Tinctorial composition, useful for the dyeing of keratinous fibers in human, comprises a mixed dye comprising two different chromophores

摘要

Tinctorial composition (A) (for the dyeing of keratinous fibers in human), comprises a mixed dye (I) comprising two different chromophores (bonded by a bond stopping the delocalization of electrons of each chromophores) except for a mixed dye with two chromophore (a benzenic nitrated compound and a benzenic or anthraquinonic nitrated compound, bonded by means of a bond formed by an alkyl radical) in a medium. Tinctorial composition (A) (for the dyeing of keratinous fibers in human), comprises a mixed dye (I) comprising two different chromophores (at least one of the chromophores is (hetero) aromatic nitrated compounds family, optionally associated with at least a chromophore of methines and/or carbonyls by a bond stopping the delocalization of electrons of each chromophores) except for a mixed dye with two chromophore (a benzenic nitrated compound and a benzenic or anthraquinonic nitrated compound, bonded by means of a bond formed by an alkyl radical (optionally interrupted by a nitrogen atom with hydrogen, a 1-4C alkyl radical, a 1-4C hydroxyalkyl radical or nitro phenyl compounds of formulae (Ia), (Ib) or (Ic))) in a medium. Independent claims are also included for: (1) a process of dyeing keratinous fibers in human, comprising applying (A) on optionally dried fibers, optionally in the presence of an oxidizing agent, allowing (A) to be retained to obtain the desired coloration, rinsing the fibers optionally, washing the fibers and rinsing, and drying or allowing the fibers to dry; (2) a device with several compartments, where one compartment comprising (A) and an optional additional direct dye, optionally an oxidation base, optionally a coupler, and another compartment comprising an oxidizing agent; and (3) (I) or its salt. [Image] [Image] [Image].