KR102453228B1 - Oxidative hair dye composition - Google Patents

Abstract

The present invention is an oxidation hair dye composition containing an alkali agent and an oxidizing agent, and contains (A) carbonate, (B) oxidation dye, and (C) at least one sugar alcohol selected from the group of sugar alcohols having 4 or more carbon atoms. The (C) sugar alcohol may be alditol. The oxidation dye (B) is 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethylamino)-2-methylphenol, α - At least one coupler selected from naphthol and salts thereof may be included.

Description

Oxidation hair dye composition {OXIDATIVE HAIR DYE COMPOSITION}

The present invention relates to an oxidation hair dye composition comprising a carbonate as an alkali agent.

Generally, a hair dye composition that exhibits an effect by mixing a plurality of drugs is known. As such a hair dye composition, an oxidation hair dye composition comprising, for example, a first agent containing an alkali agent and an oxidation dye, and a second agent containing an oxidizing agent, for example, hydrogen peroxide is known. The alkali agent promotes the action of the oxidizing agent contained in the second agent, and at the same time swells the hair, thereby improving the permeability of the dye into the hair, thereby improving the hair dyeing power. Conventionally, ammonia and the like have been known as alkalis used in oxidation hair dye compositions. However, there is a problem that ammonia accompanies an irritating odor when the compounding amount is increased.

Conventionally, for example, oxidation hair dye compositions disclosed in Patent Documents 1 to 3 are known. Patent Documents 1 to 3, by using ammonia and carbonate together as an alkali agent, reduce the amount of ammonia to be blended compared to the prior art and improve hair dyeing power.

Japanese Laid-Open Patent Publication No. 2001-206825 Japanese Laid-Open Patent Publication No. 2001-328926 Japanese Laid-Open Patent Publication No. 2008-127343

However, the oxidation hair dye compositions disclosed in Patent Documents 1 to 3 have a problem in that color, ie, saturation and intensity of color may be reduced due to the carbonate compounded as an alkali agent. On the other hand, when simply reducing the compounding amount of carbonate and increasing the compounding quantity of ammonia, there is a problem that irritation cannot be reduced.

Accordingly, it is an object of the present invention to provide an oxidation hair dye composition that can improve color while maintaining hypoallergenic properties in an oxidation hair dye composition containing carbonate as an alkali agent.

The present invention is based on the discovery that color can be improved while maintaining hypoallergenicity by using a specific sugar alcohol in an oxidation hair dye composition containing carbonate as an alkali agent.

In one aspect of the present invention for achieving the above object, as an oxidation hair dye composition comprising an alkali agent and an oxidizing agent, (A) carbonate (B) oxidation dye, and (C) at least one selected from the group of sugar alcohols having 4 or more carbon atoms It is characterized in that it contains a sugar alcohol of The (C) sugar alcohol may be alditol. The oxidation dye (B) is 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethylamino)-2-methylphenol, α - At least one coupler selected from naphthol and salts thereof may be included.

The oxidation dye (B) may include at least one coupler selected from 2,4-diaminophenoxyethanol hydrochloric acid, 5-amino-o-cresol, and salts thereof. 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethyl) based on the total content of the oxidation dye (B) in the oxidation hair dye composition The mass ratio of the total content of at least one coupler selected from amino)-2-methylphenol, α-naphthol, and salts thereof may be 0.01 to 0.9.

According to the present invention, color can be improved while maintaining hypoallergenicity.

Hereinafter, one embodiment in which the present invention is embodied in a two-agent type oxidation hair dye composition will be described.

The two-agent type oxidation hair dye composition is composed of, for example, a first agent containing at least (A) a carbonate and (B) an oxidation dye, and a second agent containing at least an oxidizing agent. This oxidation hair dye composition is used for hair dye treatment after a mixture of the first agent and the second agent is prepared.

<Part 1>

The first agent contains, in addition to the alkali agent and the dye, for example (C) a sugar alcohol. (A) Carbonate is mix|blended from a viewpoint of brightness improvement. (A) The carbonate is not particularly limited, and known carbonates, for example, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, lithium carbonate, calcium carbonate, magnesium carbonate, barium carbonate, guanidine carbonate, guanidine hydrogen carbonate, ammonium carbonate and ammonium bicarbonate. Among these carbonates, only 1 type may be contained individually, and 2 or more types may be combined and contained.

The lower limit of the content of (A) carbonate in the mixing of the first agent and the second agent is appropriately set, but is preferably 0.01 mass % or more, more preferably 0.1 mass % or more, still more preferably 0.5 mass % or more. . (A) When content of carbonate is 0.01 mass % or more, especially brightness can be improved more. Moreover, when ammonia is used together as an alkali agent, the reduction effect of irritation|stimulation derived from ammonia can also be anticipated by reducing the usage-amount of ammonia.

Although the upper limit of the content of (A) carbonate in the mixture of the first agent and the second agent is appropriately set, it is preferably 20 mass% or less, more preferably 15 mass% or less, still more preferably 10 mass% or less. (A) When content of carbonate is 20 mass % or less, especially when using a solubilizer, the solubility with respect to a solubilizer can be improved.

As an alkali agent, alkali agents other than (A) carbonate can be used together. (A) As an alkali agent other than carbonate, ammonia, an alkanolamine, a silicate, a metasilicate, sulfate, a chloride, a phosphate, an organic amine, and a basic amino acid are mentioned, for example. Specific examples of the alkanolamine include monoethanolamine and triethanolamine. Specific examples of the silicate include sodium silicate and potassium silicate. Specific examples of metasilicate include sodium metasilicate and potassium metasilicate. As a specific example of a sulfate, ammonium sulfate is mentioned, for example. Specific examples of the chloride include, for example, ammonium chloride. Specific examples of the phosphate include primary ammonium phosphate and secondary ammonium phosphate. Specific examples of the organic amine include 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol and guanidine. Specific examples of the basic amino acid include arginine and lysine. Among these alkali agents, only 1 type may be contained individually, and 2 or more types may be combined and contained may be contained. Among them, ammonia and ammonium salts are preferably used from the viewpoint of improving hair dyeing power.

In addition, the mass ratio of the content of (A) carbonate to the content of the total alkali agent in the mixture of the first agent and the second agent is not particularly limited, but from the viewpoint of exhibiting the effect of reducing irritation when carbonate is used, it is preferably 0.4 or more, more preferably 0.5 or more, still more preferably 0.6 or more. That is, the ratio of the content of the alkali agent other than the (A) carbonate in the total alkali agent is preferably 60 mass% or less, more preferably 50 mass% or less, still more preferably 40 mass% or less. The lower limit of the content of the alkali agent other than (A) carbonate is not particularly limited, but is preferably 5 mass% or more, more preferably 10 mass% or more from the viewpoint of improving the brightness.

The alkali agent is preferably blended in an amount such that the pH of the oxidation hair dye composition at the time of use is in the range of 7 to 12 as a mixture of the first agent and the second agent. By setting the pH of the mixture to 7 or more, the action of the oxidizing agent contained in the second agent can be further accelerated. By setting the pH of the mixture to 12 or less, hair damage can be further suppressed.

(B) Oxidation dye is a compound capable of developing color due to oxidative polymerization by an oxidizing agent contained in the second agent, and is classified into a dye intermediate and a coupler, and the oxidation dye preferably contains a dye intermediate and a coupler.

As the dye intermediate, for example, p-phenylenediamine, toluene-2,5-diamine (tolylenediamine), N-phenyl-p-phenylenediamine, 4,4'-diaminodiphenylamine, p- Aminophenol, o-aminophenol, p-methylaminophenol, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p -phenylenediamine, 4-amino-m-cresol, 2-amino-4-hydroxyethylaminoanisole, 2,4-diaminophenol, and their salts are mentioned. Among the specific examples of these dye intermediates, only 1 type may be contained individually, and 2 or more types may be combined and contained.

The coupler develops color by bonding with the dye intermediate. Examples of the coupler include resorcin, 5-amino-o-cresol, m-aminophenol, α-naphthol, 5-(2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2 ,4-diaminophenoxyethanol, toluene-3,4-diamine, 2,6-diaminopyridine, diphenylamine, N,N-diethyl-m-aminophenol, phenylmethylpyrazolone, 1,5- dihydroxynaphthalene and salts thereof. Moreover, as 2, 4- diamino phenoxy ethanol, hydrochloric acid 2, 4- diamino phenoxy ethanol is mentioned, for example. Among the specific examples of these couplers, only 1 type may be contained independently, and 2 or more types may be combined and contained. (B) Since the oxidation dye can variously change the color tone of hair, it is preferably composed of at least one selected from the above specific examples of the dye intermediate and at least one selected from the above specific examples of the coupler. The first agent is a dye other than the oxidation dye, and for example, may appropriately contain an oxidation dye described in "Standards for Quasi-Drug Raw Materials" (published in June 2006, Yaksa Ilbo).

The lower limit of the content of the oxidation dye (B) in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01 mass% or more, more preferably 0.1 mass% or more, still more preferably 0.5 mass% or more. . (B) When content of an oxidation dye is 0.01 mass % or more, especially color color can be improved more.

The upper limit of the content of the oxidation dye (B) in the mixture of the first agent and the second agent is appropriately set, but is preferably 10 mass% or less, more preferably 7 mass% or less, still more preferably 5 mass% or less. . (B) When the content of the oxidation dye is 10% by mass or less, the solubility in the solubilizing agent can be improved, particularly when a solubilizing agent is used.

Among the specific examples of the coupler described above, from the viewpoint of color improvement, 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethylamino)- At least one coupler selected from 2-methylphenol and ?-naphthol (hereinafter referred to as "coupler-P") is preferred. Further, at least one selected from the group consisting of 2,4-diaminophenoxyethanol hydrochloric acid, 5-amino-o-cresol, and salts thereof from the viewpoint of obtaining a vivid color tone is more preferable.

The lower limit of the content of coupler-P in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.01 mass% or more. When content of coupler-P is 0.01 mass % or more, especially a color color can be improved more.

Although the upper limit of the coupler-P content in the mixture of the first agent and the second agent is appropriately set, it is preferably 10 mass% or less, more preferably 7 mass% or less, still more preferably 5 mass% or less. When content of coupler-P is 10 mass % or more, especially when using a solubilizer, the solubility with respect to a solubilizer can be improved.

(B) When using coupler-P as the oxidation dye, the lower limit of the mass ratio of the total content of coupler-P to the total content of the (B) oxidation dye in the mixture of the first agent and the second agent is appropriately set, Preferably it is 0.01 or more, More preferably, it is 0.1 or more. When this mass ratio is 0.01 or more, especially a color color can be improved more.

The upper limit of the mass ratio of the total content of coupler-P to the total content of the oxidation dye (B) in the mixture of the first agent and the second agent is appropriately set, but is preferably 0.9 or less, more preferably 0.8 or less. When this mass ratio is 0.9 or less, especially a color color can be improved more.

(C) Sugar alcohol is blended to improve the color after hair dye treatment. (C) The sugar alcohol is C4 or more, Preferably a sugar alcohol of 4-8 is used. When carbon number is 4 or more, especially a color color can be improved. (C) Specific examples of the sugar alcohol include a derivative of a sugar produced by reduction of the carbonyl group of aldose and ketose, cyclitol, or maltitol. Specific examples of the sugar derivative (alditol) produced by reducing the carbonyl group of aldose include, for example, erythritol (C4), threitol (C4), xylitol (C5), arabinitol (C5), sorbitol (C6). ), mannitol (C6), galactitol (C6) bolemitol (C7) and D-erythro-D-galacto-octitol (C8). Symbols C4 to C8 in parentheses indicate the number of carbon atoms. Among these (C) sugar alcohols, only 1 type may be contained individually, and 2 or more types may be combined and contained may be contained. Among these, alditol is preferable and xylitol is more preferable from a viewpoint of being excellent in the improvement effect of color.

Although the lower limit of the content of the sugar alcohol (C) in the mixture of the first agent and the second agent is appropriately set, it is preferably 0.01 mass% or more, more preferably 0.1 mass% or more, still more preferably 0.5 mass% or more. . (C) Color color can be improved especially as content of sugar alcohol is 0.01 mass % or more.

Although the upper limit of the content of the sugar alcohol (C) in the mixture of the first agent and the second agent is appropriately set, it is preferably 10 mass% or less, more preferably 7 mass% or less, still more preferably 5 mass% or less. . (C) When content of sugar alcohol is 10 mass % or less, especially when using a solubilizer, the solubility with respect to a solubilizer can be improved.

If necessary, the first agent is a component other than the above-mentioned components, for example, a solubilizer, a water-soluble polymer compound, an oily component, a polyhydric alcohol other than the above, a surfactant, a sugar other than the above, a preservative, a stabilizer, a pH other than the above It may further contain modifiers, plant extracts, herbal extracts, vitamins, fragrances, antioxidants, infrared absorbers, chelating agents and oxidizing agents.

The solubilizer is formulated to make the first agent in a liquid state. Examples of solubilizing agents that can be used include, for example, water and organic solvents. Specific examples of the organic solvent include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, Cinnamon alcohol, anis alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, phenoxyethanol, phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate and alkyl ethers. Among these solubilizers, only 1 type may be contained independently, and 2 or more types may be combined and contained. Of these, water is preferably used because of its excellent ability to dissolve other components in the first agent. When water is used as the solvent, the content of water (content at the time of use) in the mixture of the first agent and the second agent is preferably 50 mass% or more, more preferably 60 mass% or more.

The water-soluble high molecular compound imparts an appropriate viscosity to the mixture. Specific examples of the water-soluble polymer compound include natural polymers, semi-synthetic polymers, synthetic polymers, and inorganic polymers. Natural water-soluble high molecular compounds include, for example, guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, gum tragacanth, pectin, mannan, xanthan gum, dextran, succinoglucan, cardoran. , hyaluronic acid, gelatin, casein, albumin and collagen.

Examples of the semi-synthetic water-soluble high molecular compound include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylcellulose, dimethyldiarylammonium chloride, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose , cationized cellulose, cationized guar gum, starch phosphate ester, alginic acid propylene glycol ester, and alginate.

Examples of the synthetic water-soluble high molecular compound include polyvinyl alcohol, polyvinylpyrrolidone, polyvinylmethyl ether, carboxyvinyl polymer, sodium polyacrylate, polyacrylamide, polyethylene oxide, ethylene oxide/propylene oxide block copolymer, acrylic acid /Alkyl acrylate copolymer and polydimethylmethylene piperidinium chloride are mentioned. Moreover, as a synthetic polymer, at least 1 selected from, for example, half-ester of itaconic acid and polyoxyethylene alkyl ether, or ester of methacrylic acid and polyoxyethylene alkyl ether, acrylic acid, methacrylic acid, and these alkyl esters. and a copolymer composed of two monomers. Among these water-soluble high molecular compounds, only 1 type may be contained individually, and 2 or more types may be combined and contained may be contained.

Oily ingredients give the hair a feeling of moisture. Therefore, the first agent contains an oily component within a range that does not impair the effects of the present invention. Examples of the oily component include oils and fats, waxes, higher alcohols, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, esters and silicones.

Examples of oils and fats include lanolin, olive oil, camellia oil, shea fat, almond oil, saffron oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, malt oil, grape seed oil, avocado oil, macadamia oil. nut oil, castor oil, palm oil and evening primrose oil. Examples of the wax include beeswax, candelilla wax, carnauba wax, jojoba oil and lanolin. Examples of the higher alcohol include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, arachyl alcohol, behenyl alcohol, and 2-octyl alcohol. and dodecanol, lauryl alcohol, myristyl alcohol, decyltetradecanol and lanolin alcohol.

Examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalene, polybutene, polyethylene, microcrystalline wax and petrolatum. Examples of the higher fatty acids 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, serachyl alcohol and isostearyl glyceryl ether.

As the ester, for example, diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononate, octyldodecyl myristate, isopropyl palmitate, 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 di-2-ethylhexanoate glycol, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, cetyl capric acid, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, and cetyl 2-ethylhexanoate.

As the silicone, for example, dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, high polymerization silicone, polyether-modified silicone (for example, ( PEG/PPG/butylene/dimethicone) copolymer), amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone. Among these oily components, it may be contained individually by 1 type, and may be contained in combination of 2 or more type.

Examples of the polyhydric alcohol include glycol and glycerin. Examples of glycol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Glycerin includes, for example, glycerin, diglycerin and polyglycerin. You may contain individually by 1 type among these polyhydric alcohols, and you may contain it in combination of 2 or more type.

As the surfactant, when the oxidation hair dye composition is used as an emulsifier or a component for solubilizing each component, it is emulsified or solubilized to adjust the viscosity or improve the viscosity stability. Examples of the surfactant include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants. Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkyl ether sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkanesulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl. ether carboxylate, α-sulfone fatty acid salt, N-acylamino acid type surfactant, phosphoric acid mono or diester type surfactant, sulfosuccinate ester, and derivatives thereof. As a counterion of the anionic group of these surfactant, a sodium ion, a potassium ion, and a triethanolamine are mentioned, for example. More specifically, the ether sulfate ester salt includes, for example, polyoxyethylene (hereinafter referred to as 'POE') sodium lauryl ether sulfate. Examples of the alkyl sulfate include sodium lauryl sulfate and sodium cetyl sulfate. As a derivative of an alkyl sulfate, POE sodium lauryl sulfate is mentioned, for example. As sulfosuccinic acid ester, disodium sulfosuccinate lauryl is mentioned, for example.

Cationic surfactants include, for example, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, alkyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, ethyl lanolin sulfate fatty acid aminopropylethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, methacryloyloxyethyltrimethylammonium chloride, and behenyltrimethylammonium methylsulfate are mentioned.

Specific examples of the amphoteric surfactant include, for example, cocobetaine, lauramidopropylbetaine, cocamidopropylbetaine, sodium lauroanhoacetic acid, sodium cocoanhoacetic acid, palm oil fatty acid amidepropylbetaine and laurylbetaine. (Lauryl dimethyl amino acetate betaine) is mentioned.

Specific examples of the nonionic surfactant include an ether type nonionic surfactant, an ester type nonionic surfactant, and an alkyl glucoside. Specific examples of the ether type nonionic surfactant include, for example, POE cetyl ether (cetes), POE stearyl ether (steares), POE behenyl ether, POE oleyl ether (Ores), and POE lauryl ether. (laureth), POE octyldodecyl ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, and POE octylphenyl.

Specific examples of the ester type nonionic surfactant include, for example, monooleate POE sorbitan, monostearate POE sorbitan, monopalmitate POE sorbitan, monolaurate POE sorbitan, trioleate POE sorbitan, monostearate POE, for example. Glycerin, POE glycerin monomyristate, tetraoleate POE sorbit, hexastearate POE sorbit, monolaurate POE sorbit, POE sorbit beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate , lipophilic glycerin monooleate, lipophilic glycerin monostearate, self-emulsifying glycerin monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, monolauric oxygen lebitan, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, and decaglyceryl monomyristate.

The alkyl glucoside includes, for example, an alkyl (8 to 16 carbon atoms) glucoside, POE methyl glucoside, and POE dioleate methyl glucoside. Among the specific examples of these surfactants, only 1 type may be contained individually, and 2 or more types may be combined and contained may be contained.

Examples of the sugar include monosaccharides such as glucose and galactose, and disaccharides such as maltose, sucrose, fructose and trehalose. Preservatives include, for example, parabens. Stabilizers include, for example, phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid and tannic acid. Examples of the pH adjuster include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucronic acid, and benzoic acid. Antioxidants include, for example, ascorbic acid and sulfites. Examples of the chelating agent include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetic acid, tetrasodium edetic acid, diethylenetriaminepentaacetic acid and salts thereof, ethylenediaminehydroxyethyltriacetic acid and salts thereof, And hydroxyethanediphosphonic acid (HEDP) and its salts are mentioned.

The formulation of the first agent is not particularly limited, and specific examples thereof include, for example, liquid, gel, foam, cream, and solid. As a liquid phase, aqueous solution, a dispersion liquid, and an emulsion liquid are mentioned, for example.

<Second Part>

The second agent may contain, in addition to the oxidizing agent, a solubilizing agent. The oxidizing agent further improves the discoloration of melanin contained in the hair. Specific examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, sodium persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, and a hydrogen peroxide adduct of barium peroxide, calcium peroxide, strontium peroxide, sulfate, a hydrogen peroxide adduct of phosphate, and a hydrogen peroxide adduct of pyrophosphate. Among the specific examples of these oxidizing agents, they may be contained individually by 1 type, and may be contained in combination of 2 or more type. Although content of an oxidizing agent in a 2nd agent is set suitably, Preferably it is 0.1 mass % or more, More preferably, it is 2.0 mass % or more, More preferably, it is 3.0 mass % or more. When content of an oxidizing agent is 0.1 mass % or more, the discoloration property of melanin can be improved more. Moreover, content of an oxidizing agent in a 2nd agent becomes like this. Preferably it is 15.0 mass % or less, More preferably, it is 9.0 mass % or less, More preferably, it is 6.0 mass % or less. When content of an oxidizing agent is 15.0 mass % or less, damage to hair, etc. can be suppressed more.

When hydrogen peroxide as an oxidizing agent is blended into the second agent, in order to improve the stability of hydrogen peroxide, the second agent is preferably a stabilizer such as ethylene glycol phenyl ether (phenoxyethanol), hydroxyethanediphosphonic acid and its salts. Examples of the hydroxyethanediphosphonic acid salt include tetrasodium hydroxyethanediphosphonate and disodium hydroxyethanediphosphonate. The second agent is generally contained in the oxidation hair dye composition, and may contain each component that does not inhibit the action of each component described above. For example, the component contained in the above-mentioned first agent may be appropriately contained within a range that does not impair the effects of the present invention.

The formulation of the second agent is not particularly limited, and specific examples thereof include liquid, gel, foam, cream, and solid. As a liquid phase, aqueous solution, a dispersion liquid, and an emulsion liquid are mentioned, for example. When using the oxidation hair dye composition, a mixture is prepared by mixing the first agent and the second agent. The required amount of the mixture is then attached to a comb or brush and applied to the hair.

The oxidation hair dye composition according to the present embodiment has the following advantages.

(1) In the present embodiment, (A) in the oxidation hair dye composition containing carbonate, (C) at least one selected from the group of sugar alcohols having 4 or more carbon atoms was used in combination. Therefore, it is possible to improve color while maintaining hypoallergenicity and brightness.

(2) Preferably (B) as an oxidation dye, 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethylamino)-2 At least one coupler selected from -methylphenol, ?-naphthol, and salts thereof is used. Accordingly, color can be further improved.

The above embodiment can be changed as follows.

- In the above embodiment, as dyes other than the oxidation dyes mentioned above, for example, direct dyes described in "Standards for Quasi-Drug Raw Materials" (published in June 2006, Yaksa Ilbo) may be suitably contained.

- In the above embodiment, the oxidation hair dye composition was composed of a multi-agent type oxidation hair dye composition comprising a first agent containing (A) carbonate and (B) an oxidation dye, and the like, and a second agent containing an oxidizing agent. However, the oxidation hair dye composition is not limited to the two-agent formula, and a part of the components contained in the first agent and the second agent are constituted as separate agents, and may be constituted by a multiple agent formula, for example, a three agent formula or more.

- In the said embodiment, (C) sugar alcohol was mix|blended with the 1st agent. However, (C) the sugar alcohol may be blended into one of the first agent and the second agent.

(Example)

Next, an Example and a comparative example are given and the said embodiment is demonstrated more concretely. However, the present invention is not limited to the configuration described in the Examples section.

A first agent and a second agent of an oxidation hair dye composition containing each component shown in Tables 1A to 1D and Table 2 were prepared. The numerical value in the column indicating each component in Tables 1A to 1D and Table 2 indicates the content of the component in the corresponding column, and the unit is mass%. Then, the oxidation hair dye composition was prepared by mixing the first agent and the second agent in a mass ratio of 1:1. The obtained oxidation hair dye composition was applied to black hair human hair bundles (15 cm, manufactured by Beurex) (hereinafter simply referred to as hair bundles) using a brush, and left at room temperature (25° C.) for 30 minutes. Next, the oxidation hair dye composition adhering to the hair was washed with water, and then shampoo (Vigen Treatment Shampoo manufactured by Hoyu Corporation) was applied twice and rinsed (Vigen Treatment Rinse manufactured by Hoyu Corporation) was applied to the hair once. Then, the hair bundles were dried with warm air, and then left to stand for 1 day. For the hair bundle to which the hair dyeing treatment was performed, brightness and color were evaluated according to the method shown below. In addition, for hair bundles when hair dyeing was performed using the oxidation hair dye compositions of Examples and Comparative Examples, an irritating odor was evaluated in order to evaluate irritation according to the method shown below.

In the table, the notations of (A) to (C) in the “component” column indicate compounds corresponding to each component ((A): carbonate, (B): oxidation dye, (C): sugar alcohol) in the claims of the present application. . On the other hand, the notation of "c" in the "component" column in the table indicates a compound compared to the component (C) described in the claims of the present application.

In addition, coupler-P in the table is 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethylamino)-2-methylphenol, or α-naphthol. Coupler-P in the table indicates couplers other than coupler-Q.

<Irritating Smell>

A panel of 20 people specializing in odor evaluation performed sensory evaluation of hair bundles when hair dyeing was performed using the oxidation hair dye compositions of each example. According to one panel's argument that the smell of ammonia was hardly felt, the irritating odor at the time of use was evaluated. Among the 20 panelists, if there were 17 or more panelists with almost no smell, 'Excellent: 5', for 13 to 16 people, 'Good: 4', for 9 to 12 people, 'Available: 3', for 5 to 8 people 'Somewhat poor: 2', and 'defective: 1' for 4 people or less. The results are shown in Tables 1A to 1D.

<Brightness>

The 10 panelists visually observed the brightness of human hair genus after treatment with the oxidation hair dye composition under standard light, excellent (5 points), good (4 points), possible (3 points), somewhat poor (2 points) and poor It was evaluated in 5 steps of (1 point). The average value is calculated for the evaluation results of each panel, and an average score of 4.6 or higher is 'Excellent: 5', 3.6 or higher and less than 4.6 are 'Good: 4', 2.6 or higher and less than 3.6 are 'Available: 3', 1.6 or more and less than 2.6 points were set as 'somewhat poor: 2', and 1 or more and less than 1.6 points were set as 'defective: 1', and evaluation results were given. The results are shown in Tables 1A to 1D.

<Color>

For color, saturation and intensity of color were evaluated as a whole. A panel of 10 people observed the color of human hair genus after treatment with the oxidation hair dye composition with the naked eye under standard light, and showed excellent (5 points), good (4 points), possible (3 points), somewhat poor (2 points) and poor. It was evaluated in 5 steps of (1 point). The average value is calculated for the evaluation results of each panel, and an average score of 4.6 or higher is 'Excellent: 5', 3.6 or higher and less than 4.6 are 'Good: 4', 2.6 or higher and less than 3.6 are 'Available: 3', 1.6 or more and less than 2.6 points were set as 'somewhat poor: 2', and 1 or more and less than 1.6 points were set as 'defective: 1', and evaluation results were given. The results are shown in Tables 1A to 1D.

[Table 1A]

[Table 1B]

[Table 1C]

[Table 1D]

[Table 2]

As shown in Tables 1A to 1D, it was found that the oxidation hair dye composition according to each Example had high evaluation of irritation, brightness, and color for each comparative example. Moreover, from the result of Examples 1-4, the difference in the effect by the difference in carbon number of sugar alcohol and the difference in isomer was not seen. Mannitol is an isomer of sorbitol.

As shown in Table 1, in Comparative Example 1, which does not contain (C) sugar alcohol, it was found that the evaluation of color was low for each Example. (A) In Comparative Example 2 containing no carbonate, it was found that the evaluation of irritation and lightness for each Example was low. In Example 1 (C) Comparative Example 3 containing 1,2-bentanediol as a polyhydric alcohol instead of the sugar alcohol, Comparative Example 4 containing glucose as a monosaccharide, and Comparative Example 5 containing glycerin having 3 carbon atoms, each It turned out that evaluation of the color with respect to an Example was low.

In addition, in the configuration of the first agent of Comparative Example 1 and the second agent of Example 1, when a second agent containing 1% by mass of xylitol as a sugar alcohol was combined and applied, each evaluation as in Example 1 got the result

Also, it is possible to prepare an oxidation hair dye composition containing ammonia as an alkali agent in an amount of 5 to 60 mass% with respect to the total alkali agent. In this case, the brightness after hair dye treatment can be further improved.

Claims (6)

An oxidation hair dye composition comprising an alkali agent and an oxidizing agent, comprising (A) carbonate, (B) oxidation dye, and (C) sugar alcohols having 4 or more carbon atoms, excluding sorbitol and maltitol in an amount of 0.05 mass% or more,
The oxidation dye (B) contains at least one coupler selected from 2,4-diaminophenoxyethanol, 5-amino-o-cresol, and salts thereof, 2,6-diaminopyridine, 5 with or without at least one coupler selected from -(2-hydroxyethylamino)-2-methylphenol, α-naphthol, and salts thereof;
2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2,6-diaminopyridine, 5-(2-hydroxyethyl) based on the total content of the oxidation dye (B) in the oxidation hair dye composition A mass ratio of the total content of amino)-2-methylphenol, α-naphthol, and salts thereof is 0.18 to 0.9.
The oxidation hair dye composition according to claim 1, wherein the (C) sugar alcohol is alditol.
An oxidation hair dye composition comprising an alkali agent and an oxidizing agent, comprising (A) a carbonate, (B) an oxidation dye, and (C) a sugar alcohol having 4 or more carbon atoms in an amount of 0.05 mass% or more;
The (B) oxidation dye,
at least one coupler selected from 5-amino-o-cresol and salts thereof, and at least one coupler selected from α-naphthol and salts thereof;
At least one coupler selected from 2,4-diaminophenoxyethanol and salts thereof and at least one coupler selected from α-naphthol and salts thereof, or
At least one coupler selected from 2,4-diaminophenoxyethanol and salts thereof, and at least one coupler selected from m-aminophenol and salts thereof
Oxidation hair dye composition, characterized in that.
4. The method according to claim 3, wherein the oxidation dye (B) comprises at least one coupler selected from 5-amino-o-cresol and salts thereof, and at least one coupler selected from α-naphthol and salts thereof. do,
An oxidation hair dye composition further comprising at least one coupler selected from 5-(2-hydroxyethylamino)-2-methylphenol and a salt thereof.
The oxidation hair dye composition according to claim 3 or 4, wherein the (C) sugar alcohol is alditol.
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