Singe-phase decolouriser for fibres, hair or skin dyed with non-oxidative dyes

摘要

A single-phase agent for decolouring fibres or skin dyed with non-oxidative dyes has pH 7-12 and contains (A) 5-90 wt.% EtOH, n- or iso-propanol, a butanol, pentanol, hexanol, glycol, cyclohexanol or benzyl alcohol and (B) 0.1-30 wt.% sulphur containing reducing agent. The decolouring agent preferably contains a mixture of water and 20-60 wt.% of alcohol (A).