Dyeing composition comprising 4,5-diamino-1-(beta-hydroxyethyl)-1H-pyrazole or 4,5-diamino-1-(beta-methoxyethyl)-1H-pyrazole as oxidation base and 2,6-dihydroxy-3,4-dimethylpyridine as coupling agent

摘要

New oxidation dye compositions (A) comprise a dyeing medium containing at least one oxidation base (I) selected from 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole (Ia), 4,5-diamino-1-(2-methoxyethyl)-1H-pyrazole (Ib) and their acid addition salts and at least one coupler (II) selected from 2,6-dihydroxy-3,4-dimethyl-pyridine (IIa) and its acid addition salts. Independent claims are included for: (1) a dyeing method for keratin fibers comprising applying (A) to the fibers then developing the color using an oxidizing agent (III); and (2) a multi-compartment kit comprising a compartment containing (A) and another compartment containing (III).