Composition for dyeing keratin fibers, comprising at least one diamino-n,n-dihydropyrazolone derivative, at least one coupler, and at least one heterocyclic direct dye

Composition for dyeing keratin fibers, comprising at least one diamino-n,n-dihydropyrazolone derivative, at least one coupler, and at least one heterocyclic direct dye

  • CN 1,915,214 B
  • Filed: 05/31/2006
  • Issued: 11/16/2011
  • Est. Priority Date: 05/31/2005
  • Status: Active Grant
First Claim
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1. composition for dyeing keratin fibers, it comprises in appropriate medium:

  • At least aly be selected from 2,3-diaminourea-6,7-dihydro-1H, the oxidation base of 5H-pyrazolo [1,2-a] pyrazoles-1-ketone or its addition salts;

    At least a colour coupler andAt least a heterocycle direct dyes, it is selected from has the cationic heterocyclic direct dyes that belongs to heterocyclic at least one cationic charge.

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