COLORANTS DIRECTS AZOMETHINIQUES PARTICULIERS, COMPOSITION TINCTORIALE COMPRENANT AU MOINS UN TEL COLORANT, PROCEDE DE MISE EN OEUVRE ET UTILISATION

摘要

The present invention relates to direct dyes of azomethine type of formula (I) below; and also to the use thereof for dyeing keratin fibres, in particular human keratin fibres such as the hair. The invention also relates to a composition for dyeing keratin fibres, comprising such direct dyes in a suitable dyeing medium. Similarly, a subject of the invention is a process for dyeing keratin fibres using the said dye composition, and also a device comprising the same. Finally, the present invention also relates to precursors of these direct dyes.