Mittel und Verfahren zur Entfärbung von Haaren sowie Mehrkomponenten-Kit zur Färbung und Entfärbung von Haaren

摘要

An agent for reductive decoloration of fibers (especially hair) dyed with oxidation and/or direct dyes comprises: (A) a reductone, a thiol and/or a sulfite; and (B) an alpha -oxocarboxylic acid or physiologically compatible. There also Independent claims for: (1) a coloring/decoloring kit comprising the agent in combination with an oxidative or non-oxidative dye; and (2) a reductive decoloration process in which a composition containing (A) is applied for 5-60 minutes at 20-50 degrees C and then the hair is rinsed with a (B)-containing composition.