Patent ID: 7294152
Filing Date: 2007-11-13
Classification: A61K,A61Q

Abstract:
1. A process for the dyeing of keratinic fibers, comprising applying to wet or dry fibers, for a period of time sufficient for the development of color, a dyeing composition comprising as a direct dye, in a medium appropriate for the dyeing of keratin fibers, at least one compound of formula (I): wherein: R R n and m, which may be the same or different, are integers ranging from 0 to 4, An is at least one anion that is cosmetically acceptable; and p is equal to 0 or 1, so as to respect the electroneutrality of the compound; and optionally rinsing the fibers, optionally washing and rinsing the fibers, and optionally drying or allowing the fibers to dry.