JPH10120533A - Hair treatment composition of two-agent type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair treatment composition of two-agent type that gives hair flexibility and wet feeling and maintains sufficient conditioning effects for long time. SOLUTION: This hair treatment composition of two-agent type, which is used for treating the hair in the order of a first and second agents, comprised the first agent which contains a protein hydrolystate, and the second agent which contains cationic surfactant and/or cationic polymer compounds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a two-part hair treatment composition. More specifically, the present invention has a conditioning effect such as giving the hair flexibility, a feeling such as a moist feeling, and a unity to the hair that easily spreads,
The present invention also relates to a two-part hair treatment composition whose effects last for a long time.

[0002]

2. Description of the Related Art Hair is divided into a cuticle layer and a cortex layer from the outside. The cuticle layer has a function of protecting the hair from the outside, and the cortex layer has a function of retaining moisture of the hair. It has been clarified that the original freshness and moisturizing properties of hair are lost by the elution of the protein inside the cortical layer. Therefore, in order to impart a feeling such as flexibility and moistness to the hair, conditioning components such as a cationic surfactant, an oil agent, a silicone derivative, a humectant, a protein and a hydrolyzate thereof are generally left on the hair surface. Although the main focus is on making it work, the conditioning effect obtained in this way is almost lost by one hair wash. In addition, with the aim of improving the shampoo resistance and maintaining the conditioning effect, a cationic or amphoteric substance and an anionic substance are reacted on the hair surface to generate a poorly water-soluble substance on the hair surface, thereby giving a finished feeling. Although a technique for improving the hair quality has been proposed, it cannot be said that the durability is sufficient because the treatment is performed on the surface of the hair.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to provide a two-part hair treatment composition which imparts softness and moist feeling to hair and maintains the conditioning effect for a long time. It is.

[0004]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, by replenishing the inside and the surface of the hair cortex with a protein-like substance and insolubilizing the substance. The inventors have found that the object can be achieved, and have completed the present invention based on this finding. That is, the present invention provides (1) a hair treatment agent for treating hair in the order of the first agent and the second agent, wherein the first agent contains a protein hydrolyzate having an average molecular weight of 50,000 or more; Contains a cationic surfactant and / or a cationic polymer compound. Further, as a preferred embodiment of the present invention, (2) the content of the protein hydrolyzate in the first agent is 0.1 to 7% by weight as the heating residue.
The two-part hair treatment composition according to item (1) and (3) the content of the cationic surfactant and / or the cationic polymer compound in the second part is 0.5 as a heating residue. The two-part hair treatment composition according to the above item (1), which is 10 to 10% by weight.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first part of the two-part hair treatment composition of the present invention contains a protein hydrolyzate having an average molecular weight of 50,000 or more. Examples of the protein hydrolyzate having an average molecular weight of 50,000 or more used in the composition of the present invention include, for example, hydrolyzed keratin obtained by hydrolyzing proteins derived from animals and plants.
Hydrolyzed keratin ethyl, hydrolyzed collagen, hydrolyzed collagen ethyl, hydrolyzed casein, hydrolyzed yeast protein, hydrolyzed wheat, hydrolyzed conchiolin, hydrolyzed silk, hydrolyzed silk ethyl, hydrolyzed plant protein, soy protein hydrolyzate And the like, and powdery and liquid products, and derivatives from the hydrolyzate. For protein hydrolysates having an average molecular weight of 50,000 or more,
Although it contains a small amount of a product degraded to the amino acid level, such a protein hydrolyzate can also be used in the present invention. In the composition of the present invention, if the average molecular weight of the protein hydrolyzate is less than 50,000, the durability of the conditioning effect may be reduced. In the composition of the present invention, the content of the protein hydrolyzate having an average molecular weight of 50,000 or more in the first agent is 0.1 to 7 as a heating residue.
% By weight. When the content of the protein hydrolyzate is less than 0.1% by weight as the residue after heating, the flexibility and moist feeling of the hair may not be sufficiently exhibited. When the content of the protein hydrolyzate exceeds 7% by weight as a residue after heating, the feeling of use during the treatment may be reduced.

The second part of the two-part hair treatment composition of the composition of the present invention contains a cationic surfactant and / or a cationic polymer compound. There is no particular limitation on the cationic surfactant used in the composition of the present invention, for example, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride,
Examples thereof include quaternary ammonium salts such as distearyldimethylammonium chloride, and those obtained by replacing these quaternary ammonium salts with alkylpyridinium salts or amine salts. Examples of the cationic polymer compound used in the composition of the present invention include a vinylpyrrolidone / dialkylaminoalkyl (meth) acrylate copolymer, a cationic cellulose derivative, a cationic polysaccharide, and the like. In the composition of the present invention, the content of the cationic surfactant and / or the cationic polymer compound in the second agent is preferably from 0.5 to 10% by weight as a heating residue. The content of the cationic surfactant and / or the cationic polymer compound is set at 0.
If the amount is less than 5% by weight, the durability of the conditioning effect may be reduced. If the content of the cationic surfactant and / or the cationic polymer compound exceeds 10% by weight as a residue after heating, the feeling of use during the treatment may be reduced.

[0007] The first and second agents of the two-part hair treatment composition of the present invention may include an anionic surfactant, an anionic polymer compound, an oil or fat, a hydrocarbon, a higher alcohol, if necessary. Esters, oils such as silicones, humectants such as glycerin, propylene glycol, 1,3-butylene glycol, sorbitol, pyrrolidone carboxylic acid,
Amino acids, preservatives such as methylparaben and ethylparaben, chelating agents such as edetate, pigments, fragrances and the like can be appropriately compounded. There is no particular limitation on the anionic surfactant used in the composition of the present invention, for example, polyoxyethylene lauryl ether sulfate, polysodium lauryl disodium polyoxyethylene sulfosuccinate, polyoxyethylene coconut oil fatty acid, which are commonly used in shampoos and the like Sodium monoethanolamide sulfate solution, coconut oil fatty acid methylalanine sodium solution, coconut oil fatty acid methyltaurine sodium solution, N-coconut oil fatty acid acyl-L-glutamate triethanolamine, coconut oil fatty acid hydrolyzed collagen sodium solution and the like can be mentioned. . As the anionic polymer compound, for example, sodium carboxymethylcellulose, acrylic resin alkanolamine, vinyl methyl ether-ethyl maleate copolymer, vinyl methyl ether-butyl maleate copolymer, vinyl acetate-crotonic acid copolymer, Examples thereof include crotonic acid-vinyl acetate-vinyl neodecanoate copolymer and natural polymer compounds such as sodium alginate, carrageenan, xanthan gum, sodium chondroitin sulfate, and sodium hyaluronate.

In order to treat the hair with the two-part hair treatment composition of the present invention, the first part is applied to the hair and kept for several minutes, and then the second part is applied and applied for several minutes. After keeping, rinse the hair. The mechanism by which the two-part hair treatment composition of the present invention imparts softness and a moist feeling to hair and maintains the conditioning effect for a long time has an average molecular weight of 5
More than 10,000 protein hydrolysates penetrate into the hair and then react with the cationic surfactant or cationic polymer compound to form a complex that is difficult to dissolve in water inside the cortical layer of the hair and on the surface of the hair It is thought that there is to. Therefore, in the composition of the present invention, the first
It is necessary to treat the hair with the agent and the second agent in this order. According to the composition of the present invention, the conditioning effect of the hair is maintained for a long time, the hair is given flexibility and a moist feeling, and the strength and the moisture content of the hair damaged by perm treatment and the like are improved.

[0009]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention. In the examples and comparative examples, evaluation was performed by the following method. (1) Sensory evaluation Using Japanese hair (female 33 years old) obtained from a beauty salon,
Treatment is performed in the order of the first agent and the second agent, and after washing with hot water and drying, a sensory evaluation is performed on (a) flexibility and (b) moist feeling as follows. A: Very good. ：: Good. ×: Bad. (2) Internal Penetration Using Japanese gray hair (female 46 years old) obtained from a beauty salon, treatment in the order of the first agent and the second agent, washing with hot water and drying, cutting the hair into rings and ninhydrin test solution After coloration using, observation is performed using an optical microscope. In addition, the hair treated and washed with hot water is dried using a commercially available shampoo, shampooing and washing with water are repeated 10 times, the hair is sliced, and the hair is colored using a ninhydrin test solution, and then observed using an optical microscope. I do. ：: Strong coloration inside the hair. (The protein hydrolyzate has penetrated into the inside of the hair.) ：: Strong color development only on the outside of the hair. (Protein hydrolyzate is adsorbed on the outside of the hair.) ×: No coloration. (The protein hydrolyzate does not penetrate or adsorb.) (3) Hair strength Using Japanese hair (female 10 years old) obtained from a beauty salon,
Repeat the permanent treatment 5 times. After the permanent treatment, the first agent,
After treatment in the order of the second agent, the hair is washed and dried, and the strength of the hair is measured. (4) Moisture content of hair Using Japanese hair (female 10 years old) obtained from a beauty salon,
Repeat the permanent treatment 5 times. After the permanent treatment, the first agent,
After treatment in the order of the second agent, the hair is washed and dried, and the water content of the hair is measured by the Karl Fischer method. Example 1 Hydrolyzed wheat solution having an average molecular weight of 250,000 (heating residue: 23% by weight) [Tritisol, manufactured by Croda Japan K.K.] 3
The first part was prepared by mixing parts by weight and 97 parts by weight of ion-exchanged water. Also, 5 parts by weight of cetyltrimethylammonium chloride and 95 parts by weight of ion-exchanged water were mixed to form a second mixture.
An agent was prepared. Japanese hair (female 33 years old) 5g to first agent 5ml
Was applied and left for 10 minutes, then 5 ml of the second agent was further applied and left for 10 minutes. Thereafter, the plate was washed with warm water of 40 ° C., wiped off with a towel, and air-dried. The hair after treatment had very good flexibility and good moist feeling. Similarly, using Japanese gray hair (female 46 years old), the first agent,
The treatment was carried out in the order of the second agent, followed by washing with hot water and drying.
After the hair was sliced and colored using a ninhydrin TS, it was observed using an optical microscope.It was strongly reddish purple inside the hair, and the protein hydrolyzate penetrated into the hair. I knew it was there. further,
The hair which has been treated and washed with hot water is dried using a commercially available shampoo, shampoo and washing with water are repeated 10 times, and similarly colored with ninhydrin test solution, and observed, the color is strong even inside the hair, and depending on the shampoo, ,
It was found that the protein hydrolyzate that had permeated into the hair did not desorb. 5 perms on Japanese hair (10-year-old female)
After repeating the treatment twice, the treatment was similarly performed in the order of the first agent and the second agent, followed by washing with hot water and drying. The strength of the hair was 104.8 g for untreated hair, 77.5 g for 5 times perm,
The weight is 82.2 g after the treatment, and it can be seen that the hair strength reduced by the perm treatment is improved by the treatment. Also, the water content of hair
Untreated hair 11.3% by weight, 10.1 after 5 treatments perm
% By weight, 10.8% by weight after the treatment,
It can be seen that the moisture content of the hair, which was reduced by the perm treatment, was improved by the treatment. Examples 2 to 8 Treatment was carried out using the first and second agents shown in Table 1 in the same manner as in Example 1, and the sensory evaluation, the internal permeability, the strength of the hair, and the water content of the hair were evaluated. Was. Third result
It is shown in the table. Comparative Example 1 A treatment was performed in the same manner as in Example 1 except that the second agent containing no cetyltrimethylammonium chloride was used, and the sensory evaluation, the internal permeability, the strength of the hair, and the moisture content of the hair were evaluated. Both the flexibility and the moist feeling of the hair were poor, the ninhydrin test solution did not show any color, and it was found that the protein hydrolyzate neither adsorbed to the outside of the hair nor penetrated into the hair. The strength of the hair was 77.3 g, and the water content of the hair was 10.1% by weight, all of which were lower than those in Example 1. These values are almost equal to the values of the strength and the water content after the permanent treatment 5 times, and it is understood that the strength and the water content of the hair are not improved by this treatment. Comparative Examples 2 to 8 Treatment was performed using the first and second agents shown in Table 2 in the same manner as in Example 1, and the sensory evaluation, the internal permeability, the strength of the hair, and the moisture content of the hair were evaluated. Was. Third result
It is shown in the table.

[0010]

[Table 1]

[0011]

[Table 2]

[Note] Hydrolyzed wheat solution having an average molecular weight of 250,000: heating residue 23% by weight, Tritisol, manufactured by Croda Japan K.K. Hydrolyzed keratin solution having an average molecular weight of 100,000: heating residue 15
% By weight, manufactured by Croda Japan Kerazole. Hydrolyzed keratin solution having an average molecular weight of 1,000: heating residue 25% by weight. Cationic cellulose derivative: Polymer JR-400 manufactured by Union Carbide Japan Co., Ltd. Hydrolyzed collagen solution having an average molecular weight of 4,000: heating residue 20% by weight. Coconut oil fatty acid methylalanine sodium solution: heating residue 2
5% by weight. Polyoxyethylene lauryl ether sulfate: heating residue 27% by weight. Coconut oil fatty acid methyltaurine sodium: heating residue 27
weight%.

[0013]

[Table 3]

Examples 1 to 3 were treated with a first agent containing a protein hydrolyzate having an average molecular weight of 50,000 or more, a second agent containing a cationic surfactant or a cationic polymer compound.
In 8, the softness and moist feeling of the hair are both good, and the protein hydrolyzate penetrates into the interior of the hair,
Moreover, even if shampoo is repeated, it is not detached, and the strength and moisture content of the hair which have been reduced by the permanent treatment are improved.
On the other hand, in Comparative Examples 1 to 5 in which the second agent does not contain a cationic surfactant or a cationic polymer compound, the flexibility and moistness of the hair are both poor, and the protein hydrolyzate is directed to the outside of the hair. Neither adsorption nor permeation into the inside of the hair, and the strength and moisture content of the hair, which have been reduced by the perm treatment, are not improved. In Comparative Examples 6 to 8 in which the average molecular weight of the protein hydrolyzate in the first agent was too low,
The flexibility and moistness of the hair are both poor, and the protein hydrolyzate is adsorbed to the outside of the hair after the treatment, but it is detached by repeated shampooing, and the strength and water content of the hair that have been reduced by the perm treatment are reduced. Not improved.

[0015]

When the hair is treated with the two-part hair treatment composition of the present invention, the hair becomes soft and moist, and the protein hydrolyzate penetrates into the inside of the hair and is repeatedly shampooed. Because it does not detach, it has excellent sustaining effect,
The strength and moisture content of the hair, which have been reduced by the permanent treatment, are improved.

Claims (1)

[Claims] 1. A hair treatment agent for treating hair in the order of a first agent and a second agent, wherein the first agent has an average molecular weight of 5
A two-part hair treatment composition, comprising 10,000 or more protein hydrolysates, wherein the second agent comprises a cationic surfactant and / or a cationic polymer compound.