Patent ID: 7195650
Filing Date: 2007-03-27
Classification: A61K,A61Q

Abstract:
1. A process for dyeing, with a lightening effect, human keratin fibers that have previously been subjected to a permanent reshaping process and have a tone height of less than or equal to 6, comprising: a) applying to said keratin fibers, in an amount effective to provide a lightening effect on fibers that have previously been subjected to a permanent reshaping process and have a tone height of less than or equal to 6, at least one composition comprising, in a cosmetically acceptable medium, at least one fluorescent dye that is soluble in the medium, wherein the at least one fluorescent dye is chosen from compounds of the following formulae:  wherein R is chosen from methyl and ethyl radicals, R′ is a methyl radical, and X  wherein: R R R R X is chosen from: a is equal to 0 or 1; Y n is an integer equal to at least 2 and at most equal to the number of cationic charges present in the at least one fluorescent dye;