DYE COMPOSITION COMPRISING A PARTICULAR AMPHOTERIC SURFACTANT AND AN OXYETHYLENATED AMIDE SURFACTANT OR AN OXYETHYLATENATED FATTY ALCOHOL SURFACTANT COMPRISING LESS THAN 10 OE UNITS AND MIXTURE THEREOF DYE COMPOSITION COMPRISING A PARTICULAR AMPHOTERIC SURFACTANT AND AN OXYETHYLENATED AMIDE SURFACTANT

摘要

The present invention relates to a composition for dyeing keratin fibres, 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 hydrolysed 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 nonionic surfactants chosen fromoxyethylenated amide, oxyethylenated (OE) fatty alcohol comprising less than 10 OE units and mixture thereof; d) one or more oxidation dye precursors and e) one or more chemical oxidizing agents. 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.