NOVEL DIRECT DYES DERIVED FROM ASCORBIC ACID AND HETEROCYCLIC LINKER, DYE COMPOSITION COMPRISING SAME, AND PROCESS FOR COLORING HUMAN KERATINIC MATERIALS FROM THESE DYES
The present invention relates to the dyeing of keratinous substances, with the aid of dyes to pattern ascorbic acid derivative comprising a linker heterocyclic of formula (i), particularly to the pattern 3,4 - dihydroxyfuran - 2 (5h) - one and 2,3,4 (5h) - furantrione. The present invention relates to a dyeing composition comprising a dye to ascorbic acid derivative, a process for dyeing, in particular with a highlighter of keratinous substances such as the hair, employing said composition. It also relates to novel dyes to ascorbic acid derivative and their uses in the lightening of the keratinous substances. This composition makes it possible to obtain colorations that are particularly resistant and visible on dark keratin fibres, even in the absence of chemical oxidizing agent.
