JPH01153611A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic capable of simultaneously providing hair after washing and drying with smoothness and moist feeling, by using a specific cationic surfactant, specific anionic surfactant and a quaternized protein derivative. CONSTITUTION:(A) A cationic surfactant shown by formula I [1-2 of R1-R4 are R or group shown by formula II (R is 10-24C alkyl or 10-24C hydroxyalkyl; n is 1-10 integer) and the rest is 1-3C alkyl, group shown by formula III (m is 1-5 integer; R5 is H or CH3), benzyl or cinnamyl; X is halogen or 1-2 alkylsulfate group] is blended with (B) an anionic surfactant shown by formula IV-formula VI (R6, R8 and R9 are 12-22C alkyl; R7 is CH2COOX' or CH2CH2SO3X'; X and X' are H, Na or K or further X is triethanolamine) and (C) a quaternized protein derivative as essential components to give a hair cosmetic showing the above-mentioned effects.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to hair cosmetics, and particularly to hair cosmetics that can impart smoothness and moisturizing to hair.

(Conventional technology) In order to improve hair problems after washing, hair rinse,
Hair cosmetics such as hair treatments and hair conditioners are used. Its main purpose is to add lubricity and moisturizing properties to the hair, giving it a smooth texture and
It gives a smooth brush stroke and is moisturized.
The purpose is to have hair that is free from dryness and easy to manage.

In particular, young women these days have a strong tendency to prefer a smooth and light finish, so it is necessary to give their hair a smooth finish that is moisturized but not sticky.

Hair cosmetics that have cationic surfactants, such as quaternary ammonium salts, as their main ingredients have been proposed as hair cosmetics that achieve this purpose, but all of them have problems with their adsorption and release properties from hair. Therefore, sufficient effects could not be obtained. Therefore, methods have been proposed in which various oils are used in combination with cationic surfactants to enhance their effects.

However, when oil is used in combination, there is a problem that the effect applied to the hair is biased depending on the properties of the oil. For example, if an oil with excellent lubricity such as silicone is added, smoothness and brushability will be improved, but on the other hand, the moisturizing effect will be lacking and the finish will feel dry. Also, when oils with excellent moisturizing effects, such as Vaseline, are added, the hair is moisturized but lacks smoothness, giving the hair a sticky and heavy feel. Furthermore, the blending of these oils causes problems such as a slimy feeling during application and a deterioration of smoothness during rinsing. The sensation of use, such as slimy feeling during application and smoothness during rinsing, is also an important characteristic of hair cosmetics and cannot be underestimated.

(Problems to be Solved by the Invention) An object of the present invention is to provide a hair cosmetic that imparts a smooth and moist feeling to the hair and has an excellent feeling of use, such as a slimy feeling when applied and a smooth feeling when rinsing. The purpose is to provide

(Means for Solving the Problems) As a result of intensive research in order to achieve the above object, the present inventor has discovered that, in addition to cationic surfactants, amino acid-based anionic surfactants and quaternized products of protein derivatives By using it together, you can simultaneously obtain the lubricating effect and moisturizing effect that could not be obtained with the conventional combination of cationic surfactant and oil, and you can also get an excellent feeling of use. This finding led to the present invention.

That is, the hair cosmetic of the present invention comprises a cationic surfactant represented by the following general formula (1), and the following general formulas (2) and (3).
), or an anionic surfactant represented by (4);
It is characterized by containing a quaternized product of a protein derivative.

[In the formula, any one or two of R□ to R4 is an alkyl group having 10 to 24 carbon atoms, a hydroxyalkyl group having 10 to 24 carbon atoms, or a compound of the general formula R (CH2CH20 squares)
(However, R is an alkyl group having 10 to 24 carbon atoms or a hydroxyalkyl group having 10 to 24 carbon atoms, and n is an integer of 1 to 10.), and the rest are groups having 1 to 24 carbon atoms.
3 is an alkyl group represented by the general formula -GCHCH20-)- (where m is an integer of 1 to 5, R5 is H or CH3), a benzyl group, or a cinnamyl group, and X is a halogen atom or It is an alkyl sulfate group having 1 or 2 carbon atoms. ] (In the formula, R6 is an alkyl group having 12 to 22 carbon atoms, R7 is CH2C00X or CH2CH2SO3X,
X is HSNa or K. )X OOCCH2CH2
CHC00X...(3)\R8Co-NH (wherein, R8 is an alkyl group having 12 to 22 carbon atoms, and X is H
, Na, K or triethanolamine. ) Rg CON (CH3)CH2CH2COONa...
-(4) (R9 is an alkyl group having 12 to 22 carbon atoms.) Specific examples of the cationic surfactant which is the first essential component of the present invention include stearyltrimethylammonium chloride, cetostearyltrimethylammonium chloride, Examples include distearyldimethylammonium bromide, stearyldimethylbenzylammonium chloride, behenyltrimethylammonium bromide, cetyltrimethylammonium iodide, and one or more of these can be used.

The amount of the cationic surfactant, which is the first essential component of the present invention, is usually 0.1 to 10% by weight, preferably 0.2 to 5% by weight, based on the total hair cosmetic composition. 0.1
If the amount is less than 10% by weight, the effect of the present invention will not be fully exhibited, and if it exceeds 10% by weight, the hair will tend to feel sticky and have a heavy finish.

The second essential component of the present invention is an anionic surfactant represented by formulas (2) to (4) above.

Specific examples of the anionic surfactant represented by formula (2) include:
Lauroyl sarcosine, myristoyl sarcosine, balmitoyl sarcosine, stearoyl sarcosine, beheroyl sarcosine, N-cocoyl methyl taurine, N-myristoyl methyl taurine, N-palmitoyl methyl taurine, N-stearoyl methyl taurine, N-beheroyl methyl taurine , and their salts.

Specific examples of the anionic surfactant represented by formula (3) include:
Monosodium N-cocoyl-glutamate, N-
Stearoyl-L-glutamate monosodium, N-
Valmitoyl-L-glutamate monotriethanolamine, N-myristoyl-disodium glutamate, and the like can be mentioned.

Specific examples of the anionic surfactant shown in formula (4) include:
N-cocoyl-N-methyl-β-alanine sodium,
Examples include sodium N-lauroyl-N-methyl-β-alanine and sodium N-myristoyl-N-methyl-β-alanine.

These anionic surfactants can be used alone or as a mixture of two or more. Among these, particularly preferred are sodium N-myristoylmethyltaurine, N-lauroylmethyltaurine, lauroylsarcosine, and the like.

The amount of anionic surfactant, which is the second essential component of the present invention, is usually 0.05 to 5% by weight, preferably 0.1 to 3% by weight, based on the entire hair cosmetic. 0.0
If the content is less than 5% by weight, the effects of the present invention will not be fully exhibited, and if it exceeds 5% by weight, storage stability will tend to deteriorate.

The fourth protein derivative which is the third essential component of the present invention
A graded product is a product obtained by adding a quaternary ammonium salt to a protein degradation product.

Examples of protein decomposition products include decomposition products of collagen protein, keratin protein, casein protein, and silk protein, and any protein decomposition products and derivatives thereof that are usually used in cosmetics may be used. , those having a molecular weight of 200 to 2000 are preferred.

The fourth protein derivative which is the third essential component of the present invention
The blending amount of the graded compound is usually 0.0 to the entire hair cosmetic.
5 to 10% by weight, preferably 0.1%. ~5% by weight
It is. If the content is less than 0.05% by weight, the effects of the present invention may not be exhibited, and if it exceeds 10% by weight, storage stability tends to deteriorate.

For the hair cosmetic of the present invention, optional ingredients such as emulsion stabilizers, cold stabilizers, colorants, fragrances, thickeners, bactericides, etc. may be added to the extent that the effects of the present invention are not affected. I can do it. Furthermore, if necessary, it is also possible to incorporate a performance improver for the desired effect to the extent that the effects of the present invention are not lost.

(Effects of the Invention) According to the hair cosmetic of the present invention, it is possible to simultaneously impart excellent smoothness and moisturizing effects to hair after washing and drying, and therefore, it is popular among young women in recent years. It is possible to obtain the desired finishing performance that is moist but not sticky and has a smooth feel. In addition, the slimy feeling of the applied area and the deterioration of the smooth feel during rinsing, which could not be achieved with conventional hair cosmetics using oil, were also improved.

The hair cosmetic of the present invention can be applied to rinsing type products used after hair washing, such as hair rinses, hair conditioners, and hair treatments.

(Example) Examples and comparative examples of the present invention will be shown below to specifically explain the effects of the present invention.

In addition, before explaining each side, the preparation method and evaluation method of the test sample will be explained.

Preparation of test sample: The components of cationic surfactant, performance improver, higher alcohol, emulsifier, and solvent (glycerin, propylene glycol, etc.) are dissolved by heating to form an oil phase.

Next, purified water in which the pigment and the performance improver that is insoluble in the oil phase are dissolved is heated to 30 to 60°C, the oil phase is gradually added to this, and the mixture is emulsified using a homomixer (manufactured by Tokushu Kika Co., Ltd.). The sample was then cooled to room temperature to prepare a test sample. In addition, when blending a fragrance, it is added at the stage of the cooling process (30 to 40°C).

Women aged 21 to 36 (long hair,
(Within 2 months after the perm), using 10 people, the hair after washing was divided into two parts, and a standard product and a test sample shown in Table 1 below were applied to each part, and a sensory evaluation was performed using the left and right paired comparison method.

Table 1 Weight % Cetyltrimethylammonium chloride: 1.5 cetanol
:1.0 glycerin
:5.0POE (20) Glyceryl :1.
0 triisostearate purified water, the remainder evaluation criteria are as follows.

◎: Clearly superior to the standard product ○: Superior to the standard product △: Equal to the standard product ×: Inferior to the standard product Examples 1 to 3 Eight types of hair cosmetic compositions having the compositions shown in Table 2 below were prepared. and evaluated its performance. The results are shown in the same table.

As is clear from the table, a composition lacking any one of the essential components of the present invention (Comparative Example 1.2.5), a composition using an anionic surfactant outside the scope of the present invention (Comparative Example 4),
and a composition using a non-quaternized protein decomposition product (Comparative Example 3), none of which had excellent properties. In contrast, it can be seen that the compositions of the present invention (Examples 1 to 3) all exhibit excellent properties.

Example 4 A hair treatment having the composition shown in Table 3 below was prepared,
When its performance was evaluated, it showed excellent performance as shown in the same table.

Table 3-15 - Example 5 A hair rinse having the composition shown in Table 4 below was prepared and its performance was evaluated, and as shown in the table, it showed excellent performance.

Table 4

Claims (1)

[Scope of Claims] (1) A cationic surfactant represented by the following general formula (1), an anionic surfactant represented by the following general formula (2), (3), or (4), and a protein derivative 4th of
A hair cosmetic characterized by containing a graded product. ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(1) [In the formula, any one or two of R_1 to R_4 is an alkyl group having 10 to 24 carbon atoms, or a hydroxy group having 10 to 24 carbon atoms. Alkyl group or general formula ▲ Numerical formula, chemical formula, table, etc. ▼ (However, R is an alkyl group having 10 to 24 carbon atoms or a hydroxyalkyl group having 10 to 24 carbon atoms, and n is an integer of 1 to 10. ), and the rest are alkyl groups with 1 to 3 carbon atoms, general formula ▲ Numerical formula, chemical formula, table, etc. ▼ (however, m is an integer from 1 to 5, R_5 is H or CH_3) , a benzyl group, or a cinnamyl group, and X is a halogen atom or an alkyl sulfate group having 1 or 2 carbon atoms. ] ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(2) (In the formula, R_6 is an alkyl group having 12 to 22 carbon atoms, R_
7 is CH_2COOX or CH_2CH_2SO_3
X, and X is H, Na or K. ) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(3) (In the formula, R_8 is an alkyl group having 12 to 22 carbon atoms, and X is H, Na, K, or triethanolamine.) R_9CON(CH_3 )CH_2CH_2COONa
...(4) (R_9 is an alkyl group having 12 to 22 carbon atoms.) (
2) The hair cosmetic according to claim 1, wherein the quaternized product of the protein derivative is a product obtained by adding a quaternary ammonium salt to a protein decomposition product. (3) Claim 1 or 2, wherein the protein derivative is a hydrolyzate of collagen protein, keratin protein, casein protein, or silk protein.
Hair cosmetics described in Section 1.