Composition for simultaneous colouring and decolouring of keratinic fibers comprising a meta substituted o-nitroaniline

摘要

Composition (I) for the discoloration and the simultaneous coloring of keratinous fibers comprises a dye (Ia) of meta substituted ortho nitro-anilines and their additive salts, a preoxygenated salt (Ib) and an alkaline agent (Ic). An independent claim is also included for a device with several compartments comprising at least two compositions, where the mixture of two compositions gives (I).