JP2001072558A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic which can impart an excellent setting force not deteriorated even under high humidity to hair, give good gloss, moisture and flexibility to the hair, improve combability, and finish the hair in an improved natural touch by including a synthetic polymer for setting hair and a partial oxidative decomposition product of keratin or its salt. SOLUTION: This hair cosmetic contains (A) a synthetic polymer for setting hair and (B) a compound of the formula [R is the amino acid side chain of a peptide originated from keratin; (a) is 0 or 1; (m) is 2 to 20; (n) is 20 to 200; M is an alkali metal, an alkaline earth metal, ammonia or the like]. The component A includes anionic synthetic polymers and cationic synthetic polymers, such as an acrylic resin alkanolamine, and is preferably contained in an amount of 0.1 to 10 wt.%. The component B is obtained by hydrolyzing keratin constituting wool, feather, hair and so on with an alkali agent, oxidizing the hydrolysis solution with an oxidizing agent, and then adjusting the oxidized solution to pH 3 to 4, and is preferably contained in an amount of 0.1 to 20 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a hair styling mousse, a blow lotion, a hair styling gel,
Set lotion, hair cosmetics such as hair liquid, more specifically, excellent set power for hair,
And even under high humidity, there is no stickiness or loss of setting power, and it also gives the hair a glossy, moisturizing, beam, smoothes the hair, improves the combability of the hair, and gives the hair a good feel. The present invention relates to a hair cosmetic composition having an excellent hair styling property, which can be finished to a natural finish.

[0002]

2. Description of the Related Art Conventionally, hair cosmetics such as hair styling agents, set lotions, and hair liquids have been provided with xanthan gum,
Polysaccharides such as carrageenan, natural polymers such as natural proteins and hydrolysates thereof, semi-synthetic polymers such as hydroxyethylcellulose, polyvinylpyrrolidone, carboxyvinyl polymers, polyacrylates, acrylic acid and / or methacrylic acid and acrylic acid Synthetic polymers such as copolymers with alkyl esters and / or alkyl methacrylates are blended.

[0003] However, natural polymer-based polysaccharides and high-molecular proteins, cellulose-based semi-synthetic polymers, and the like are disadvantageous in that they tend to become sticky and lose their setting power under high humidity. Degraded products (hydrolyzed peptides) have less tackiness under high humidity than natural polymers and semi-synthetic polymers, but have a drawback that they are inferior to natural polymers and synthetic polymers in hair setting power.

On the other hand, although the synthetic polymer has a strong setting force for hair, it gives a hard and stiff feel to the hair and hardly gives a natural soft feeling, and the setting force causes the hairs to adhere to each other. In most cases, the film that bonds the hairs together is destroyed by combing or brushing, resulting in a loss of setting power and poor re-shaping properties. (Phenomenon in which the formed film is cracked and peels off like scales) is liable to occur.

[0005] Therefore, the synthetic polymer does not give a feeling of stiffness or flaking of the hair, has an excellent setting force on the hair, does not lose the setting force even under high humidity, and imparts gloss, moisture and beam to the hair. There has been a demand for a hair cosmetic that can smoothen hair, improve the combability of hair, and embedding the hair in a natural feel.

[0006]

SUMMARY OF THE INVENTION Accordingly, in view of the above circumstances, the present invention has an excellent setting power for hair, and
A hair cosmetic that does not cause stickiness even under high humidity, and gives gloss, moisture, and beam to the hair, smoothes the hair, improves the combability of the hair, and finishes the hair with a good feel. The purpose is to provide.

[0007]

Means for Solving the Problems The present inventors have made intensive studies to achieve the above object, and as a result, oxidized partially decomposed products of keratin represented by the following general formula (I) or a salt thereof are obtained. And has the effect of imparting luster and moisture to the hair, smoothing the hair and improving the combability of the hair, and synthesizing the oxidized partially decomposed product of keratin or a salt thereof for hair fixing. When blended into hair cosmetics containing high polymers, it imparts excellent setting power to hair, does not lose the setting power even under high humidity, and gives the hair gloss, moisture and flexibility, The present inventors have found that a hair cosmetic capable of improving combability and finishing hair with a more natural feel can be obtained, and completed the present invention.

[0008] That is, the present invention relates to a hair cosmetic containing a hair fixing polymer, which is represented by the following general formula (I):

[0009]

Embedded image

[Wherein, R represents an amino acid side chain of a keratin-derived peptide, a is 0 or 1, m is 2 to 20, n
Is from 20 to 200, and M is an alkali metal, alkaline earth metal, ammonia, lower alkanolamine or lower alkylamine (provided that m and n only indicate the number of amino acids and indicate the order of amino acid sequence) The present invention relates to a hair cosmetic comprising a partial decomposition product of oxidized keratin represented by the formula (1) or a salt thereof:

The number-average molecular weight of the oxidized partially decomposed product of keratin represented by the general formula (I) in the present specification is as follows:
The value calculated based on the average number of peptides obtained from the total nitrogen content and amino nitrogen content of the oxidized partial decomposition product of keratin, and the average molecular weight of amino acids obtained from the abundance ratio of various amino acids by amino acid analysis of keratin It is.

That is, the number average molecular weight is calculated by the following equation.

In the above formula, the reason why “18” is subtracted from the average amino acid molecular weight is that one molecule of water (H ₂ O) is dehydrated for each amino acid when a peptide bond is formed. The reason why “18” is subtracted and “18” is added at the end is to add the molecular weights “17 and 1” of “OH” of terminal COOH and “H” of terminal NH ₂ .

The average amino acid molecular weight of keratin is determined by determining the ratio of amino acids present by amino acid analysis, multiplying the ratio by the molecular weight of each amino acid, and summing the results. In the present specification, the average amino acid molecular weight is 1%.
24.

Oxidized degradation product of keratin (α-keratose)
So far, Japanese Patent Application Publication No. 61-60807 and Japanese Patent Publication No. 61-60
808, Japanese Patent Publication No. 2-38563,
JP-A-7-144213 and the like have proposed hair treatment agents and hair rinse agents in which an oxidized decomposition product of keratin is used in combination with a cationic surfactant, a cationic polymer, a polyphenol compound, and the like. The oxidized decomposed product of keratin used in is obtained by oxidizing keratin in an aqueous ammonia solution and then adjusting the pH to 4 with hydrochloric acid and precipitating it, so that the molecular weight distribution is wide,
Because it contains high molecular weight oxidatively decomposed products, it gives the hair a stiff feel due to the effect of high molecular weight oxidatively decomposed products when applied to hair, and tends to cause turbidity and sedimentation when blended in cosmetics, resulting in storage stability There was a problem of chipping.

On the other hand, the partially decomposed oxidized product of keratin represented by the general formula (I) or a salt thereof used in the present invention has a number average molecular weight of about 2,000 to about 20,000, so that it can be applied to hair. It does not give a stiff feeling when applied, and has a low molecular weight distribution, so that it does not cause turbidity or precipitation when blended in cosmetics and has excellent storage stability.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The hair cosmetic composition of the present invention is prepared by using a hair fixing polymer and the above partially decomposed oxidized product of keratin or a salt thereof as essential components. To explain the salt in detail,
It is as follows.

The keratin used as the starting material for the partially decomposed oxidized product of keratin represented by the general formula (I) or a salt thereof used in the present invention includes, for example, wool, feather, hair, horn,
Keratin constituting nails, hooves and the like can be used, but wool is particularly preferred from the viewpoint of easy availability.

The oxidized partially decomposed product of keratin represented by the above general formula (I) or a salt thereof has a number average molecular weight of about 200
Although it is adjusted to 0 to about 20,000, as a method for producing an oxidized partially decomposed product of keratin represented by the general formula (I) or a salt thereof, for example, keratin is hydrolyzed with an alkali agent, and the decomposition solution is oxidized. After oxidizing with an agent, the oxidizing solution is adjusted to pH
A method of generating by adjusting to 3 to 4 is adopted. Specifically, for example, wool is decomposed in an aqueous solution of sodium hydroxide at 80 ° C. for 1 to 6 hours, oxidized with an oxidizing agent such as hydrogen peroxide solution or formic acid, and filtered, and then the filtrate is treated with hydrochloric acid, The pH is adjusted to 3 to 4 by adding an acid such as sulfuric acid to precipitate and separate the insoluble matter. The insoluble matter is washed with a saline solution or the like, and then 50% (% by weight; If not, they are dissolved in water-containing ethanol (about 10% by weight), or a basic substance such as sodium hydroxide, aqueous ammonia, or alkanolamine is used.
To 8 to obtain an aqueous solution.

The oxidized partially decomposed product of keratin obtained by the above method is characterized in that when the pH is lowered to an acidic side, the solubility in ethanol increases, and when dried, a film that is more water-resistant than an alkali salt is formed. Have.

In the general formula (I) representing the oxidized partial decomposition product of keratin or a salt thereof used in the present invention, m
Are set to 2 to 20, and n is set to 20 to 200, because the number-average molecular weight of the oxidized partially decomposed product of keratin or a salt thereof is set to about 2000 to about 20,000, and
It is based on the fact that cysteine is contained at a ratio of about 1 to the individual, and the cysteine moiety is oxidized to form a moiety indicated by m.

The hair cosmetic composition of the present invention is prepared by blending a partially oxidized keratin represented by the above general formula (I) or a salt thereof with a hair cosmetic composition containing a hair fixing polymer. However, the amount of oxidized partially decomposed product of keratin represented by the general formula (E) or a salt thereof in a hair cosmetic (content in the hair cosmetic) is 0.1 to 20% by weight.
Is preferred, and particularly preferably 0.5 to 10% by weight. This is because when the amount of the partially decomposed product of keratin represented by the general formula (I) or a salt thereof in the hair cosmetic is less than the above range, the effect of setting the hair and the effect of imparting gloss and moisture to the hair are obtained. There is a possibility that the effect of improving the combability by smoothing the hair may not be sufficiently exerted. Conversely, the amount of the oxidized partially decomposed product of keratin represented by the general formula (I) or a salt thereof in the hair cosmetic composition If the amount is more than the above range, the hair may have a sticky feeling or a stiff feeling.

[0023] Then, when compounding into hair cosmetics,
The partially decomposed oxidized product of keratin represented by the above general formula (I) or a salt thereof may be used alone or in combination of two or more.

The synthetic hair fixing polymer constituting the hair cosmetic of the present invention is not particularly limited as long as it is used for hair cosmetics, and may be an anionic synthetic polymer, a cationic synthetic polymer, Either an amphoteric synthetic polymer or a nonionic synthetic polymer can be used.

Examples of the anionic synthetic polymer include, for example,
Carboxyvinyl polymer, hydroxyethyl acrylate / butyl acrylate / methoxyethyl acrylate copolymer, hydroxyethyl acrylate / methoxyethyl acrylate copolymer, acrylic acid / acrylamide / ethyl acrylate copolymer, acrylic acid Alkyl (C1
C4, C8) copolymer, octylamide acrylate / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer, butyl acrylate / hydroxyethyl methacrylate copolymer, alkanolamine acrylic resin, alkyl acrylate / methacrylic acid Alkyl acid ester, diacetone amide acrylamide, methacrylic acid copolymer, polyvinyl butyrate, hydroxyethyl acrylate, butyl acrylate, methoxyethyl acrylate copolymer, alkyl acrylate (C4, C
8, C12) vinyl acetate copolymer.

Examples of the cationic synthetic polymer include, for example,
Vinyl vilolidone / N, N-dimethylaminoethyl methacrylic acid copolymer dimethyl sulfate, vinyl pyrrolidone /
Alkyldialkylamino (meth) acrylate copolymer, acrylamide / β-methacryloyloxyethyltrimethylammonium methyl sulfate copolymer, acrylamide / diallyldimethylammonium chloride copolymer, vinylpyrrolidone / vinylimidazolinium chloride copolymer, etc. Is mentioned.

Examples of the amphoteric polymer include N-methacryloyloxyethyl N, N-dimethylammonium-α
Examples of -N-methylcarboxybetaine / alkyl methacrylate copolymer include nonionic polymers such as vinylpyrrolidone / vinyl acetate copolymer.

The content of the synthetic polymer for fixing hair in a hair cosmetic is preferably 0.1 to 10% by weight, particularly preferably 0.5 to 5% by weight. That is, when the content of the synthetic polymer for fixing hair in the hair cosmetic is less than the above range, the action of setting the hair may not be sufficiently exhibited, and the content of the synthetic polymer for fixing hair in the hair cosmetic may be reduced. If the content in is more than the above range, the hair becomes hard,
This is because a stiff feeling may be given.

[0029] The hair cosmetic composition of the present invention comprises a hair styling mousse, a hair styling mist, a blow lotion,
For set lotions, hair styling gels, hair liquids, hair creams, etc., after blending components normally required for those hair cosmetics, such as synthetic polymers for fixing hair, the above formula (I) It is prepared by compounding the oxidized partial decomposition product of keratin shown or a salt thereof. However, the order of blending may be any, for example, contains a synthetic polymer for fixing hair, etc.
A hair styling mousse, a hair styling mist, a blow lotion, a set lotion, a hair styling gel, a hair liquid, a hair cream, etc., are prepared by adding an oxidized partially decomposed product of keratin represented by the above general formula (I) or a salt thereof. When preparing these hair cosmetics, a synthetic polymer for fixing hair and other components may be mixed with a partially decomposed product of oxidized keratin or a salt thereof.

The partially decomposed oxidized product of keratin represented by the above general formula (I) or a salt thereof can be used in combination with various other components in addition to the synthetic polymer for fixing hair, and the respective hair cosmetics In the above, if necessary, it is used in combination with other components.

Such components include, for example, sodium lauroylmethyl-β-alanine, lauroyl-
N-acyl amino acid salts such as sodium L-glutamate, coconut oil fatty acid-sodium L-glutamate, sodium coconut oil fatty acid methyl taurine, sodium ether sulfate alkane sulfonate, disodium oleamide amide sulfosuccinate, sodium lauryl sulfosuccinate, poly Oxyethylene alkyl (C12 ~ 1
6) Ether phosphoric acid (2 to 12 EO) (EO is ethylene oxide, the value before EO indicates the number of moles of ethylene oxide added), sodium polyoxyethylene cetyl ether phosphate, polyoxyethylene lauryl sulfosuccinate Disodium, sodium lauryl sulfoacetate, sodium tetradecenesulfonate, collagen, keratin, fibroin, casein, soybean, wheat, corn, potatoes, yeast and other animal and plant-derived protein hydrolysates having 8 to 20 carbon atoms Anionic surfactants such as acylated hydrolyzed proteins acylated with fatty acids and salts thereof, 2-alkyl-N-
Carboxymethyl-N-hydroxyethylimidazolinium betaine, undecylhydroxyethylimidazolinium betaine sodium, stearyldimethylaminoacetic acid betaine, coconut oil alkylbetaine, coconut oil fatty acid amidopropyl betaine, coconut oil alkyl-N-carboxyethyl-N Amphoteric surfactants such as -hydroxyethylimidazolinium betaine sodium, N-coconut fatty acid acyl-L-arginineethyl-DL-pyrrolidonecarboxylate, polyoxyethylene alkyl (having 1 carbon atom)
2-14) ether (7EO), polyoxyethylene octylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene glyceryl oleate,
Polyoxyethylene stearyl ether, polyoxyethylene cetyl ether, polyoxyethylene cetyl stearyl diether, polyoxyethylene sorbitol lanolin (40EO), polyoxyethylene nonyl phenyl ether, polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxy Nonionic surfactants such as propylene decyl tetradecyl ether, polyoxyethylene lanolin, polyoxyethylene lanolin alcohol, polyoxypropylene stearyl ether, alkyl glycoside, alkyl polyglycoside, stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, ceto stearyl chloride Trimethyl ammonium, behenyl trimethyl ammonium chloride, dis bromide Allyl dimethyl ammonium, stearyl dimethyl benzyl ammonium chloride, behenyl trimethyl ammonium bromide, oleyl benzyl dimethyl ammonium chloride, alkyl trimethyl ammonium salt, dialkyl dimethyl ammonium salt, polyoxypropylene methyl diethyl ammonium chloride, mink oil fatty acid amidopropyl dimethyl hydroxyethyl ammonium chloride , Γ-gluconamidopropyldimethylhydroxyammonium chloride, cationic surfactants such as alkylpyridinium salts, isostearic acid diethanolamide, undecylenic acid monoethanolamide, oleic acid diethanolamide, tallow fatty acid monoethanolamide, hardened tallow fatty acid diethanolamide, Stearic acid diethanolamide, stearic acid di Increase in ethylaminoethylamide, stearic acid monoethanolamide, myristic acid diethanolamide, coconut oil fatty acid ethanolamide, coconut oil fatty acid diethanolamide, lauric acid isopropanolamide, lauric acid ethanolamide, lauric acid diethanolamide, lanolin fatty acid diethanolamide, etc. Viscous agents, waxes, paraffin, fatty acid esters, glycerides, oils and fats such as animal and vegetable oils, animal and plant extracts, collagen, keratin, fibiroin, sericin, casein, soybeans, wheat, corn, potato, rice (rice bran), yeast, mushrooms Hydrolyzed peptides of proteins derived from animals, plants and microorganisms such as, and peptide ester derivatives thereof, propylene glycol, 1,3-butylene glycol, ethylene glycol, glycerol Down, wetting agents such as polyethylene glycol, ethanol, methanol, propyl alcohol, lower alcohols such as isopropyl alcohol, higher alcohols such as cetyl alcohol, stearyl alcohol, oleyl alcohol, etc. behenyl, L-
Aspartic acid, L-sodium aspartate, DL
-Alanine, L-arginine, glycine, L-glutamic acid, L-cysteine, L-threonine and other amino acids.

In addition, linear or cyclic methylpolysiloxane, methylphenylpolysiloxane, dimethylpolysiloxane polyethylene glycol copolymer, dimethylpolysiloxane polypropylene copolymer, amino-modified silicone oil, quaternary ammonium-modified silicone oil, etc. Semi-synthetic polymers such as silicone oil, sodium carboxymethyl cellulose, cationized cellulose, and cationized guar gum may be used in combination.

[0033]

EFFECT OF THE INVENTION The hair cosmetic composition of the present invention has an excellent setting power for hair, and causes stickiness even under high humidity.
There is no loss of setting power, no flaking when drying, and it gives the hair a shiny, moisturizing,
The hair can be smoothed, the combability of the hair can be improved, and the hair can be finished with a more natural feel.

[0034]

Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to only these examples. Prior to the examples, a method for producing an oxidized partially decomposed product of keratin represented by the general formula (I) or a salt thereof will be described as a reference example. In the following Reference Examples, Examples and Comparative Examples,% indicating the concentration of the solution is% by weight.

REFERENCE EXAMPLE 1 1000 g of water and 17 g of sodium hydroxide were placed in a beaker having an inner volume of 5 liters, and 250 g of crushed wool was stirred.
Was added and stirring was continued at 80 ° C. for 4 hours to hydrolyze the wool. After decomposition, cool to room temperature and add 15%
After adding 0 g and continuing stirring for 1 hour, the solution was left standing for 24 hours to oxidize the decomposition solution. After completion of the oxidation, the solution was filtered to remove insolubles, and 28 g of 36% hydrochloric acid was added to the filtrate to adjust the pH of the solution.
Was adjusted to 3.5 to separate insolubles as suspended precipitates.
The lower aqueous layer was removed, and the insoluble material was 0.5 g of a 0.5% saline solution.
And washed twice. After washing, the insolubles were dissolved in a 50% aqueous ethanol solution, and the concentration was adjusted to obtain 530 g of a 20% solids aqueous ethanol solution. The number average molecular weight of the oxidized partial decomposition product of keratin thus obtained was 4,276.

REFERENCE EXAMPLE 2 1000 g of water and 25 g of sodium hydroxide were placed in a beaker having an internal volume of 5 liters, and 250 g of crushed wool was stirred.
Was added and stirring was continued at 80 ° C. for 4 hours to hydrolyze the wool. After decomposition, cool to room temperature and add 15%
After adding 0 g and continuing stirring for 1 hour, the solution was left standing for 24 hours to oxidize the decomposition solution. After completion of the oxidation, the solution was filtered to remove insolubles, and 40 g of 36% hydrochloric acid was added to the filtrate to adjust the pH of the solution.
Was adjusted to 3.5 to separate insolubles as suspended precipitates.
The lower aqueous layer was removed, and insolubles were 0.5 g of a 0.5% saline solution.
And washed twice. After washing, the insolubles are dissolved in an aqueous sodium hydroxide solution, adjusted to pH 7 and 600 g of a 20% aqueous solution.
Obtained. The number average molecular weight of the sodium salt of the oxidized partially decomposed product of keratin thus obtained was 3,520.

REFERENCE EXAMPLE 3 1000 g of water and 10 g of sodium hydroxide were placed in a beaker having an internal volume of 5 liters, and 250 g of crushed wool was stirred.
Was added and stirring was continued at 80 ° C. for 3 hours to hydrolyze the wool. After the hydrolysis, the mixture was cooled to room temperature, 150 g of 35% hydrogen peroxide solution was added, stirring was continued for 1 hour, and the mixture was left standing for 24 hours to oxidize the decomposition solution. After completion of the oxidation, the solution was filtered to remove insolubles, and 40 g of 36% hydrochloric acid was added to the filtrate to adjust the pH of the solution to 3.5, and the insolubles were separated as floating precipitates. The lower aqueous layer was removed, and the insolubles were reduced to 0.5% saline 35.
Washed twice with 0 g. After washing, the insolubles were dissolved in triethanolamine, adjusted to pH 7 and a 20% aqueous solution was added to 677.
g was obtained. The number average molecular weight of the triethanolamine salt of the partially decomposed product of oxidized keratin thus obtained was 8546.
Met.

Example 1 and Comparative Examples 1-2 Three mousse-shaped hair styling foam bases having the compositions shown in Table 1 were prepared, and the styling foam base and the propellant shown in Table 1 were each filled in a spray container [ Foam base: propellant = 90: 10 (weight ratio)], about the curl rate, gloss, moisture, beam, smoothness, combability, and wave feel of hair treated with each mousse hair styling foam evaluated. In addition,
The amount of each component in Table 1 is based on parts by weight, and the solid content is shown in parentheses after the name of the component when the amount is not the solid content. These are the same in the tables showing the compositions in the following Examples and Comparative Examples.

In Example 1, an acrylic polymer alkanolamine solution of an anionic polymer [Plus Size L-6740B (trade name) manufactured by Ryogo Chemical Industry Co., Ltd.] and the oxidized partially decomposed product of keratin manufactured in Reference Example 1 were used. Comparative Example 1 was a single use of the acrylic resin alkanolamine solution used in Example 1, and Comparative Example 2 was a single use of the oxidized partially decomposed product of keratin produced in Reference Example 1.

[0040]

[Table 1]

In the test, a hair bundle having a weight of 0.8 g and a length of 270 mm, which had been washed in advance with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate and rinsed in running tap water and air-dried at room temperature, was used. The hair tresses were separately coated with 0.2 g of the mousse-shaped hair styling foams of Example 1 and Comparative Examples 1 and 2, respectively.
After standing for a minute, the hair was brushed slowly from the root side to the hair tip side with a hair brush while blowing hot air from a hair dryer, and the brushing was repeated until the hair was adhered. Thereafter, a 50 g weight was attached to the tip of the hair bundle so that each hair bundle could be curled with a certain tension, and the hair bundle was heated in advance to a diameter of 25 mm and a length of 20 g.
It was wound around a 0 mm hot curler, both ends were fixed with hairpins, and left for 5 minutes. After standing for 5 minutes, the hair bundle was removed from the curler, suspended with the root side up, and the length (L) from the root to the hair tip was measured.

The curl rate of the hair bundle treated as described above was determined by the following equation.

Next, a hair brush (jumbo comb)
The hair bundle is brushed slowly 10 times from the root to the tip of the hair bundle, and the length of the hair bundle is measured again to obtain the curl rate after brushing.
In a constant humidity chamber with the root side up and stored for 24 hours,
The length of each hair bundle after storage in a humidity chamber was measured to determine the curl rate. Table 2 shows the results.

[0044]

[Table 2]

As shown in Table 2, the hair treated with the hair styling foam of Example 1 had almost the same curl ratio immediately after curling as the hair treated with the hair styling foam of Comparative Examples 1-2, and after brushing. Is Comparative Example 2
The value was slightly lower than that of the hair treated with the hair styling foam of Comparative Example 1, but the curl rate after storage in a constant humidity chamber was about 10 times that of the hair treated with the hair styling foam of Comparative Example 1.
%, More than 20% higher than the hair treated with the hair styling foam of Comparative Example 2, and the hair tress treated with the hair styling foam of Example 1 containing the acrylic resin alkanolamine solution and the oxidized partially decomposed product of keratin was brushed or brushed. It was clear that the setting force was hard to be lost even under humidity.

Next, ten female panelists evaluated the gloss, moisture, beam, smoothness, combability, and feel of the hair of each hair bundle after a storage test in a humidity chamber. The evaluation method is shown as the average value of 10 persons, with the best one being [2 points], the second best being [1 point], and the bad being [0 point].

[0047]

[Table 3]

As shown in Table 3, the hair treated with the hair styling foam of Example 1 containing an alkanolamine solution of an acrylic resin and a partially decomposed product of keratin was treated as follows:
Regarding the gloss and the radiance of the hair, the evaluation value was equal to or lower than that of the hair treated with the hair styling foam of Comparative Example 1 containing only the acrylic resin alkanolamine solution, and the moisture and suppleness of the hair were The evaluation value was the same as that of the hair treated with the hair styling foam of Comparative Example 2 containing only the partially oxidized decomposition product of However, the hair treated with the hair styling foam of Comparative Example 1 had an evaluation value of 0 (zero) for evaluation items other than gloss and bend.
The hair treated with the hair styling foam of Comparative Example 2 was also lower than Example 1 in the evaluation items of gloss, beam, and wave feel, and the hair styling foam of Example 1
Complementing the disadvantages of synthetic polymer for hair fixation and polymer of natural protein type, it is clear that hair can be given excellent gloss, moisture, beam, good combability and good wave feel. there were.

Regarding the feel of the wave, all the panelists felt that the hair treated with the hair styling foam of Example 1 had a smooth feel, the hair treated with the hair styling foam of Comparative Example 1 had a very hard feel, and that of Comparative Example 2 Answered that the hair treated with the hair styling foam of (1) had a supple but sticky feeling. The acrylic resin alkanolamine solution and the oxidized partially decomposed product of keratin blended in the hair styling foam of Example 1 were more natural than the hair. It was clear that it imparted a feel.

Example 2 and Comparative Examples 3 to 4 Hair setting agents having the compositions shown in Table 4 were prepared, and the curl rate, the lustrousness and the moisture of the hair treated with each of the hair setting agents were determined.
The beam, smoothness, combability and wave feel were evaluated.

In Example 2, a cationic polymer vinylpyrrolidone / N, N-dimethylaminoethylmethacrylic acid copolymer diethyl sulfate solution [Osaka Organic Chemical Industry Co., Ltd.
HC Polymer 5N (trade name) and sodium salt of a partially decomposed product of oxidized keratin produced in Reference Example 2. Comparative Example 3 used the vinyl vilolidone N,
N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer solution was used alone, and Comparative Example 4 was used alone of the sodium salt of the oxidized partially decomposed product of keratin produced in Reference Example 2. .

[0052]

[Table 4]

The test was performed in the same manner as in the treatment of the hair bundle of Example 1.
Washed in advance with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate, rinsed in running tap water, and air-dried at room temperature. Weight 0.8 g, length 270 mm.
Example 2 and Comparative Example 3
Apply 0.5g each of the hair setting agents of ~ 4 each with a sprayer, and after leaving it for 5 minutes, slowly brush from the root side to the hair tip side with a hair brush while applying the hot air of a hair dryer. The brushing was repeated until the hair was adhered. Thereafter, each hair bundle was heated in advance to a diameter of 25 mm and a length of 20 mm.
Wrap it around a 0mm hot curler, fix both ends,
Let stand for minutes. After standing for 5 minutes, the hair bundle was removed from the curler, hung with the root side up, the length from the root to the hair tip was measured, and the curl rate was calculated.

Next, the hair bundle was brushed slowly 10 times from the root to the tip of the hair using a hair brush, and the length of the hair bundle was measured again. The hair bundle was suspended in a wet tank with the root side facing upward and stored for 24 hours, and the length of each hair bundle after storage in the constant humidity tank was measured to determine the curl rate. Table 5 shows the results.

[0055]

[Table 5]

As shown in Table 5, the hair bundle treated with the hair setting agent of Example 2 had a slightly lower curl ratio than the hair treated with the hair setting agent of Comparative Example 4 after brushing. The curl rate after storage in a constant humidity bath was about 40% higher than the hair treated with the hair setting agents of Comparative Examples 3 and 4, and the vinylpyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution and keratin It was clear that the hair bundle treated with the hair setting agent of Example 2 containing the sodium salt of the oxidized partially decomposed product hardly lost its setting force even under brushing or high humidity.

Next, the glossiness, moisture, beam, smoothness, combability and wave feel of the hair of each hair bundle after the storage test in a constant-humidity bath were evaluated by 10 female panelists in the same manner as in Example 1. The evaluation was based on criteria. The results are shown in Table 6 as an average value of 10 persons.

[0058]

[Table 6]

As shown in Table 6, vinylpyrrolidone
Hair treated with the N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution and the sodium salt of oxidized partially decomposed product of keratin was treated with vinylpyrrolidone. N, N-
Although the evaluation value was lower than that of the hair treated with the hair setting agent of Comparative Example 3 in which the dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution was blended, the other evaluation items were treated with the hair setting agent of Comparative Example 3. All of the evaluation values were higher than those of the hair treated with the hair setting agent of Comparative Example 4 in which the sodium salt of the oxidized partially decomposed product of hair and keratin was added, and vinylpyrrolidone · N added in the hair setting agent of Example 2 , N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution imparts a beam to hair, oxidized partially decomposed products of keratin sorb to the hair, and gives the hair a glossy, moist, suppleness, combability and It has been shown to impart a good wave feel.

Regarding the feel of the wave, all the panelists felt that the hair treated with the hair setting agent of Example 2 had a smooth feel, and that the hair treated with the hair setting agent of Comparative Example 3 had a very hard feel. He said that the hair treated with the hair setting agent had a supple but sticky feeling,
Vinylpyrrolidone in the hair setting composition of Example 2
It was evident that the N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution and the sodium salt of the oxidized partially decomposed product of keratin impart a more natural feel to hair.

Example 3 and Comparative Examples 5 to 6 Three types of hair styling gels having the compositions shown in Table 7 were prepared, and the curl rate, the gloss, the moisture, and the stiffness of the hair treated with each of the hair styling gels were measured. , Smoothness, combability and wave feel were evaluated.

In Example 3, the amphoteric polymer N-methacryloyloxyethyl N, N-dimethylammonium-α
Using a -N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer solution [Mitsubishi Chemical Corporation, Yukaformer SM (trade name)] and a triethanolamine salt of an oxidized partially decomposed product of keratin produced in Reference Example 3, Comparative Example 5 is a single use of the N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer solution, and Comparative Example 6 is the keratin prepared in Reference Example 3. The triethanolamine salt of the oxidized partially decomposed product is used alone.

[0063]

[Table 7]

Prior to the treatment with the above hair styling gel, a hair bundle having a length of 300 mm and a weight of 2.5 g was previously washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate, rinsed in running tap water and washed at room temperature. And air-dried. The hair bundle was wound around a curling rod having a diameter of 25 mm, and 2 g of each of the hair styling gels of Example 3 and Comparative Examples 5 to 6 was separately applied to the hair bundle wound around the rod, and dried with a hair dryer.
After drying, the hair bundle was removed from the rod, and the length of the hair bundle was measured in the same manner as in Example 1 to calculate the curl rate.

Since the test hair bundle is 300 mm in Example 2 and Comparative Examples 5 and 6, the curl rate can be calculated by the following equation.

Next, the hair bundle was brushed slowly 10 times from the root to the tip of the hair using a hair brush, and the length of the hair bundle was measured again. The hair bundle was suspended in a wet tank with the root side facing upward and stored for 24 hours, and the length of each hair bundle after storage in the constant humidity tank was measured to determine the curl rate. Table 8 shows the results.

[0067]

[Table 8]

As shown in Table 8, the hair tresses treated with the hair styling gel of Example 3 were treated immediately after curling with Comparative Example 5
The curl rate was lower than that of the hair bundle treated with the hair styling gel of No. 6 to 6, but after brushing, the curl rate was better than that of the hair bundle treated with the hair styling gel of Comparative Example 5 in which the amphoteric polymer was used alone. After storage in the tub, the curl rate of the hair bundle treated with the hair styling gel of Example 3 was about 8% that of the hair bundle treated with the hair styling gel of Comparative Example 5, and the hair bundle treated with the hair styling gel of Comparative Example 6. 40% or more higher than the above, containing N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer solution and triethanolamine salt of oxidized partial decomposition product of keratin. The hair bundle treated with the hair styling gel of Example 3 hardly loses its setting power even under brushing or high humidity. Theft was evident.

Next, the gloss, moisture, beam, smoothness, combability, and feel of the hair of each hair bundle after the storage test in a constant humidity chamber were evaluated by 10 female panelists in the same manner as in Example 1. The evaluation was based on criteria. The results are shown in Table 9 as an average value of 10 persons.

[0070]

[Table 9]

As shown in Table 9, N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer solution and triethanolamine salt of oxidized partial decomposition product of keratin The hair treated with the hair styling gel of Example 3 containing N-methacryloyloxyethyl N, N-dimethylammonium-α
Although the evaluation value was lower than that of the hair treated with the hair styling gel of Comparative Example 5 containing -N-methylcarboxybetaine / alkyl methacrylate copolymer solution,
Other evaluation items were all compared with the hair treated with the hair styling gel of Comparative Example 5 and the hair treated with the hair styling gel of Comparative Example 6 containing only the triethanolamine salt of the oxidized partially decomposed product of keratin. The evaluation value is high, and the N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer solution blended with the hair styling gel of Example 3 imparts a beam to the hair. It has been shown that oxidized partially decomposed products of keratin sorb to the hair, imparting gloss, moisture, suppleness, combability and good wave feel to the hair.

Regarding the feel of the wave, all the panelists felt that the hair treated with the hair styling gel of Example 3 had a soft feel, the hair treated with the hair styling gel of Comparative Example 5 had a very hard feel, and that of Comparative Example 6 Answered that the hair treated with the hair styling gel had a slightly sticky feeling, and it was clear that the oxidized partially decomposed product of keratin added to the hair styling gel of Example 3 gave a more natural feel. .

Example 4 and Comparative Example 7 Two types of hair styling lotions having the compositions shown in Table 10 were prepared, and when each hair styling lotion was used, the gloss, moistness, beam, suppleness, and combability of the hair were obtained. And the feel of the waves was evaluated.

In Example 4, an acrylic polymer alkanolamine solution of anionic polymer [Plus size L-6740 (trade name) manufactured by Ryogo Chemical Industry Co., Ltd.] and oxidized partially decomposed product of keratin manufactured in Reference Example 2 were used. Using sodium salt,
In Comparative Example 7, only the acrylic resin alkanolamine liquid was used.

[0075]

[Table 10]

Prior to the treatment with the above hair styling lotion, a hair bundle having a length of 300 mm and a weight of 2.5 g was previously washed with a 2% aqueous solution of sodium polyoxyethylene (3) lauryl ether sulfate and rinsed in running tap water to room temperature. And air-dried. This hair bundle was wound around a curling rod having a diameter of 25 mm, and the hair bundle wound around the rod was dipped in 2 g of the hair styling lotion of Example 4 and Comparative Example 7 for 30 seconds. After soaking, the hair bundle was dried with a hair dryer and removed from the rod, and the hair was treated with either hair styling lotion to 10 female panelists for the gloss, moistness, beam, suppleness, combability and wave feel of the hair. Was evaluated as being excellent. The results are shown in Table 11 by the number of persons who answered that Example 4 was excellent, the number of persons who answered that Comparative Example 7 was excellent, and the number of persons who answered that neither was possible.

[0077]

[Table 11]

As shown in Table 11, the hair treated with the hair styling lotion of Example 4 in which the acrylic resin alkanolamine solution and the sodium salt of the oxidized partially decomposed product of keratin were blended was compared with the case in which the acrylic resin alkanolamine solution was blended. The evaluation of the hair beam was slightly lower than the hair treated with the hair styling lotion of Example 7, but the evaluation values were higher in all the other evaluation items, and the acrylic resin blended in the hair styling lotion of Example 4 It is clear that the alkanolamine solution gives the hair a moderate amount of hair, and the sodium salt of the oxidized partially decomposed product of keratin sorbs to the hair, giving the hair a glossy, moist, supple and good combability. there were.

As for the feel of the wave, the hair treated by the hair styling lotion of Example 4 had a soft feel, while the hair treated by the hair styling lotion of Comparative Example 7 had a hard feel. It was clear that the sodium salt of the oxidized partial decomposition product of keratin imparted a more natural feel to hair.

Example 5 and Comparative Example 8 Two kinds of hair liquids having the compositions shown in Table 12 were prepared, and the gloss and moisture of the hair when each hair liquid was used were determined.
Abrasion, suppleness, combability, and ease of hair cohesion (hair styling) were evaluated.

In Example 5, an anionic polymer of an alkyl acrylate / alkyl methacrylate copolymer [manufactured by Ryo Kagaku Kogyo KK, Plasize L-53P
(Trade name)] and a triethanolamine salt of a partially decomposed oxidized product of keratin produced in Reference Example 3, and Comparative Example 8 uses only a triethanolamine salt of a partially decomposed product of keratin.

[0082]

[Table 12]

For the above two types of hair liquid, 10
A male panelist was treated once a day with the hair liquid of Comparative Example 8 for the first 5 days, and Example 5 was used for the next 5 days.
Hair liquid.

The treatment was carried out by taking 1 to 3 g of hair liquid on the palm (the amount depends on the amount of hair), applying the hair liquid to the hair by hand, and drying it with a hair dryer.

After a 10-day use period (ie, after 5 days of use of the hair liquid of Example 5), the gloss, moisture,
Whether the beam, combability, and hair cohesion are better than when using the hair liquid of Comparative Example 8,
They were asked if they got worse or did not change. Table 13 shows the results.

[0086]

[Table 13]

As shown in Table 13, after the use of the hair liquid of Example 5 in which an alkyl acrylate / alkyl methacrylate copolymer and a triethanolamine salt of a partially decomposed product of keratin were blended, Compared to the previous case, many people answered that the hair was more glossy, moisturized, glued, combable, and easier to unite. It was evident that the triethanolamine salt was sorbed on the hair, imparted gloss, moisture and beam to the hair, and had an effect of improving combability and unity.

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Claims (3)

[Claims] 1. A hair cosmetic containing a synthetic polymer for fixing hair, which is represented by the following general formula (I): [Wherein, R represents an amino acid side chain of a keratin-derived peptide, a is 0 or 1, m is 2 to 20, n is 20 to 20.
0 and M is an alkali metal, alkaline earth metal, ammonia, lower alkanolamine or lower alkylamine (however, m and n only indicate the number of amino acids, not the order of the amino acid sequence) ] A hair cosmetic comprising a partially decomposed oxidized product of keratin or a salt thereof represented by the formula: 2. The amount of a partially decomposed product of keratin represented by the general formula (I) or a salt thereof is 0.1 to 20% by weight.
The cosmetic for hair according to claim 1, which is: 3. The content of the synthetic polymer for fixing hair is 0.1.
The hair cosmetic according to claim 1, which is 10 to 10% by weight.