JP2003055174A - Hair cosmetic composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic composition capable of imparting sufficient brightness even with an alkanolamine only and also decreasing irritating odor still more. SOLUTION: This hair cosmetic composition comprises a first agent and a second agent. The first agent contains at least the alkanolamine and the second agent contains at least an oxidizer, an oily component and a surfactant. The mixture of the first agent and the second agent contains 1.0-5.0 wt.% alkanolamine, 17.5-27.0 wt.% oily component and 1.75-10.0 wt.% surfactant, and the weight ratio of the oily component to the surfactant is set at <=10.0.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hair cosmetic composition applied to hair as an oxidative hair dye or a hair bleaching agent.

[0002]

2. Description of the Related Art Heretofore, a hair cosmetic composition of this kind has been prepared by mixing a first agent containing an alkaline agent and a dye such as an oxidation dye intermediate with a second agent containing an oxidizing agent. Has been used as an oxidative hair dye. A dye prepared by removing the dye such as the oxidative dye intermediate of the first agent and mixing it with the second agent having an oxidizing agent is used as a hair decolorizing agent.

The alkaline agent contained in the first agent imparts lightness to the hair by promoting the action of the oxidizing agent.
On the other hand, ammonia has been conventionally blended as an alkaline agent, but this ammonia has an irritating odor. Therefore,
Attempts have been made to reduce the irritating odor by reducing the content of ammonia by containing alkanolamine such as monoethanolamine instead of ammonia.

[0004]

However, when an alkanolamine such as monoethanolamine is used in place of ammonia, the action of the oxidizing agent cannot be sufficiently promoted, so that there is a problem that the lightness of hair cannot be sufficiently obtained. It was Further, if ammonia is added to sufficiently promote the action of the oxidizing agent, there is a problem that the pungent odor is not reduced.

The present invention has been made by paying attention to the problems existing in the prior art as described above. An object of the invention is to provide a hair cosmetic composition capable of imparting sufficient lightness only with an alkanolamine and further reducing the irritating odor.

[0006]

In order to achieve the above object, in the hair cosmetic composition of the invention described in claim 1, a first agent containing at least an alkanolamine, at least an oxidizing agent, an oily component and Second containing a surfactant
A hair cosmetic composition for use as an oxidative hair dye or a hair bleaching agent, which is prepared by mixing the agents at the time of use, which comprises a first agent and a second agent.
Alkanolamine is 1.0 to 5.0 in the mixture of agents.
% By weight, 17.5 to 27.0% by weight of oily component and 1.75 to 10.0% by weight of surfactant, and
The weight ratio of the oil component and the surfactant (weight of oil component / weight of surfactant) is 10.0 or less.

In the hair cosmetic composition of the invention described in claim 2, in the invention described in claim 1, 65% by weight or more of the oily component is contained in the second agent. In the hair cosmetic composition of the invention described in claim 3, in the invention of claim 1 or 2, the first agent contains at least one of ammonia and an ammonium salt, and the content in the first agent The amount is 0.001 in terms of ammonia
.About.0.370% by weight.

In the hair cosmetic composition of the invention described in claim 4, in the invention described in any one of claims 1 to 3, the oil component contains at least glycerin monoalkyl ether.

In the hair cosmetic composition of the invention described in claim 5, in the invention described in any one of claims 1 to 4, the surfactant is a nonionic surfactant and a cation. It is one that is at least one of the organic surfactants.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) The first embodiment in which the present invention is embodied in a hair cosmetic composition used as an oxidative hair dye will be described in detail below.

The hair cosmetic composition in this embodiment is
It is obtained by mixing two kinds of the first agent and the second agent.
In addition, the hair cosmetic composition according to this embodiment includes the first agent and the second agent.
And the agent. [First Agent] In addition to at least an alkanolamine, the first agent in the present embodiment contains ammonia and an ammonium salt, a dye, an oily component, a surfactant, water and the like.

Alkanolamines are incorporated to impart lightness to the hair by promoting the action of oxidizing agents. Specific examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, isopropanolamine, dipropanolamine, tripropanolamine,
2-amino-2-methyl-1,3-propanediol,
2-amino-2-methyl-1-propanol, 2-amino-2-hydroxymethyl-1,3-propanediol and the like can be mentioned. Of these, monoethanolamine is preferred because it has a high effect of imparting lightness to hair.
The content of the alkanolamine in the first agent is preferably 2.0 to 10.0% by weight, more preferably 4.0 to 8.0% by weight, and particularly preferably 6.0 to 8.0.
% 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 the content is more than 10.0% by weight, when the oxidative hair dye is applied after the hair is dyed, the hair tends to be stiff and squeaky.

Ammonia and ammonium salts are blended to accelerate the action of the oxidant, thereby providing more sufficient lightness and hair dyeing power. Ammonia is preferably formulated as aqueous ammonia, more preferably 28% by weight aqueous ammonia. Specific examples of ammonium salts include ammonium halides such as ammonium chloride, ammonium carbonate, ammonium hydrogen carbonate, ammonium sulfate, ammonium phosphate, inorganic acid-based ammonium salts such as ammonium hydrogen phosphate, ammonium lactate, and the like.
Examples thereof include organic acid ammonium salts such as ammonium citrate and ammonium glycolate. The first agent preferably contains at least one of these ammonia and ammonium salt, and the combined amount of ammonia and ammonium salt is 0.001 to 0.370% by weight in terms of ammonia in the first agent. is there. If the content is less than 0.001% by weight, the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, if the content exceeds 0.370% by weight, an irritating odor is likely to occur.

Dyes are included to dye hair.
Specific examples of the dye include oxidative dye intermediates and direct dyes. The oxidative dye intermediate dyes hair by being oxidized by an oxidizing agent. Specific examples of oxidative dye intermediates include phenylenediamines, aminophenols, toluylenediamines, aminonitrophenols, diphenylamines, diaminophenylamines,
Examples thereof include N-phenylphenylenediamines, diaminopyridines, and their salts such as hydrochlorides, sulfates and acetates. Among these, since the hair dyeing power is strong, paraphenylenediamine, paratoluylenediamine, N,
N-bis (2-hydroxyethyl) -paraphenylenediamine, N-phenyl-paraphenylenediamine, 4,
Preferred are 4'-diaminodiphenylamine, 2-chloroparaphenylenediamine, N, N-dimethylparaphenylenediamine, paraaminophenol, 2,6-dichloroparaphenylenediamine, paraaminophenylsulfamic acid, and salts thereof. These oxidation dye intermediates may be blended alone or in combination of two or more. The compounding amount of the dye is 0.01 in the first agent.
˜15.0% by weight is preferred. If the blending amount is less than 0.01% by weight, it is difficult to obtain sufficient hair dyeing power. On the other hand, 1
Even if blended in an amount of more than 5.0% by weight, it is difficult to obtain further hair dyeing power.

The oily component is added in order to improve the accelerating action of the oxidant by the alkanolamine and to obtain good hair dyeing power and lightness. Specific examples of the oil component include avocado oil, jojoba oil, macadamian nut oil, fats and oils 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 octyldodecyl myristate,
Dimethyl polysiloxane, methylphenyl polysiloxane, polyether modified silicone, highly polymerized silicone,
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, linolenic acid, lauryl alcohol, myristyl alcohol,
Higher alcohols such as cetyl alcohol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-octyldodecanol, glycerin monoalkyl ether (xyl alcohol, cerakil alcohol, batyl alcohol), etc. Can be mentioned. These oily components may be blended alone or in combination of two or more. Among these oily components, it is preferable to contain at least glycerin monoalkyl ether in order to reduce the change in viscosity when the first agent and the second agent are mixed. Further, among these oily components, in order to assist the emulsification of the first agent, it is preferable that at least the higher alcohol is contained in the first agent.

The oily component is the total oily component of 35 in the first agent.
It is preferable to mix the ingredients in a range not exceeding the weight percentage. First
When the compounding amount in the agent exceeds 35% by weight of the total oily component, the alkaline component (alkanolamine) in the first agent is distributed to the water phase side at a high concentration. If this happens, the tube container may be corroded. Further, even when a resin coating is applied to the inner surface of the tube container, it becomes difficult to select a coating agent. In addition, in the case of adding ammonia and ammonium salt to the first agent, if the amount of the agent in the first agent exceeds 35% by weight of the total oily component, the concentration of ammonia on the aqueous phase side becomes high, resulting in an irritating odor. There is a problem that can not be suppressed. Therefore, it is preferable to add a large amount of oily component to the second agent.

The surfactant is blended in order to impart dispersion stability to the first agent. The type of surfactant may be any of a cationic surfactant, an anionic surfactant, a nonionic surfactant and an amphoteric surfactant.

The cationic surfactant is added to improve the feel of the hair in addition to the above-mentioned effects. Specific examples of the cationic surfactant, alkyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, lauryl trimethyl ammonium bromide,
Examples thereof include quaternary ammonium salts such as dialkyldimethylammonium chloride.

Specific examples of the anionic surfactant include:
Sodium lauryl sulfate, polyoxyethylene (hereinafter,
POE) lauryl ether, sodium stearoylmethyl taurine, triethanolamine dodecylbenzene sulfonate, sodium tetradecene sulfonate, POE lauryl ether phosphate, and salts thereof.

In addition to the above-mentioned action, the nonionic surfactant constitutes an oil-in-water emulsion with water and an oily component to impart emulsion stability to the first agent, and particularly when ammonia is added. Secondly, the pungent odor of the first agent is reduced. 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, P
Ether type nonionic surfactants such as OE isostearyl ether, POE nonyl phenyl ether, POE octyl phenyl ether, POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, triolein Acid POE sorbitan, POE glycerin monostearate, POE glycerin monomyristate, POE sorbit tetraoleate, POE sorbit hexastearate, POE sorbit monolaurate, POE sorbit beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, monolaurin Acid polyethylene glycol,
Lipophilic glyceryl monooleate, lipophilic glyceryl monostearate, self-emulsifying glyceryl monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, monolaurin Acid sorbitan, sucrose fatty acid ester, decaglyceryl monolaurate, decaglyceryl monostearate,
Examples thereof include ester type nonionic surfactants such as decaglyceryl monooleate and decaglyceryl monomyristate.

Specific examples of the amphoteric surfactant include 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium and 2-cocoyl-2-imidazolinium hydroxide-1-carboxy. Ethyloxy disodium salt, 2-heptadecyl-N-
Examples thereof include carboxymethyl-N-hydroxyethylimidazolinium betaine, cocoamidopropyl betaine, lauryldimethylaminoacetic acid betaine, and lauramidopropyl betaine.

Of these, at least one of a nonionic surfactant and a cationic surfactant is preferable. The nonionic surfactant imparts emulsion stability,
Cationic surfactants can improve the feel of hair. The content of the nonionic surfactant in the first agent is preferably 10.0% by weight or less, more preferably 8.5% by weight or less, and particularly preferably 8.0% by weight or less. Even if it is blended in an amount of more than 10.0% by weight, further improvement of the emulsion stability cannot be expected, and especially when ammonia is blended, the pungent odor of the first agent cannot be sufficiently reduced. The content of the cationic surfactant in the first agent is preferably 1.5% by weight or less, more preferably 1.0% by weight or less, particularly preferably 0.3% by weight.
It is the following. Even if blended in excess of 1.5% by weight, no further improvement in the feel of hair can be expected.

Water is a component for obtaining an oil-in-water type emulsion, and is added in an appropriate amount to reduce the pungent odor of the first agent, especially when ammonia is added. In the first agent of the first embodiment, as other additive components, alkali agents, saccharides such as sorbitol and maltose, polyhydric alcohols such as propylene glycol, 1,3-butanediol, dipropylene glycol, glycerin and resorcin. , Alkyl glyceryl 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 , Phenacetin, 8
-Hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, stabilizers such as tannic acid, phosphoric acid, citric acid, sulfuric acid, acetic acid, lactic acid, tartaric acid and the like pH adjusting agents, plant extracts, herbal extracts, Vitamins, fragrances, UV absorbers, etc.
You may mix | blend at least 1 sort (s) chosen from what is published by the Pharmaceutical Affairs Daily, published in June, 991. The amount of other additive components to be added is determined according to the conventional method for the first agent.

Alkali agents mean those other than alkanolamines, ammonia and ammonium salts and are added to impart lightness to the hair by promoting the action of oxidizing agents. Specific examples of the alkaline agent include organic amines (2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkalis (sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, etc.), Examples thereof include basic amino acids (arginine, lysine, etc.) and salts thereof. These alkaline agents may be added alone or in combination of two or more. Further, the first agent may have a buffering effect by blending two or more kinds of alkaline agents in an appropriate combination. The amount of the alkaline agent blended is such that the pH of the first agent is preferably 8-12. If the pH of the first agent is less than 8, the action of the oxidizing agent cannot be sufficiently promoted. On the other hand, when it exceeds 12, defects such as damage to the hair are likely to occur when the hair is dyed.

The fragrance is added to mask the raw material odor and to further reduce the pungent odor of the first agent, especially when ammonia is added. Specific examples of the fragrance include the fragrances described in JP-A-2000-344629. These fragrances may be added alone or in combination of two or more.

When the first agent of the first embodiment is constituted as an oil-in-water emulsion, the viscosity of the first agent is 1000.
0 to 50,000 millipascal · second (mPa · s) is preferable. When it is less than 10000 millipascal · second, the mixed viscosity becomes small, and when the bleaching operation is performed, dripping or scattering is likely to occur. On the other hand, when it is more than 50,000 millipascal · second, the mixing property of the components blended in the first part is lowered, or the viscosity of the mixed solution becomes too high, which makes it difficult to apply it uniformly on the hair, and the dyeing Unevenness is likely to occur when bristling. [Second Agent] At least the oxidizing agent, the oil component, and the surfactant are mixed with the second agent in the present embodiment, and water and the like are mixed therein.

The oxidant is added to decolorize the melanin contained in the hair and oxidize the dye such as the oxidizing raw material intermediate. Specific examples of the oxidizing agent include hydrogen peroxide and the like. The content of the oxidizing agent in the second agent is preferably 0.2 to 10.0% by weight, more preferably 2.0 to 10.
It is 6.0% by weight. If it is less than 0.2% by weight, melanin cannot be decolorized. On the other hand, if the content is more than 10.0% by weight, problems such as damage to hair occur.

The oil component is blended in order to exhibit the function described in the above-mentioned first agent. Specific examples of the oily component are the same as those of the first agent. For the reason described in the first agent, it is preferable that 65% by weight or more of the total oily component is blended in the second agent.

The same surfactant as the above-mentioned first agent is used as the surfactant. The type of surfactant is preferably at least one of a nonionic surfactant and a cationic surfactant for the reason described in the first agent. The blending amount of the nonionic surfactant in the second agent is preferably 1
The amount is 0.0% by weight or less, more preferably 8.5% by weight or less, and particularly preferably 8.0% by weight or less. 10.0
Even if it is blended in an amount exceeding the weight percentage, further improvement of the emulsion stability cannot be expected. The content of the cationic surfactant in the second agent is preferably 1.5% by weight or less, more preferably 1.0% by weight or less, and particularly preferably 0.3% by weight or less. Even if it is blended in excess of 1.5% by weight, no further improvement in the feel of hair can be expected.

Water is added in an appropriate amount for the emulsion stability of the second agent. As the other component, at least one selected from other additive components that can be blended in the above-mentioned first agent may be blended in the second agent.

The pH of the second agent is preferably 2 to 6,
3-5 is more preferable. [Mixed liquid] The first agent and the second agent are mixed and prepared and used as a mixed solution. The mixing ratio of the first agent and the second agent is preferably 4: 1 to 1: 5, and more preferably 2: 1 to 1 by weight.
1: 2, most preferably 1: 1.

The compounding amount of the oxidizing agent in the mixed solution is preferably 0.1 to 5.0% by weight, more preferably 1.0.
~ 3.0 wt%. If the content is less than 0.1% by weight, melanin cannot be decolorized. On the other hand, 5.0
If it is blended in an amount exceeding the weight percentage, problems such as damage to hair occur.

The compounding amount of the oily component in the mixed solution is 1
7.5-27.0% by weight, preferably 20.0-
It is 25.0% by weight. If the blending amount is less than 17.5% by weight, good hair dyeing power and lightness cannot be obtained. On the other hand, when it exceeds 27.0% by weight, good hair dyeing power and lightness can be obtained, but dispersion stability is deteriorated and the hair becomes sticky.

The surfactant is preferably at least one of a nonionic surfactant and a cationic surfactant, and the compounding amount in the mixed solution is 1.75 to 10.
It is 0% by weight, preferably 1.5 to 5.0% by weight, more preferably 2.5 to 4.0% by weight. If this amount is less than 1.5% by weight, the dispersion stability will decrease. On the other hand, 1
Even if compounded in excess of 0.0% by weight, further improvement of dispersion stability cannot be expected.

The weight ratio of the oil component and the surfactant (weight of oil component / weight of surfactant) is set to 10.0 or less in order to obtain dispersion stability. If this weight ratio exceeds 10.0 (too much oily component), the surface of the hair is lipophilic, so that the oil content is compatible with the hair and the dyes and alkaline agents are less likely to penetrate, resulting in hair dyeing power and lightness. There is a problem of decline.
Furthermore, it becomes sticky and the feel is bad. The weight ratio is preferably 1.8 to 10.0. Even if the weight ratio is set to less than 1.8, it is difficult to obtain further dispersion stability.

The content of the nonionic surfactant in the mixed solution is preferably 1.75 to 10.0% by weight, more preferably 2.0 to 8.5% by weight, particularly preferably 4.0 to 4.0% by weight. It is 8.0% by weight. If the blending amount is less than 1.75% by weight, the emulsion stability will decrease. On the other hand, 10.0
Even if it is blended in an amount exceeding the weight percentage, further improvement of the emulsion stability cannot be expected.

The content of the cationic surfactant in the mixed solution is preferably 1.5% by weight or less, more preferably 1.0% by weight or less, and particularly preferably 0.3% by weight or less. Even if blended in excess of 1.5% by weight, no further improvement in the feel of hair can be expected.

According to the first embodiment described in detail above, the following effects are exhibited. In the hair cosmetic composition of the first embodiment, the first agent contains at least an alkanolamine, and the second agent
The agent contains at least an oxidizing agent, an oily component and a surfactant. Furthermore, 1.0 to 5.0% by weight of alkanolamine, 17.5 in the mixed liquid of the first agent and the second agent.
˜27.0 wt% oily component and 1.75 to 10.0 wt% surfactant, and the weight ratio of oily component to surfactant (weight of oily component / weight of surfactant)
Is 10.0 or less. Thereby, the accelerating action of the oxidant by the alkanolamine is improved, sufficient luminosity can be imparted only by the alkanolamine, and the pungent odor can be further reduced.

In the hair cosmetic composition according to the first embodiment, 65% by weight or more of the oily component is contained in the second agent. As a result, the concentration of the oily component in the first agent is set low, so that the alkanolamine is prevented from being distributed at a high concentration to the aqueous phase side, and the tube when the first agent is contained in the aluminum tube container is used. Corrosion of the container can be prevented.

In the hair cosmetic composition of the first embodiment, the first agent contains at least one of ammonia and ammonium salt, and its content is 0.001 to 0.370% by weight in terms of ammonia. There is. This makes it possible to obtain more sufficient lightness and hair dyeing power.

The hair cosmetic composition of the first embodiment contains at least glycerin monoalkyl ether as an oil component. This makes it possible to reduce a change in viscosity when the first agent and the second agent are mixed.

The hair cosmetic composition of the first embodiment contains at least one of a nonionic surfactant and a cationic surfactant as a surfactant. The nonionic surfactant can improve the emulsion stability, and the cationic surfactant can improve the feel of the hair. (Second Embodiment) In the following, a second embodiment in which the present invention is embodied in a hair cosmetic composition used as a hair decolorizing agent will be described focusing on parts different from the first embodiment. [First Agent] As the first agent in the present embodiment, the one obtained by removing the dye such as the oxidation dye intermediate from the first agent in the first embodiment is used. [Second Agent] As the second agent in the present embodiment, the same agent as the second agent in the first embodiment is used. [Mixed Liquid] The first agent and the second agent are mixed and prepared in the same manner as in the first embodiment and used as a mixed solution.

[0043]

EXAMPLES Next, the above-mentioned embodiment will be described more specifically with reference to Examples and Comparative Examples. (Examples 1 to 7 and Comparative Examples 1 to 7) As shown in Table 1, the first agent and the second agent were mixed and prepared at a ratio of 1: 1 to obtain an oxidative hair dye. The numerical values in Table 1 show% by weight, and the numerical values of 28% by weight aqueous ammonia are shown by weight% when converted to ammonia. The numerical value in parentheses accompanying POE in the table indicates the average number of moles of ethylene oxide added.

[0044]

[Table 1] For the oxidative hair dye of each example in Table 1, the weight ratio of the oil component and the surfactant (weight of oil component / weight of surfactant) was calculated. Furthermore, after mixing the 1st agent and the 2nd agent, it applied to the hair bundle and evaluated about the following items (1)-(5). The calculation results and evaluation results are shown in Tables 2 and 3 below.

(1) Stimulating odor By sniffing the odor of an oxidative hair dye, there is no irritating odor (⊚), there is almost no irritating odor (○), there is a slight irritating odor (△), and there is an irritating odor (×). ) The sensory evaluation was performed in four steps.

(2) Lightness The hair bundle after the hair dyeing treatment is visually observed, and the lightness of the hair dye is excellent lightness (⊚), good lightness (∘), slightly insufficient lightness (△), Sensory evaluation was carried out on four levels of insufficient brightness (x).

(3) Dyeing property The hair bundle after the hair dyeing treatment is visually observed, and the dyeing property of the oxidative hair dye is excellent (∘), good dyeing property (∘), and slightly dyeing property. (4) was inferior (Δ), and considerably poor in dyeability (×).

(4) Emulsion stability of the second agent The mixed state of the components of the second agent can be visually observed.
(◎), good (○), bad (△), bad (×)
It was judged in four stages.

(5) Operability Regarding the operability with respect to dripping / scattering when the mixture is applied to the hair bundle, good (⊚), somewhat good (∘), slightly bad (Δ), bad (x) It was judged in 4 steps.

[0050]

[Table 2]

[0051]

[Table 3] As is clear from the results of Table 2, in Examples 1 to 7, Table 3
Compared with Comparative Examples 1 to 7, the lightness and the irritating odor exhibited excellent effects. Further, the dyeability, the emulsion stability of the second agent, and the operability were also good. (Examples 8 to 14 and Comparative Examples 8 to 14) As shown in Table 4, the first agent and the second agent were mixed and prepared at a ratio of 1: 1 to obtain a hair decolorizing agent. Numerical values in Table 4 represent weight%, 28% by weight
Ammonia water values are% by weight when converted to ammonia
It is represented by. The numerical value in parentheses accompanying POE in the table indicates the average number of moles of ethylene oxide added.

[0052]

[Table 4] With respect to the hair decolorizing agent of each example in Table 4, the weight ratio of the oil component and the surfactant (weight of oil component / weight of surfactant) was calculated. Furthermore, after mixing the 1st agent and the 2nd agent, it applied to the hair bundle and evaluated about the following items (1)-(4). The calculation results and evaluation results are shown in Tables 5 and 6 below.

(1) Stimulating odor By sniffing the odor of the hair decolorizing agent, there is no stimulating odor (⊚), there is almost no irritating odor (○), there is a slight irritating odor (△), there is irritating odor (×) Sensory evaluation was carried out on four levels.

(2) Lightness By visually observing the hair bundle after the decolorization treatment, regarding the decolorization lightness, excellent lightness (⊚), good lightness (∘), lightness slightly insufficient (Δ), and lightness Sensory evaluation was performed on four levels of insufficient (x).

(3) Emulsion stability of the second agent The mixed state of the components of the second agent can be visually observed.
(◎), good (○), bad (△), bad (×)
It was judged in four stages.

(4) Operability Regarding the operability with respect to dripping / scattering when the mixture is applied to the hair bundle, good (⊚), somewhat good (∘), slightly bad (Δ), and bad (x) It was judged in 4 steps.

[0057]

[Table 5]

[0058]

[Table 6] As is clear from the results in Table 5, Examples 8 to 14 exhibited excellent effects in both brightness and irritating odor, as compared with Comparative Examples 8 to 14 in Table 6. Further, the emulsion stability and operability of the second agent were also good.

The above embodiment may be modified as follows. -Ethanol, propanol as an antifoaming agent in the first and second agents of the hair cosmetic composition in each of the above-mentioned embodiments
It may be configured to include a lower alcohol such as isopropanol, n-propanol and butanol. This makes it possible to suppress foaming during mixing and preparation.

The hair cosmetic composition in each of the above embodiments may be blended with, for example, a direct dye other than the oxidation dye intermediate, and used as a hair dye. The hair cosmetic composition in each of the above embodiments may be used not as a hair decolorizing agent but as a hair decolorizing agent for the purpose of returning the hair dyed with a hair dye or the like to the original color.

Next, the technical idea which can be understood from the above embodiment will be described below. The hair cosmetic composition according to any one of claims 1 to 5, wherein the first agent contains at least a higher alcohol as an oily component. According to this configuration, the emulsification stability can be improved by assisting the emulsification of the first agent.

[0062]

Since the present invention is constructed as described above, it has the following effects. According to the hair cosmetic composition of the first aspect of the present invention, sufficient luminosity can be imparted only by the alkanolamine and the pungent odor can be further reduced.

According to the hair cosmetic composition of the invention described in claim 2, in addition to the effect of the invention described in claim 1, corrosion of the tube container can be prevented. According to the hair cosmetic composition of the invention described in claim 3, claim 1 or claim 2
In addition to the effect of the invention described in (1), more sufficient brightness can be obtained.

According to the hair cosmetic composition of the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, a mixture of a first agent and a second agent is added. The change in viscosity over time can be reduced.

According to the hair cosmetic composition of the invention described in claim 5, in addition to the effects of the invention described in any one of claims 1 to 4, emulsion stabilization by a nonionic surfactant is achieved. And the cationic surfactant can improve the feel of the hair.

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Claims (5)

[Claims] 1. A first agent containing at least an alkanolamine and a second agent containing at least an oxidizing agent, an oily component and a surfactant are mixed and prepared at the time of use and used as an oxidative hair dye or a hair depigmenting agent. A hair cosmetic composition, wherein the mixture of the first and second agents contains 1.0 to 5.0% by weight of an alkanolamine and 17.5 to 27.% of an oily component.
0% by weight and 1.75 to 10.0% by weight of a surfactant, and the weight ratio of the oil component and the surfactant (weight of oil component / weight of surfactant) is 10.0 or less. A hair cosmetic composition comprising: 2. The hair cosmetic composition according to claim 1, wherein 65% by weight or more of the oily component is contained in the second agent. 3. The first agent contains at least one of ammonia and an ammonium salt, and the content in the first agent is 0.001 to 0.370% by weight in terms of ammonia. The cosmetic composition for hair according to item 1. 4. The hair cosmetic composition according to claim 1, wherein the oily component contains at least glycerin monoalkyl ether. 5. The hair cosmetic composition according to any one of claims 1 to 4, wherein the surfactant is at least one of a nonionic surfactant and a cationic surfactant.