申请人:Unilever Home & Personal Care USA
公开号:US06242409B1
公开(公告)日:2001-06-05
The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen or air. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is substantially devoid of peroxygen bleach or a peroxy-based or -generating bleach system.
本发明涉及催化漂白基质,特别是洗涤织物,使用大气氧气或空气。提供了一种漂白基质的方法,包括在水性介质中向基质施加一种与过渡金属形成配合物的有机物,该配合物通过大气氧气催化基质的漂白。还提供了一种漂白组合物,包括在水性介质中的大气氧气和一种与过渡金属形成配合物的有机物,该配合物通过大气氧气催化基质的漂白,其中水性介质基本上不含过氧化物漂白剂或过氧化物基或生成漂白剂系统。