JP2010285389A - Hair-treating agent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair-treating agent composition which can easily maintain the good softness and finger passableness of hair, even when repeatedly applied to the hair. <P>SOLUTION: This hair-treating agent composition is characterized by comprising (A) a cationized chitosan, (B) a basic amino acid, and (C) an acidic amino acid compound. The hair-treating agent composition is preferably a post-treating agent used after the chemical treatment of the hair. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hair treatment composition containing cationized chitosan.

  As a hair protecting component, cationized chitosan which is a derivative of chitosan is known (see Patent Document 1). This cationized chitosan protects the hair by forming a protective film on the surface of the hair.

Japanese Unexamined Patent Publication No. 60-500059

  By the way, since cationized chitosan is excellent in film forming ability, it is easy to improve the fingering by applying a hair treatment agent containing cationized chitosan to hair. However, when a hair treatment agent containing cationized chitosan is repeatedly applied to hair, the hair tends to feel stiff, and the goodness of fingering after application tends to be difficult to feel.

  The present invention has been made in view of such circumstances, and the object thereof is a hair treatment agent that can easily maintain the softness of the hair and the goodness of the fingers even when it is repeatedly applied to the hair. It is to provide a composition.

  In order to achieve the above object, the hair treatment composition of the invention described in claim 1 is a hair treatment composition containing (A) cationized chitosan, comprising (B) a basic amino acid and (C The gist is to contain acidic amino acids.

The gist of the invention described in claim 2 is that the hair treatment composition according to claim 1 is a post-treatment agent used after chemical treatment of hair.
The gist of the invention described in claim 3 is the hair treatment composition according to claim 2, wherein the chemical treatment is a dyeing treatment using an oxidative hair dye.

  The invention according to claim 4 is the hair treatment composition according to any one of claims 1 to 3, wherein the (C) acidic amino acids are L-glutamic acid, L-aspartic acid and taurine. The summary is that it is at least one selected from

  ADVANTAGE OF THE INVENTION According to this invention, even when it is a case where it applies repeatedly to hair, the hair treatment agent composition which is easy to maintain the softness of a hair and the goodness of a finger is provided.

Hereinafter, the embodiment which actualized the hair-treatment agent composition of this invention is described in detail.
The hair treatment composition of this embodiment contains (A) cationized chitosan, (B) basic amino acid, and (C) acidic amino acids.

  (A) Cationized chitosan is contained to improve the fingering of hair. Cationized chitosan is a kind of chitosan derivative, and is obtained by further cationizing chitosan obtained by deacetylating chitin obtained from a natural product. Chitin can be obtained from, for example, crustaceans such as crabs and shrimps, squid, krill, insects, and various fungi. Chitosan is a deacetylated product of chitin and is a basic polysaccharide having 2-amino-2-deoxy-D-glucose (glucosamine) as a structural unit. The cationized chitosan can be obtained by introducing at least one cationic compound of a tertiary amino group and a quaternary ammonium group into chitosan. Examples of the cationic compound include 2-chloroethyldiethylamine and its hydrochloride, 3-chloro-2-hydroxypropyldiethylamine, 2,3-epoxypropyldimethylamine, trimethyl-3-chloro-2-hydroxypropyltrimethylammonium chloride. And 2,3-epoxypropyltrimethylammonium chloride. The cationized chitosan can also be obtained by cationizing chitosan having an amino group alkylated. Examples of the cationized chitosan include cationized chitosan described in Patent Document 1 and cationized chitosan commercially available from Dainichi Seika Kogyo Co., Ltd. Such cationic chitosan may be contained alone or in combination of two or more.

  The content of (A) cationized chitosan in the hair treatment composition is preferably 0.0001 to 1% by mass, more preferably 0.0005 to 1% by mass. When the content of the cationized chitosan is 0.0001% by mass or more, the effect of improving the fingering of the hair is easily obtained. On the other hand, when the content of the cationized chitosan exceeds 1% by mass, it is difficult to obtain an effect of excellent hair softness.

  (B) A basic amino acid is contained with acidic amino acids, and gives softness to hair. Examples of basic amino acids include arginine, lysine, hydroxylysine, histidine and ornithine. Basic amino acids may be contained alone or in combination of two or more. The basic amino acid may be L-form, D-form or DL-form, or may be formulated as a salt. Examples of basic amino acid salts include sodium salts, potassium salts, triethanolamine salts, and zinc salts. Among the basic amino acids, at least one selected from L-arginine, L-lysine and L-histidine is preferable.

  The content of the basic amino acid in the hair treatment composition is preferably 0.001 to 5 mass%, more preferably 0.005 to 3 mass%. When the content of the basic amino acid is 0.001% by mass or more, softness is imparted to the hair, but it is easily obtained. On the other hand, when the content of the basic amino acid exceeds 5% by mass, the hair tends to be sticky.

  (C) Acidic amino acids are contained in order to impart softness to hair together with basic amino acids. Examples of acidic amino acids include aspartic acid, glutamic acid, 4-carboxyglutamic acid, S-carboxymethylcysteine, cysteic acid, taurine (aminoethylsulfonic acid), acetylglutamic acid, and pyrrolidone carboxylate. The acidic amino acids may be contained alone or in combination of two or more. Among the acidic amino acids, the acidic amino acids having optical isomers may be L-form, D-form or DL-form, and the acidic amino acids may be formulated as a salt. Examples of the salt of acidic amino acids include sodium salt, potassium salt, triethanolamine salt, zinc salt and the like. Among acidic amino acids, at least one selected from taurine, L-glutamic acid and L-aspartic acid is preferable.

  The content of acidic amino acids in the hair treatment composition is preferably 0.001 to 5 mass%, more preferably 0.005 to 3 mass%. When the content of acidic amino acids is 0.001% by mass or more, the effect of imparting softness to the hair is easily obtained. On the other hand, when the content of acidic amino acids exceeds 5% by mass, the hair tends to be sticky.

  For the hair treatment composition, for example, water or lower alcohol, water-soluble polymer compound, oil component, polyhydric alcohol, surfactant, sugar, preservative, stabilizer, pH adjuster, Microbial extracts, protein hydrolysates, herbal extracts, vitamins, fragrances, antioxidants, ultraviolet absorbers, and chelating agents may be included.

  Water or lower alcohol is contained as a solvent or dispersion medium for each component. Examples of the water-soluble polymer compound include an anionic polymer compound, a cationic polymer compound, a nonionic polymer compound, and an amphoteric natural or synthetic polymer compound. Examples of the cationic polymer compound include polydimethylmethylene piperidinium chloride solution, hydroxyethyl cellulose dimethyl diallylammonium chloride, polyquaternium-10, and cationized guar gum. Examples of nonionic synthetic polymer compounds include hydroxyethyl cellulose and polyethylene glycol. Examples of the amphoteric synthetic polymer compound include polyquaternium-22, polyquaternium-39, and polyquaternium-47.

Examples of the oil component include fats and oils, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters, and silicones.
Examples of fats and oils include lanolin, olive oil, camellia oil, shea fat, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado Oil, macadamia nut oil, castor oil, coconut oil, and evening primrose oil. Examples of the wax include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin. Examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, aralkyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, myristyl alcohol, decyltetra Examples include decanol and lanolin alcohol.

  Examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum. Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid. Examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceralkyl alcohol, and isostearyl glyceryl ether.

  Examples of esters include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl stearate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate, Octyldodecyl ricinoleate, fatty acid cholesteryl / lanosteryl having 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, cetyl caprate, tricapryl Examples include glyceryl acid, diisostearyl malate, dioctyl succinate, and cetyl 2-ethylhexanoate.

  Examples of the silicone include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, and a highly polymerized silicone having an average degree of polymerization of 650 to 10,000. , Polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, carboxy-modified silicone, and fluorine-modified silicone.

  Examples of the polyhydric alcohol include glycol and glycerin. Examples of the glycol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerin include glycerin, diglycerin, and polyglycerin.

Examples of the surfactant include an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant.
Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylic acid. N-acyl amino acid type surfactants such as salts, α-sulfone fatty acid salts, sodium cocoyl glutamate, phosphate mono- or diester type surfactants, and sulfosuccinic acid esters. Examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, and triethanolamine. Examples of the alkyl sulfate include sodium lauryl sulfate.

  Examples of cationic surfactants include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride (cetrimonium chloride), stearyl trimethyl ammonium chloride (steartrimonium chloride), behenyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl bromide. Ammonium, stearyltrimethylammonium bromide, lanolin ethylsulfate fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, behenyltrimethylammonium methylsulfate and quaternium-91.

  Examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, and laurylbetaine (lauryldimethylaminoacetic acid betaine).

  Examples of the nonionic surfactant include ether type nonionic surfactants and ester type nonionic surfactants. Examples of ether type nonionic surfactants include polyoxyethylene (hereinafter referred to as POE) cetyl ether (cetes), POE stearyl ether (steares), POE behenyl ether, POE oleyl ether (ores), POE lauryl ether ( Laureth), POE octyldodecyl ether, POE hexyl decyl ether, POE isostearyl ether, POE nonyl phenyl ether, POE octyl phenyl ether, POE cetyl stearyl diether and POE lauric acid monoethanolamide.

  Examples of the ester type nonionic surfactant include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, monomyristic acid POE glycerin, tetraoleic acid POE sorbite, hexastearic acid POE sorbit, monolauric acid POE sorbit, POE sorbite beeswax, monooleic acid polyethylene glycol, monostearic acid polyethylene glycol, monolauric acid polyethylene glycol, distearic acid polyethylene glycol, lipophilic mono Glycerol oleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, Sorbitan oleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid ester, decaglyceryl monolaurate (polyglyceryl-10 laurate), decaglyceryl monostearate , Decaglyceryl monooleate, and decaglyceryl monomyristate.

  Examples of the sugar include sorbitol, maltose, and glycosyl trehalose. Examples of the preservative include sodium benzoate and methyl paraben. Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid. Examples of the pH adjuster include lactic acid, levulinic acid, glycolic acid, tartaric acid, malic acid, succinic acid, citric acid, 2-amino-2-methyl-1-propanol (AMP), and triethanolamine (TEA). It is done. Examples of the plant / microorganism extract include hydrolyzed yeast extract having a moisturizing effect. Examples of the protein hydrolyzate include (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed collagen and hydroxypropyltrimonium hydrolyzed wheat protein. Examples of the antioxidant include ascorbic acid and sulfite. Examples of the chelating agent include ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid and salts thereof, and hydroxyethanediphosphonic acid (HEDP) and salts thereof. Moreover, you may contain at least 1 type chosen from what is listed in "a quasi-drug raw material specification" (June 2006 issue, Yakuji Nippo).

The dosage form of the hair treatment composition is not particularly limited, and examples thereof include an aqueous solution, a dispersion, an emulsion, a gel, a foam, and a cream.
The hair to which the hair treatment composition is applied may be in a dry state or a wet state. The hair treatment composition may be configured to be dried after being washed away with water or warm water, or may be configured to be dried without being washed away. The hair treatment composition is in the form of a product such as a shampoo, rinse, treatment, conditioner, or cosmetic liquid. Such a hair treatment composition is applied multiple times through the stage of the drying treatment for drying the hair, so that its effects are continuously exhibited. The drying process may be drying with a dryer or natural drying.

  Now, when the hair treatment composition of this embodiment is applied to hair, the coating of hair is improved by forming a film of cationized chitosan on the hair surface. Further, the hair treatment composition is repeatedly applied through a drying treatment stage for drying the hair, for example, as applied during hair washing. This replenishes the hair with cationized chitosan. At this time, the cationized chitosan has a high adsorptive power to the hair and is presumed to be easily fixed on the hair. For this reason, it is considered that the accumulation of cationized chitosan tends to lose the softness of the hair, and tends to make it difficult to feel the goodness of fingering the hair. In this regard, it is speculated that basic amino acids and acidic amino acids have an action of suppressing the accumulation of cationized chitosan or an action of imparting flexibility to the accumulated cationized chitosan. As a result, it is presumed that the accumulation of cationized chitosan can be suppressed, so that softness can be imparted to the hair while maintaining the finger passage improved by the cationized chitosan.

  In addition, when cationized chitosan is repeatedly applied to highly damaged hair, it is difficult to impart softness to the hair and it is difficult to feel the goodness of the hair. That is, it is presumed that cationized chitosan is more easily fixed in hair having a high degree of damage, and it is considered that cationized chitosan is more likely to accumulate by repeatedly applying such cationized chitosan. In this respect, the hair treatment composition of the present embodiment is effective in, for example, imparting softness to the hair while maintaining the finger of the hair damaged by ultraviolet rays. For example, after chemical treatment using an oxidative hair dye, a hair bleaching agent and a permanent wave agent, the degree of damage to the hair tends to increase. Therefore, as a post-treatment agent used after such chemical treatment, It is particularly effective to use the hair treatment composition of the embodiment.

Furthermore, the hair treatment composition of the present embodiment exhibits an effect of suppressing fading of the hair when applied as a post-treatment agent for hair that has been dyed with an oxidative hair dye.
The oxidative hair dye is composed of a first hair dye containing an oxidative dye and an alkaline agent, and a second hair dye containing an oxidant. The oxidative hair dye is used in accordance with a conventional method for preparing each of the above-mentioned agents.

  The first hair dye contains at least an oxidation dye and an alkali agent. An oxidative dye is a compound that can develop color due to oxidative polymerization by an oxidant contained in the second hair dye of the oxidative hair dye, and is classified as a dye intermediate and a coupler. The oxidation dye contains at least a dye intermediate.

  Examples of the dye intermediate include phenylenediamines (excluding metaphenylenediamine), aminophenols (excluding metaaminophenol, 2,4-diaminophenol, and paramethylaminophenol), toluylenediamine. (Excluding toluene-3,4-diamine and toluene-2,4-diamine), diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines (however, 2,6-diamino Except pyridine), and salts thereof. Examples of the salts include hydrochloride, sulfate, acetate, and the like. These may be contained alone or in combination of two or more.

  Couplers develop color by binding to dye intermediates. Examples of the coupler include resorcin, pyrogallol, catechol, metaaminophenol, metaphenylenediamine, 2,4-diaminophenol, 1,2,4-benzenetriol, toluene-3,4-diamine, and toluene-2,4-diamine. , Hydroquinone, α-naphthol, 2,6-diaminopyridine, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, paramethylaminophenol, 2,4-diaminophenoxyethanol, gallic acid, tannic acid, ethyl gallate, gallic acid Examples include methyl acid, propyl gallate, pentaploid, 5- (2-hydroxyethylamino) -2-methylphenol, and salts thereof. These may be contained alone or in combination of two or more.

  Since the oxidative dye can change the color tone of the hair in various ways, it is preferable that at least one selected from the specific examples of the dye intermediate and at least one selected from the specific examples of the coupler. Composed.

  The content of the dye intermediate in the oxidative hair dye is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass. If the content of the dye intermediate is less than 0.01% by mass, sufficient dyeability may not be obtained. Even if the content of the dye intermediate exceeds 10% by mass, the dyeability does not improve any more, and the economics of hair dyeing may be reduced.

  The content of the coupler in the oxidative hair dye is preferably 0.01 to 5% by mass, more preferably 0.1 to 3% by mass. If the coupler content is less than 0.01% by mass, sufficient dyeability may not be obtained. Even if the content of the coupler exceeds 5% by mass, the dyeability is not further improved, so that the economical efficiency of the hair dye may be lowered.

  The first hair dyeing agent is at least one selected from, for example, oxidation dyes listed in "Quasi-drug raw material standards" (issued in June 2006, Yakuji Nippo), and direct dyes as dyes other than the oxidation dyes. May be contained as appropriate.

  The alkaline agent promotes the action of the oxidizing agent contained in the second hair coloring agent of the oxidizing hair dye, and improves the dyeability by swelling the hair and improving the permeability of the dye into the hair. . Examples of the alkaline agent include ammonia, alkanolamines, organic amines, inorganic alkalis, basic amino acids, and salts thereof. Examples of organic amines include 2-amino-2-methyl-1,3-propanediol and guanidine. Examples of the inorganic alkali include sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate. Examples of basic amino acids include arginine and lysine. Examples of the salt include ammonium salts. These may be contained alone or in combination of two or more.

  The content of the alkaline agent is preferably such an amount that the pH of the first dyeing agent is in the range of 8-12. If the pH of the first dyeing agent is less than 8, when the first dyeing agent is mixed with the second dyeing agent, if the second dyeing agent contains hydrogen peroxide as an oxidizing agent, There is a possibility that the action of hydrogen oxide is not sufficiently promoted. When the pH of the first hair dye agent exceeds 12, problems such as damage to the hair tend to occur when the oxidized hair dye is applied to the hair.

  The content of the alkaline agent in the first hair dyeing agent is preferably 0.1 to 12% by mass, more preferably 0.2 to 11% by mass, further preferably 0.6 to 10% by mass, and most preferably 0. .6-9 mass%. If the content of the alkaline agent in the first hair dyeing agent is less than 0.1% by mass, sufficient leveling property may not be obtained. On the other hand, when the content of the alkaline agent in the first hair dye agent exceeds 12% by mass, it may be difficult to obtain a good feel in the finished hair.

  The first hair dye contains a predetermined amount of water, so that the first hair dye is prepared as an emulsion, solution or dispersion. The content of water in the first hair dyeing agent is preferably 50 to 95% by mass, more preferably 70 to 90% by mass. When the water content is less than 50% by mass, it may be difficult to obtain an emulsion, solution or dispersion. When water content exceeds 95 mass%, there exists a possibility that it may become difficult to ensure the uniformity and stability of the hair dye 1st agent.

  The first hair dyeing agent is, for example, an oily component, a surfactant, a water-soluble polymer compound, a polyhydric alcohol, a saccharide, a preservative, a chelating agent, a stabilizer, a pH adjuster, a plant / microbe extract. , Herbal extracts, vitamins, fragrances, and ultraviolet absorbers may be included. Specific examples of these components include those exemplified in the hair treatment composition.

The dosage form of the first hair dyeing agent is not particularly limited, and examples thereof include an aqueous solution, a dispersion, an emulsion, a gel, a foam, and a cream.
The second dyeing agent contains at least an oxidizing agent. The oxidant develops color by oxidative polymerization of an oxidative dye. Examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, peroxide. Barium, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphate hydrogen peroxide adduct, and pyrophosphate hydrogen peroxide adduct. These may be contained alone or in combination of two or more. The oxidizing agent is preferably composed of hydrogen peroxide because it has an excellent decolorizing power for melanin contained in the hair.

  The content of the oxidizing agent in the second hair dyeing agent is preferably 0.1 to 10.0% by mass, more preferably 0.5 to 8.0% by mass. When the content of the oxidizing agent is less than 0.1% by mass, it may be difficult to sufficiently oxidatively polymerize the oxidation dye. When content of an oxidizing agent exceeds 10.0 mass%, there exists a possibility that it may become easy to damage hair.

  The hair dyeing second agent may contain water, the above oily component, a surfactant and the like as other components. Moreover, you may contain at least 1 type chosen from what is listed in "a quasi-drug raw material specification" (June 2006 issue, Yakuji Nippo).

The dosage form of the second hair dyeing agent is not particularly limited, and examples thereof include an aqueous solution, a dispersion, an emulsion, a gel, a foam, and a cream.
After such oxidative hair dye is applied to the hair, the hair is dyed by washing away the oxidative hair dye. When the hair treatment composition is applied to the hair to which the oxidative hair dye is applied as described above, the cationized chitosan is adsorbed so that the dye is hardly detached from the hair. Further, in the presence of basic amino acids and acidic amino acids, it is presumed that cationized chitosan can be easily adapted to damaged parts of hair, and film formation at such parts is promoted. As a result, it is considered that the hair quality is such that it is difficult to remove the dye.

  As described above, the hair treatment composition is used as a post-treatment agent for dyed hair, so that it can impart softness to the hair while maintaining the fingering of the hair, and the hair can be faded. Can be suppressed.

  The hair treatment composition is preferably applied to hair that has been wetted by washing away the oxidative hair dye. Thus, by applying to the hair immediately after the dyeing process, the color tone immediately after the dyeing process is easily maintained. In addition, when applying the hair treatment composition to wet hair, it may be applied to hair in a state in which the oxidative hair dye is washed away with water or warm water, or with a normal shampoo after the dyeing treatment. It may be applied to the washed hair.

According to the embodiment described in detail above, the following effects are exhibited.
(1) When cationized chitosan is repeatedly applied to hair, the hair tends to feel hard. In this regard, the hair treatment composition of the present embodiment contains basic amino acids and acidic amino acids. For this reason, it becomes possible to impart softness to the hair while maintaining the fingering of the hair improved by the cationized chitosan. Therefore, even when it is repeatedly applied to the hair, a hair treatment composition that can easily maintain the softness and goodness of the finger is provided.

  (2) When cationized chitosan is repeatedly applied to hair having a high degree of damage, the tendency of the hair to feel firm is enhanced. In this regard, since the hair treatment composition of the present embodiment can impart softness to hair, it is applied to hair after chemical treatment using an oxidative hair dye, a hair bleaching agent, and a permanent wave agent. Effective as a post-treatment agent to be applied.

  (3) In hair dyed with an oxidative hair dye, the effect of inhibiting fading is exhibited by cationized chitosan. At this time, since a basic amino acid and acidic amino acids are used in combination, a fading suppression effect is further exhibited.

  (4) When the acidic amino acids are at least one selected from L-glutamic acid, L-aspartic acid, and taurine, the effects described in the column (1) can be obtained more remarkably.

In addition, the said embodiment can also be changed and comprised as follows.
-After applying normal shampoo to hair, you may use the said hair treatment agent composition comprised, for example as a conditioning agent.

-For example, after using the said hair treatment agent composition comprised as a shampoo agent, you may process hair with a normal conditioning agent etc.
-When the hair treatment composition is repeatedly applied several times through the stage of drying treatment for drying the hair, the hair treatment composition may be applied daily, for example, 3 days, 5 days It may be carried out after a period of every 7 days.

-The hair treatment composition may be divided into a plurality of agents, and the plurality of agents may be mixed at the time of use.
The hair treatment agent composition may be divided into a plurality of agents and may be configured to be mixed on the hair by sequentially applying the plurality of agents to the hair.

  -Although the said oxidation hair dye is comprised from the hair dye 1st agent and the hair dye 2nd agent, while dividing | segmenting at least one agent into a several agent, and using these some agents at the time of use You may comprise so that it may mix.

Next, the technical idea that can be grasped from the above embodiment will be described below.
(B) A hair treatment method for post-treating hair that has been subjected to a dyeing treatment in which the hair dye is applied after the hair dye has been applied to the hair, wherein the hair has been wetted by washing out the hair dye. A hair treatment method in which the hair treatment composition is applied to the treated hair.

  (B) The hair treatment method according to (a) above, wherein the hair treatment composition is applied a plurality of times via a hair drying treatment.

Next, the embodiment will be described more specifically with reference to examples and comparative examples.
(Examples 1-6, Comparative Examples 1-7)
The shampoo of each example was prepared by mixing each component shown by Table 1 and Table 2. In addition, the unit of the numerical value which shows the compounding quantity of each table | surface is the mass%, The value has shown the pure part of the component as described in each table | surface. As the cationized chitosan, chitosan hydroxypropyltrimonium chloride is used.

<Preparation of hair bundle sample for test>
A black hair bundle having a length of 15 cm was prepared, and the black hair bundle was decolored by a decoloring agent (manufactured by Hoyu Co., Ltd., (trade name) Promaster EX LT) and then dried. Next, the decolorized hair bundle was subjected to a permanent treatment with a permanent agent (manufactured by Hoyu Co., Ltd., (trade name) Lutea TG) and then dried. Then, the hair bundle sample for a test was produced by dye | staining the hair bundle brown using oxidation hair dye (The Hoyu Co., Ltd. make, (brand name) Promaster EX B 7/6).

<Test procedure: Shampoo of each example>
Hair treatment 1: Using the shampoo of each example, the hair bundle sample for the test was washed according to a conventional method.

  Hair treatment 2: Subsequently, after the towel of the hair bundle sample was dried, a treatment of a type that does not wash away was applied, and the hair bundle was dried. In addition, the treatment of the type which does not wash away here replaces each component of (A), (B) and (C) with purified water among each component contained in the treatment which is not washed out of Example 7 of Table 3 below. Prepared. By such hair treatment 2, a hair bundle sample (hair bundle sample after the first application) to which the shampoo of each example was applied once was prepared. Moreover, what performed only hair treatment 1 and 2 as a comparative hair bundle sample for evaluating the fading suppression effect by the following hair treatment 3 was prepared.

  Hair treatment 3: Subsequently, each treatment of the hair treatments 1 and 2 was carried out 9 times to prepare a hair bundle sample to which the shampoo of each example was applied 10 times in total. The following evaluation was performed about the hair | bristle bundle sample of each case.

<Hair flexibility>
Twenty panelists evaluated the softness of the hair bundle sample by sensory evaluation. Based on the number of panelists judged to feel softness among the 20 panelists, the evaluation was made in five stages as follows.

20-17 people: Evaluation 5
16-13 people: Evaluation 4
12-9 people: Evaluation 3
8-5 people: Evaluation 2
4 to 0 people: Evaluation 1
In each table, the evaluation results of the flexibility of the hair in each example are also shown.

<Good fingering>
Twenty panelists passed their fingers through the hair bundle samples to which the shampoos of each example were applied, and sensory evaluation of the goodness of the fingers was performed. Based on the number of panelists judged to feel good as a finger, it was evaluated in five levels, similar to the above-mentioned hair flexibility. In each table, evaluation results of goodness of fingers in each example are also shown.

<Discoloration suppression effect>
About the color tone of the hair bundle sample, 20 panelists compared with the hair bundle sample for comparison visually. Based on the number of panelists judged that the fading suppression effect was exerted among 20 panelists, the evaluation was made in five stages in the same manner as the flexibility of the hair. In each table, the evaluation results of the fading suppression effect in each example are also shown.

表１及び表２に示されるように、各実施例では、初回適用後、及び１０回適用後のいずれについても、毛髪の柔らかさ及び指通りの良さの評価は、各比較例よりも優れる結果となった。

As shown in Table 1 and Table 2, in each example, the evaluation of the softness of the hair and the goodness of fingering is superior to each comparative example after the first application and after 10 applications. It became.

  In Comparative Examples 1 to 3, since cationized chitosan was not contained, the results were inferior to those of Examples in terms of fingering of hair. From the results of Comparative Examples 2 and 3, it can be seen that even when a chitosan derivative other than the cationized chitosan is contained, it is inferior to each example in terms of the finger of the hair.

  In Comparative Examples 4 to 7, since at least one of basic amino acids and acidic amino acids was not contained, after applying 10 times, both the softness of the hair and the fingering were inferior to each example. It was. In Comparative Example 5, L-proline, which is a kind of neutral amino acid, and acidic amino acids are used in combination. In Comparative Example 7, a basic amino acid and tyrosine, which is a kind of neutral amino acid, are used in combination. From the results of Comparative Examples 5 and 7, it can be seen that the effect of enhancing the softness of the hair and the effect of fingering is exhibited only when a basic amino acid and acidic amino acids are used in combination with cationized chitosan. .

  Furthermore, in each Example, the result superior to each Comparative Example was obtained about the fading suppression effect after 10 times application. It can be seen from the results of Comparative Examples 5 and 7 that such a fading inhibiting effect is exhibited only when a basic amino acid and acidic amino acids are used in combination with the cationized chitosan.

(Examples 7 to 11 and Comparative Examples 8 to 14)
Each example hair treatment was prepared by mixing the ingredients shown in Tables 3 and 4. This hair treatment is a type that is used without being washed off after being applied to the hair. In addition, the unit of the numerical value which shows the compounding quantity of each table | surface is the mass%. As the cationized chitosan, chitosan hydroxypropyltrimonium chloride is used.

The test hair sample was prepared in the same manner as described above in <Preparation of test hair bundle sample>.
<Test procedure: Non-washing type hair treatment in each case>
Hair treatment 1: A hair bundle sample for the test was washed according to a conventional method using a shampoo. The shampoo here is prepared by replacing each component of (A), (B) and (C) with purified water among the components contained in the shampoo of Example 1 in Table 1.

  Hair treatment 2: Subsequently, after the hair bundle sample is towel-dried, a non-washing-type treatment in each example is applied, and the hair bundle is dried, whereby the hair to which the non-washing-type treatment in each example is applied once A bundle sample (hair bundle sample after the first application) was prepared. Moreover, in order to evaluate the fading suppression effect through the following hair treatment 3, what performed only hair treatment 1 and 2 as a hair bundle sample for a comparison was prepared.

  Hair treatment 3: Subsequently, each treatment of the hair treatments 1 and 2 was carried out 9 times to prepare a hair bundle sample to which the treatment of the type that was not washed out in each example was applied 10 times in total. The hair bundle samples of each example were evaluated by the methods described in the respective columns of <Hair Flexibility>, <Fingering Goodness>, and <Fade Inhibition Effect>. Table 3 also shows the evaluation results of each example.

表３及び表４に示されるように、各例の洗い流さないタイプのトリートメントにおいても、上記各例のシャンプーと同様に各実施例は各比較例よりも優れる評価結果が得られた。

As shown in Tables 3 and 4, also in each type of treatment that was not washed away, each example gave an evaluation result superior to each comparative example, as in the case of the shampoos in the above examples.

Claims (4)

(A) A hair treatment composition containing a cationized chitosan, which comprises (B) a basic amino acid and (C) an acidic amino acid. The hair treatment composition according to claim 1, which is a post-treatment agent used after chemical treatment of hair. The hair treatment composition according to claim 2, wherein the chemical treatment is a dyeing treatment using an oxidative hair dye. The hair treatment composition according to any one of claims 1 to 3, wherein the (C) acidic amino acids are at least one selected from L-glutamic acid, L-aspartic acid and taurine. object.