JPH04128212A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic, having high adsorptivity of active ingredients on hair and capable of imparting excellent combing properties, pliability and gloss to the hair by using a specific guanidine derivative having amide group in the molecule and a protein derivative in combination. CONSTITUTION:A hair cosmetic is obtained by blending (A) one or more selected from a guanidine derivative, expressed by the formula (R<1> is 1-22C branched or straight-chain alkyl or alkenyl; A is 1-10C branched or straight-chain alkylene or alkenylene; (m) is 0 or 1; (n) is an integer of 1-5) and having amido group in the molecule and salts thereof and (B) a protein derivative normally used in cosmetics as essential ingredients in a hair cosmetic. The amounts of the ingredients based on the total cosmetic are preferably 0.05-10wt.%, especially 0.7-5wt.% ingredient (A) and normally 0.05-10wt.%, preferably 0.1-5wt.% ingredient (B). The aforementioned cosmetic has the abovementioned excellent effects.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention particularly relates to a hair cosmetic that can impart excellent combability, suppleness, and gloss to hair.

[Prior art and problems to be solved by the invention] Conventionally, hair rinses,
Hair cosmetics such as hair treatments and hair conditioners are used.

Its main purpose is to impart smoothness, flexibility, and moisturizing properties to the hair, giving it a smooth brush stroke, and making the hair supple and free of dryness, as well as shiny and glossy. be.

Hair cosmetics that achieve this purpose include quaternary ammonium salts such as di-long-chain di-short-chain alkyl ammonium salts such as dialkyldimethylammonium chloride, and mono-long-chain alkyltri-short-chain alkyl ammonium salts such as alkyltrimethylammonium chloride. GI products have been proposed that contain salt as the main active ingredient, but all of them have problems with adsorption and release properties to hair, and therefore sufficient effects have not been obtained. Therefore, methods have been proposed in which various oils are used in combination with such 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, the gloss and brushability will be good, but on the other hand, it will lack flexibility and
This results in a hard finish. Furthermore, when oils with excellent moisturizing effects, such as Vaseline, are added, the hair becomes supple, but it lacks combability and shine, giving the hair a frizzy, heavy feel.

The present invention has been made in view of the above circumstances, and has high adsorption of active ingredients to hair, excellent combability, and
The purpose is to provide a hair cosmetic that can impart suppleness and gloss.

[Means and effects for solving the problem] The present inventors,
As a result of intensive studies to achieve the above objective, we found the following general 2(11 Number 1~
10 branched or linear alkylene groups or alkenylene groups, and m is 0 or 1. Moreover, n is an integer of 1-5. ) By using a protein derivative in combination with one or more selected from the guanidine derivatives having an amide group in the molecule and their salts, the product has the effect of imparting combability, flexibility, and gloss. It was discovered that hair cosmetics can be obtained.

That is, the mono-N-substituted guanidine derivative has a guanidine group, which is a strongly basic group, in its molecule, and this group has a strong guanidine group that can form a strong twinning ion with a resonant monovalent anion species such as a carboxy anion. Because it has a strong electrostatic effect and hydrogen bonding ability, it has an extremely good affinity for protein fibers such as keratin that have resonant monovalent anion species in their terminal side chains.
Moreover, since it forms a twin ion with the above anion species, its adsorption power is strong. The compound has a very strong affinity with protein fibers such as keratin, and can be adsorbed well to the hair, giving it excellent flexibility, and the introduction of an amide group improves the ability of water molecules to stick to the hair. , which also has an excellent effect of imparting moisturizing properties to the hair, and in view of this, the present applicant has previously proposed that the active ingredient has a high adsorption property to the hair and imparts excellent flexibility and moisturizing properties to the hair. proposed a hair cosmetic containing the compound of general formula (1) as an active ingredient (Japanese Patent Application Laid-open No. 320075/1983).

As a result of further investigation into this proposal, the present inventors found that by further using a protein derivative in combination with the compound of general formula (1), the effect of imparting softness and moisture retention can be enhanced, and the combing ability can be improved. The inventors discovered that it is possible to simultaneously impart properties such as elasticity, suppleness, and gloss, leading to the present invention.

The present invention will be explained in more detail below.

The hair cosmetic according to the present invention contains a guanidine derivative having an amide group in the molecule represented by the following general formula (1) or a salt thereof as an active ingredient.

Here, the substituent R1 in the formula +11 has 1 to 22 carbon atoms,
Preferably it is a 11-19 branched or straight-chain alkyl group or alkenyl group, for example CIIH23C1□H
2S + Cl5H2? ＋C
l4829 + Cl5H3 ivy -Cl6H
33, Cl7H3S, (CIlHI7)2CH4
Groups such as C2H3CISH, 3°- are preferred.

Further, substituent A has 1 to 1 carbon atoms, preferably 2 to 6 carbon atoms.
A branched or linear alkylene group or alkenylene group, such as a methylene group, ethylene group, propylene group, butylene group, pentylene group, hexylene group, isopropylene group, 2-pentenyl group, 2-ethylbutylene group, etc. m is 1 or O.

Note that n is an integer of 1 to 5.

Furthermore, the guanidine derivative of formula (1) is usually formulated in the form of a salt, specifically inorganic acid salts such as hydrochloride, organic acids such as glycolate, acetate, citrate, and acidic amino acid salts. It can be used as a salt, but from the viewpoint of solubility in water, hydrochloride is preferable when using an inorganic acid salt, and glycolate is preferable when using an organic acid salt.

In this case, the guanidine derivative of fi1 formula and its salt are:
One type may be blended alone, or two or more types may be used in combination.
In addition, the blending amount is not particularly limited, but the total amount is 0.0
It is preferably 5 to 10% (weight %, hereinafter the same), particularly 0.7 to 5%. If the amount is less than 0.05%, the softening effect may not be sufficient, and if it exceeds 10%, it is not only economically disadvantageous, but also may result in a sticky and heavy finish.

The protein derivatives that are the second essential component of the present invention include polypeptides obtained by hydrolyzing proteins commonly used in cosmetics, such as collagen protein, keratin protein, casein protein, silk protein, and conchiolin, and their esters. Quaternized products and also condensates of polypeptides and various fatty acids are preferably used.

In this case, the polypeptide preferably has a molecular weight of 200 to 2000. If the molecular weight is less than 200, the brushability may deteriorate, and if the molecular weight exceeds 2000, the hair may become hard.

Moreover, in the condensate of a polypeptide and a fatty acid, the fatty acid preferably has 8 to 20 carbon atoms.

When the number of carbon atoms is 7 or less, the amount of adsorption to the hair is small and the desired effect cannot be obtained, and when the number of carbon atoms exceeds 20, dryness may occur and the suppleness may deteriorate. Specifically, fatty acids include coconut oil fatty acid, lauric acid, undecylenic acid, oleic acid, isostearic acid, resin acid, myristic acid, and the like. The terminal carboxylic acid group of the condensate of polypeptide and fatty acid may be in the form of an acid or a lithium salt, sodium salt, potassium salt, alcohol amine, or the like.

These protein derivatives may be used alone or in combination of two or more.

The blending amount of the above protein derivative is usually 0.05 to 10%, preferably 0.1 to 10%, based on the entire hair cosmetic.
It is 5%. If it is less than 0.05%, the effects of the present invention are not easily exhibited, and if it exceeds 10%, storage stability tends to deteriorate.

In addition to the above-mentioned two essential components, the hair cosmetic of the present invention may contain the following optional components within a range that does not affect the effects of the present invention. That is, optional components include hydrocarbons such as liquid paraffin, vaseline, solid paraffin, squalane and olefin oligomers; isopropyl myristate, isopropyl palmitate, stearyl stearate, octyldodecyl myristate, octyldodecyl oleate, and 2-ethyl Esters such as hexanoic acid triglyceride; emulsifiers such as polyoxyethylene cetyl ether, polyoxyethylene stearate, and polyoxyethylene sorbitan monolaurate;
Cationic surfactants such as benzalkonium chloride, cetyltrimethylammonium chloride, cetostearyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, distearyldimethylammonium chloride, N-cocoylarginyl ethyl ester; N-(2 -7 droxyethyl)-
Ampholytic surfactants such as N-(bis(2-carboxyethyl)aminoethylcholaurylamide disodium salt, 2-cocoyl-N-carboxymethyl-N-hydroxyethylimidazolium betaine); higher alcohol sulfates, alcohol ether sulfates, Anionic surfactants such as α-olefin sulfonates; higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol; palmitic acid,
Higher fatty acids such as stearic acid and behenic acid; humectants such as ethylene glycol, propylene glycol, 1.3-butylene glycol, glycerin and sorbitol; and solvents such as ethanol, preservatives, pH adjusters, hair nourishing agents,
Examples include small amounts of components such as ultraviolet absorbers, antioxidants, stabilizers, and fragrances, and one or more of these may be blended as necessary.

〔Effect of the invention〕

The hair cosmetic of the present invention uses the above-mentioned two essential ingredients in combination to give hair excellent combability, flexibility, and luster.
Therefore, it is suitably used as a rinse, conditioner treatment, brushing lotion, hair tonic, hair liquid, permanent waving agent, bleaching agent, hair dye, hair manicure, hair coating agent, etc.

〔Example〕

EXAMPLES Hereinafter, the effects of the present invention will be specifically explained by showing examples and comparative examples of the present invention. Before explaining each side, the test method will be explained.

After passing the hair bundle (7 g, 18 w) through a polyethylene comb, the comb was lowered at a constant speed (40 m/min).

At this time, the maximum load (resistance) applied to the hair comb was read from a tensilon meter recorder.Next, after treating this hair bundle with a hair cosmetic, the maximum load (resistance) applied to the comb was measured in the same manner as described above. The maximum load was measured.The measurement was carried out at 25℃.
, 65% RH. Combability is defined by the following 2.

However, C6 = maximum load (g) before treatment with the cosmetic composition C,
= Maximum load (g) after treatment with the cosmetic composition Evaluation of combability was based on the following criteria.

50% or more 20 Good 40-50%: ○ Fairly good 30-40%: △ Fair 20-30%: × Slightly poor 20% or less: × × Poor combability evaluation Bundle conditions Shampoo treated hair 0 samples in a bundle (7g, 18cm)
．． After applying 7g directly and spreading it evenly, mix it with 40℃ water to 210+nj! The hair was rinsed twice and dried in an atmosphere of 25° C. and 65% RH to obtain a hair bundle for evaluation of combability.

Evaluation of suppleness, ' Ten women between the ages of 21 and 36 (long hair, perm done within 2 months) were used as panelists, and their hair after washing was divided into two and test samples shown in Table 1 were used. and the following standard product, and sensory evaluation was performed using the left and right paired comparison method.

Standard product Cetyltrimethylammonium chloride: 1.5% Cetanol: 1.0 Glycerin
:5.0 total 100.
0 The evaluation criteria are as follows.

5 (points): Better than the standard product 4 (-): Slightly better than the standard product 3 (〃): Equal to the standard product 2 (#): Slightly inferior to the standard product 1 (〃): Inferior to the standard product <Example 1 to 6, Comparative Examples 1 to 3> Thirteen types of hair cosmetics having the compositions shown in Table 1 were prepared and their performance was evaluated. The results are shown in the same table.

In addition, The amount of each component is expressed in weight%.

From the results in Table 1, the compositions of Examples 1 to 6 all exhibit excellent performance, but the compositions of Comparative Examples 1 to 3 do not contain either one or both of the two essential components of the present invention. It can be seen that all of the products were inferior in combability, flexibility, and gloss.

<Example 7> A hair treatment having the composition shown in Table 2 was prepared and its performance was evaluated, and as shown in the table, it showed excellent performance.

<Example 8> When a hair puncture agent having the composition shown in Table 3 was prepared and its performance was evaluated, excellent performance was observed as shown in the table.

No. table *7 Made by Yoken Fine Chemicals Amizole SDE , 8 Made by Acid Phase Chemicals Bromois ELP Lou 9 Bromois-ni-HQ <Example 9> Prepare a rinse having the composition shown in Table 4, Its performance When we evaluated the Excellent performance was recognized.

No. table Umbrella 11 Made by Petroleum Research Institute Rumpus P-70 Ning 12 Made by Acid Phase Chemicals Bromois ECP Out wish Man Lion Corporation teenager Reason Man small island Takashi Tsukasa (1 other person)

Claims (1)

[Claims] 1. It is characterized by containing one or more kinds selected from guanidine derivatives having an amide group in the molecule represented by the following general formula (1) and their salts, and a protein derivative. hair cosmetics. ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(1) (However, in the formula, R^1 is a branched or straight-chain alkyl group or alkenyl group having 1 to 22 carbon atoms, and A is a carbon number 1
~10 branched or linear alkylene groups or alkenylene groups, and m is 0 or 1. Also, n is 1 to 5
is an integer. )