JP2006169203A - Hair bleaching agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair bleaching agent enabling easy confirmation of the homogeneous mixing of ingredients in use by coloring the 3rd agent of a three-pack type hair bleaching agent with a specific coloring agent. <P>SOLUTION: The hair bleaching agent is composed of the 1st agent containing an alkaline agent, the 2nd agent containing hydrogen peroxide and the 3rd agent containing a persulfuric acid salt and one or more coloring agents selected from chromium oxide, ultramarine blue and red iron oxide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hair bleaching agent, and more particularly, to a three-component hair bleaching agent that allows easy visual confirmation of uniform mixing during preparation for use.

  The hair bleaching agent is a one-part type that uses only an oxidizing agent without using an alkaline agent, and mixes a first agent mainly composed of an alkaline agent and a second agent mainly composed of an oxidizing agent when used. There are two-part formulas, and three-part formulas in which the first and second parts of the two-part formula are mixed with a third part composed mainly of a decoloring aid such as persulfate. Among these, the three-component hair bleaching agent accelerates the decomposition reaction of the oxidizing agent, and the oxygen generated by this reaction accelerates the decomposition of melanin inside the hair, so it has an excellent decoloring effect in a short time. can get.

  However, since the three-component hair bleaching agent accelerates the decomposition reaction of the oxidant, it may cause intense foaming or heat generation during mixing. One reason for this problem is that if the mixing is insufficient, the decoloring aid becomes locally high in concentration and an abnormal reaction occurs. In order to prevent this, it is only necessary to mix each agent uniformly. However, since the third agent is powdery in addition to the difference in viscosity and specific gravity between the first agent and the second agent, mixing is insufficient. easy. In addition, since each agent used is also transparent or white, there is a problem that it cannot be easily visually confirmed whether or not it is uniformly mixed.

  On the other hand, as a technique for easily confirming the mixing property of multiple agents, a hydrogen peroxide-containing composition in which an aromatic nitro compound coexists in a second agent containing hydrogen peroxide (see Patent Document 1), A two-component foam hair dye composition (see Patent Document 2) in which one of the agent and the second agent is colored with an acid dye has been proposed. However, since the hair bleaching agent decomposes and decolorizes the melanin pigment in the hair, it is not preferable to use an aromatic nitro compound or an acidic dye. When used in the third agent, there is a problem that the storage stability is inferior due to the effect of the persulfate to be incorporated.

Japanese Examined Patent Publication No. 4-66448 JP-A-10-287534

  Thus, as a result of intensive studies by the present inventors, in a three-part hair bleaching agent, when the third agent containing a persulfate is colored with a specific colorant, the colored third agent is storage stable. When mixing each agent, it can be easily confirmed visually that each agent has been mixed, and when the hair is decolorized, it is affected by the effects of these colorants on the hair. As a result, the present invention has been completed.

That is, the invention according to claim 1 includes a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and one or more colorants selected from the group consisting of chromium oxide, ultramarine blue, and bengara. The present invention relates to a hair bleaching agent comprising a third agent containing persulfate.
The invention according to claim 2 relates to the hair bleaching agent according to claim 1, wherein the content of the colorant is 0.01 to 10% by weight in the third agent.
The invention according to claim 3 relates to the hair bleaching agent according to claim 1 or 2, wherein the first agent and the second agent are liquid, and the third agent is in powder form.
The invention which concerns on Claim 4 is related with the hair decoloring agent in any one of Claims 1-3 mix-blended in an applicator.

  In the hair bleaching agent of the present invention, when the third agent is colored with a specific colorant, the colored third agent is excellent in storage stability, and it is easily confirmed visually that each agent is mixed uniformly. can do. Thereby, when the mixing of the first agent and the second agent due to the difference in viscosity or specific gravity is insufficient, or when the mixing of the liquid first agent and the second agent with the powdery third agent is insufficient. Even in such a case, uneven mixing can be easily visually recognized, so that abnormal foaming and heat generation during mixing preparation can be prevented, and a highly safe three-part hair bleaching agent can be provided. it can.

  The hair bleaching agent according to the present invention comprises a first agent containing an alkaline agent, a second agent containing hydrogen peroxide, and at least one colorant selected from the group consisting of chromium oxide, ultramarine blue and red rose. And a third agent containing sulfate. By having such a configuration, it is possible to easily visually confirm that each agent is uniformly mixed during preparation of mixing.

  Examples of the alkaline agent used in the first agent include ammonia, isopropanolamine, monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol, sodium hydroxide, sodium carbonate, ammonium carbonate, Examples thereof include sodium silicate, arginine, and the like, and one of these can be used alone, or two or more can be used in combination.

  The content thereof is preferably 1 to 50% by weight in the first agent, and more preferably 5 to 45% by weight. When the content is less than 1% by weight, a sufficient decoloring effect cannot be obtained. When the content exceeds 50% by weight, skin irritation of the scalp occurs during use, and the irritating odor of the alkaline agent becomes too strong. Therefore, it is not preferable in either case.

  The first agent contains oily ingredients, surfactants, silicones, polyhydric alcohols, thickeners, moisturizers, animal and plant extracts, fragrances, water, etc., as long as the decolorization effect is not impaired. It can mix | blend suitably according to it.

  As the hydrogen peroxide used for the second agent, hydrogen peroxide water is usually used. The content of hydrogen peroxide is preferably 0.1 to 10% by weight in the second agent, and more preferably 1 to 6% by weight. If the content is less than 0.1% by weight, it is inferior in the depigmenting power of hair, and if it contains more than 10% by weight, there are problems in safety such as skin irritation. Absent.

  In the second agent, polyhydric alcohols, silicones, surfactants, moisturizers, hydrogen peroxide stabilizers, organic or inorganic acids, pH adjusters, water, etc., as long as the decolorization effect is not impaired. Can be appropriately blended depending on the purpose.

  The third agent contains a colorant and a persulfate. Coloring agents used are chromium oxide, ultramarine, and red rose. One of these colorants may be used alone or in combination of two or more. The third agent is colored by these colorants, and even if the powdery third agent is added to the liquid first agent and second agent, it should be visually confirmed that each agent has been uniformly mixed. Can do.

  The content of the coloring agent is preferably 0.01 to 10% by weight in the third agent, and more preferably 0.01 to 2% by weight. If the content is less than 0.01% by weight, the degree of coloring is low, making it difficult to visually recognize the mixing of each agent. If the content exceeds 10% by weight, the coloring degree becomes too large. In this case, it is not preferable in any case.

  Examples of the persulfate used for the third agent include ammonium persulfate, sodium persulfate, and potassium persulfate. The content is preferably 10 to 99% by weight in the third agent, and more preferably 20 to 80% by weight. If the content is less than 10% by weight, a sufficient decoloring power cannot be obtained. If the content exceeds 99% by weight, excessive heat generation may occur during mixing preparation. It is not preferable.

  In the third agent, other than water such as oil components, alkali agents, stabilizers, chelating agents, thickeners, moisturizers, excipients, preservatives, UV absorbers, etc., within the range not impairing the effects of the present invention. These components can be appropriately blended according to the purpose. In addition, coloring with the said coloring agent of the 3rd agent is achieved by adding another component to persulfate as desired, adding a coloring agent, and mixing uniformly.

  The hair bleaching agent of the present invention is used by uniformly mixing each agent at the time of use. For mixing, the third agent is usually added to the second agent, and then the first agent is mixed. For example, 1-6 in an applicator filled with 4 to 16 parts by weight of the second agent. After adding 3 parts by weight of the third agent, 2 to 10 parts by weight of the first agent is added, and the mixture is sealed and shaken uniformly. In this case, the dosage form of the first agent and the second agent is a liquid having fluidity such as an emulsion, a gel, or a cream, and a powdered dosage form is used as the third agent. In addition, the mixing method of the 1st agent-the 3rd agent is not limited to the said mixing order.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to this Example. The blending amount is wt% unless otherwise specified.

(Sample preparation)
According to the composition described in Tables 1-2, each powdery 3rd agent of the Example and the comparative example was prepared by the usual method, respectively, and it used for the following evaluation test.

(Test Example 1; storage stability)
Each sample of Examples 1 to 6 and Comparative Examples 1 to 7 shown in Tables 1 and 2 was stored for 6 months under the condition of 40 ° C., and the degree of discoloration was visually evaluated according to the following evaluation criteria. The results are shown in Tables 1-2.
<Evaluation criteria>
○: Discoloration is not recognized.
Δ: Slight discoloration is observed.
X: Discoloration is recognized.

  From the results of Table 1 and Table 2, when the third agent containing persulfate is colored with a specific colorant such as ultramarine, chromium oxide, bengara, etc., the colored color does not change even during long-term storage, It can be seen that the storage stability is excellent.

(Test Example 2: Mixability confirmation test)
10 parts by weight of a liquid second agent prepared according to the following composition is filled in the applicator, and 2 parts by weight of each powdery third agent of Examples 1 to 6 and Comparative Example 1 are added. 5 parts by weight of the agent was added, and the mixing property of the contents was confirmed every several shakes, and it was visually evaluated whether uniform mixing was performed. The results are shown in Table 3.
<Evaluation criteria>
○: Mixability can be easily confirmed.
Δ: Mixability is slightly difficult to confirm.
X: It is difficult to confirm the mixing property.

<First Agent>
Cetanol 10.0
Polyoxyethylene oleyl ether 5.0
Propylene glycol 10.0
Behenyltrimethylammonium chloride 5.0
EDTA 0.5
Ammonia water (28%) 6.0
Purified water residue Total 100.0

<Second agent>
Hydrogen peroxide (35%) 15.0
Phenacetin 1.0
Phosphoric acid 0.5
Sodium dihydrogen phosphate 0.2
Purified water residue Total 100.0

  From the results in Table 3, it can be seen that the hair bleaching agent of the present invention can easily visually confirm the uniform mixing property of each agent.

Example 7
<First Agent: Liquid>
Oleic acid 20.0
Polyoxyethylene oleyl ether 15.0
Isopropyl alcohol 10.0
EDTA 0.5
Ammonia water (28%) 10.0
Purified water residue Total 100.0
<Second agent: Liquid>
Hydrogen peroxide (35%) 15.0
Phenacetin 1.0
Phosphoric acid 0.5
Sodium dihydrogen phosphate 0.2
Purified water residue Total 100.0
<Third agent: powder>
Potassium persulfate 25.0
Ammonium persulfate 20.0
Sodium metasilicate 20.0
Magnesium stearate 10.0
Sodium carboxymethyl cellulose 10.0
Silica anhydride 13.5
EDTA 1.0
Chromium oxide 0.5
Total 100.0

  Although the said 3rd agent was preserve | saved at 40 degreeC for 6 months, the light green of the initial stage was maintained, without discoloring. Further, 2 parts by weight of the third agent was added to 10 parts by weight of the second agent, and 5 parts by weight of the first agent was added, and as a result of confirming the mixing property, it was easily visually confirmed that the mixture was uniformly mixed. .

Example 8
<First Agent: Cream>
Cetanol 9.0
Polyoxyethylene oleyl ether 5.0
Oleic acid 3.0
Polyoxyethylene cetyl ether 3.0
Behenyltrimethylammonium chloride 7.5
Propylene glycol 5.0
EDTA 0.5
Ammonia water (28%) 10.0
Purified water residue Total 100.0
<Second agent: Liquid>
Hydrogen peroxide (35%) 15.0
Phenacetin 1.0
Phosphoric acid 0.5
Sodium dihydrogen phosphate 0.2
Purified water residue Total 100.0
<Third agent: powder>
Potassium persulfate 50.0
Ammonium persulfate 15.0
Sodium persulfate 5.0
Sodium metasilicate 15.0
Magnesium carbonate 5.0
Sodium carboxymethylcellulose 2.0
Silicic anhydride 7.4
EDTA 0.5
Ultramarine 0.1
Total 100.0

  Although the said 3rd agent was preserve | saved at 40 degreeC for 6 months, the initial blue was maintained, without discoloring. In addition, 2 parts by weight of the third agent was added to 10 parts by weight of the second agent, and 5 parts by weight of the first agent was added. Then, as a result of confirming the mixing property, it was easily visually confirmed that the mixture was uniformly mixed.

The hair bleaching agent of the present invention can be easily used for a three-component hair bleaching agent using a bleaching auxiliary agent since the uniform mixing property can be easily visually confirmed.

Claims (4)

A first agent containing an alkali agent, a second agent containing hydrogen peroxide, a third agent containing one or more colorants selected from the group consisting of chromium oxide, ultramarine blue and red rose and persulfate. A hair bleaching agent consisting of The hair bleaching agent according to claim 1, wherein the content of the colorant is 0.01 to 10% by weight in the third agent. The hair bleaching agent according to claim 1 or 2, wherein the first agent and the second agent are liquid, and the third agent is in powder form. The hair bleaching agent according to any one of claims 1 to 3, which is mixed and prepared in an applicator.