Richard Simon Blackburn,Patrick Columba McGowan,Christopher Martin Pask,Christopher Mark Rayner
申请号：
US13381126
公开号：
US08535391B2
申请日:
2010.06.30
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present invention is concerned with a dye system for application to a substrate, the dye system comprising: (a) at least one dye precursor (b) an oxidizing agent and (c) a catalyst, wherein the catalyst is a homogeneous catalyst or a heterogeneous catalyst. Preferably, the catalyst comprises at least one metal-containing compound. The invention also envisages a method for the coloration of a substrate, the method comprising treating the substrate with the dye system of the invention. In preferred embodiments of the invention, the substrate comprises human hair, natural or synthetic polymers, or textile fibers. In further preferred embodiments, the at least one dye precursor is an organic precursor, the at least one metal derivative for use as a catalyst comprises at least one inorganic metal compound or at least one metal complex comprising at least one organic ligand, and the oxidizing agent is hydrogen peroxide.
