JP2782567B2 - Hair cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic, and more particularly, to a hair cosmetic selected from a rinse, a treatment and a conditioner having excellent softness and less stickiness.

[0002]

2. Description of the Related Art Hair cosmetics such as rinses and treatments containing a long-chain monoalkyl-type cationic surfactant and cetyl alcohol as main components to impart softness and smoothness to hair. Fees are widespread.
However, when the smoothness at the time of rinsing or drying the towel is sufficiently increased, there are problems such as stickiness and weight while feeling softness at the time of drying. On the other hand, a conditioner using an alkylamine oxide (Japanese Patent Application Laid-Open No.
No. 37717) is also known, but there is a problem that the feeling of flexibility is not sufficient. Therefore, there has been a demand for a hair cosmetic which has excellent smoothness when rinsing or drying with a towel, has no stickiness or weight when drying, and has excellent softness. In addition, for hair cosmetics that penetrate the interior of hair with a functional substance such as an acid dye and change the color tone and other physical properties of the hair, for example, when the functional substance is an acid dye,
Semi-permanent hair dyes and color rinses are commercially available. However, when these acid dyes penetrate into the hair, there is a problem that the feel of the treated hair is not good because a relatively large amount of an organic solvent is used. Also, there is a problem in terms of feel when penetrating other functional substances.

[0003] Therefore, hair cosmetics which are excellent in smoothness when rinsing or drying with a towel, have excellent softness without stickiness and weight when drying, and have a good feel to the hair even when a functional substance is blended. The development of was desired.

[0004]

Means for Solving the Problems The present inventors have made intensive studies in view of the above circumstances, and as a result, have found that hair cosmetics containing the following compounds (A) to (C) and having a specific pH range have smoothness. The present invention was found to be excellent in flexibility and the like, and completed the present invention.

That is, the present invention provides the following component (A):
(B) and (C) (A) a long-chain alkylamine oxide (B) selected from a compound represented by the following general formula (1), a compound represented by the following general formula (2) and an alkylene carbonate having 1 to 4 carbon atoms One or more organic solvents

[0006]

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(C) An object of the present invention is to provide a hair cosmetic selected from rinses, treatments and conditioners, which contains an oil agent having an HLB of 5 or less and has a pH of 2 to 5.

The long-chain alkylamine oxide of the component (A) used in the present invention is preferably a long-chain monoalkyl type or a long-chain dialkyl type. As the long-chain monoalkyl type amine oxide, the following general formula (3)

[0009]

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[In the formula, R ⁵ and R ⁶ may be the same or different and each represent an alkyl group, an alkoxy group or a hydroxyalkyl group having 1 to 4 carbon atoms, and R ⁷ has 8 to 36 carbon atoms. The following linear or branched alkyl groups are represented by n
Represents a number from 0 to 10).
The number of carbon atoms in the R ⁷ is preferably 12 to 20.

Examples of long chain monoalkyl type amine oxides suitable for use in the present invention include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide,
Cetyl dimethyl amine oxide, stearyl dimethyl amine oxide, oleyl dimethyl amine oxide, heptadecyl dimethyl amine oxide, behenyl dimethyl amine oxide, dimethyl cocamine oxide, dimethyl hydrogenated tallow amine oxide, bis (hydroxyethyl) cocamine oxide, bis ( (Hydroxyethyl) tallow amine oxide, bis (hydroxypropyl) stearylamine oxide, bis (hydroxymethyl) behenamine oxide, pentadecyldiethylamine oxide, tridecyldipropylamineoxide, tridecylbis (2-hydroxybutyl) amineoxide, heptadecylbis ( 2-hydroxybutyl) amine oxide, tridecyloxypropyl bis (hydroxyethyl) Amine oxide.

The long-chain dialkyl type amine oxide is represented by the following general formula (4)

[0013]

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(Wherein R ⁸ represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group or a hydroxyalkyl group;
⁹ and R ¹⁰ may be the same or different, and have 8 carbon atoms.
And a linear or branched alkyl group of 36 or less, and n represents a number of 0 to 10). Preferably, R ⁹ and R ¹⁰ have 8 to 18 carbon atoms.

Examples of long chain dialkyl type amine oxides suitable for use in the present invention include dicocomethylamine oxide, distearylmethylamine oxide, di-
Hydrogenated tallow methylamine oxide, dicetylmethylamine oxide, cetylisocetylmethylamineoxide, laurylcetylmethylamineoxide, dilinoleylmethylamineoxide, disoyamethylamineoxide, diisostearylmethylamineoxide, distearylhydroxy Ethylamine oxide,
Stearylisostearylhydroxymethylamine oxide, hexylbis (2-hydroxy-hexadecyl) amine oxide and distearylhydroxypropylamine oxide.

The amount of the long-chain alkylamine oxide to be added to the hair cosmetic composition of the present invention is preferably 0.1 to 10% by weight (hereinafter simply referred to as "%"), more preferably 0.5 to 5%. If it is less than 0.1%, it is difficult to obtain an emulsified composition.
%, Stickiness and weight etc. are felt during drying.

Specific examples of the organic solvent of the component (B) used in the present invention include, for example, ethanol, isopropanol, n-propanol, n-butanol, isobutanol, ethylene glycol, propylene glycol,
3-butanediol, benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol, methyl carbitol, ethyl carbitol, propyl carbitol, butyl carbitol , Triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, glycerin, N-methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone, ethylene carbonate and the like.

The amount of the component (B) to be added to the hair cosmetic composition of the present invention is preferably 0.5 to 40%, more preferably 2 to 25%, and particularly preferably 5 to 25%. If it is less than 0.5%, the feel of the hair such as softness is reduced, and if it exceeds 40%, it becomes difficult to obtain an emulsified composition.

The oily component (C) having an HLB of 5 or less used in the present invention includes higher fatty acids, higher alcohols,
Examples include higher fatty acid esters and their alkylene oxide adducts, hydrocarbons and waxes. For example, higher fatty acids such as lauric acid, palmitic acid, isostearic acid, stearic acid, behenic acid and oleic acid; higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, octyldodecyl alcohol, cholesterol;
Higher fatty acid esters of alcohols such as ethylene glycol, propylene glycol, isopropyl alcohol, 2-ethylhexanol and sorbitan; alkylene oxide adducts of these higher fatty acids, higher alcohols and higher fatty acid esters; and paraffin wax, liquid paraffin, squalane and the like. Can be Of these, HL
B is preferably 4 or less, more preferably 3 or less, particularly preferably 1 or less. Examples include higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol and the like. HLB is a balance between hydrophilicity and lipophilicity (Hydrophilic).
-Lypophilic Balance), and in the present invention, a value calculated using the following equation by Oda and Teramura et al. Is used.

[0020]

(Equation 1)

The amount of the component (C) to be added to the hair cosmetic composition of the present invention is preferably 0.5 to 10%, more preferably 1 to 5%. If it is less than 0.5%, the feel of the hair such as softness and smoothness decreases, and if it exceeds 10%, the feel of the hair such as stickiness and heavyness decreases.

The hair cosmetic of the present invention has a pH of 2 to 5,
It is preferably from 2.5 to 4.5. Here, the pH of the present hair cosmetic refers to the pH of a 10% aqueous solution of the present cosmetic. If the pH is less than 2, irritation to the hand skin becomes strong, and if it exceeds 5, the feel of the hair such as softness is deteriorated.

As the pH adjuster, organic acids, inorganic acids and / or
Alternatively, their salts can be used. Particularly, an organic acid or a salt thereof is preferable. Examples of the organic acid include citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid, levulinic acid, butyric acid, valeric acid, oxalic acid,
Maleic acid, fumaric acid, mandelic acid and the like can be mentioned, and as the inorganic acid, for example, phosphoric acid, sulfuric acid, nitric acid and the like can be mentioned. Examples of the salts of these acids include sodium salts, potassium salts, ammonium salts, and alkanolamine salts such as triethanolamine salts.

The hair cosmetic composition of the present invention further comprises component (D)
Various functional substances can be blended. The functional substance (D) preferably used in the present invention is a compound that penetrates into the hair and can change the physical properties of the hair to an appreciable degree, and has a charge and a size that easily penetrate into the hair. It is necessary to be. When the pH is in the range of 2 to 5, the compound is preferably an anionic or nonionic compound. Preferably, an anionic compound such as sulfonic acid, carboxylic acid and phosphoric acid is used. The molecular weight is preferably 1,000 or less, more preferably 500 or less, from the viewpoint of penetrating the inside of the hair. Examples of the functional substance (D) include a direct dye, an aromatic sulfonic acid, an organic carboxylic acid having a hydroxy group, and an ultraviolet absorber. It is preferable to add one or more of these to the hair cosmetic of the present invention. Among them, anionic or nonionic direct dyes, aromatic sulfonic acids and organic carboxylic acids having a hydroxy group are particularly preferred.

Examples of the direct dye used in the present invention include nitro dyes such as 3-amino-4-hydroxynitrobenzene, 2-amino-5-hydroxynitrobenzene, 2-amino-3-hydroxynitrobenzene, and 2-amino-3-hydroxynitrobenzene. Amino-5-N, N-bis-β-hydroxyethylaminonitrobenzene, 2-amino-4-chloro-
5-N-β-hydroxyethylaminonitrobenzene,
2-amino-4-methyl-5-N-β-hydroxyethylaminonitrobenzene, 3,4-bis- (N-β-hydroxyethylamino) nitrobenzene, 2-amino-
4-methyl-5-N-β, γ-dihydroxypropylaminonitrobenzene, 2-amino-4-methyl-5-β
-Aminoethylaminonitrobenzene, 2-amino-4
-Hydroxynitrobenzene and preferably;
3,4-diaminonitrobenzene, 2,5-diaminonitrobenzene, 2-amino-5-N-β-hydroxyethylaminonitrobenzene, 2-N-β-hydroxyethylamino-5-N, N-bis-β-hydroxy Ethylaminonitrobenzene, 2-N-methylamino-5
N, N-bis (β-hydroxyethyl) aminonitrobenzene, 2-N-methylamino-5-N-methyl-N-
β-hydroxyethylaminonitrobenzene, 2-N-
β-hydroxyethylamino-5-hydroxynitrobenzene, 3-methoxy-4-N-β-hydroxyethylaminonitrobenzene, 4-nitro-3-methylaminophenoxyethanol, 2-N-β-hydroxyethylamino-5-aminonitrobenzene , 2-N-β-hydroxyethylaminonitrobenzene, 3-amino-4-
N-β-hydroxyethylaminonitrobenzene, 3-
β-hydroxyethyloxy-4-N-β-hydroxyethylaminonitrobenzene, 2-amino-5-N-methylaminonitrobenzene, 2-amino-3-methylnitrobenzene, 2-N-β-hydroxyethylamino-5
-Β, γ-dihydroxypropoxy nitrobenzene,
3-hydroxy-4-N-β-hydroxyethylaminonitrobenzene, 3-hydroxy-4-aminonitrobenzene, 2,5-N, N′-β-hydroxyethylaminonitrobenzene, 2-N-methylamino-4-o −
β, γ-dihydroxypropoxy nitrobenzene, 2
-N-β-aminoethylamino-5-N, N-bis-
(Β-hydroxyethyl) aminonitrobenzene, 2-
N-β-aminoethylamino-4-methoxynitrobenzene, 2-N-β-aminoethylamino-5-β-hydroxyethyloxynitrobenzene, 1-amino-4-methylaminoanthraquinone, 1,4-diaminoanthraquinone; acidic Dyes Red No. 2, Red No. 3, Red No. 10
No. 2, Red No. 104, Red No. 105, Red No. 106, Yellow No. 4, Yellow No. 5, Green No. 3, Blue No. 1, Blue No. 2, Red No. 201, Red No. 227, Red No. 230, Red No. 231
No., Red No. 232, Orange No. 205, Orange No. 207, Yellow No. 202, Yellow No. 203, Green No. 201, Green No. 204
No., Green No. 205, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Red No. 401, Red No. 502
No., Red No. 503, Red No. 504, Red No. 506, Orange No. 402, Yellow No. 402, Yellow No. 403, Yellow No. 406
No. 407, Yellow No. 407, Green No. 401, Green No. 402, Purple No. 401, Black No. 401; Red 215 which is an oil-soluble dye
No., Red No. 218, Red No. 225, Orange No. 201, Orange No. 206, Yellow No. 201, Yellow No. 204, Green No. 202
No., Purple No. 201, Red No. 501, Red No. 505, Orange No. 403, Yellow No. 404, Yellow No. 405, Blue No. 403
No .: Disperse dyes Red No. 215, Red No. 218, Red No. 223, Red No. 225, Orange No. 201, Orange No. 206
No. 201, Yellow No. 204, Yellow No. 204, Green No. 202, Purple No. 201, Red No. 501, Red No. 505, Yellow No. 404
No. 405, Yellow No. 403 and basic dyes such as Red No. 213 and Red No. 214.

Among these direct dyes, acidic dyes are particularly preferred, and among them, yellow No. 4, green No. 204 and red No. 2
No., Red No. 102, Green No. 3, Blue No. 1, Blue No. 205
No. Yellow 403, Red No. 106, Red No. 201, Orange No. 205, Black No. 401, Green No. 201 or Purple 401
No. 401 is preferable, and among them, black No. 401 and purple 4
No. 01, orange 205, yellow 403 or red 106 are preferred.

One or more of the above direct dyes are used in the hair cosmetic of the present invention. The compounding amount with respect to the hair cosmetic composition of the present invention is preferably 0.01 to 5%, more preferably 0.02 to 2%.

The aromatic sulfonic acids preferably used in the hair cosmetic of the present invention include naphthalene sulfonic acids, azulene sulfonic acids and benzene sulfonic acids. Examples of the naphthalenesulfonic acid include those represented by the following general formula (5).

[0029]

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Specific examples of the naphthalenesulfonic acids include 1- or 2-naphthalenesulfonic acid, 2,7-naphthalenedisulfonic acid, 1,5-naphthalenedisulfonic acid, 2,6-naphthalenedisulfonic acid, 1,3, 6-naphthalene trisulfonic acid, 1-naphthol-2-sulfonic acid, 1-naphthol-4-sulfonic acid, 2-naphthol-6-sulfonic acid, 2-naphthol-7-sulfonic acid, 1-naphthol-3,6 -Disulfonic acid, 2-naphthol-3,6-disulfonic acid, 2-naphthol-6,
8-disulfonic acid, 2,3-dihydroxynaphthalene-
6-sulfonic acid, 1,7-dihydroxynaphthalene-3
-Sulfonic acid, chromotropic acid (4,5-dihydroxynaphthalene-2,7-disulfonic acid), 3,6-dihydroxynaphthalene-2,7-disulfonic acid, S acid (1
-Amino-8-naphthol-4-sulfonic acid), gamma acid (2-amino-8-naphthol-6-sulfonic acid),
J acid (2-amino-5-naphthol-7-sulfonic acid), H acid (1-amino-8-naphthol-3,6-disulfonic acid), 7-amino-1,3-naphthalenedisulfonic acid, 1- Amino-2-naphthol-4-sulfonic acid, 1-naphthylamine-4-sulfonic acid, broenazic acid (2-naphthylamine-6-sulfonic acid), cravezuic acid (1-naphthylamine-7-sulfonic acid), 2-
Naphthylamine-1-sulfonic acid, 1-naphthylamine-6-sulfonic acid, 1-naphthylamine-8-sulfonic acid, 4-amino-5-hydroxy-8-phenylazo-
2,7-naphthalenedisulfonic acid, 4-amino-8-
(4-carboxyphenylazo) -5-hydroxy-
2,7-naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-phenylazo-2-naphthalenesulfonic acid, 4-amino-8- (4-carboxyphenylazo)
-5-hydroxy-1-naphthalenesulfonic acid, 7-amino-4-hydroxy-1-phenylazo-2-naphthalenesulfonic acid, 8-amino-5- (4-carboxyphenylazo) -2-naphthalenesulfonic acid, -Amino-3- (4-carboxyphenylazo) -5-hydroxy-1-naphthalenesulfonic acid, 6-amino-4-hydroxy-5-phenylazo-2-naphthalenesulfonic acid, 2,7-diamino-1-naphthol -3-sulfonic acid, 7,8-diamino-1-naphthol-3-sulfonic acid, naphthalenesulfonic acid formalin polycondensate (weight average condensation degree 2 to 100), 6-methyl-2-naphthalenesulfonic acid, 4- Ethyl-1-naphthalenesulfonic acid, 5
-Isopropyl-1-naphthalenesulfonic acid, 5-butyl-2-naphthalenesulfonic acid or salts thereof. Among them, 2-naphthalenesulfonic acid, 1,5
-Naphthalenedisulfonic acid, 2,6-naphthalenedisulfonic acid, chromotropic acid, 1-naphthalenesulfonic acid, H acid (1-amino-8-naphthol-3,6-disulfonic acid), 2,7-naphthalenedisulfonic acid, Particularly preferred are naphthalenesulfonic acid polycondensates (weight average degree of condensation of 2 to 50) and salts thereof. In addition, examples of these salts include sodium salts, potassium salts, lithium salts, calcium salts, ammonium salts, and organic quaternary ammonium salts.

The azulene sulfonic acids include, for example, guaiazulene sulfonic acid, 1-azulene sulfonic acid, 3
-Acetyl-7-isopropyl-1-azulenesulfonic acid, 3- (2-hydroxyethyl) -7-isopropyl-1-azulenesulfonic acid, 3-methyl-7-isopropyl-1-azulenesulfonic acid, 7-isopropyl- 1
-Azulenesulfonic acid, 3-phenyl-6-isopropyl-1-azulenesulfonic acid, 1,4-dimethyl-7-
Isopropyl-2-azulenesulfonic acid, 4-ethoxy-3-ethyl-6-isopropyl-1-azulenesulfonic acid, 1,3-azulenedisulfonic acid, 4,6,8-trimethyl-1,3-azulenedisulfonic acid, 1,3-bis (1,1-dimethylethyl) -5,7-azulenedisulfonic acid, 1,3-bis (1,1-dimethylethyl)-
5-azulenesulfonic acid, 3-formyl-4,6,8-
Trimethyl-1-azulenesulfonic acid or a salt thereof is exemplified. These salts include sodium salts, potassium salts, calcium salts, ammonium salts, and organic quaternary ammonium salts.

As the benzenesulfonic acids, for example, the following general formula (6)

[0033]

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Compounds represented by the following formulas are mentioned. Preferred examples include sodium 6-tetralin sulfonate,
Examples thereof include 5-indanesulfonic acid, benzenesulfonic acid, toluenesulfonic acid, xylenesulfonic acid, alkylbenzenesulfonic acid, and salts thereof.

The content of the above aromatic sulfonic acids in the hair cosmetic of the present invention is preferably 0.1 to 10%, more preferably 1 to 5%.

Specific examples of the organic carboxylic acid having a hydroxy group preferably used in the hair cosmetic of the present invention include:
Citric acid, lactic acid, glycolic acid and the like.

The amount of the organic carboxylic acid having a hydroxy group to be added to the hair cosmetic composition of the present invention is preferably 0.1 to 10%, more preferably 1 to 5%.

The hair cosmetic composition of the present invention may contain optional components commonly used in hair cosmetic compositions as long as the effects of the present invention are not impaired. Examples of the optional component include various surfactants other than the component (B), cationic polymers, silicone derivatives, astringents such as aluminum polypyrrolidonecarboxylate, aluminum chloride, birch extract, hyaluronic acid, ceramide-related substances, and the like. Examples include humectants, thickeners such as xanthan gum and hydroxyethyl cellulose, ultraviolet absorbers, fragrances, preservatives, and pigments.

The hair cosmetic composition of the present invention comprises the components (A) to
It is prepared by dissolving and dispersing (C), the functional substance (D) and, if necessary, the above-mentioned optional components in a conventional manner in a solvent usually used for hair cosmetics.

The hair cosmetic composition of the present invention containing the components (A) to (C) may be used after being applied to hair and rinsed off without leaving or leaving, as in the case of ordinary rinsing or treatment. .

The hair cosmetic composition of the present invention, which further contains the functional substance (D) in addition to the components (A) to (C), may be left at room temperature after being applied to the hair and rinsed. In particular, it is preferable to heat after application to the hair.

[0042]

The hair cosmetic composition of the present invention is excellent in smoothness when rinsing or when drying with a towel, does not feel sticky or heavy when drying, and has excellent flexibility. Moreover, it is possible to improve the physical properties of the hair by further adding various functional substances. For example, by adding a direct dye, a hair dyeing effect such as suppressing the conspicuousness of the gray hair and hiding the gray hair is improved by adding an aromatic sulfonic acid to the hair. High flexibility is added to each.

[0043]

EXAMPLES The present invention will be described below in more detail with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 3 and Comparative Examples 1 to 4 Conditioners having the compositions shown in Table 1 were prepared according to a conventional method, applied to shampooed hair, rinsed and dried. Smoothness when drying towels, flexibility when drying,
The sticky feeling during drying was evaluated by the following method. Table 1 also shows the results.

(Evaluation Method) Healthy Japanese Female Hair 20
g (15 cm) after shampooing, Example 1 shown in Table 1
-3 and Comparative Examples 1-4 were applied, rinsed and dried. About smoothness at the time of towel drying, flexibility at the time of drying and stickiness at the time of drying,
The evaluation was performed by 10 expert panelists according to the following criteria.

Smoothness during towel drying ◎: No squeakiness, very smooth ○: Slight squeakiness, smooth △: Slightly squeaky, lacks smoothness ×: Strong squealiness, not smooth

Flexibility during drying ：: very soft and supple ○: soft △: lacks softness ×: rough

Stickiness at the time of drying ：: Non-stickiness, crispness △: Slightly sticky X: Sticky

[0049]

[Table 1]

Example 4 A conditioner having the following composition was prepared according to a conventional method. Composition (wt%) Tallow alkyl composition Dimethylamine oxide 5 Cetyl alcohol 2 Ethanol 15 Benzyl alcohol 5 Polyether-modified silicone (KF353A manufactured by Shin-Etsu Chemical Co., Ltd.) 1 Citric acid 5 Sodium hydroxide Appropriate amount Purified water Balance pH is 4.5 there were.

The obtained conditioner was excellent in smoothness when drying with a towel, flexibility when drying, and non-stickiness when drying.

Example 5 A conditioner having the following composition was prepared according to a conventional method. Composition (% by weight) Didecylmonomethylamine oxide 6 Behenic acid 2,1,3-butanediol 20 2-benzyloxyethanol 7 Isostearyl glyceryl ether 3 Phosphate 5 Hydroxyethylcellulose 1.5 Sodium hydroxide Appropriate amount Purified water Balance pH 3 0.0.

The obtained conditioner was excellent in smoothness when drying with a towel, flexibility when drying, and non-stickiness when drying.

Example 6 A conditioner having the following composition was prepared according to a conventional method. Composition (% by weight) myristyl dimethylamine oxide 5 cetyl alcohol 2 ethanol 15 2-benzyloxyethanol 4 tartaric acid 2 phosphoric acid 4 orange No. 205 0.05 red No. 106 0.03 hydroxyethylcellulose 1.5 sodium hydroxide proper amount purified water balance pH was 3.5.

The obtained conditioner was applied to the hair after shampooing, left for 5 minutes and rinsed. When the above operation was repeated seven times in succession, it was recognized by a specialized panelist that the hair looked slightly brighter than the hair before use. Further, the conditioner was excellent in smoothness when drying the towel, flexibility when drying, and non-stickiness when drying.

Example 7 A conditioner having the following composition was prepared according to a conventional method. Composition (% by weight) Palm alkyl composition Dimethylamine oxide 5 Isostearate 2 N-methylpyrrolidone 15 Ethyl carbitol 5 Sodium naphthalene sulfonate 1 Phosphate 5 Hydroxyethyl cellulose 1.5 Sodium hydroxide Appropriate amount Purified water Balance pH was 2.5 Was.

The conditioner obtained was applied to the hair after shampooing, left for 5 minutes and rinsed. When the above operation was repeated 10 times continuously, it was recognized by a specialized panelist that the hair was firmer than the hair before use. In addition, the conditioner was excellent in smoothness in drying the towel, flexibility in drying, lack of stickiness in drying, and the like.

Example 8 A conditioner having the following composition was prepared according to a conventional method. Composition (% by weight) Palm alkyl composition Dimethylamine oxide 5 Cetyl alcohol 2 Ethanol 20 2-Benzyloxyethanol 5 Glycolic acid 7 Phosphate 3 Hydroxyethylcellulose 1 Sodium hydroxide Appropriate amount Purified water Balance pH was 3.0.

The obtained conditioner was applied to the hair after shampooing, left for 5 minutes and rinsed. When the above operation was repeated 10 times continuously, it was confirmed by a specialized panelist that the hair was particularly excellent in flexibility when dried as compared with the hair before use. In addition, smoothness when drying towels,
It was also excellent in non-stickiness when dried.

Example 9 A conditioner having the following composition was prepared according to a conventional method. Composition (% by weight) Stearyl dimethylamine oxide 5 Cetyl alcohol 2 Propylene glycol 15 Benzyl alcohol 4 Lactic acid 7 Phosphate 3 Sodium hydroxide Appropriate amount Purified water Balance The pH was 3.5.

The conditioner obtained was applied to the hair after shampooing, left for 5 minutes and rinsed. When the above operation was repeated 10 times continuously, it was confirmed by a specialized panelist that the hair was particularly excellent in flexibility during drying as compared with the hair before use. In addition, it was excellent in smoothness when drying the towel and non-stickiness when drying.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-49218 (JP, A) WO 89/2731 (WO, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A61K 7/075

Claims (2)

(57) [Claims] 1. The following components (A), (B) and (C): (A) 0.1 to 10% by weight of a long-chain alkylamine oxide; (B) a compound represented by the following general formula (1); One or more organic solvents selected from the compounds represented by (2) and alkylene carbonates having 1 to 4 carbon atoms 0.5 to 40% by weight [Wherein, R ¹ represents a hydrogen atom, a lower alkyl group or a group A joint or a saturated or unsaturated divalent hydrocarbon group having 1 to 3 carbon atoms), Y and Z each represent a hydrogen atom or a hydroxyl group, and p, q and r each represent a number of 0 to 5. Where p = q =
When r = 0 and Z = H, and when p = q = r = 0 and R ¹ =
Except when H, Z = OH) (In the formula, R ⁴ represents a linear or branched alkyl group having 1 to 18 carbon atoms.) (C) 0.5 to 10% by weight of an oil agent having an HLB of 5 or less and a pH of 2 to 5 A hair cosmetic selected from rinses, treatments and conditioners. 2. The composition according to claim 1, further comprising one or more of the following components (D) and (D) functional dyes selected from direct dyes, aromatic sulfonic acids and organic carboxylic acids having a hydroxy group. Hair cosmetics.