JP2005330193A - Oxidation hair dyeing or decoloring composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an oxidation hair dyeing or a decoloring composition having excellent dyeing or decoloring power of hair with a slight damage feeling of the hair after use. <P>SOLUTION: This oxidation hair dyeing or decoloring composition is used by mixing a first agent containing an alkaline agent with a second agent containing hydrogen peroxide just before use and comprises the following ingredients (A) to (G) in the composition after mixing. (A) an organic solvent having 0.3-6 octanol-water partition coefficient (logP) at 25°C and ≤200 molecular weight, (B) an amino-modified silicone, (C) a cationic polymer, (D) a cationic surfactant, (E) an oxidation hair dye intermediate or a direct dye (without containing both in the case of the decoloring agent), (F) the alkaline agent and (G) the hydrogen peroxide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an oxidative hair coloring or decoloring composition that is excellent in hair dyeing and decoloring power and has little hair damage after use.

  For decolorization and dyeing of hair, an oxidative hair dye or decoloring agent that decolorizes or dyes hair by an oxidation reaction in the presence of an alkali agent, an oxidizing agent or the like is widely used.

  However, oxidative hair dyes or depigmenting agents are liable to cause hair damage. It gets worse. Furthermore, such hair damage accumulates due to repeated decolorization or dyeing, and is particularly noticeable at the hair ends where the number of treatments increases. For this reason, since the damage degree is different between the root portion and the hair tip portion, there is also a problem that unevenness is likely to occur when the hair is dyed or decolored, and the color of the hair tip portion is easily removed by washing with shampoo.

  Therefore, in order to cope with these problems, an additive having a conditioning action is used. For example, by adding a silicone derivative such as amino-modified silicone oil to the hair dye, the hair can be dyed in a deep color tone (see Patent Document 1), and by adding a cationic polymer to the oxidative hair dye, conditioning is achieved. It has been reported that an effect can be obtained (see Patent Document 2).

However, the present condition is that a higher conditioning action is required for oxidative hair dyes or depigmenting agents.
JP 57-192310 A U.S. Pat.No. 4,362,528

  An object of the present invention is to provide an oxidative hair coloring or decoloring composition that imparts a long-lasting moist feeling and ease of uniting to hair and is excellent in dyeing power and decoloring power.

  The present inventor has found that the above-mentioned problems can be solved by using a specific organic solvent, amino-modified silicones, a cationic polymer, and a cationic surfactant in an oxidative hair dyeing or bleaching composition.

The present invention is a composition used by mixing a first agent containing an alkaline agent and a second agent containing hydrogen peroxide immediately before use, and the following components (A) to (G)
(A) Organic solvent having an octanol-water-partition coefficient (logP) of 0.3-6 at 25 ° C. and a molecular weight of 200 or less
(B) Amino-modified silicone
(C) Cationic polymer
(D) Cationic surfactant
(E) Oxidative dye intermediate or direct dye (not included in the case of decolorizing agent)
(F) Alkaline agent
(G) An oxidative hair coloring or decoloring composition containing hydrogen peroxide is provided.

  The oxidative hair coloring or decoloring composition of the present invention can impart a long lasting moist feeling and ease of uniting to the hair, and is excellent in dyeing power and decoloring power, from the root to the tip of the hair regardless of the degree of hair damage. It can be uniformly dyed (decolored) and has excellent shampoo fastness (particularly damaged by chemical treatment).

The oxidative hair coloring or decoloring composition of the present invention is a granulated composition such as a persulfate as a two-part type comprising a first agent containing an alkali agent and a second agent containing an oxidant, or as a third agent. It takes the form of a three-part type formed by combining a powdery oxidizing agent comprising a product or a liquid conditioning agent containing component (B). Hereinafter, the “total composition” in the present invention refers to the whole composition immediately before use in which the first agent and the second agent are mixed in the case of the two-agent type, and in the case of the three-agent type, the first agent, The entire composition immediately before use in which the second agent and the third agent are mixed.
[Component (A): Organic solvent]
A water-compatible organic solvent having an octanol-water-partition coefficient (logP) at 25 ° C. of 0.3 or more and a molecular weight of 200 or less is a liquid that is generally mixed with water at a certain ratio but does not undergo free mixing. Thus, it has the effect of increasing the decolorizing power by hydrogen peroxide. Examples of such water-compatible organic solvents include benzyl alcohol (logP 1.10 at 25 ° C .; the same applies hereinafter), 2-benzyloxyethanol (1.22), ethylene glycol mono n-butyl ether (0.841), diethylene glycol mono n-butyl ether ( 0.905) and n-butanol (0.823), among which benzyl alcohol and 2-benzyloxyethanol are preferred. These organic solvents can be used singly or in combination of two or more, and the blending amount thereof is in the total composition in which the first agent and the second agent are mixed from the viewpoint of sufficient decolorization and hair dyeing effect. Although it is 8 weight% or more, 10 to 40 weight%, especially 10 to 25 weight% are preferable.

  Here, logP is a measure for the distribution of substances between the octanol phase and the aqueous phase and is defined by the following formula. A. Leo, C. Hansch, D. Elkins, Chemical Review Examples of calculated and measured values are described in Chemical Reviews, Vol. 71, No. 6 (1971). In the present invention, at 25 ° C., the method of the Chemical Substances Control Law Revised 4th edition “Method for measuring distribution coefficient of chemical substance (1-octanol / water) <Part 1>” (published by Chemical Industry Daily) The value measured in.

logP = log ([Substance] _Octanol / [Substance] _Water )
[In the formula, [Substance] _Octanol represents the molar concentration of the substance in the octanol phase, and [Substance] _Water represents the molar concentration of the substance in the aqueous phase. ]
The water-compatible organic solvent used in the present invention is required to have a log P at 25 ° C. of 0.3 or more from the viewpoint of good migration of the decoloring agent to the hair, and the log P at 25 ° C. is 0.8 to 1.3. Those are preferred. Further, from the viewpoint of high decoloring power, the molecular weight of the organic solvent needs to be 200 or less, preferably 185 or less, more preferably 160 or less.
[Component (B): Amino-modified silicone]
The amino-modified silicone of component (A) is contained in any one or more of the first agent, the second agent, and the third agent. Any amino-modified silicone may be used as long as it has an amino group, an imino group or an ammonium group. For example, amino-modified silicone oil in which all or part of the terminal hydroxyl groups are blocked with methyl groups or the like, and amodimethicone in which the terminals are not blocked are mentioned. The greater the degree of polymerization of the amino-modified silicone, the higher the viscosity and the better the persistence, and the longer the effect persists on the hair. Preferable amino-modified silicone includes amodimethicone represented by the following general formula (1).

[Wherein R ⁰ represents a hydroxyl group, a hydrogen atom or R, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, A represents R, a group —R ′-(NHCH ₂ CH ₂ ) _n NH ₂ , a group OR or a hydroxyl group, R ′ represents a divalent hydrocarbon group having 1 to 8 carbon atoms, n represents a number of 0 to 3, p and q represent the total number of silicon atoms (p + q + 2 ) Is a number average of 10 to 20,000, preferably 30 to 1,000, more preferably 40 to 800. The amino equivalent described later is 500 g / mol to 100,000 g / mol, preferably 1000 g / mol to 80,000 g / mol, and more preferably 2000 g / mol to 50,000 g / mol. ]
Specific examples of suitable commercially available amino-modified silicones include SF8451C (Toray Dow Corning Silicone, viscosity 600 mm ² / s, amino equivalent 1700 g / mol), SF8452C (Toray Dow Corning Silicone, viscosity 700 mm ² / s, amino equivalent weight 6400g / mol), SF8457C (Dow Corning Toray silicone Co., viscosity 1200 mm ² / s, amino equivalent weight 1800g / mol), KF8003 (GE Toshiba silicones Co., viscosity 1850 mm ² / s, an amino equivalent of 2000 g / mol), amino modified silicone oils such as KF867 (GE Toshiba Silicone, viscosity 1300 mm ² / s, amino equivalent 1700 g / mol), and amojime such as SM8704C (Toray Dow Corning Silicone, amino equivalent 1800 g / mol) A corn emulsion is mentioned. The amino-modified silicone oil may be blended in the form of an emulsion. Emulsions of amino-modified silicones can be obtained by mechanical emulsification (high shear mechanical mixing of amino-modified silicone and water), chemical emulsification (emulsification of amino-modified silicone with water and emulsifier), or combinations thereof, or by emulsion polymerization. Can be prepared.

  The content of the amino-modified silicone is the total composition (hereinafter simply referred to as “total composition”) consisting of a first agent containing an alkali agent and a second agent containing an oxidizing agent (and a third agent in the case of a three-agent type). 0.01 to 30% by weight, more preferably 0.05 to 20% by weight, and particularly preferably 0.1 to 10% by weight.

[Equivalent amino equivalent]
In addition, as the silicones other than the component (B), cyclic polysiloxane, phenyl polysiloxane, methyl polysiloxane and the like may be used. Examples of the methylpolysiloxane include dimethylpolysiloxane (INCI name: dimethicone), methylphenylpolysiloxane, dimethylpolysiloxane having a hydroxy end group (INCI name: dimethiconol), and described in International Publication No. 96/31188. Examples include slightly crosslinked silicone gum. In any case, the content ratio of each silicone is preferably in the range where the converted amino equivalent represented by the following formula is 500 to 100,000 g / mol, more preferably 1000 to 80,000 g / mol, particularly 2000 to 5 A range of 10,000 g / mol is preferred.
Equivalent amino equivalent (g / mol) = [total weight of all silicones in 1 g of total composition (g / g)] / [total of amino group, imino group and ammonium group of amino-modified silicone in 1 g of total composition Number of moles (mol / g)].

  Here, “total weight (g / g) of all silicones in 1 g of total composition” and “total number of moles of amino groups, imino groups and ammonium groups of amino-modified silicone in 1 g of total composition (mol / mol) g) ”is obtained as follows.

  First, silicones are fractionated from each of the first agent and the second agent (in the case of a three-agent type, the third agent), and the total weight (g) of all silicones in each agent and amino-modified silicone The total number of moles (mol) of the amino group, imino group and ammonium group is determined. Next, considering the mixing ratio of each agent in the whole composition, the total weight (g / g) of all silicones in 1 g of the whole composition, and the amino group, imino group and amino group of the amino-modified silicone in 1 g of the whole composition Calculate the total number of moles of ammonium groups (mol / g). Finally, the converted amino equivalent (g / mol) is calculated using the converted amino equivalent calculation formula.

[Component (C): Cationic polymer]
The cationic polymer of component (C) is contained in any one or more of the first agent, the second agent, and the third agent. The cationic polymer refers to a polymer having a cationic group or a group that can be ionized to a cationic group, and includes an amphoteric polymer that becomes cationic as a whole. That is, the cationic polymer is an aqueous solution containing an amino group or an ammonium group in the side chain of the polymer chain or containing a diallyl quaternary ammonium salt as a constituent unit, such as a cationized cellulose derivative, a cationic starch, or a cationized guar gum. Derivatives, diallyl quaternary ammonium salt polymers or copolymers, quaternized polyvinylpyrrolidone derivatives, and the like. Among these, diallyl quaternary ammonium salt is included as a structural unit particularly in terms of softness during shampooing, smoothness and ease of fingering, ease of packing during drying and moisturizing effect, and stability of the agent. Polymers, quaternized polyvinyl pyrrolidone derivatives, and cationized cellulose derivatives are preferable, diallyl quaternary ammonium salt polymers or copolymers, and cationized cellulose derivatives are more preferable, diallyl quaternary ammonium salt polymers or copolymers. Most preferred.

  As the skeleton of the diallyl quaternary ammonium salt polymer, one represented by the following general formula (2) or (3) is preferable.

[In the formula, R ¹ and R ² may be the same or different, and are a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group (such as a phenyl group), a hydroxyalkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxy group. Represents an alkyl group or a carboalkoxyalkyl group, R ³ and R ⁴ may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, and X ⁻ represents an anion (chloride ion, Bromide ion, iodide ion, sulfate anion, sulfonate anion, methyl sulfate anion, phosphate anion, nitrate anion, etc.). ]
Examples of the monomer constituting the copolymer with the diallyl quaternary ammonium salt include acrylic acid, methacrylic acid or salts thereof, and acrylamide, and acrylic acid, methacrylic acid or salts thereof are particularly preferable. A copolymer of acrylic acid, methacrylic acid or a salt thereof and a diallyl quaternary ammonium salt has a high constituent ratio of diallyl quaternary ammonium salt, and becomes a cationic polymer as a whole.

  Specific examples of the polymer or copolymer of diallyl quaternary ammonium salt include dimethyldiallylammonium chloride polymer (Polyquaternium-6, such as Marquat 100; ONDEO Nalco), dimethyldiallylammonium chloride / acrylic acid copolymer (polyquaternium). -22, such as Marquat 280, 295; ONDEO Nalco), dimethyldiallylammonium chloride / acrylamide copolymer (Polyquaternium-7, such as Marquat 550; ONDEO Nalco), etc. preferable.

  As the quaternized polyvinylpyrrolidone derivative, those represented by the following general formula (4) are preferable.

[Wherein, R ⁵ is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R ⁶ , R ⁷ and R ⁸ may be the same or different, and are a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group. , An amidoalkyl group, a cyanoalkyl group, an alkoxyalkyl group or a carboalkoxyalkyl group, Y represents an oxygen atom or an imino group, r represents an integer of 1 to 10, and s and t represent a sum of 20 to 8000. X ⁻ represents the same meaning as described above. ]
The molecular weight of the quaternized polyvinylpyrrolidone derivative used in the present invention is preferably 10,000 to 2,000,000, particularly preferably 50,000 to 1,500,000. Examples of commercially available products include Guff Coat 734, 755, and 755N (hereinafter referred to as IP Japan).

  As the cationized cellulose derivative, for example, those represented by the following general formula (5) are preferable.

[Wherein, A represents a residue of an anhydroglucose unit, f represents an integer of 50 to 20,000, and R ⁹ represents a substituent represented by the following general formula (6). ]

[Wherein R ¹⁰ and R ¹¹ represent an alkylene group having 2 or 3 carbon atoms, g represents an integer of 0 to 10, h represents an integer of 0 to 3, and i represents an integer of 0 to 10] , R ¹² represents an alkylene group having 1 to 3 carbon atoms or a hydroxyalkylene group, R ¹³ , R ¹⁴ and R ¹⁵ may be the same or different and each represents an alkyl group, aryl group or aralkyl group having up to 10 carbon atoms, Moreover, you may form the heterocyclic ring containing the nitrogen atom in a formula. X ⁻ has the same meaning as described above. ]
The cation substitution degree of the cationized cellulose derivative, that is, the average value of h per anhydroglucose unit is preferably 0.01 to 1, particularly 0.02 to 0.5. Moreover, the sum total of g + i is 1-3 on average. If the degree of cation substitution is less than 0.01, it is not sufficient and may exceed 1, but 1 or less is preferable from the viewpoint of reaction yield. The molecular weight of the cationized cellulose derivative used here is preferably 100,000 to 3,000,000. Commercially available products include Leo Guard G, GP (Lion), Polymer JR-125, JR-400, JR-30M, LR-400, LR-30M (Union Carbide). Can be mentioned. Examples of other cationized cellulose derivatives include hydroxyethyl cellulose dimethyl diallylammonium chloride, and examples of commercially available products include Cellcoat H-100 and L-200 (National Starch and Chemical Co., Ltd.).

  These cationic polymers may be used in combination of two or more as the component (C). In addition, the higher the content of component (C), the higher the effect. On the other hand, when the content is too high, the stability becomes poor, and the viscosity of the agent alone or at the time of mixing is reduced. From these points, the content of the component (C) is preferably 0.001 to 20% by weight in the total composition, more preferably 0.01 to 10% by weight, and particularly preferably 0.05 to 5% by weight.

[Component (D) Cationic Surfactant]
The cationic surfactant of the present invention is contained in any one or more of the first agent, the second agent and the third agent for the main purpose of improving the feel of the hair after use. Specifically, mono long-chain alkyltrimethylammonium salts such as behenyltrimethylammonium chloride, dilong-chain alkyldimethylammonium salts such as distearyldimethylammonium chloride, and the like are used.

  In order to make the composition of the present invention contain silicones or higher alcohols to obtain an emulsion, the composition is further non-ionic surfactant, for example, ethoxylation having a linear or branched alkyl group having 12 to 22 carbon atoms. It is preferable to use a higher alcohol, specifically, polyoxyethylene (2-40) alkyl ether or the like in the whole composition at about 1 to 40% by weight, preferably about 2 to 20% by weight. The weight ratio of (cationic surfactant) / (nonionic surfactant + cationic surfactant) is preferably 0.8 or less, more preferably 0.6 or less, and particularly preferably 0.4 or less.

[Higher alcohol]
The composition of the present invention preferably contains a higher alcohol in any one or more of the first agent, the second agent, and the third agent from the viewpoint of improvement in feel and stability. These have the effect of forming a structure with a surfactant to prevent separation and improving the feel during rinsing.

  As the higher alcohol, those having 8 to 22 carbon atoms, particularly 16 to 22 carbon atoms, such as cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, and the like, and mixtures thereof are preferably used, and in particular, behenyl alcohol is used in terms of feel. preferable.

  Two or more higher alcohols may be used in combination, and the content thereof is preferably 0.01 to 20% by weight, particularly 0.1 to 10% by weight, based on the total composition.

The weight ratio of the surfactant to the higher alcohol is 10: 1 to 1:10, preferably 4: 1 to 1: 8, particularly 1: 1 to 1: 4, and a straight chain having 16 to 22 carbon atoms as the higher alcohol. When a saturated higher alcohol is used, the first agent or the second agent before mixing can be creamed.
[Component (E): Oxidative dye intermediate or direct dye]
When the composition of the present invention is a depigmenting agent composition, it contains no dye, and when it is a hair dye composition, the first agent contains an oxidation dye intermediate or a direct dye.

(Oxidized dye intermediate)
As the oxidation dye intermediate, known precursors and couplers usually used in hair dyes can be used. Examples of the precursor 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-acetami Phenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine, 4,5-diamino-1- (4 '-Chlorobenzyl) pyrazole, 4,5-diamino-1-hydroxyethylpyrazole and salts thereof.

  Examples of couplers include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4- (2-hydroxyethylamino) anisole, 2,4-diamino-5-methylphenetole, and 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-metaaminophenol, 2-methyl-4-methoxy-5- (2- Hydroxyethylamino) phenol, 2-methyl-4-fluoro-5-a Nophenol, 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-hydroxybenzomorpholine, 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 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, 2,6-diaminopyridine and these Salts and the like.

  Two or more precursors and couplers may be used in combination, and the content thereof is preferably 0.01 to 5% by weight, particularly preferably 0.1 to 4% by weight, based on the total composition.

(Direct dye)
Examples of direct dyes include nitro dyes, disperse dyes, and basic dyes. Nitro dyes include 2-nitro-paraphenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-parahydroxyethylaminophenol, 4-nitro-orthophenylenediamine, 4-amino-3- Nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC Blue No.2, HC Orange No.1, HC Red No.1, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Red No. 3, N, N-bis- (2-hydroxyethyl) -2-nitro-paraphenylenediamine, etc., and disperse dyes include Disperse Violet 1, Disperse Blue 1, Disperse Black 9 As basic dyes, basic blue 99, basic brown 16, basic brown 17, basic red 76, basic red 51, basic yellow 57, basic yellow 87, Basic Orange 31, etc.

  Two or more direct dyes may be used in combination, or may be used in combination with an oxidation dye intermediate. The content thereof is preferably 0.001 to 5% by weight, particularly 0.01 to 3% by weight in the total composition.

(Ingredient (F) Alkaline agent)
The composition of the present invention contains an alkaline agent in the first agent. Alkaline agents include: ammonia; alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol; alkanediamines such as 1,3-propanediamine; guanidine carbonate, sodium carbonate, carbonic acid Examples thereof include carbonates such as potassium, sodium hydrogen carbonate and potassium hydrogen carbonate. These alkaline agents may be used in combination of two or more, and the content thereof is 0.05% in the total composition from the viewpoint of sufficient decolorization / hair dyeing effect and reduction of hair damage and scalp irritation. To 15% by weight, more preferably 0.1 to 10% by weight, particularly preferably 0.2 to 5% by weight.

  Of the alkaline agents, ammonia and monoethanolamine are preferred. In particular, it is preferable that these alkaline agents coexist with their salts to form a buffer system. As the salts, ammonium carbonate and ammonium hydrogen carbonate are preferable. Furthermore, the content of these is most preferably in the following range.

  The total amount of (a) content when ammonia and its salt are converted as ammonia in the entire composition and (b) content when monoethanolamine and its salt are converted as monoethanolamine is sufficient decolorization -From the point of hair dyeing effect and reduction of hair damage, scalp irritation and olfactory irritation, it is preferably 0.05 to 15% by weight, more preferably 0.1 to 10% by weight, especially 0.2 to 5% in the total composition. It is preferable that it is weight%.

  Moreover, in order to avoid an irritating odor, it is preferable not to use ammonia but to use monoethanolamine. On the other hand, in order to obtain a strong decolorizing power, it is preferable that ammonia and monoethanolamine are used in combination, and the weight ratio of (a) / (b) is 0.01 to 2, more preferably 0.02 to 1, particularly 0.05 to 0.5. .

[Component (G): Hydrogen peroxide]
Hydrogen peroxide is contained in the second agent. The content of hydrogen peroxide is from 0.1 to 12% by weight, more preferably from 0.5 to 9% by weight, particularly from 1 to 12% by weight in the total composition from the viewpoint of sufficient decolorization / hair dyeing effect and reduction of hair damage and scalp irritation. 6% by weight is preferred.

[Medium]
In the composition of the present invention, water and, if necessary, an organic solvent are used as a medium. Examples of the organic solvent include lower alkanols such as ethanol and 2-propanol, and polyols such as propylene glycol, 1,3-butanediol, diethylene glycol, and glycerin.

[Dosage form etc.]
The composition of the present invention is a two-component composition comprising a first agent containing an alkaline agent and a second agent containing an oxidizing agent such as hydrogen peroxide, as well as the currently used oxidative hair dye or decoloring agent. As a three-part type that combines a powdered oxidizer consisting of a granulated product such as persulfate (ammonium persulfate, potassium persulfate, sodium persulfate, etc.) as a third agent for improving the decolorizing power as a mold Provided. The dosage forms of the first agent and the second agent can be, for example, liquid, emulsion, cream, gel, paste, mousse, etc., and can also be aerosol. It is desirable to mix the first agent and the second agent (or the third agent in the case of the three-agent type), and to make the viscosity difficult to spill when applied to the hair, 25 ° C, type B with helical stand The viscosity measured by a rotational viscometer (B8R type viscometer, TOKIMEC) is preferably 2,000 to 100,000 mm ² / s. Here, the viscosity is a value after rotating at 10 rpm for 1 minute using a rotor TC.

  Component (E) dyes and (F) alkaline agent of the present invention are blended in the first agent, and component (G) hydrogen peroxide is blended in the second agent, but other components can be blended in any of them. Good. However, if the component (B) amino-modified silicone is separately mixed with an oily component such as dimethylpolysiloxane and used immediately before use, it is difficult to be restricted by the amount and stability.

[PH]
The pH (25 ° C.) of the composition of the present invention is preferably 8 to 12 for the first agent and 2 to 5 for the second agent. The total composition at the time of use (mixing) is decolorization / hair dyeing effect and skin. From the point of irritation, 8 to 12, particularly 8 to 10 is preferable. As a pH adjuster, in addition to the above alkaline agents, inorganic acids such as hydrochloric acid and phosphoric acid, organic acids such as citric acid, glycolic acid and lactic acid, hydrochlorides such as monoethanolamine hydrochloride, monopotassium dihydrogen phosphate, Examples thereof include phosphates such as disodium monohydrogen phosphate.

[Other optional ingredients]
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the composition of the present invention. Such optional components include hydrocarbons, animal and vegetable oils and fats, higher fatty acids, natural or synthetic polymers other than component (B), ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents. , Stabilizers, antioxidants, botanical extracts, herbal extracts, vitamins, fragrances, UV absorbers.

[Treatment method]
In order to dye or decolorize hair using the composition of the present invention, for example, the first agent and the second agent (or the third agent in the case of the three-component type) of the composition of the present invention are mixed immediately before use. Then, it may be applied to the hair, left for a predetermined time, rinsed and dried. The application temperature to the hair is preferably 15 to 45 ° C., the application time is 3 to 45 minutes, more preferably 5 to 30 minutes, and particularly preferably 10 to 30 minutes. In this case, the oxidative hair coloring or decoloring composition is first washed lightly with water, then washed with a shampoo containing an anionic surfactant, and then washed with water. It remains on the hair and shows a good conditioning effect. As the shampoo, a general aqueous shampoo containing about 5 to 20% by weight of an anionic surfactant such as sodium lauryl ethoxy (1-3) sulfate is suitable.

  According to a conventional method, an oxidation hair dye first agent shown in Table 1 and an oxidation hair dye second agent shown in Table 2 were prepared.

1 part by weight of each first agent and 1.5 parts by weight of each second agent of Example 1 and Comparative Example 1 are mixed and applied to a Japanese black hair tress at a bath ratio of 1: 1, and at 25 ° C. for 15 minutes. After leaving, the hair was washed with a commercial shampoo, then washed with water, dried with towel, and then naturally dried. As a result, when Example 1 was used, no irritating odor was felt and the hair was dyed light brown. Comparative Example 1 Compared with the use of shampoo, the finger was better when rinsing the shampoo and it had a smooth feel.

Claims (3)

A composition in which a first agent containing an alkali agent and a second agent containing hydrogen peroxide are mixed immediately before use, and the following components (A) to (G) are added to the composition after mixing:
(A) Organic solvent having an octanol-water-partition coefficient (logP) of 0.3-6 at 25 ° C. and a molecular weight of 200 or less
(B) Amino-modified silicone
(C) Cationic polymer
(D) Cationic surfactant
(E) Oxidative dye intermediate or direct dye (not included in the case of decolorizing agent)
(F) Alkaline agent
(G) An oxidation hair coloring or decoloring composition containing hydrogen peroxide.   The oxidative hair coloring or decoloring composition according to claim 1, wherein ammonia is not contained as an alkaline agent, and the pH of the composition after mixing is 8 to 12. Furthermore, the oxidative hair dyeing or decoloring composition of Claim 1 or 2 containing a higher alcohol.