JPH11302556A - Powder dye composition and hair dye composition containing the composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition capable of improving the long period stability, flowability and dustability of a dye to improve operability and work environment on the preparation of a hair dye composition and useful as a component for the powder hair dye composition by adding a dispersant to the dye a specific rate. SOLUTION: This powder dye composition comprises formulating (B) 0.2-20 wt.% of a dispersant [for example, a stearic acid metal salt, a silicate (metal salt), talc, a sucrose fatty acid ester, crystal cellulose] and (A) >=80 wt.% of a dye (for example, a main intermediate such as p-phenylene diamine or toluene-2,5-diamine, a direct dye such as 4-nitro-o or p-phenylenediamine, a coupler such as m-aminophenol or resorcinol).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder dye composition, and more particularly to a powder dye composition which can be stably stored for a long period of time and is suitable for preparing a hair dye composition, and a hair dye containing the composition. It relates to a composition.

[0002]

2. Description of the Related Art Oxidation dyes commonly used in oxidation hair dyes, for example, p-phenylenediamine, toluene-
2,5-Diamine and m-phenylenediamine are unstable compounds which are easily oxidized by oxygen in the air, and cause deterioration such as a decrease in purity or a blackening of appearance during storage. However, there is a problem that the material cannot be used as a raw material.

[0003] At present, these problems have been dealt with by using packaging forms that avoid contact with air or by using dyes such as sulfates and hydrochlorides.

[0004] Hair dyes containing these dyes include:
There are liquid, cream, gel, aerosol and powder forms. In hair dyes such as liquid, cream, gel, and aerosol, the dye is dissolved in the base material, and a reducing agent is further added to stabilize the dissolved dye. Is common. On the other hand, in a powdery hair dye, the dye is usually mixed with the base as it is.

[0005]

However, the use of sulfates or hydrochlorides as dyes has not sufficiently improved the stability. Also, due to their properties, these oxidation dyes have problems such as caking and lumps during storage, and furthermore, there has been a problem of scattering of the dye at the stage of producing the hair dye. In particular, in the case of a powder hair dye containing a large amount of an oxidation dye, the flowability and dispersibility of the hair dye itself are deteriorated, and there are problems such as a reduction in production efficiency due to production inconvenience. .

[0006]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, by adding a specific dispersant to the oxidation dye, the stability and the scattering property of the oxidation dye have been improved. The present inventors have found that it has been improved and that a hair dye composition can be prepared by a simple operation using the same at the time of use, thereby completing the present invention. That is, the following components (A) and (B): a powder dye composition comprising at least 80% by weight of the (A) dye and (B) 0.2 to 20% by weight of the dispersant; It is a hair dye composition blended.

[0007] As a secondary effect of the present invention, as a result of improving the scattering property of the oxidation dye, the rise of the dye when preparing the hair dye composition is reduced, and the working environment is greatly improved. Furthermore, the powder hair dye composition prepared using the powder dye composition of the present invention has good fluidity and dispersibility, so that inconvenience in production can be eliminated and production efficiency can be improved.

Hereinafter, the present invention will be described in detail.

The component (A) dyes used in the present invention are those conventionally used in hair dyes and include, for example, main intermediates, direct dyes and couplers. As specific examples, the main intermediates include p-phenylenediamine, toluene-2,5-diamine, N, N-bis (β-hydroxyethyl) -p-phenylenediamine, 2-chloro-p-phenylenediamine, o -Aminophenol, p-aminophenol, p-methylaminophenol and salts thereof are, for direct dyes, 4-
Nitro-o-phenylenediamine, nitro-p-phenylenediamine, picramic acid and salts thereof, and dyes specified by "Ministerial Ordinance for Specifying Tar Dyes that can be Used in Pharmaceuticals, etc." Legal coupler), and couplers such as m-aminophenol, resorcinol, 2-chlororesorcinol,
Methylresorcinol, m-phenylenediamine, 2,4-
Diaminophenetol, 2-amino-4-hydroxyethylaminoanisole, 2,4-diaminophenoxyethanol, 1-naphthol, 1,5-dihydroxynaphthalene, 2,6-diaminopyridine, 5-amino-2-
Examples include methylphenol, 5- (2-hydroxyethylamino) -2-methylphenol and salts thereof.

The amount of these dyes in the powder dye composition is at least 80% by weight, and preferably at least 90% by weight from the viewpoint of use in the hair dye composition. Further, in addition to the above-mentioned dyes, dyes listed in “Quasi-drug Raw Material Standards” (published in June 1991 by Yakuji Nippo) can be added to these powder dye compositions.

The component (B) dispersants used in the present invention include metal stearates, silicic acids, metal silicates, talc, sucrose fatty acid esters, crystalline cellulose, low-substituted hydroxypropylcellulose, dextrin, Examples include starch and lactose, but from the viewpoint of fluidity and dispersibility improving effect, calcium stearate, magnesium stearate, silicic anhydride, hydrous amorphous silicon oxide,
Talc, aluminum silicate, calcium silicate, sodium silicate and magnesium silicate are preferably used. The compounding amount is from 0.2 to the powder dye composition.
It is 20% by weight, preferably 0.5 to 10% by weight. If the amount is less than 0.2% by weight, the effect of improving fluidity and dispersibility is not sufficiently exhibited, while if it exceeds 20% by weight, the fluidity and dispersibility of the powder dye composition are rather deteriorated. .

The hair dye composition using the powder dye composition of the present invention may be in the form of powder, liquid, emulsion, cream, gel, paste, or aerosol foam. it can. Conventionally known components can be appropriately added to these hair dyes, for example, higher alcohols, liquid paraffin, ester oils, fatty acids, silicones and derivatives thereof, vaseline, polyhydric alcohols, ultraviolet absorbers, preservatives, Surfactant, hair softener, thickener, p
H adjusters, alkali agents, fragrances, pearling agents, and the like.

In particular, the powdery dye composition of the present invention is very effective in preparing a powdery hair dye, and can maximize the effects of improving the working environment and operability.

In preparing a powder hair dye composition using the powder dye composition of the present invention, a percarbonate,
Perborate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide,
Oxidizing agents such as strontium peroxide, hydrogen peroxide adduct of sulfate, hydrogen peroxide adduct of phosphate, hydrogen peroxide adduct of pyrophosphate, urea peroxide, melamine peroxide, pyrophosphoric acid, lactic acid, Citric acid, succinic acid, tartaric acid, malic acid and their sodium, potassium and ammonium salts, sodium carbonate, magnesium carbonate, sodium metasilicate, 2-amino-2-methyl-1,3-propanediol and basic amino acids PH adjusters, various surfactants, thickeners, humectants such as wheat polypeptides, antistatic agents, hair softeners, antioxidants, preservatives, sequestering agents, excipients, pigments, fragrances, etc. Can be blended.

[0015]

Next, embodiments of the present invention will be described, but the present invention is not limited to these embodiments.

[0016]

Examples ◎ Examples 1-4 Examples 1% by weight p-phenylenediamine sulfate 99 Magnesium stearate 1

Example 2 Weight% p-phenylenediamine sulfate 95 Silicic anhydride 5

Example 3 Weight% p-phenylenediamine sulfate 95 Water-containing amorphous silicon oxide 5

Example 4 Weight% p-phenylenediamine sulfate 90 Talc 10

Comparative Example 1 p-phenylenediamine sulfate 100% by weight

The fluidity of the powder dye compositions of Examples 1 to 4 and Comparative Example 1 was observed. After filling each powder dye composition in a glass container and storing it at 50 ° C. for one month, fluidity, change in appearance and residual ratio of the dye were evaluated according to the following criteria.

<Evaluation Criteria> Fluidity ○: Good fluidity Δ: Slightly poor fluidity ×: Poor fluidity 2. Change in appearance ○: No coloring △: Almost no coloring ×: Coloring is recognized Residual rate of dye ○: Residual rate 90% or more △: Residual rate 90-70% ×: Residual rate 70% or less

Table 1 shows the results. The powder dye composition according to the present invention had better fluidity than Comparative Example 1, and was resistant to long-term storage, and hardly deteriorated.

[0024]

[Table 1]

Examples 5 to 7 Example 5% by weight p-phenylenediamine 98 Sucrose fatty acid ester 2

Example 6 Weight% p-aminophenol 97 Silicic anhydride 3

Example 7 wt% p-phenylenediamine sulfate 75 m-phenylenediamine sulfate 5 p-aminophenol sulfate 10 nitro-p-phenylenediamine sulfate 3 magnesium stearate 7 Example 7 is an example of a multi-component dye system. is there.

In Examples 5 to 7, as in Examples 1 to 4, both fluidity and dye stability were good.

Examples 8 to 11 Examples 8 to 11 in which Examples 1 to 4 are applied to powder hair dye compositions
Table 2 shows Comparative Example 2 in which 11 and Comparative Example 1 were applied to a powder hair dye composition.

In each of Examples 8 to 11 and Comparative Example 2,
The powder dye composition was blended such that the content of p-phenylenediamine sulfate in the powder hair dye composition was 20% by weight.

[0031]

[Table 2]

In preparing the powder hair dye compositions of Examples 8 to 11 and Comparative Example 2, the scattering properties and working efficiency of the powder dye compositions and the dispersibility of the powder hair dye compositions were observed. Dispersibility indicates the uniformity of the components in the powder hair dye composition. In addition, these powder hair dye compositions were packed in glass containers,
It was stored for 6 months in a constant temperature bath at ℃ and its stability was evaluated.
Furthermore, 10 g of water was added to 20 g of the obtained powder hair dye composition.
0 ml was added to prepare a hair dye coating solution, applied to a human hair bundle mixed with white hair, left at room temperature for 30 minutes and washed to obtain a hair dye bundle. At this time, the hair dyeing power of the hair bundle was compared and evaluated before and after storage. The evaluation was performed according to the following criteria. Table 3 shows the results
Shown in

[0033]

[Table 3]

<Evaluation Criteria> 4. Scatterability ○: hardly scattered △: slightly scattered ×: considerably scattered 5. Working efficiency (operability) ○: Good stirring and mixing efficiency Δ: Slightly poor stirring and mixing efficiency ×: Poor stirring efficiency 6. Dispersibility…: Components are uniformly dispersed and there is no bias.…: Components are not uniformly dispersed. 7. Stability…: No change in properties and little coloration △: No change in properties, but coloration is observed X: Change in properties and coloration is also observed Hair dyeing power The dyed hair bundle was visually observed. ○: Hair dyeing power does not change before and after storage △: Hair dyeing power slightly decreases by storage ×: Hair dyeing power decreases considerably by storage

As shown in Table 3, the powder hair dye composition containing the powder dye composition according to the present invention also had better workability than Comparative Example 2, and was stable and dyed. Good results were also obtained for the properties.

Examples 12 to 13 Example 12 (Example of Liquid Oxidative Hair Colorant First Agent) Weight% Powder Dye Composition (Example 5) 3 o-Aminophenol 1 Resorcinol 1 Polyoxyethylene alkylphenyl ether 25 Oleic acid 5 Isopropyl alcohol 10 28% ammonia water Amount to make pH 9.5 Fragrance 0.5 Purified water Appropriate amount

When the first liquid oxidative hair dye of Example 12 was prepared, the oxidative dye did not scatter and the workability was good.

Example 13 (Example of First Oxidative Hair Coloring Agent in Cream Type) Weight% Powder Dye Composition (Example 6) 2 N, N-bis (β-hydroxyethyl) -p-phenylenediamine sulfate 45 -Amino-2-methylphenol 0.2 Resorcinol 4-Nitro-o-phenylenediamine 0.3 Sodium lauryl sulfate 2 Stearyl alcohol 10 Polyoxyethylene stearyl ether 10 Disodium edetate 0.1 28% aqueous ammonia pH 9.5 Amount of purified water

In preparing the first part of the cream-type oxidative hair dye of Example 13, the oxidative dye was not scattered and the workability was good.

[0040]

According to the present invention, by blending a specific dispersant with an oxidized dye, it is possible to stabilize the dye for a long period of time, and to improve the flowability and flying property of the dye. It is possible to improve the operability and working environment when preparing the product. In addition, when incorporated into the powder hair dye composition, the fluidity and dispersibility of the powder hair dye composition itself are also improved, thereby improving the production efficiency and obtaining a composition having excellent storage stability. Can be.

Claims (4)

[Claims] A powder dye composition comprising the following components (A) and (B): at least 80% by weight of the (A) dye and (B) 0.2 to 20% by weight of a dispersant. 2. The powder dye composition according to claim 1, wherein the component (A) dye is one or more selected from the group consisting of a main intermediate, a direct dye and a coupler. 3. The component (B) dispersant is selected from metal stearates, silicic acid, metal silicates, talc, sucrose fatty acid esters, crystalline cellulose, low-substituted hydroxypropylcellulose, dextrin, starch and lactose. The powder dye composition according to claim 1, wherein the composition is at least one kind or two or more kinds. 4. A hair dye composition comprising the powder dye composition according to claim 1.