JP2665292B2 - 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 which contains components that give the hair a good finger-thinness by rinsing and a luster and smoothness to the hair after drying. It relates to hair cosmetics.

[0002]

2. Description of the Related Art Hair cosmetics such as rinses and treatments are generally used to supplement oils in hair after washing. Conventionally, as these hair cosmetics, there are those to which a quaternary ammonium salt represented by an alkyltrimethylammonium salt or a dialkyldimethylammonium salt is added as a component for supplementing smoothness to the hair. .

[0003]

However, hair cosmetics containing the above quaternary ammonium salt do not adsorb an appropriate amount to the hair after shampooing. There is a problem that the gloss and smoothness of the hair are not sufficient.

[0004] Furthermore, quaternary ammonium salts generally cause skin irritation in a concentrated solution, and hair cosmetics containing this component are required to label the component. Therefore, it is preferable not to mix the quaternary ammonium salt in cosmetics from the viewpoint of safety.

[0005] The present invention solves the above-mentioned problems, and provides a hair cosmetic composition which is excellent in the effect of rubbing fingers through rinsing, the effect of imparting gloss and smoothness to dried hair, and which is excellent in safety. The purpose is to provide.

[0006]

The hair cosmetic composition of the present invention comprises 0.5 to 20% by weight of an amino acid and 0.01 of an organic acid.
The gist of the invention is that it contains ５5% by weight and 0.5 to 10% by weight of a surfactant. Examples of the amino acids used in the present invention include L-tyrosine, L-tryptophan, glycine, L-valine, L-alanine, L-cystine, L-isoleucine, L-serine, L-leucine, L-leucine,
-Cysteine, L-threonine, L-phenylalanine, L-cysteic acid, L-proline, L-aspartic acid, L-glutamic acid, L-histidine, L-arginine, L-lysine and the like. One or more of the above amino acids are selected and blended into the hair cosmetic. Among the above-mentioned amino acids, in particular, glycine, L-isoleucine, L
-Proline, L-histidine, L-alanine, L-arginine, L-lysine are preferred. The amount of amino acids
It is 0.5 to 20% by weight based on the hair cosmetic. If the amount of the amino acid is less than 0.5% by weight, the effect of giving gloss and smoothness to the dried hair cannot be obtained. Also,
If the amount of the amino acid is more than 20% by weight, there is a problem that the dried hair feels sticky. When the amount of the amino acid is 1.0 to 15% by weight, the effect of imparting even better gloss and smoothness to the dried hair is obtained, which is preferable.

Further, as the organic acid used in the present invention, for example, tartaric acid, malic acid, citric acid, lactic acid and the like can be used. Organic acids adjust the pH in hair cosmetics,
Amino acids become cationic and play a role in facilitating adsorption to hair. 0.01-5 for hair cosmetics.
Incorporation of 0% by weight of an organic acid provides a pH at which amino acids are easily adsorbed on hair.

In order for the hair cosmetic of the present invention to exhibit a sufficient effect, it is necessary to make the hair cosmetic creamy, apply it to the hair, and then adhere it to the hair for a predetermined time. Therefore, a surfactant is added in an amount of 0.5 to 10% by weight. When the amount of the surfactant is less than 0.5% by weight,
The components of the hair cosmetic are separated during storage, and the cream state cannot be maintained. Further, if the amount of the surfactant is more than 10% by weight, no further effect can be obtained.

When the surfactant is a taurine derivative and / or an amino acid derivative, a stable creamy hair cosmetic is obtained, which is particularly preferable. The taurine derivatives that can be used in the present invention, as illustrated the general formula expressed by the following chemical formula (1) N- acyl -N- alkylamino ethane scan <br/> sulfonic acid (i.e. N- acyl -N- alkyltaurines) And its salts can be used. Chemical formula (1):

[0010]

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R ¹ : alkyl group having an average of 9 to 21 carbon atoms R ² : linear or branched alkyl group having 1 to 4 carbon atoms M ¹ : hydrogen or alkali metal, alkaline earth metal, alkanolamine, basic amino acid Examples of N-acyl-N- alkyltaurine represented by the chemical formula (1) and salts thereof include N-lauroyl-N-methyltaurine, N-myristoyl-N-methyltaurine, and N-palmitoyl-N -Methyltaurine,
N-stearoyl-N-methyltaurine and their monoethanolamine, diethanolamine, triethanolamine, sodium and potassium salts can be used. Two or more of the above-mentioned N-acyl-N- alkyltaurines may be selected and mixed for use.

The amino acid derivative which can be used in the present invention includes N-type compound represented by the following chemical formula (2).
-Acylglutamic acid or a salt thereof can be used. Chemical formula (2):

[0013]

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R ¹ , M ¹ : the same as that represented by the chemical formula (1) M ² : the same as that of M ^{1 As the} N-acylglutamic acid and its salt represented by the chemical formula (2), for example, N-coconut Fatty acid acylglutamate monotriethanolamine oil, N-coconut fatty acid monosodium glutamate, monosodium N-lauroylglutamate, monosodium N-myristoylglutamate, monosodium N-stearoylglutamate, N-hardened tallow fatty acid Acylglutamic acid, N-lauroylglutamic acid lysine salt, and mixtures thereof can be used.

The amino acid derivative which can be used in the present invention includes N-type compound represented by the following chemical formula (3).
-Acyl-N-alkyl amino acids or salts thereof can also be used. Chemical formula (3):

[0016]

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R ¹ , R ² , M ¹ : the same as those represented by the chemical formula (1) m: an integer of 1 or 2 N-acyl-N-alkylamino acids as represented by the chemical formula (3) and salts thereof Is, for example, N-lauroyl-N-ethylglycine, N-lauroyl-N-isopropylglycine, N-lauroylsarcosine, N-myristoylsarcosine, N-palmitoylsarcosine, N
-Lauroyl-N-methyl-β-alanine, N-myristoyl-N-methyl-β-alanine, N-palmitoyl-N-methyl-β-alanine and their monoethanolamine, diethanolamine, triethanolamine salts, Sodium and potassium salts can be used. Two or more of the above N-acyl-N-alkyl amino acids may be selected and used as a mixture.

Among the above-mentioned amino acid derivatives and taurine derivatives, N-acyl-N- alkyltaurine represented by the general formula (1) and salts thereof are particularly preferred as the surfactant. According to the present invention, it is possible to provide a hair cosmetic composition that is excellent in imparting gloss and smoothness to hair after drying and has excellent effects of imparting gloss and smoothness to hair after rinsing, and that is excellent in safety. It is considered that this is due to That is, by using an amino acid and an organic acid in combination instead of a quaternary ammonium salt as an active ingredient of a hair cosmetic, the amino acid becomes cationic, and since this cationic amino acid has a high adsorptivity to hair, Improves the smoothness of hair by rinsing and the effect of giving gloss and smoothness to hair after drying. Furthermore, by adding a surfactant, the hair cosmetic can be kept in a creamy state stably for a long period of time, and when applied to the hair, it does not drool off and absorbs the active ingredient onto the hair. Cheap.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, preferred embodiments of the present invention will be described below. (Note that the hair cosmetics listed as Examples and Comparative Examples were prepared by a conventional method.) <Examples 1 and 2 and Comparative Examples 1 to 4> Hair cosmetics having the compositions shown in Table 1 were used in Examples 1 and 2. 2 and Comparative Examples 1-4.

[0020]

[Table 1]

Examples 1 and 2 all contain glycine as an amino acid, tartaric acid as an organic acid, and sodium myristoylmethyltaurine as a surfactant. The hair cosmetics of Examples 1 and 2 and Comparative Examples 1 to 4 were tested as follows. That is, a hair cosmetic sample was added to a shampooed hair bundle (5 g, 20 cm).
Apply 5g directly, spread evenly by hand, rinse off, 2
It was dried in an atmosphere of 5 ° C. and 65% RH, and left overnight. About this hair bundle, ten panelists visually and sensually evaluated the finger fluency of the rinsed hair and the luster and smoothness of the hair after drying. The evaluation was performed in the following five stages, and the evaluation with the largest number of persons was taken as a representative.

◎: Good ○: Somewhat good Δ: Neither can be said ×: Somewhat bad XX: Bad Table 2 shows the evaluation results.

[0023]

[Table 2]

As apparent from the results in Table 2, Example 1
And the hair cosmetics of Nos. 2 and 3 were superior to the hair cosmetics of Comparative Examples 1 to 4 in terms of excellent finger performance in rinsing and excellent gloss and smoothness on dried hair. have. <Examples 3 and 4 and Comparative Examples 5 to 7> Hair cosmetics having the compositions shown in Table 3 were prepared as Examples 3 and 4 and Comparative Examples 5 to 7.

[0025]

[Table 3]

In Examples 3 and 4, sodium myristoylmethyltaurine, a taurine derivative, was incorporated as a surfactant within the scope of the present invention, whereas Comparative Examples 5 to 7 contained the surfactant of the present invention. Only the amount less than the amount is blended. The hair cosmetics of Examples 3 and 4 and Comparative Examples 5 to 7 were visually evaluated for the condition after storage at 50 ° C. for one month, and the stability was examined. Table 3 shows the evaluation results.

As is clear from the results in Table 3, Example 3
While the hair cosmetics of Nos. 4 and 4 did not separate even after storage and were in a stable creamy state, the hair cosmetics of Comparative Examples 5 to 7 were separated and could not be kept in a creamy state.
Therefore, according to the present embodiment, it is possible to obtain a creamy hair cosmetic that is stable even after storage, and it is possible to adhere the hair cosmetic to hair for a predetermined time. Example 5 A hair cosmetic having the following composition was prepared as a hair rinse.

Squalane 2.0% by weight Cetanol 1.0% by weight Glyceryl monostearate 0.5% by weight Glycerin 3.0% by weight L-alanine 6.0% by weight Citric acid 0.3% by weight sodium lauroylmethyltaurine 1 0.5% by weight of sodium lauroyl glutamate 0.5% by weight of preservative trace amount of pigment trace amount of fragrance trace amount of purified water Remainder The hair rinse of this example was carried out in the same manner as in Examples 1 and 2 to ensure that the hair passed through the fingers by rinsing. When the performance of imparting gloss and smoothness to the dried hair was tested, excellent results were obtained as in Examples 1 and 2. When the stability of the cream was tested in the same manner as in Examples 3 and 4, excellent results were obtained as in Examples 3 and 4. Example 6 A hair cosmetic having the following composition was prepared as a hair treatment.

Liquid paraffin 3.0% by weight Cetanol 2.5% by weight Stearyl alcohol 2.0% by weight Glyceryl monostearate 2.0% by weight Lanolin 0.5% by weight Glycerin 5.0% by weight L-proline 5.0 % By weight Malic acid 0.3% by weight Sodium palmitoylmethyltaurine 1.0% by weight Sodium lauroyl sarcosine 1.0% by weight Preservative trace amount pigment trace amount fragrance trace amount purified water Remainder About the hair treatment of this example,
In the same manner as in Example 1, the hair was rinsed with fingers and the ability to impart gloss and smoothness to the dried hair was tested. As a result, excellent results were obtained as in Examples 1 and 2. When the stability of the cream was tested in the same manner as in Examples 3 and 4, excellent results were obtained as in Examples 3 and 4.

As described above, according to the present embodiment, the hair is excellent in finger rinsing and the effect of imparting luster and smoothness to the dried hair, and also excellent in safety. A cosmetic is obtained. In addition, a stable creamy hair cosmetic which does not separate during storage can be obtained.

The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

[0032]

As described above in detail, according to the hair cosmetic of the present invention, the hair has good finger-thinness after rinsing, and is excellent in imparting gloss and smoothness to dried hair, and A hair cosmetic with excellent safety can be provided.

Claims (2)

(57) [Claims] 1. A hair cosmetic comprising 0.5 to 20% by weight of an amino acid, 0.01 to 5% by weight of an organic acid and 0.5 to 10% by weight of a surfactant. 2. The method according to claim 1, wherein the surfactant is N-acyl-N-A
Lucirtaurine, N-acylglutamic acid, N-acyl
1 selected from -N-alkylamino acids and salts thereof
The hair cosmetic according to claim 1, wherein the hair cosmetic is a seed or two or more kinds .