HAIR DYEING PROCESS USING AT LEAST ONE DIRECT AND/OR NATURAL DYE, A TITANIUM SALT, A CELLULOSE-BASED POLYSACCHARIDE AND OPTIONALLY A PARTICULAR ORGANIC SOLVENT

摘要

The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in which said fibres are treated using one or more cosmetic compositions comprising a) one or more dyes chosen from synthetic direct dyes and dyes of natural origin, b) one or more titanium salts and b1) optionally one or more particular carboxylic acids, c) one or more cellulose-based polysaccharides, d) optionally one or more organic compounds that are liquid at 25° C., with a Hansen solubility parameter value δH16 (MPa)^1/2 at 25° C., e) optionally one or more chemical oxidizing agents such as hydrogen peroxide or one or more hydrogen peroxide-generating systems.