JP2006316012A - Hair treating agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair treating agent that can increase the hair improving effect such as moisture retention. <P>SOLUTION: The hair treating agent comprises the component (A) at least one selected from the group consisting of pyrrolidonecarboxylic acid and salts thereof and the component (B) at least one selected from the group consisting of hydroxymethoxybenzophenonesulfonic acid, dihydroxydimethoxybenzophenonedisulfonic acid, pantetheine-S-sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, p-phenolsulfonic acid and their salts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hair treatment agent, and more particularly to a hair treatment agent that can improve the effect of improving hair such as water retention.

Conventionally, a hair treatment agent described in Patent Document 1 is known as a treatment agent for improving damaged hair by improving water retention, elasticity and the like. Such a hair treatment agent contains an ammonium salt, arginine, ethanolamine and the like as active ingredients for improving damaged hair.
JP 2001-81013 A (pages 7 to 11)

  By the way, the hair treatment agent described in Patent Document 1 exhibits a hair improving effect when an active ingredient such as an ammonium salt, arginine or ethanolamine penetrates into the hair. However, the hair treatment agent described in Patent Document 1 has a problem that the effect of improving hair such as water retention due to penetration of the active ingredient into the hair is insufficient.

  The present invention has been made paying attention to the problems existing in the prior art as described above. The object is to provide a hair treatment agent that can improve the effect of improving hair such as water retention.

  In order to achieve the above object, the invention described in claim 1 is based on (A) component: at least one component selected from pyrrolidonecarboxylic acid and salts thereof, and (B) component: hydroxymethoxybenzophenonesulfonic acid, dihydroxydimethoxybenzophenone. It contains at least one component selected from disulfonic acid, pantethein-S-sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, paraphenolsulfonic acid and salts thereof.

The invention according to claim 2 is used as a hair modifier in the invention according to claim 1.
The invention according to claim 3 is used as at least one selected from a hair dye and a pre-dyeing agent in the invention according to claim 1.

  The invention according to claim 4 is used as a hair dyeing post-treatment agent in the invention according to claim 1.

According to the present invention, the following effects can be exhibited.
According to the first aspect of the present invention, the effect of improving hair such as water retention can be improved by allowing the active ingredient to penetrate into the hair.

According to invention of Claim 2, in addition to the effect of the said invention, the correction effect of the hair in a hair modification process can also be improved by the improvement of the permeability | transmittance of an active ingredient.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the effect of improving leveling in the hair dyeing treatment can be obtained by improving the permeability of the hair dye.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, an effect of improving the suppleness of hair can also be obtained.

(First embodiment)
Hereinafter, a first embodiment in which the present invention is embodied as a hair treatment agent will be described in detail.
The hair treatment agent according to the first embodiment includes (A) at least one component selected from pyrrolidone carboxylic acid and a salt thereof as component (A), hydroxymethoxybenzophenone sulfonic acid, dihydroxydimethoxybenzophenone disulfonic acid, and pantethein-S as component (B). -It contains at least one component selected from sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, paraphenolsulfonic acid and salts thereof. These (A) component and (B) component are contained as hair improvement components, such as water retention.

  The pyrrolidone carboxylic acid as component (A) is also called pyroglutamic acid and can be synthesized by heating under pressure with an equal amount of water. Examples of the pyrrolidone carboxylate include alkali metal salts such as sodium salt and potassium salt, salts with basic amino acids such as triethanolamine salt, chitosan salt and lysine / arginine. The content of the component (A) in the hair treatment agent is preferably 0.001 to 30% by mass, more preferably 0.01 to 10% by mass, and most preferably 0.05 to 5% by mass. When this content is less than 0.001% by mass, it is not possible to obtain a hair improving effect such as water retention. On the other hand, even if it exceeds 30% by mass, no further improvement in hair improvement effect is observed. In addition, the solvent may become saturated and precipitate.

  Component (B) is, as described above, hydroxymethoxybenzophenonesulfonic acid having a sulfonic acid group, dihydroxydimethoxybenzophenone disulfonic acid, pantethein-S-sulfonic acid, aminoethylsulfonic acid (taurine), guaiazulenesulfonic acid, paraphenolsulfonic acid And at least one component selected from the salts thereof. Among these components, at least one component selected from hydroxymethoxybenzophenone sulfonic acid, paraphenol sulfonic acid and salts thereof is more preferable.

  These components (B) may be blended singly or in combination of two or more. These components (B) exhibit an excellent hair improvement effect such as water retention due to a synergistic effect when used in combination with the component (A). That is, pyrrolidonecarboxylic acid or a salt thereof cleaves hydrogen bonds in protein molecules in the hair, and the sulfonic acid group of the component (B) binds between the cleaved hydrogen bonds, so that the hair has water retention and the like. Improvement effect is obtained.

  The content of the component (B) in the hair treatment agent is preferably 0.001 to 30% by mass, more preferably 0.01 to 10% by mass, and most preferably 0.05 to 5% by mass. When the content is less than 0.001% by mass, hair improvement such as water retention due to a synergistic effect with the component (A) cannot be obtained. On the other hand, when it exceeds 30 mass%, the improvement of the hair improvement effect beyond that is not recognized. In addition, the solvent may become saturated and precipitate.

In the hair treatment agent, an oily component, a hydrocarbon, a surfactant, a pH adjuster, and the like can be blended as other components.
The oil component is preferably blended from the viewpoint of imparting moisture to the hair. Examples of the oil component include polyhydric alcohols, fats and oils, waxes, higher alcohols, higher fatty acids, alkyl glyceryl ethers, esters, silicones, and the like.

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

  Oils include olive oil, rosehip oil, camellia oil, shea fat, macadamia nut oil, almond oil, tea seed oil, sasanqua oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, beef fat, cocoa butter, corn oil , Peanut oil, rapeseed oil, rice bran oil, rice germ oil, wheat germ oil, pearl barley oil, grape seed oil, avocado oil, carrot oil, macadamia nut oil, castor oil, linseed oil, palm oil, mink oil, egg yolk oil, etc. Is mentioned. Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin.

  Higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl Alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, etc. are mentioned. Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolin fatty acid. It is done.

  Examples of the alkyl glyceryl ether include batyl alcohol (monostearyl glyceryl ether), chimyl alcohol (monocetyl glyceryl ether), selachyl alcohol (monooleyl glyceryl ether), and isostearyl glyceryl ether.

  Esters include diisopropyl adipate, diisobutyl adipate, dioctyl adipate, 2-hexyldecyl adipate, diisostearyl adipate, isopropyl myristate, cetyl octanoate, cetyl isooctanoate, isononyl isononanoate, isodecyl isononanoate , Isotridecyl isononanoate, diisopropyl sebacate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, stearyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, triisodecyl myristate, myristic acid Isostearyl, 2-ethylhexyl palmitate, octyldodecyl ricinoleate, fatty acid (C10-30) (choleste Lanylyl), lauryl lactate, cetyl lactate, myristyl lactate, octyldodecyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid Examples thereof include esters, N-alkyl glycol monoisostearate, cetyl caprate, glyceryl tricaprylate, neopentyl glycol dicaprate, diisostearyl malate, and lanolin derivatives.

  Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether-modified silicone, highly-polymerized silicone having an average polymerization degree of 650 to 10,000, amino-modified silicone, and betaine-modified silicone. , Alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, fluorine-modified silicone and the like. These oil components may be blended alone or in combination of two or more.

  Examples of the hydrocarbon include α-olefin oligomer, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, squalane, polybutene, paraffin, polyethylene powder, microcrystalline wax, petrolatum and the like.

Examples of the surfactant include nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants.
Specific examples of the nonionic surfactant include polyoxyethylene (hereinafter referred to as POE) alkyl ethers, POE alkylphenyl ethers, POE / polyoxypropylene alkyl ethers, POE sorbitan fatty acid esters, POE propylene glycol fatty acid. Examples thereof include esters and aliphatic alkanolamides.

  Cationic surfactants include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, stearyl trimethyl ammonium saccharin. And cetyltrimethylammonium saccharin.

  Examples of anionic surfactants include alkyl sulfates such as sodium lauryl sulfate, POE alkyl sulfates such as POE lauryl ether sodium sulfate, alkyl sulfate esters such as lauryl sulfate triethanolamine, stearoylmethyl taurine sodium, dodecylbenzenesulfonic acid Examples include triethanolamine, sodium tetradecenesulfonate, POE lauryl ether phosphate and salts thereof, N-lauroyl glutamates, and N-lauroylmethyl-β-alanine salts.

  Examples of amphoteric surfactants include 2-undecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine sodium, cocoamidopropyl betaine, lauryldimethylaminoacetic acid betaine.

  Examples of the pH adjuster include citric acid, lactic acid, 2-amino-2-methyl-1-propanol and the like. In addition, the hair treatment agent is mixed with water as a solvent or dispersion medium for each component described above, and the concentration of each component is adjusted. The pH of the hair treatment agent is preferably 1.5-12. In addition, when using a hair treatment agent as a pre-dyeing agent and / or a post-dyeing agent, the pH is increased in the case of a pre-dyeing agent because an alkaline treatment is involved in the hair-dyeing treatment. In the case of a treating agent, a lower pH is preferable.

  Furthermore, as other components, water-soluble polymers such as carboxyvinyl polymer and cationized polymer, preservatives such as methylparaben and phenoxyethanol, chelating agents, fragrances, polypeptides, ceramides, vitamins and the like can be blended.

  Polypeptides include hydrolysates obtained by hydrolyzing proteins such as collagen, keratin, elastin, fibroin, conchiolin, soy protein, casein, and gelatin with acids, alkalis, enzymes, etc., and cation-denatured proteins obtained by quaternizing these. Can be mentioned.

  The hair treatment agent can be in the form of a liquid, mist, gel, foam, cream or the like. This hair treatment agent may be applied to hair care agents such as shampoos, rinses and treatments. This hair treatment agent may be used after being applied to the hair and washed off with water or warm water, or the treatment agent adhering to the hair may be used without being washed away with water or warm water.

The effects exhibited by the first embodiment will be described below.
(1) The hair treatment agent of the first embodiment is at least one component selected from pyrrolidone carboxylic acid and salts thereof as component (A), hydroxymethoxybenzophenone sulfonic acid, dihydroxydimethoxybenzophenone disulfonic acid as component (B), It contains at least one component selected from pantethein-S-sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, paraphenolsulfonic acid and salts thereof as an active ingredient. Pyrrolidonecarboxylic acid or a salt thereof cuts hydrogen bonds in protein molecules in the hair, and the sulfonic acid group of the component (B) binds between the broken hydrogen bonds, thereby improving hair retention such as water retention. Can be improved. Moreover, it is estimated that the binding state of the component (A) and the component (B) with respect to the hair is stable, and the durability of the hair improvement effect such as water retention is good.

  (2) By using at least one component selected from hydroxymethoxybenzophenone sulfonic acid, paraphenol sulfonic acid and salts thereof as the component (B), a particularly excellent hair improvement effect such as water retention can be obtained.

(Second Embodiment)
Hereinafter, a second embodiment in which the hair treatment agent of the present invention is applied to a hair modifying agent such as a permanent wave treatment agent, a curly hair straightening agent and a comb hair straightening agent will be described.

  The hair modifier in the second embodiment can be applied with the same composition as the hair treatment agent of the first embodiment described above. The hair modifying agent can be made into a liquid, mist, gel, foam, cream or other dosage form. This hair modifying agent can be applied to straightening straight hair by correcting comb hair, straightening straight hair by straightening curly hair, or correcting straight hair to make it wavy. This hair modifying agent may be used after being applied to hair having comb hair or the like, and may be used after washing with water or warm water, or without being washed with water or warm water. Moreover, you may use a heating process together using a hair iron.

The effect exhibited by the above second embodiment will be described below.
(1) The hair modifying agent of the second embodiment includes (A) at least one component selected from pyrrolidone carboxylic acid and salts thereof as component (A), and hydroxymethoxybenzophenone sulfonic acid and dihydroxydimethoxybenzophenone disulfonic acid as component (B). And at least one component selected from pantethein-S-sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, paraphenolsulfonic acid and salts thereof as an active ingredient. Pyrrolidonecarboxylic acid or a salt thereof cuts hydrogen bonds in protein molecules in the hair, and the sulfonic acid group of the component (B) binds between the broken hydrogen bonds, thereby improving hair retention such as water retention. At the same time, a hair straightening effect can be obtained.

  (2) A particularly excellent hair straightening effect can be obtained by using at least one selected from pantethein-S-sulfonic acid, paraphenolsulfonic acid and salts thereof as the component (B).

(Third embodiment)
Hereinafter, a third embodiment in which the hair treatment agent of the present invention is embodied as a hair dye treatment agent will be described.

Examples of the hair dyeing agent in the third embodiment include an oxidative hair dyeing agent in which an oxidative dye is blended and a direct hair dyeing agent in which a direct dye is blended. First, the oxidative hair dye treatment agent will be described.
The oxidative hair dye treatment agent is a first oxidative hair dye as the first agent (hereinafter referred to as first hair dye) and a second oxidative hair dye as the second agent (hereinafter referred to as second hair dye). It is composed of. The first hair dye contains an alkali agent, a dye, and the like. The second dyeing agent contains an oxidizing agent and the like. At least one component selected from (A) component pyrrolidone carboxylic acid and salts thereof and (B) component hydroxymethoxybenzophenonesulfonic acid, dihydroxydimethoxybenzophenone disulfonic acid, pantethein-S-sulfonic acid, aminoethylsulfonic acid, At least one component selected from guaiazulene sulfonic acid, paraphenol sulfonic acid and salts thereof may be blended in either the first dyeing agent or the second dyeing agent. Moreover, you may comprise so that (A) component and (B) component may be added to the liquid mixture with which the hair dye 1st agent and the hair dye 2nd agent were mixed.

First, the hair dye second agent will be described.
The oxidant is blended to decolorize melanin contained in the hair and oxidize an oxidative dye intermediate or the like as a dye blended in the first hair coloring agent to develop a color. Examples of the oxidizing agent include potassium bromate, sodium bromate, sodium perborate and hydrogen peroxide. The blending amount is preferably 0.1 to 15.0% by mass, based on 100% by mass of the second dyeing agent.

Next, the hair dye 1st agent is demonstrated.
The first agent for dyeing contains an alkali agent, a dye, and other components. The alkaline agent is blended in order to promote the action of the oxidizing agent and to improve the dye permeability to the hair by swelling the hair and to improve the dyeability. Specific examples of the alkali agent include ammonia, alkanolamine, ammonium salt, organic amines (2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkali (sodium hydroxide, potassium hydroxide, Sodium carbonate, potassium carbonate, etc.), basic amino acids (arginine, lysine, etc.) and their salts.

  These alkaline agents may be blended singly or in combination of two or more. The blending amount of the alkaline agent is preferably set to an amount such that the pH of the hair dye first agent is in the range of 8-12. If the pH of the first dyeing agent is less than 8, the action of hydrogen peroxide may not be sufficiently promoted when the first dyeing agent is mixed with the second dyeing agent. On the other hand, when the pH exceeds 12, problems such as damage to the hair tend to occur when the hair dye treatment agent is applied to the hair.

  Specific examples of the dye contained in the first hair coloring agent include oxidation dye intermediates, direct dyes, resorcin, pyrogallol, catechol, m-aminophenol, m-phenylenediamine, 2,4-diaminophenol, 1,2 , 4-benzenetriol, toluene-3,4-diamine, toluene-2,4-diamine, hydroquinone, α-naphthol, 2,6-diaminopyridine, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, paramethyl Aminophenol, 2,4-diaminophenoxyethanol, gallic acid, tannic acid, ethyl gallate, methyl gallate, propyl gallate, pentaploid, 5- (2-hydroxyethylamino) -2-methylphenol and salts thereof Can be mentioned.

  The oxidation dye intermediate dyes hair by being oxidized by an oxidation agent such as hydrogen peroxide contained in the second dyeing agent. Specific examples of the oxidation dye intermediate include phenylenediamines (excluding m-phenylenediamine), aminophenols (excluding m-aminophenol and 2,4-diaminophenol), toluylenediamine. , Diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines, salts thereof and the like. Examples of the salt include hydrochloride, sulfate, acetate and the like.

  Among oxidative dye intermediates, p-phenylenediamine, p-toluylenediamine, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, N-phenyl-p-phenylenediamine due to strong hair dyeing power 4,4′-diaminodiphenylamine, 2-chloro-p-phenylenediamine, N, N-dimethyl-p-phenylenediamine, p-aminophenol, o-aminophenol, 2,6-dichloroparaphenylenediamine, p- At least one selected from aminophenylsulfamic acid and salts thereof is preferable. These oxidation dye intermediates may be blended alone or in combination of two or more.

  The content of the dye in the first hair dyeing agent is preferably 0.01 to 15.0% by mass. If the content is less than 0.01% by mass, sufficient hair dyeing power cannot be obtained. On the other hand, even if it exceeds 15.0 mass%, it is difficult to obtain a higher hair dyeing power.

Next, the direct hair coloring treatment agent will be described. The direct hair treatment agent is blended with a direct dye, the above-described component (A) and component (B).
Direct dyes are formulated to dye hair. This direct dye is non-reactive and can be colored by itself. Specific examples of direct dyes include nitro dyes, acid dyes, basic dyes (cationic dyes), and disperse dyes.

  The nitro dye is preferably 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, because of its excellent hair dyeing power. Picramic acid, picric acid and their salts, HC Blue No.2, HC Blue No.5, HC Blue No.6, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No .12, HC Blue No.13, HC Orenge No.1, HC Orenge No.2, HC Orenge No.3, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.10 , HC Red No. 11, HC Red No. 13, HC Red No. 14, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 5, HC Yellow No. 6, HC Yellow No. 9, HC Yellow No. 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15 etc. .

  As acid dyes, Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 201, Red No. 202, Red No. 227, Red 230 (1), Red 230 (2), Red 231, Red 232, Red 401, Red 502, Red 503, Red 504, Red 506, Yellow 4 and Yellow 5 Yellow 202 (1), Yellow 202 (2), Yellow 203, Yellow 402, Yellow 403 (1), Yellow 406, Yellow 407, Orange 205, Orange 207 , Daido No. 402, Green No. 3, Green No. 204, Green No. 205, Green No. 401, Green No. 402, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 203, Blue No. 205, Brown 201 and black 401 And the like.

  Basic dyes include Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 47, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Basic Green 1, Basic Green 4, Basic Orange 1, Basic Orange 2, Basic Orange 31, Basic Orange 31, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 51, Basic Red 76, Basic Red 118, Basic Violet 1, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet 11: 1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, Basic Yellow 57, Basic Yellow 87, and the like.

  Disperse dyes include Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet 4, Disperse Violet 15 etc. are mentioned.

  Other direct dyes include 1-amino-4-methylanthraquinone, 1,4-diaminoanthraquinone, and salts thereof, HC Blue No. 4, HC Blue No. 7, HC Blue No. 8, HC Blue No. 14, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orenge No.5, HC Red No.8, HC Red No.9, HC Yellow No.7, HC Yellow No.8, In addition, the direct dyes defined by the “Ministerial Ordinance for Determining Tar Colors that can be Used in Pharmaceuticals” (1960 Notification, Ministry of Health and Welfare) are included. These direct dyes may be blended singly or in combination of two or more.

  The content of the direct dye is preferably 0.01 to 0.3% by mass, more preferably 0.05 to 0.2% by mass, and most preferably 0.1 to 0.2% by mass. If the content of the direct dye is less than 0.01% by mass, sufficient hair coloring power may not be obtained. On the other hand, if it exceeds 0.3% by mass, the dispersibility of the direct dye is lowered and precipitation may occur.

  The acid is preferably blended as a pH adjuster in order to improve the hair dyeing power and dyeing fastness. Specific examples of the acid include inorganic acids and organic acids. Examples of inorganic acids include hydrochloric acid, sulfuric acid, nitric acid, acetic acid, phosphoric acid and the like. Examples of the organic acid include levulinic acid, lactic acid, glycolic acid, and citric acid. Among these acids, it is preferable to contain an organic acid since the effect of improving dyeing fastness is high. The acid content is preferably 0.01 to 20% by mass, more preferably 0.1 to 10% by mass, and most preferably 1.0 to 5.0% by mass. If the content is less than 0.01% by mass, the hair dyeing power and dyeing fastness may not be sufficiently improved. On the other hand, even if it mixes exceeding 20 mass%, the effect which improves the hair dyeing power and dyeing fastness beyond it is hard to be acquired.

The pH of the direct hair treatment agent is appropriately set depending on the type of direct dye used. For example, when an acid dye is used as a direct dye, the pH is preferably adjusted to 1.5 to 5.
The aromatic alcohol is preferably blended in order to improve the penetration of the active ingredients such as the direct dye, the component (A) and the component (B) into the hair. Specific examples of the aromatic alcohol include benzyl alcohol, benzyloxyethanol, phenoxyethanol and the like.

  The content of the aromatic alcohol is preferably 0.1 to 10% by mass, more preferably 0.5 to 10% by mass, and most preferably 1 to 5% by mass. If the content of the aromatic alcohol is less than 0.1% by mass, the penetration of the active ingredient into the hair may not be promoted. On the other hand, even if it exceeds 10% by mass, it is difficult to obtain a further penetration promoting effect.

  Other components that can be blended in the oxidative hair dye treatment agent and the direct hair dye treatment agent include other components such as surfactants, hydrocarbons, oil components, pH adjusters, preservatives and the like exemplified in the first embodiment. Is mentioned.

  The dosage forms of these oxidative hair dye treatment agents and direct hair dye treatment agents are not particularly limited, such as aqueous solutions, dispersions, liquids such as emulsions, emulsions, gels, foams, creams, powders, and the like. In the case of a foam form or the like, the hair dye treatment agent may contain a propellant such as liquefied petroleum gas (LPG).

The effects exhibited by the above third embodiment will be described below.
(1) Since the hair dyeing treatment involves decolorization with an oxidizing agent, swelling of the hair with an alkaline agent, and the like, damage to the hair such as a decrease in moisture is particularly likely to occur. The staining agent of the third embodiment contains the component (A) and the component (B) as active ingredients. Therefore, those damages caused to the hair due to the hair improvement effect such as water retention can be suppressed.

  (2) The dyeing agent of the third embodiment can also improve the hair dyeing effect by dyes such as oxidation dyes and direct dyes, and in particular improve the leveling ability. This is because the penetration of hair, such as oxidation dyes and direct dyes, into the hair is improved with the improvement of the penetration of the above-mentioned components (A) and (B) into the hair. It is.

In addition, the said embodiment can also be changed and actualized as follows.
-The hair applied in 1st Embodiment is not specifically limited. For example, it is applied to hair damaged by treatment with hair modifiers such as permanent wave agents, hair straighteners and hair straighteners using oxidation / reduction actions, hair dyes, depigmenting agents, and decoloring agents. In addition, even when applied to hair damaged by, for example, ultraviolet rays and combs, the effect can be exhibited.

  -In 2nd Embodiment, the hair treatment agent containing the said (A) component and (B) component was used as a hair modifier. However, the component (A) and the component (B) are combined and applied to a permanent wave agent and a hair straightener containing a reducing agent that reductively cleaves the SS bond of hair keratin and an oxidizing agent that oxidatively recombines. May be.

  -In 3rd Embodiment, the said (A) component and (B) component were mix | blended with the oxidative hair dyeing agent and the direct hair dyeing agent. However, you may use the hair treatment agent which mix | blends the said (A) component and (B) component as a pre-dyeing agent and / or a post-dyeing agent. Even in such a configuration, the effect of improving hair such as water retention can be obtained. Moreover, also when the hair processing agent which mix | blends the said (A) component and (B) component is used as a hair dyeing pretreatment agent, the improvement of a hair dyeing effect, especially the improvement of leveling property can also be aimed at.

  Moreover, when the hair treatment agent which mix | blends the said (A) component and (B) component is used as a post-dyeing treatment agent, not only hair damage is suppressed by hair improvement effects, such as water retention, but also hair. The suppleness can also be improved. Hair is easily damaged by an oxidizing agent, an alkaline agent or the like in the hair dyeing treatment. As the active ingredient (A) and the ingredient (B) penetrate well into damaged hair, the suppleness is improved.

  -In 3rd Embodiment, the said (A) component and (B) component were mix | blended and used for the hair dyeing agent. However, it is not limited to these hair dye treatment agents, and may be used in combination with other decoloring agents, decoloring agents and the like. Even with such a configuration, it is possible to suppress hair damage due to the effect of improving hair such as water retention.

  In the third embodiment, the oxidative hair dye treatment agent is configured as a hair dye first agent and a hair dye second agent, and is mixed immediately before use. However, each component constituting the first hair dyeing agent and the second hair dyeing agent may be separated into three or more agents. For example, the hair dyeing agent which consists of the hair dye 1 agent which mix | blends oxidation dye, the hair dye 2 agent which mix | blends an alkaline agent, and the hair dye 3 agent which mix | blends an oxidizing agent is mentioned. Even in such a configuration, the component (A) and the component (B) may be added to any drug, and the component (A) and the component (B) are further configured as separate agents (for example, a hair dyeing fourth agent). May be. Moreover, you may comprise as 1 agent type which mixes and prepares each component which comprises a hair dyeing treatment agent immediately before use.

Next, the embodiment will be described more specifically with reference to examples and comparative examples.
(Examples 1-6 and Comparative Examples 1-6, hair treatment agent)
Each hair treatment agent was prepared according to the formulation shown in Table 1. The resulting mixture was applied to a human black hair bundle. After the hair bundle to which the mixture was applied was allowed to stand for 10 minutes, the hair treatment was completed by washing with water, rinsing with a 2.0% by mass phosphoric acid solution, washing with water and drying. The feel of the hair bundle after this hair treatment was evaluated. In addition, the unit of the numerical value which shows the mixing | blending of each component in Table 1 is the mass%.

<Feel (moisture)>
For the hair treated with the hair treatment agent of each example, when 5 panelists touch by hand, 4 points when the feeling of moisture is very good, 3 points when good, 2 points when bad, and bad Scoring was made in 4 stages with a score of 1. An average score is calculated for the scoring results of five panelists, and when the average score is 3.6 points or more, “Excellent: ◎”, when 2.6 points or more and 3.5 points or less, “Good: ○” In the case of 1.6 points or more and 2.5 points or less, “slightly bad: Δ” and in the case of 1.5 points or less were “bad: ×”, and the evaluation results of moist feeling were obtained. The evaluation results are shown in Table 1.

<Durability of water retention>
For the hair treated with the hair treatment agent of each example, the moisture content (%) in the hair was measured by the Karl Fischer method after being left overnight at 25 ° C. and 50% RH. For the measurement of moisture by the Karl Fischer method, a Karl Fischer moisture meter MKA-510N type and a moisture vaporizer ADP-511 type (manufactured by Kyoto Electronics Co., Ltd.) were used. The results are shown in Table 1.

From the results of Table 1, in Examples 1 to 6, it was confirmed that the moist feeling was excellent. In particular, it was confirmed that the hair treatment agent blended with hydroxymethoxybenzophenone sulfonic acid, pantethein-S-sulfonic acid or paraphenol sulfonic acid has an excellent moist feeling. In contrast, Comparative Example 1 and Comparative Example 2 in which paratoluenesulfonic acid and 1-naphthalenesulfonic acid were blended even with a compound having a sulfonic acid group were evaluated as having a slightly poor moist feeling. In Comparative Example 3 in which arginine and pyrrolidone carboxylic acid were used in combination, good results were not obtained in terms of moisture. In Comparative Examples 4 and 5 in which pyrrolidone carboxylic acid and aminoethyl sulfonic acid were used alone as active ingredients, good results were not obtained. Moreover, in Examples 1-6 from the result of Table 1, it was confirmed that the sustainability of water retention property is excellent. In particular, it was confirmed that the hair treatment agent containing hydroxymethoxybenzophenone sulfonic acid, aminoethyl sulfonic acid or paraphenol sulfonic acid has excellent water retention.

(Examples 7-12 and Comparative Examples 7-12, two-component hair modifier)
The hair treatment agents of Examples 1 to 6 and Comparative Examples 1 to 6 shown in Table 1 were used as hair modifiers of Examples 7 to 12 and Comparative Examples 7 to 12, respectively. Each mixture was applied to a human dark hair bundle at the same site on the same person. After leaving for 10 minutes, washing with water, rinsing with a 2.0% by mass phosphoric acid solution and washing with water, the hair was lightly removed with a towel to complete the hair modification treatment. The hair straightening effect was evaluated for the hair bundle after this hair modification treatment.

<Correction effect>
The length of the hair immediately after the hair modification treatment is measured. Then, after standing for 30 minutes in an environment of 25 ° C. and 50% humidity, the length of the hair is measured again accurately. Hair length immediately after hair modification treatment (mm) —hair length after standing for 30 minutes (mm) = hair change due to comb hair (P). In addition, the more the hair is, the more the hair changes as it becomes dry, the more the hair changes due to the hair, and the more the hair changes due to the hair (P), the higher the correction effect of the hair. It was defined that the greater the hair change (P), the lower the hair straightening effect. When the calculated value (P) is 0.0 ≦ P <0.1, “high correction effect: ◎”, and 0.1 ≦ P <0.25 “high correction effect: ◯”, 0.25 ≦ P <0.45 was set to “Low correction effect: Δ”, and 0.45 ≦ P was set to “No correction effect: x”. The evaluation results are shown in Table 2.

From the results of Table 2, in Examples 7 to 12, it was confirmed that the correction effect was excellent. In particular, it was confirmed that the hair treatment agent containing pantethein-S-sulfonic acid or paraphenolsulfonic acid has an excellent correction effect. On the other hand, even in the case of a compound having a sulfonic acid group, Comparative Example 7 and Comparative Example 8 in which paratoluenesulfonic acid and 1-naphthalenesulfonic acid were blended were evaluated to have a low correction effect. Further, in Comparative Example 9 in which arginine was used in combination with pyrrolidone carboxylic acid, no correction effect was obtained. Further, in Comparative Examples 10 and 11 in which pyrrolidone carboxylic acid and aminoethyl sulfonic acid were used alone as active ingredients, the correction effect was low.

(Examples 13 to 18 and Comparative Examples 13 to 18, two-component oxidative hair dye)
Each oxidative hair dye was prepared according to the formulation shown in Tables 3 and 4. Each hair dye 1 agent shown in Table 3 and the hair dye 2 agent shown in Table 4 are mixed at a mass ratio of 1: 1, and the resulting mixture is applied to a white cloth for dyeing fastness test (conforming to JISL0803), After standing for 30 minutes, the hair dyeing treatment was completed by washing with water, rinsing and drying. The leveling property of the white cloth after this hair dyeing treatment was evaluated. In addition, the unit of the numerical value which shows the mixing | blending of each component in Table 3, 4 is the mass%.

<Uniformity>
For the white cloth treated with the oxidative hair dye of each example, ◎ when the leveling property is improved, ◯ when the leveling property is slightly improved, △ when the level dyeing is slightly uneven, and 1 × when the level dyeing is uneven It was set as the evaluation result of leveling in four steps. The evaluation results are shown in Table 3.

From the results of Table 3, in Examples 13 to 18, it was confirmed that the leveling property was excellent. On the other hand, in Comparative Example 13 and Comparative Example 14 in which p-toluenesulfonic acid having a sulfonic acid group and 1-naphthalenesulfonic acid were blended, the evaluation was that the leveling property was not good. Further, in Comparative Example 15 in which arginine was used in combination with pyrrolidone carboxylic acid, no improvement in leveling property was observed. Further, in Comparative Examples 16 and 17, in which pyrrolidone carboxylic acid and aminoethyl sulfonic acid were used singly as active ingredients, the leveling property was low.

(Example 19 and Comparative Example 19, hair dyeing pretreatment agent)
The hair treatment agent mixed with pyrrolidonecarboxylic acid and aminoethylsulfonic acid shown in Example 4 was used as a pre-dyeing agent. The hair dyeing pretreatment agent was applied to the hair bundle and allowed to stand for 10 minutes, and then washed with water, rinsed and dried to complete the hair dyeing pretreatment. Thereafter, the first dyeing agent shown in Comparative Example 18 and the second dyeing agent shown in Table 4 were mixed at a mass ratio of 1: 1 and dyed by applying to the hair as Example 19. A comparative example 19 was obtained by performing the hair dyeing treatment without performing the treatment with the hair dye pretreatment agent. About the hair after dyeing | staining, the permeability in the hair of an oxidative hair dye was evaluated. The penetrability was evaluated visually using an optical microscope. 1 (a) and 1 (b) show a cross-sectional photograph of the hair when the hair dyeing pretreatment agent is used (Example 19) and a cross-sectional photograph of the hair when the hair dyeing pretreatment agent is not used (Comparative Example 19). Show. In FIG. 1, black dots in the cross section of the hair indicate dyes that have developed color. In Example 19, the penetration of the oxidative dye could be confirmed up to the center of the hair. On the other hand, in Comparative Example 19, the penetration of the oxidative dye could not be confirmed up to the center of the hair.

Cross-sectional photograph of hair that has been dyed. (A) The cross-sectional photograph of the hair at the time of using a hair dyeing pretreatment agent. (B) A cross-sectional photograph of hair when no hair dyeing pretreatment agent is used.

Claims (4)

A hair treatment agent comprising the following component (A) and component (B):
Component (A): At least one component selected from pyrrolidone carboxylic acid and salts thereof.
Component (B): At least one component selected from hydroxymethoxybenzophenone sulfonic acid, dihydroxydimethoxybenzophenone disulfonic acid, pantethein-S-sulfonic acid, aminoethylsulfonic acid, guaiazulenesulfonic acid, paraphenolsulfonic acid and salts thereof.   The hair treatment agent according to claim 1, which is used as a hair modifying agent.   The hair treatment agent according to claim 1, which is used as at least one selected from a hair dye and a pre-dyeing agent.   The hair treatment agent according to claim 1, which is used as a hair dyeing treatment agent.