Patent ID: 8551188

Claim:
A dye composition comprising: one or more hydrophobic direct dyes with a logP of greater than or equal to 2 chosen from indigoid dyes and compounds of formulae (III) and (IV) below: in which: R 1 , R′ 1 , R 2 , R′ 2 , R 3 , R′ 3 , R 4 , R′ 4 , R 5 and R′ 5 , which may be identical or different, represent a hydrogen atom, a halogen atom, a hydroxyl radical, a C 1 to C 30 alkyl, C 1 to C 30 alkyloxy, C 1 to C 30 acyl or C 1 to C 30 acyloxy radical, the alkyl and alkyloxy radicals possibly being substituted with one or more halogen atoms and/or with one or more hydroxyl groups, one or more organic alkaline agents, and/or one or more mineral bases chosen from carbonates, hydrogen carbonates, sodium hydroxide and potassium hydroxide, and mixtures thereof, one or more compounds (I) comprising in their structure a sequence: with n denoting an integer ranging from 0 to 4, and denoting a group: and one or more organic compounds (II) with a Hansen solubility parameter δH of less than or equal to 16 MPa 1/2 and with a molecular weight of less than 250 g/mol.