Patent ID: 7976584

Claim:
A dyeing composition comprising, in a medium suitable for dyeing keratinous fibers, at least one dye chosen from at least one direct dye and at least one dye precursor, said medium comprising water and at least one propylene glycol derivative of formula (I) below: R 1 (OC 3 H 6 ) n OR 2 (I) wherein R 1 is chosen from hydrogen, linear or branched C 1 -C 6 alkyl radicals, and linear or branched C 2 -C 6 acyl radicals; R 2 is chosen from linear or branched C 2 -C 6 alkyl radicals; n is chosen from integers ranging from 1 to 6; and the unit OC 3 H 6 being linear or branched.