DE10020730C1 - Oxidation hair dye composition containing 6-amino-2,4-dichloro-3-methylphenol and developer(s), giving strong, lasting dyeings without damaging the hair - Google Patents

Abstract

A novel hair dye composition, based on an oxidation dye precursor reacting with peroxide, contains 6-amino-2,4-dichloro-3-methylphenol (I) (and/or its water-soluble salt) and at least one developer (II).

Description

The present invention relates to a hair dye based on a peroxide Reactive oxidation dye system that provides lasting intense color tones, which are either used as such, or, in combination with others Developer and / or coupler substances, to achieve further color shades be can be used and the hair even with short-term repeated use does not harm.

The most commonly used in hair dyes developer substances are 1,4-diaminobenzene (p-phenylenediamine) and 1-methyl-2,5-diaminobenzene (P-toluylenediamine). The use of these substances is the technical color Although the users are largely fair in their wishes, there is still color nuances that can not be fully achieved.

It has also been proposed to fill this gap by using alternative To close developers. This is possible to a limited extent by the use of tetraaminopyrimidine or 2- (2,5-diaminophenyl) ethanol (see EP 7537 A1 and EP 400 330 A1); however, then have to cut back on the color intensity other nuances are accepted.

A largely optimal solution to this problem is represented by the in EP 615 743 A1 described use of 2- (2'-hydroxyethylamino) -5-aminotoluene or its water-soluble salts and the known from EP 467 026 A1 Triamino hydroxypyrimidines, in particular 2,5,6-triamino-4-hydroxypyrimidine,  2,4,5-triamino-6-hydroxypyrimidine, 4,5,6-triamino-2-hydroxypyrimidine or salts thereof, especially the sulfates, achieved as developers in hair dyes. Even so, however, color technical wishes remain open.

Leave by selecting suitable coupler substances in suitable combination to produce many shades.

The invention is therefore based on the task, a hair dye to create, which is suitable for the production of a large number of shades and the hair does not damage even after short-term repeated use.

This object is achieved in that such a hair dye with a peroxide Reactive oxidation dye system contains, consisting of a combination of 6-amino-2,4-dichloro-3-methylphenol or its water-soluble salts and consists of at least one further coupler and / or developer substance.

This is preferably selected from the group 1- (β-hydroxyethyl) -2,5-diamino benzene, 2- (2'-hydroxyethylamino) -5-aminotoluene, 1-amino-4-bis- (2'-hydroxyethyl) - aminobenzene, a tetraaminopyrimidine such as 2,4,5,6-tetraaminopyrimidine, a Triaminohydroxypyrimidine such as 2,5,6-triamino-4-hydroxypyrimidine, 2-amino-5-N, N- diethylaminotoluene, 1,4-diaminobenzene, 2,5-diaminotoluene, 4-aminophenol, 4-amino 3-methylphenol or their water-soluble salts.

Further suitable coupler substances are, for example, 1-methoxy-2-amino-4- (β- hydroxyethylamino) benzene, 2-amino-3-hydroxypyridine, 2,5-diaminopyridine, 2,6-di aminopyridine, 3-amino-2-methylamino-6-methoxypyridine, 2- (dimethylamino) - 5-aminopyridine, resorcinol, 2-methylresorcinol, 4-chlororesorcinol, 2-amino-4-chlorophenol, 1,3-diaminobenzene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2-amino phenol, 3-aminophenol, 1-methyl-2-hydroxy-4-aminobenzene, 5-amino-2-methoxyphenol,  2-methyl-5-hydroxyethylaminophenol, 5-amino-3-methylphenol, 5-amino 2-methylphenol, 2-amino-4-β-hydroxyethylaminoanisole and / or 1-naphthol or their water-soluble salts.

Thus, however, the addition of further developer and coupler substances none be excluded.

Using these compositions on a conventional basis after oxidation with peroxide become very expressive, intense, lasting Hair dyeings obtained mainly in the green and gray areas, by adding corresponding further developer and coupler substances still to others Shades of color can be varied.

The 6-amino-2,4-dichloro-3-methylphenol is preferably in the form of a water-soluble salt, especially as hydrochloride, before.

Also, the additional use of further, known per se Entwicklungslersubstan zen is possible. In addition to those already mentioned above are in particular still 5-aminosalicylic acid and / or 1,2,4-triaminobenzene.

The total concentration of the developer substances is usually between about 0.05 and 5%, preferably 0.1 and 4%, in particular 0.25 to 0.5% and 2.5 to 3% wt .-% of the total composition of the hair dye (without Oxidizing agent), wherein the information is based on the proportion of free base be pull.  

The preferred weight ratio of 6-amino-2,4-dichloro-3-methylphenol to the Developer substances is between about 1: 8 to 8: 1, preferably about 1: 5 to 5: 1, especially 1: 2 to 2: 1.

The coupler substance (s) as reaction partner of the developer substance (s) are in the hair dye according to the invention in about the same molar fraction as the Developer substances before, d. that is, in amounts of 0.05 to 5.0%, preferably 0.1 to 4%, in particular 0.5 to 3 wt .-% of the total composition (without Oxidizing agent), wherein the data in each case on the proportion of free base Respectively.

The compositions of the invention may also be desired Nuanceure for fine adjustment of the desired color, ins special direct dyes, included.

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 from about 0.05 to 2.5%, especially 0.1 to 1%, by weight of the color composition (without oxidizing agent).

The hair colorants of the invention may be those customary in such compositions Basic and additives, conditioners, etc. included, the expert from known in the art and for example in the monograph of K. Schrader, "Basics and Formulations of Cosmetics", 2nd ed. (Hüthig Buch Verlag, Heidelberg, 1989), pp. 782-815. You can as Solutions, creams, gels or even in the form of aerosol preparations; suitable carrier material compositions are known in the art well known.  

For application, the oxidation dye precursor according to the invention with an oxidizing agent mixed. Preferred oxidizing agent is Hydrogen peroxide, for example in 2- to 6-percent concentration.

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

The pH of the ready-to-apply hair dye, d. H. after mixing with Peroxide, can be found both in weakly acidic, d. H. a range of 5.5 to 6.9, in the neutral as well as in the alkaline range, d. H. between pH 7.1 and 10.

In the following, various embodiments for explaining the Invention given.  

basis

stearyl 8.0 (% by weight) coconut fatty acid monoethanolamide 4.5 1,2-Propanediol mono / distearate 1.3 Kokosfettalkoholpolyglykolether 4.0 sodium lauryl sulfate 1.0 oleic acid 2.0 1,2-propanediol 1.5 Na-EDTA 0.5 sodium 1.0 protein hydrolyzate 0.5 ascorbic acid 0.2 Perfume 0.4 Ammonia, 25% 1.0 ammonium chloride 0.5 panthenol 0.8 water 100.00

The oxidation dye combinations according to the invention were, under corresponding reduction in water content incorporated into this basis.

The dyeings took place in each case on wool lobules and strands bleached human hair, by applying a 1: 1 mixture of dye Precursor and 6% hydrogen peroxide solution (pH of the mixture: 9.8) and for 20 minutes at room temperature, followed by washing and Dry.  

The following colors were obtained:

example 1

0.51 (wt.%) Of 6-amino-2,4-dichloro-3-methylphenol hydrochloride (PC 87)
0.50 2,5-diaminotoluene sulfate

coloring

Intense gray brown.

Example 2

0.51 (wt%) PC-87
0.49 2-Amino-5-diethylaminotoluene hydrochloride

coloring

Intense light turquoise green.

Example 3

0.51 (wt%) PC-87
0.51 3-amino-2-methylamino-6-methoxypyridine dihydrochloride

coloring

Intense greenish gray.  

Example 4

0.51 (wt%) PC-87
0.24 1,4-diaminobenzene

coloring

Intense gray violet.

Example 5

0.51 (wt%) PC-87
0.54 4-hydroxy-2,5,6-triaminopyrimidine sulfate

coloring

Intense golden yellow.

Example 6

0.51 (wt%) PC-87
0.66 N, N-bis (hydroxyethyl) -1,4-diaminobenzene sulfate

coloring

Intense turquoise blue.

Example 7

0.51 (wt%) PC-87
0.54 2,4,5,6-tetraaminopyrimidine sulphate

coloring

Intense lemon yellow.  

Example 8

0.51 (wt%) PC-87
0.56 1- (β-hydroxyethyl) -2,5-diaminosulphate

coloring

Intense green gray brown.

Example 9

0.34 (wt%) PC-87
0.16 4-aminophenol
0.33 (wt%) 2,5-diaminotoluene sulfate

coloring

Intense natural gray brown.

Claims (3)

1. Hair dyes based on a peroxide-reactive oxidation dye Precursor containing 6-amino-2,4-dichloro-3-methylphenol and / or its water-soluble salts and at least one developing agent. 2. Hair colorant according to claim 1, containing as developer substance (s) at least one component selected from the group 1- (β-hydroxyethyl) - 2,5-diaminobenzene, 2- (2'-hydroxyethylamino) -5-aminotoluene, 1-amino-4-bis- (2'- hydroxyethyl) aminobenzene, a tetraaminopyrimidine, a triaminohydroxy pyrimidine, 4-aminophenol, 4-amino-3-methylphenol, 2-amino-5-N, N-diethyl aminotoluene, 1,4-diaminobenzene and / or 2,5-diaminotoluene or their water soluble salts. 3. hair dye according to claim 1 or 2, containing as coupler substance at least one of the substances selected from the group 1-methoxy 2-amino-4- (β-hydroxyethylamino) benzene, 2,5-diaminopyridine, 2,6-diaminopyridine, 2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 2- (dimethyl amino) -5-aminopyridine, 5-amino-2-methylphenol, 5-amino-3-methylphenol, 2-methyl-5-hydroxyethylaminophenol, 2-amino-4-chlorophenol, 1,3-diaminobenzene, 1-methyl-2-hydroxy-4-aminobenzene, 1,6-dihydroxynaphthalene, 1,7-dihydroxy naphthalene, resorcinol, 2-methylresorcinol, 4-chlororesorcinol, 1-naphthol, 2-amino phenol, 5-amino-2-methoxyphenol, 2-amino-4-β-hydroxyethylaminoanisole and / or 3-aminophenol or its water-soluble salts.