JP2015124200A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair cosmetic which is easy to apply even to dry hair and to shape hair, has no sticky feeling, and is capable of rehairdressing.SOLUTION: A hair cosmetic has pH of 6 or less and comprises: (A) an oxyalkylene polymer represented by formula of -(AO)-, where A represents an alkylene group having the carbon number of 2 to 6, n represents a number of 50 to 12,000, n pieces of AO are composed of at least two kinds of alkyleneoxy groups, and the configuration may be either random or block; (B) a polymer which has the weight average molecular weight of 5,000 to 1,000,000 and the acid number of 300 to 780, and is composed of a constitutional unit (b1) of -(CHCRCOOH)- and a constitutional unit (b2) of -(CHCRCOOR)-, where Rand Reach represent H or CHand Rrepresents a C2-22 hydrocarbon group; and (C) a polymer obtained by crosslinking a polymer in which a monomer is one or more kinds selected from acrylic acid, alkyl acrylate, methacrylic acid and alkyl methacrylate, with one or more kinds of aryl ether of polyhydroxy compounds.

Description

  The present invention relates to a hair cosmetic containing a specific polymer.

  In recent hair styling agents, the amount of adhesive polymer and the set polymer that forms a strong film is increased in order to increase the hairstyle set retention, and the hairstyle is fixed by the adhesiveness of the polymer and the strong polymer film. Is common.

  Hairdressing agents that contain a large amount of adhesive polymer adhere to each other by the adhesiveness of the polymer to create and fix the hairstyle, and provide long-lasting hairstyle. In many cases, it was difficult to maintain the touch, which was a problem. On the other hand, hair styling agents that form a strong film can suppress stickiness, but because the hair style is maintained by the strong film, it is stiff and still insufficient in terms of giving the hair a natural feel. . Therefore, in addition to fixing and maintaining the hair in the desired shape, there is a need to keep the hair in a natural and non-sticky feel at the same time.

  In addition, the properties required of hairdressing agents are excellent sustainability in order to meet the new demands for easy hairstyling without getting wet with water or using additional hairstyling materials on the go. In addition, there is a strong demand for re-styling. That is, there is a demand for a hair styling material that can hold the hairstyle firmly while having a natural feel, and that can freely restyle the hair.

  For example, Patent Document 1 proposes a hair cosmetic that enables re-styling by using a specific set polymer. However, even with such a set polymer that can be re-haired, use of a polymer having a sufficient set holding force causes stickiness, while use of a non-sticky polymer provides a sufficient set holding force. Therefore, it is difficult to achieve both performances.

  In addition, oxyalkylene polymers (polyalkylene glycols) are used in hair cosmetics for the purpose of improving solubility, adjusting the viscosity of formulations, controlling feel, and improving the brittleness of film-forming polymers used in hair cosmetics. Used in preparations. As a hair cosmetic using this oxyalkylene polymer, for example, as in Patent Document 2, a solid polyalkylene glycol and a liquid polyalkylene glycol are used in combination, and an unspecified film-forming polymer is used in combination. By applying the same amount of polyalkylene glycol to the specific hair setting polymer as in Patent Document 3, a technique for imparting re-styling power and improving the setting power is used. There is known a technique for applying hair cosmetics that is excellent in setability and re-styling properties. However, as described in Patent Documents 2 and 3, when a non-volatile solvent is added to a hair cosmetic compounded with a set polymer, the setability and re-styling property of the hair cosmetic compounded with the set polymer can be obtained to some extent. On the other hand, stickiness sometimes occurred.

  On the other hand, there is also a technology that achieves both the elimination of stickiness of hair cosmetics that could not be achieved in the past and the improvement of setability and re-styling properties (see Patent Documents 4 and 5). This technology has high adhesiveness (hereinafter referred to as “self-adhesion”) between its own polymers, but has low adhesiveness to other objects (hereinafter referred to as “adhesion strength”). This is a technique for blending a polymer having a “self-adhesive adhesive property” into a hair cosmetic composition so that it has sufficient setability and re-styling properties and does not have a sticky or stiff feeling.

Special table 2001-507368 gazette JP 2010-275291 A JP 2010-126523 A JP 2010-168294 A International Publication No.2013 / 172475

  Since the structure of the polymer described in Patent Document 4 has a carbonate bond, solvolysis with water or ethanol occurs, and a formulation system containing these cannot secure long-term storage stability. In addition, in the hair cosmetic described in Patent Document 4, after application to the hair, high adhesiveness immediately appears and the hairs strongly adhere to each other, so that it was difficult to create the desired style.

  Further, the hair cosmetic disclosed in Patent Document 5 is a combination of an oxyalkylene polymer having a specific structure and an acidic polymer having a specific structure in an acid form, but the viscosity of the hair cosmetic is low. If it is low, it soaks into the hair immediately after application, and it is difficult to uniformly apply the amount required for the targeted portion from the root of the hair bundle to the tip of the hair. In particular, when applied to dry hair, it is more difficult to apply uniformly than to wet hair. Further, the composition may be thickened by increasing the molecular weight of the oxyalkylene polymer, but in this case, flaking may occur after application of hair.

  Therefore, the present invention is easy to spread even on dry hair, easy to shape when creating a style, and after hair styling has self-selective tackiness, so there is no stickiness, flaking does not occur, and re-hairing is possible The present invention relates to a natural hair cosmetic.

  Here, the present inventor has found that an oxyalkylene polymer having a specific structure and an acidic structure having a specific structure are used to further improve the ease of application and shaping to dry hair without causing flaking. When a thickener was added to the composition in which the polymer was combined in an acid form, the following problem occurred. That is, when a thickener is blended in the hair cosmetic, it is difficult for the cationic and nonionic thickeners and most of the anionic thickeners to sufficiently thicken the hair cosmetic. In addition, although some can be thickened, the self-selective tackiness of hair cosmetics is significantly reduced.

  The present inventor has found that only a specific one of the anionic type thickeners converts an oxyalkylene polymer having the specific structure and a (meth) acrylic acid polymer having a specific structure into an acid state (pH 6). It has been found that when blended into a hair cosmetic composition combined in the following state), an appropriate viscosity is obtained while exhibiting sufficient self-selective adhesiveness. Further, the present inventors have found that this hair cosmetic has sufficient setability and re-styling properties, suppresses stickiness and stiffness after styling, is easily applied to dry hair, and is excellent in touch.

  The present invention provides hair cosmetics containing the following components (A), (B) and (C) and having a pH of 6 or less.

(A) Oxyalkylene polymer represented by the following general formula (a1)-(AO) _n- (a1)
[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, and n represents a number of 50 to 12,000. However, n AOs consist of at least two types of alkyleneoxy groups, and the arrangement thereof may be either random polymerization or block polymerization. ]

(B) Consists of a structural unit represented by the following general formula (b1) and a structural unit represented by the following general formula (b2), with a weight average molecular weight of 5,000 to 1,000,000 and an acid value of 300 to 780. there polymers ^{_{- (CH 2 CR 1 COOH)}} - (b1)
− (CH ₂ CR ² COOR ³ ) − (b2)
[Wherein, R ¹ and R ² represent a hydrogen atom or a methyl group, and R ³ represents a hydrocarbon group having 2 to 22 carbon atoms. ]
(C) A polymer of one or more monomers selected from acrylic acid, alkyl acrylate, methacrylic acid and alkyl methacrylate is cross-linked with one or more allyl ethers of polyhydroxy compounds. Polymer

  Since the hair cosmetic composition of the present invention has an appropriate viscosity when applied to hair, it is easy to spread even on dry hair, and self-adhesiveness is expressed after drying. In addition, the fleshing is suppressed without any stickiness or stiffness after styling.

<Measurement method of weight average molecular weight>
In the present invention, the weight average molecular weights of the component (A), the component (B), and other polymers shall mean polystyrene equivalent values measured by gel permeation chromatography (GPC).

[(A): Oxyalkylene polymer]
In the general formula (a1), n is 50 or more from the viewpoint of obtaining sufficient self-selective adhesiveness after the hair cosmetic is dried, further 100 or more, further 150 or more, further 500 or more, and further 1,000 The above is preferable. Further, from the viewpoint of suppressing the spinnability of the hair cosmetic, exhibiting sufficient self-selective adhesiveness after drying, and further suppressing flaking on the hair, it is 12,000 or less, further 4,000 or less, Is preferably 3,000 or less, more preferably 2,500 or less.

In general formula (a1), A represents an alkylene group having 2 to 6 carbon atoms, n AOs represent a combination of at least two alkyleneoxy groups, and n AOs represent 2 to 4 carbon atoms. A combination of two or more alkyleneoxy groups is preferred. Further, AO is preferably a combination of an alkyleneoxy group having 2 and 3 carbon atoms, that is, a combination of an ethyleneoxy group and a propyleneoxy group. In addition, the arrangement form of two or more kinds of AO in (AO) _n may be either random polymerization or block polymerization.

  The component (A) oxyalkylene polymer has a propyleneoxy group ratio of 1% by mass or more in the whole component (A) from the viewpoint of developing self-selective adhesiveness after the hair cosmetic is dried. It is preferably 3% by mass or more, more preferably 5% by mass or more, and further preferably 10% by mass or more. In addition, from the viewpoint of obtaining good solubility and dispersibility in water and obtaining sufficient self-selective adhesion after drying the hair cosmetic, the proportion of propyleneoxy groups in the whole component (A) is 60% by mass. The content is preferably 50% by mass or less, more preferably 40% by mass or less, further 30% by mass or less, and further preferably 15% by mass or less.

  The weight average molecular weight of the oxyalkylene polymer of the component (A) is preferably 3,000 or more, more preferably 5,000 or more, further 7,000 or more, and further 1 from the viewpoint of obtaining sufficient self-selective adhesiveness after the hair cosmetic is dried. It is preferably 10,000 or more, more preferably 50,000 or more, and more preferably 100,000 or more. Moreover, from the viewpoint of suppressing the stringiness of hair cosmetics, exhibiting sufficient self-selective adhesiveness after drying, and further suppressing flaking on the hair, 600,000 or less, further 200,000 or less, Is preferably 150,000 or less.

  The production method of component (A) is not particularly limited, but it is preferably produced by ring-opening polymerization of a cyclic compound containing oxygen such as alkylene oxide, and either a base catalyst or an acid catalyst is used as the polymerization catalyst. May be.

  The content of the oxyalkylene polymer of the component (A) in the hair cosmetic composition of the present invention (the content in the stock solution in the case of an aerosol formula; the same applies hereinafter) is the hair styling property and the hair style retention property after drying the hair cosmetic product Is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, furthermore 0.1% by mass or more, further 0.5% by mass or more, and further preferably 1% by mass or more. Further, from the viewpoint of ensuring appropriate hair styling, 20% by mass or less, further 15% by mass or less, further 10% by mass or less, and further 5% by mass or less are preferable.

[(B): polymer having structural units (b1) and (b2)]
The polymer having the structural units (b1) and (b2) is mostly non-neutralized from the viewpoint that the hair cosmetic is excellent in setability and re-styling properties and does not feel stiff. It is necessary to exist in the acid form. The structural unit (b1) may be partially neutralized, but from the viewpoint of developing self-selective adhesiveness, the hair cosmetic needs to have a pH of 6 or less at 25 ° C. Hereinafter, it is preferably 5.8 or less, more preferably 5.5 or less, and further preferably 5.0 or less. On the other hand, from the viewpoint of achieving good self-selective adhesion after drying the hair cosmetic, the pH of the hair cosmetic is 2 or more at 25 ° C, more than 2.5, more than 3 or more, more than 3.5. It is preferable that In the polymer of component (B), the proportion of the equivalent of the base used for neutralization with respect to the carboxy group of the acid type before neutralization is 0 to 40%, further 0 to 20%, and more preferably 0 to 10% is preferred.

R ¹ and R ² in the structural units (b1) and (b2) are a hydrogen atom or a methyl group. R ³ is a hydrocarbon group having 2 to 22 carbon atoms, and the hydrocarbon group may be saturated or unsaturated, and may be linear or branched. The number of carbon atoms in R ³ is preferably 10 or more, more preferably 14 or more, from the viewpoint of making hair cosmetics less sticky, and the solubility and dispersibility of component (B) in water and lower alcohols are also preferred. From the viewpoint of achieving good, it is preferably 18 or less.

  Further, the acid value of component (B) is 300 or more, 350 or more, further 390 or more, and further 450 or more from the viewpoint of good self-selective adhesion after drying the hair cosmetic. It is preferable. In addition, the acid value of component (B) is 780 or less, but from the viewpoint of suppressing the film formed on the hair from becoming hard and having excellent re-styling properties, it is 700 or less, and further 630 Hereinafter, it is further preferably 580 or less, more preferably 500 or less.

  In addition, the mass ratio of the structural units (b1) / (b2) in the component (B) is 50/50 or more from the viewpoint of good self-selective adhesiveness after the hair cosmetic is dried. It is preferably 45 or more, more preferably 60/40 or more. In addition, the mass ratio of (b1) / (b2) is 100/0 or less, but from the viewpoint of suppressing the film formed on the hair from becoming hard and having excellent re-styling properties, 90 / It is preferably 10 or less, more preferably 80/20 or less, and further preferably 70/30 or less.

  The structural units (b1) and (b2) are typically derived from (meth) acrylic acid and (meth) acrylic acid ester, respectively, but in addition to this, (meth) acrylic acid and (meth) It includes a case where the structure of the structural units (b1) and (b2) is derived from a compound other than the acrylate ester and finally the structure of the component (B) is formed.

  Further, the polymer of the component (B) may have a structural unit other than (b1) and (b2), and such a structural unit is 30% by mass or less of the entire component (B), and Is preferably 20% by mass or less, more preferably 15% by mass or less. Examples of structural units other than (b1) and (b2) include compounds having a vinyl structure such as vinyl pyrrolidone, vinyl caprolactam, and vinyl acetate, alkyl acrylamides, N, N-dialkyl acrylamides, and hydroxy (meth) acrylates. Nonionic structural unit derived from a compound having a structure such as alkyl or methoxy PEG (meth) acrylate; Cationic structural unit derived from a compound such as N, N-dimethylaminopropylacrylamide, dimethylaminoethylacrylamide; Croton Anionic properties derived from monocarboxylic acids other than (meth) acrylic acid such as acids, dicarboxylic acids such as itaconic acid, maleic acid and fumaric acid, sulfonic acids such as vinyl sulfonic acid, and phosphoric acids such as acryloyloxyethyl phosphate Structural units of: carboxybetaine, sulfobetai And amphoteric structural units derived from compounds having a structure such as phosphobetaine.

  The method for producing this polymer is not particularly limited, but vinyl monomers capable of forming the above-mentioned structural units are converted into existing polymerization methods, for example, radical polymerization, living polymerization, living radical polymerization, functional group transfer polymerization (Group-Transfer polymerization), The polymer can be produced by ring-opening polymerization or the like. The structure of the polymer in this case is not particularly limited, and any of a random polymer, a block polymer, and a graft polymer may be used. From the viewpoint of exhibiting sufficient selective self-adhesion with the oxyethylene polymer, Polymers are preferred.

  The weight average molecular weight of the component (B) is 5,000 or more, preferably 7,000 or more, and more preferably 10,000 or more from the viewpoint of good self-selective adhesion after drying the hair cosmetic composition. Further, from the viewpoint of suppressing the film formed on the hair from becoming hard and having excellent re-hairing properties, it is 1 million or less, 100,000 or less, further 50,000 or less, and further 20,000 or less. Is preferred.

  The content of the component (B) in the hair cosmetic composition of the present invention is 0.01% by mass or more, more preferably 0.05% by mass or more, from the viewpoint of improving hair styling properties and hairstyle retention after the hair cosmetic product is dried. Further, it is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and further preferably 1% by mass or more. Further, from the viewpoint of having moderate hair styling, 20% by mass or less, further 15% by mass or less, further 10% by mass or less, and further 5% by mass or less are preferable.

  The mass ratio (A) / (B) of the component (A) to the component (B) in the hair cosmetic composition of the present invention is 30/30 from the viewpoint of good self-selective adhesiveness after the hair cosmetic composition is dried. 70 or more is preferable, 35/65 or more, and further 40/60 or more is preferable. Further, from the viewpoint of achieving good self-selective adhesion after drying the hair cosmetic, it is preferably 70/30 or less, more preferably 65/35 or less, and even more preferably 60/40 or less.

[(C): Specific crosslinkable polymer]
The hair cosmetic composition of the present invention contains a crosslinkable polymer of component (C) as a thickener. This polymer can thicken the hair cosmetic containing the components (A) and (B) without impairing the touch and without reducing the selective tackiness.

Component (C) is a polymer of one or more monomers selected from acrylic acid, alkyl acrylate, methacrylic acid and alkyl methacrylate, and is crosslinked with one or more allyl ethers of polyhydroxy compounds. It is a polymer obtained.
As the allyl ether of the polyhydroxy compound used for the crosslinking agent, those represented by the following formula are preferred.
R (OH) _x (O—CH ₂ —CH═CH ₂ ) _y
[Wherein, R is a linear, branched or cyclic hydrocarbon group having 4 to 12 carbon atoms and may contain an ether-bonded oxygen atom. x is an integer of 0 or more, y is an integer of 2 or more, and x + y is an integer of 10 or less. ]

  Among them, it is preferable that R is a polyhydroxy compound selected from trimethylolpropane, propylene glycol, pentaerythritol, and sucrose (sucrose) except all hydroxyl groups.

  The weight average molecular weight of the polymer of component (C) is preferably 500 or more, more preferably 5,000 or more, and further preferably 10,000 or more from the viewpoint of exerting a sufficient thickening effect. Further, from the viewpoint of moderate ease of spreading and shaping, it is preferably 50 million or less, more preferably 30 million or less, and further preferably 10 million or less.

  Specific examples of the polymer of component (C) include carbomers (Carbopol 981, Carbopol Ultrez10, Carbopol Ultrez30; polymers of acrylic acid crosslinked with pentaerythryl allyl ether, sucrose allyl ether or propylene allyl ether; Lurebrizol Co., Ltd., acrylates, which is a cross-linked copolymer of one or more selected from acrylic acid and methacrylic acid and alkyl acrylate having 10 to 30 carbon atoms with allyl ether of sucrose or allyl ether of pentaerythritol / C10-30 alkyl acrylate crosspolymer (Carbopol Ultrez20, Carbopol Ultrez21, Carbopol ETD2020; Lubrizol), methacrylic acid crosslinked with triacrylate of trimethylolpropane or diallyl ether of trimethylolpropane It includes over preparative crosspolymer 3.

  The content of the component (C) in the hair cosmetic of the present invention is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and further preferably 0.25% by mass or more from the viewpoint of sufficiently thickening the hair cosmetic. Further, from the viewpoint of appropriate spreading ease and shaping, it is preferably 5% by mass or less, more preferably 3% by mass or less, and further preferably 1.5% by mass or less.

  Further, the mass ratio (C) / (B) of the content of the component (C) to the content of the component (B) in the hair cosmetic composition of the present invention is a viewpoint of increasing the viscosity while maintaining self-selective adhesiveness. Therefore, it is preferably 2 or less, more preferably 1.5 or less, and further preferably 1.0 or less. Further, from the viewpoint of sufficiently thickening the hair cosmetic, it is preferably 0.01 or more, more preferably 0.05 or more, and further preferably 0.1 or more.

[Other set polymers]
In the hair cosmetic composition of the present invention, in addition to the components (A) and (B), another set polymer can be added as an optional component to further improve the set holding power. Examples of the polymer for the set include (methacryloyloxyethylcarboxybetaine / alkyl methacrylate) copolymers such as Yucaformer R205, Yukaformer 301 (Mitsubishi Chemical Co., Ltd.), RAM Resin (Osaka Organic Chemical Co., Ltd.); Diaformer Z-651 ( (Acrylates / Lauryl Acrylate / Stearyl Acrylate / Ethylamine Oxide Ethoxide) Copolymers such as Mitsubishi Chemical); Acrylic Acid / Acrylic Amide / Ethyl Acrylate such as Ultrahold 8 and Ultrahold Strong (BASF Japan) Copolymers; Alkyl acrylate / methacrylic acid / silicone copolymers such as Rubyflex Silk (BASF Japan); Polyurethanes such as Ruby Set PUR (BASF Japan); Polyvinylcaprolactam such as Rubiscor Plus (BASF Japan); A (Octylacrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymers such as Former 28-4910 and Unformer LV-71 (above Akzo Nobel); (Acrylic such as Anformer HC (Akzo Nobel) (Alkyl acid / octylacrylamide) copolymers; (vinyl acetate / crotonic acid / vinyl neodecanoate) copolymers such as resin 28-2930 (Akzo Nobel); polyurethane-14 AMP-acrylates copolymers such as Dynam X (Akzo Nobel) ; (PVP / Vinylcaprolactam / DMAPA acrylic acid) copolymer such as Aquaflex SF-40 (ASP Japan); (Isobutylene / ethylmaleimide / hydroxyethylmaleimide) such as Aquaflex FX-64 (ASP Japan) ) Copolymer; (Vinylpyrrolidone / DMAPA DMAPA) copolymer such as Irise CC-10 (IS Japan); PVP / VA E-735 (IS Japan) and Rubiscor VA64P (BASF Japan) (vinyl) Pyrrolidone / vinyl acetate) copolymer and the like.

  Among the above set polymers, acrylic acid / acrylic acid amide / ethyl acrylate copolymer, alkyl acrylate / methacrylic acid / silicone copolymer, polyurethane, (methacryloyloxyethylcarboxybetaine / alkyl methacrylate) copolymer, (octyl) Acrylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate) copolymer, acrylic acid / acrylic amide / ethyl alkyl copolymer, polyvinyl caprolactam, (alkyl acrylate / octyl acrylamide) copolymer are preferred, and acrylic acid / Acrylic amide / ethyl acrylate copolymer and polyurethane are preferred. Two or more kinds of the setting polymers other than these components (A) and (B) can be used in combination.

  In addition, the content is from the viewpoint of maintaining the feature of excellent self-selective adhesiveness in the hair cosmetic composition of the present invention, the total amount of components (A) and (B), and the mass ratio of the other set polymer [(A) + (B)] / [other set polymer] is preferably in the range of 60/40 or more, more preferably 70/30 or more, further 80/20 or more, and more preferably 90/10 or more. . Moreover, it is preferable to set it as the range used as 99/1 or less and 97/3 or less.

[Medium]
As the solvent (supporting medium), water, lower alcohols (ethanol, isopropanol, etc.), lactones, etc. can be used, and these can be used alone or in combination. Among these, water, ethanol, or a mixed system of water and ethanol is preferable from the viewpoints of versatility and ensuring the solubility and dispersibility of the cosmetic composition. Moreover, when water is contained in the solvent, the content of water is preferably 75% by mass or more, more preferably 80% by mass or more, and further 85% by mass or more in the hair cosmetic.

[(D): Nonionic surfactant]
Furthermore, it is preferable to contain a nonionic surfactant as component (D) from the viewpoint of realizing a three-dimensional and bulky hair style when the hair cosmetic composition of the present invention is used. Preferred nonionic surfactants include sorbitol polyoxyalkylene glycol ether, glycerin polyoxyalkylene glycol ether, diglycerin polyoxyalkylene glycol ether, methyl glucose polyoxyalkylene glycol ether, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene mono Examples thereof include alkyl ethers and polyoxyalkylene monoalkenyl ethers, and it is preferable to blend one or more selected from these.

  The mass ratio [(A) + (B)] / (D) of the total content of component (A) and component (B) to the content of component (D) in the hair cosmetic composition of the present invention From the viewpoint of suppressing the feeling of stickiness and suppressing the weight of the finished product, it is preferably 0.6 or more, more preferably 0.8 or more, still more preferably 1.2 or more, still more preferably 1.4 or more, and still more preferably 1.8 or more. In addition, it is possible to make a bulky style, and it is possible to re-hair, and from the viewpoint of suppressing the feeling of stiffness, it is preferably 100 or less, more preferably 80 or less, more preferably 40 or less, more preferably 30 or less. It is.

  The content of the component (D) in the hair cosmetic composition of the present invention is preferably 0.03% by mass or more from the viewpoint of being able to make a bulky style and capable of re-styling, and suppressing the feeling of stiffness. More preferably, it is 0.05 mass% or more, More preferably, it is 0.075 mass% or more, More preferably, it is 0.1 mass% or more. Moreover, from the viewpoint of suppressing stickiness and finish weight without impairing the re-styling property, it is preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less, and still more preferably 2.5%. It is not more than mass%, more preferably not more than 2.0 mass%.

[Optional ingredients]
In addition to the above-described components, a plasticizer component can be added to the hair cosmetic composition of the present invention for the purpose of imparting appropriate tackiness and re-tackiness properties without impairing self-selective tackiness. Examples of such plasticizer components include polyhydric alcohols such as glycerin, 1,3-butanediol and dipropylene glycol, and surfactants other than component (D).

  Moreover, the cosmetic oil agent can be added within a limit (0.1 to 10% by mass) that does not hinder the effects of the present invention. Such cosmetic oils include glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; waxes such as beeswax, whale wax, lanolin, carnauba wax; cetyl alcohol, oleyl alcohol, hexadecyl alcohol Higher alcohols such as lauryl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol; isopropyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, Esters of myristic acid octyldodecyl acid; liquid oils such as liquid paraffin, petrolatum, squalane, hydrogenated polyisobutene; dimethylpolysiloxane, methylphenylpolysiloxane, polyether modified Examples include silicone derivatives such as silicone oil, epoxy-modified silicone oil, amino-modified silicone oil, and alkyl-modified silicone oil. Furthermore, an emulsifier can be added in order to stabilize the emulsification of these cosmetic oils. As the emulsifier, any of anionic, amphoteric, cationic and nonionic surfactants can be used.

  Further, the hair cosmetic composition of the present invention can be added with a fragrance, a pigment, and a preservative and an antioxidant to prevent daily deterioration of the hair cosmetic composition in order to increase commercial value. Depending on the conditions, a humidity control agent, a curing agent, an antistatic agent, an antifoaming agent, a dispersing agent, a thickening agent, an ultraviolet absorber, a colored dye, a dye fixing agent, a propellant and the like can be added.

[Drug type]
There is no restriction | limiting in particular as a dosage form of the hair cosmetics of this invention, Transparent liquid form, lotion form, emulsion, gel form, foam form (aerosol, non-aerosol) etc. are possible.

  The aerosol hair cosmetic is produced by filling the pressure cosmetic container with the above-described hair cosmetic together with a propellant. Examples of the propellant include liquefied petroleum gas (LPG), dimethyl ether (DME), carbon dioxide gas, nitrogen gas, and mixtures thereof. Alternatively, alternative CFCs such as HFC-152a can be used. The amount of the propellant is the mass ratio of the stock solution to the propellant in order to obtain good jetting properties and good adhesive properties. Stock solution / propellant = 5/95 to 99/1, especially 20/80 to 95/5 The range of is preferable. Moreover, in order to obtain a good injection characteristic and a good adhesive characteristic, the pressure in the pressure vessel is preferably adjusted to be 0.12 to 0.45 MPa at a temperature of 25 ° C.

〔viscosity〕
The viscosity of the hair cosmetic composition of the present invention is preferably 100 mPa · s or more, more preferably 150 mPa · s or more, still more preferably 200 mPa · s or more, and further preferably 300 mPa · s or more, from the viewpoint of not dripping from the hand or hair. In addition, from the viewpoint of ease of spreading on the hair and ease of shaping, it is preferably 100,000 mPa · s or less, more preferably 20,000 mPa · s or less, more preferably 5,000 mPa · s or less, more preferably It is 3000 mPa · s or less. Here, the viscosity in the present invention refers to a viscosity measured with a B-type viscometer at 30 ° C. In addition, the rotor used at the time of measurement and the number of rotations are selected according to the viscosity of the hair cosmetics and appropriate conditions are selected according to the manual of the measuring machine.

[Hair shaping method]
The hair cosmetic composition of the present invention can be suitably used as a hair styling agent. A method for using as a hair styling agent, that is, a hair styling method is a method comprising the steps of i) applying the hair cosmetic of the present invention to the hair, and ii) preparing the hair by applying the hair cosmetic and making a hairstyle. Any method can be adopted. The hair to which the hair cosmetic composition of the present invention is applied may be wet or dry, but the hair cosmetic composition of the present invention is more suitable for dry hair.

  For example, when the hair cosmetic composition of the present invention is used for wet hair, it is preferable to towel dry the wet hair before performing step i). In step ii), the hair can be dried or shaped using an iron or a dryer when the hair is trimmed. By such a method, the hair can be effectively shaped, and the shape can be maintained. In addition, when the hair cosmetic composition of the present invention is uniformly applied from the root or inside of the hair in the step i) and is dried using a dryer when preparing the hair in the step ii), it looks and feels. Is preferable in that the volume can be increased.

  When the hair cosmetic composition of the present invention is used for dry hair, when applying the hair cosmetic composition to the hair in step i), the hair cosmetic composition may be partially applied to the part whose shape is to be changed. However, it may be uniformly applied to the base of the hair or the entire inside. Since the hair cosmetic composition of the present invention has an appropriate viscosity, it has a characteristic that it is easy to spread even on dry hair, and is suitable for a method of uniformly applying to the root and inside of dry hair. Can be used. In addition, when preparing the hair in the step ii), it is possible to draw a suitable amount of hair with a finger to make a hair bundle. By performing such an operation, a light-looking hair bundle can be made and the shape of the hair can be changed. Further, optionally, the hair bundles may be shaped by bending or twisting. By performing such an operation, a moving hairstyle can be created.

  In addition, after the hair cosmetic composition of the present invention is applied to the hair and the hair is set, the set hairstyle can be remade without using a dryer or an iron, or the disordered hairstyle can be adjusted to the original shape. Such hair styling once set can be easily performed with fingers.

  With respect to the embodiments described above, preferred aspects of the present invention will be further disclosed below.

<1> A hair cosmetic comprising the following components (A), (B) and (C) and having a pH of 6 or less at 25 ° C.
(A) Oxyalkylene polymer represented by the following general formula (a1)-(AO) _n- (a1)
[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, and n represents a number of 50 to 12,000. However, n AOs consist of at least two types of alkyleneoxy groups, and the arrangement thereof may be either random or block. ]
(B) Consists of a structural unit represented by the following general formula (b1) and a structural unit represented by the following general formula (b2), having a weight average molecular weight of 5,000 to 1,000,000 and an acid value of 300 to 780. polymer ^{_{- (CH 2 CR 1 COOH)}} - (b1)
− (CH ₂ CR ² COOR ³ ) − (b2)
[Wherein, R ¹ and R ² represent a hydrogen atom or a methyl group, and R ³ represents a hydrocarbon group having 2 to 22 carbon atoms. ]
(C) A polymer of one or more monomers selected from acrylic acid, alkyl acrylate, methacrylic acid and alkyl methacrylate is cross-linked with one or more allyl ethers of polyhydroxy compounds. Polymer

<2> The viscosity at 30 ° C. is preferably 100 mPa · s or more, more preferably 150 mPa · s or more, further preferably 200 mPa · s or more, further preferably 300 mPa · s or more, and preferably 100,000 mPa · s or more. The hair cosmetic composition according to <1>, which is s or less, more preferably 20,000 mPa · s or less, further preferably 5,000 mPa · s or less, and further preferably 3,000 mPa · s or less.

<3> The content of the component (C) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, further preferably 0.25% by mass or more, and preferably 5% by mass or less, more preferably 3%. Hair cosmetic according to any one of <1> or <2>, which is not more than mass%, more preferably not more than 1.5 mass%.

<4> The hair cosmetic according to any one of <1> to <3>, preferably using water as a medium.

<5> The weight average molecular weight of the oxyalkylene polymer of component (A) is preferably 3,000 or more, more preferably 5,000 or more, further preferably 7,000 or more, more preferably 10,000 or more, further 50,000 or more, The hair cosmetic composition according to any one of <1> to <4>, which is 100,000 or more, preferably 600,000 or less, more preferably 200,000 or less, and further 150,000 or less.

<6> n AOs in the component (A) are preferably a combination of two or more alkyleneoxy groups having 2 to 4 carbon atoms, more preferably a combination of an ethyleneoxy group and a propyleneoxy group. The hair cosmetic composition according to any one of> to <5>.

<7> The proportion of propyleneoxy groups in the whole component (A) is preferably 1% by mass or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, and further preferably 10% by mass or more. Moreover, it is preferably 60% by mass or less, more preferably 50% by mass or less, further preferably 40% by mass or less, further preferably 30% by mass or less, and further preferably 15% by mass or less. <1> to <6> Hair cosmetics according to any one of the above.

<8> The content of the component (A) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, further preferably 0.5% by mass or more, and further preferably 1% by mass or more. Preferably, it is 20% by mass or less, more preferably 15% by mass or less, further preferably 10% by mass or less, and further preferably 5% by mass or less, according to any one of <1> to <7>. Hair cosmetics.

<9> The weight average molecular weight of the polymer of component (B) is preferably 5,000 or more, more preferably 7,000 or more, still more preferably 10,000 or more, and preferably 1,000,000 or less, more preferably 100,000 or less. The hair cosmetic according to any one of <1> to <8>, more preferably 50,000 or less, and still more preferably 20,000 or less.

<10> The content of the component (B) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, further preferably 0.1% by mass or more, further preferably 0.5% by mass or more, and further preferably 1% by mass or more. Preferably, it is 20% by mass or less, more preferably 15% by mass or less, still more preferably 10% by mass or less, and further preferably 5% by mass or less, according to any one of <1> to <9>. Hair cosmetics.

<11> In the general formula (a1) in the component (A), n is preferably 100 or more, more preferably 150 or more, further preferably 500 or more, further 1,000 or more, and preferably 4,000 or less, more The hair cosmetic according to any one of <1> to <10>, preferably 3,000 or less, more preferably 2500 or less.

<12> The pH of the hair cosmetic is preferably 5.9 or less, more preferably 5.8 or less, further preferably 5.5 or less, more preferably 5.0 or less, and preferably 2 or more, more preferably 2.5 or more, and still more preferably The hair cosmetic composition according to any one of <1> to <11>, wherein is 3 or more, more preferably 3.5 or more.

<13> The carbon number of R ³ in the general formula (b2) in the component (B) is preferably 10 or more, more preferably 14 or more, and preferably 18 or less <1> to <12> Hair cosmetics according to any one of the above.

<14> The acid value of the component (B) is preferably 350 or more, more preferably 390 or more, further preferably 450 or more, preferably 700 or less, more preferably 630 or less, more preferably 580 or less, The hair cosmetic according to any one of <1> to <13>, which is more preferably 500 or less.

<15> The mass ratio (A) / (B) of the component (A) to the component (B) is preferably 30/70 or more, more preferably 35/65 or more, still more preferably 40/60 or more. The hair cosmetic composition according to any one of <1> to <14>, preferably 70/30 or less, more preferably 65/35 or less, and still more preferably 60/40 or less.

<16> The mass ratio of the structural units other than (b1) and (b2) in the polymer of component (B) is preferably 30% by mass or less, more preferably 20% by mass or less, and further preferably 15% by mass or less. The hair cosmetic composition according to any one of <1> to <15>.

<17> The mass ratio (b1) / (b2) of (b1) and (b2) which are constituent units of the component (B) is preferably 55/45 or more, more preferably 60/40 or more, The hair cosmetic according to any one of <1> to <16>, preferably 90/10 or less, more preferably 80/20 or less, and still more preferably 70/30 or less.

<18> The content of the component (C) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.25% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass. The hair cosmetic according to any one of <1> to <17>, which is not more than mass%, more preferably not more than 1.5 mass%.

<19> The mass ratio (C) / (B) of the component (C) to the component (B) is preferably 2 or less, more preferably 1.5 or less, still more preferably 1.0 or less, and preferably 0.01 or more, The hair cosmetic according to any one of <1> to <18>, more preferably 0.05 or more, and still more preferably 0.1 or more.

<20> Any of <1> to <19>, wherein the polymer of component (C) is preferably one or more selected from carbomer, acrylates / C10-30 alkyl acrylate cross polymer and acrylate cross polymer 3 Hair cosmetics according to crab.

<21> Preferably, the hair cosmetic composition according to any one of <1> to <20>, further comprising a nonionic surfactant as component (D).

<22> The mass ratio [(A) + (B)] / (D) of the total content of the component (A) and the component (B) to the content of the component (D) is preferably 0.6 or more, more preferably 0.8 or more, more preferably 1.2 or more, further preferably 1.4 or more, more preferably 1.8 or more, and preferably 100 or less, more preferably 80 or less, still more preferably 40 or less, more preferably 30 or less < 21> Hair cosmetics.

<23> A hair styling method including the following steps i) and ii).
i) A step of applying the hair cosmetic composition according to any one of <1> to <22> to the hair
ii) A hair styling method including a step of preparing hair by applying hair cosmetics and preparing a hairstyle.

<24> A hair styling method comprising the following steps i) and ii):
i) A step of uniformly applying the hair cosmetic composition according to any one of <1> to <22> to the root or inside of the dry hair
ii) Drawing hair with hair cosmetic applied to make a hair bundle and making a hairstyle

<25> Use of the hair cosmetic according to any one of <1> to <22> as a hair styling agent.

In the following examples, the weight average molecular weight of each polymer was measured by the following method.
<Measurement method of weight average molecular weight>
When there was a catalog value, the catalog value was adopted. When there was no catalog value or the like and it was necessary to measure the weight average molecular weight, the product name “HLC-8220GPC” (Tosoh Corporation) was used as a GPC device, and measurement was performed under the following measurement conditions.

When measuring a polymer other than component (B),
・ Sample concentration: 0.25% by mass
・ Sample injection volume: 100μL
・ Eluent: Chloroform ・ Flow rate: 1.0 mL / min
・ Measurement temperature: 40 ℃
Column: Product name “KG” (1) + product name “K-804L” (2) (above, manufactured by Shodex) were connected in series.

When measuring the polymer of component (B),
・ Sample concentration: 0.25% by mass
・ Sample injection volume: 100μL
・ Eluent: N, N-dimethylformamide solution (60mmol / L H3PO4, 50mmol / L LiBr)
・ Flow rate: 1.0mL / min
・ Measurement temperature: 40 ℃
-Column: Trade name “TSKgel α-M” (2 pieces) (above, manufactured by Tosoh Corporation) connected in series.

Further, the detector and the standard sample were measured using the following samples under any measurement conditions.
・ Detector: Differential refractometer (attached to the GPC device trade name “HLC-8220GPC” (Tosoh Corporation))
Standard polystyrene samples: “TSKstandard POLYSTYRENE F-10” (molecular weight 102,000), F-1 (1020,000), A-1000 (870) (above, Tosoh Corporation), and “POLYSTYRENE STANDARD” (molecular weight 900,000, 3 10,000; Nishio Kogyo)

<Method for measuring acid value>
When there was a catalog value, the catalog value was adopted. When there was no catalog value etc. and it was necessary to measure the acid value of a component (B), it measured according to the acid value measuring method (2nd method) as described in the Japanese quasi-drug raw material specification 2006. When the component (B) is a solution or dispersion, the acid value of the solution or dispersion was measured, and the acid value of the polymer was calculated according to the following formula according to the concentration of the component (B).

    Polymer acid value = acid value of polymer solution or dispersion ÷ polymer concentration (%) × 100

Synthesis Example 1 Synthesis of alkyl acrylate / acrylic acid 82.1 g of isopropyl alcohol was charged into a 500 mL glass separable flask equipped with a Teflon (registered trademark) crescent stirring blade, a reflux condenser, and a thermometer. Next, after reducing the pressure in the reactor to 20 kPa, a replacement operation was performed three times by blowing nitrogen at normal pressure. Thereafter, the flask was placed in an oil bath, and the temperature of the reaction solution was raised to 80 ° C. while stirring at 100 rpm. After confirming the temperature rise, a mixed solution of 98 mass% acrylic acid 180.9g, stearyl acrylate 89.1g and isopropyl alcohol 73.4g, dimethyl 2,2'-azobis (2-methylpropionate) 1.44g and isopropyl alcohol 13.0 The mixed solution of g was dropped into the reaction solution separately over 4 hours. The mixture was further stirred for 1 hour while maintaining the internal temperature at 80 ° C. Then, a mixed solution of 0.72 g of dimethyl 2,2′-azobis (2-methylpropionate) and 6.5 g of isopropyl alcohol was added to the reaction solution over 30 minutes. It was dripped. The mixture was further stirred for 6 hours while maintaining the internal temperature at 80 ° C., and the reaction solution was cooled to room temperature. Thereafter, isopropyl alcohol was distilled off to obtain a polymer. The obtained polymer had an acid value of 472 and a weight average molecular weight of 14,000.

Examples 1-9, Comparative Examples 1-4
A composition having the formulation shown in Table 1 was prepared by a conventional method. It should be noted that the pH of Examples 1 to 8 and Comparative Example was 2-aminomethylpropanol (AMP), and Example 9 was sodium hydroxide, so that the pH was normally adjusted at room temperature (25 ° C.). Adjusted by law. These compositions were evaluated according to the following evaluation methods.

<Measurement method of pH>
The aqueous solution which mix | blended 5 mass% of the composition of each Example and the comparative example was prepared, and it measured on 25 degreeC conditions.

<Measurement method of viscosity>
About the composition of each Example and a comparative example, it measured with the B-type viscometer TVB-10M (Toki Sangyo Co., Ltd.) up to a viscosity of 20,000 mPa · s under the conditions after rotation at 30 ° C., 30 r / m for 60 seconds . If the viscosity of the composition is 20,000 mPa · s or more, use a B-type viscometer TVB-10R (Toki Sangyo) and T-BAR STAGE TS-10 (Toki Sangyo) at 30 ° C, 5r / m, measured under conditions after rotation for 60 seconds.
In addition, the rotor has a viscosity of M1 up to a viscosity of 200 mPa · s, M2 of a viscosity from 200 mPa · s to 1,000 mPa · s, M3 from a viscosity of 1,000 mPa · s to 4,000 mPa · s, and a viscosity of 4,000 mPa · s. M4 was used up to 20,000 mPa · s, and TB viscosity was measured from 20,000 mPa · s to 160,000 mPa · s, and TC rotor was used when the viscosity exceeded 160,000 mPa · s.

<Self-adhesion / other sensory evaluation methods>
Apply 0.4 g of each composition on a resin sheet made of biaxially stretched PET film (Toray Industries, Lumirror L-38-T60) in a range of 30 mm x 20 mm, and let stand at 25 ° C, 40% RH for 24 hours. A dry composition was prepared, and sensory evaluation of self-adhesion strength and other adhesion strength was performed by the following methods in an environment of 25 ° C. and 40 to 65% RH.

(Self-adhesion)
A comparison of the self-adhesive strength of Example 1 with respect to the resistance force when the dry cast films were bonded to each other with a force of 1 g / cm ² and peeled off at a peeling speed of 30 mm / sec in a T-shaped peeling format after 1 second. The self-adhesion force of Example 5 was scored as 1, and was scored in 5 stages, and the expert panelist evaluated it sensory.

(Other strength)
After pressing the dry cast film with a force of 1 g / cm ² with a finger, the resistance force felt when peeling the finger at 100 mm / s after 0.1 second was scored as 5 in Comparative Example 6 and 6 as Example 1. Was scored in 5 levels, and a specialized panelist evaluated it sensorially.

<Ease of shaping>
Each composition was placed on a wig of short hair (about 20 cm long) made of Chinese black hair with no habit, and spread lightly on the palm of the hand, and then blended into the entire hair. This operation was repeated twice and a total of 2 g of the agent was applied to the entire hair. After that, a suitable amount of hair was pulled out with fingers to make a bundle, and the resulting hair bundle was bent and twisted to create a style with a sense of bundle and movement. Evaluation was performed from the viewpoint of whether the style at this time could be easily achieved.
The evaluation was made by 7 panelists who chose either “easy to shape”, “neither” or “difficult to shape” when each composition was processed by the above operation. I let you. List the number of panelists who answered that it was easy to shape / neither / hard to shape.

<Ease of application>
A hair bundle of 25 cm in length and 3 g in weight, made of Chinese black hair without habit, was placed on black paper and fixed. 50 mg of each composition was dripped near the root of the hair bundle and allowed to stand for 5 seconds, and then each composition was spread from the root to the hair tip with a finger. Thereafter, the hair bundle was removed, and the length of the trace of each composition remaining on the black paper was measured. The length at that time was used as an index of ease of application.

<Hair conditioning>
From the viewpoint of whether the wig has a style with a sense of bunch and movement when it is allowed to stand for 1 minute after performing the same operation as the method for evaluating ease of shaping, 7 panelists were asked Is “strong”, “can't say either”, or “weak hairstyling”. The number of panelists who answered that the hair styling power is strong / cannot be said / weak hair styling power is shown in order.

<Re-hair styling>
After evaluating the easiness of shaping, comb the wig five times (Dellin Smooth Comb # 802 (straight); Takikawa Co., Ltd.) to break the shape of the hair bundle, then use your fingers again to An operation to return the bundle to its previous shape was performed. The wig after the operation was evaluated from the viewpoint of returning to the original shape of the hair bundle without any fine protrusion of hair. In the evaluation, seven panelists were allowed to select either “easy to re-hair”, “can't say either” or “difficult to re-hair” when the above operation was performed. The panel shows the number of panelists who answered that it was easy to re-hair / cannot say / hard to re-hair.

<With or without flaking>
The hair on the wig after passing through the comb 5 times (Dellin Smooth Comb # 802 (straight); Takikawa Co., Ltd.) is visually observed for the wig after evaluating the ease of shaping, and the presence or absence of flaking is observed. Judged.

<No stickiness>
Seven panelists evaluated the feel of hair using the dry wig after evaluating ease of shaping. As for the lack of stickiness, the user selected one of “I did not feel stickiness” / “I could say neither” / “I felt stickiness”. Number of panelists who answered that they did not feel sticky / neither / feeled sticky.

* 1: Weight average molecular weight 100,000, EO / PO mass ratio = 90/10, random polymerization (Madesei Chemical Industry Co., Ltd., Alcox EP1010N)
(Degree of polymerization calculated from EO / PO mass ratio: EO is 2045, PO is 172)
* 2: Weight average molecular weight 1,000,000, EO / PO mass ratio = 90/10, random polymerization (Madesei Chemical Co., Ltd., Alcox EP10)
(Degree of polymerization calculated from EO / PO mass ratio: EO is 20455, PO is 1724)
* 3: Stearyl acrylate / acrylic acid = 67/33 (mass ratio), acid value 472, weight average molecular weight 14,000
* 4: Carbopol 981, manufactured by Lubrizol
* 5: Carbopol Ultrez10, manufactured by Lubrizol
* 6: Carbopol Ultrez30, manufactured by Lubrizol
* 7: Carbopol Ultrez 20, manufactured by Lubrizol
* 8: Carbopol Ultrez21, manufactured by Lubrizol
* 9: Carbopol ETD2020, manufactured by Lubrizol
* 10: Carbopol AQUA SF-1, Lubrizol
* 11: Carbopol AQUA SF-2, made by Lubrizol
* 12: SMACK SP-10P, manufactured by Kao
* 13: Softanol 90, manufactured by Nippon Shokubai
* 14: The spinnability of the composition was strongly observed.

Claims (10)

A hair cosmetic comprising the following components (A), (B) and (C) and having a pH of 6 or less at 25 ° C.
(A) Oxyalkylene polymer represented by the following general formula (a1)-(AO) _n- (a1)
[In the formula, A represents an alkylene group having 2 to 6 carbon atoms, and n represents a number of 50 to 12,000. However, n AOs consist of at least two types of alkyleneoxy groups, and the arrangement thereof may be either random or block. ]
(B) Consists of a structural unit represented by the following general formula (b1) and a structural unit represented by the following general formula (b2), with a weight average molecular weight of 5,000 to 1,000,000 and an acid value of 300 to 780. there polymers ^{_{- (CH 2 CR 1 COOH)}} - (b1)
− (CH ₂ CR ² COOR ³ ) − (b2)
[Wherein, R ¹ and R ² represent a hydrogen atom or a methyl group, and R ³ represents a hydrocarbon group having 2 to 22 carbon atoms. ]
(C) A polymer of one or more monomers selected from acrylic acid, alkyl acrylate, methacrylic acid and alkyl methacrylate is cross-linked with one or more allyl ethers of polyhydroxy compounds. Polymer   The hair cosmetic according to claim 1, wherein the viscosity at 30 ° C is 100 mPa · s or more and 100,000 mPa · s or less.   The hair cosmetic composition according to claim 1 or 2, wherein the oxyalkylene polymer of component (A) has a weight average molecular weight of 3,000 to 600,000.   The hair cosmetic composition according to any one of claims 1 to 3, wherein the mass ratio (C) / (B) of the component (C) to the component (B) is 0.01 or more and 2 or less.   The hair cosmetic composition according to any one of claims 1 to 4, wherein the content of the component (C) is 0.01 mass% or more and 5 mass% or less.   The hair cosmetic composition according to any one of claims 1 to 5, wherein water is used as a medium.   The hair cosmetic according to any one of claims 1 to 5, wherein AO of the component (A) is a combination of an ethyleneoxy group and a propyleneoxy group.   The hair cosmetic composition according to any one of claims 1 to 7, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is from 30/70 to 70/30.   The hair cosmetic composition according to any one of claims 1 to 8, wherein the content of the component (A) is 0.01% by mass or more and 20% by mass or less.   The hair cosmetic composition according to any one of claims 1 to 9, wherein the content of the component (B) is 0.01 mass% or more and 20 mass% or less.