JPS635006B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a hair cosmetic composition. In recent years, hair has been brushed. Due to the widespread use of perms, hair coloring, etc., we are living in an environment that is extremely easy to damage. Consumers often complain that their hair is dry and unsmooth, lacks shine, and has poor brushability. Therefore, there is a desire for hair cosmetics that can firm and soothe hair and improve shine and brushability. In addition, since hair comes into direct contact with the skin of the nape of the neck and is always touched by hands when caring for it, a sticky and heavy feel is completely disliked. Therefore, a stable emulsion system without stickiness is also a desirable condition for hair cosmetics. However, there are no conventional hair cosmetics that have all of the above-mentioned properties.
That is, since conventional hair cosmetics contain a large amount of oil, they often have a heavy finish and remain sticky for a long time. On the other hand, attempts have been made to reduce the amount of oil in hair cosmetics to achieve a light and smooth finish to the hair, but reducing the amount of oil slightly reduces stickiness, but The gloss and brushability will be significantly reduced. An object of the present invention is to provide a gel-like hair cosmetic composition with good dispersion stability that can make hair moisturized, improve brushability, reduce stickiness, and make hair easier to comb. That's true. That is, this invention provides 0.1 to 5% by weight of
a mono-N-long chain acyl basic amino acid lower alkyl ester salt whose acyl group has 8 to 22 carbon atoms;
0.7 to 5% by weight of linear saturated alcohol having 14 to 22 carbon atoms, 0.1 to 2% by weight of sorbitan fatty acid ester, 0.1 to 2% by weight of polyglycerin fatty acid ester, and 0.5 to 10% by weight of polyvalent A hair cosmetic composition containing an alcohol or an alkylene oxide derivative thereof is provided. Examples of the basic amino acids constituting the mono-N-long chain acyl basic amino acid lower alkyl ester salt, which is the first essential component of the composition of the present invention, include natural amino acids such as ornithine, lysine, and arginine. Also, for example, α, γ
-Synthetic amino acids such as diaminobutyric acid can be used as well. These may be optically active or racemic. The acyl group constituting the mono-N-long chain acyl basic amino acid lower alkyl ester salt has 8 carbon atoms.
to 22 saturated or unsaturated fatty acid residues.
These may be natural or synthetic. For example, single fatty acid residues such as lauroyl, myristyl, palmitoyl and stearoyl groups as well as natural mixed fatty acid residues such as coconut oil fatty acid residues and beef tallow fatty acid residues can be employed. Mono N-long chain acyl basic lower alkyl ester salts include, for example, inorganic acid salts such as hydrochloride or sulfate, or, for example, acetate, tartrate,
Organic acid salts such as citrate, p-toluenesulfonate, fatty acid salts, acidic amino acid salts, or pyroglutamate can be employed. Among these, hydrochloride and L- or DL-pyrrolidone carboxylate are preferred. Suitable lower alkyl ester moieties include methyl ester, ethyl ester, propyl ester, butyl ester, pentyl ester, hexyl ester, heptyl ester and octyl ester. The amount of the mono N-long chain acyl basic amino acid lower alkyl ester salt is 0.1 to 5% by weight. The linear saturated alcohol having 14 to 22 carbon atoms, which is the second essential component of this invention, is the mono-N-
It forms a pair with a long-chain acyl basic amino acid lower alkyl ester salt and is adsorbed to the hair, particularly increasing the water retention capacity of the hair and calming the hair. If the number of carbon atoms in this saturated alcohol is 13 or less, the effect of calming the hair will be poor, and even if the number of carbon atoms exceeds 22, the water retention capacity of the hair will be low and the effect of calming the hair will be weak.
Furthermore, unsaturated alcohols do not pair efficiently with mono-N-long chain acyl basic amino acid lower alkyl ester salts and do not provide the above-mentioned properties to hair. The content of this saturated alcohol is 0.7 to 5% by weight.
It is. In order for the composition of this invention to be uniformly adsorbed on the hair surface and to exist as a stable dispersion composition to maintain its commercial value, in addition to the above-mentioned components, sorbitan fatty acid ester, polyglycerin fatty acid ester and polyvalent It is essential to contain three components: alcohol or its alkylene oxide addition derivative. The fatty acids constituting the sorbitan fatty acid ester, which is the third essential component of the composition of this invention, are saturated fatty acids and unfriable saturated fatty acids having side chains. Preferred fatty acids are caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, ricinoleic acid, isostearic acid, undecylenic acid, hydroxystearic acid, abietic acid, Isooctanoic acid, isohexadecanoic acid, 2
- Ethylhexadecanoic acid and lanolin fatty acids. The amount of sorbitan fatty acid ester blended is 0.1 to 2% by weight. The glycerin part of the polyglycerin fatty acid ester which is the fourth essential component of the composition of this invention is monoglycerin, diglycerin, triglycerin,
These include tetraglycerin, pentaglycerin, hexaglycerin, nonaglycerin, and decaglycerin. Regarding the fatty acids constituting the polyglycerol fatty acid ester, the same can be said as for the fatty acids constituting the sorbitan fatty acid ester described above. The blending amount of polyglycerin fatty acid ester is 0.1
and 2% by weight. Preferred specific examples of polyhydric alcohols or their alkylene oxide addition derivatives (excluding sorbitan fatty acid esters and polyglycerin fatty acid esters), which are the fifth essential component of this invention, include glycerin, polyglycerin (diglycerin , triglycerin, tetraglycerin, pentaglycerin, hexaglycerin, octaglycerin, nonaglycerin, decaglycerin, etc.), ethylene glycol, polyethylene glycol (preferably those with an average molecular weight of 200 to 600), propylene glycol, polypropylene glycol (average molecular weight of 200 1,3-butylene glycol, sorbitol, and the like. Further, as the alkylene oxide addition derivative thereof, ethylene oxide and propylene oxide addition derivatives are preferable. Preferred specific examples of alkylene oxide addition derivatives of polyhydric alcohols include polyoxypropylene sorbitol (preferably those with an average molecular weight of 200 to 700), polyoxyethylene sorbitol (preferably those with an average molecular weight of 200 to 700),
2800) and polyoxyethylene polyoxypropylene sorbitol (average molecular weight
300 to 2600 is preferred). The amount of polyhydric alcohol or its alkylene oxide addition derivative is 0.5 to 10% by weight. Other optional components can be added to the composition of the present invention as long as they do not affect the effects of the present invention. Such optional ingredients include various natural or synthetic oils, amino acids, herbal medicines, polymeric substances,
There are small amounts of ingredients such as disinfectants, fragrances, and pigments. The hair cosmetic composition of this invention can be applied in various forms such as hair lotion, hair conditioner, and hair rinse. Next, examples of the present invention and a comparison column will be shown to concretely demonstrate the effects of the present invention. Before explaining each example,
First, the test method adopted in each example will be explained. (1) Performance test After applying or spraying the sample composition on the hair at a ratio of 0.5 g to 10 g of hair, the moisturizing feeling, manageability, gloss, brushability, and dryness of the hair are sensory evaluated. The evaluation evaluated the performance of a typical, well-known general purpose rinse composition consisting of 1% by weight stearyltrimethylammonium chloride, 3% by weight cetyl alcohol, 10% by weight propylene glycol and 86% by weight water. 5 as standard
It is a graded evaluation. ◎: Good 〇: Fairly good △: Equal ×: Fairly inferior ××: Poor (2) Property test The sample composition was sealed in a 100ml glass container, and -5
Observe the appearance after storing for 6 months at ℃~40℃,
Its dispersion stability was evaluated. ○: No change △: Oil phase and water phase clearly separated Test Example 1 Eight sample compositions having the compositions shown in Table 1 were prepared, and their performance and properties were evaluated. The results are shown in the same table. As is clear from the same table, the effect of the present invention can be obtained even if any one of mono N-long chain acyl basic amino acid lower alkyl ester salt, saturated alcohol, sorbitan fatty acid ester, polyglycerin fatty acid ester, and polyhydric alcohol is missing. I understand that it cannot be achieved.

【table】

[Table] Examples 2 to 5 Four types of hair cosmetic compositions having the compositions shown in Table 2 were prepared, and their performance and properties were evaluated. The results are shown in the same table. As is clear from the table, the number of carbon atoms is 8 to 22
The effects of the present invention can be achieved when using a mono N-long chain acyl basic amino acid lower alkyl ester salt having a fatty acid residue of .

[Table] Examples 6 to 9 Four types of hair cosmetic compositions having the compositions shown in Table 3 were prepared, and their performance and properties were evaluated. The results are shown in the same table. From the same table, it can be seen that the effects of the present invention can be achieved when linear saturated alcohols having 14 to 22 carbon atoms are used. It is known that the effects of the present invention are not observed when alcohols having 13 or less carbon atoms or 23 or more carbon atoms or unsaturated alcohols are used.

[Table] Example 10 A hair treatment composition having the composition shown in Table 4 was prepared, and its performance and dispersion stability were evaluated.

【table】

[Table] This hair treatment composition showed excellent cohesiveness, moisturizing feeling, and brushability for hair, and had good dispersion stability. Example 11 A hair lotion composition having the composition shown in Table 5 was prepared and its performance and dispersion stability were evaluated.

【table】

【table】

Table: This hair lotion composition, like the hair treatment composition of Example 10, exhibited excellent performance and dispersion stability.

Claims (1)

[Claims] 1 0.1 to 5% by weight of a mono-N-long chain acyl basic amino acid lower alkyl ester salt whose acyl group has 8 to 22 carbon atoms; and 0.7 to 5% by weight.
a linear saturated alcohol having 14 to 22 carbon atoms;
A hair cosmetic composition containing 0.1 to 2% by weight of sorbitan fatty acid ester, 0.1 to 2% by weight of polyglycerin fatty acid ester, and 0.5 to 10% by weight of polyhydric alcohol or its alkylene oxide addition derivative.