JP2012140357A - Aqueous hair detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aqueous hair detergent by which volume feeling can be obtained in hair after drying by making it possible to easily separating each hair in a drying process of wet hair and raising the root of the hair.SOLUTION: The aqueous hair detergent contains following components (A) to (D): (A) anionic surfactant; (B) cationized galactomannan; (C) elastic solid particle; and (D) cationic group containing copolymer obtained by copolymerizing monomer mixture containing monomers (a1), (a2), (a3) having specific structures. The monomer (a1) is at least one hydrophilic nonionic group containing vinyl monomers represented by a formula (I). The monomer (a2) is at least one cationic group containing vinyl monomers represented by a specific general formula, and the monomer (a3) is a crosslinkable vinyl monomer having two or more reactive unsaturated groups. In the formula, Rrepresents a hydrogen atom or a methyl group, Rrepresents a hydrogen atom or a 1-4C linear or branched alkyl group or alkenyl group, Rrepresents a 1-4C linear or branched alkyl group or alkenyl group.

Description

  The present invention relates to an aqueous hair cleansing agent.

  The impression of hair as well as clothes and makeup is very important. It is one of the dissatisfaction points to reduce the impression that the hair style that the hair breaks in everyday life is not decided. Therefore, there is a demand for hair with a sense of volume. However, since the volume of hair decreases with age, there is a great need for improving this.

  On the other hand, various effects on hair are expected from aqueous hair cleansing agents. Conventionally, anionic surfactants have been used as one of the main surfactants for aqueous hair cleansing agents. For example, Patent Document 1 discloses a technique of using an anionic surfactant and a water-insoluble silicone elastomer powder in order to enhance the dry feeling after hair drying and the conditioning effect. Further, for example, Patent Documents 2 and 3 disclose techniques using an anionic surfactant and a specific cationized polymer in order to enhance the feeling after drying and the feeling at the time of rinsing.

JP-A-10-203932 JP 2000-144184 A JP 2009-235059 A

  However, with conventional aqueous hair cleansing agents, in the process of drying wet hair, the hair tends to bind to the scalp and the hairs stick together, giving a sense of volume to the dried hair It wasn't.

  The present invention has been made in view of such circumstances. In the drying process of wet hair, the hair is easily separated and the volume of the hair after drying is raised by raising the root of the hair. An aqueous hair cleansing agent that can be obtained is provided.

  The present inventor can solve the above-mentioned problems by using an anionic surfactant, a cationized galactomannan, and a specific cationic group-containing copolymer in combination to easily leave elastic solid particles on the hair surface. It has been found that an aqueous hair cleanser can be obtained.

That is, according to the present invention,
The following components (A) to (D):
(A) Anionic surfactant (B) Cationized galactomannan (C) Elastic solid particles (D) Copolymerizing a monomer mixture containing the following monomers (a1), (a2) and (a3) A cationic hair group-containing copolymer obtained by the above is provided.
Monomer (a1): at least one kind of hydrophilic nonionic group-containing vinyl monomer represented by formula (I) or (II)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ｒ^２は水素原子、あるいは炭素数１〜４の直鎖状もしくは分岐状のアルキル基又はアルケニル基を示し、Ｒ^３は炭素数１〜４の直鎖状もしくは分岐状のアルキル基又はアルケニル基を示す。）

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom, a linear or branched alkyl group or alkenyl group having 1 to 4 carbon atoms, and R ³ represents 1 to carbon atoms. 4 linear or branched alkyl groups or alkenyl groups.)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ａ^１及びＡ^２は同一又は異なって、−（ＣＨ_２）_ｎ−（ｎは２〜６の整数を示す）で表される基を示し、Ｂは−Ｏ−又は−ＣＨ_２−基を示す。）
単量体（ａ２）：一般式（ＩＩＩ）及び（ＩＶ）で表されるカチオン性基含有ビニル単量
体の少なくとも１種

(In the formula, R ¹ represents a hydrogen atom or a methyl group, A ¹ and A ² are the same or different, and a group represented by — (CH ₂ ) _n — (n represents an integer of 2 to 6). shows, B is -O- or -CH ₂ - shows a group).
Monomer (a2): at least one cationic group-containing vinyl monomer represented by the general formulas (III) and (IV)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ｒ^４及びＲ^５は同一又は異なって、炭素数１〜４のアルキル基又はアルケニル基を示し、Ｒ^６は水素原子又は炭素数１〜４のアルキル基を示し、Ｙは−Ｏ−、−ＮＨ−、−ＣＨ_２−又は−Ｏ−ＣＨ_２ＣＨ（ＯＨ）−基を示し、Ｚは炭素数１〜４（ただしＹが−ＣＨ_２−のときは炭素数０〜３）の直鎖状又は分岐状のアルキレン基を示し、Ｘは酸の共役塩基を示す。）

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ⁴ and R ⁵ are the same or different and represent an alkyl group or an alkenyl group having 1 to 4 carbon atoms, and R ⁶ represents a hydrogen atom or 1 to carbon atoms. 4 represents an alkyl group, Y represents —O—, —NH—, —CH ₂ — or —O—CH ₂ CH (OH) — group, Z represents 1 to 4 carbon atoms (Y is —CH _2). -Represents a linear or branched alkylene group having 0 to 3 carbon atoms, and X represents an acid conjugate base.

（式中、Ｒ^７及びＲ^８は同一又は異なって水素原子又はメチル基を示し、Ｒ^９及びＲ^１０は同一又は異なって水素原子又は炭素数１〜４のアルキル基を示し、Ｘは酸の共役塩基を示す。）
単量体（ａ３）：２個以上の反応性不飽和基を有する架橋性ビニル単量体

(In the formula, R ⁷ and R ⁸ are the same or different and each represents a hydrogen atom or a methyl group; R ⁹ and R ¹⁰ are the same or different and each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; Indicates a conjugate base.)
Monomer (a3): a crosslinkable vinyl monomer having two or more reactive unsaturated groups

  According to the present invention, there is provided an aqueous hair cleansing agent that makes it easy to separate hair one by one in the process of drying wet hair and raises the root of the hair, thereby providing a sense of volume to the hair after drying. it can.

It is sectional drawing which shows the cross section of a model hair bundle typically. It is a schematic diagram for demonstrating the measuring method of rising amount. It is a schematic diagram for demonstrating the measuring method of rising amount. It is a schematic diagram for demonstrating the measuring method of rising amount. It is a photograph figure which shows the observation result of coacervation.

  Hereinafter, the aqueous hair cleansing agent of the present invention will be described.

(A) Anionic surfactant As a component (A), a sulfuric acid type, a sulfonic acid type, and a carboxylic acid type thing can be used. For example, alkyl sulfate, alkenyl sulfate, polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkenyl ether sulfate, sulfosuccinic acid alkyl ester salt, polyoxyalkylene sulfosuccinic acid alkyl ester salt, alkane sulfonate, higher fatty acid salt, alkyl Examples include ether carboxylates. Among these, polyoxyalkylene alkyl ether sulfates, polyoxyalkylene alkenyl ether sulfates, alkyl sulfates, and alkenyl sulfates are preferable, and those represented by the following general formula (1) or (2) are preferable. .

R ¹¹ O (CH ₂ CH ₂ O) _m SO ₃ M (1)
R ¹¹ OSO ₃ M (2)

(In the formula (1) or (2), R ¹¹ represents an alkyl group or alkenyl group having 10 to 18 carbon atoms, and M represents a cation derived from an alkali metal, alkaline earth metal, ammonium, alkanolamine or basic amino acid. M represents a number of 1 to 5 in terms of mass average.)

Among these, R ¹¹ in the general formula (1) is an alkyl group having 12 to 14 carbon atoms, and m is a number of 1 on a mass average from the viewpoint of achieving both quick foaming and good foam feel. Polyoxyethylene alkyl ether sulfates in which M is ammonium or sodium are preferred.

  Further, the anionic surfactants represented by the general formula (1) and the general formula (2) are used in combination, so that foaming is faster and foam quality becomes creamy.

  The content of the component (A) is preferably 1 to 30% by mass, more preferably 5 to 25% by mass, and further 8 to 20% in the aqueous hair cleanser of the present invention from the viewpoint of the viscosity of the aqueous hair cleanser. % By mass is preferable, and 9 to 15% by mass is particularly preferable.

(B) Cationized galactomannan As a component (B), a quaternary nitrogen-containing group was introduced into a high molecular weight polysaccharide in which a side chain having galactose as a structural unit was bonded to a main chain having mannose as a structural unit. Water-soluble cationized polymers are mentioned. Galactomannans are obtained, for example, from the endosperm of legume seeds. A material having different physical properties depending on the composition ratio of mannose and galactose and having a ratio of galactose to mannose of 1: 1 to 1: 5 is preferable. More specifically, the ratio of galactose to mannose of 1: 1 is fenugreek gum, 1: 2 is guar gum, 1: 3 is tara gum, 1: 4 is locust bean gum, 1: 5 Is cassia gum. As commercially available products, Cathinal CF-100 (Toho Chemical Co., Ltd.) is used as the cationized fenugreek gum, Jaguar C-13S and Jaguar C-17 (Rhodia) are used as the cationized guar gum, and Kachinal CT- is used as the cationized tara gum. 100 (Toho Chemical Industries Co., Ltd.), Cationic CLB-100 (Toho Chemical Industry Co., Ltd.) as cationized locust bean gum, Cassia EX-906 (Noveon Co., Ltd.), etc. as cationized cassia gum. Among these, a cationized guar gum is preferable from the viewpoints of making the hair roots while making the component (C) easy to remain in the hair and imparting a sense of volume to the hair after drying.

  A component (B) can be used 1 type or in combination of 2 or more types. The content of the component (B) in the aqueous hair cleanser is the water-based composition of the present invention, from the viewpoint of obtaining foaming, rinsing smoothness, and smoothness after drying while allowing the component (C) to easily remain in the hair. It is preferable that it is 0.02-3 mass% in a hair washing | cleaning agent, 0.04-1 mass% is more preferable, and 0.1-0.6 mass% is further more preferable from the viewpoint of obtaining the dry feeling after drying.

  In the aqueous hair cleansing agent of the present invention, the mass ratio of the component (B) to the component (C) is (B) / (C) = 0 from the viewpoint of the persistence of the component (C) to the hair and the effect of increasing the volume. .1 to 12.5 is preferable, and 1 to 7 is particularly preferable. Moreover, since it becomes easy to make a component (C) remain in hair by mix | blending a component (B), the compounding quantity of a component (C) can be decreased.

(C) Elastic solid particles The component (C) preferably has rubber elasticity and a crosslinked structure. More specifically, for example, methylpolysiloxane obtained by polymerizing or copolymerizing one or more of methylhydrogenpolysiloxane, methylvinylpolysiloxane and α, ω-divinyldimethylpolysiloxane, and derivatives thereof Etc. Examples of the derivative of methylpolysiloxane include amino-modified methylpolysiloxane, phenyl-modified methylpolysiloxane, and epoxy-modified methylpolysiloxane. As the elastic solid particles, water-insoluble silicone elastomer powder is particularly preferable. Here, the rubber elasticity means a property of being deformed by an external stress and returning to the original state from which the stress is removed, and means a material that is deformed by contraction of a polymer chain.

  The water-insoluble silicone elastomer powder may be a composite powder of the above-described methylpolysiloxane or a derivative thereof as a main component and a water-insoluble polymer powder. The derivative may be coated with a water-insoluble polymer by a usual method (hereinafter, these may be referred to as silicone elastomer composite powder). Here, the water-insoluble polymer may be a so-called polymethylsilsesquioxane silicone resin or amorphous silicon dioxide, polyethylene, polypropylene, polystyrene, polyamide, polyester copolymer or styrene / divinylbenzene copolymer. Examples include coalescence.

  The water-insoluble silicone elastomer powder preferably has an average particle size of 0.01 to 100 μm, particularly preferably 0.1 to 30 μm, and more preferably 1 to 10 μm. The particle shape may be spherical, elliptical, or spindle-shaped, but is particularly preferably spherical, and the ratio of major axis / minor axis of the particle is preferably 2 or less, particularly 1.3 or less.

  The water-insoluble silicone elastomer powder preferably has a true specific gravity of 0.9 to 1.2, particularly 0.9 to 1.1. Further, the water-insoluble silicone elastomer powder preferably has a rubber hardness measured according to the JIS A method of 5 to 80, more preferably 10 to 70, and particularly 20 to 50.

  The water-insoluble silicone elastomer powder can be used as it is, but for the purpose of improving stability and ease of operation, use a surfactant-containing emulsion in which the powder is dispersed. You can also Examples of the water-insoluble silicone elastomer powder include KMP-597, X-52-1139G (manufactured by Shin-Etsu Chemical Co., Ltd.), DC TORAY silicone BY29-119 (dimethicone / vinyl dimethicone crosspolymer), Trefil E-500, Commercially available products such as E-501 (above, manufactured by Toray Dow Corning) can be used.

  A component (C) can be used 1 type or in combination of 2 or more types. The content of the component (C) is preferably 0.01% by weight or more in the aqueous hair cleansing agent of the present invention, from the viewpoint of the smoothness to wet hair, the dry feeling after drying and the durability of the conditioning effect, 0.02% by weight or more is more preferable. Further, from the viewpoint of effective persistence on hair and productivity, it is preferably 5% by weight or less, more preferably 1% by weight or less.

  (D) Cationic group-containing copolymer obtained by copolymerizing a monomer mixture containing the following monomers (a1), (a2) and (a3)

  Monomer (a1): at least one kind of hydrophilic nonionic group-containing vinyl monomer represented by formula (I) or (II)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ｒ^２は水素原子、あるいは炭素数１〜４の直鎖状もしくは分岐状のアルキル基又はアルケニル基を示し、Ｒ^３は炭素数１〜４の直鎖状もしくは分岐状のアルキル基又はアルケニル基を示す。）

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom, a linear or branched alkyl group or alkenyl group having 1 to 4 carbon atoms, and R ³ represents 1 to carbon atoms. 4 linear or branched alkyl groups or alkenyl groups.)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ａ^１及びＡ^２は同一又は異なって、−（ＣＨ_２）_ｎ−（ｎは２〜６の整数を示す）で表される基を示し、Ｂは−Ｏ−又は−ＣＨ_２−基を示す。）

(In the formula, R ¹ represents a hydrogen atom or a methyl group, A ¹ and A ² are the same or different, and a group represented by — (CH ₂ ) _n — (n represents an integer of 2 to 6). shows, B is -O- or -CH ₂ - shows a group).

  Monomer (a2): at least one cationic group-containing vinyl monomer represented by the general formulas (III) and (IV)

（式中、Ｒ^１は水素原子又はメチル基を示し、Ｒ^４及びＲ^５は同一又は異なって、炭素数１〜４のアルキル基又はアルケニル基を示し、Ｒ^６は水素原子又は炭素数１〜４のアルキル基を示し、Ｙは−Ｏ−、−ＮＨ−、−ＣＨ_２−又は−Ｏ−ＣＨ_２ＣＨ（ＯＨ）−基を示し、Ｚは炭素数１〜４（ただしＹが−ＣＨ_２−のときは炭素数０〜３）の直鎖状又は分岐状のアルキレン基を示し、Ｘは酸の共役塩基を示す。）

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ⁴ and R ⁵ are the same or different and represent an alkyl group or an alkenyl group having 1 to 4 carbon atoms, and R ⁶ represents a hydrogen atom or 1 to carbon atoms. 4 represents an alkyl group, Y represents —O—, —NH—, —CH ₂ — or —O—CH ₂ CH (OH) — group, Z represents 1 to 4 carbon atoms (Y is —CH _2). -Represents a linear or branched alkylene group having 0 to 3 carbon atoms, and X represents an acid conjugate base.

（式中、Ｒ^７及びＲ^８は同一又は異なって水素原子又はメチル基を示し、Ｒ^９及びＲ^１０は同一又は異なって水素原子又は炭素数１〜４のアルキル基を示し、Ｘは酸の共役塩基を示す。）

(In the formula, R ⁷ and R ⁸ are the same or different and each represents a hydrogen atom or a methyl group; R ⁹ and R ¹⁰ are the same or different and each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; Indicates a conjugate base.)

  Monomer (a3): a crosslinkable vinyl monomer having two or more reactive unsaturated groups

<(A1) Hydrophilic nonionic group-containing vinyl monomer>
As the monomer represented by the general formula (I), (meth) acrylamide, N-methyl (meth) acrylamide, N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide, N- Examples thereof include n-propyl (meth) acrylamide, N-isopropyl (meth) acrylamide, Nt-butyl (meth) acrylamide, N-isobutyl (meth) acrylamide, N-hydroxypropyl (meth) acrylamide and the like. Examples of the monomer represented by the general formula (II) include N- (meth) acryloylmorpholine.

<(A2) Cationic group-containing vinyl monomer>
Specific examples of the compound represented by the general formula (III) include dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, dipropylaminoethyl (meth) acrylate, diisopropylaminoethyl (meth) acrylate, and dibutyl. Aminoethyl (meth) acrylate, diisobutylaminoethyl (meth) acrylate, di-t-butylaminoethyl (meth) acrylate, dimethylaminopropyl (meth) acrylamide, diethylaminopropyl (meth) acrylamide, dipropylaminopropyl (meth) acrylamide, Diisopropylaminopropyl (meth) acrylamide, dibutylaminopropyl (meth) acrylamide, diisobutylaminopropyl (meth) acrylamide, di-t-butyla Examples include (meth) acrylic acid esters having a dialkylamino group such as nopropyl (meth) acrylamide or acid neutralized products obtained by neutralizing (meth) acrylamide with an acid or quaternized ammonium salts quaternized with a quaternizing agent. . Specific examples of the compound represented by the general formula (IV) include diallyl-type quaternary ammonium salts such as dimethyldiallylammonium chloride and diethyldiallylammonium chloride.

  Preferred acids for obtaining the above acid neutralized products include hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, acetic acid, formic acid, maleic acid, fumaric acid, citric acid, tartaric acid, adipic acid, sulfamic acid, toluenesulfonic acid, and lactic acid. And organic acids having 1 to 22 carbon atoms in total, such as pyrrolidone-2-carboxylic acid, succinic acid, propionic acid, and glycolic acid. Preferred quaternizing agents for obtaining the quaternary ammonium salts include alkyl halides having 1 to 8 carbon atoms such as methyl chloride, ethyl chloride, methyl bromide, methyl iodide, dimethyl sulfate, diethyl sulfate, disulfate sulfate. Common alkylating agents such as -n-propyl can be mentioned.

  Among the compounds represented by the general formula (III) or (IV), dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, dimethylaminopropyl (meth) acrylamide, diethylaminopropyl ( A quaternary ammonium salt obtained by quaternizing (meth) acrylamide with the above quaternizing agent, or dimethyldiallylammonium chloride may be mentioned. Here, the acid-neutralized monomer has a disadvantage that the stability of the viscosity is low because dissociation of the neutralized acid occurs due to the pH of the system and the polymer structure changes. From this point, a quaternary ammonium salt monomer is more preferable.

<(A3) Crosslinkable vinyl monomer>
Crosslinkable vinyl monomers include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, polypropylene glycol Di (meth) acrylate, 1,2-butylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, glycerol di (meth) acrylate, glycerol tri (meta) ) (Meth) acrylic acid esters of polyhydric alcohols such as acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate; N-methyl Acrylamides such as rilacrylamide, N-vinylacrylamide, N, N′-methylenebis (meth) acrylamide, bisacrylamideacetic acid; divinyl compounds such as divinylbenzene, divinyl ether, divinylethyleneurea; diallyl phthalate, diallyl malate, diallylamine, Polyallyl compounds such as triallylamine, triallylammonium salt, allyl etherified pentaerythritol, allyl etherified sucrose having at least two allyl ether units in the molecule; vinyl (meth) acrylate, allyl (meth) acrylate Of unsaturated alcohols such as 2-hydroxy-3-acryloyloxypropyl (meth) acrylate and 2-hydroxy-3-acryloyloxypropyl (meth) acrylate Meth) acrylic acid esters are used.

  Among these crosslinkable monomers, ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, divinylbenzene, pentaerythritol triallyl ether, and pentaerythritol tetraallyl ether are preferable.

<Other vinyl monomers>
The cationic group-containing copolymer can contain, in addition to the above-mentioned three types of vinyl monomers as essential constituent units, other vinyl monomers that can be copolymerized with these. Other vinyl monomers include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, t- Butyl (meth) acrylate, n-pentyl (meth) acrylate, neopentyl (meth) acrylate, cyclopentyl (meth) acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate, n-octyl (meth) acrylate, isooctyl ( (Meth) acrylate, 2-ethylhexyl (meth) acrylate, n-decyl (meth) acrylate, isodecyl (meth) acrylate, lauryl (meth) acrylate, tridecyl (meth) acrylate, stearyl (Meth) acrylate, isostearyl (meth) acrylate, behenyl (meth) acrylate, phenyl (meth) acrylate, toluyl (meth) acrylate, xylyl (meth) acrylate, benzyl (meth) acrylate, 2-ethoxyethyl (meth) acrylate, Examples include (meth) acrylic acid derivatives such as 2-butoxy (meth) acrylate, 2-phenoxy (meth) acrylate, 3-methoxypropyl (meth) acrylate, and 3-ethoxypropyl (meth) acrylate.

  The other vinyl monomer is preferably used at 30% by weight or less, particularly preferably at 15% by weight or less, based on the total monomers constituting the cationic group-containing copolymer.

<Cationic group-containing copolymer>
A preferred blending ratio of the hydrophilic nonionic group-containing vinyl monomer (a1) and the cationic group-containing vinyl monomer (a2), which is a monomer for forming the cationic group-containing copolymer, is (a1) / ( The molar ratio of a2) is 2/98 to 98/2, and more preferably 40/60 to 97/3. When the molar ratio is large, the expression of thixotropy is facilitated, and when the molar ratio is small, the viscosity can be easily maintained at a low share rate. However, it is preferable that both characteristics are within the above ranges.

  The proportion of the crosslinkable vinyl monomer (a3) is preferably from 0.002 to 5% by weight, particularly preferably from 0.002% by weight to less than 0.1% by weight, based on the total amount of monomers. If the proportion of the monomer (a3) is 0.002% by weight or more, the viscosity of the hydrogel formed from the cationic group-containing copolymer is sufficient, and if it is 5% by weight or less, the hydrogel The touch is soft and slippery.

  As a preferred embodiment of the component (D), N, N-dimethylaminoethyl diethyl methacrylate sulfate / N, N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer represented by the following formula (V) may be mentioned. .

（式中、モル比でｘ／ｙ＝１／９〜５／５、（ｘ＋ｙ＋ｚ）／ｚ＝１／０．１〜１／０．００２である。）

(In the formula, x / y = 1/9 to 5/5 and (x + y + z) /z=1/0.1 to 1 / 0.002 in molar ratio.)

  As a commercial item, Sofcare KG-301W (made by Kao Corporation) and Sofcare KG-101W-E (made by Kao Corporation) are mentioned, for example.

  The content of the component (D) is preferably 0.01 to 3% by mass in the aqueous hair cleansing agent of the present invention, and particularly 0.03 to 1.8% by mass, from the viewpoint of imparting a sense of volume to the hair after drying. % Is more preferable, and 0.05 to 1% by mass is particularly preferable.

  In the aqueous hair cleansing agent of the present invention, the component (D) and the component (B) are used from the viewpoints of the effect of raising the root of the hair, imparting a sense of volume to the hair after drying, and difficulty in forming a hair bundle after drying. Is preferably (D) / (B) = 0.1-10, particularly preferably 0.3-5, and particularly preferably 0.3-3.

  In the aqueous hair cleansing agent of the present invention, the mass ratio of the component (B) to the component (C) is (B) / (C) = 0.1 to 12.5 from the viewpoint of the soft feeling of the hair after drying. And it is preferable that mass ratio of a component (D) and a component (B) is a combination of (D) / (B) = 0.1-10.

  The aqueous hair cleansing agent of the present invention contains water. As the water, purified water is preferably used. The water content is not particularly limited and can be appropriately adjusted according to the purpose of use. In particular, the water content is 35% by mass or more of the aqueous hair cleansing agent of the present invention, 99%. The mass% is preferably at most 45%, more preferably at least 45 mass% and at most 95 mass%.

  The aqueous hair cleansing agent of the present invention, in combination with the components (A) to (D), makes it easy to separate hair one by one in the drying process of wet hair, and raises the root of the hair, It can give a voluminous feel to the hair after drying. The reason for this is not necessarily clear, but by blending component (A), component (B), component (D), these components coacervate with component (C) when rinsing the aqueous hair cleanser, Furthermore, it is assumed that the component (C) tends to remain on the hair surface even after rinsing as a result of the complex that tends to float without adhering immediately to the hair surface. That is, it is considered that the component (C) tends to remain together with the coacervate on the hair surface, and the root of the hair after drying can be raised. Furthermore, the aqueous hair cleansing agent of the present invention can give a dry feeling to the hair after drying by combining the components (A) to (D).

  The aqueous hair cleansing agent of the present invention may contain other components as necessary in addition to the above.

(Fatty acid glycol ester)
The fatty acid glycol ester is represented by the following general formula (3).
R ¹² COO (CH ₂ CH ₂ O) _n A (3)
(Wherein R ¹² represents an alkyl group or alkenyl group having 11 to 21 carbon atoms, A represents a hydrogen atom or COR ¹³ (R ¹³ represents an alkyl group or alkenyl group having 11 to 21 carbon atoms), and n represents 1 Indicates the number of ~ 3.)

Among these, from the viewpoint of imparting smoothness to the hair after drying, R ¹² in the general formula (3) is preferably 13 to 19 carbon atoms, A is COR ¹³ , and R ¹³ is preferably 13 to 19 carbon atoms, R ¹² Is more preferably 16 to 18 carbon atoms, A is COR ¹³ , and R ¹³ is more preferably 16 to 18 carbon atoms. More specifically, mention may be made of ethylene glycol distearate.

  In order to further improve the cleaning performance, the aqueous hair cleansing agent of the present invention may contain a nonionic surfactant or an amphoteric surfactant. Moreover, in order to improve the finish after drying, a cationic surfactant and a cationized polymer can be further blended.

(Nonionic surfactant)
Nonionic surfactants include polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene sorbit fatty acid ester, polyoxyalkylene glycerin fatty acid ester, polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, polyoxyalkylene ether Examples include alkylene (hardened) castor oil, sucrose fatty acid ester, polyglycerin alkyl ether, polyglycerin fatty acid ester, fatty acid alkanolamide, alkyl glycoside, monoalkyl or monoalkenyl glyceryl ether, and the like.

Among these, polyoxyalkylene sorbitan fatty acid esters such as polyoxyethylene sorbitan fatty acid esters, polyoxyalkylene fatty acid esters such as polyoxyethylene (C _{8 to} C ₂₀ ) fatty acid esters, and polyoxyalkylenes such as polyoxyethylene hydrogenated castor oil (Hardened) castor oil and alkyl glycoside are preferred.

  Fatty acid alkanolamides are also suitable, which may be either monoalkanolamides or dialkanolamides, and those having an acyl group having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms are preferred. Further, those having a hydroxyalkyl group having 2 to 3 carbon atoms are preferred, for example, oleic acid diethanolamide, palm kernel oil fatty acid diethanolamide, coconut oil fatty acid diethanolamide, lauric acid diethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide. Coconut oil fatty acid monoethanolamide, lauric acid isopropanolamide, lauric acid monoethanolamide, and the like.

  Monoalkyl glyceryl ether or monoalkenyl glyceryl ether is also suitable, and the alkyl group or alkenyl group is preferably a linear or branched alkyl group having 4 to 10 carbon atoms, particularly 8 to 10 carbon atoms. Specifically, n-butyl group, isobutyl group, n-pentyl group, 2-methylbutyl group, isopentyl group, n-hexyl group, isohexyl group, n-heptyl group, n-octyl group, 2-ethylhexyl group, n -A decyl group, an isodecyl group, etc. are mentioned, Especially a 2-ethylhexyl group, an isodecyl group, and n-octyl group are preferable.

(Amphoteric surfactant)
Examples of amphoteric surfactants include betaine surfactants. Of these, betaine surfactants such as alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, and alkylhydroxysulfobetaine are more preferred, and alkylhydroxysulfobetaine is particularly preferred. The alkylhydroxysulfobetaine is preferably one having an acyl group having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms, and particularly preferably laurylhydroxysulfobetaine.

  These nonionic or amphoteric surfactants can be used alone or in combination of two or more in the aqueous hair cleanser. However, when the aqueous hair cleanser of the present invention is in the form of an aqueous liquid cleanser. In addition to the component (A), the use of monoalkyl glyceryl ether or monoalkenyl glyceryl ether or alkylhydroxysulfobetaine not only provides better foaming power, but also provides a good feeling after drying and a good feeling after drying. It is particularly preferable because it is easy to pass.

  The content of the nonionic or amphoteric surfactant is preferably 0.1 to 10% by mass in the aqueous hair cleansing agent of the present invention because a good foam increasing effect is obtained. From the above points, a range of 0.5 to 8% by mass, particularly 1 to 6% by mass is more preferable.

(Cationized polymer)
Next, as cationized polymers, cationized cellulose, cationized starch, cationized xanthan gum, diallyl quaternary ammonium salt / acrylamide copolymer, vinyl imidazolium trichloride / vinyl pyrrolidone copolymer, hydroxyethyl cellulose / dimethyl diallylammonium Chloride copolymer, vinyl pyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer, polyvinyl pyrrolidone / alkyl amino acrylate copolymer, polyvinyl pyrrolidone / alkyl amino acrylate / vinyl caprolactam copolymer, vinyl pyrrolidone / methacrylamidopropyl trimethyl chloride Ammonium copolymer, alkylacrylamide / acrylate / alkylaminoalkylacrylamide / polyethyleneglycol Catalytic compounds described in dimethyl methacrylate copolymer, adipic acid / dimethylaminohydroxypropylethylenetriamine copolymer (Sandos Corp., Cartaletin), JP-A-53-139734, JP-A-60-36407 Examples thereof include polymers.

  These cationized polymers may be used in combination of two or more, and from the point of smoothness from the time of shampooing to the time of rinsing, the content thereof is 0.01 to 3% by mass in the aqueous hair cleaning agent of the present invention. Is preferable, and 0.05 to 2% by mass is particularly preferable.

  In addition, the aqueous hair cleansing agent of the present invention can contain an oil as another conditioning agent. Oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, cycloparaffin; oils and fats such as castor oil, cacao oil, mink oil, avocado oil, olive oil, sunflower oil, coconut oil; beeswax, whale wax, Waxes such as lanolin and carnauba wax; higher alcohols such as cetyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, glycerin, myristyl alcohol, behenyl alcohol, cetostearyl alcohol; isopropyl palmitate, isopropyl myristate, Octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononona Ester oils such as isononyl acid and tridecyl isononanoate; higher fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearic acid, isopalmitic acid; Examples include stearyl glyceryl ether and polyoxypropylene butyl ether. Of these, higher alcohols and fats and oils are preferable, and myristyl alcohol, cetyl alcohol, stearyl alcohol, sunflower oil, and camellia oil are particularly preferable. These oil agents can be used alone or in combination of two or more, and the content thereof is preferably 0.1 to 10% by mass in the aqueous hair cleansing agent of the present invention, and more preferably 0.2 to 5%. % By mass, particularly 0.3 to 2% by mass is preferred.

  The aqueous hair cleansing agent of the present invention may contain a viscosity modifier. Viscosity modifiers include hydroxyethylcellulose, methylcellulose, polyethylene glycol, polypropylene glycol, ethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, ethanol, benzyl alcohol, benzyloxyethanol, phenoxyethanol, clay minerals, salts (sodium chloride, chloride) Ammonium, sodium citrate, etc.). Among them, dipropylene glycol, benzyl alcohol, ethanol, polypropylene glycol, sodium chloride, and sodium citrate are preferable. Two or more types of viscosity modifiers may be used in combination, and the amount used thereof is preferably 0.01 to 5% by mass in the aqueous hair cleanser of the present invention from the viewpoint of the amount of foam and foam quality, and more preferably 0. 0.05 to 4% by mass, particularly 0.1 to 3% by mass is preferable.

  In the aqueous hair cleansing agent of the present invention, other components generally used in the aqueous hair cleansing agent can be appropriately blended depending on the purpose. Such components include, for example, anti-dandruff agents, vitamin agents, bactericides, anti-inflammatory agents, antiseptics, chelating agents, glycylglycine, lanolinic acid, humectants such as glycerin, sorbitol, panthenol, dyes, pigments, etc. A colorant extract of Eucalyptus, a shell or shell with a pearl layer, or a hydrolyzate thereof, a protein obtained from honey, royal jelly, silk or a hydrolyzate thereof, obtained from a legume seed Extract containing protein, extract of ginseng, rice germ extract, hibamata extract, aloe extract, moon peach leaf extract, lotus flower extract, licorice extract, chlorella extract; pearl such as titanium oxide Perfume; Dye; Ultraviolet absorber; Antioxidant.

  The aqueous hair cleansing agent of the present invention has a pH of 2 to 6 when applied to hair (diluted 20 mass times with water, 25 ° C.) from the viewpoint of improving the gloss of the hair and improving the volume of the hair after drying. It is preferable that the pH is 3 to 5, particularly 3 to 4.5. As the pH adjuster, it is preferable to use an organic acid, particularly α-hydroxy acid, and malic acid, lactic acid, and glycolic acid are particularly preferable. Two or more of these organic acids may be used in combination, and the amount used is 0.01 to 5% by mass in the aqueous hair cleansing agent of the present invention in terms of foam quality and improvement in hair flexibility during hair washing. Further, 0.1 to 3% by mass, particularly 0.3 to 2% by mass is preferable. Further, as other pH adjusting agents, bases such as sodium hydroxide, potassium hydroxide, ammonium chloride may be used in combination with these organic acids.

  The aqueous hair cleansing agent of the present invention can be made into a desired dosage form such as an aqueous solution, an ethanol solution, an emulsion, a suspension, a gel, a liquid crystal, a solid, an aerosol, etc., and is a liquid using water or a lower alcohol, particularly water as a solvent. Are preferred. More specifically, it can be applied to, for example, hair rinse, hair conditioner, hair treatment, hair pack, hair cream, conditioning mousse, hair mousse, hair spray, shampoo, leave-on treatment, and the like. It is particularly suitable as a dosage form to be used after washing away shampoo or the like.

  By using the aqueous hair cleansing agent of the present invention, it is possible to realize a treatment method for raising the root of the hair and imparting a volume to the hair.

  It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

  EXAMPLES Next, although an Example and a comparative example demonstrate this invention further more concretely and in detail, this invention is not limited by this Example.

(Examples and Comparative Examples)
Aqueous hair cleansing agents shown in Table 1 were prepared and evaluated by the following evaluation methods. The results are shown in Table 1. In addition, pH is a value in 25 degreeC at the time of diluting 20 mass times with water.

<Evaluation method>
(1) Ease of hair dispersion in a wet state A human hair bundle having a length of 25 cm, a width of 5.5 cm, and a weight of 10 g is lightly rinsed with warm water at 40 ° C., and then excess water is removed. It was fully whipped with 5 g of aqueous hair cleanser for about 30 seconds. At that time, sensory evaluation was performed on the ease of dispersal of hair based on the following five-step criteria. The evaluation was performed by five people, and the integrated value was obtained.
5: Easy to disperse 4: Slightly easy to disperse 3: Feeling normal 2: Not very dispersible 1: Not disjoint

(2) Dry feeling after drying After treatment under the same conditions as in (1) above, the human hair bundle was dried with a dryer, and the dry feeling of the hair after being sufficiently dried was subjected to sensory evaluation based on the following five-step criteria. . The evaluation was performed by five people, and the integrated value was obtained.
5: Slightly smooth 4: Slightly smooth 3: Feels normal 2: Slightly not very smooth 1: Not smooth

(3) Hardness of hair bundle after drying After treatment under the same conditions as in (1) above, sensory evaluation of the difficulty of hair bundle after drying the human hair bundle was performed according to the following five-step criteria. The evaluation was performed by five people, and the integrated value was obtained.
5: Difficult to become a hair bundle 4: Difficult to become a hair bundle 3: Feeling normal 2: Become a little hair bundle 1: Become a hair bundle

(4) Soft feeling after drying After processing on the same conditions as said (1), the soft feeling after drying a human hair bundle was sensory-evaluated on the following 5-step criteria. The evaluation was performed by five people, and the integrated value was obtained.
5: Feels soft 4: Slightly soft 3: Feels normal 2: Does not feel so soft 1: Does not feel soft

(5) Volume-up effect after drying After processing on the same conditions as said (1), the volume-up effect after drying was sensory-evaluated on the following 5-step criteria. The evaluation was performed by five people, and the integrated value was obtained.
5: Volume increase effect 4: Slight volume increase effect 3: Normal feel 2: No volume increase effect 1: Volume increase effect

(6) Rise of hair root after drying The hair rise was evaluated as follows.
<Create model hair bundle>
(material)
Sample hair: 21 European Blond hairs (length 22-23 cm, average diameter 78.2 μm (n = 15; measured with laser outer diameter measuring device) purchased from DEMEO BROTHERS Inc.)
・ Silicon microtube: Inner diameter x Outer diameter (mm) 0.4 x 0.5 Length 1.5 cm x 7 (Part No. 1-8194-04 ASONE CORPORATION)
・ Steel wire (or stainless steel wire): Diameter 1.5mm, Length 2.0cm x 7 ・ Cloth adhesive tape: 1cm x 3cm (NICHIBAN No.102N)
-Vinyl tape: 0.6 cm x 1.0 cm (Yamato Co., Ltd. NO200-19-5)
・ Nylon Tegs: Appropriate amount of 0.18mm in diameter (Harris Leica Honpo)

FIG. 1 is a diagram schematically showing a cross section of the model hair bundle 10. A model hair bundle 10 as shown in FIG. 1 was prepared using the above (material).
First, three sample hairs with the root direction aligned on a 0.5 mm diameter (0.4 mm inner diameter) silicon tube cut to a length of 1.5 cm are passed from the root part and the ends are fastened together with each silicon tube. Silicon tube 1 was prepared. Similarly, seven sets of silicon tubes 1 were prepared, and one set of the silicon tubes 1 was wrapped with a vinyl tape 2 to be thickened to form a core portion. Next, a steel wire 3 (or a stainless steel wire) having a length of 2 cm and a diameter of 1.5 mm is prepared, and the remaining six sets of silicon tubes 1 are arranged between the six steel wires 3, with the core portion at the center. The steel wire 3 and the silicon tube 1 were bundled, and the whole was wound using the cloth adhesive tape 4. Further, a teg 5 (see FIG. 2) was wound around the cloth adhesive tape 4 to create a model hair bundle 10.

<Evaluation method>
A method for measuring the amount of rising hair will be described with reference to the model hair bundle 10 shown in FIGS.
An aqueous solution in which the hair cosmetic was diluted 20 times with ion-exchanged water was used as a sample aqueous solution.
As shown in FIG. 2, using the fixture 6, the model hair bundle 10 is fixed so that the sample hair faces upward, and 5 ml of the sample aqueous solution is dropped near the apex of the bent portion of the hair bundle of the sample hair. It was sufficiently rinsed with 5 ml of ion-exchanged water by the same dropping method, and was sufficiently naturally dried by standing for 10 minutes at room temperature (25 ° C.) and 50 (± 10) RH%. The bent part of the hair bundle before and after drying was photographed with a digital camera, and the change was recorded.
As shown in FIG. 3, the maximum value of the height of the bent portion of the hair bundle immediately after rinsing is (h1), and the maximum value of the height of the bent portion of the hair bundle after drying is set high as shown in FIG. The rising amount (Δh = h2−h1) was used as (h2).

  From Table 1, in the compositions of the examples, the hairs in the wet state are easily separated one by one, and after drying, the hair is dried, and the roots of the dried hair are raised to increase the volume of the hair after drying. It turned out that the effect was excellent.

In addition, the raw material name and manufacturer of each component in a table | surface are as follows, respectively.
・ Polyoxyethylene alkyl ether ammonium sulfate (raw material name) Emar 125A (25%) (Manufacturer) Kao Corporation ・ Cationized guar gum (raw material name) Jaguar C-14SK (Manufacturer) Rhodia ・ Cationized tara gum (raw material name) Katinaru CTR -100 (Manufacturer) Toho Chemical Industry Co., Ltd., Cationized Hydroxycellulose (Raw Material) Katachiro M-80 (Manufacturer) Kao Corporation, Silicone Elastomer A
(Raw material) Silicone BY29-119 (Manufacturer) Toray Dow Corning Co., Ltd. Silicone elastomer B
(Raw material name) RX-169 DCT (Manufacturer) Toray Dow Corning Co., Ltd. N, N-dimethylaminoethyl methacrylate diethyl sulfate / N, N-dimethylacrylamide / polymethacrylic acid polyethylene glycol copolymer (Raw material name) Sofcare KG-101W-E (Manufacturer) Kao Corporation, Lauryl Hydroxysulfobetaine (Ingredient name) Amhitoal 20HD (30%) (Manufacturer) Kao Corporation, Isodecyl Glyceryl Ether (Ingredient name) Penetol GE-ID (Manufacturer) Kao Propylene trimer derived from alcohol converted by oxo method, polyoxyethylene (6) stearyl ether (raw material name) Emulgen 306L (manufacturer) Kao Corporation, ethylene glycol dialchelate (raw material name) pearl concentrate A-M2 (manufacturer) Kao-ethylene glycol distearate (material name) Pegnol EDS-98K (manufacturer) manufactured by Toho Chemical Industry Co., Ltd. Polypropylene glycol (material name) Adeka Car Pole DL-80 (manufacturer) ADEKA Corporation

(Coacervate observation experiment)
The coacervate was observed using the aqueous hair cleansing agents obtained in Example 1, Comparative Example 1 and Comparative Example 5.

<Evaluation method>
First, 10 g of the aqueous hair cleansing agent obtained in Example 1, Comparative Example 1 and Comparative Example 5 was added to each glass bottle (capacity: 110 ml, trunk diameter × height (mm) 51.5 × 95.5). Further, 90 g of water was added to make the total amount 100 g.
Next, a pencil mixer (motor rotation speed: no load 7000 rpm, motor torque: 8 g / cm ² , motor starting torque: 28 g / cm ² , body size: φ20 × 172 mm, shaft size: shaft / φ3 mm, tip / φ8 mm, total length / 115mm, shaft material: shaft / stainless steel (SUS304 fluororesin coating), tip / PCTFE (fluororesin)), stirred for 30 seconds, left as it is, and allowed to stand for 50 minutes to observe the state in each glass bottle The results are shown in FIG.

  As shown in FIG. 5, the white powder visible in each glass bottle is coacervate and the silicone elastomer incorporated therein. Example 1 is a complex of components (A) to (D), Comparative Example 1 is a complex of components (A) to (C), and Comparative Example 5 is a component (A), (C), It is a complex of cationized hydroxyethyl cellulose. From FIG. 5, in Example 1, it was observed that it was bulky compared with the comparative example 1 and the comparative example 5, and it was a state which white powder did not settle easily. Thereby, in the aqueous hair cleansing agent of Example 1, since coacervate and a silicone elastomer are in the state which adheres to hair easily even during hair washing, it is thought that it remains on the hair surface easily.

1 Silicone tube 2 Vinyl tape 3 Steel wire 4 Cloth adhesive tape 5 Tegs 6 Fixture 10 Model hair bundle

Claims (8)

The following components (A) to (D):
(A) Anionic surfactant (B) Cationized galactomannan (C) Elastic solid particles (D) Copolymerizing a monomer mixture containing the following monomers (a1), (a2) and (a3) An aqueous hair cleanser comprising a cationic group-containing copolymer obtained by:
Monomer (a1): at least one kind of hydrophilic nonionic group-containing vinyl monomer represented by formula (I) or (II)

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents a hydrogen atom, a linear or branched alkyl group or alkenyl group having 1 to 4 carbon atoms, and R ³ represents 1 to carbon atoms. 4 linear or branched alkyl groups or alkenyl groups.)

(In the formula, R ¹ represents a hydrogen atom or a methyl group, A ¹ and A ² are the same or different, and a group represented by — (CH ₂ ) _n — (n represents an integer of 2 to 6). shows, B is -O- or -CH ₂ - shows a group).
Monomer (a2): at least one cationic group-containing vinyl monomer represented by the general formulas (III) and (IV)

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ⁴ and R ⁵ are the same or different and represent an alkyl group or an alkenyl group having 1 to 4 carbon atoms, and R ⁶ represents a hydrogen atom or 1 to carbon atoms. 4 represents an alkyl group, Y represents —O—, —NH—, —CH ₂ — or —O—CH ₂ CH (OH) — group, Z represents 1 to 4 carbon atoms (Y is —CH _2). -Represents a linear or branched alkylene group having 0 to 3 carbon atoms, and X represents an acid conjugate base.

(In the formula, R ⁷ and R ⁸ are the same or different and each represents a hydrogen atom or a methyl group; R ⁹ and R ¹⁰ are the same or different and each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; Indicates a conjugate base.)
Monomer (a3): a crosslinkable vinyl monomer having two or more reactive unsaturated groups   The aqueous hair cleanser according to claim 1, wherein the particle size of component (C) is 0.01 to 100 µm. The component (D) is an N, N-dimethylaminoethyl diethyl methacrylate sulfate / N, N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer represented by the following formula (V): An aqueous hair cleanser as described in 1.

(In the formula, x / y = 1/9 to 5/5 and (x + y + z) /z=1/0.1 to 1 / 0.002 in molar ratio.)   The aqueous hair cleanser according to any one of claims 1 to 3, wherein the component (C) comprises a methylpolysiloxane having a crosslinked structure.   The aqueous hair cleanser according to any one of claims 1 to 4, wherein the mass ratio of component (B) / component (C) is 0.1 to 12.5.   The aqueous hair cleanser according to any one of claims 1 to 5, wherein the mass ratio of component (D) / component (B) is 0.1 to 10.   The aqueous hair cleansing agent according to any one of claims 1 to 6, comprising 0.01 to 5% by mass of the component (C). A treatment method for raising the root of the hair and adding volume to the hair,
A treatment method using the aqueous hair cleanser according to any one of claims 1 to 7.

Images