JP2002193771A - Hair dye composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair dye composition having excellent hair bleaching power, with which the hair can be dyed in a bright and excellent color and which has a slightly pungent odor, low irritation to the scalp and a little damage to the skin. SOLUTION: In this hair dye composition in which a first agent containing an alkali agent is mixed with a second agent containing an oxidizing agent and used, the hair dye composition comprises (A) 1-70 wt.% of an organic solvent having 0.3-6 partition coefficient (logP) of octanol-water at 25 deg.C and <=200 molecular weight, (B) 0.1-2 wt.% of an organic solvent having <0.3 logP with the same definition as that of the component (A), (C) 20-70 wt.% of water, (D) 0.1-10 wt.% of the alkali agent and (E) 0.1-12 wt.% calculated as hydrogen peroxide of the oxidizing agent and has pH 7.5-12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dye composition having excellent hair bleaching power and hair dyeing power.

[0002]

2. Description of the Related Art Hair dyes contain a primary agent containing an alkaline agent.
A two-part type comprising an agent and a second agent containing an oxidizing agent is widely used as an oxidative hair dye or a permanent hair dye. The first alkaline agent enhances decolorization and hair dyeing effects,
It is also formulated to activate the function of the oxidizing agent and to promote the oxidative decomposition of melanin granules in the hair to obtain a bright color tone. In order to bleach and dye hair to a lighter shade than the ground color, sufficient bleaching power is required, but since hair bleaching power generally depends on the amount of alkali, when used for such purposes, Particularly, a sufficient amount of alkali is required. Conventionally, ammonia is generally used as an alkaline agent. However, ammonia has a strong irritating odor, and has the disadvantage of causing considerable discomfort during treatment.

For this reason, attempts have been made to use organic amines having a low pungent odor instead of ammonia (JP-A-59-106413, JP-A-1-213).
220, JP-A-5-246827, etc.). However, in these cases, there is a problem that the hair cannot be decolorized to a sufficiently bright color, and when used in a large amount, the hair remains relatively high on the scalp, so that the hair is easily stimulated. . In addition, when hair is treated with these agents, there is also a problem that the hair is damaged, the suppleness of the hair is lost, the hair becomes dry, and the comb is deteriorated.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to have excellent decolorizing power, to be able to evenly dye the color tone of hair in a bright and good color tone, to have less pungent odor and to stimulate the scalp. Another object of the present invention is to provide a hair dye composition which is excellent in decolorization and dyeing of hair with low hair damage and little damage to the hair.

[0005]

Means for Solving the Problems The present inventor contains two specific organic solvents in a specific amount in an oxidative hair dye composition,
Further, it has been found that the above problem can be solved by setting the water content to a specific range.

The present invention relates to a hair dye composition comprising a mixture of a first agent containing an alkaline agent and a second agent containing an oxidizing agent, the following components (A) to (E): (A) ) Octanol-water-partition coefficient at 25 ° C (log
1 to 70% by weight of an organic solvent having a P) of 0.3 to 6 and a molecular weight of 200 or less, and 0 to 70% by weight of an organic solvent having a log P of less than 0.3 as defined for the component (A). 0.1 to 2% by weight, (C) 20 to 70% by weight of water, (D) 0.1 to 10% by weight of alkali agent, and (E) 0.1 to 12% by weight of hydrogen peroxide as oxidizing agent. The present invention provides a hair dye composition having a pH of 7.5 to 12.

[0007] By satisfying this condition, the oxidizing agent and the alkaline agent can work efficiently in the hair, leading to an improvement in the bleaching power and the hair dyeing power. Therefore, the amount of the alkaline agent can be further reduced without deteriorating the performance, and the irritating smell, damage to the hair, irritation to the scalp, and the like can be reduced. Further, it is effective in the case where the gray hair mixed with white hair, which has been increasing in demand in recent years, is concealed by dyeing the gray hair so as to be assimilated with the color of the whole hair while making the hair mixed with the bright color. In addition, both the part of the hair chemically treated with a permanent agent and the like and the untreated part can be uniformly dyed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The organic solvent of the component (A) used in the hair dye composition of the present invention is octanol at 25 ° C.
It is necessary that the water-partition coefficient (log P) is 0.3 or more and the molecular weight is 200 or less, and an organic solvent having one hydroxyl group in the molecule is preferable. Here, log P is a measure for the distribution of a substance between the octanol phase and the aqueous phase, which is defined by the following equation. Leo,
C. Hansch, D.A. Elkins, Chemical Reviews,
Vol. 71, No. 6, (1971) describes an example of the calculated value. In the present invention, the measurement was performed at 25 ° C. by the method according to the Chemical Substances Control Law, Revised 4th Edition, “Method for measuring the distribution coefficient (1-octanol / water) of chemical substances <1>” (published by Chemical Daily). Value.

(Formula) log P = log ([substance] _Octanol / [substance] _Water ) [where [substance] _Octanol is the molar concentration of the substance in the octanol phase, and [substance] _Water is the substance in the aqueous phase Are shown. ]

The log P and the molecular weight of the component (A) must be from 0.3 to 6 from the viewpoint that the alkaline agent and the oxidizing agent, which are decolorizing components, work effectively in the hair. , Log P is preferably from 0.5 to 3, more preferably from 0.8 to 1.3. Further, the molecular weight needs to be 200 or less, preferably 185
Or less, more preferably 160 or less. As such a component (A), for example, benzyl alcohol (25 ° C.)
Log P 1.1; the same applies hereinafter), 2-benzyloxyethanol (1.2), ethylene glycol mono n-
Butyl ether (0.8), diethylene glycol mono n-butyl ether (0.9), n-butanol (0.
8), 2-phenoxyethanol (1.2), 2-phenylethanol (1.2), 1-phenoxy-2-propanol (1.1), cyclohexanol (1.2) and the like, among which benzyl Alcohols and 2-benzyloxyethanol are preferred. These components (A)
Can be used alone or in combination of two or more. The content thereof is 1% in the hair dye composition obtained by mixing the first agent and the second agent from the viewpoint of a sufficient bleaching / hair dyeing effect. To 70% by weight (hereinafter simply referred to as%), preferably 2% by weight.
-50%, more preferably 3-40%, especially 5-25%
Is preferred.

Component (B) used in the hair dye composition of the present invention
Octanol-water-partition coefficient at 25 ° C. (log
Examples of the organic solvent in which P) is less than 0.3 include lower alkanols, polyols having 2 to 6 carbon atoms, mono-lower alkyl ethers of glycol, mono-lower alkyl ethers of diglycol, and N-lower alkylpyrrolidone. No. Here, "lower" means having 3 or less carbon atoms.

Specific examples of the component (B) include lower alkanols such as ethanol (log P-0.3 at 25 ° C .; the same applies hereinafter), isopropanol (0.1); ethylene glycol (-1.4); Propylene glycol (-
1.1), lower polyols such as 1,3-butanediol (-1.4), diethylene glycol (-1.3), hexylene glycol (-0.7), glycerin (-2.2); 2 Mono-lower alkyl ethers of glycols such as -methoxyethanol (-0.7) and 2-ethoxyethanol (-0.2); methoxydiglycol (-0.
7), lower alkyl ethers of diglycol such as ethoxydiglycol (-0.2); N-lower alkylpyrrolidone such as N-methylpyrrolidone (-0.5) and N-ethylpyrrolidone (-0.2) Is mentioned.

The content of the component (B) is from 0.1 to 2% in the hair dye composition obtained by mixing the first and second agents from the viewpoint of a sufficient bleaching / hair dyeing effect. , Preferably 0.1 to 1.
5%, especially 0.1-1% is preferred.

Component (C) used in the hair dye composition of the present invention
The content of water in the hair dye composition obtained by mixing the first agent and the second agent is 20 to 70%, preferably 25 to 65%.
%, Particularly preferably 30 to 60%. When it is 20% or more, the dyeing power is improved, and when it is 70% or less, an alkaline agent and an oxidizing agent, which are decolorizing components, effectively act in the hair, and the decolorizing power is improved.

Component (D) used in the hair dye composition of the present invention
Examples of the alkaline agent include those other than ammonia, that is, monoethanolamine, isopropanolamine,
Examples thereof include alkanolamines such as -amino-2-methylpropanol and 2-aminobutanol, and guanidium salts such as guanidine carbonate. Among them, alkanolamines, particularly monoethanolamine, are preferable. These alkaline agents can be used alone or in combination of two or more, and the content thereof is 0.1 to 10% in the hair dye composition obtained by mixing the first agent and the second agent, and furthermore, The range of 0.5 to 5%, particularly 1 to 3%, is preferable in terms of a sufficient bleaching / hair dyeing effect and a reduction in irritation to the scalp. The hair dye composition of the present invention can provide a sufficient bleaching / hair dyeing effect without using ammonia as an alkali agent.In this case, there is no irritating odor due to ammonia, and discomfort occurs during use. Not preferred. If ammonia is used, a more powerful decoloring / hair dyeing effect can be obtained. When ammonia is used, its content is preferably in the range of 0.01 to 3% of the hair dye composition obtained by mixing the first and second agents, so that the decoloring / hair dyeing effect can be used as required. Can be obtained.

Component (E) used in the hair dye composition of the present invention
Examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium perborate, potassium perborate, sodium percarbonate, and potassium percarbonate, with hydrogen peroxide being particularly preferred. The content of the oxidizing agent is preferably in the hair dye composition obtained by mixing the first agent and the second agent from the viewpoint of sufficient bleaching / hair dyeing effect (converted amount) as hydrogen peroxide and reduction of irritation of the scalp. Is 0.1 to 12%, more preferably 1 to 9
%, Especially 2-6%.

The mixing ratio (weight ratio) of the first agent containing the alkaline agent and the second agent containing the oxidizing agent of the hair dye composition of the present invention is 1: 0: 2. The range of 5 to 1 to 3 is practical and preferable. The first agent has a pH of 8 to 25 ° C.
12, the second agent preferably has a pH of 2 to 5, and the pH of the hair dye composition obtained by mixing the first and second agents is 7.5 to 12,
The pH is preferably 8 to 11 from the viewpoints of the bleaching / hair dyeing effect and skin irritation.

The hair dye composition of the present invention is used as a bleaching agent (hair bleach) without containing an oxidation dye intermediate or a direct dye when the purpose is simply to bleach the hair. In the case of the purpose of the present invention, an oxidation dye intermediate or a direct dye is further contained.

As such an oxidation dye intermediate, known color developing substances and coupling substances commonly used in hair dyes can be used. Examples of the developing substance include paraphenylenediamine, toluene-2,5-diamine,
2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, N, N-bis (2-hydroxyethyl) -paraphenylenediamine, 2- (2
-Hydroxyethyl) -paraphenylenediamine, 2,
6-dimethyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 1,3-bis (N- (2-hydroxyethyl) -N- (4-aminophenyl) amino) -2-propanol, PEG-3, 3,2'-paraphenylenediamine, paraaminophenol, paramethylaminophenol, 3-methyl-4-aminophenol, 2-aminomethyl-4-aminophenol, 2-
(2-hydroxyethylaminomethyl) -4-aminophenol, orthoaminophenol, 2-amino-5
Methylphenol, 2-amino-6-methylphenol, 2-amino-5-acetamidophenol, 3,4-
Diaminobenzoic acid, 5-aminosalicylic acid, 2,4
5,6-tetraaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine, 4,5-diamino-
Examples thereof include 1- (4'-chlorobenzyl) pyrazole, 4,5-diamino-1-hydroxyethylpyrazole and salts thereof.

Examples of the coupling substance include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) anisole, 2,4-diamino-5-methylphenetol, 2,4-diamino-5- (2-hydroxyethoxy) toluene, 2,4-dimethoxy-1,3-diaminobenzene, 2,6-bis (2-hydroxyethylamino) toluene, 2,4-diamino-5 -Fluorotoluene, 1,3-bis (2,4-diaminophenoxy)
Propane, metaaminophenol, 2-methyl-5-aminophenol, 2-methyl-5- (2-hydroxyethylamino) phenol, 2,4-dichloro-3-aminophenol, 2-chloro-3-amino-6 -Methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-methaminophenol, 2
-Methyl-4-methoxy-5- (2-hydroxyethylamino) phenol, 2-methyl-4-fluoro-5-
Aminophenol, resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5-
Dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4-hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxybenzo Morpholine, 3,4-methylenedioxyphenol,
2-bromo-4,5-methylenedioxyphenol,
3,4-methylenedioxyaniline, 1- (2-hydroxyethyl) amino-3,4-methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy-3,5 -Diaminopyridine,
Examples thereof include 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine, and salts thereof.

The color-developing substance and the coupling substance can be used alone or in combination of two or more kinds. The contents thereof are respectively in the hair dye composition obtained by mixing the first and second parts. 0.01-5%, especially 0.1-4% is preferable.

As the direct dye, known acid dyes, basic dyes, disperse dyes, reactive dyes and the like which can be used for hair dyes can be used. Examples of the acid dye include Red No. 2 (C.I. 16185) and Red No. 3 (C.I.
I. 45430), Red No. 102 (CI.1625)
5), Red No. 104 (1) (CI. 45410),
Red No. 105 (1) (CI. 45440), Red 1
No. 06 (CI. 45100), Yellow No. 4 (CI.1100)
9140), yellow No. 5 (C.I. 15985), green 3
No. (C.I. 42053), Blue No. 1 (C.I.
90), Blue No. 2 (CI.73015), Red 201
No. (CI. 15850), Red No. 227 (CI.1)
7200), Red No. 230 (1) (CI. 4538)
0), Red No. 231 (CI. 45410), Red 23
No. 2 (CI. 45440), orange color No. 205 (CI. 15510), orange color No. 207 (C.I.
I. 45425), Yellow No. 202 (1) (CI.4
5350), Yellow No. 203 (CI. 47005), Green No. 201 (CI. 61570), Green No. 204 (CI. 59040), Green No. 205 (CI. 42)
095), Blue No. 202 (CI. 42052), Blue No. 205 (CI. 42090), Brown 201 (CI. 20170), Red 401 (CI. 45).
190), Red No. 502 (CI. 16155), Red No. 503 (CI. 16150), Red No. 504 (C.I.
I. 14700), Red No. 506 (CI. 1562)
0), orange No. 402 (CI. 14600), yellow 402 (CI. 18950), yellow 403 (1) (CI. 10316), yellow 406 (C.I.
I. 13065), Yellow No. 407 (CI. 1882)
0), green No. 401 (CI. 10020), green 40
No. 2 (C.I. 42085) and purple No. 401 (C.I.
60730), black No. 401 (CI. 20470),
Acid Black 52 (CI.15711), Acid Blue 1 (CI. 42045), Acid Blue 3
(CI. 42051), Acid Blue 62 (C.I.
I. 62045), Acid Brown 13 (CI.1)
0410), Acid Green 50 (CI. 4409)
0), Acid Orange 3 (CI. 10385), Acid Orange 6 (CI. 14270), Acid Red 14 (CI. 14720), Acid Red 35
(CI. 18065), Acid Red 73 (C.I.
I. 27290), Acid Red 184 (C.I.1)
5885), Brilliant Black 1 (CI. 284)
40) and the like.

Examples of basic dyes include Basic Blue 7 (CI. 42595) and Basic Blue 16
(CI. 12210), Basic Blue 22 (C.I.
I. 61512), Basic Blue 26 (CI.4)
4045), Basic Blue 99 (CI. 5605)
9), Basic Blue 117, Basic Violet 10 (CI. 45170), Basic Violet 14 (CI. 42515), Basic Brown 1
6 (CI. 12250), basic brown 17
(CI. 12251), Basic Red 2 (C.I.
I. 50240), Basic Red 12 (CI.4
8070), Basic Red 22 (CI. 1105)
5), Basic Red 51, Basic Red 76
(CI. 12245), Basic Red 118
(CI. 12251: 1), Basic Orange 3
1, Basic Yellow 28 (CI.48054),
Basic Yellow 57 (CI. 12719), Basic Yellow 87, Basic Black 2 (CI.
11825); Japanese Patent Publication No. 58-2204;
Basic dyes containing a quaternized nitrogen atom in the side chain of an aromatic ring, as described in JP-A-118832;
Basic dyes described in JP-A-502946, JP-A-10-182379, JP-A-11-349457 and the like can be mentioned.

The direct dyes other than the acid dyes and the basic dyes include, for example, 2-amino-3-nitrophenol, 2-amino-4-nitrophenol, 2-amino-
5-nitrophenol, 4-amino-3-nitrophenol, 2-amino-6-chloro-4-nitrophenol, 4-hydroxypropylamino-3-nitrophenol, 3-nitroparahydroxyethylaminophenol, 2-nitro Paraphenylenediamine, 4-nitroorthophenylenediamine, 4-nitrometaphenylenediamine, 6-nitroorthotoluidine, 6-nitroparatoluidine, hydroxyethyl-2-nitroparatoluidine, N, N'-bis (2-hydroxyethyl ) -2-
Nitroparaphenylenediamine, 2-chloro-5-nitro-N-hydroxyethylparaphenylenediamine, 2
-Nitro-5-glycerylmethylaniline, 3-methylamino-4-nitrophenoxyethanol, N-ethyl-3-nitroPABA, piclamic acid, 2-hydroxyethylpiclamic acid, 4-nitrophenylaminoethylurea, purple No. 201 (CI. 60725), Solvent Yellow 44 (CI. 56200), Disperse Red 17 (CI. 11210), Disperse Violet 1 (CI. 61100), Disperse Violet 4 (CI. I. 61105), Disperse Blue 3 (CI. 61505), Disperse Blue 7
(CI. 62500), HC Blue No. 2, HC Blue No. 8, HC Orange No. 1, HC orange N
o. 2, HC Red No. 1, HC Red No. 3, H
C Red No. 7, HC Red No. 8, HC Red N
o. 10, HC Red No. 11, HC Red No. 1
3, HC Red No. 16, HC Violet No.
2, HC Yellow No. 2, HC Yellow No. 5, H
C Yellow No. 6, HC Yellow No. 7, HC Yellow No. 9, HC Yellow No. 12 and the like.

The direct dyes can be used alone or in combination of two or more. The content of the direct dyes is 0.001 to 5% in the hair dye composition obtained by mixing the first and second agents, Particularly, 0.01 to 4% is preferable. Further, an oxidation dye and a direct dye can be used in combination.

The hair dye composition of the present invention may contain a fragrance. The hair dye composition of the present invention, even without using ammonia as an alkali agent, can obtain a sufficient bleaching / hair dyeing effect, so that the degree of freedom of perfume is increased, and a fruity scent, a floral scent, etc. It has the advantage that various scents can be easily added.

The hair dye composition of the present invention comprises a two-part composition comprising a first part containing an alkaline agent and a second part containing an oxidizing agent, as well as a hair bleaching agent or a dyeing agent widely used at present. Provided as a type. The dosage forms of these first and second agents can be, for example, liquid, emulsion, cream, gel, paste, mousse, etc., and can also be in aerosol form.

In order to bleach or color the hair using the hair dye composition of the present invention, for example, after mixing the first and second agents of the hair dye composition of the present invention, 15 to 45 parts are mixed. The hair may be applied to the hair at a temperature of 0 ° C., washed after a working time of 1 to 50 minutes, preferably 3 to 30 minutes, and then dried.

[0029]

Example 1 The following hair dye composition (hair bleaching agent) was prepared and evaluated for bleaching properties. 1st agent Benzyl alcohol 9% ethanol 2.8 Monoethanolamine 6 Oleyl alcohol 2 Polyoxyethylene (20) octyl dodecyl ether 18 Polyoxyethylene (9) Oleyl ether 6 Polyoxyethylene (3) Tridecyl ether 15 Stearyl chloride Trimethylammonium 2 Polyethylene glycol 400 8 Liquid paraffin 5 Perfume 0.4 Purified water 25.8 Total 100 ・ Second agent Hydrogen peroxide solution (35%) 17% Polyoxyethylene (9) oleyl ether 25 Oleyl alcohol 15 8- Quinolinol sulfate 0.04 75% phosphoric acid 0.02 Purified water 42.94 Total 100 1.5 parts by weight of the second agent was mixed with 1 part by weight of the first agent. In the mixture, benzyl alcohol of component (A) was 3.6%, ethanol of component (B) was 1.1%, and
The water of (C) was contained at 42.72%.

(Evaluation method) Using hair having no chemical treatment history collected from one Japanese, a hair bundle of 10 g was
Was made. Next, 7 g of the product of the present invention was uniformly applied to one hair bundle. After standing in a thermostat at 30 ° C for 15 minutes, 3
Rinse with 0 ° C lukewarm water, shampoo and rinse, then dry. Compare the treated hair bundle with the remaining hair bundle,
The degree of decolorization after the treatment was evaluated by 10 panelists based on the following criteria.

(Evaluation criteria) 4 points: A fairly bright color was obtained. 3 points: Bright color. 2 points: The color became slightly bright. 1 point: Does not change much. 0 point: No change at all.

The total evaluation of the panelists was 40, indicating that they had excellent bleaching power, and that they did not contain ammonia, so that they had no discomfort during treatment.

Example 2 The following hair dye composition (hair bleaching agent) was prepared. 1st agent ethylene glycol mono n-butyl ether 15% ethanol 3.7 aqueous ammonia (28%) 4 oleyl alcohol 2 polyoxyethylene (20) octyl dodecyl ether 18 polyoxyethylene (9) oleyl ether 6 polyoxyethylene (3 ) Tridecyl ether 15 Stearyl trimethyl ammonium chloride 2 Polyethylene glycol 400 4 Polypropylene glycol 400 8 Fragrance 0.6 Purified water 21.7 Total 100 ・ Second agent Hydrogen peroxide solution (35%) 17% Polyoxyethylene (9) Oleyl ether 25 Oleyl alcohol 15 Amino-modified silicone emulsion (40%) ¹⁾ 1.5 8-quinolinol sulfate 0.04 75% phosphoric acid 0.02 Purified water 41.44 Total 100 1) SM8702C (Toray Dow Corning Silicone) Company) (Hereinafter, the same product was used.) First agent: second agent = 1: 1 (weight ratio) was mixed and used for Japanese black hair. The decolorizing power of the hair was excellent.

Example 3 The following hair coloring agent (hair bleaching agent) was prepared. 1st agent 2-benzyloxyethanol 20% propylene glycol 3.9 monoethanolamine 4 ammonia water (28%) 2 oleyl alcohol 3 polyoxyethylene (20) octyldodecyl ether 21 polyoxyethylene (3) tridecyl ether 18 Stearyltrimethylammonium chloride 25 Perfume 0.5 Purified water 25.1 Total 100 ・ Second agent Hydrogen peroxide solution (35%) 17% Cetyl alcohol 2 Polypropylene glycol 400 10 Stearyltrimethylammonium chloride 58 8-Quinolinol sulfate 0.04 75% phosphoric acid 0.03 Purified water 65.93 Total 100 A mixture of 1st agent: 2nd agent = 1: 1 (weight ratio) was used for Japanese black hair. The decolorizing power of the hair was excellent.

Example 4 The following hair dye composition was prepared. 1st agent para-aminophenol 0.9% para-amino orthocresol 1 ethylene glycol mono n-butyl ether 20 monoethanolamine 6 ammonia water (28%) 5 oleyl alcohol 4 polyoxyethylene (20) octyldodecyl ether 17 polyoxyethylene (9) ) Oleyl ether 4 Polyoxyethylene (3) tridecyl ether 14 Stearyl trimethylammonium chloride 0.5 Dicetyldimethylammonium chloride 0.3 Polypropylene glycol 400 5 Sodium sulfite anhydride 0.6 Tetrasodium edetate dihydrate 0.1 Perfume 0.5 Purified water 21.1 Total 100 ・ Second agent Hydrogen peroxide solution (35%) 17% Cetyl alcohol 2.5 Propylene glycol 0.5 Polyoxyethylene (2) cetyl ether 1.2 Salt Stearyltrimethylammonium 1 Amino-modified silicone emulsion ^(40%) 1) 1 8-quinolinol sulfate 0.04 75% phosphoric acid 0.03 Purified water 76.73 Total 100 first agent: second agent = 1: 1 (by weight Ratio) and used for Japanese black hair. The hair was brilliantly dyed orange and light brown.

Example 5 The following hair dye composition was prepared. 1st agent Toluene-2,5-diamine 0.12% paraaminophenol 1.2 metaaminophenol 0.8 paraaminoorthocresol 0.3 orthoaminophenol 0.3 2-benzyloxyethanol 16 ethanol 3 monoethanolamine 6 Oleyl alcohol 3 Polyoxyethylene (20) octyl dodecyl ether 16 Polyoxyethylene (9) Oleyl ether 8 Polyoxyethylene (3) tridecyl ether 14 Isostearyl glyceryl ether 1.5 Isostearyl pentaerythryl glyceryl ether 4 Stearyl trimethyl chloride Ammonium 2 Sodium sulfite anhydride 0.5 Ascorbic acid 0.5 Perfume 0.5 Purified water 22.28 Total 100 ・ Second agent Hydrogen peroxide solution (35%) 17% Cetyl alcohol 3 Glycerin 1.2 Polyoxyethylene (2) cetyl ether 0.5 Polyoxyethylene (40) cetyl ether 0.5 Isostearyl pentaerythryl glyceryl ether 2 Stearyl trimethyl ammonium chloride 2.4 Amino-modified silicone emulsion (40%) ¹⁾ 28-Quinolinol sulfate 0.04 75% phosphoric acid 0.03 Purified water 71.33 Total 100 First agent: Second agent = 1: 1.5 (weight ratio) and mixed with Japanese gray hair Used for mixed hair. The hair was dyed light brown and the gray hair was hidden.

[0037]

Industrial Applicability The hair dye composition of the present invention has excellent decolorizing power, can dye hair in a bright and good color tone, has less pungent odor, and has less irritation to the scalp. And less damage to the hair.

Continuation of the front page (72) Inventor Hiroshi Shibata 2-1-3 Bunka, Sumida-ku, Tokyo F-term in Kao Corporation Research Laboratories 4C083 AB012 AB051 AB052 AB082 AB352 AB411 AB412 AC022 AC072 AC082 AC102 AC122 AC152 AC172 AC182 AC542 AC552 AC692 AC852 AD042 AD162 AD642 BB43 BB53 CC36 EE06 EE07 EE09 EE10 EE26

Claims (1)

[Claims] 1. A hair dye composition comprising a mixture of a first agent containing an alkali agent and a second agent containing an oxidizing agent, the following components (A) to (E): (A) 25 Octanol-water-partition coefficient at ℃ (log
1 to 70% by weight of an organic solvent having a P) of 0.3 to 6 and a molecular weight of 200 or less, and 0 to 70% by weight of an organic solvent having a log P of less than 0.3 as defined for the component (A). 0.1 to 2% by weight, (C) 20 to 70% by weight of water, (D) 0.1 to 10% by weight of alkali agent, and (E) 0.1 to 12% by weight of hydrogen peroxide as oxidizing agent. A hair dye composition having a pH of 7.5 to 12.