JPH0940536A - Hair-decoloring agent composition of type mixed on employment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair-decoloring agent composition of type mixed on employment, excellent in the use touch and the decoloration effect and used by combining an alkali agent with an oxidizing agent on the employment. SOLUTION: This composition comprises (I) an alkali agent, (II) a surfactant arbitrarily selected from amphoteric surfactants and semipolar surfactants, (III) a higher fatty acid, (IV) an anionic surfactant, (V) an oxidizing agent, (VI) a cationic polymer and (VII) water. The first agent comprising the components I, II, III, IV and VII, and the second component comprising the component V, VI and VII are prepared, respectively. In the mixture composition, the components IV, II, III and VI are used in amounts of 5-50wt.%, 5-50wt.%, 0.1-5wt.% and 0.01-5wt.%, respectively, based on the whole weight of the composition, and the weight ratio of IV/II is 4/6 to 10/0. The first agent and the second agent are prepared so that the mixture composition produced by mixing the agents has a pH of 6-12 and a viscosity of 500cps a 30 deg.C.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a decolorizing composition for mixing when used. More specifically, the present invention relates to a depigmenting composition comprising certain ingredients in the combined state.

[0002]

2. Description of the Related Art Conventionally, a two-component type decolorizing agent has been generally used as a mixing type decolorizing agent (that is, two or more agents are combined at the time of use), and it contains an alkaline agent such as ammonia as a main agent. It is typically formed by mixing one agent and a second agent containing an oxidizing agent such as hydrogen peroxide as a main agent at the time of use. Since this mixture is applied to hair before use, the mixture must have a viscosity such that it does not drip from the hair. Therefore, in the conventional technique, a thickening system at the time of mixing is obtained by utilizing the liquid crystal region of the nonionic surfactant aqueous solution. That is, the first agent containing a nonionic surfactant and a lower alcohol having a concentration higher than the liquid crystal formation concentration is diluted with a second agent containing an oxidizing agent to adjust the concentration of the surfactant in the final mixture to the liquid crystal region. A thickening system was thus obtained. However, the conventional systems having a high concentration of nonionic surfactants and lower alcohols have the drawbacks that the feel of the hair after bleaching is dry and that it becomes liquid crystal when mixed, resulting in poor uniformity of bleaching.

[0003]

Therefore, the object of the present invention is to remove a part or all of the lower alcohol from the composition in which each component is mixed at the time of use, and to separate each component as a certain group. When it is in a mixed form, it has a relatively low viscosity, but each component shows an appropriate viscosity when it is independent or mixed together, and it is a mixed bleaching type when used ( Or to provide a hair bleaching composition.

[0004]

Although not belonging to the technical field of decolorizing agents, a composition containing an anionic surfactant, an amphoteric surfactant and / or a semipolar surfactant, and a higher fatty acid is As a skin cleanser, it is known to have an appropriate viscosity (see, for example, JP-A-5-17342 and JP-A-6-65596).

The present inventors have found that when the respective components in such a composition are prepared individually or in a specific combination with an alkaline agent and a peroxide, which are essential components of a mixing type decolorizing agent at the time of use, It has been found that each gives stable and relatively low viscosity preparations, but when all of them are mixed, a mixed composition can be provided which exhibits an excessive viscosity for the purpose of use as a depigmenting agent.

Therefore, the above object is according to the present invention:
A fresh-use type decolorizing composition in which an alkaline agent and an oxidizing agent are combined at the time of use, wherein (a) the combined composition comprises an alkaline agent (I), an optional amphoteric surfactant, and One or more kinds of surfactants (II) selected from the group consisting of semipolar surfactants, one or more kinds of higher fatty acids (III), and one or more kinds of anionic surfactants (I
V), an oxidizing agent (V), and a cationic polymer (VI)
And water (VII), and (b) prior to use components (I), (II), (III) and (I
This is achieved by providing a decolorizing composition in which the component selected from the group consisting of V) is placed in a form separated from the component selected from the group consisting of components (V) and (VI).

[0007] In a preferred embodiment of the present invention, the mixed composition component in which the respective components at the time of use are combined is adjusted to have a pH of 6-12.

[0008]

Specific Embodiments of the Invention "Mixed-before-use type" referred to in the present specification
Means that when two or more pre-prepared preparations are used,
That is, it means a mode that is mixed in the hair treatment.
Therefore, the present invention is conveniently applied to a depigmenting agent which is generally referred to as a hair depigmenting agent.

Therefore, examples of the alkaline agent (component (I)) used in the present invention include an inorganic alkali and / or an organic alkali.

Specific examples of this alkaline agent are usually
Examples thereof include aqueous ammonia, alkanolamines such as monoethanolamine, alkali hydroxides such as sodium hydroxide and potassium hydroxide, alkali carbonates such as sodium carbonate, and alkali silicates such as sodium silicate. In addition, ammonium sulfate, ammonium nitrate, ammonium chloride,
Inorganic ammonium salts such as ammonium carbonate, primary ammonium phosphate, and secondary ammonium phosphate can also be used.

The above-mentioned alkaline agents are appropriately used depending on the desired decolorizing effect, and may be used in combination depending on the case. The alkaline agent can be added so that the pH becomes 6 to 12 when mixed.

The oxidizing agent (component (V)) may be any compound or system that acts to bring about decolorization of hair by contact with the above-mentioned alkaline agent and does not adversely affect the object of the present invention. , Either can be used. It is usually preferred to use hydrogen peroxide as such compound. A system combining hydrogen peroxide and ammonium persulfate or another persulfate, or a redox system combining hydrogen peroxide and sodium pyrosulfite may be used. In such a system, hydrogen peroxide and other peroxide are separated before use.

The amount of the oxidizing agent to be used is not limited because the optimum amount varies depending on the type of the alkaline agent used, the type of each component constituting the mixed composition at the time of use, the pH, etc. When used, it is generally 0.2 to 20% by weight, preferably 1 to 5% by weight of the total composition.
It is preferable to select it so as to be wt%.

The amphoteric surfactant (component (II)) used in the present invention may be any amphoteric surfactant that is used in a usual cosmetic base or the like. To give a specific example, the general formula (A)

[0015]

Embedded image

Amidobetaine-type amphoteric surfactant represented by the formula [commercially available products include Levon 2000 (manufactured by Sanyo Chemical Co., Ltd.) and Anon BDF (manufactured by NOF Corporation)], general formula (B)

[0017]

Embedded image

Amidosulfobetaine-type amphoteric surfactant represented by the formula [commercially available products include Lonzain-CS (manufactured by Lonza) and Miratain CBS (manufactured by Milanol)]
General formula (C)

[0019]

Embedded image

A betaine-type amphoteric surfactant represented by the formula [Anon BL (manufactured by NOF CORPORATION), Deheinton A as a commercial product]
B-30 (manufactured by Henkel), etc.], general formula (D)

[0021]

Embedded image

A sulfobetaine-type amphoteric surfactant represented by [Lonzaine 12CS (manufactured by Lonza) as a commercially available product], a general formula (E)

[0023]

Embedded image

Examples include imidazolinium-type amphoteric surfactants [commercially available products include Obazoline 662-N (manufactured by Toho Chemical Co., Ltd.) and Anon GLM (manufactured by NOF CORPORATION)].

Further, a semipolar surfactant (component (II))
As the general formula (F)

[0026]

[Chemical 6]

Examples include tertiary amine oxide type semipolar surfactants represented by the following (commercially available products include Unisafe A-LM (manufactured by NOF Corporation) and Wandamine OX-100 (manufactured by Shin Nippon Rika)). It

However, in the general formulas (A) to (F), R
₁ is preferably an alkyl group or an alkenyl group having an average carbon number of 9 to 21, and an average carbon number of 11 to 17
Is more preferable, and an alkyl group or alkenyl group having an average carbon number of 11 to 13 is most preferable. When the average number of carbon atoms is less than 9, the hydrophilicity is stronger than that in the case of 9 or more, and the viscosity of the final mixed composition tends to be low. On the other hand, when it exceeds 21, the solubility in water becomes poor as compared with the case of 21 or less, and these components are contained in the final mixed composition and in the preparation containing each of the components before use. Phase separation tends to occur, resulting in poor stability of the composition.

R ₂ represents an alkyl group or an alkenyl group having an average of 10 to 18 carbon atoms. x is an integer of 2 to 4, y is an integer of 0 to 3, and z is an integer of 1 or 2.

In the present invention, any one kind or two or more kinds of these amphoteric surfactants and semipolar surfactants can be selected and used. As a preferable combination of two or more kinds, a combination of an imidazolinium betaine type amphoteric surfactant and at least one kind of another type can be mentioned.

As will be described later, when a specific type of anionic surfactant used in combination is selected, the component (I
I) may not necessarily be included in the decolorizing composition of the present invention.

The higher fatty acids (component (II
As I)), for example, any higher fatty acid represented by the following general formula (G) can be used as long as it is a higher fatty acid used in a general cosmetic base or the like.

General Formula (G) R ₃ COOH (G) Here, R ₃ is preferably a saturated or unsaturated hydrocarbon having a linear or branched chain having an average carbon number of 7 to 25 or a mercury group, and having an average carbon number of 9 To 23 saturated or unsaturated hydrocarbons having a linear or branched chain or a hydroxyl group, and having an average carbon number of 11
Most preferred are saturated and unsaturated hydrocarbons having a straight chain or branched chain or hydroxyl group of -21. If the average carbon number is less than 7,
Compared to the case of more than that, the thickening at the time of mixing is weak. On the other hand, when it exceeds 25, the solubility in one agent is small, phase separation occurs and the viscosity becomes high as compared with the case of less than 25.

Specific examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid,
Saturated fatty acids such as arachidic acid and behenic acid; 2-palmitoleic acid, petroselinic acid, oleic acid, elaidic acid,
Examples thereof include unsaturated fatty acids such as ricinoleic acid, linoleic acid, linoelaidic acid, linolenic acid, and arachidonic acid, branched fatty acids such as isostearic acid, and hydroxycarboxylic acids such as 12-hydroxystearic acid. Of these, from the viewpoints of stability and skin irritation, saturated fatty acids having 18 carbon atoms are preferable, those having a branched chain are preferable, and more preferable fatty acids that are liquid at room temperature, for example,
A saturated fatty acid having 18 carbon atoms having a methyl branch or oleic acid is preferable. Examples of commercially available products include isostearic acid (Emery # 871, # 875 (manufactured by Emery)),
Examples thereof include oleic acid (extra oil 90, 99 (manufactured by NOF CORPORATION)).

Although not restricted by the mechanism of action, when these higher fatty acids are used in combination with the above component (I), the optional component (II) and the anionic surfactant described below, It not only significantly improves the low temperature stability of the prepared composition (generally the first agent) containing but also significantly improves the viscosity of the mixed composition at the time of use.

In the present invention, any one or more of the above higher fatty acids are selected and used.

The viscosity of the mixed composition at the time of use increases with the amount of the higher fatty acid compounded, and is particularly 0.1-5% by weight.
It is preferable to mix them.

Use of higher fatty acid liquid at room temperature such as isostearic acid and oleic acid further enhanced the effect and was stable even at a low temperature of -5 ° C or lower.

The anionic surfactant (component (IV)) that can be used in the present invention is, for example, a base for soap,
Fatty acid soaps such as sodium laurate and sodium palmitate, higher alkyl sulfate ester salts such as sodium lauryl sulfate and potassium lauryl sulfate, POE lauryl sulfate triethanolamine, alkyl ether sulfates such as POE sodium lauryl sulfate and sodium lauroyl sarcosine Alkyloylalkyl taurine salts such as N-acyl sarcosinic acid, N-myristoyl-N-methyl taurine sodium and N-lauroyl-N-methyl taurine sodium, higher fatty acids such as coconut oil fatty acid methyl tauride sodium and lauryl methyl tauride sodium. Amidosulfonate, sodium phosphate ester of POE oleyl ether phosphate, phosphate ester salt of POE stearyl ether phosphate, sodium di-2-ethylhexyl sulfosuccinate , Monolauroyl monoethanolamide sodium polyoxyethylene sulfosuccinate, lauryl polypropylene glycol sulfosuccinate such as sodium sulfosuccinate, sodium linear dodecylbenzene sulfonate, triethanolamine linear dodecyl benzene sulfonate, alkylbenzene sulfone such as linear dodecyl benzene sulfonate Acid salts, monosodium N-lauroylglutamate, disodium N-stearoylglutamate, N-acylglutamates such as N-myristoyl-L-monosodium glutamate, and higher fatty acid ester sulfates such as hydrogenated coconut oil fatty acid glycerin sodium sulfate; Sulfated oil such as funnel oil, POE alkyl ether carboxylic acid, POE alkyl allyl ether carboxylate, α-o Examples include reffin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate ester salt, higher fatty acid alkylolamide sulfate ester salt, lauroyl monoethanolamide sodium succinate, N-palmitoyl aspartate ditriethanolamine, sodium caseinate and the like. To be

The "POE" in the above examples means polyoxyethylene, and usually includes those having 1 to 20 ethylene oxide units.

Of these, PO is particularly useful for improving the viscosity of the mixed composition at the time of use.
PO such as E sodium lauryl sulfate, POE lauryl sulfate triethanolamine, POE myristyl sulfate triethanolamine, and POE sodium myristyl sulfate
E alkyl ether sulfate, and N-lauroyl-
Alkyloylalkyl taurine salts such as N-methyl taurine salt and N-myristyl-N-methyl taurine salt, wherein the alkyl chain has a carbon number of any of even numbers from 10 to 18, and further α- It is an olefin sulfonate.

These conveniently usable ones can achieve the intended purpose without using the component (II) together.

According to the present invention, one or more of these anionic surfactants can be used in an appropriate combination, but in the preparation before use, it is particularly separated from the component (II) and the component (III). Used in the form. This uses a small amount of them in combination with component (II) and component (III), and prepares a pre-use preparation in a form in which the main weight is separated from component (II) and component (III). Good.

As the cationic polymer (component (VI)) used in the present invention, all the cationic polymers used in ordinary cosmetic bases and the like can be applied. If a specific example is given, general formula (H):

[0045]

[Chemical 7]

A quaternary nitrogen-containing cellulose ether derivative represented by the formula (polymers JR-400 and J are commercially available products).
R-30M and JR125 (made by Union Carbide)
Etc.), general formula (I):

[0047]

Embedded image

A diallyldimethylammonium salt / acrylamide copolymer represented by (commercially available products such as Mercoat 550 (manufactured by Merck & Calgon)), general formula (J):

[0049]

Embedded image

A poly (diallyldimethylammonium salt) derivative represented by
(Manufactured by Merck & Calgon Co., Ltd.) and the following cationic polymers, general formula (K):

[0051]

Embedded image

(In the formula, R ¹ is a hydrogen atom or a methyl group,
R ² and R ³ are each independently a hydrogen atom, a methyl group,
Ethyl group or t-butyl group, A is an oxygen atom or -N
H-group, B is an amine-containing (meth) represented by a straight-chain or side-chain alkylene group having 1 to 4 carbon atoms)
Acrylic monomer 15 to 90% by weight, general formula (L):

[0053]

Embedded image

(In the formula, R ¹ is the same as above, and R ⁴ is a general formula:

[0055]

[Chemical 12]

A group represented by the formula (wherein p represents 3 or 4) or a formula:

[0057]

Embedded image

A vinyl monomer represented by the following formula: 0 to 80% by weight, represented by the general formula (M):

[0059]

Embedded image

(Wherein R ¹ and A are the same as above, R ⁵ is a linear or side chain alkylene group having 1 to 17 carbon atoms or the general formula (N):

[0061]

Embedded image

(In the formula, n is an integer of 1 to 4 and q is 1 to 25.
A group represented by an integer) of, R ⁶ is contained 0.1 to 25% by weight represented by (meth) acryloyl group-containing monomer 1 to 60% by weight and crosslinking vinyl monomers in a hydrogen atom or a methyl group) Examples include cationic copolymers obtained by polymerizing the above-mentioned thickener monomer composition.

In the present invention, any one kind or two or more kinds of the above cationic polymers are selected and used.

The thickening effect at the time of mixing increases with the amount of the cationic polymer compounded, but if the amount exceeds 5% at the time of mixing, the thickening effect will decrease. The blending amount is preferably 0.01 to 5%, and from the thickening effect, in particular,
0.1 to 1% is preferable.

Due to the nature of the peroxide (component (V)) and the cationic polymer (component (VI)), the preparation before use according to the invention is a component (I), an optional component (II). And the combined use of component (III) with component (V) and component (VI) should be avoided. Therefore, the decolorizing agent composition mixed at the time of use of the present invention comprises the first agent as the component (I), the component (II), the component (III), the component (I).
V) and water (component VII), and it is convenient in terms of handling to provide the second agent in a two-part form prepared from component (V), component (VI) and component (VII). .

Thus, in the mixed composition at the time of use in which the respective components are combined, the component (IV) is calculated on the basis of their total weight.
And (II) in an amount of 5 to 50% by weight, and the component (II
I) 0.1 to 5% by weight, and component (VI) 0.0.
Including 1 to 5% by weight makes the viscosity of the preparation (eg, the above-mentioned first and second agents) relatively low (usually 20%).
Even though it can be maintained at 0 cps or less, the viscosity of the mixed composition at the time of use is significantly (generally 500 to 10,000).
cps, preferably 500-5000 cps, more preferably 1000-3000 cps). In addition, the said viscosity means the value measured at 30 degreeC. If the total amount of components (IV) and (II) is less than 5%, the viscosity of the mixed composition at the time of use cannot be sufficiently increased,
On the other hand, if the total amount exceeds 50%, the system of the mixed composition exhibits the behavior of forming a liquid crystal, which is not preferable.

Further, an anionic surfactant (component (I
V)) and the amphoteric surfactant and / or semipolar surfactant (component (II)) are mixed in a weight ratio of 4/6 to 10
It can be chosen to be / 0. Within this weight ratio range, a high thickening effect can be obtained within a wider pH range (specifically, pH 6 to 12) when the first agent and the second agent are mixed as described above, and they are liable to fall off during use. There is no problem.

According to the present invention, in addition to the above combination of the respective components, it is also important that the pH of the mixed composition at the time of use is adjusted to have 6-12. This is because by adjusting the pH in this way, the viscosity of the mixed composition (that is, the decolorizing agent composition at the time of use) can be appropriately maintained and the decolorizing property can be improved.

As described above, according to the present invention, before use, at least the component (I) and the optional component (I) are used.
The preparation consisting of the combination of I), component (III) and component (VII) is placed in separate form from the preparation consisting of the combination of component (V), component (VI) and component (VII). Therefore, assuming that the former preparation is the first agent and the latter preparation is the second agent, when the first agent is made alkaline and the second agent is combined (mixed) with the first agent, the pH is Can be adjusted to fall within the above range.

As described above, the pH may be adjusted by adding a pH adjusting agent of an acid or alkaline agent before mixing the first and second agents, or by adding it at the time of mixing. It is possible. In this case, the time of mixing means during or after mixing, but it is preferable to mix during mixing.

In the present invention, lower alcohols may be blended in a range that does not affect the effects of the present invention (that is, 3% by weight or less is preferable in the first decolorizing agent). Specific examples of the lower alcohol are usually ethyl alcohol,
Examples include monohydric alcohols having 2 to 5 carbon atoms such as n-propanol, isopropanol, butanol and the like. Incorporation of a lower alcohol promotes the penetration of agents such as alkali agents and oxidants, but the feel of the hair is reduced accordingly, and therefore it is often preferable not to mix. On the other hand, the conventional decolorizing agent contains a large amount of a lower alcohol in the first agent, but since the present invention can reduce the content to zero or less, it is a decolorizing agent having an excellent feeling in use even during rinsing. Become.

Other than the above, the mixed decolorizing agent of the present invention contains other hair protecting agents at the stage of its preparation or at the stage of mixing the preparations as long as the object of the present invention is not impaired.
Stabilizers, perfumes, humectants and the like can be incorporated.

As described above, the pre-use preparation and the depigmenting composition in which the preparations are combined at the time of use do not cause drooling from the hair when the final product is applied to the hair. , Shows excellent bleaching properties. Furthermore, each preparation has excellent storage stability, is easy to handle, and can be provided as a composition having a relatively low viscosity.

[0074]

EXAMPLES The present invention will be described in more detail with reference to specific examples. The parts or percentages (%) used in the examples mean (weight / weight) parts or (weight / weight)% unless otherwise specified.

First, a method for evaluating the effect of the present invention will be shown.

1) Decolorization effect test by hair strands 2 g of white hair strands were coated with 10 g of a decolorizing agent and evaluated from the relationship between the standing time and the L value. The L value is the L value in the Hunter color difference formula.

2) Decolorizing effect by panelists, comparative test for feeling of dryness The following criteria were used to evaluate the decolorizing effect of hair and the dry feeling after drying when a series of decolorizing operations were performed by 10 professional panelists.

<Decolorization effect> ++ ... Remarkably good decolorization effect and uniform decolorization + ... Good and uniform decolorization ± ... Slightly inferior decolorization effect -... Even decolorization And the decolorization effect is also low. <+ Crushing feeling> ++ ... Gives a smooth feeling without giving a feeling of smoothness. + ... No feeling of a feeling of feeling. The viscosity when the first agent and the second agent were mixed was measured using a B-type viscometer (30 ° C.).

4) Low Temperature Stability One agent (100 g) was stored in a constant temperature bath at -5 ° C. for 1 month, and the state was visually observed and evaluated according to the following criteria.

++: No change from the beginning +: No change from the beginning, but slightly thickened ±: A slight turbidity was generated-: Separation occurred Example 1, Comparative Example 1 ( (Conventional system) The first agent and the second agent of the present invention and the conventional system shown below are 1: 1.
Was mixed to adjust the decolorizing agent, and the difference in the decolorizing effect between the present invention and the conventional system was evaluated from the relationship between the standing time and the L value using a hair strand.

Further, the viscosities of the first agent, the second agent, and the mixture of both agents were measured.

[First Agent] (Formulation 1-A) (% by Weight) Polyoxyethylene (1.5) Alkyl (12, 14) Sodium Ether Sulfate 10.0 Undecyl-N-hydroxyethyl-N-carboxymethylimidazo Linium betaine 5.0 Coconut oil fatty acid amide propyl dimethylamine 5.0 Oleic acid 3.0 Propylene glycol 5.0 Monoethanolamine 2.0 Ammonia water 28% 10.0 Purified water Balance total 10.0 [First agent ] (Formulation 1-B) Polyoxyethylene (3) oleyl ether 15.0 Polyoxyethylene (4) octylphenyl ether 5.0 Ethyl alcohol 10.0 Monoethanolamine 2.0 Ammonia water (28%) 5.0 purified water balance total 100.0 second agent] (formulation 2-A) 30% aqueous hydrogen peroxide 20.0 menu Ruparaben 0.1 sodium stannate 0.1 chloride O- [2- hydroxy-3- (trimethyl ammonium Niapuropiru] hydroxycellulose Polymer JR-400 (manufactured by Union Carbide Corp.)] 1.0 Adjust purified phosphate buffer pH2 Water balance total 100.0 [Second agent] (formulation 2-B) 30% hydrogen peroxide water 20.0 Methylparaben 0.1 Sodium stannate 0.1 Phosphate buffer solution Adjusted to pH 2 Purified water Balance total 100.0 Example 1 Comparative Example 1 Comparative Example 2 1st agent Formulation 1-A Formulation 1-B Formulation 1-A 2nd agent Formulation 2-A Formulation 2-B Formulation 2-B 1st agent viscosity 170 70 170 2nd agent viscosity 40 40 15 Viscosity at the time of mixing 3200 2500 460 Dyeing property ++ ± ++ Crisp feeling ++ − ++ Low temperature stability ++ ++ The first agent of Example 1 had pH = 11.0 and viscosity. = 170c
ps, the second agent has pH = 2.0, viscosity = 40 cps, and after mixing both, pH = 9.4, viscosity = 320
It was 0 cps, and a remarkable thickening effect was recognized.

Next, using the first and second agents of Example 1, a pH adjusting agent (ammonia water or phosphoric acid) was added during mixing.
Was added to prepare a decolorizing agent having a pH of 5, 6, or 12, and the viscosity was measured to be 330 cps and 1600 c, respectively.
It was found that a decolorizing agent having a ps of 800 cps and a pH of 6 to 12 has an excellent thickening effect. Further, the ΔL values after 20 minutes of decolorization treatment are 4, 18, and 3, respectively.
It became 0, and it was found that the decolorizing effect was high in the range of pH 6-12.

Examples 2 to 25 and Comparative Examples 3 to 10 The decolorizing agents obtained by mixing the first agent and the second agent having various compositions shown in Tables 1 to 4 were evaluated by the evaluation method described above. The pH of the decolorizing agent in Tables 1 to 3 is 6 to all.
It was 12.

[0085]

[Table 1]

[0086]

[Table 2]

[0087]

[Table 3]

[0088]

[Table 4]

From the results shown in Tables 1 to 4, the decolorizing agent of the present invention is excellent in decolorizing effect, does not have a feeling of dryness, the first and second agents have low viscosities, and the viscosity after mixing is appropriate. It can be seen that the low temperature stability is also excellent. Further, in the conventional decolorizing agent, in order to obtain a high viscosity when the first agent has a low viscosity and is mixed with the second agent, as shown in Comparative Example 1, a nonionic surfactant is blended in a high concentration, The monohydric alcohol (isopropanol) is added to lower the viscosity to increase the viscosity during mixing. In the present invention, the first agent does not contain the monohydric alcohol and has a low viscosity to increase the viscosity during mixing. Can be achieved.

Examples 26 to 28 A decolorizing agent was prepared by using the first agent and the second agent having the compositions of Examples 18 to 24 shown below.
0 cps or more, decolorizing effect, dry feeling, fading,
It was confirmed that both low temperature stability and usability had excellent effects.

Example 26 (First agent) Undecyl-N-hydroxyethyl-N-carboxymethylethylimidazolinium betaine 4.0 Coconut oil fatty acid amidopropyl dimethylaminoacetic acid betaine 4.0 Lauryldimethylaminoacetic acid betaine 4.0 Isostearic acid 3.0 Keratin protein hydrolyzate 1.0 Amino-modified silicone (manufactured by Toray Industries, Inc .; SM-8702C) 3.0 Monoethanolamine 2.0 Ammonia water (28%) 10.0 Perfume Purified water Balance total 100.0 (second agent) sodium α-alkenyl (12, 13) sulfonate 12 sodium lauroylmethyl taurine 8 O- [2-hydroxy-3- (trimethylammonium) propyl] hydroxyethyl cellulose chloride 0.5 Hydrogen oxide water (30%) 20 Methylparaben Suitable Sodium stannate qs phosphate buffer pH3 adjustment Purified water balance Total 100 Example 27 (first agent) (wt%) undecyl -N- hydroxyethyl -N- carboxymethyl betaine 5.0 Coconut oil fatty acid Amidopropyl dimethylamino acetic acid betaine 3.0 oleic acid 2.0 liquid paraffin 2.0 glycerin 4.0 dimethylpolysiloxane 100cs 1.0 sodium hydroxide 1.0 ammonia water (28%) 10.0 perfume proper amount purified water balance Total 100.0 (2nd agent) Polyoxyethylene (1.5) Alkyl (12, 14) Sodium ether sulfate 15 Carboxyvinyl polymer (“Hibiswako 105”, Wako Pure Chemical Industries, Ltd.) 0.5 Hydrogen peroxide solution (30%) 20 Methylparaben Suitable amount Sodium stannate Suitable amount Phosphate buffer solution p Adjustment Purified water balance Total 100 Example 3 28 (first agent) (wt%) undecyl -N- hydroxyethyl -N- carboxymethyl betaine 1.0 Coconut oil fatty acid amide propyl dimethylamino acetic acid betaine 8. 0 isostearic acid 3.0 quaternized collagen protein hydrolyzate 1.5 myristic acid 4.0 dimethylpolysiloxane 6cs 2.0 monoethanolamine 4.0 ammonia water (28%) 12.0 perfume proper amount purified water balance total 100.0 (2nd agent) α-alkenyl (12, 13) sodium sulfonate 15 Amino-modified silicone (“Silicone SM-8702C”, manufactured by Toray Industries) 1 O- [2-hydroxy-3- (trimethylammonio) chloride ) Propyl] hydroxyethyl cellulose 0.5 hydrogen peroxide solution (30%) 2 Methylparaben qs sodium stannate qs phosphate buffer pH3 adjustment Purified water balance Total 100

[0092]

Industrial Applicability According to the present invention, it is possible to provide a decolorizing agent having a good decolorizing effect and an excellent feeling to the hair after decolorization. In particular, the present invention exhibits excellent effects as a hair decolorizing agent.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michihiro Yamaguchi 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Inside Shiseido Daiichi Research Center (72) Inventor Masaaki Yasuda 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Shiseido Daiichi Research Center Co., Ltd.

Claims (17)

[Claims] 1. A ready-to-use decolorizing composition in which an alkaline agent and an oxidizing agent are combined at the time of use, wherein (a) the combined composition is an alkaline agent (I) and an optional component. One or more kinds of surfactants (II) selected from the group consisting of amphoteric surfactants and semipolar surfactants, one or more kinds of higher fatty acids (III), and one or more kinds of anionic surfactants (IV). And (b) an oxidizing agent (V), a cationic polymer (VI), and water (VII), and (b) prior to use, the components (I), (II), (II)
The decolorizing agent composition, wherein the component selected from the group consisting of I) and (IV) is placed in a form separated from the component selected from the group consisting of components (V) and (VI). 2. A decolorizer composition according to claim 1, wherein the combined composition is adjusted to have a pH of 6-12. 3. The combined composition, based on its total weight, comprises 5 to 50% by weight of components (IV) and (II).
The decolorizing composition according to claim 1 or 2, which comprises 0.1 to 5% by weight of component (III) and 0.01 to 5% by weight of component (VI). 4. The combined composition, wherein the weight ratio of component (IV) to component (II) is 4/6 to 10 /.
The decolorizing agent composition according to any one of claims 1 to 3, which is 0. 5. The combined composition has a content of monohydric alcohol having 2 to 5 carbon atoms of 3 based on the total weight thereof.
The decolorizing agent composition according to any one of claims 1 to 3, which is contained in an amount of not more than wt%. 6. Components (I), (II) and (III)
A preparation comprising :, (IV) and (VII) as a first agent, and a preparation comprising components (V), (VI) and (VII) as a second agent. The decolorizing agent composition in any one of -5. 7. The component (II) comprises an imidazolinium betaine-type amphoteric surfactant, an amidobetaine-type amphoteric surfactant, an amide sulfobetaine-type amphoteric surfactant, a betaine-type amphoteric surfactant, and a sulfobetaine-type surfactant. The decolorizing composition according to any one of claims 1 to 3, comprising at least one kind of a surfactant selected from the group of amphoteric surfactants and tertiary amine oxide type semipolar surfactants. 8. The component (II) comprises at least one imidazolinium betaine-type amphoteric surfactant, an amidobetaine-type amphoteric surfactant, an amidesulfobetaine-type amphoteric surfactant, and a betaine-type amphoteric surfactant. The decolorizing composition according to any one of claims 1 to 3, which is a mixture with at least one selected from the group consisting of a sulfobetaine-type amphoteric surfactant and a tertiary amine oxide-type semipolar surfactant. . 9. The component (III) has 7 to 25 carbon atoms,
The decolorizing agent composition according to any one of claims 1 to 3, comprising at least one higher fatty acid composed of a straight chain or branched chain saturated or unsaturated hydrocarbon optionally having a hydroxyl group. Stuff. 10. Component (IV) is polyoxyalkylene alkyl ether sulfate alkyl ether sulfate, α-
The decolorizing agent composition according to any one of claims 1 to 3, which comprises one or more surfactants selected from the group consisting of olefin sulfonates and alkyloylalkyl taurine salts. 11. A surfactant selected from the group consisting of polyoxyethylene alkyl ether sulfates and alkyl ether sulfates, wherein component (IV) has an even numbered alkyl chain of 10 to 18 carbon atoms. The decolorizing agent composition according to any one of claims 1 to 3, which comprises at least one of the following. 12. The component (VI) comprises one or more polymers selected from the group consisting of quaternary nitrogen-containing cellulose derivatives, diallyldimethylammonium salt / acrylamide copolymers and poly (diallyldimethylammonium salt) derivatives. The decolorizing agent composition according to any one of claims 1 to 3, which comprises: 13. The combined composition, wherein the weight ratio of component (IV) to component (II) is from 4/6 to 6/4.
And the pH is 6 or more and less than 8, and the decolorizing agent composition according to claim 1. 14. The decolorizing agent according to claim 8, wherein the combined composition has a weight ratio of component (IV) to component (II) of 4/6 to 6/4 and a pH of 8 to 12. Composition. 15. The combined composition, wherein the weight ratio of component (IV) to component (II) is 6/4 to 10/0.
The decolorizing agent composition according to claim 11, which is 16. The combined composition comprises the components (I
The decolorizing composition according to claim 15, which does not contain I). 17. The combined composition has a viscosity of 30.
The decolorizing composition according to any one of claims 1 to 16, which has a temperature of 500 cps at a temperature of 0 ° C.