JP5379942B2 - Decolorant composition and hair dye composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a decoloring agent composition having reduced irritating odor and capable of imparting sufficient brightness to the hair, and further to obtain a hair dye composition. SOLUTION: The decoloring agent composition usable by being mixed with an oxidizing agent contains (a) ammonia in an amount of 1.0-3.5 wt.% expressed in terms of 28 wt.% ammonia water, (b) 2.0-6.0 wt.% monoethanolamine, (c) 1.5-10.0 wt.% single nonionic surfactant, or surfactants consisting of 1.5-10.0 wt.% nonionic surfactant and <=1.5 wt.% cationic surfactant, (d) a higher alcohol, (e) an oily component, and (f) water. The hair dye composition contains (g) a dye besides the components. The decoloring composition and the hair dye composition are constituted so as to be each an oil-in-water type emulsion, and so as to contain each a crystal structure.

Description

  The present invention relates to a depigmenting composition and a hair dye composition that can reduce an irritating odor and can impart sufficient brightness to hair.

  Conventionally, this type of depigmenting agent composition contains an alkali agent for promoting the action of the oxidizing agent. Specific examples of the alkali agent include ammonia, alkanolamines, organic amines, etc., but ammonia is generally used. For this reason, in order to reduce the irritating odor of the bleaching agent composition based on the ammonia odor, monoethanolamine may be contained instead of ammonia. And by reducing the content of ammonia, the irritating odor of the decoloring agent composition is reduced, and lightness is imparted to the hair.

  On the other hand, the hair dye composition is known as a two-component oxidative hair dye comprising a first agent containing an oxidative dye intermediate as a dye and an alkali agent, and a second agent containing an oxidant. Yes. The alkaline agent is blended to swell the hair so that the dye and the oxidizing agent can easily penetrate into the hair and to promote the action of the oxidizing agent. Specific examples of the alkali agent include those described in the decoloring agent composition, but ammonia is generally used in the same manner as the decoloring agent composition. For this reason, in order to reduce the irritating odor of the hair dye composition based on the ammonia odor, monoethanolamine may be contained instead of ammonia in the same manner as the decoloring agent composition. And by reducing the content of ammonia, the irritating odor of the hair dye composition is reduced, and lightness is imparted to the hair.

Problems to be solved by the invention

  However, the conventional depigmenting agent composition and hair dye composition have problems that the irritating odor cannot be sufficiently reduced and sufficient brightness cannot be imparted to the hair.

  The present invention has been made paying attention to the problems existing in the prior art as described above. The object is to provide a depigmenting agent composition and a hair dye composition that can reduce the irritating odor and can impart sufficient lightness to the hair.

Means for solving the problem

[Means for Solving the Problems]
In order to achieve the above object, the decoloring composition of the invention described in claim 1 is a decoloring composition used by mixing with an oxidizing agent, wherein the decoloring composition comprises: (B) 2.0 to 6.0% by weight of monoethanolamine, (c) 1.5 to 10%, when converted to 28% by weight of ammonia water. .0 wt% of Mika et constituted surfactant of nonionic surfactant, (d) 1.0 to 20 wt% of a higher alcohol, (e) 1.0 to 20 wt% of the oil component and ( f) contains water, (c) the nonionic surfactant contains polyoxyethylene monostearate, and (d) the higher alcohol has a linear alkyl group having 18 or more carbon atoms. .

The hair dye composition of the invention described in claim 2 is a hair dye composition used by mixing with an oxidizing agent, and the hair dye composition comprises: (a) 28% by weight ammonia water (B) 2.0 to 6.0% by weight of monoethanolamine, (c) 1.5 to 10.0% by weight of non-ammonia Mika et constituted surfactants of the ionic surfactant, (d) 1.0 to 20 wt% of a higher alcohol, (e) 1.0 to 20% by weight of oil component, (f) water and (g ) A dye, (c) the nonionic surfactant contains polyoxyethylene monostearate, and (d) the higher alcohol has a linear alkyl group having 18 or more carbon atoms.

The hair dye composition of the invention according to claim 3 is the invention according to claim 2, wherein the component (e) is a highly polymerized silicone having an average degree of polymerization of 650 to 10,000.

The hair dye composition of the invention described in claim 4 contains the liquid crystal structure in the invention of claim 2 or claim 3 .

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described.

  The decolorizing agent composition of the first embodiment includes ammonia, monoethanolamine, a nonionic surfactant alone, or a surfactant composed of a nonionic surfactant and a cationic surfactant. An agent, a higher alcohol, an oil component, and water are contained. And when decolorizing hair, it mixes with an oxidizing agent.

  The oxidizing agent is blended for decolorizing melanin contained in the hair. Specific examples of the oxidizing agent include hydrogen peroxide. The blending amount of the oxidizing agent in the mixed solution obtained by mixing the decolorizing agent composition and the oxidizing agent is preferably 0.1 to 5% by weight, more preferably 1 to 3% by weight. If it is less than 0.1% by weight, melanin cannot be sufficiently decolorized. On the other hand, when it exceeds 5% by weight, defects such as damage are likely to occur in the hair.

  Subsequently, ammonia is blended to promote the action of the oxidant. The amount of ammonia added when converted to 28% by weight of ammonia water is 1.0 to 3.5% by weight, preferably 1.5 to 2.8% by weight, more preferably 2.0 to 2.6% by weight. %. If it is less than 1.0% by weight, the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if it exceeds 3.5% by weight, the irritating odor of the decolorizer composition cannot be reduced.

  Monoethanolamine is blended in order to impart lightness to hair by reducing the irritating odor of the decoloring composition by blending in place of ammonia and promoting the action of the oxidizing agent. In addition, alkanolamines other than monoethanolamine cannot give sufficient brightness to hair. The amount of monoethanolamine is 2.0 to 6.0% by weight, preferably 3.0 to 4.5% by weight, and more preferably 3.2 to 4.0% by weight. If it is less than 2.0% by weight, the action of the oxidizing agent cannot be promoted. On the other hand, if it exceeds 6.0% by weight, the hair will become stiff and squeaky when the decolorizing solution is flowed after decolorization. Furthermore, after the hair is dried (hereinafter referred to as dry), the hair feels stiff and the combing becomes worse. Moreover, if hair decoloration is repeated continuously, the stiffness of the hair and the badness of combing increase.

  The nonionic surfactant constituting the surfactant is an irritating odor of the decoloring agent composition by constituting an oil-in-water (O / W) emulsion with a higher alcohol, an oil component, and water, which will be described later. It is blended to further reduce Furthermore, it mix | blends in order to further reduce the irritating odor of a decoloring agent composition by forming a liquid-crystal structure with the higher alcohol mentioned later and water, and incorporating an odor component in a liquid-crystal structure. For this reason, the decoloring agent composition of 1st Embodiment contains the liquid crystal structure. The liquid crystal structure can be confirmed with a polarization microscope. Specific examples of the nonionic surfactant include polyoxyethylene (hereinafter referred to as POE) cetyl ether, POE stearyl ether, POE behenyl ether, POE oleyl ether, POE lauryl ether, POE octyldodecyl ether, POE hexyl decyl ether. Ether type nonionic surfactants such as POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, monooleic acid POE sorbitan, monostearic acid POE sorbitan, monopalmitic acid POE sorbitan, monolauric acid POE sorbitan, trio POE sorbitan oleate, POE glyceryl monostearate, POE glyceryl monomyristic acid, POE sorbit tetraoleate, P-hexa stearic acid P E sorbite, POE sorbite monolaurate, POE sorbite beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol monolaurate, glycerin monooleate, glycerin monostearate, self-emulsifying monostearate Glyceric acid, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate, monoolein And ester-type nonionic surfactants such as decaglyceryl acid and decaglyceryl monomyristate. Among these, ester-type nonionic surfactants are preferable because the effect of reducing the irritating odor of the decoloring agent composition is high. The compounding amount of the nonionic surfactant is 1.5 to 10.0% by weight, preferably 1.5 to 5.0% by weight, and more preferably 2.5 to 4.0% by weight. When the blending amount is less than 1.5% by weight and more than 10.0% by weight, the irritating odor of the decolorizer composition cannot be reduced.

  Moreover, the cationic surfactant which comprises surfactant is mix | blended in order to make the feel of hair favorable. Specific examples of the cationic surfactant include alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, lauryltrimethylammonium bromide, dialkyldimethylammonium chloride and the like. A quaternary ammonium salt etc. are mentioned. The compounding amount of the cationic surfactant is 1.5% by weight or less, preferably 1.0% by weight or less, more preferably 0.3% by weight or less. If it exceeds 1.5% by weight, the irritating odor of the decolorizer composition cannot be reduced.

  The higher alcohol is an oil-in-water emulsion comprising a nonionic surfactant, an oil component described later, and water to further reduce the irritating odor of the decolorizer composition and emulsify the decolorizer composition. It is blended to assist. Further, it is formulated to further reduce the irritating odor of the decolorizer composition by forming a liquid crystal structure with a nonionic surfactant and water and incorporating an odor component into the liquid crystal structure. Specific examples of the higher alcohol include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-octyldodecanol and the like. Among these, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, and behenyl alcohol, which are linear higher saturated alcohols, are preferable because they have a high emulsification assist effect. Among these, a higher alcohol having a linear alkyl group having 18 or more carbon atoms is preferable because the effect of reducing the irritating odor of the decoloring agent composition is high. Specific examples of the higher alcohol having a linear alkyl group having 18 or more carbon atoms include stearyl alcohol and behenyl alcohol. These higher alcohols may be blended singly or in combination of two or more.

  The oil component comprises an oil-in-water emulsion with a nonionic surfactant, a higher alcohol, and water, which will be described later, to further reduce the irritating odor of the decolorizer composition and improve the feel of the hair. It is blended to do. Specific examples of the oil component include oils such as avocado oil, jojoba oil, macadamian nut oil, glyceride of olive oil, waxes such as beeswax and lanolin, hydrocarbons such as liquid paraffin, solid paraffin, isoparaffin and squalane, Esters such as isopropyl myristate and octyldodecyl myristate, dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, highly polymerized silicone having an average polymerization degree of 650 to 10,000, silicones such as amino-modified silicone, lauric acid, Examples include fatty acids such as myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, hydroxystearic acid, undecylenic acid, isostearic acid, linoleic acid, and linolenic acid. Among these, a highly polymerized silicone having an average degree of polymerization of 650 to 10,000 is preferable because it has a high effect of improving hair feel. When the average degree of polymerization of the highly polymerized silicone is less than 650 and exceeds 10,000, the hair feel cannot be sufficiently improved. Specific examples of the highly polymerized silicone include highly polymerized methylpolysiloxane having an average degree of polymerization of 650 or more, and highly polymerized methylpolysiloxane having an average degree of polymerization of 7000. These oil components may be blended singly or in combination of two or more.

  The blending amount of the higher alcohol and the oil component is preferably 1.0 to 20% by weight, and more preferably 3.0 to 12% by weight. When less than 1.0% by weight and more than 20% by weight are blended, it is difficult to ensure the emulsion stability of the decolorizer composition.

  Water is blended to form an oil-in-water emulsion with a nonionic surfactant, a higher alcohol, and an oil component to further reduce the irritating odor of the decolorizer composition. Furthermore, it is blended in order to further reduce the irritating odor of the decolorizer composition by forming a liquid crystal structure with a nonionic surfactant and a higher alcohol and incorporating an odor component into the liquid crystal structure. The amount of water is preferably 50 to 90% by weight, more preferably 70 to 85% by weight. The range of the amount of water includes the weight ratio of water contained in 28% by weight of ammonia water when ammonia is formulated as 28% by weight of ammonia water. If it is less than 50% by weight, a liquid crystal structure cannot be formed, and therefore it is difficult to reduce the irritating odor of the decolorizer composition. On the other hand, if it exceeds 90% by weight, it is difficult to ensure the emulsion stability of the decolorizer composition.

  The viscosity of the decolorizer composition is preferably 10,000 to 50,000 millipascal seconds (mPa · s). When it is less than 10,000 millipascal seconds, the mixing viscosity becomes small, and dripping or scattering is likely to occur during the decoloring operation. On the other hand, when it is longer than 50000 millipascal seconds, the mixing property of the decoloring agent composition decreases, or the viscosity of the mixed solution becomes too high to be uniformly applied to the hair. Unevenness is likely to occur.

  In the depigmenting agent composition of the first embodiment, as other additive components, saccharides such as alkaline agent, sorbitol and maltose, polyhydric alcohols such as propylene glycol, 1,3-butanediol, dipropylene glycol and glycerin, Alkylglyceryl ethers such as batyl alcohol and chimyl alcohol, gum arabic, sodium alginate, xanthan gum, cellulose derivatives, natural or synthetic polymers such as crosslinked polyacrylic acid, preservatives such as parabens, chelating agents such as EDTA-Na, Stabilizers such as phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, pH adjusters such as phosphoric acid, citric acid, sulfuric acid, acetic acid, lactic acid, tartaric acid, plant extracts, crude drugs Extracts, vitamins, fragrances, UV absorbers And "quasi-drug material Standard" (issued June 1991, Yakujinipposha) may be blended at least one selected from those listed in. The compounding amount of the other additive components is determined according to a conventional method for the decolorizing agent composition.

  The alkaline agent is blended to impart lightness to the hair by promoting the action of the oxidizing agent, like monoethanolamine. Specific examples of the alkali agent include alkanolamines (diethanolamine, etc.), organic amines (2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkalis (sodium hydroxide, potassium hydroxide, Sodium carbonate, potassium carbonate, etc.), basic amino acids (arginine, lysine, etc.) and their salts. These alkaline agents may be blended singly or in combination of two or more. Moreover, you may give a buffering effect to a decoloring agent composition by mix | blending an appropriate combination of 2 or more types of alkali agents. The blending amount of the alkaline agent is such an amount that the pH of the decolorizer composition is preferably 8-12. If the pH of the decolorizer composition is less than 8, the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if it exceeds 12, defects such as damage are likely to occur in the hair when decolorizing.

The fragrance | flavor is mix | blended in order to further reduce the irritating odor of a decoloring agent composition. Specific examples of the fragrances include 3α, 6,6,9α-tetramethyldodecahydronaphtho [2,1-b] furan, anethole, auranthiol, dimethol, cyclohexyl n-butyrate, dihydrorose oxide, estragole, ethyl Amyl ketone, ethyl tricyclo [5.2.1.0 ^2,6 ] decan-2-ylcarboxylate, linalool, lavandulol, ethyl-2-methylpentanoate, methylanthranilate, methylionone G, l -Menthol, p-cresol and p-cresyl acetate, p-cymene, terpinolene, α-terpinene, γ-terpinene, α-ferrandylene, myrcene, camphene, osmene and other hydrocarbon terpenes, heptanal, octanal, benzaldehyde, salicin Silicaldehyde, pheny Acetaldehyde, citronellal, hydrotropic aldehyde, ligustral (2,4-dimethyl-3-cyclohexenylcarboxaldehyde), citral, α-hexylcinnamic aldehyde, α-aminocinnamic aldehyde, lyial (p-tert-butyl-α- Methyl-hydrocinnamic aldehyde), cyclamenaldehyde (p-isopropyl-α-methyl-hydrocinnamic aldehyde), laral ((4-hydroxy-4-methylpentyl) -3-cyclohexene-1-carboxaldehyde), heliotropin Aldehydes such as anisaldehyde, helional, vanillin, ethyl vanillin, ethyl formate, methyl acetate, ethyl acetate, methyl propionate, diacetyl, methyl Luisobutyrate, ethyl isobutyrate, ethyl butyrate, propyl butyrate, isobutyl acetate, isobutyl isobutyrate, isobutyl butyrate, isobutyl isovalerate, isoamyl acetate, isoamyl propionate, amyl propionate, amyl isobutyrate, Amyl butyrate, amyl isovalate, allyl hexanoate, ethyl acetoacetate, ethyl heptylate, heptyl acetate, methyl benzoate, ethyl benzoate, ethyl octylate, styryl acetate, benzyl acetate, nonyl acetate, boronyl acetate, Diethyl phthalate, linalyl benzoate, ethyl cinnamate, hexyl salicylate, methynyl acetate, terpinyl acetate, anisyl acetate , Phenylethyl isobutyrate, methyl dihydrojasmonate, γ-undecalactone, γ-nonyllactone, esters such as coumarin, anisole, p-cresylmethyl ether, dimethylhydroquinone, methyleugenol, β-naphtholmethyl Ether, β-naphthol ethyl ether, anethole, thymol, diphenyl oxide, galaxolide (1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-γ Ethers such as -2-benzopyran), isopropyl alcohol, cis-3-hexenol, heptanol, 2-octanol, propylene glycol, benzyl alcohol, citronellol, geraniol, terpineol, tetrahydrogeraniol, anisal , Alcohols such as phenylethyl alcohol, menthone, acetophenone, α- or β-damascone (2,6,6-trimethyl-trans-1-crotonyl-cyclohexene-1 or −2), α- or β-damasenone , Α-, β- or γ-ionone, α-, β- or γ-methylyonone, methyl-β-naphthylketone, benzophenone, tentarom (7-acetyl-1,1,3,4,4,6-hexamethyl Tetrahydronaphthalene), methyl cedrin, α- or β-isomethyl ionone, α-, β- or γ-iron, maltol, ethyl maltol, cis-jasmon, dihydrojasmon, 1-carvone and the like. Among these, 3α, 6,6,9α-tetramethyldodecahydronaphtho [2,1-b] furan, anethole, auranthiol, dimethylol, cyclohexyl n-butyrate, dihydrorose because of its high irritating odor reduction effect Oxide, estragole, ethyl amyl ketone, ethyl tricyclo [5.2.1.0 ^2,6 ] decan-2-ylcarboxylate, linalool, lavandulol, ethyl-2-methylpentanoate, methylanthrani Rate, methyl ionone G, 1-menthol, p-cresol and p-cresyl acetate are preferred. These fragrance | flavors may be mix | blended independently and may be mix | blended in combination of 2 or more types.

According to the first embodiment described in detail above, the following effects are exhibited.
-In the decolorizing agent composition of 1st Embodiment, (a) Ammonia which becomes 1.0 to 3.5 weight% when converted into 28 weight% ammonia water, (b) 2.0 to 6 0.0% by weight of monoethanolamine, (c) 1.5 to 10.0% by weight of nonionic surfactant only, or 1.5 to 10.0% by weight of nonionic surfactant and 1 A surfactant composed of 5% by weight or less of a cationic surfactant, (d) a higher alcohol, (e) an oily component, and (f) water. And this decoloring agent composition is comprised as a oil-in-water type emulsion by the nonionic surfactant of a component (c), a component (d), a component (e), and a component (f). Yes. For this reason, while reducing the content of ammonia of a component (a) and becoming difficult to volatilize ammonia, the irritating odor of a decoloring agent composition can be reduced. Furthermore, lightness can be provided to hair by containing a component (b).

-In the decoloring agent composition of 1st Embodiment, the oil-based component is contained. For this reason, the touch of hair can be made favorable.
In the depigmenting agent composition of the first embodiment, by setting the viscosity in the range of 10,000 to 50,000 millipascal seconds (mPa · s), dripping or scattering occurs when performing a decoloring operation. Can be prevented. Furthermore, the hair can be decolorized by preventing the mixing of the components blended in the depigmenting agent composition from decreasing or preventing the liquid mixture from becoming too viscous to be uniformly applied to the hair. It is possible to prevent unevenness from occurring.

  -In the decoloring agent composition of 1st Embodiment, a liquid crystal structure is formed by containing a nonionic surfactant, a higher alcohol, and water, and an odor component is integrated in a liquid crystal structure. As a result, the irritating odor of the decoloring agent composition can be further reduced.

-In the decoloring agent composition of 1st Embodiment, the compounding quantity of monoethanolamine is 2.0 to 6.0 weight%. For this reason, the brightness of hair can be imparted by promoting the action of the oxidizing agent. Further, when the decolorizing solution is flowed after decolorization, it is possible to prevent the hair from becoming stiff and squeaky. Furthermore, after drying, it is possible to prevent the hair feeling from becoming stiff and the combing from getting worse. Moreover, even if the decolorization process of hair is repeated continuously, the feel of hair can be maintained satisfactorily.
(Second Embodiment)
Next, a second embodiment of the present invention will be described. In addition, about 2nd Embodiment, it demonstrates centering on a different point from 1st Embodiment.

  The hair dye composition of the second embodiment is composed of a dye, ammonia, monoethanolamine, a nonionic surfactant alone, or a nonionic surfactant and a cationic surfactant. A surfactant, a higher alcohol, an oily component, and water are contained. And when dyeing hair, it mixes with an oxidizing agent.

  The dye is formulated for dyeing hair. Specific examples of the dye include an oxidation dye intermediate and a direct dye. The oxidation dye intermediate dyes hair by being oxidized by an oxidizing agent. Specific examples of the oxidation dye intermediate include phenylenediamines, aminophenols, toluylenediamine, aminonitrophenols, diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines, and their Examples thereof include salts such as hydrochloride, sulfate, and acetate. Among these, since the hair dyeing power is strong, paraphenylenediamine, paratoluylenediamine, N, N-bis (2-hydroxyethyl) -paraphenylenediamine, N-phenyl-paraphenylenediamine, 4,4′- Diaminodiphenylamine, 2-chloroparaphenylenediamine, N, N-dimethylparaphenylenediamine, paraaminophenol, 2,6-dichloroparaphenylenediamine, paraaminophenylsulfamic acid, and salts thereof are preferred. These oxidation dye intermediates may be blended alone or in combination of two or more. The amount of the dye is preferably 0.01 to 15% by weight. If it is less than 0.01% by weight, it is difficult to obtain sufficient hair coloring power. On the other hand, even if it exceeds 15% by weight, it is difficult to obtain a higher hair dyeing power.

  Moreover, when the oxidation dye intermediate is blended as the dye, the blending amount of the oxidation dye intermediate is preferably 0.01 to 15% by weight, more preferably 0.1 to 10% by weight. If it is less than 0.01% by weight, it is difficult to obtain sufficient hair dyeing power. On the other hand, even if it exceeds 15% by weight, it is difficult to obtain a higher hair dyeing power. Further, by adding 0.01 to 10% by weight of the oxidative dye intermediate and 0.001 to 15% by weight of the direct dye, it is possible to further improve dyeing and dyeability.

  Subsequently, the oxidizing agent is blended for decolorizing melanin contained in the hair and oxidizing a dye such as an oxidation dye intermediate. Specific examples and blending amounts of the oxidizing agent are the same as the decoloring agent composition of the first embodiment. If the amount is less than 0.1% by weight, melanin cannot be sufficiently decolored and the dye cannot be sufficiently oxidized. On the other hand, when it exceeds 5% by weight, defects such as damage are likely to occur in the hair.

  Ammonia is added to swell the hair so that the dye and the oxidant can easily penetrate into the hair and promote the action of the oxidant. The specific example and compounding quantity of ammonia are the same as the decoloring agent composition of 1st Embodiment. The amount of ammonia when converted to 28% by weight of ammonia water is less than 1.0% by weight, so that the hair cannot be sufficiently swollen and the action of the oxidizing agent cannot be sufficiently promoted. . On the other hand, if it exceeds 3.5% by weight, the irritating odor of the hair dye composition cannot be reduced.

  Monoethanolamine is blended in place of ammonia to reduce the irritating odor of the hair dye composition, and also swells the hair to facilitate penetration of the dye and oxidizing agent into the hair. It is blended in order to impart lightness to the hair. The blending amount of monoethanolamine is the same as that of the decoloring agent composition of the first embodiment. If the amount of monoethanolamine is less than 2.0% by weight, the hair cannot swell and the action of the oxidizing agent cannot be promoted. Furthermore, lightness cannot be imparted to the hair. On the other hand, if it exceeds 6.0% by weight, the hair will become stiff and squeaky when the dyeing solution is run after hair dyeing (hereinafter referred to as plain rinse). Furthermore, after drying, the hair feels stiff and the combing becomes worse. In addition, if hair is continuously dyed, the stiffness of the hair and the badness of combing increase.

  The nonionic surfactant constituting the surfactant is an oil-in-water emulsion composed of a higher alcohol, an oil component, and water, which will be described later, to further reduce the irritating odor of the hair dye composition. It is blended. Furthermore, it mix | blends in order to further reduce the irritating odor of the hair dye composition by forming a liquid crystal structure with a higher alcohol and water, which will be described later, and incorporating odor components into the liquid crystal structure. For this reason, the hair dye composition of the second embodiment contains a liquid crystal structure. The liquid crystal structure can be confirmed with a polarization microscope. The specific example and compounding quantity of a nonionic surfactant are the same as the decoloring agent composition of 1st Embodiment. In addition, when the compounding quantity of a nonionic surfactant is less than 1.5 weight% and 10.0 weight%, the irritating odor of a hair dye composition cannot be reduced.

  Moreover, the cationic surfactant which comprises surfactant is mix | blended in order to make the feel of hair favorable. The specific example and compounding quantity of a cationic surfactant are the same as the decoloring agent composition of 1st Embodiment. In addition, when the compounding quantity of a cationic surfactant exceeds 1.5 weight%, the irritating odor of a hair dye composition cannot be reduced.

  The higher alcohol is an oil-in-water emulsion composed of a nonionic surfactant, an oil component described later, and water to further reduce the irritating odor of the hair dye composition, and the hair dye composition Is added to assist emulsification. Furthermore, it is blended to further reduce the irritating odor of the hair dye composition by forming a liquid crystal structure with a nonionic surfactant and water, which will be described later, and incorporating an odor component into the liquid crystal structure. . Specific examples of the higher alcohol are the same as those of the decoloring agent composition of the first embodiment. In addition, the oil component comprises an oil-in-water emulsion with a nonionic surfactant, a higher alcohol, and water to be described later to further reduce the irritating odor of the hair dye composition and to feel the hair. It is blended to improve the quality. Specific examples of the oil component are the same as those of the decolorizer composition of the first embodiment. The compounding quantity of a higher alcohol and an oil-based component is the same as the decoloring agent composition of 1st Embodiment. In addition, when the compounding quantity of a higher alcohol and an oil-based component is less than 1.0 weight% and exceeds 20 weight%, it is difficult to ensure the emulsification stability of a hair dye composition.

  Water is blended to form an oil-in-water emulsion with a nonionic surfactant, a higher alcohol, and an oil component to further reduce the irritating odor of the hair dye composition. Furthermore, it is blended to further reduce the irritating odor of the hair dye composition by forming a liquid crystal structure with a nonionic surfactant and a higher alcohol and incorporating an odor component into the liquid crystal structure. The amount of water is the same as that of the decolorizing agent composition of the first embodiment. If the amount is less than 50% by weight, the liquid crystal structure cannot be formed, so that it is difficult to reduce the irritating odor of the hair dye composition. On the other hand, if it exceeds 90% by weight, it is difficult to ensure the emulsion stability of the hair dye composition.

  The viscosity of the hair dye composition is preferably 10,000 to 50,000 millipascal seconds (mPa · s). When it is less than 10,000 millipascal seconds, the mixing viscosity becomes small, and dripping or scattering is likely to occur during the hair dyeing operation. On the other hand, if it is longer than 50000 millipascal seconds, the mixing property of the hair dye composition is lowered, or the viscosity of the mixed solution becomes too high to be uniformly applied to the hair. Unevenness is likely to occur.

  In addition to those listed in the first embodiment, the hair dye composition of the second embodiment may be blended with natural dyes and pigments as other additive components. The blending amounts of these other additive components are determined in accordance with a conventional method for hair dye compositions.

  Alkaline agents, like monoethanolamine, are formulated to swell the hair and allow the dyes and oxidants to penetrate the hair more easily, and to promote the action of the oxidizers to impart lightness to the hair. ing. The specific example and compounding quantity of an alkali agent are the same as the decoloring agent composition of 1st Embodiment. If the pH of the hair dye composition is less than 8, the hair cannot be sufficiently swollen and the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if it exceeds 12, defects such as damage are likely to occur when hair is dyed.

The fragrance | flavor is mix | blended in order to further reduce the irritating odor of the hair dye composition. The specific example of the fragrance | flavor is the same as the decoloring agent composition of 1st Embodiment.
According to the second embodiment described in detail above, the following effects are exhibited.

-In the hair dye composition of 2nd Embodiment, hair can be dye | stained to a various color tone by mix | blending an oxidation dye intermediate as a dye.
-In the hair dye composition of 2nd Embodiment, the compounding quantity of monoethanolamine is 2.0 to 6.0 weight%. For this reason, while being able to swell hair, the brightness can be provided to hair by promoting the effect | action of an oxidizing agent. Furthermore, it is possible to prevent the hair from becoming stiff and squeaky during plain rinse. In addition, after drying, it is possible to prevent the feel of the hair from becoming stiff and the combing from getting worse. Furthermore, even if hair is continuously dyed, the feel of the hair can be maintained well.

In addition, the said embodiment can also be changed and comprised as follows.
-In the decoloring agent composition of the said 1st Embodiment, you may comprise so that it may mix and use with the oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. Also when comprised in this way, the stimulating odor of a decoloring agent composition can be reduced by containing a nonionic surfactant. Moreover, the touch of hair can be made favorable by containing a cationic surfactant.

  -In the hair dye composition of said 2nd Embodiment, you may comprise so that it may be mixed and used for the oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. Also when comprised in this way, the irritating odor of a hair dye composition can be reduced by containing a nonionic surfactant. Moreover, the touch of hair can be made favorable by containing a cationic surfactant.

  -The decoloring agent composition of the first embodiment may further contain at least one of potassium carbonate and guanidine carbonate. When comprised in this way, the brightness can be provided more to hair.

  -The hair dye composition of the second embodiment may further contain at least one of potassium carbonate and guanidine carbonate. When comprised in this way, the brightness can be provided more to hair.

【Example】
Next, the embodiment will be described more specifically with reference to examples and comparative examples.
(Examples 1, 2, 6 to 9, Reference Examples 3 to 5 and Comparative Examples 1 to 9)
As examples shown in Tables 1 and 2, the first agent and the second agent were prepared as examples of the two-component type decoloring agent composition. In addition, the 2nd agent of each example was adjusted to pH 3 with phosphoric acid after preparation. The numerical values in Tables 1 and 2 are expressed in wt%.

About the decoloring agent composition of each example of Table 1 and Table 2, after mixing the 1st agent and the 2nd agent, it apply | coated to the hair | bristle bundle. At this time, each example is an oil-in-water emulsion and is in a creamy form. And about the item of the following (1)-(4), it evaluated about the decoloring agent composition and the hair bundle after a decoloring process. The evaluation results are shown in Tables 3 and 4.

(1) Stimulating odor Smell the odor of the bleaching agent composition, there is no irritating odor (5), there is almost no irritating odor (4), there is a little irritating odor (3), there is a little irritating odor (2), Sensory evaluation was performed in five stages (1) with an irritating odor.

(2) Lightness The hair bundle after decoloring treatment was visually observed, and regarding the lightness of decolorization, excellent lightness (5), good lightness (4), lightness was slightly insufficient (3), lightness was slightly insufficient (2) Sensory evaluation was performed in five stages, with insufficient brightness (1).

(3) Touch The touch when the hair bundle after decoloring treatment was touched with a hand was subjected to sensory evaluation in four stages: excellent (）), good (◯), slightly defective (Δ), and defective (×).

(4) Degree of hair damage The hair bundle after the decolorization treatment was evaluated for the lift of the cuticle using a scanning electron microscope. That is, using a sample hair bundle in which a knot is formed at a portion of 20 to 30 mm from the root of the hair after decoloring treatment, the cuticle shows how the cuticle floats in the knot phase when the knot of the sample hair bundle is pulled under a certain condition. Almost does not float, very little damage (◎), only a part of the outermost layer of the cuticle is lifted, there is little damage (○), the outermost layer of the cuticle is lifted as a whole, there is some damage ( (Triangle | delta), Most of the cuticles rose and it evaluated in four steps of damage (x).

In Examples 1, 2, 6 to 9, and Reference Examples 3 to 5 , as shown in Table 3, the deodorant composition was evaluated to have no irritating odor or almost no irritating odor. Further, the lightness was evaluated as excellent lightness or good lightness, and the touch was evaluated as excellent, good, or slightly poor. Furthermore, regarding the degree of hair damage, it was evaluated that only a part of the outermost layer of the cuticle was lifted and the damage was small, or the outermost layer of the cuticle was lifted as a whole, and the damage was somewhat.

  On the other hand, as shown in Table 4, Comparative Example 1 was evaluated as insufficient in brightness because the blending amount of monoethanolamine was less than 2.0% by weight, and Comparative Example 2 was blended with 28% by weight ammonia water. Therefore, the brightness was evaluated as slightly insufficient. Further, Comparative Example 3 was evaluated as having a slightly irritating odor because the cationic surfactant was blended in excess of 1.5% by weight, and Comparative Example 4 was blended with diethanolamine instead of monoethanolamine. Therefore, the lightness was evaluated as insufficient. Furthermore, Comparative Example 5 and Comparative Example 6 were each evaluated as having an irritating odor because an anionic surfactant or an amphoteric surfactant was blended in addition to the nonionic surfactant. Comparative Example 7 and Comparative Example 8 are evaluated as having a little or no irritating odor because the nonionic surfactant is blended in less than 1.5% by weight or more than 10.0% by weight. It was. Further, Comparative Example 9 was evaluated as having an irritating odor because 28 wt% aqueous ammonia was added in an amount exceeding 3.5 wt%.

(Examples 10, 11, 15 to 18, Reference Examples 12 to 14 and Comparative Examples 10 to 18)
Each example as a two-pack type hair dye composition prepared the first agent and the second agent as shown in Table 5 and Table 6. In addition, the 2nd agent of each example was adjusted to pH 3 with phosphoric acid after preparation. In addition, the numerical values in Tables 5 and 6 are expressed in wt%.

About the hair dye composition of each example of Table 5 and Table 6, after mixing the 1st agent and the 2nd agent, it applied to the hair bundle. At this time, each example is an oil-in-water emulsion and is in a creamy form. And about the following (5)-(9) evaluation was performed about the hair dye composition and the hair bundle after a hair dyeing process. The evaluation results are shown in Table 7 and Table 8.

(5) Stimulating odor Smell the odor of the hair dye composition, no irritating odor (5), almost no irritating odor (4), little irritating odor (3), slightly irritating odor (2) The sensory evaluation was performed in five stages (1) with an irritating odor.

(6) Lightness The hair bundle after the hair dyeing treatment is visually observed, and regarding the lightness of decolorization, excellent lightness (5), good lightness (4), lightness is slightly insufficient (3), and lightness is slightly unsatisfactory. Sensory evaluation was performed in five stages, sufficiently (2) and insufficient in brightness (1).

(7) Dyeability The hair bundle after the hair dyeing treatment is visually observed, and the dyeability of the hair dye composition is excellent in dyeability (◎), good dyeability (◯), and slightly dyeable. (Δ), sensory evaluation was performed in four stages, ie, the dyeability was considerably inferior (×).

(8) Touch The touch when the hair bundle after the hair dyeing treatment was touched with a hand was subjected to sensory evaluation in four stages: excellent (）), good (◯), slightly bad (Δ), and bad (×).

(9) Degree of hair damage The hair bundle after the hair dyeing treatment was evaluated for the lift of the cuticle using a scanning electron microscope. That is, using a sample hair bundle in which a knot is formed at a portion of 20 to 30 mm from the root of the hair after decoloring treatment, the cuticle shows how the cuticle floats in the knot phase when the knot of the sample hair bundle is pulled under a certain condition. Almost does not float, very little damage (◎), only a part of the outermost layer of the cuticle is lifted, there is little damage (○), the outermost layer of the cuticle is lifted as a whole, there is some damage ( (Triangle | delta), Most of the cuticles rose and it evaluated in four steps of damage (x).

In Examples 10, 11, 15 to 18, and Reference Examples 12 to 14 , as shown in Table 7, the stimulating odor of the hair dye composition was evaluated as having no irritating odor or almost no irritating odor. It was. The lightness was evaluated as excellent lightness or good lightness, and the dyeability was evaluated as excellent dyeability. In addition, the touch is evaluated as good, good, or slightly bad, and the hair damage degree is low because only a part of the outermost layer of the cuticle is lifted and the damage is small or the outermost layer of the cuticle is lifted as a whole. It was evaluated that there was a little.

  On the other hand, as shown in Table 8, in Comparative Example 10, the blending amount of monoethanolamine is less than 2.0% by weight, so that the lightness is not enough, and in Comparative Example 11, 28% by weight of ammonia water is blended. Therefore, it was evaluated that the lightness was slightly inferior and the lightness was slightly insufficient. Comparative Example 12 was evaluated as having a slightly irritating odor because the cationic surfactant was blended in excess of 1.5% by weight, and Comparative Example 13 was blended with diethanolamine instead of monoethanolamine. Therefore, the lightness was evaluated as insufficient. Furthermore, Comparative Example 14 and Comparative Example 15 were each evaluated as having an irritating odor because an anionic surfactant or an amphoteric surfactant was blended in addition to the nonionic surfactant. Comparative Example 16 and Comparative Example 17 are evaluated to have little or no irritating odor because the nonionic surfactant is blended in less than 1.5% by weight or more than 10.0% by weight. It was. Further, Comparative Example 18 was evaluated as having an irritating odor because 28 wt% ammonia water was blended in excess of 3.5 wt%.

Next, the technical idea that can be grasped from the embodiment will be described below.
(1) further hair dye composition you contains at least one of potassium carbonate and guanidine carbonate. According to this configuration, lightness can be further imparted to the hair.

(2) nonionic surfactant and the hair dye composition that is used in admixture with an oxidizing agent containing at least one cationic surfactant. According to this configuration, the irritating odor of the hair dye composition can be further reduced by containing the nonionic surfactant. Moreover, the touch of hair can be made more favorable by containing a cationic surfactant.

  (3) The decolorizing agent composition according to claim 1, wherein the nonionic surfactant of component (c) is an ester type nonionic surfactant. According to this configuration, the irritating odor of the decoloring agent composition can be further reduced.

(4) the component (d) are Ru Ah with a higher alcohol having a linear alkyl group having at least 18 carbon atoms de colorant composition. According to this configuration, the irritating odor of the decoloring agent composition can be further reduced.

  (5) The bleaching agent composition according to claim 1, (3) or (4), wherein the component (e) is a highly polymerized silicone having an average degree of polymerization of 650 to 10,000. According to this structure, the touch of the hair after decoloring can be made more favorable.

  (6) The decoloring agent composition according to any one of (1) and (3) to (5) above, which comprises a liquid crystal structure. According to this configuration, the irritating odor of the decoloring agent composition can be further reduced.

  (7) The decolorizer composition according to any one of (1) and (3) to (6), further comprising at least one of potassium carbonate and guanidine carbonate. According to this configuration, lightness can be further imparted to the hair.

  (8) The mixture according to any one of claims 1 and (3) to (7), wherein the mixture is used by mixing with an oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. Decolorant composition. According to this structure, the pungent odor of a decoloring agent composition can be reduced more by containing a nonionic surfactant. Moreover, the touch of hair can be made more favorable by containing a cationic surfactant.

Effect of the invention

Since this invention is comprised as mentioned above, there exist the following effects.
According to the decoloring agent composition of the first aspect of the invention, the irritating odor can be reduced and sufficient brightness can be imparted to the hair.

According to the hair dye composition of the invention described in claim 2, the irritating odor can be reduced, and sufficient lightness can be imparted to the hair .

According to the hair dye composition of the invention described in claim 3 , in addition to the effect of the invention described in claim 2, the feel of the hair after dyeing can be improved.

According to the hair dye composition of the invention described in claim 4 , in addition to the effect of the invention described in claim 2 or claim 3 , the irritating odor can be further reduced.

Claims (4)

A decolorizer composition used by mixing with an oxidizing agent, wherein the decolorizer composition is (a) 1.0 to 3.5 wt% when converted to 28 wt% ammonia water. ammonia, (b) 2.0 to 6.0 wt% of monoethanolamine, (c) 1.5 to 10.0 wt% of Mika et constituted surfactant of nonionic surfactant, (d 1) to 20% by weight of a higher alcohol, (e) 1.0 to 20% by weight of an oil component and (f) water, and (c) the nonionic surfactant is a polyoxyethylene monostearate A decolorizer composition comprising a rate, wherein the (d) higher alcohol has a linear alkyl group having 18 or more carbon atoms.
A hair dye composition used by mixing with an oxidizing agent, wherein the hair dye composition is (a) 1.0 to 3.5 wt% when converted to 28 wt% ammonia water. become ammonia, (b) 2.0 to 6.0 wt% of monoethanolamine, (c) 1.5 to 10.0 wt% of Mika et constituted surfactant of nonionic surfactant, (D) 1.0 to 20% by weight of higher alcohol, (e) 1.0 to 20% by weight of an oil component, (f) water and (g) a dye, and (c) nonionic surfactant A hair dye composition , wherein the agent comprises polyoxyethylene monostearate, and (d) the higher alcohol has a linear alkyl group having 18 or more carbon atoms.
The hair dye composition according to claim 2, wherein the component (e) is a highly polymerized silicone having an average degree of polymerization of 650 to 10,000.
The hair dye composition according to claim 2 or 3 , comprising a liquid crystal structure.