising the step of applying a treatment agent described in any one of the above to hair or hair accessories, and then drying. <37> The treatment agent is preferably applied to dry hair or fibers for headwear products, then dried, and used without rinsing. <36> The processing method described above. <38> <36> or <37> A method for styling hair or hair accessories, comprising the step of shaping hair or hair accessories that has been treated by the processing method described above while heating the hair or hair accessories. [Examples]

[0099] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of these examples. In these examples, various measurements and evaluations were performed by the following methods.

[0100] <Method for measuring the viscosity of hair treatment agents> The steady-state shear viscosity of the hair treatment agent was measured using a Type B viscometer (TVB-10, manufactured by Toki Sangyo Co., Ltd., rotor L / Adp) at 30°C and a rotor rotation speed of 60 r / m (1.5 r / m only in Example 6).

[0101] <Feel in a dry state> A 30cm long, 5g mass of straight hair from a Japanese woman, which had not undergone any chemical treatment, was prepared. This was washed with plain shampoo of the composition listed below, and then completely dried with a hair dryer (Tescom Electric Co., Ltd. "Nobby Professional Protect Ion Hair Dryer NIB3000 [SPEED mode]"). The hair treatment agents for each example were uniformly mixed and applied to the above-mentioned hair tray in a bath ratio of 1:0.2 (hair mass: hair treatment agent mass). Next, using the hair dryer, hot air was applied for 2 minutes from a distance of 15 cm while combing the hair, followed by 1 minute of cool air to dry it. The hair surface temperature was 55-60°C. The hair surface temperature was measured using an infrared radiation thermometer (SK-8940, manufactured by Sato Keiryoki Seisakusho Co., Ltd.) from a distance of 10 cm from the hair tray, with infrared rays irradiated perpendicularly to the hair. Three expert panelists performed a sensory evaluation of the feel of the dried hair tray according to the following criteria, and the total score of the three was calculated. (Evaluation Criteria) 5: I don't feel any stickiness at all. 4: Almost no stickiness. 3: It feels almost nonexistent. 2: It feels slightly sticky. 1: Feeling sticky

[0102] (Composition of plain shampoo) Ingredients (mass%) Sodium polyoxyethylene(2) lauryl ether sulfate (*1) 15.5 Lauric acid diethanolamide (*2) 1.5 Tetrasodium edetate salt 0.3 Sodium benzoate 1.43 Purified water remaining amount Total 100.0 *1: 57.4% by mass of Emal 227 (manufactured by Kao Corporation, active ingredient 27% by mass) *2: Aminone L-02 (manufactured by Kao Corporation)

[0103] <Feel in a wet state> A sample of hair was prepared using the same method as for the "feel in a dry state" evaluation. Each sample of hair treatment was applied to the sample, and then it was dried. After drying, the sample was washed with plain shampoo of the aforementioned composition and rinsed with 40°C warm water. Three expert panelists then performed a sensory evaluation of the feel of the sample according to the following criteria, and the total scores of the three panelists were calculated. Untreated sample was used after washing with plain shampoo of the aforementioned composition and rinsing with 40°C warm water. (Evaluation Criteria) 5: Smooth and easy to run your fingers through. 4: Slightly smooth, with almost no snagging when running your fingers through it. 3: It has the same smooth feel as an unprocessed traced surface. 2: I feel a slight resistance when I run my fingers through it. 1: It doesn't go through easily.

[0104] <Ability to add volume during styling> Using untreated, straight hair from a Caucasian woman, a density of 200 hairs / cm was applied to a 6cm x 6cm square area. 2A hairpiece was created with hair follicles 30 cm long and with a growth angle of 60°. This hairpiece was washed with plain shampoo of the aforementioned composition and then completely dried with a hair dryer (Tescom Electric Co., Ltd. "Nobby Professional Protect Ion Hair Dryer NIB3000 [SPEED mode]"). The hair treatment agents for each example were uniformly mixed and applied to the above-mentioned Tres in a bath ratio of 1:0.2 (hair mass: hair treatment agent mass). Next, using the hair dryer, warm air was applied from a distance of 15 cm from the Tres for 2 minutes while combing through it. The Tres was washed again with plain shampoo of the above composition, towel-dried, and then completely dried with the hair dryer with the ends facing downwards. Three expert panelists visually evaluated the volume of the dried Tres when placed upside down on a stand according to the following criteria, and the total score of the three was calculated. Untreated Tres was washed with plain shampoo of the above composition, towel-dried, and then completely dried with the hair dryer with the ends facing downwards, and then similarly placed upside down on a stand for comparison. The hair surface temperature during drying was 55-60°C. Hair surface temperature was measured using an infrared radiation thermometer (SK-8940, manufactured by Sato Keiryoki Seisakusho Co., Ltd.) at a distance of 10 cm from the hair trace, with infrared radiation directed perpendicularly to the hair. (Evaluation Criteria) 5: It has a substantial volume. 4: It has volume. 3: It has a slightly voluminous feel. 2: Lack of volume 1: Lacks volume (equivalent to an unprocessed trace)

[0105] <Heat-setting properties> A 30cm long, 1g mass of tres was prepared using untreated, curly hair from a Caucasian woman. This was washed with plain shampoo of the aforementioned composition and then air-dried. The hair treatment agents for each example were uniformly mixed and applied to the above-mentioned tray in a bath ratio of 1:0.2 (hair mass: hair treatment agent mass). Next, using the hair dryer, hot air was applied for 2 minutes from a distance of 15 cm from the tray while combing, and then cool air was applied for 1 minute to dry. In the post-drying traces, hair was clamped using a flat hair iron (Miki Electric Industry Co., Ltd. "One am Digital Hair Iron Straightener 38mm AHI-938", set to 180℃) and heat-styled by sliding it at a speed of 10cm / second. Three expert panelists visually evaluated the heat-styled traces according to the following criteria, and the total score of the three was calculated. The hair surface temperature during the ironing process was 130-140℃. The hair surface temperature was measured using an infrared radiation thermometer (Sato Keiryoki Seisakusho Co., Ltd. "SK-8940"), positioned 10cm from the hair trace, with infrared rays irradiated perpendicularly to the hair. (Evaluation Criteria) 5: The hair curls are straight, and the entire trace is cohesive. 4: The hair curls have straightened out, and the entire trace is almost complete. 3: The curls in the hair are straightened, but the traces are not well-defined. 2: The curls in the hair are almost straightened, but the traces are not cohesive. 1: The curls in my hair won't straighten out and it's not manageable.

[0106] <Hair wash resistance (ability to provide volume during styling after 7 washes)> The Tres hair, which had been treated and dried in the same manner as the "volume-granting ability during styling" evaluation described above, was washed with plain shampoo of the aforementioned composition, rinsed with 40°C warm water, and dried six times. After six washes and drying, the Tres hair was washed again with plain shampoo of the aforementioned composition, towel-dried, and then completely dried with the aforementioned hair dryer with the ends pointing downwards. The volume of the dried Tres hair was evaluated in the same manner as described above when it was placed upside down on a stand. Untreated Tres hair was washed with plain shampoo of the aforementioned composition, towel-dried, and then completely dried with the aforementioned hair dryer with the ends pointing downwards, and used for comparison.

[0107] <Hair washing resistance (heat styling resistance after 7 washes)> The hair samples, which had been treated and dried in the same manner as the "heat-setting properties" evaluation described above, were washed with plain shampoo of the aforementioned composition, rinsed with 40°C warm water, and dried seven times. After seven washes and drying, the hair samples were heat-styled in the same manner as described above, and their heat-setting properties were evaluated.

[0108] Examples 1-12, Comparative Examples 1-6 (Preparation and Evaluation of Hair Treatment Agents (Hair Styling Agents)) Each component shown in Tables 1-3 was mixed in the proportions indicated in the tables until uniform to prepare a hair treatment agent. The resulting hair treatment agent was then evaluated using the method described above. The results are shown in Tables 1-3. Note that the amounts (mass %) listed in Tables 1-3 all represent the amount of active ingredients.

[0109] [Table 1]

[0110] [Table 2]

[0111] [Table 3]

[0112] The ingredients listed in the table are as follows: *1: X-21-5595, manufactured by Shin-Etsu Chemical Co., Ltd., trimethylsiloxysilicate (active ingredient amount 60% by mass, solvent: isododecane) (viscosity at 25°C of a 50% by mass solution of the active ingredient dissolved in dimethicone KF-96L-2cs: 120 mm) 2 / s) *2: X-21-5616, manufactured by Shin-Etsu Chemical Co., Ltd., trimethylsiloxysilicate (active ingredient amount 60% by mass, solvent: isododecane) (viscosity at 25°C of a 50% by mass solution of the active ingredient dissolved in dimethicone KF-96L 2cs: 10 mm) 2 / s) *3: DOWSIL 680 ID Fluid, manufactured by Dow Toray Industries, Ltd., polypropylsilsesquioxane (active ingredient amount 75% by mass, solvent: isododecane) *4: KP-550, manufactured by Shin-Etsu Chemical Co., Ltd., (acrylates / dimethicone) copolymer (active ingredient amount 40% by mass, solvent: isododecane) *5: Polysilicone-9, manufactured by Kao Corporation *6: Silsoft B3020, manufactured by Momentive Performance Materials, high molecular weight dimethylpolysiloxane (active ingredient amount 20% by mass, solvent: isododecane), viscosity at 25°C: 20 million mmHg 2 / s(degree of polymerization 3,546) *7: KF-96H-100,000 cs, manufactured by Shin-Etsu Chemical Co., Ltd., high molecular weight dimethylpolysiloxane (active ingredient amount 100% by mass), viscosity at 25°C: 100,000 mmHg 2 / s(degree of polymerization 1,429) *8: Marcazole®, manufactured by Maruzen Petrochemical Co., Ltd., isododecane (active ingredient amount 100% by mass) *9: Cotamin E-80K, manufactured by Kao Corporation, stearoxypropyltrimonium chloride (active ingredient amount 45% by mass)

[0113] Furthermore, the degree of polymerization (P) of the above components *6-7 can be determined from the viscosity (η) by calculating the molecular weight (M) using formula (4) above, and the degree of polymerization (P) can be determined from the following formula (5), since the molecular weight of the basic unit of dimethylpolysiloxane is 74. P = M / 74 (5)

[0114] Tables 1-3 show that the hair treatment agent of the present invention exhibits excellent effects in terms of feel in both dry and wet states, volume-granting ability during styling, heat-setting ability, and volume-granting ability and heat-setting ability after seven washes. In contrast, the hair treatment agents of Comparative Example 1, which did not contain component (A), and Comparative Example 2, which did not contain component (B), showed a decrease in volume-granting ability during styling and volume-granting ability and heat-setting ability after seven washes. The hair treatment agent of Comparative Example 3, which did not contain component (C), showed a decrease in feel, volume-granting ability and heat-setting ability after seven washes, and the hair treatment agent of Comparative Example 4, which had a water content exceeding 10% by mass, showed a significant decrease in volume-granting ability and heat-setting ability after seven washes. In Comparative Example 5, where a film-forming polymer (T resin) that does not correspond to component (A) was used instead of component (A), and in Comparative Example 6, where an organopolysiloxane (C') that does not correspond to component (C) was used instead of component (C), both results showed inferior feel in a dry state and inferior volume-granting ability after seven shampoos.

[0115] The following shows an example of the formulation of the hair treatment agent (hair oil) of the present invention. Prescription Example 1-1 (Hair Oil) (mass%) (A) Trimethylsiloxysilicate (MQ resin, Hard) (*1) 2.5 (B)(Acrylates / Polytrimethylsiloxymethacrylate) copolymer (*2) 2.0 (C) High molecular weight dimethylpolysiloxane (20 million mm) 2 / s)(*3) 1.0 (D) Isododecane (*4) Remaining amount Total 100.0 (*1) X-21-5595, manufactured by Shin-Etsu Chemical Co., Ltd. (*2) DOWSIL FA 4004 ID Silicone Acrylate, manufactured by Dow Corning Toray Co., Ltd. (*3) SILSOFT B3020, manufactured by Momentive Performance Materials Inc. (*4) Marucozol R, manufactured by Maruzen Petrochemical Co., Ltd.

[0116] Formulation Example 1-2 (Hair Oil) (mass%) (A) Trimethylsiloxysilicic acid (MQ resin, Hard) (*1) 2.5 (B) (Acrylates / methacrylic acid polytrimethylsiloxy) copolymer (*2) 2.0 (C) High molecular weight dimethylpolysiloxane (20 million mm 2 / s) (*3) 1.0 (D) Isododecane (*4) balance (D) Ethanol 20.0 (E) Stearoxypropyltrimonium chloride (*5) 0.48 Total 100.0 (*1) X-21-5595, manufactured by Shin-Etsu Chemical Co., Ltd. (*2) DOWSIL FA 4004 ID Silicone Acrylate, manufactured by Dow Corning Toray Co., Ltd. (*3) SILSOFT B3020, manufactured by Momentive Performance Materials Inc. (*4) Marucozol R, manufactured by Maruzen Petrochemical Co., Ltd. (*5) Kotamine E-80K, manufactured by Kao Corporation

Industrial Applicability

[0117] According to the hair treatment agent or fiber treatment agent for a headgear product of the present invention, good touch can be imparted to hair or fibers for a headgear product in both dry and wet states, excellent volume imparting property and heat setting property are shown during styling, and reduction in volume imparting property and heat setting property after hair washing can be suppressed.

Claims

1. The following ingredients (A) to (C): (A) (R １ ) ３ SiO １／２ (R １ R represents a hydrocarbon group or hydroxyl group having 1 to 12 carbon atoms, which may be fluorine-substituted. １ These may be the same or different.) M units and SiO ４／２ A film-forming polymer containing Q units represented by (B) Film-forming polymers other than component (A) (C) Contains a high molecular weight organopolysiloxane with a degree of polymerization of 2,200 or more and 20,000 or less, and has a water content of 10% by mass or less. Hair treatment agent or fiber treatment agent for headwear products.

2. The hair treatment agent or fiber treatment agent for headwear products according to claim 1, wherein the total content of component (A) and component (B) in the treatment agent is 2% by mass or more.

3. A hair treatment agent or fiber treatment agent for headwear products as described in claim 1 or 2, wherein the degree of polymerization of component (C) is 2,600 or more and 4,500 or less.

4. The hair treatment agent or fiber treatment agent for headwear products according to claim 1 or 2, wherein the aforementioned component (B) comprises component (B-1): acrylic silicone polymer.

5. The hair treatment agent or fiber treatment agent for headwear products according to claim 1 or 2, wherein the treatment agent further contains a volatile solvent as component (D).

6. The hair treatment agent or fiber treatment agent for headwear products according to claim 1 or 2, wherein the treatment agent further contains a cationic surfactant as component (E).

7. The hair treatment agent or headwear fiber treatment agent according to claim 1 or 2, wherein the treatment agent is used without rinsing after being applied to hair or fibers for headwear products.

8. The hair treatment agent or fiber treatment agent for headwear products according to claim 1 or 2, wherein the treatment agent is a styling agent.

9. A method for treating hair or hair accessories fibers, comprising the steps of applying the treatment agent described in claim 1 or 2 to hair or hair accessories fibers, and then drying them.