Composition, useful for dyeing human keratin fibers, comprises one or more oxidation dyes, and one or more quaternary ammonium hydroxide in a medium

摘要

Dye composition (I) comprises: one or more oxidation dyes; and one or more quaternary ammonium hydroxide (A) in a medium. Dye composition (I) comprises: one or more oxidation dyes; and one or more quaternary ammonium hydroxide of formula ((R1-N +>(R3)(R4)-R2)(OH ->)) (A) in a medium. R1-R4 : 1-20 (preferably 1-10) C alkyl optionally substituted by one or more halo, hydroxy or 1-4C alkoxy; or 1-2C alkyl-6C aryl. An independent claim is included for multicompartment device comprising at least one composition and an oxidizing composition containing one or more oxidizing agents.