Importance

Loading Importance Indicators...

Abstract

The present invention relates to a composition for dyeing keratin fibers, comprising: a) one or more liquid fatty substances; b) one or more amphoteric surfactants of formula (I) below: R_a′—C(O)—NH—CH₂—(CH₂)_n—N(B)(B′) in which: —B represents the group —CH₂—CH₂—O—X′; —B′ represents the group —(CH₂)_zY′, with z=1 or 2; —X′ represents the group —CH₂—C(O)OH, —CH₂—C(O)OZ′, —CH₂—CH₂—C(O)OH or —CH₂—CH₂—C(O)OZ′, or a hydrogen atom; —Y′ represents the group —C(O)OH, —C(O)OZ″, —CH₂—CH(OH)—SO₃H or the group —CH₂—CH(OH)—SO₃—Z″; —Z′ and Z″ represent, independently of each other, a cationic counterion derived from an alkali metal or alkaline-earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; —R_a′, represents a C₁₀-C₃₀ alkyl or alkenyl group derived from an acid R_a′—C(O)OH, which is preferably present in copra oil or in hydrolyzed linseed oil, an alkyl group, especially a C₁₇ group and its iso form, or an unsaturated C₁₇ group and —n represents an integer ranging from 1 to 10 and preferably from 1 to 5, —or quaternized forms thereof; c) one or more sulfate or sulfonate surfactants; d) one or more oxidation dye precursors. The present invention also relates to a process using this composition and to a multicompartment device that is suitable for performing the said process.

Loading the Abstract Image...

First Claim