KR20200107783A - Hair dye composition - Google Patents

Abstract

An object of the present invention is to provide a hair dye composition that dyes the hair vividly, has excellent color retentivity, and has excellent stability over time. Provided is a hair dye composition containing: (A) an oxidation dye; (B) at least one acidic direct dye selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3, and ACID VIOLET 43; (C) at least one antioxidant selected from L-ascorbic acid, L-cysteine, and salts thereof; and (D) an oxidant, wherein the ratio of the blending amount of the component (A) to the blending amount of the component (B) is 0.05 to 50 in terms of mass ratio, the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 to 5 in terms of mass ratio.

Description

Hair dye composition {HAIR DYE COMPOSITION}

The present invention relates to a hair dye composition. More specifically, it contains at least one antioxidant, and an oxidizing agent selected from oxidizing dyes and certain acidic direct dyes, L-ascorbic acid, L-cysteine and salts thereof, and color-retains hair vividly. It is good, and it relates to a hair-dye composition excellent in stability.

Conventionally, as a hair dye, an oxidation hair dye using an oxidizing dye is known, and a second formula composed of a first agent containing an oxidizing dye or an alkali agent and a second agent containing an oxidizing agent such as hydrogen peroxide is widely used.

In such a two-type oxidation hair dye, an oxidizing dye penetrates into the hair and is subjected to oxidation polymerization, whereby the hair is dyed. In addition, at the same time as hair dyeing, the alkali agent contained in the first agent decomposes and decolorizes melanin in the hair by oxygen generated by decomposing the oxidizing agent contained in the second agent, so it is possible to increase the brightness of the hair. Therefore, the oxidized hair dye has a problem in that the hair dyeing effect is high, the color retention is good, and although it is possible to color brightly, it is difficult to express a vivid color tone.

On the other hand, acid dyes using direct acid dyes are also popular. For example, in Patent Literature 1, a hair dyeing agent containing a dyeing aid such as an acidic direct dye or an aromatic alcohol, and an oxidizing agent and adjusting the pH of the mixture of hair dyeing to 7.5 to 11 is reported.

In addition, in Patent Document 2, two kinds of solutions of the first liquid containing an acidic direct dye, an alkali and a polymeric thickener, and a second liquid containing hydrogen peroxide having a pH of 4 or less are mixed, and the pH is not less than 9.0, A hair bleaching and dyeing method in which a composition having a viscosity is applied to the hair has been reported.

These hair dyeing agents can express bright and vivid hues, but the hair dyeing effect and color retention are insufficient.

In addition, in Patent Document 3, a hair-dye composition containing a specific amount of an oxidizing dye intermediate, an acidic direct dye, and an oxidizing agent is reported. In the present composition, it is possible to express a vivid color tone while brightening the hair, but there is a problem that the acidic direct dye is decomposed due to an antioxidant formulated to prevent oxidative polymerization of the oxidizing dye and is not excellent in aging stability.

Japanese Patent Laid-Open Publication No. Hei 3-287521 Japanese Laid-Open Patent Publication No. Hei 8-157345 Japanese Laid-Open Patent Publication No. Hei 11-302138

The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a hair-dye composition that dyes hair vividly, maintains good color, and has excellent aging stability.

The present inventors, as a result of various studies, in the group consisting of (A) oxidizing dyes, (B) ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3 and ACID VIOLET 43 At least one selected acidic direct dye, (C) at least one antioxidant selected from L-ascorbic acid, L-cysteine and salts thereof, and (D) an oxidizing agent, and (B) component Hair-dye composition in which the ratio of the blending amount of the component (A) to the blending amount is 0.05 to 50 by mass ratio, and the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 to 5 by mass ratio It was found that this above object was achieved.

And the present invention is characterized by the following points.

(1) (A) Oxidizing dye, (B) at least one acid selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3 and ACID VIOLET 43 Direct dye, (C) contains at least one antioxidant selected from L-ascorbic acid, L-cysteine, and salts thereof, and the ratio of the blending amount of the component (A) to the blending amount of the component (B) is the mass ratio Is 0.05 to 50, and the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 to 5 in terms of mass ratio, and (D) a second agent containing an oxidizing agent. Hair-dye composition containing.

(2) (A) Oxidizing dye, (B) at least one acid selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3 and ACID VIOLET 43 Direct dye, (C) at least one antioxidant selected from L-ascorbic acid, L-cysteine and salts thereof, and (D) contains an oxidizing agent, and (A) component relative to the blending amount of component (B) A hair-dye composition, characterized in that the ratio of the blending amount of is 0.05 to 50 by mass ratio, and the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 to 5 by mass ratio.

(3) The hair-dye composition according to (1) or (2), further containing (E) an alkali agent.

(4) The blending amount of the component (A) is 0.05 to 2.0 mass%, the blending amount of the component (B) is 0.03 to 1.5 mass%, and the blending amount of the component (C) is 0.002 to 1.0 mass% %, and the content of the component (D) is 0.3 to 6.0 mass%, the hair dye composition according to any one of the above (1) to (3).

(5) The hair-dye composition according to any one of the above (1) to (4), wherein the content of the component (E) is 0.2 to 5.0% by mass with respect to the total amount of the hair-dye composition.

Advantageous Effects of Invention According to the present invention, it is possible to provide a hair-dye composition excellent in color retention, while brightly hair-dying hair while having good aging stability. That is, according to the present invention, the three effects of vividness, color retention, and aging stability can be simultaneously exhibited.

Next, an aspect for carrying out the present invention will be described.

(A) Oxidizing dye (hereinafter sometimes referred to as component (A))

Examples of the oxidizing dye include an oxidizing dye intermediate and a coupler. As an oxidation dye intermediate, for example, p-phenylenediamine, toluene-2,5-diamine, 4,4'-diaminodiphenylamine, p-aminophenol, o-aminophenol, p-methylaminophenol , N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chlor-p-phenylene Phenylamines such as diamine, 4-amino-m-cresol, 2-amino-4-hydroxyethylaminoanisole, and 2,4-diaminophenol, and salts thereof.

Examples of the salt include hydrochloride, sulfate, and acetate. The compounding amount of the oxide dye intermediate may be appropriately set as necessary.

Examples of the coupler include mainly m- diamines, aminophenols, or diphenols, and specifically resorcin, pyrogallol, fluoroglucine, 5-amino-o-cresol, m-aminophenol, 5- (2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2,6-diaminopyridine, Hydroquinone, diphenylamine, 1,5-dihydroxynaphthalene, and salts thereof. The blending amount of the coupler in the oxidation hair dye may be appropriately set as necessary.

(A) component can be used individually by 1 type or in combination of 2 or more types.

The blending amount of the component (A) is preferably 0.05 to 2.0% by mass, more preferably 0.1 to 1.0% by mass, with respect to the total amount of the hair dye composition from the viewpoint of brightness at the time of finishing.

(B) acidic direct dye (hereinafter sometimes referred to as component (B))

The component (B) is at least one acidic direct dye selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3, and ACID VIOLET 43.

These acidic direct dyes exhibit the effect that even long-term storage is not easily decomposed by the antioxidant contained in the hair dye, and is not readily decomposed by the oxidizing agent even when the hair dye is mixed.

The blending amount of the acidic direct dye is preferably 0.03 to 1.5% by mass, and more preferably 0.05 to 1.0% by mass, based on the total amount of the hair dye composition. When the blending amount is 0.03% by mass or more, the dyed hair color becomes clear, and when it is 1.5% by mass or less, the color flow from the hair after dyeing decreases, and there is a tendency that the skin staining decreases.

The component (B) may be used alone or in combination of two or more, and may be blended according to a desired color taste.

The ratio of the blending amount of the component (A) to the blending amount of the component (B) (the blending amount of the component (A) / the blending amount of the component (B)) is preferably 0.05 to 50, more preferably 0.07 to 20 in terms of mass ratio. Do. If it is within the above range, the hair dye color tends to become clear and color retention tends to be good.

(C) L-ascorbic acid, L-cysteine and salts thereof (hereinafter sometimes referred to as component (C))

The component (C) is at least one species selected from L-ascorbic acid, L-cysteine, and salts thereof. Examples of the salts of L-ascorbic acid include sodium salt, potassium salt, calcium salt, and magnesium salt.

Examples of the salts of L-cysteine include hydrochloride, nitrate, and acetate. The component (C) is preferably L-ascorbic acid, L-sodium ascorbate, L-cysteine, and L-cysteine hydrochloride, more preferably L-ascorbic acid and L-cysteine hydrochloride from the viewpoint of the antioxidant effect of the oxidizing dye. desirable.

The blending amount of the component (C) is the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) (the blending amount of the component (C)/the blending amount of the component (A) + the blending amount of the component (B)) Blending amount]) What is necessary is just to be made into 0.01-5 by mass ratio, 0.01-1.5 are more preferable, and 0.01-1.0 are still more preferable.

When the ratio is greater than 0.01, the oxidation color development of the oxidizing dye during long-term storage decreases, and when it is less than 5, the decomposition of the acid dye tends to decrease and stability over time tends to be good.

The component (C) can also be used in combination with other antioxidants. Examples of other antioxidants include sulfites, N-acetylcysteine and salts thereof, cysteamine and salts thereof, thioglycolic acid and salts thereof, thioglycerin and the like.

The blending amount of the component (C) is preferably contained in an amount of 0.002 to 1.0 mass% with respect to the total amount of the hair dye composition.

(D) oxidizing agent (hereinafter sometimes referred to as component (D))

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 bromate, potassium bromate, and the like. .

As the oxidizing agent, hydrogen peroxide is preferable from the viewpoint of color development of an oxidizing dye and prevention of hair damage.

The content of the component (D) is preferably 0.3 to 6.0 mass%, more preferably 0.5 to 4.5 mass%, with respect to the total amount of the hair dye composition from the viewpoint of accelerating the oxidation polymerization of the oxidizing dye during use. Do.

(E) Alkaline agent (hereinafter sometimes referred to as component (E))

As an alkali agent, 1 type or 2 or more types of alkali agents are mentioned.

Although the kind of the alkali agent is not limited, ammonia, alkanolamines, organic amines, basic amino acids, and salts and inorganic alkalis thereof are exemplified.

Examples of the alkanolamines include monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, and triisopropanolamine.

Examples of organic amines include 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, and guanidine.

As basic amino acids, arginine, lysine, etc. are mentioned.

Examples of inorganic alkalis include hydroxides such as sodium hydroxide and potassium hydroxide, 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 carbonate. Carbonates or hydrogen carbonates such as ammonium hydrogen.

Among these, at least one of ammonia, monoethanolamine, and salts thereof effective in improving the brightness of hair is preferable. Further, from the viewpoint of reducing irritation, it is preferable to use a carbonate salt in combination with at least one of ammonia and monoethanolamine.

Examples of such carbonates include sodium carbonate, sodium hydrogen carbonate, ammonium carbonate, and ammonium hydrogen carbonate.

The component (E) is preferably contained so that the pH of the hair dye composition at 25°C is 8.5 to 12, and further, the pH is in the range of 8.8 to 11 from the viewpoint of brightness of the finish, irritation, and damage to the hair. It is more preferable to contain.

Although the content of the component (E) is not particularly limited, it is preferably contained in 0.2 to 5.0 mass%, and more preferably contained in 1.5 to 4.0 mass% with respect to the total amount of the hair dye composition.

(F) other ingredients

In the hair dyeing agent of the present invention, in addition to the essential components described above, other components can be blended within a range that does not impair the effects of the present invention.

Examples of such other components include nitro dyes, emulsions, surfactants, silicones, polymer compounds, peptides, amino acid components, solvents, moisturizers, chelating agents, plant extracts, herbal extracts, preservatives, fragrances, pigments, UV absorbers, etc. Can be mentioned.

As a "nitro dye", 4-nitro-o-phenylenediamine, 4-nitro-m-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-3-nitrophenol, 2-amino-4 -Nitrophenol, 2-amino-6-chloro-4-nitrophenol, 2-amino-5-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 3-methylamino-4-nitrophenoxyethanol, 4-amino-3-nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC sulfur 2, HC sulfur 4, HC sulfur 5, HC blue 2, HC red 1, HC red 3, HC red 7, HC Etc. (橙) 1 etc. are mentioned.

As the "oil agent", the type is not particularly limited, and examples thereof include higher alcohols, silicones, fats and oils, hydrocarbons, higher fatty acids, lead, esters, and the like.

As a "higher alcohol", for example, cetyl alcohol (cetanol), 2-hexyldecanol, 2-octyldodecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol, oleyl alcohol, aralkyl Saturated or unsaturated linear higher alcohols such as alcohol, behenyl alcohol, lauryl alcohol, myristyl alcohol, decyl tetradecanol, lanolin alcohol, and hydrogenated lanolin alcohol.

Examples of ``silicones'' include dimethylpolysiloxane, dimethylpolysiloxane having a hydroxy terminal group, methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified Silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone.

Examples of the "fat" include rosehip oil, camellia oil, sunflower oil, avocado oil, rice bran oil, macadamia nut oil, rapeseed oil, olive oil, palm oil, meadow foam oil, almond oil, shea butter, and mink oil.

As ``hydrocarbon'', for example, α-olefin oligomer, hard isoparaffin, hard liquid isoparaffin, liquid isoparaffin, liquid paraffin, squalene, squalane, polybutene, paraffin, polyethylene powder, microcrystalline wax, petrolatum, etc. Can be lifted.

As ``higher fatty acids'', for example, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylene Acids, linoleic acid, ricinoleic acid, and lanolin fatty acids.

As "leads", beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, etc. are mentioned, for example.

As "esters", for example, isopropyl myristic acid, diisopropyl adipate, cetyl octanoate, isopropyl palmitate, butyl stearate, isocetyl isooctanoate, isononyl isononanoate, myristic Butyl acid, isotridecyl myristic, octyldodecyl myristic, 2-ethylhexyl palmitate, octyldodecyl ricinoleate, cetyl caprylate, diisostearyl malate, dioctyl succinate, 2-ethylhexane Cetyl acid, stearyl stearate, myristic acid myristic acid, 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, glyceryl tricaprylate, and the like.

Among these, higher alcohols, silicones, and hydrocarbons are particularly preferred from the viewpoints of emulsion stability, ease of application to hair, and improvement of finger passability.

As the higher alcohol, cetyl alcohol, cetostearyl alcohol, stearyl alcohol, and behenyl alcohol are more preferable. As silicones, dimethylpolysiloxane and aminoethylaminopropylmethylsiloxane/dimethylsiloxane copolymer are more preferable. As a hydrocarbon, paraffin, liquid paraffin, and petrolatum are more preferable.

The type of "surfactant" is not particularly limited, and it can be arbitrarily selected and contained from various types of cationic, anionic, nonionic, and amphoteric surfactants.

Examples of the nonionic surfactant include polyoxyalkylene alkyl ether, polyoxyalkylene alkylphenyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, sorbitan fatty acid ester, and polyoxyalkylene propylene glycol fatty acid. Ester, polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene sorbitol tetra fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, sucrose fatty acid ester, alkylglycoside, and the like.

Examples of cationic surfactants include alkyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride (cetrimonium chloride), stearyl trimethyl ammonium chloride (steatrimonium chloride), behenyl trimethyl ammonium chloride (behentrimonium Chloride), distearyl dimethyl ammonium chloride (distearyl dimethyl ammonium chloride), dicocoyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, lanolin fatty acid aminopropyl ethyl dimethyl ammonium ethyl sulfate, stearyl trimethyl ammonium saccharin, Cetyl trimethyl ammonium saccharin, behenyl trimethyl ammonium methyl sulfate, and quaternium-91 are illustrated.

Examples of anionic surfactants include alkyl ether sulfates such as POE sodium lauryl ether sulfate, sodium lauryl sulfate, sodium cetostearyl sulfate, sodium cetyl sulfate, and alkyl phosphates such as POE lauryl ether phosphoric acid and POE cetyl ether phosphoric acid. Kenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkanesulfonic acid salt, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate such as POE sodium lauryl ether acetate, α-sulfone fatty acid salt, triethanolamine of cocoyl glutamate (Cocoyl-glutamic acid TEA), N-acylamino acid type surfactants such as sodium palm oil fatty acid acyl glutamate, phosphate mono- or diester type surfactants such as monoethyl phosphate and dicetyl phosphate, and sulfosuccinic acid esters.

As an amphoteric ionic surfactant, the following (1)-(5) are illustrated.

(1) Palm oil fatty acid amidopropyldimethylamino acetate betaine, palm oil fatty acid amidopropyldimethylamino acetate betaine, lauric acid amidopropyldimethylamino acetate betaine (lauramidopropylbetaine), ricinoleic acid amidopropyldimethylamino acetate betaine Fatty acid amidopropyldimethylamino acetate betaine such as betaine acetate, and sodium salt, potassium salt, or triethanolamine salt thereof.

(2) Decyldimethylamino acetate betaine, lauryldimethylamino acetate betaine, myristyl dimethylamino acetate betaine, cetyldimethylamino acetate betaine, stearyldimethylamino acetate betaine, oleyldimethylamino acetate betaine, beta Alkyl dimethyl amino acetate betaine, such as henyl dimethyl amino acetate betaine and a palm oil alkyl dimethyl amino acetate betaine, and their sodium salt, potassium salt, or triethanolamine salt.

(3) Cocoamphoacetic acid Na (N-palm oil fatty acid acyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine), cocoamphopropionic acid Na (N-palm oil fatty acid acyl-N'-carboxyethyl-N'- Hydroxyethylethylenediamine), lauroamphoacetic acid Na (N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine), oliveamphoacetic acid Na, cacao terampoacetic acid Na, sesamphoacetic acid Na N-acylaminoethyl-N-2-hydroxyethylaminocar, such as sweet almond amphoacetate Na, stearoamphoacetate, palm amphoacetate Na, peanut amphoacetate Na, sunflower seed amphoacetic acid Na, cotton thread amphoacetic acid Na, etc. Acid salt.

(4) N-acylaminoethyl-N-carboxymethoxyethylaminocarboxylate salts such as Na cocoampodiacetate, Na cocoampodipropionic acid, and Na lauroampodiacetate.

(5) Hydroxyalkyl (C12-14) hydroxyethylsarcosine.

The hair-dye composition of the present invention is usually composed of a multi-agent formula. That is, the second formulation of the first agent containing the component (A), the component (B), the component (C), and optionally the component (E), and the second agent containing the oxidizing agent as the component (D), or ( It is composed of a first agent blending the component A) and the component (C), a second agent blending the component (B), and a third agent blending the component (D). It is preferable to be constituted by the second formula from the viewpoint of simplicity of operation. Further, if necessary, in addition to the first agent, the second agent, and the third agent, for example, a hair dyeing aid may be added to a multimodal formula.

(G) Formulation of hair dye composition

The formulation of the hair-dye composition is not particularly limited, for example, various known formulations such as gel, liquid, foam, paste, and cream are selected, but a paste or cream having the form of an oil-in-water emulsion is preferred. , A creamy formulation is more preferred. In addition, in the hair-dye composition of the present invention, each component of the (A) component, (B) component, (C) component, (D) component and, if necessary, the component (E) are each powdered in the first formula. It can also be dissolved in a solution such as water and applied to the hair.

Example

Although the present invention is specifically described by the Examples and Comparative Examples shown in the following table, the present invention is not limited to the following Examples. In addition, the numerical value in the table represents mass %.

After combining the first agent and the second agent in each example, immediately after preparing the coating composition by mixing the first agent and the second agent at 1:1 (mass ratio), 1.5 g of the coating composition was added to the yakmo hair bundle. (About 1 g) was applied. These yakmo hair bundles were allowed to stand for 30 minutes, then washed with water and air dried to complete the dyeing treatment of the yak hair hair bundles. The following evaluation was performed by five evaluators about the yakmo hair bundles subjected to dyeing treatment.

(1) sharpness of color tone

The dyed yakmo hair bundles were visually observed, and for hue, (5) very sharp hue, (4) sharp hue, (3) slightly sharp hue, (2) slightly inadequate sharpness, (1) inadequate sharpness 5 The color tone was sensory evaluated in steps. In addition, like 3.5, each intermediate evaluation may be performed.

(2) Stability of the first and second agents

The first agent and the second agent in each of Examples and Comparative Examples were filled with aluminum tubes, sealed, and then stored at 45°C for 3 months. Immediately after preparing the composition for coating by mixing the preserved first agent and second agent in a 1:1 (mass ratio), 1.5 g of the coating composition was applied to the yakmo hair bundles (about 1 g). These yakmo hair bundles were allowed to stand for 30 minutes, then washed with water and air dried to complete the dyeing treatment of the yak hair hair bundles. The following evaluation was performed about the yakmo hair bundles subjected to dyeing treatment.

The dyed yakmo hair bundles were visually observed, and for hue, (5) very sharp hue, (4) sharp hue, (3) slightly sharp hue, (2) slightly inadequate sharpness, (1) inadequate sharpness 5 The color tone was sensory evaluated in steps. In addition, like 3.5, each intermediate evaluation may be performed.

(3) color retention

Two dyed yakmo hairs were prepared, and one was untreated after that, and one of them was immersed in an aqueous solution of 10% polyoxyethylene lauryl ether sulfate (2E.O.) at 45° C. for 30 minutes, and thereafter, after that Washed and air-dried enough. Visually observe the difference between the two color shades, and for the degree of fading, (5) almost no color loss and very good color retention, (4) slight color loss but good color retention, (3) color loss but color The fat and oil was slightly good, (2) the color loss was slightly large and the color retention was slightly poor, and (1) the color loss was very large and the color retention was sensory evaluated in five stages. In addition, like 3.5, each intermediate evaluation may be performed.

"Evaluation results"

For each of the examples and comparative examples according to the formulation examples shown in Tables 1 and 2, in light of the above evaluation criteria (1) the sharpness of the color tone, (2) the aging stability of the first agent and the second agent, (3) color Maintenance was evaluated. The result shows the average of 5 evaluators.

In all the examples of the present invention, for all the items of (1) sharpness of color tone, (2) first and second agents, and (3) color retention, the evaluation criteria were 3 or more, respectively, and passed. It can be evaluated as and exhibited a sufficient effect as a hair dye.

On the other hand, in the comparative example, if any of the above 3 items is evaluated less than 3, and all components of the components A, B, C, and D in the amount specified in the present invention are not satisfied, sufficient effect as a hair dyeing agent It was confirmed that it could not be exhibited.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide a hair-dye composition excellent in color retention, which hair-dyeds hair vividly, while having good aging stability.

Claims (5)

(A) an oxidation dye,
(B) at least one acidic direct dye selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3 and ACID VIOLET 43,
(C) contains at least one antioxidant selected from L-ascorbic acid, L-cysteine and salts thereof,
The ratio of the blending amount of the component (A) to the blending amount of the component (B) is 0.05 to 50 in terms of mass ratio, and the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 as a mass ratio. The first agent of ∼ 5,
(D) Hair-dye composition containing a 2nd agent containing an oxidizing agent. (A) an oxidation dye,
(B) at least one acidic direct dye selected from the group consisting of ACID RED 51, ACID RED 52, ACID RED 87, FOOD RED 1, ACID ORANGE 7, ACID YELLOW 3 and ACID VIOLET 43,
(C) at least one antioxidant selected from L-ascorbic acid, L-cysteine and salts thereof, and,
(D) contains an oxidizing agent,
The ratio of the blending amount of the component (A) to the blending amount of the component (B) is 0.05 to 50 in terms of mass ratio, and the ratio of the blending amount of the component (C) to the blending amount of the component (A) and the component (B) is 0.01 as a mass ratio. Hair-dye composition, characterized in that-5. The method according to claim 1 or 2,
The hair-dye composition further contains (E) an alkali agent. The method according to claim 1 or 2,
With respect to the total amount of the hair dye composition, the blending amount of the component (A) is 0.05 to 2.0 mass%, the blending amount of the component (B) is 0.03 to 1.5 mass%, and the blending amount of the component (C) is 0.002 to 1.0 mass%, The hair-dye composition in which the content of the component (D) is 0.3 to 6.0 mass%. The method of claim 3,
The hair-dye composition, wherein the content of the component (E) is 0.2 to 5.0 mass% with respect to the total amount of the hair-dye composition.