Dye composition using at least one meta-phenylenediamine type coupler substituted at position 4 in a medium comprising a fatty substance, methods and device
Composition for dyeing keratin fibers, in particular human keratin fibers such as hair, characterized in that it comprises: i) one or more fatty substances, ii) one or more surfactants, iii) one or more oxidation bases chosen from para-phenylenediamines, bis (phenyl) alkylenediamines, paraaminophenols, ortho-aminophenols and the addition salts thereof and / or solvates thereof, iv) one or more alkalinizing agents, v) one or more meta-phenylenediamine-based couplers of the formula ( I), as well as the addition salts thereof, optical isomers, geometric isomers and tautomers thereof and / or solvates thereof ** Formula ** so that in formula (I): * R1 and R3 represent , independently of each other: * a hydrogen atom, * a methyl radical, * a linear or branched C1-C6 alkyl radical, substituted by one or more of the following: - radicals -CONH2, - radicals -NHSO2CH3, - radicals di ( C1-C6) alkylamino, - radicals hydroxyl, - amino radicals, - -COOH radicals, * R2 represents: * a C1-C6 alkyl radical which may be substituted by one or more hydroxyl radicals, * a linear or branched C1-C6 alkoxy radical, which may be substituted by one or more of the following: - radicals -CONH2, - radicals -NHSO2CH3, - di (C1-C6) alkylamino radicals, - amino radicals, - -COOH radicals, - C1-C6 alkoxy radicals, (vii) one or more oxidizing agents chemical, the total fatty substance content representing at least 10% by weight with respect to the total weight of said dye composition.Composición para teñir fibras queratínicas, en particular fibras queratínicas humanas tales como el cabello, caracterizada porque comprende: i) una o más sustancias grasas, ii) uno o más tensioactivos, iii) una o más bases de oxidación elegidas entre para-fenilendiaminas, bis(fenil)alquilendiaminas, paraaminofenoles, orto-aminofenoles y las sales de adición de los mismos y/o solvatos de los mismos, iv) uno o más agentes alcalinizantes, v) uno o más acopladores a base de meta-fenilendiamina de la fórmula (I), así como l
