JP7175440B2 - hair cleanser - Google Patents

Description

The present invention relates to a hair cleanser.

A hair cleanser generally contains a cleansing component and a conditioning component.
Conventionally, anionic surfactants such as polyoxyalkylene alkyl ether sulfate (AES) and amphoteric surfactants such as lauramidopropyl betaine have been used as cleaning components. Cationic polymer compounds such as cationized cellulose and cationized guar gum are used as conditioning ingredients.
By appropriately combining these cleansing components and conditioning components, it is possible to balance detergency, rinsing performance, texture after drying, and the like.

Hair cleansers are required to have performances that meet the tastes of consumers. For example, especially women with long hair prefer the feeling that fingers can easily pass through the hair during rinsing and the hair does not get tangled easily.
On the other hand, it is effective to select an amino acid-based surfactant from the viewpoint of improving the rinsing performance.
Patent Document 1 discloses, as a specific example, a detergent composition containing an anionic surfactant containing an N-acylamino acid-based surfactant and cationized cellulose. According to the detergent composition described in Patent Document 1, smoothness during rinsing is improved by containing an N-acyl amino acid-based surfactant.

A hair cleanser containing a cleansing component and a conditioning component is diluted with water by lathering it on wet hair. After that, during the process of rinsing with running water, a complex (coacervate) of the cleansing component and the conditioning component is formed (coacervation). It is said that this coacervate contributes to the rinsing performance.

JP 2020-059848 A

A hair cleanser to which a composition containing an amino acid-based surfactant as a main cleansing component and a cationized cellulose or a cationized guar gum as a conditioning component is applied has a coacervate content lower than that in the case of using AES as a cleansing component. A large amount of product is produced, and when rinsing, it feels very smooth on the fingers. In addition, such a hair cleanser has a high product appealing effect due to the high blending ratio of the amino acid-based component.

On the other hand, hair cleansers that contain amino acid-based surfactants as their main cleansing ingredients tend to produce a large amount of coacervate, and because of their good affinity for hair and scalp, they adhere excessively to hair and scalp. Cheap. Therefore, depending on the difference in hair quality or skin quality, there are users who feel stickiness after rinsing and lack of refreshing feeling.
However, when other anionic surfactants such as AES are used in combination, the blending ratio of amino acid-based components in the composition becomes low. In addition, when the blending amount of the conditioning component is reduced, the ease of finger combing felt during rinsing is weakened.

The present invention has been made in view of the above circumstances, and provides a hair cleanser which is excellent in finger-passability during rinsing and reduces stickiness without lowering the mixing ratio of amino acid-based components in the cleansing ingredients. An object of the present invention is to provide an agent.

The present inventors investigated a composition containing an amino acid-based anionic surfactant as a cleansing ingredient and conventionally-used cationized cellulose or cationized guar gum as a conditioning ingredient. As a result of these studies, it was found that by adding cationized starch as a conditioning component to the composition described above, the amount of coacervate produced can be controlled, and the sensation during rinsing can be greatly changed to produce a refreshing feeling on the scalp. The inventors have found that and completed the present invention.
That is, in order to solve the above problems, the present invention employs the following configurations.

[1] Component (A): an amino acid-based surfactant, and component (P): a cationic polymer compound, wherein the component (P) consists of component (P1): cationized cellulose and cationized guar gum. A hair cleanser comprising at least one selected from the group and (P2) component: cationized starch.

[2] The hair cleanser of [1], which further contains an amine oxide.

[3] The ratio of the (P1) component and the (P2) component is 3/7 to 9/1 as a mass ratio represented by (P2) component/(P1) component, [1] or The hair cleanser according to [2].

[4] The hair cleanser according to any one of [1] to [3], wherein the content of component (A) is 1.5 to 20% by mass.

[5] The hair cleanser according to any one of [1] to [4], wherein the content of component (P) is 0.2 to 1.5% by mass.

ADVANTAGE OF THE INVENTION According to the present invention, it is possible to provide a hair cleansing agent which is excellent in finger passability during rinsing and has reduced stickiness without lowering the mixing ratio of amino acid-based components in the cleansing ingredients.

Measurement results of combing load of hair in a wet state after rinsing (Wet-combability) were performed on hair tresses for normal hair using each of the hair detergents of Comparative Examples 1, 3, and 2. ), and the measurement results of the combing load of the hair in the dry state after rinsing (Dry-Combability). Using each of the hair cleansers of Comparative Example 1, Example 3, and Comparative Example 2, measurement results of the combing load of hair in a wet state after rinsing (Wet-combability) were performed on hair tresses for damaged hair. ), and the measurement results of the combing load of the hair in the dry state after rinsing (Dry-Combability). 4 is a graph showing the change in the amount of coacervate produced with respect to the dilution ratio of each hair cleanser of Comparative Examples 1, 3 and 2. FIG. 1 is a photograph of a diluted solution obtained by diluting each hair cleanser of Examples and Comparative Examples by 50 times with water. From the left side, the diluted solutions of the hair cleansing agents of Comparative Example 1, Example 1, Example 2, Example 3, Example 4, and Comparative Example 2 are photographed. Using each of the hair cleansers of Examples 5 to 8 and Comparative Examples 3 to 4, measurement results of the combing load of hair in a wet state after rinsing (Wet-combability) were performed on hair tresses for damaged hair. ), and the measurement results of the combing load of the hair in the dry state after rinsing (Dry-Combability). 1 is a photograph showing the appearance of each hair cleanser of Examples 9 and 10 that had been stored in a refrigerator at a temperature of 2° C. for 45 days.

(Hair cleanser)
A hair cleanser according to one embodiment of the present invention contains component (A): an amino acid-based surfactant, component (P): a cationic polymer compound, and, if necessary, other components.

In the present invention, the "hair cleanser" is a so-called shampoo, which is used to cleanse the hair and scalp.

<(A) component: amino acid-based surfactant>
Component (A) includes, for example, those formed by acylation of long-chain fatty acids and amino acids, that is, those having counter ions in long-chain acyl amino acids.

The hydrocarbon group in the long-chain fatty acid preferably has, for example, 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms. Further, the long-chain fatty acid may be saturated fatty acid or unsaturated fatty acid, and may be linear or branched.
Examples of the long-chain fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, isostearic acid, palmitic acid, oleic acid, linoleic acid, behenic acid, coconut oil fatty acid, and palm fatty acid. One of these may be used, or two or more may be mixed and used. Among these, coconut oil fatty acid, lauric acid, and myristic acid are preferable because they foam particularly well.

Examples of the amino acids include glycine, alanine, glutamic acid, aspartic acid, arginine, and isomers thereof.

(A) Component is in the form of a salt. Examples of the salt form here include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; organic amines such as ammonia, monoethanolamine, diethanolamine and triethanolamine; arginine and lysine. and organic salts of basic amino acids such as. One of these may be used, or two or more may be mixed and used. Among these, alkali metal salts and organic amines are preferable, and sodium salts and triethanolamine salts are more preferable, from the viewpoint of good foamability and solubility.

Component (A) specifically includes sodium lauroyl glutamate, sodium myristoyl glutamate, sodium palmitoyl glutamate, sodium cocoyl glutamate, potassium cocoyl glutamate, triethanolamine cocoyl glutamate, sodium lauroyl aspartate, acyl (having 12 and 14 carbon atoms), Mixture) triethanolamine aspartate, N-lauroyl-N-methyl-β-alanine sodium, N-lauroyl-N-methyl-β-alanine triethanolamine, N-myristoyl-β-alanine salt, N-lauroyl sarcosine salt, N-lauroyl-N-ethylglycine salt, coconut fatty acid-L-arginine soap.

Commercially available examples of the component (A) that can be used in the present embodiment include Amino Surfact (registered trademark) series, Amino Former (registered trademark) series (manufactured by Asahi Kasei Finechem Co., Ltd.); Amisoft (registered trademark) series. , Amilite (registered trademark) series, Aminosoap (registered trademark) series (manufactured by Ajinomoto Healthy Supply Co., Ltd.); Enagicol L-30AN, Enagicol L-30ANT (manufactured by Lion Corporation), and the like.

(A) component can be used individually by 1 type or in combination of 2 or more types as appropriate.
The content of component (A) in the hair cleanser of the present embodiment is preferably 1.5 to 20% by mass, more preferably 5 to 15% by mass, relative to the total mass (100% by mass) of the hair cleanser. more preferred.
If the content of component (A) is at least the lower limit of the above preferred range, foaming will be better, and if it is below the upper limit of the above preferred range, the viscosity of the hair cleanser will be too high. becomes easier to suppress.

<(P) Component: Cationic Polymer Compound>
In the hair cleansing agent of the present embodiment, the (P) component includes (P1) component: at least one selected from the group consisting of cationized cellulose and cationized guar gum, and (P2) component: cationized starch. include.

<<(P1) component>>
The (P1) component is at least one selected from the group consisting of cationized cellulose and cationized guar gum.
As component (P1), cationized cellulose and cationized guar gum, which are usually blended in shampoos, can be used, and preferred examples include those in which amino groups or ammonium groups are introduced into the respective polysaccharide skeletons.

Specific examples of cationized cellulose include O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride.
Commercially available examples of cationized cellulose that can be used in the present embodiment include DOCQUAT (registered trademark) 10 and DOCQUAT (registered trademark) 10V (manufactured by DOC Japan Co., Ltd.); Leoguard series (manufactured by Lion Corporation); Ucare Polymer series (manufactured by Dow Chemical Co.); Catinal HC-100 (manufactured by Toho Chemical Industry Co., Ltd.);

The weight average molecular weight (Mw) of the cationized cellulose (measured by gel permeation chromatography) is not particularly limited, but is preferably 100,000 or more and 5,000,000 or less, more preferably 600,000 or more and 1,500,000 or less.

Cationized guar gum specifically includes chloride O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum.
Commercially available examples of cationized guar gum that can be used in the present embodiment include DOCGUM (registered trademark) CG-L, DOCGUM (registered trademark) CG-M (manufactured by DOC Japan Co., Ltd.); Kyo Food & Chemical Co., Ltd.); JAGUAR C-13S, JAGUAR C-14S, JAGUAR EXCEL, JAGUAR C-162 (manufactured by Solvay SA) and the like.

The weight average molecular weight (Mw) of the cationized guar gum (measured by gel permeation chromatography) is not particularly limited, but is preferably 100,000 to 5,000,000, more preferably 1,500,000 to 4,000,000.

(P1) component can be used individually by 1 type or in combination of 2 or more types as appropriate.
The content of component (P1) in the hair cleanser of the present embodiment is preferably 0.02 to 0.75% by mass, more preferably 0.05 to 0.05% by mass, relative to the total mass (100% by mass) of the hair cleanser. 0.5% by mass is more preferred.
When the content of the component (P1) is at least the lower limit of the preferred range, the smoothness of fingers during rinsing is improved. It becomes easier to obtain the combined effect of

<<(P2) component>>
The (P2) component is cationic starch.
The (P2) component preferably includes starch into which an amino group or an ammonium group has been introduced. Examples of starch that constitutes cationized starch include potato starch, tapioca starch, corn starch, wheat starch, and the like.

The weight average molecular weight (Mw) of component (P2) (measured by gel permeation chromatography) is not particularly limited, but is preferably 2 million or more and 10 million or less, more preferably 3 million or more and 9 million or less.

Specific examples of the (P2) component include hydroxypropyltrimonium starch chloride and hydroxypropyl starch oxide PGtrimonium chloride.
Commercially available examples of cationic starch that can be used in this embodiment include DOCSTARCH® CP, DOCSTARCH® CP PF, DOCSTARCH® CP Plus, DOCSTARCH® CP-75 ( DOC Japan Co., Ltd.) and the like.

(P2) component can be used individually by 1 type or in combination of 2 or more types as appropriate.
The content of component (P2) in the hair cleanser of the present embodiment is preferably 0.1 to 1.35% by mass, more preferably 0.2 to 1.35% by mass, relative to the total mass (100% by mass) of the hair cleanser. 0.75% by mass is more preferred.
When the content of component (P2) is at least the lower limit of the preferred range, stickiness during rinsing tends to be reduced, and when it is at most the upper limit of the preferred range, the content of component (P1) It becomes easier to obtain the combined effect.

In the hair cleanser of the present embodiment, the (P) component may contain a cationic polymer compound (hereinafter referred to as "(P3) component") other than the (P1) component and the (P2) component.
The (P3) component can be a cationic polymer compound other than the (P1) component and the (P2) component, which is usually added to shampoos as a conditioning component.
Component (P3) includes, for example, dimethyldiallylammonium chloride homopolymer, copolymer of dimethyldiallylammonium chloride and acrylamide, copolymer of dimethyldiallylammonium chloride, acrylamide and acrylic acid, methacryloylethyltrimethylammonium chloride and N A copolymer with -(2-hydroxyethyl)acrylamide and the like can be mentioned.

The content of component (P) in the hair cleansing agent of the present embodiment is preferably 0.2 to 1.5% by mass, more preferably 0.2 to 1.5% by mass, relative to the total mass (100% by mass) of the hair cleansing agent. 1% by mass is more preferred.
When the content of the component (P) is at least the lower limit of the preferred range, the rinsing performance such as finger passability is sufficiently exhibited. is maintained well, and it becomes easy to suppress the viscosity of the hair cleanser from becoming too high.

In the hair cleansing agent of the present embodiment, the ratio of the total of the (P1) component and the (P2) component to the (P) component is It is preferably 50% by mass or more, more preferably 75% by mass or more, still more preferably 90% by mass or more, and may be 100% by mass.

In the hair cleansing agent of the present embodiment, the ratio of the (P1) component and the (P2) component is 5/5 to 9/1 as a mass ratio represented by (P2) component/(P1) component. , more preferably 5/5 to 8/2, and more preferably more than 5/5 and 7/3 or less.
When the mass ratio represented by component (P2)/component (P1) is equal to or higher than the lower limit of the preferred range described above, the combined effect of component (P1) and component (P2) is likely to be obtained, and the rinsing time is reduced. It is possible to achieve both good spreading and reduction of stickiness. On the other hand, when it is at most the upper limit of the above preferable range, it is easy to pass through the fingers during rinsing, and the feeling that the hair does not get tangled easily can be enhanced.

Alternatively, as another aspect, the ratio of the (P1) component and the (P2) component in the hair cleansing agent of the present embodiment is expressed as a mass ratio represented by (P2) component/(P1) component, It may be 2/8 to 9/1, or 3/7 to 9/1.
As described later, in addition to the components (A), (P1) and (P2), when an amine oxide is used in combination, the (P1) component and the (P2) component are used in the hair cleansing agent of the present embodiment. ) component is preferably 3/7 to 9/1, more preferably 3/7 to 8/2, as a mass ratio represented by component (P2)/component (P1). , 4/6 to 8/2.
When the mass ratio represented by component (P2)/component (P1) is equal to or higher than the lower limit of the preferred range described above, the combined effect of component (P1) and component (P2) is likely to be obtained, and the rinsing time is reduced. It is possible to achieve both good spreading and reduction of stickiness. On the other hand, when it is at most the upper limit of the above preferable range, it is easy to pass through the fingers during rinsing, and the feeling that the hair does not get tangled easily can be enhanced.

<Other ingredients>
The hair cleansing agent of the present embodiment may contain other components as necessary in addition to the components (A) and (P).
As the other ingredients, ingredients that are blended in ordinary hair cleansing agents can be appropriately used as long as they do not impair the effects of the present invention. Such other components include, for example, solvents, anionic surfactants other than the component (A), amphoteric surfactants, nonionic surfactants, cationic surfactants, polymers other than the component (P), fragrances, moisturizers, and wetting agents. agents, pH adjusters, solubilizers, viscosity adjusters, bactericides, preservatives, chelating agents, pigments, and various appealing ingredients.

Examples of anionic surfactants other than component (A) include alkylsulfonates, alkylsulfates, polyoxyalkylene alkyl ether sulfates, alkylbenzenesulfonates, α-olefinsulfonates, and higher fatty acid estersulfonates. , N-acyl-N-methyl taurine salts, alkyl ether acetates, polyoxyalkylene alkyl ether acetates, fatty acid soaps, alkyl phosphate ester salts and the like.
Salts include, for example, sodium salts, ammonium salts, triethanolamine salts and the like.

Amphoteric surfactants include, for example, N-decyl betaine, cetyl betaine, stearyl betaine, alkyl betaine surfactants such as coconut oil alkyl betaine, lauryldimethylaminoacetic acid betaine; coconut oil fatty acid amidopropyl betaine, lauramidopropyl Betaine, amidobetaine surfactants such as betaine, lauramidomethylbetaine, myristateamidemethylbetaine, palmitamidemethylbetaine, stearamidemethylbetaine; coconut oil alkyldimethylsulfopropylbetaine, stearyldimethylsulfopropylbetaine, coconut oil Alkylaminomethylsulfopropylbetaine, stearylaminomethyldimethylsulfopropylbetaine, myristylaminomethyldimethylsulfopropylbetaine and other sulfobetaine-based surfactants; laurylhydroxysulfobetaine, laurylaminomethyl-bis-(2-hydroxyethyl)-sulfo Hydroxysulfobetaine surfactants such as propylbetaine; 2-coconut oil alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine, 2-lauryl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, etc. imidazolinium betaine-based surfactants; amidosulfobetaine-based surfactants; and phosphobetaine-based surfactants.

Examples of nonionic surfactants include amine oxides, polyoxyalkylene hydrogenated castor oils, fatty acid alkanolamides, fatty acid alkylalkanolamides, polyoxyalkylene fatty acid alkanolamides, alkanol glucamides, alkylpolyglucosides, alkylglyceryl ethers, and polyhydric alcohols. Examples include fatty acid esters, sugar alcohol fatty acid esters, and the like.
Among these, it is preferable to use an amine oxide from the viewpoint of improving the feel of rinsing, improving the ability to solubilize the detergent composition, and increasing the viscosity of the detergent.

Amine oxides include, for example, alkylamine oxides having 12 to 18 carbon atoms. Specific examples of amine oxides include lauryldimethylamine oxide, stearyldimethylamine oxide, oleyldimethylamine oxide, dihydroxyethyllaurylamine oxide, coconut oil alkyldimethylamine oxide, lauramidopropylamine oxide, and myristamidopropylamine oxide. be done.
Amine oxide can be used individually by 1 type or in combination of 2 or more types as appropriate.
When the hair cleansing agent contains an amine oxide, the content of the amine oxide in the hair cleansing agent is preferably 1 to 12% by mass with respect to the total mass (100% by mass) of the hair cleansing agent. 5 to 10% by mass is more preferable, and 2 to 7.5% by mass is even more preferable.
When the content of the amine oxide is at least the lower limit of the above preferred range, the rinsing feel, thickening effect, detergent solubilization ability, and foaming performance are improved, and the content is at most the upper limit of the above preferred range. When it is, it becomes easy to suppress that the viscosity of the cleansing agent for hair becomes too high.

Viscosity modifiers include, for example, polyoxyethylene sorbitan triisostearate, polyoxyethylene cetostearyl hydroxymyristyrene ether, and polyoxyethylene cetyl stearyl diether.

The hair cleansing agent of the present embodiment can be produced, for example, by mixing components (A) and (P), other components, and the remaining solvent, and dissolving each component in the solvent. .
Component (A) may be mixed in the preparation of the hair cleanser by neutralizing it with an alkali in advance, or by adding an alkali during the production process using raw materials in an acid form. , may be in the form of a neutralized salt.

In the hair cleansing agent of the present embodiment, the pH of the solution obtained by dissolving the component (A) and the component (P) in a solvent at 25°C is preferably in the range of 4.5 to 8.0, for example. is more preferably in the range of 5.0 to 7.0.
The pH of the hair cleanser was measured using the method stipulated in the general test method of the Standards for Cosmetic Ingredients (Second Edition). can be measured by reading

In the hair cleansing agent of the present embodiment, the viscosity of the solution obtained by dissolving the components (A) and (P) in a solvent at 25° C. is preferably in the range of 500 to 3000 mPa·s, and the viscosity is preferably 1000. More preferably, it is in the range of up to 2500 mPa·s.
The viscosity of the hair cleansing agent was measured by rotor No. 2 with a BM viscometer in accordance with Cosmetic Ingredients Standard Method 2. 4 (No. 3 for low viscosity) is used, and the viscosity is calculated from the reading after rotating the rotor at 6 rpm for 1 minute.
In practical use, the viscosity of the hair cleanser may be set to a higher viscosity by appropriately adding a viscosity modifier, for example, depending on the purpose.

Alternatively, as another aspect, in the hair cleansing agent of the present embodiment, a solution obtained by dissolving the component (A), the component (P) and the amine oxide in a solvent has a pH at 25°C of, for example, 4.5 to 8. 0.0, more preferably 5.0 to 7.0, and even more preferably 5.5 to 7.0.
Further, in the hair cleanser of the present embodiment, the viscosity of the solution obtained by dissolving the component (A), the component (P) and the amine oxide in a solvent at 25°C is, for example, in the range of 500 to 7000 mPa·s. is preferred, and those having a viscosity in the range of 700 to 5000 mPa·s are more preferred.

The hair cleanser of the present embodiment described above employs component (A) as a cleansing component: an amino acid-based surfactant, and component (P1) as a conditioning component: selected from the group consisting of cationized cellulose and cationized guar gum. and (P2) component: cationized starch are used in combination.
In the hair cleanser of the present embodiment, the rinsing performance is improved by combining the component (A) and the component (P1) with the component (P2): cationic starch as a conditioning component. are reforming. In other words, it has excellent finger passability during rinsing and reduced stickiness.
In addition, in the hair cleanser of the present embodiment, the rinsing performance can be improved without the combined use of other anionic surfactants such as AES. There is no

Furthermore, the hair cleanser of this embodiment is suitable for users who want to use an amino acid-based shampoo, but who have sensitive scalps and skin, fine hair, or short hair. It can be a useful product for those who want to feel refreshed afterwards.

Although the reason why the effect of the hair cleansing agent of the present embodiment is obtained is not clear, it is presumed as follows.
In the case of a complex (coacervate) with at least one of cationized cellulose and cationized guar gum as a conditioning component for amino acid surfactants, the amount of coacervate produced when applied to wet hair and whipped is low. many.
On the other hand, in the case of the present embodiment in which cationized starch is used in combination as a conditioning component, (i) the amount of coacervate produced during foaming is suppressed, or (ii) water From the operation of lathering on wet hair, the amount of coacervate generated in the process of rinsing with running water is suppressed overall, or (iii) the generation behavior of coacervate in the process of rinsing with running water (coacervation is likely to occur concentration range) are different (see FIG. 3).
Alternatively, (iv) a new complex of at least one of cationic cellulose and cationic guar gum, cationic starch, and amino acid surfactant is formed (see FIG. 4).
From the above, it is presumed that the hair cleanser of the present embodiment improves the rinsing performance, provides excellent finger passability during rinsing, and reduces stickiness.

In another embodiment, the hair cleansing agent employs component (A): amino acid-based surfactant and amine oxide as cleaning components, and component (P1): cationized cellulose and cationized guar gum as conditioning components. At least one selected from the group and (P2) component: cationized starch are used in combination.
Furthermore, by using an amine oxide together, it becomes possible to combine the (P1) component and the (P2) component in a wide mixing ratio, and the formation behavior of the complex (coacervate) can be changed. Along with this, the effect of reducing finger passability during rinsing and stickiness after rinsing is further improved. In addition, by containing an amine oxide, the solubilizing ability in the hair cleanser is enhanced, making it easier to maintain a transparent appearance. Further, when a thickener is optionally included as a viscosity modifier, the amine oxide enhances the action of the thickener and contributes to increasing the viscosity of the composition.

EXAMPLES The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these examples. In addition, Example 1, Example 2, Example 5, Example 6, Example 9, and Example 10 are treated as reference examples.

<Ingredients used>
In Examples and Comparative Examples, the components shown below were used.

(A) component: amino acid-based surfactant A-1: N-coconut fatty acid acyl-L-glutamic acid triethanolamine liquid, trade name "Amino Surfact (registered trademark) ACMT-L", manufactured by Asahi Kasei Finechem Corporation; Pure content 30% by mass

(P) Component: Cationic Polymer Compound As the (P) component, cationized cellulose as the (P1) component and cationized starch as the (P2) component were used.

P1-1: Cationized cellulose polyquaternium-10 (O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride), trade name “DOCQUAT (registered trademark) 10”, manufactured by DOC Japan Co., Ltd.; weight Average molecular weight (Mw) 800,000, pure content 100% by mass

P2-1: Cationized starch hydroxypropyltrimonium chloride starch, trade name “DOCSTARCH (registered trademark) CP Plus”, manufactured by DOC Japan Co., Ltd.; water-soluble cationic polymer derived from potato starch, pure content 32% by mass

Other components Amphoteric surfactant (1): Cocamidopropyl betaine liquid, trade name "Amphitol 55AB", manufactured by Kao Corporation; pure content 30% by mass
Amphoteric surfactant (2): Lauryl hydroxysulfobetaine liquid, trade name "Amphitol 20HD", manufactured by Kao Corporation; pure content 30% by mass
Nonionic surfactant (1): Cocamide MEA, trade name "Amisole CME", manufactured by Kawaken Fine Chemicals Co., Ltd. Nonionic surfactant (2): Cocamide MEA, trade name "Toho Hall N-120", manufactured by Toho Chemical Industry Co., Ltd. Nonionic surfactant (3): lauramine oxide, trade name "Amphitol 20N", manufactured by Kao Corporation; pure content 35% by mass
Viscosity modifier (thickener): PEG-160 sorbitan triisostearate, trade name "Rheodol TW-IS399C", manufactured by Kao Corporation Humectant: 1,3-butylene glycol, trade name "1,3-BG", Wetting agent manufactured by Daicel Corporation: Sorbitol, trade name "sorbitol (70%)", manufactured by Kao Corporation; pure content 70% by mass
Preservative (1): Methylparaben, trade name "methyl paraoxybenzoate", manufactured by Ueno Pharmaceutical Co., Ltd. Preservative (2): Phenoxyethanol, trade name "Neolon PH100", manufactured by Dow Chemical Japan Co., Ltd. Preservative (3): Pentylene glycol, trade name "Activonol-5", manufactured by Activon Chelating agent: disodium ethylenediaminetetraacetate, trade name "Krewat N", manufactured by Nagase ChemteX Corporation Solvent: propylene glycol, trade name "PG", Dow Chemical Co., Ltd. Solvent: Water, trade name “purified water (Pharmacopoeia)”, manufactured by Kosakai Pharmaceutical Co., Ltd.

<Preparation of hair cleanser (1)>
(Examples 1-4, Comparative Examples 1-2)
A hair cleanser of each example was prepared as follows so as to have the composition and content shown in Table 1 below.
Specifically, the component (P1) is dispersed in water, which is a solvent, while being heated, and the component (A), the amphoteric surfactant, and the nonionic surfactant (1) are added in sequence at 80°C. Mix and dissolve. Next, the mixture was cooled, and the component (P2) and the preservative were added and mixed and dissolved at 60°C or lower to obtain a hair cleanser of each example.

In Table 1, the numerical value of each component indicates the content of each component in the hair cleanser, and means the ratio (% by mass; converted to pure content) to the total mass of the hair cleanser.
The pH of the hair cleanser was determined by using a pH meter (product name: HM-30G, manufactured by Toa DKK Co., Ltd.), inserting the electrode of the pH meter directly into the hair cleanser adjusted to 25° C., and measuring the pH after stabilization. measured by reading the value.
The viscosity of the hair cleansing agent was measured using a BM viscometer, rotor No. 4, the viscosity was calculated from the read value after rotating the rotor at 6 rpm for 1 minute with respect to the hair cleanser adjusted to 25°C.

<Evaluation (1)>
Hair tresses were washed with the hair cleanser of each example, and the feel after rinsing was evaluated by measuring the combing force of the hair in the wet state after rinsing and in the dry state after rinsing. did. Specifically, evaluation was performed as follows.

[Preparation of hair bundle]
1 g of hair bundles having a length of 10 cm purchased as undamaged hair bundles were used as hair bundles for normal hair.
In addition, 1 g of a hair bundle with a length of 10 cm purchased as a hair bundle with no damage was treated with a commercially available bleaching agent (manufactured by Mandom Co., Ltd.) for twice the treatment time of the instruction manual and washed with water. After further drying, it was used as a hair tress for damaged hair.

[Measurement of combing load (combing force); in wet state after rinsing]
Procedure (1): 1 g of normal hair tress with a length of 10 cm is wetted with warm water of 40° C. and lightly squeezed, and 0.1 g of sample hair cleanser is spread over the entire wet tress. was applied to

Procedure (2): The hair bundle to which the sample was applied was immersed in 200 mL of hot water at 40 ° C. and rinsed twice, and then gently squeezed so that the water would not drip (dilution rate 200 times; rinse assuming the second half).

Procedure (3): After lightly squeezing the tresses, the tresses were combed 5 times, and then the combing load (combing force) was started.
Procedure (4): Tensile strength was measured during at least 8 combings.

Imada's ZTA/ZTS series model DST-2N force gauge was used as a tensile strength measuring instrument.
The tensile strength during combing was measured by fixing the force gauge, suspending the hair bundle, and performing combing. That is, the maximum load was measured when the comb was passed straight downward in the direction of gravity while the comb was kept perpendicular to the length direction of the hair tuft.
In addition, the measurement of tensile strength at the time of combing was performed after excluding both the measured value of the first and second times of combing and the abnormal value when the comb was accidentally caught in the hair bundle. The average value of multiple measurements was taken.

[Measurement of combing load (combing force); in case of dry state after rinsing]
The above procedure (1) and procedure (2) were performed in the same manner for 1 g of hair bundles of 10 cm in length for normal hair.
After the procedure (2), the lightly squeezed hair bundle was naturally dried at room temperature (25° C.) for 24 hours.
After that, the air-dried tresses were combed 5 times, and then the combing load (combing force) was measured. Then, the procedure (4) was performed in the same manner, and the tensile strength during combing was measured.

1 and 2 show the results of measuring the combing force of the hair in the wet state after rinsing and in the dry state after rinsing, respectively, for the hair cleanser of each example.
The vertical axis indicates the tensile strength (unit: N (Newton)) during combing.

FIG. 1 shows the measurement results of the combing load of hair in a wet state after rinsing, which was performed on a bundle of normal hair using each of the hair detergents of Comparative Examples 1, 3, and 2. (Wet-combability), and the measurement result of the combing load of the hair in the dry state after rinsing (Dry-combability).

FIG. 2 shows the measurement results of the combing load of hair in a wet state after rinsing, which was performed on a bundle of damaged hair using each of the hair cleansers of Comparative Examples 1, 3, and 2. (Wet-combability), and the measurement result of the combing load of the hair in the dry state after rinsing (Dry-combability).

From the results shown in FIG. 1, hair bundles for normal hair/dilution rate of 200 times (assuming the latter half of rinsing)/wet state after rinsing, when the hair cleanser of Comparative Example 1 was used, hair combability was improved. Load was the lowest value.
When the hair cleanser of Example 3 to which the present invention was applied was used, the combing load of the hair was slightly higher than when the hair cleanser of Comparative Example 1 was used.
Among Comparative Examples 1, 3 and 2, when the hair cleanser of Comparative Example 2 was used, the combing load of hair was the highest.

Regarding normal hair bundle/dilution rate 200 times (assuming the latter half of rinsing)/dry state after rinsing, the combing load of hair was the highest when the hair cleanser of Comparative Example 1 was used. rice field. When the hair cleansing agent of Example 3 and the hair cleansing agent of Comparative Example 2 were used, both the combing properties of the hair were improved compared to the case of using the hair cleansing agent of Comparative Example 1. The hair combing load was low, and Example 3 and Comparative Example 2 had approximately the same combing load.

From the above, it is conceivable that when the hair cleanser of Comparative Example 1 was used, the finger combability was very good during rinsing. However, in the hair cleanser of Comparative Example 1, a large amount of coacervate was produced and adhered excessively to the hair, so that the combing load of the hair in the dry state after rinsing was the highest value. ,it is conceivable that. It is presumed that this leads to the feeling of stickiness after rinsing and lack of refreshing feeling, depending on the difference in hair quality or skin quality.
When the hair cleanser of Example 3 to which the present invention was applied was used, compared with the case of using the hair cleanser of Comparative Example 1, the strength of finger combing during rinsing was moderately suppressed. It is considered that the absence of stickiness (nulliness) after rinsing is improved. In addition, in a dry state after rinsing, when the hair cleanser of Example 3 is used, it is considered that finger combability is better than when the hair cleanser of Comparative Example 1 is used.
In the case of using the hair cleanser of Comparative Example 2, it is considered that the finger combability in the dry state after rinsing is good, although the combability with the fingers during rinsing is inferior.
The difference in the results for the hair tresses for normal hair described above is due to the difference in the amount of complex (coacervate) produced and the quality of the complex in each of the hair cleansers of Comparative Examples 1, 3 and 2. presumed to have appeared.

From the results shown in FIG. 2, regarding hair bundles for damaged hair/dilution rate of 200 times (assuming the latter half of rinsing)/wet state after rinsing, when the hair cleanser of Comparative Example 1 was used, the hair of Example 3 In the case of using the hair cleanser and the case of using the hair cleanser of Comparative Example 2, the combing load of the hair was almost the same.

Hair bundle for damaged hair/dilution rate 200 times (assuming the latter half of rinsing)/dry state after rinsing: When the hair cleanser of Comparative Example 1 was used, the combing load of hair was the highest. rice field. When the hair cleanser of Example 3 was used, the combing load of the hair was lower than when the hair cleanser of Comparative Example 1 was used. Among Comparative Examples 1, 3 and 2, when the hair cleanser of Comparative Example 2 was used, the combing load of hair was the lowest value.

As described above, for damaged hair, the amount of the complex (coacervate) adhered to the hair in the dry state did not change significantly between Comparative Examples 1, 3, and 2, and the quality of the complex adhered to the hair was It is speculated that there is a difference between

<Evaluation (2)>
Hair was actually washed with each of the hair cleansers of Comparative Example 1 and Example 3 (practical test), and sensory evaluation was performed as follows.
Specifically, each of the four trained panelists applied 4 to 10 g of a hair cleanser to wet hair according to the length of the hair, followed by a washing operation and a rinsing operation.
Next, a conditioner was applied, followed by a rinsing operation and a drying operation. As a conditioner, 5 to 12 g of a brand conditioner that each participant usually uses was used.
During the rinsing operation after the washing operation, the aforementioned 4 expert panel members evaluated the refreshing feeling of the scalp in the latter half of the rinsing operation, the absence of stickiness of the hair after the drying operation, and the refreshing sensation of the scalp after the drying operation. .
Such evaluation was carried out by scoring each item from 0 points to 4.5 points at intervals of 0.5 points and averaging the scores.

From the results shown in Table 2, when the hair cleanser of Example 3 to which the present invention was applied was used, compared with the case of using the hair cleanser of Comparative Example 1, the rinsing operation in the rinsing operation after the washing operation was more pronounced. It can be seen that the sensory evaluations of the refreshing feeling of the scalp in the second half, the absence of stickiness of the hair after the drying operation, and the refreshing feeling of the scalp after the drying operation are all high.
In other words, it was confirmed that the user could fully feel the difference in the feel during rinsing even in actual use.

Even when the hair cleansing agents of Examples 1 and 2 were used, the evaluation was lower than when the hair cleansing agent of Example 3 was used, but the hair cleansing agent of Comparative Example 1 was used. Sensory evaluations of the refreshing sensation of the scalp in the second half of the rinsing operation after the washing operation, the absence of stickiness of the hair after the drying operation, and the refreshing sensation of the scalp after the drying operation were all higher than in the case of the hair dryer. there were.

In the case of using the hair cleansing agent of Example 4, the evaluation was about the same as in the case of using the hair cleansing agent of Example 3, and compared to the case of using the hair cleansing agent of Comparative Example 1. In the rinsing operation after the washing operation, the sensory evaluation of the refreshing feeling of the scalp in the second half of the rinsing operation, the absence of stickiness of the hair after the drying operation, and the refreshing feeling of the scalp after the drying operation were all high.

When the hair cleanser of Comparative Example 2 was used, the scalp felt refreshed in the latter half of the rinsing operation after the washing operation, the hair did not feel sticky after drying, and the scalp felt refreshed after drying. Although the sensory evaluation of the feeling was high, the ease of combing with fingers felt during rinsing after the washing operation was weak.

<Evaluation (3)>
The formation behavior of coacervate formed when the hair cleanser of each example was diluted with water was investigated. The results are shown in FIG.

FIG. 3 is a graph showing the change in the amount of coacervate produced with respect to the dilution ratio of each hair cleanser of Comparative Examples 1, 3, and 2. FIG.
In FIG. 3, the horizontal axis indicates the dilution ratio of the hair cleanser, and the dilution ratio increases from right to left. This corresponds to a series of hair washing actions in which a hair cleanser is applied to wet hair, followed by a washing operation and a rinsing operation (during rinsing, last half of rinsing).
The vertical axis indicates the amount of coacervate produced using turbidity as an index. Turbidity is measured by absorbance at a wavelength of 420 nm. The lower the turbidity value, the lower the amount of coacervate produced (weak turbidity of the diluted hair cleanser), and the higher the turbidity value, the higher the amount of coacervate produced (dilution The liquid is strongly turbid).

From the results shown in FIG. 3 , the amount of coacervate generated in the case of using the hair cleansing agent of Example 3 to which the present invention is applied is generally lower than that of the case of using the hair cleansing agent of Comparative Example 1. , it can be confirmed that the amount of coacervate produced is suppressed.
In particular, the production amount of coacervate when the hair cleanser of Example 3 is used in a range where the dilution ratio of the hair cleanser is low (washing operation) and the dilution ratio is around 20 to 50 times (during rinsing), It can be seen that there is a large difference in the amount of coacervate produced when the hair cleanser of Comparative Example 1 is used.
In addition, when the dilution ratio of the hair cleanser was around 50 to 100 times (the latter half of rinsing), the amount of coacervate produced when the hair cleanser of Example 3 was used remarkably increased. It can be seen that the hair cleansing agent of Example 3 and the hair cleansing agent of Comparative Example 1 are different in coacervate generation behavior (concentration range in which coacervation tends to occur) in the process of rinsing with running water.

<Evaluation (4)>
When the hair cleanser of each example was diluted 50 times with water, the appearance of the diluted solution was visually observed.
FIG. 4 is a photograph of the diluent.
After each hair cleanser was prepared, a sample of 0.1 to 1.0 g was stored at room temperature (25° C.) for 1 day, diluted 50 times with water, shaken for 60 seconds, and photographed after standing for 30 minutes or longer.
The photographs in FIG. 4 are photographs of the diluted solutions of the hair cleansing agents of Comparative Example 1, Example 1, Example 2, Example 3, Example 4, and Comparative Example 2 from the left.

From the appearance of the diluted solution shown in FIG. 4, it can be confirmed that in the diluted solution of the hair cleanser of Comparative Example 1, the complex (coacervate) is almost uniformly dispersed.

In each of the diluted solutions of the hair cleansing agents of Examples 1, 2, and 3, the complex (coacervate) layer and the aqueous layer were separated, with the complex (coacervate) layer being the upper layer. rice field. Among these, the diluted solution of the hair cleanser of Example 3 was the most remarkably separated.

The diluted solution of the hair cleanser of Example 4 was separated into a complex (coacervate) layer and an aqueous layer, with the complex (coacervate) layer being the lower layer.

In the diluted solution of the hair cleansing agent of Comparative Example 2, the complex (coacervate) layer and the water layer were separated, and in addition to the complex (coacervate) layer coming to the lower layer, the complex (coacervate) layer was further aggregated (separation tendency). ) complex had formed.

From the difference in the appearance of these diluted solutions, the complex (coacervate) of the conditioning component that uses both the cationized cellulose and the cationized starch and the amino acid-based surfactant is the cationized cellulose and the amino acid-based surfactant. It is not a simple mixture of a complex and a complex of a cationic starch and an amino acid surfactant, but a new complex consisting of three components of a cationic cellulose, a cationic starch and an amino acid surfactant. guessed.
In addition, it is presumed that the physical properties of the new composite composed of these three components also differ depending on the mixing ratio of the cationized cellulose and the cationized starch.

<Preparation of hair cleanser (2)>
(Examples 5-8, Comparative Examples 3-4)
A hair cleanser of each example was prepared as follows so as to have the composition and content shown in Table 3 below.
Specifically, the (P1) component is dispersed in water, which is a solvent, while being heated, and at 80 ° C. the (A) component, the amphoteric surfactant, the nonionic surfactant (2), and the nonionic surfactant ( 3) The viscosity modifier (thickener) was sequentially added and mixed and dissolved. Next, the mixture was cooled, and the component (P2) and the preservative were added and mixed and dissolved at 60°C or lower to obtain a hair cleanser of each example.

In Table 3, the numerical value of each component indicates the content of each component in the hair cleanser, and means the ratio (% by mass; converted to pure content) to the total mass of the hair cleanser.
The pH of the hair cleanser was determined by using a pH meter (product name: HM-30G, manufactured by Toa DKK Co., Ltd.), inserting the electrode of the pH meter directly into the hair cleanser adjusted to 25° C., and measuring the pH after stabilization. measured by reading the value.
The viscosity of the hair cleansing agent was measured using a BM viscometer, rotor No. 4, the viscosity was calculated from the read value after rotating the rotor at 6 rpm for 1 minute with respect to the hair cleanser adjusted to 25°C.

<Evaluation (5)>
Hair tresses were washed with each of the hair cleansers of Examples 5-8 and Comparative Examples 3-4, and the combing force (combing force) of the hair in the wet state after rinsing and in the dry state after rinsing was measured. By doing so, the feeling after rinsing was evaluated.
Specifically, [preparation of hair bundle], [measurement of combing load (combing force); in case of wet state after rinsing] and [measurement of combing load (combing force); in case of dry state after rinsing ] were performed in the same manner as in <Evaluation (1)> above.

FIG. 5 shows the results of measuring the combing force of the hair in the wet state after rinsing and in the dry state after rinsing for each example of the hair cleanser.
The vertical axis indicates the tensile strength (unit: N (Newton)) during combing.

FIG. 5 shows the measurement results of the combing load of hair in a wet state after rinsing, which was performed on damaged hair tresses using the hair cleansers of Examples 5 to 8 and Comparative Examples 3 and 4. (Wet-combability), and the measurement result of the combing load of the hair in the dry state after rinsing (Dry-combability).

From the results shown in FIG. 5, the hair bundles for damaged hair/dilution rate of 200 times (assuming the second half of rinsing)/wet state after rinsing were obtained using the hair cleansers of Examples 5 to 8 to which the present invention was applied. In this case, the combing load of the hair was lower than in the case of using each of the hair cleansing agents of Comparative Examples 3 and 4. Among Examples 5 to 8, when each of the hair cleansing agents of Examples 6 to 8 was used, the combing load of hair was lower.

Hair bundles for damaged hair/dilution rate 200 times (assuming the latter half of rinsing)/dry state after rinsing: combing when using any of the hair cleansers of Examples 5-8 and Comparative Examples 3-4 The tensile strength at this time was a low value of around 0.3 N or less, and the combing load of the hair was kept low. In addition, among Examples 5 to 8, when each of the hair cleansing agents of Examples 5 to 6 was used, the combing load of the hair was lower.

The results shown in FIG. 1 show that when the hair cleansing agents of Comparative Example 1 (P1-1 alone) and Example 3 (combination of P1-1 and P2-1) were used, the hair in a dry state after rinsing The value of the tensile strength at the time of combing was higher than the combing load of the wet hair after rinsing.
On the other hand, according to the results shown in FIG. Unlike the results shown, the combing load of the hair in the dry state after rinsing gave lower values of tensile strength during combing than the combing load of the hair in the wet state after rinsing.

From the above, by using the components (A), (P1) and (P2) in addition to the amine oxide, the feeling of finger combing during rinsing can be improved, and the stickiness (smoothness) after rinsing can be improved. ) can also be sufficiently suppressed.
In addition, by using an amine oxide in combination, it becomes possible to combine and use the (P1) component and the (P2) component in a wide mixing ratio. For example, the (P2) component may be mixed so as to have a smaller mass ratio than the (P1) component.
The difference in the results for the hair tresses for damaged hair described above is due to the amount of complex (coacervate) produced and the quality of the complex in each of the hair cleansers of Comparative Example 3, Examples 5 to 8, and Comparative Example 4. It is speculated that the difference appears due to the combined use of amine oxide.

<Evaluation (6)>
Hair was actually washed with each of the hair cleansers of Comparative Example 3 and Example 6 (practical test), and sensory evaluation was performed as follows.
Specifically, two trained panelists each applied 4 to 10 g of a hair cleanser to wet hair according to the length of the hair, followed by a washing operation and a rinsing operation.
Next, a conditioner was applied, followed by a rinsing operation and a drying operation. As a conditioner, 5 to 12 g of a brand conditioner that each participant usually uses was used.
At that time, the amount of foam during the washing operation, the foam quality (elasticity) during the washing operation, the smoothness of the hair surface during the washing operation (absence of squeakiness), and the refreshing feeling of the scalp in the latter half of the rinsing operation after the washing operation. , Goodness of application when conditioner is applied after rinsing after washing, finger combing after drying (no tangling), smoothness on the hair surface after drying (no creaking) , was evaluated by the above-mentioned two expert panels.
Such evaluation was carried out by scoring each item from 1 point to 7 points; scoring at intervals of 0.5 points and averaging the scores.

From the results shown in Table 4, in the case of using the hair cleanser of Example 6 to which the present invention is applied, compared with the case of using the hair cleanser of Comparative Example 3, the performance during the washing operation and after the washing operation are higher. It can be seen that the sensory evaluation of both the refreshing feeling of the scalp in the latter half of the rinsing operation and the performance after the drying operation in the rinsing operation was remarkably high.
In other words, it was confirmed that the user could fully feel the difference in the feel during rinsing even in actual use. In addition, it was confirmed that the user could sufficiently feel the difference in the foaming performance and the feel after the conditioner treatment.

<Preparation of hair cleanser (3)>
A hair cleanser of each example was prepared as follows so as to have the composition and content shown in Table 5 below.

(Example 9)
Disperse the component (P1) in water, which is a solvent, while heating, and at 80 ° C. component (A), amphoteric surfactant, nonionic surfactant (2), nonionic surfactant (3), viscosity adjustment The agent (thickener) was mixed and dissolved while being added sequentially. Next, the mixture was cooled, and the component (P2) and the preservative were mixed and dissolved at 60°C or lower to obtain a hair cleanser of Example 9.

(Example 10)
A hair cleanser of Example 10 was obtained by mixing and dissolving each component shown in Table 5 in the same manner as in Example 9, except that the nonionic surfactant (3) was not blended.

In Table 5, the numerical value of each component indicates the content of each component in the hair cleanser, and means the ratio (% by mass; converted to pure content) to the total mass of the hair cleanser.
The pH of the hair cleanser was determined by using a pH meter (product name: HM-30G, manufactured by Toa DKK Co., Ltd.), inserting the electrode of the pH meter directly into the hair cleanser adjusted to 25° C., and measuring the pH after stabilization. measured by reading the value.

<Evaluation (7)>
With respect to each of the hair cleansing agents of Examples 9 and 10, the viscosity was measured and the stability over time was evaluated as follows.

[Measurement of viscosity]
The viscosity of the hair cleanser in each example was determined by rotor No. 1 with a BM viscometer. 4, the viscosity was calculated from the read value after rotating the rotor at 6 rpm for 1 minute with respect to the hair cleanser adjusted to 25°C. The results are shown in Table 5.

[Evaluation of stability over time]
The hair cleanser of each example was stored in a refrigerator at a temperature of 2° C. for 45 days. The hair cleanser thus stored was taken out of the refrigerator and placed in a laboratory at room temperature (25° C.) for 3 minutes.

From the results shown in Table 5, it can be confirmed that the hair cleanser of Example 9 containing an amine oxide has a higher viscosity than the hair cleanser of Example 10 which does not contain an amine oxide. . From this, it is considered that the addition of amine oxide affects the viscosity increase of the composition.

From the results shown in FIG. 6, the hair cleanser of Example 9 containing amine oxide was almost transparent due to dew condensation, and the hair cleanser of Example 10 containing no amine oxide was clearly cloudy. It can be confirmed that This suggests that the addition of amine oxide affects the solubilizing ability and transparent appearance of the composition.

Claims (2)

(A) component: amino acid-based surfactant, and (P) component: containing a cationic polymer compound,
The component (A) is an acyl of a long-chain fatty acid having a hydrocarbon group of 8 to 22 carbon atoms and an amino acid selected from the group consisting of glycine, alanine, glutamic acid, aspartic acid, arginine, and isomers thereof. is formed by
The (P) componentteeth, (P1) component: at least one selected from the group consisting of cationized cellulose and cationized guar gum, and (P2) component: cationized starch.fruit,
The ratio of the (P1) component and the (P2) component is 5/5 to 8/2 as a mass ratio represented by (P2) component/(P1) component,
The content of the component (A) is 1.5 to 20% by mass,
The content of the component (P) is 0.2 to 1.5% by mass , hair cleanser. 2. The hair cleanser according to claim 1, further comprising an amine oxide.

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