JP2001354529A - Semipermanent hair dye composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a semipermanent hair dye composition stably mixable with a direct dye, having a slight change in viscosity with time, capable of maintaining a viscosity suitable for a hair dyeing operation for ever. SOLUTION: This semipermanent hair dye composition is characterized by comprising (A) hydroxyethanediphosphonic acid and/or its salt, (B) a water-soluble polymer compound selected from (b-1) a hydroxyalkyl cellulose and sodium carboxymethylcellulose or (b-2) one or more kind selected from a carboxyvinyl polymer, a polyacrylic acid, its salt or an acrylic acid/methacrylic acid alkyl copolymer and (C) a direct dye.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-permanent hair dye composition, and more particularly, to a dye and a dye having excellent viscosity stability.
The present invention also relates to a hair dye composition having good adhesion to hair and excellent operability.

[0002]

2. Description of the Related Art Conventionally, semi-permanent hair dyes using direct dyes are inferior in fastness compared to permanent hair dyes using oxidative dyes, but are excellent in safety and simplicity. I have.

[0003]

A semi-permanent hair dye using a direct dye is usually adjusted to an appropriate viscosity using a thickener, but a semi-permanent hair dye having good viscosity stability that can withstand long-term storage. Because there was no, immediately after production, even if the viscosity was suitable for application, those stored for a long period of time decreased in viscosity and became liquid, or increased in viscosity due to gelation and became hard,
In any case, there is a problem that the viscosity becomes unsuitable for application to hair. As a result, the operability deteriorates, and if the hair dye is applied to the hair even when it is usually applied, or if the hair dye drips onto the skin after application, the dye is dyed on the skin and it is difficult to fall off, it remains forever In some cases, the problem of semi-permanent hair dyes was promoted.

Further, direct dyes used for semi-permanent hair dyes are weak to sunlight, and if stored for a long time in a place such as a window where direct sunlight is easily applied, the dye may be decomposed to change color or disappear. Yes, close attention had to be paid to the materials and storage conditions of the storage containers.

An object of the present invention is to provide a semi-permanent hair dye composition which solves the above-mentioned problems, can stably blend a direct dye, has little change in viscosity over time, and maintains a viscosity suitable for a hair dyeing operation forever. And

[0006]

Means for Solving the Problems In the semi-permanent hair dye composition, the present inventors have proposed a hydroxyalkyl cellulose and sodium carboxymethyl cellulose or carboxyvinyl polymer, polyacrylic acid and its salts or acrylic acid. One or more water-soluble polymer compounds (B) selected from alkyl methacrylate copolymers are blended, and one or more selected from the group (A) consisting of hydroxyethanediphosphonic acid and salts thereof The present inventors have found that the above-mentioned problems can be solved by containing, and have completed the present invention.

That is, the present invention provides the following component (A):
(B) and (C); (A) hydroxyethanediphosphonic acid and / or a salt thereof, (B) a water-soluble polymer compound selected from the following (b-1) hydroxyalkyl cellulose and sodium carboxymethyl cellulose, or ( b-2) A semi-permanent hair dye composition characterized by containing one or more selected from carboxyvinyl polymer, polyacrylic acid and salts thereof, or acrylic acid / alkyl methacrylate copolymer (C) direct dye. Is what you do. Hereinafter, the configuration of the present invention will be described in detail.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The amount of hydroxyethanediphosphonic acid and salts thereof according to the present invention is preferably 0.005 to 5% by weight. If it is less than 0.005% by weight, sufficient stability cannot be obtained, and if it exceeds 5% by weight, no further effect can be obtained, so that it is not economical. The lower limit of the amount is preferably 0.02% by weight, and more excellent stability can be obtained by adding 0.02% by weight or more. The upper limit is preferably 3% by weight, and if it exceeds 3% by weight, the effect of increasing stability is reduced. As the salt, for example, a tetrasodium salt or a tetrapotassium salt is used. Commercially available products include Henkel Japan Co., Ltd., Tarpinal SL, 4NL, and Lion Co., Ltd., Ferriox 115, 116.

[0009] Hydroxyethane diphosphonic acid is commonly used as a chelating agent. It is thought that the effect of the acidic hair dye of the present invention on the stabilizing effect of the coloring matter and the viscosity is affected by the chelating action of hydroxyethanediphosphonic acid.Other chelating agents such as edetic acid and salts thereof and ethylenediaminehydroxyethyl Those widely used, such as trisodium triacetate, do not exhibit the effects of the present invention. From these facts, in addition to the chelating action, it seems that some action specific to hydroxyethanediphosphonic acid is involved, but the details are unknown.

The effect of stabilizing the viscosity in the present invention is as follows: hydroxyalkyl cellulose and sodium carboxymethyl cellulose, or carboxyvinyl polymer,
This is remarkable in a semi-permanent hair dye composition thickened with one or more water-soluble polymer compounds selected from polyacrylic acid and salts thereof or acrylic acid / alkyl methacrylate copolymer. When the semi-permanent hair dye composition of the present invention is thickened with another water-soluble polymer compound, the effect of stabilizing the pigment is sufficiently exhibited, but the effect of improving the stability of viscosity cannot be expected.

Among them, (b-1) the use of hydroxyalkylcellulose and sodium carboxymethylcellulose is particularly excellent in the effect of stabilizing the viscosity. On the other hand, when used alone, the viscosity stability is maintained. Have difficulty.

As the hydroxyalkyl cellulose,
Hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose and the like can be mentioned.

The amounts of these water-soluble polymer compounds are as follows:
From the viewpoint of ensuring operability and viscosity stability, it is preferable that the content be 0.1%.
05 to 20% by weight, more preferably 0.5 to 10% by weight
It is.

For example, the compounding amount of sodium carboxymethylcellulose is 0.05 to 5% by weight, the compounding amount of hydroxyalkyl cellulose is 0.5 to 7% by weight, and the compounding weight ratio is 1: 1 to 1:20. Is preferred.

The content of (b-2) a carboxyvinyl polymer, polyacrylic acid and salts thereof, or a synthetic water-soluble polymer compound such as an acrylic acid / alkyl methacrylate copolymer is preferably 0.5 to 5% by weight. And, even if these are used alone, the effect is sufficiently exhibited, but when two or more kinds are used in combination, the viscosity can be further stabilized.

In the present invention, as the direct dye, conventionally known direct dyes can be appropriately selected according to the desired dyeing and coloring. If necessary, two or more dyes may be used in combination. These direct dyes include nitroparaphenylenediamine, paranitroorthophenylenediamine, paranitrometaphenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol,
Picramic acid, N1, N4, N4-tris (2-hydroxyethyl) -2-nitroparaphenylenediamine, 4
-[(2-nitrophenyl) amino] phenol, N1
-(2-hydroxyethyl) -2-nitroparaphenylenediamine, 2,2 ′-[(4-amino-3-nitrophenyl) imino] bisethanol, N- (2-hydroxyethyl) -2-nitroaniline, 2-[[2- (2-
Hydroxyethoxy) -4-nitrophenyl] amino]
Ethanol, N1- (2-hydroxyethyl) -4-nitroorthophenylenediamine and salts thereof, acidity specified by "Ministerial Ordinance for Tar Colors that can be used in Pharmaceuticals, etc." Dyes: Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106
Red No. 201, Red No. 227, Red No. 230 (1), Red No. 230 (2), Red No. 231 and Red No. 2
No. 32, Red No. 401, Red No. 502, Red No. 503,
Red No. 504, Red No. 506, Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 20
No. 3, Yellow 402, Yellow 403 (1), Yellow 40
No. 6, yellow 407, orange 205, orange 207, orange 402, green 3, green 204
No., Green No. 205, Green No. 401, Green No. 402, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 2
No. 03, Blue No. 205, Brown No. 201, Black No. 401 and the like.

The content of the direct dye is 0.01 to 5% by weight. When the amount of the direct dye is less than 0.01% by weight, the hair dyeing effect becomes insufficient. On the other hand, when the amount is more than 5% by weight, no further dyeing effect can be expected, and Not only does the dyeing become noticeable, but also the discoloration after hair dyeing increases.

Further, an aromatic alcohol can be used to enhance the dyeing property. For example, benzyl alcohol, nonylphenoxyethanol, octylphenoxyethanol, γ-phenylpropyl alcohol, cinnamon alcohol, anis alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, benzyloxyethanol, phenoxyethanol, and the like, Its content is 1-15
% By weight. Particularly, benzyl alcohol, benzyloxyethanol and phenoxyethanol are preferred.

As the solvent, lower alcohols such as ethanol, propanol and isopropanol, N-methyl-2-pyrrolidone, levulinic acid, ethylene carbonate and the like can be appropriately blended. These may be used in combination of two or more.

In addition, oils, surfactants, hair styling bases, various protein hydrolysates, hair restorers, and the like, which are usually used in the cosmetics field, as long as the effects of the present invention are not impaired.
An ultraviolet absorber, a preservative, a fragrance and the like can be added. Among them, oils include paraffin oil, fatty acids, fatty acid esters, higher fatty alcohols and triglycerides, and surfactants include nonionic, anionic, cationic and amphoteric surfactants. Examples of the hairdressing base include silicone derivatives, a hair fixing resin, and a cationized polymer.

The pH of the semi-permanent hair dye composition thus prepared is appropriately adjusted depending on the type of the dye to be used. When an acid dye is used, it is essential to adjust the pH to 2 to 5 in order to obtain good hair dyeing power. Also, when using other direct dyes such as nitro dyes,
The dyeing power of the dye is most effectively exhibited, for example, pH
Adjusted to 5-10. pH is adjusted with a suitable acid or base. In any case, at any pH,
The effects of the present invention are sufficiently exhibited.

The hair dyeing method is the same as that of a normal semi-permanent hair dye. An appropriate amount is applied to the hair, left at room temperature or while heating for 10 to 40 minutes, washed with warm water, shampooed and dried with a dryer. . In addition, a slow dyeing type may be used. For example, by setting the leaving time after applying the hair dye solution to the hair to 5 to 10 minutes and repeating the hair dyeing two to several times, the gray hair can be gradually dyed black without being noticed by a person.

Next, in order to clarify the configuration and operation of the present invention described above, the present invention will be described in detail with reference to preferred embodiments. However, the present invention is not limited to the following embodiments. Absent.

[0024]

EXAMPLES Examples 1-2 The compositions of Examples 1-2 and Comparative Examples 1-4 are shown in Table 1. However, the unit of the composition ratio in the table is% by weight. Each semi-permanent hair dye composition was prepared by a conventional method.

[0025]

[Table 1]

The compositions of Examples 1 and 2 and Comparative Examples 1 to 4 were tested for storage stability. <Dye stability> Each of the compositions was filled in a glass bottle and left for two weeks near a sunny window on the south side of the laboratory to observe changes in dye. The judgment was made visually and evaluated according to the following criteria. ：: No change Δ: Light color / color tone changes ×: Color disappears

<Viscosity Stability> Each composition was filled in a glass bottle and stored in a high-temperature bath at 50 ° C. for one month. This test is a method to reproduce the results of long-term storage at room temperature in a short term. In this test, changes in the viscosity and viscosity of each composition were observed. Viscosity is measured with a B-type viscometer,
Evaluation was made according to the following criteria. In addition, although the value in the parentheses depends on the degree of change in viscosity, the operability was roughly shown. ◎: 95 to 105% (no change in operability) ：: 70 to 95 or 105 to 150% (no problem in operability) Δ: 40 to 70 or 150 to 200% (decrease in operability,
Caution: X: less than 40% or more than 180% (improper operability)
Table 1 shows the results.

In Examples 1 and 2 of the present invention, semi-permanent hair dye compositions having excellent dye stability and viscosity stability were obtained. On the other hand, as is evident from the results of Comparative Examples 1 to 4, hydroxyethylcellulose, those containing only either hydroxypropylmethylcellulose or sodium carboxymethylcellulose cannot ensure the stability of viscosity, and also have hydroxyethanediphosphonic acid. Those substituted with trisodium ethylenediaminehydroxyethyltriacetate could not secure the viscosity and the stability of the dye. Further, a composition was prepared by simply removing hydroxyethanediphosphonic acid from Example 1, and the same test was conducted. However, neither dye stability nor viscosity stability could be secured.

Examples 3 to 5 The compositions of Examples 3 to 5 and Comparative Examples 5 to 7 are shown in Table 2. Each semi-permanent hair dye composition was prepared by a conventional method, and a storage stability test was performed and evaluated in the same manner as described above. Table 2 shows the results.

[0030]

[Table 2]

Carboxyvinyl polymer and acrylic acid
Alkyl methacrylate copolymer, when combined with hydroxyethanediphosphonic acid, shows stability without any problem in use even when used alone, but when used in combination, viscosity stability can be significantly improved. Understand. Further, even when hydroxyethanediphosphonic acid was blended, Comparative Examples 6 and 7, in which the water-soluble polymer compound was not appropriately selected, could not maintain the viscosity stability.

Example 6 Weight% Hydroxyethanediphosphonic acid 0.1 Nitroparaphenylenediamine 1.0 1,4-Diaminoanthraquinone 1.5 Benzyloxyethanol 5.0 Ethanol 15.0 Stearyltrimethylammonium chloride 0.3 Hydroxy Ethylcellulose 2.0 Carboxymethylcellulose sodium 0.5 pH adjuster Amount to be adjusted to pH 7.5 Purified water qs

Example 7 Weight% Hydroxyethanediphosphonic acid 0.2 Nitroparaphenylenediamine 1.5 Paranitroorthophenylenediamine 0.5 Monoethanolamine thioglycolate 1.0 Polyethylene glycol 1500 5.0 Monoethanolamine 1 2.0 Carboxyvinyl polymer 2.0 Hydroxyethylcellulose hydroxypropyl trimethylammonium chloride ether 0.5 pH adjuster Amount to make pH 9.0 Purified water Appropriate amount

In Examples 6 and 7, similarly to Example 1, there was little change over time in the dye and the viscosity, and the viscosity suitable for the hair dyeing operation could be maintained for a long period of time.

[0035]

According to the semi-permanent hair dye composition of the present invention,
Direct dye can be compounded stably, viscosity change with time is small,
It has a very desirable effect of maintaining a viscosity suitable for the hair dyeing operation forever.

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Claims (1)

[Claims] 1. The following components (A), (B) and (C): (A) hydroxyethanediphosphonic acid and / or a salt thereof, (B) a water-soluble polymer compound selected from the following (b-1) ) Containing at least one selected from hydroxyalkyl cellulose and sodium carboxymethyl cellulose, or (b-2) carboxyvinyl polymer, polyacrylic acid and salts thereof, or acrylic acid / alkyl methacrylate copolymer (C) direct dye A semi-permanent hair dye composition, characterized in that: