METHOD FOR DYEING HUMAN KERATIN FIBER SUBJECTED TO PERMANENT REFORMING PROCESS IMPARTED WITH LIGHTENING EFFECT BY USING COMPOSITION CONTAINING FLUORESCENT DYE

摘要

PROBLEM TO BE SOLVED: To provide a method for dyeing artificially dyed or colored hair while being imparted with a lightening effect thereto.;SOLUTION: This method for dyeing a keratin fiber, such as the hair previously subjected to a permanent reforming process, while being imparted with the lightening effect thereto, comprises using a composition which contains at least one fluorescent dye in a cosmetically acceptable medium, wherein the fluorescent dye is soluble in the medium and comprises, for example, a compound expressed by formula (F1) (R is methyl or ethyl; R' is methyl; and X^- is an anion, such as iodide, sulfate or methosulfate).;COPYRIGHT: (C)2005,JPO&NCIPI