JP2002363050A - Decoloring agent 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 used by being mixed with an oxidizing agent comprises (a) at least one of ammonia and an ammonium salt, (b) 2.5-6.0 wt.% monoethanolamine, (c) 1.5-10.0 wt.% single nonionic surfactant, or 1.5-10.0 wt.% surfactants consisting of the 1.5-10.0 wt.% nonionic surfactant and <=1.5 wt.% cationic surfactant, and (d) water. The content of the component (a) is 0.08-0.78 wt.% expressed in terms of ammonia. The hair dye composition contains a hair dye besides the composition. The decoloring agent composition and the hair dye composition can be formed into oil-in-water type emulsions respectively by being formulated with higher alcohols and oil components, and can contain each a liquid crystal structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleaching composition and a hair coloring composition which can reduce pungent odor and impart sufficient lightness to hair.

[0002]

2. Description of the Related Art Conventionally, this type of decolorizing composition contains an alkaline agent, and specific examples thereof include ammonia, alkanolamine, and organic amines. Generally, ammonia is used. For this reason, monoethanolamine may be contained instead of ammonia in order to reduce the pungent odor of the decolorizing agent composition based on the ammonia odor. And while reducing the irritating odor of the decolorizing agent composition by reducing the content of ammonia,
It gives lightness to the hair.

[0003] On the other hand, hair dye compositions are disclosed in JP-A-11-18 / 1999.
A configuration as disclosed in Japanese Patent Application Laid-Open No. 0837 is known. This hair dye composition contains at least one of a para-aminophenol derivative and an ortho-aminophenol derivative for dyeing hair, a guanidinium salt, and further contains ammonia. By containing a guanidium salt, the content of ammonia is reduced, and the irritating odor of the hair dye composition is reduced.

[0004]

However, in the conventional bleaching composition and hair coloring composition, it is necessary to sufficiently reduce the irritating odor of the bleaching composition or the hair coloring composition based on the ammonia odor. There was a problem that can not be. Further, the bleaching agent composition has a further problem that sufficient lightness cannot be imparted to hair.

The present invention has been made by focusing on the problems existing in the prior art as described above. The aim is to reduce the irritating odor,
An object of the present invention is to provide a bleaching agent composition and a hair dye composition that can impart sufficient lightness to hair.

[0006]

In order to achieve the above object, a bleaching agent composition according to the first aspect of the present invention is a bleaching agent composition used by mixing with an oxidizing agent, a) at least one of ammonia and an ammonium salt, (b)
2.5-6.0% by weight of monoethanolamine, (c)
1.5 to 10.0% by weight of nonionic surfactant only,
Or a surfactant composed of 1.5 to 10.0% by weight of a nonionic surfactant and 1.5% by weight or less of a cationic surfactant, and (d) water, and the component ( The content of a) is 0.08 to 0.78% by weight in terms of ammonia.

[0007] The hair dye composition of the invention according to claim 2 is
A hair dye composition used in combination with an oxidizing agent,
(A) at least one of ammonia and an ammonium salt, (b) 2.5 to 6.0% by weight of monoethanolamine, (c) 1.5 to 10.0% by weight of a nonionic surfactant alone, Alternatively, a surfactant composed of 1.5 to 10.0% by weight of a nonionic surfactant and 1.5% by weight or less of a cationic surfactant, (d) water and (e) a dye And the content of the component (a) is 0.1% in terms of ammonia.
08 to 0.78% by weight.

[0008] The hair dye composition of the invention according to claim 3 comprises:
In the invention described in claim 2, the nonionic surfactant of the component (c) is an ester type nonionic surfactant.

The hair dye composition of the invention according to claim 4 is
The invention according to claim 2 or 3, further comprising (f) a higher alcohol and (g) an oily component.

[0010] The hair dye composition of the invention according to claim 5 comprises:
In the invention according to claim 4, the component (f) has 1 carbon atom.
It is a higher alcohol having 8 or more linear alkyl groups.

[0011] The hair dye composition of the invention according to claim 6 comprises:
According to the invention described in claim 4 or 5, the liquid crystal device contains a liquid crystal structure.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Hereinafter, a first embodiment of the present invention will be described.

The decolorizing composition of the first embodiment contains at least one of ammonia and an ammonium salt, monoethanolamine, a nonionic surfactant alone, or a nonionic surfactant and a cationic surfactant. A surfactant composed of an activator and water are contained. This bleaching agent composition is used in a form applicable to hair, such as a liquid or an emulsion. When the hair is bleached, it is mixed with an oxidizing agent.

An oxidizing agent is added to decolorize melanin contained in hair. Specific examples of the oxidizing agent include hydrogen peroxide. The amount of the oxidizing agent in the mixture of the decolorizing agent composition and the oxidizing agent is preferably 0.1%.
It is 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, if the content is more than 5% by weight, defects such as damage to hair are likely to occur.

[0015] Subsequently, ammonia and ammonium salts are added to promote the action of the oxidizing agent. Ammonia is preferably aqueous ammonia, more preferably 28.
It is blended as a% by weight aqueous ammonia. Specific examples of the ammonium salt include ammonium halides such as ammonium chloride, inorganic acid-based ammonium salts such as ammonium carbonate, ammonium hydrogen carbonate, ammonium sulfate, ammonium phosphate and ammonium hydrogen phosphate, ammonium lactate, ammonium citrate, and glycolic acid. And organic acid-based ammonium salts such as ammonium.

The combined amount of ammonia and ammonium salt is 0.08 to 0.78% by weight, preferably 0.42 to 0.
It is 78% by weight, more preferably 0.56 to 0.73% by weight. If the amount is less than 0.08% by weight, the effect of the oxidizing agent cannot be sufficiently promoted. On the other hand, when the content exceeds 0.78% by weight, the pungent odor of the decolorizing composition cannot be reduced.

Monoethanolamine is used as a substitute for ammonia and an ammonium salt to reduce the irritating odor of the decolorizing composition and to promote the action of an oxidizing agent to impart lightness to hair. Be blended. In addition, alkanolamines other than monoethanolamine cannot impart sufficient lightness to hair. The mixing amount of monoethanolamine is 2.5-6.
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 2.5% by weight, the effect of the oxidizing agent cannot be promoted. on the other hand,
If the content is more than 6.0% by weight, the hair may become stiff or squeaky when the bleaching solution is poured after bleaching. further,
After drying the hair (hereinafter referred to as "dry"), the feel of the hair becomes stiff and combing becomes poor. In addition, if the hair is repeatedly bleached continuously, the stiffness of the hair and the difficulty of combing it increase.

The nonionic surfactant constituting the surfactant is a decolorizing agent composition comprising an oil-in-water (O / W type) emulsion comprising water, a higher alcohol and an oily component, which will be described later. It is blended to further reduce the pungent odor. Furthermore, it is blended in order to further reduce the pungent odor of the decolorizing agent composition by forming a liquid crystal structure with water and a higher alcohol described later and incorporating an odor component into the liquid crystal structure. For this reason, the bleaching agent composition of the first embodiment is configured as an oil-in-water emulsion when a higher alcohol and an oily component are blended as other additional components, and contains a liquid crystal structure. . In addition, confirmation of a liquid crystal structure can be performed with a polarizing 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 octyl dodecyl ether, POE hexyl decyl ether. , P
Ether-type nonionic surfactants such as OE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, triolein POE sorbitan acid, POE glyceryl monostearate, POE glycerin monomyristate, POE sorbite tetraoleate, POE sorbite hexastearate, POE sorbite monolaurate, POE sorbit beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, monolaurin Polyethylene glycol acid,
Lipophilic glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, monolaurin Sorbitan acid, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate,
Examples include ester-type nonionic surfactants such as decaglyceryl monooleate and decaglyceryl monomyristate. Among these, ester-type nonionic surfactants are preferred because of the high effect of reducing the irritating odor of the decolorizing agent composition. The amount of the nonionic surfactant is 1.5
To 10.0% by weight, preferably 1.5 to 5.0% by weight,
More preferably, it is 2.5 to 4.0% by weight. 1.5
When the amount is less than 10.0% by weight or less than 10.0% by weight, the pungent odor of the decolorizing composition cannot be reduced.

The cationic surfactant constituting the surfactant is blended to improve the feel of the hair. Specific examples of the cationic surfactant include alkyltrimethylammonium chloride, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, lauryltrimethylammonium bromide, and dialkyldimethylammonium chloride. And quaternary ammonium salts. The content 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 the amount is more than 1.5% by weight, the pungent odor of the decolorizing composition cannot be reduced.

Water is included to reduce the pungent odor of the decolorizing composition. The amount of water is preferably 50 to 90% by weight, more preferably 70 to 85% by weight. still,
This range of the amount of water includes the weight ratio of water contained in the ammonia water when the ammonia is mixed as the ammonia water. If the content is less than 50% by weight, a liquid crystal structure cannot be formed, so that it is difficult to reduce the pungent odor of the decolorizing composition. On the other hand, if the content exceeds 90% by weight, it is difficult to ensure the emulsion stability of the decolorizing composition.

When the decolorizing composition of the first embodiment is constituted as an oil-in-water emulsion, the viscosity of the decolorizing composition is 10,000 to 50,000 millipascal seconds (mPa ·
s) is preferred. If it is less than 10,000 millipascal seconds, the mixture viscosity becomes small, and dripping or splashing tends to occur when performing a decoloring operation. On the other hand, if it is larger than 50,000 millipascal seconds, the mixing property of the components blended in the decolorizing agent composition is reduced, or the viscosity of the mixed solution becomes too high, making it difficult to uniformly apply to the hair,
When the hair is bleached, unevenness is likely to occur.

In the bleaching composition of the first embodiment, other additives such as an alkaline agent, a higher alcohol, an oily component, saccharides such as sorbitol and maltose, propylene glycol, 1,3-butanediol, dipropylene Polyhydric alcohols such as glycol and glycerin, alkyl glyceryl ethers such as batyl alcohol and chimyl alcohol, gum arabic, sodium alginate, xanthan gum, cellulose derivatives, natural or synthetic polymers such as cross-linked polyacrylic acid, and preservatives such as parabens , EDTA
A chelating agent such as -Na, a stabilizer such as phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, phosphoric acid,
PH adjusters such as citric acid, sulfuric acid, acetic acid, lactic acid, tartaric acid,
Contains at least one selected from plant extracts, crude drug extracts, vitamins, fragrances, ultraviolet absorbers, etc., and those listed in the "Quasi-drug Raw Material Standards" (published in June 1991, Yakuji Nippo) May be. The amount of the other additive components is determined according to a conventional method for the decolorizing composition.

The alkaline agent, like monoethanolamine, is compounded to impart lightness to hair by promoting the action of an oxidizing agent. Specific examples of the alkali agent include alkanolamines (such as diethanolamine) and 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 salts thereof. These alkali agents may be blended alone or in combination of two or more. The decolorizing composition may have a buffering action by combining two or more alkaline agents in an appropriate combination. The amount of the alkaline agent
The amount is such that the pH of the decolorizing composition is preferably 8 to 12. If the pH of the bleaching agent composition is less than 8, the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if it exceeds 12, problems such as damage to hair are likely to occur when performing decolorization.

The higher alcohol is blended to reduce the pungent odor of the decolorizing composition and to assist the emulsification of the decolorizing composition. Specific examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol,
-Octyldodecanol and the like. Of these, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, and behenyl alcohol, which are linear higher saturated alcohols, are preferred because of their high emulsification assisting effect. Among these,
A higher alcohol having a linear alkyl group having 18 or more carbon atoms is preferable because the decolorizing agent composition has a high effect of reducing a pungent odor. 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 used alone or in combination of two or more.

The oil component is added to reduce the pungent odor of the decolorizing composition and to improve the feel of the hair. Specific examples of the oily component include avocado oil, jojoba oil, macadamian nut oil, oils and fats such as glyceride of olive oil, beeswax, waxes such as lanolin, liquid paraffin, solid paraffin, isoparaffin, hydrocarbons such as squalane, Esters such as isopropyl myristate and octyl dodecyl myristate, dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, high-polymerization silicone having an average degree of polymerization of 650 to 10,000, silicones such as amino-modified silicone, lauric acid, 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, highly polymerized silicones having an average degree of polymerization of 650 to 10000 are preferred because of their high effect of improving the feel of the hair. If the average polymerization degree of the highly polymerized silicone is less than 650 or more than 10,000, the feel of hair cannot be sufficiently improved. As specific examples of the high-polymerized silicone,
Highly polymerized methylpolysiloxane having an average degree of polymerization of 650 or more, highly polymerized methylpolysiloxane having an average degree of polymerization of 7000, and the like can be given. These oil components may be used alone or in combination of two or more.

The blending amount of the higher alcohol and the oil component is as follows:
Each is preferably 1.0 to 20% by weight, and more preferably 3.0 to 12% by weight. If the amount is less than 1.0% by weight or more than 20% by weight, it is difficult to ensure the emulsion stability of the decolorizing composition.

The fragrance is blended to further reduce the pungent odor of the decolorizing composition. Specific examples of fragrances include fragrances described in JP-A-2000-344629. These flavors may be blended alone or in combination of two or more.

According to the first embodiment described in detail above, the following effects are exhibited. -In the bleaching agent composition of the first embodiment, (a)
At least one of ammonia and an ammonium salt,
(B) It contains 2.5 to 6.0% by weight of monoethanolamine, and the content of the component (a) is 0.0% in terms of ammonia.
8 to 0.78% by weight. For this reason, since the content of the component (a) can be reduced by containing the component (b), the pungent odor of the decolorizing agent composition can be reduced. Further, by containing the component (b), lightness can be imparted to the hair.

The decolorizing composition of the first embodiment contains a higher alcohol and an oily component as other additional components, and the decolorizing composition is constituted as an oil-in-water emulsion, whereby ammonia Is difficult to volatilize, so that the pungent odor of the decolorizing composition can be further reduced.

In the bleaching composition of the first embodiment, a liquid crystal structure is formed by containing a higher alcohol as another additive component, and the bleaching composition is incorporated by incorporating an odor component into the liquid crystal structure. Irritating odor can be further reduced.

In the bleaching agent composition of the first embodiment, the bleaching agent composition is constituted as an oil-in-water emulsion, and its viscosity is set in the range of 10,000 to 50,000 millipascal seconds (mPa · s). By doing so, it is possible to prevent dripping or scattering when performing the decoloring operation. Furthermore, by preventing the mixing property of the components blended in the decolorizing agent composition from decreasing, or by preventing the viscosity of the mixed solution from becoming too high to make it difficult to uniformly apply the hair, the hair is decolorized. It is possible to prevent the occurrence of unevenness when performing.

The bleaching agent composition of the first embodiment can improve the feel of the hair by containing an oily component as another additive component. -In the bleaching agent composition of the first embodiment, the blending amount of monoethanolamine is 2.5 to 6.0% by weight. Therefore, lightness can be imparted to the hair by promoting the action of the oxidizing agent. In addition, it is possible to prevent the hair from being stiff and squeaky when the bleaching solution is poured after bleaching. Furthermore, after drying, it is possible to prevent the feeling of the hair from being stiff and from being poorly combed. In addition, even when the decolorization of the hair is continuously repeated, the feel of the hair can be maintained satisfactorily. (Second Embodiment) Next, a second embodiment of the present invention will be described. In addition, about 2nd Embodiment, 1st
The following description focuses on the differences from the first embodiment.

The hair dye composition of the second embodiment contains a dye, at least one of ammonia and an ammonium salt, monoethanolamine, a nonionic surfactant alone, or a nonionic surfactant. And a cationic surfactant, and water. The hair dye composition is used in a form that can be applied to hair such as a liquid or an emulsion. When the hair is dyed, it is mixed with an oxidizing agent.

Dyes are 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 oxidation dye intermediates include phenylenediamines, aminophenols, toluylenediamines, aminonitrophenols, diphenylamines, diaminophenylamines, N-phenylphenylenediamines, diaminopyridines, and the like. Salts such as hydrochloride, sulfate, acetate and the like can be mentioned. Among these,
Paraphenylenediamine, paratoluylenediamine, N, N-bis (2-hydroxyethyl) -paraphenylenediamine, N-phenyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 2- Chloroparaphenylenediamine, N, N-dimethylparaphenylenediamine, paraaminophenol,
Preferred are 2,6-dichloroparaphenylenediamine, paraaminophenylsulfamic acid, and salts thereof. 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. 0.0
If it is less than 1% by weight, it is difficult to obtain a sufficient hair coloring power. on the other hand,
Even if it exceeds 15% by weight, it is difficult to obtain further hair coloring power.

When an oxidation dye intermediate is compounded as a dye, the amount of the oxidation dye intermediate is preferably 0.1%.
The content is from 01 to 15% by weight, more preferably from 0.1 to 10% by weight. If it is less than 0.01% by weight, it is difficult to obtain a sufficient hair coloring power. On the other hand, even if it exceeds 15% by weight, it is difficult to obtain a further hair dyeing power. Furthermore, by blending 0.01 to 10% by weight of the oxidation dye intermediate and 0.001 to 15% by weight of the direct dye, the dyeing finish and the dyeability can be further improved.

Subsequently, the oxidizing agent, in addition to the functions described above,
It is blended to oxidize a dye such as an oxidation dye intermediate.
Specific examples and amounts of the oxidizing agent are the same as those of the bleaching agent composition of the first embodiment. If the amount is less than 0.1% by weight, the melanin cannot be sufficiently decolorized and the dye cannot be sufficiently oxidized. On the other hand, if the content is more than 5% by weight, defects such as damage to hair are likely to occur.

Ammonia and ammonium salts, in addition to the functions described above, are formulated to swell the hair and make it easier for the dye and oxidant to penetrate into the hair. The specific examples and amounts of ammonia and ammonium salts are the same as those of the decolorizing composition of the first embodiment. The combined amount of ammonia and the ammonium salt is 0.04 in terms of ammonia.
If it is less than 8% by weight, the hair cannot be sufficiently swollen and the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if it exceeds 0.78% by weight, the irritating odor of the hair dye composition cannot be reduced.

Monoethanolamine, in addition to the above-mentioned functions, is blended to swell the hair and to make it easier for the dye and the oxidizing agent to penetrate into the hair. The blending amount of monoethanolamine is the same as that of the decolorizing composition of the first embodiment.
If the amount of monoethanolamine is less than 2.5% by weight, the hair cannot swell and the action of the oxidizing agent cannot be promoted. On the other hand, 6.0% by weight
If it exceeds, the hair becomes stiff and squeaky when the dyeing liquor is flowed after the hair dyeing (hereinafter referred to as plain rinse).
Furthermore, after drying, the feel of the hair becomes stiff and combing becomes poor. In addition, if hair coloring is repeated continuously, stiffness of hair and poor combability increase.

The nonionic surfactant and the cationic surfactant constituting the surfactant are blended for the above-mentioned functions. The specific examples and the amounts of the nonionic surfactant and the cationic surfactant are the same as those of the bleaching composition of the first embodiment. The amount of the nonionic surfactant is less than 1.5% by weight and 10.
If it exceeds 0% by weight, the irritating odor of the hair dye composition cannot be reduced. On the other hand, if the amount of the cationic surfactant exceeds 1.5% by weight, the pungent odor of the dye composition cannot be reduced.

Water is blended for the above-mentioned function. The blending amount of water is the same as that of the bleaching composition of the first embodiment. If the amount is less than 50% by weight, the liquid crystal structure cannot be formed, and it is difficult to reduce the pungent odor of the hair dye composition. On the other hand, if it is more than 90% by weight, it is difficult to ensure the emulsion stability of the hair dye composition.

When the hair dye composition of the second embodiment is constituted as an oil-in-water emulsion, the viscosity of the hair dye composition is 10,000 to 50,000 millipascal seconds (mPa ·
s) is preferred. If it is less than 10,000 millipascal seconds, the mixing viscosity becomes small, and dripping or scattering easily occurs when performing a hair dyeing operation. On the other hand, when it is larger than 50,000 millipascal seconds, the mixing property of the components mixed in the hair dye composition is reduced, or the viscosity of the mixed solution becomes too high, and it becomes difficult to uniformly apply the mixture to the hair,
Irregularities easily occur when dyeing hair.

In the hair dye composition of the second embodiment, natural pigments and pigments may be blended as other additional components in addition to those described in the first embodiment. The amount of the other additive components is determined according to a conventional method of the hair dye composition.

The alkaline agent, in addition to the above-mentioned functions, is blended, like monoethanolamine, for swelling the hair and for facilitating the penetration of the dye and the oxidizing agent into the hair. Specific examples and amounts of the alkaline agent are the same as those of the bleaching agent composition of the first embodiment. If the pH of the hair dye composition is less than 8, the hair cannot swell sufficiently and the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, 12
When the amount exceeds the above, problems such as damage to the hair are likely to occur when performing the hair dyeing.

The higher alcohol and the oily component are blended for the above-mentioned functions. The specific examples and blending amounts of the higher alcohol and the oil component are the same as those of the bleaching composition of the first embodiment. If the blending amount of the higher alcohol and the oily component is less than 1.0% by weight or more than 20% by weight, it is difficult to secure the emulsion stability of the hair dye composition. In addition, the fragrance is blended for the above-mentioned function expression. Specific examples of the fragrance are the same as those of the bleaching composition of the first embodiment.

According to the second embodiment described in detail above, the following effects are exhibited. -In the hair dye composition of the second embodiment, the hair can be dyed in various colors by mixing an oxidation dye intermediate as a dye.

In the hair dye composition of the second embodiment, the blending amount of monoethanolamine is 2.5 to 6.0.
% By weight. For this reason, the hair can be swelled and, by promoting the action of the oxidizing agent, the hair can be given lightness. Further, it is possible to prevent the hair from being stiff and squeaky during plain rinsing. Further, after drying, it is possible to prevent the feeling of the hair from being stiff and from being difficult to comb. Furthermore, even if hair coloring is repeated continuously, the feel of the hair can be favorably maintained.

The above embodiment can be modified as follows. -In the bleaching agent composition of the first embodiment, it may be configured to be used by mixing with an oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. Even in the case of such a configuration, the pungent odor of the decolorizing composition can be reduced by containing the nonionic surfactant. Further, by containing a cationic surfactant, the feel of hair can be improved.

The bleaching composition of the first embodiment may further contain at least one of potassium carbonate and guanidine carbonate. With such a configuration, it is possible to impart more lightness to the hair.

The hair dye composition of the second embodiment is configured to be used by mixing with an oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. Is also good. Even with this configuration,
By containing a nonionic surfactant, the irritating odor of the hair dye composition can be reduced. Further, by containing a cationic surfactant, the feel of hair can be improved.

The hair dye composition of the second embodiment may further contain at least one of potassium carbonate and guanidine carbonate. With such a configuration, it is possible to impart more lightness to the hair.

[0051]

Next, the embodiment will be described more specifically with reference to examples and comparative examples. (Examples 1 to 10 and Comparative Examples 1 to 9) Examples 1 to 10 and Comparative Examples 1 to 9 as two-pack type decolorizing compositions are shown in Table 1.
And as shown in Table 2, the first agent and the second agent were prepared.
The pH of the second agents of Examples 1 to 10 and Comparative Examples 1 to 9 was adjusted to 3 with phosphoric acid after preparation. Table 1
In Table 2 and Table 2, the numerical values are shown in% by weight.
The numerical values of wt% ammonia water and ammonium chloride are shown in wt% when converted to ammonia.

[0052]

[Table 1]

[0053]

[Table 2] About the decoloring agent composition of each row of Table 1 and Table 2, after mixing a 1st agent and a 2nd agent, it applied to the hair bundle. At this time, Examples 1 to 10 and Comparative Examples 1 to 9 are oil-in-water emulsions in the form of a cream. The bleaching agent composition and the hair bundle after the bleaching treatment were evaluated with respect to the following items (1) to (4). Tables 3 and 4 show the evaluation results.

(1) Irritating odor The smell of the decolorizing composition was smelled, and there was no irritating odor (5), there was almost no irritating odor (4), and there was a little irritating odor (3).
The sensory evaluation was carried out on a five-point scale of (2) having a pungent odor and (1) having a pungent odor.

(2) Lightness The hair bundle after the decolorization treatment is visually observed, and the lightness of decolorization is excellent lightness (5), good lightness (4), lightness is slightly insufficient (3), lightness is poor. The evaluation was performed on a five-point scale of slightly insufficient (2) and insufficient lightness (1).

(3) Feeling The touch when the hair bundle after the decolorization treatment was touched by hand was organoleptically evaluated on four levels: excellent (優), good (○), slightly poor (や), and poor (×). .

(4) Degree of Hair Damage The hair bundle after the decolorizing treatment was evaluated for the degree of lifting 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 the decolorization treatment, the cuticle is lifted in the knot phase when the knot of the sample hair bundle is pulled under a certain condition. Little rise, very little damage (◎), only a part of the outermost layer of the cuticle is raised, little damage (○), the outermost layer of the cuticle is entirely raised, there is some damage ( Δ), most of the cuticles were raised, and there was damage (x).

[0058]

[Table 3]

[0059]

[Table 4] In Examples 1 to 10, as shown in Table 3, the irritating odor of the decolorizing agent composition was evaluated as having no or almost no irritating odor. In addition, lightness is evaluated as excellent lightness or good lightness.
Excellent, good or slightly poor. Furthermore, regarding the degree of hair damage, it was evaluated that the cuticle hardly floated and the damage was very small, 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 entirely lifted and the damage was somewhat evaluated. Was done.

On the other hand, as shown in Table 4, Comparative Example 1 was evaluated as having insufficient brightness because the blending amount of monoethanolamine was less than 2.5% by weight, and Comparative Example 2 was evaluated as having 28% by weight aqueous ammonia. Alternatively, it was evaluated that the brightness was somewhat insufficient because ammonium chloride was not blended. Comparative Example 3 was evaluated as having a slight irritating odor because the cationic surfactant was added in an amount exceeding 1.5% by weight, and Comparative Example 4 was mixed with diethanolamine instead of monoethanolamine. Was evaluated as slightly insufficient in brightness.
Furthermore, Comparative Example 5 and Comparative Example 6 were each evaluated as having a pungent odor because an anionic surfactant or an amphoteric surfactant was added in addition to the nonionic surfactant. Comparative Examples 7 and 8 were evaluated as having little or no pungent odor because the nonionic surfactant was incorporated in less than 1.5% by weight or more than 10.0% by weight. Was. Comparative Example 9 was evaluated as having a pungent odor because 28% by weight of aqueous ammonia was added in excess of 0.78% by weight in terms of ammonia.

(Examples 11 to 20 and Comparative Examples 10 to 1)
8) In Examples 11 to 20 and Comparative Examples 10 to 18 as two-part hair dye compositions, the first and second parts were prepared as shown in Tables 5 and 6. The pH of the second agents of Examples 11 to 20 and Comparative Examples 10 to 18 was adjusted to 3 with phosphoric acid after preparation. In Tables 5 and 6,
The numerical values are shown in% by weight, and the values of 28% by weight of aqueous ammonia and ammonium chloride are shown in% by weight in terms of ammonia.

[0062]

[Table 5]

[0063]

[Table 6] About the hair dye composition of each row of Table 5 and Table 6, after mixing a 1st agent and a 2nd agent, it applied to the hair bundle. At this time, Examples 11 to 20 and Comparative Examples 11 to 18 are oil-in-water emulsions in the form of a cream. Then, the hair dye composition and the hair bundle after the hair dyeing treatment were evaluated with respect to the following items (5) to (9). Tables 7 and 8 show the evaluation results.

(5) Irritating odor The odor of the hair dye composition was smelled, and there was no irritating odor (5), there was almost no irritating odor (4), and there was a little irritating odor (3).
The sensory evaluation was carried out on a five-point scale of (2) having a pungent odor and (1) having a pungent odor.

(6) Lightness The hair bundle after the hair dyeing treatment was visually observed, and the lightness of the dyeing was excellent in lightness (5), good lightness (4), lightness was slightly insufficient (3), lightness The evaluation was made on a scale of 5 which was slightly insufficient (2) and insufficient in brightness (1).

(7) Dyeing property The hair bundle after the hair dyeing treatment was visually observed, and the dyeing property of the hair dye composition was excellent (優 れ), good dyeing property (○), slightly dyed. The sensory evaluation was made in four stages: poor (性) and considerably poor (x).

(8) Feeling The feeling when the hair bundle after the hair dyeing treatment was touched by hand was evaluated organoleptically in four levels of excellent (◎), good (○), slightly poor (△), and poor (×). did.

(9) Degree of Hair Damage The hair bundle after the hair dyeing treatment was evaluated for the degree of lifting 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 the hair dyeing treatment, and the degree of lifting of the cuticle in the knot phase when the knot of the sample hair bundle is pulled under a certain condition, the cuticle Is hardly lifted up and has very little damage (◎), only a part of the outermost layer of the cuticle is lifted up, little damage (○), the outermost layer of the cuticle is entirely lifted up and there is some damage (△), most of the cuticles were raised, and there was damage (×).

[0069]

[Table 7]

[0070]

[Table 8] In Examples 11 to 20, as shown in Table 7, the irritating odor of the hair dye composition was evaluated as having no or almost no irritating odor. As for brightness,
It was evaluated as excellent lightness or good lightness, and the dyeability was evaluated as excellent dyeability. Furthermore, the feel was evaluated as excellent, good or slightly poor, and the degree of hair damage was such that the cuticle hardly lifted and the damage was very small, only a part of the outermost layer of the cuticle was lifted and the damage was small or the cuticle was damaged. The outer layer was entirely raised, and it was evaluated that there was some damage.

On the other hand, as shown in Table 8, Comparative Example 10 was evaluated as having insufficient brightness because the blending amount of monoethanolamine was less than 2.5% by weight, and Comparative Example 11 was evaluated as having 28% by weight aqueous ammonia. Alternatively, since ammonium chloride was not added, it was evaluated that the dyeability was slightly inferior and the brightness was slightly insufficient. Comparative Example 12 was evaluated as having a slight irritating odor because the cationic surfactant was added in an amount of more than 1.5% by weight, and Comparative Example 13 was mixed with diethanolamine instead of monoethanolamine. Was evaluated as slightly insufficient in brightness. Further, Comparative Example 1
4 and Comparative Example 15 were each evaluated as having a pungent odor because an anionic surfactant or an amphoteric surfactant was blended in addition to the nonionic surfactant. In Comparative Examples 16 and 17, the nonionic surfactant was 1.5
It was evaluated as having a slight or irritating odor due to being contained in an amount of less than 10.0% by weight or less than 10% by weight. Further, Comparative Example 18 was evaluated as having a pungent odor because 28% by weight of aqueous ammonia exceeded 0.78% by weight in terms of ammonia.

Next, the technical ideas that can be grasped from the above embodiment will be described below. (1) The hair dye composition according to any one of claims 4 to 6, wherein the component (g) is a highly polymerized silicone having an average degree of polymerization of 650 to 10,000. According to this configuration, the feel of the hair can be further improved.

(2) Claims 2 to 6 further containing at least one of potassium carbonate and guanidine carbonate.
And the hair dye composition according to any one of the above (1).
According to this configuration, lightness can be imparted to the hair.

(3) The composition of (2) to (6), (1) and (2), which are used in combination with an oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant. The hair dye composition according to any one of the above. According to this configuration, by containing the nonionic surfactant, the irritating odor of the hair dye composition can be further reduced. Further, by containing a cationic surfactant, the feel of hair can be further improved.

(4) The hair dye composition according to any one of (2) to (6) and (1) to (3), wherein the ammonium salt of the component (a) is ammonium chloride. According to this configuration, the ammonium salt can be easily blended into the hair dye composition.

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

(6) The decolorizing composition according to (1) or (5), further comprising (e) a higher alcohol and (f) an oily component. According to this configuration, the irritating odor of the decolorizing composition can be further reduced, and the feel of the hair can be improved.

(7) The decolorizing composition according to the above (6), wherein the component (e) is a higher alcohol having a linear alkyl group having 18 or more carbon atoms. According to this configuration, the pungent odor of the decolorizing agent composition can be further reduced.

(8) The above (6) comprising a liquid crystal structure
Or the decolorizing agent composition according to the above (7). According to this configuration, the pungent odor of the decolorizing agent composition can be further reduced. (9) The decolorizing composition according to any one of the above (6) to (8), wherein the component (f) is a highly polymerized silicone having an average degree of polymerization of 650 to 10,000. According to this configuration,
The feel of the hair can be improved.

(10) The decolorizing composition according to any one of (1) and (5) to (9), further comprising at least one of potassium carbonate and guanidine carbonate. According to this configuration, lightness can be imparted to the hair.

(11) The method according to (1) or (5), wherein the compound is used by mixing with an oxidizing agent containing at least one of a nonionic surfactant and a cationic surfactant.
The decolorizing composition according to any one of 0). According to this configuration, by containing a nonionic surfactant,
The irritating odor of the bleaching agent composition can be further reduced. Further, by containing a cationic surfactant, the feel of hair can be further improved.

(12) The decolorizing composition according to any one of (1) and (5) to (11), wherein the ammonium salt of the component (a) is ammonium chloride. According to this configuration, the ammonium salt can be easily blended into the hair dye composition.

[0083]

Since the present invention is configured as described above, it has the following effects. ADVANTAGE OF THE INVENTION According to the bleaching agent composition of the invention of Claim 1, while being able to reduce a pungent odor, sufficient brightness can be provided to hair.

According to the hair dye composition of the second aspect of the present invention, the irritating odor can be reduced, and sufficient lightness can be imparted to the hair. According to the hair dye composition of the third aspect, in addition to the effects of the second aspect, the irritating odor can be further reduced.

According to the hair dye composition of the fourth aspect, in addition to the effects of the second or third aspect, the irritating odor can be further reduced and the feel of the hair can be improved. Can be good.

According to the hair dye composition of the invention described in claim 5, in addition to the effect of the invention described in claim 4, the irritating odor can be further reduced. According to the hair dye composition of the invention described in claim 6, in addition to the effects of the invention described in claim 4 or 5, the irritating odor can be further reduced.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Tomomi Kanaiwa 1-chome, Hazuki, Chukku-cho, Nagakute-cho, Aichi-gun, Aichi F-term in Hoyu R & D Co., Ltd. (reference) 4C083 AA081 AA121 AB051 AB052 AB081 AB082 AB312 AB331 AB332 AB412 AC022 AC061 AC071 AC072 AC402 AC472 AC541 AC542 AC552 AC642 AC692 AC712 AC742 AC782 AD152 BB04 BB06 BB11 CC35 CC36 DD31 EE06 EE26 EE27

Claims (6)

[Claims] 1. A decolorizing agent composition used in admixture with an oxidizing agent, wherein (a) at least one of ammonia and an ammonium salt, and (b) 2.5 to 6.0% by weight of monoethanolamine. (C) 1.5 to 10.0% by weight of nonionic surfactant alone, or 1.5 to 10.0% by weight of nonionic surfactant and 1.5% by weight or less of cationic A surfactant composed of a surfactant and (d) water, wherein the content of the component (a) is 0.0
A bleaching agent composition characterized by being 8 to 0.78% by weight. 2. A hair dye composition used in admixture with an oxidizing agent, comprising (a) at least one of ammonia and an ammonium salt, and (b) 2.5-6.0% by weight of monoethanol. Amine, (c) 1.5 to 10.0% by weight of nonionic surfactant alone, or 1.5 to 10.0% by weight of nonionic surfactant and 1.5% by weight or less of cation A surfactant composed of a water-soluble surfactant, (d) water and (e) a dye, and the content of the component (a) is 0.08 to 0.78% by weight in terms of ammonia. Characteristic hair dye composition. 3. The non-ionic surfactant of component (c) comprises:
The hair dye composition according to claim 2, which is an ester-type nonionic surfactant. 4. A method according to claim 1, further comprising (f) a higher alcohol and (g)
The hair dye composition according to claim 2 or 3, further comprising an oily component. 5. The hair dye composition according to claim 4, wherein the component (f) is a higher alcohol having a linear alkyl group having 18 or more carbon atoms. 6. The hair dye composition according to claim 4, which comprises a liquid crystal structure.