DE19539265C2 - Hair dye - Google Patents

Description

The present invention relates to a hair dye based on a reactive with peroxide Developer coupler system that has an expressive, brilliant and lasting orange-red Provides a fundamental tone that can either be used as such or, in combination with others Developer and / or coupler substances can be used to achieve further color shades can.

The developer substances mostly used in hair dyes are 1.4- Diaminobenzene (p-phenylenediamine) and 1-methyl-2,5-diaminobenzene (p-toluenediamine). The Use of these substances is not entirely problem-free in that they are extremely sensitive persons can lead to skin sensitization in special cases (at so-called "para-allergy sufferers).

Attempts have been made to solve this problem by using alternative developer substances to solve. This is possible to a limited extent through the use of tetraaminopyrimidine or 2- (2,5-diaminophenyl) ethanol (cf. EP-A 7537 and EP-B 400 330); however then considerable cuts in the color intensity and the possible variations of the different Shades are accepted.

A largely optimal solution to the problem, namely the absence of Skin sensitization on the one hand and a wide range of possible achievements Color shades, on the other hand, is achieved by the use of EP-B 467 026 Hydroxytriaminopyrimidinen achieved as developer substances in hair dye.

This can be done by combinations with various special coupler substances, such as for example in DE-A 41 15 148, EP-A 542 129, DE-A 44 00 757, EP-A 657 158 or DE-A 42 19 981 are described, still improve.

Even so, color-technical wishes still remain open.

The invention is therefore based on the task of creating a hair dye that Contains 4-aminophenol and / or 5-aminosalicylic acid as developer and for the preparation an orange-red hue is suitable.

This object is achieved in that such a hair dye is one which reacts with peroxide Developer-coupler system containing a combination of 4-aminophenol and / or 5-aminosalicylic acid, 5-amino-2-methylphenol and 4-amino-3-methylphenol.

The production and use of 4-aminophenol as a developer in hair dyes is known per se as well as that of 4-aminosalicylic acid (cf. EP-A 345 728), but not in the compositions according to the invention to achieve the described surprising color effects.  

When applying this composition on a common basis, according to Oxidation with peroxide get a very expressive, intense orange-red basic color that can be varied to other color shades by adding appropriate further coupler substances can.

Such preferred further coupler substances are in particular resorcinol, 2-methylresorcinol, 4-chlororesorcinol, 3-aminophenol, 2-aminophenol, 2-amino-4-β-hydroxyethylaminoanisole or its water-soluble salts and α-naphthol.

However, this should by no means preclude the addition of further coupler substances.

The use of further developer substances known per se is also possible. Next those already mentioned at the outset are those known from EP-B 467 026 Hydroxytriaminopyrimidines such as 2,4,5-triamino-6-hydroxypyrimidine and 4,5,6-triamino-2- To name hydroxypyrimidine, especially their sulfate salts.

The concentration of the developer substances is between about 0.05 and 5, preferably 0.1 and 4, in particular 0.25 to 0.5 and 2.5 to 3% by weight of the total composition of the Hair dye (without oxidizing agent), the details being based on the proportion of free Get base.

The coupler substances as reactants of the developer substance (s) are in the hair dyes according to the invention in approximately the same proportion as the developer substances, d. H. thus in amounts of 0.05 to 5.0, preferably 0.1 to 4, in particular 0.5 to 3% by weight of the Overall composition (without oxidizing agent), the details being based on the proportion obtain free base.

Here too, as already mentioned, it is possible and sometimes useful to have other known ones Coupler substances to be used if this is desired to achieve certain shades of color and is required.

If necessary, the compositions according to the invention can also be called nuances for fine adjustment of the desired color, especially direct dyes, contain. Such nuances are, for example, nitro dyes such as 2-amino-4,6-dinitrophenol, 2-amino-4-nitrophenol, 2-amino-6-chloro-4-nitrophenol, etc., preferably in amounts of about 0.05 to 2.5, in particular 0.1 to 1 wt .-% of the color composition (without oxidizing agent).  

The hair dye according to the invention can be the basic and Contain additives, conditioning agents, etc. that are known to the person skilled in the art from the prior art known and for example in the monograph by K. Schrader, "Fundamentals and Recipes of Cosmetics ", 2nd edition (Hüthig Buch Verlag, Heidelberg, 1989), pp. 782 to 815. They can be present as solutions, creams, gels or in the form of aerosol preparations. Suitable carrier material compositions are sufficient from the prior art known.

The oxidation dye precursor according to the invention is applied with a Oxidizing agent mixed, the preferred oxidizing agent is hydrogen peroxide, for example in 2- to 6-percent concentration.

However, other peroxides such as urea and melamine peroxide can also be used will.

The pH of the ready-to-use hair dye, d. H. after mixing with peroxide, can both in weakly acidic, d. H. a pH range from 5.5 to 6.9, in neutral as well as in alkaline range, d. H. between pH 7.1 and 9.5.

Various exemplary embodiments are given below to explain the invention.  

example 1

0.13 (wt%) 4-aminophenol
0.14 (wt%) 4-amino-3-methylphenol
0.28 (wt%) 5-amino-2-methylphenol
Coloring: brilliant, intense red-orange.

Example 1a

Omission of 4-amino-3-methylphenol resulted in one pale red, weak coloring.

Example 2

0.13 (wt%) 4-aminophenol
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.12 (wt%) 3-aminophenol
Coloring: Intense brownish red orange.

Example 3

0.13 (wt%) 4-aminophenol
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.16 (wt%) α-naphthol
Coloring: intense old pink.

Example 4

0.13 (wt%) 4-aminophenol
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.33 (wt%) 2-amino-4- (β-hydroxyethylamino) anisole sulfate
Coloring: intense mahogany.

Example 5

0.13 (wt%) 4-aminophenol
0.15 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.12 (wt%) 2-methylresorcinol
Color: shiny, intense orange.

Example 6

0.17 (wt%) 5-aminosalicylic acid
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
Coloring: shiny, intense red-orange.

Example 6a

Omission of 4-amino-3-methylphenol resulted in one faint, pale red color.

Example 7

0.17 (wt%) 5-aminosalicylic acid
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.12 (wt%) 3-aminophenol
Coloring: Intense brownish red orange.

Example 8

0.17 (wt%) 5-aminosalicylic acid
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.16 (wt%) α-naphthol
Coloring: Intense, blue-nuanced red-orange.

Example 9

0.17 (wt%) 5-aminosalicylic acid
0.14 (wt%) 4-amino-3-methylphenol
0.14 (wt%) 5-amino-2-methylphenol
0.33 (wt%) 2-amino-4- (β-hydroxyethylamino) anisole sulfate.
Coloring: Intense, red-brown violet.

Claims (3)

1. hair dye based on a peroxide-reactive developer-coupler system, characterized in that it is a combination of

• a) 4-aminophenol and / or 5-aminosalicylic acid;
• b) 4-amino-3-methylphenol; and
• c) 5-amino-2-methylphenol

contains. 2. Hair dye according to claim 1, characterized in that there is at least one additional Coupler substance selected from the group resorcinol, 2-methylresorcinol, 4-chlororesorcinol, 3- Aminophenol, α-naphthol and / or 2-amino-4- (β-hydroxyethylamino) anisole or its contains water-soluble salts.