CIPO - Patent - 2288086 Canadian Intellectual Property Office Symbol of the Government of Canada CA 2386077 AZOIC QUINOLINIUM COMPOSITIONS WITH DISULFIDE / THIOL PATTERN, COMPOSITIONS COMPRISING THEM, KERATIN FIBER COLORING PROCESS AND DEVICE.

摘要

The present invention relates to thiol / disulfide azo quinolinium compounds, for dyeing keratinous fibers. The invention relates to a dyeing composition comprising a thiol or disulfide dye with a particular azo quinolinium azo thiol / disulfide chromophore, a dyeing process. keratinous fibers such as the hair, using said composition. It likewise relates to novel dyes with particular azo quinolinium azo thiols / disulphides and their uses in the dyeing of keratinous fibers. The dyeing method according to the invention makes it possible to color the keratin fibers without degrading them, which is particularly persistent vis-à-vis -vis shampoos and common aggression. In addition, the new dyes according to the invention have a range of colors to violet and blue. This process also makes it possible to color keratin fibers which are colorfully and chromatically discolored.