Dye composition using a 2-hydroxynaphthalene, (acylamino)phenol or quinoline coupler in a fatty-substance-rich medium, dyeing process and device therefor
The present invention relates to a cosmetic composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising: a) one or more fatty substances b) one or more surfactants c) one or more oxidation bases d) one or more couplers based on 2-hydroxynaphthalene derivatives or particular phenol derivatives, acylaminophenol derivatives or quinoline derivatives f) one or more basifying agents e) optionally one or more chemical oxidizing agents and the fatty substance content representing in total at least 25% by weight relative to the total weight of the formulation. The present invention also relates to a process using this composition, and to a multi-compartment device that is suitable for performing the said process.