Patent ID: 7153330

Claim:
Composition for the oxidation dyeing of human keratin fibres, and in particular of human keratin fibres such as the hair, comprising, in a medium that is suitable for dyeing: 4,5-diamino 1-hydroxyethyl pyrazole, and/or the addition salt thereof with an acid and at least one mineral compound chosen from silicas, aluminium oxides or hydroxides, aluminium, magnesium and iron hydrosilicates alone or as a mixture, and zinc salts; the said composition not containing a combination of an oxidation base of the 4,5-diaminopyrazole type, a zinc salt and a derivative of 1,4-diazacycloheptane or a salt thereof, having the following formula: in which R 1 , R 2 , R 3 and R 4 , which may be identical or different, denote a hydrogen, a C 1 –C 4 alkyl or hydroxyalkyl, or a C 2 –C 4 dihydroxyalkyl; Z 1 and Z 2 , which may be identical or different, denote hydrogen, chlorine, fluorine, a C 1 –C 4 alkyl, a C 1 –C 4 hydroxyalkyl, a C 1 –C 4 aminoalkyl, a C 1 –C 4 alkoxy, a C 2 –C 4 dihydroxyalkyl or an allyl group; R 5 and R 6 , which may be identical or different, denote a hydrogen or a C 1 –C 4 alkyl.