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    • 75. 发明申请
    • IMPROVEMENTS RELATING TO BLEACHING COMPOSITIONS COMPRISING HYDROGEN PEROXIDE
    • 关于包含过氧化氢的漂白组合物的改进
    • WO9823717A2
    • 1998-06-04
    • PCT/EP9706164
    • 1997-10-31
    • UNILEVER PLCUNILEVER NVTHOMPSON KATHERINE MARYTHORNTHWAITE DAVID WILLIAM
    • THOMPSON KATHERINE MARYTHORNTHWAITE DAVID WILLIAM
    • C11D3/395C11D3/26C11D3/39C11D17/08C11D3/00
    • C11D3/3947C11D3/3927
    • The invention provides a bleaching composition of pH 10-14 which comprises an oxygen transfer agent and hydrogen peroxide. It is believed that the reaction of hydrogen peroxide with the imine quat. oxygen transfer agents proceeds through a different route than that of the organic and inorganic peroxides. As a consequence, the formation of acyl hydroxamate is significantly reduced. Furthermore it is believed that when hydrogen peroxide is used as the bleaching agent in the pH range indicated, a surprising improvement in the efficacy of the bleaching system occurs and it is possible to formulate peroxide based systems which have efficacy approaching or exceeding that of hypochlorite without the disadvantages associated with hypochlorite. A further aspect of the present invention provides a method for bleaching a stained substrate which comprises the step of treating the substrate with a bleaching composition of pH 10-14, which bleaching composition comprises an oxygen transfer agent and hydrogen peroxide.
    • 本发明提供一种pH10-14的漂白组合物,其包含氧转移剂和过氧化氢。 相信过氧化氢与亚胺季铵的反应。 氧传递剂通过与有机和无机过氧化物不同的途径进行。 结果,酰基氧肟酸盐的形成显着降低。 此外,据信当在所指示的pH范围内使用过氧化氢作为漂白剂时,漂白系统的功效发生惊人的改善,并且可以配制具有接近或超过次氯酸盐的功能的过氧化物体系,而没有 与次氯酸盐相关的缺点。 本发明的另一方面提供一种漂白染色底物的方法,其包括用漂洗组合物pH 10-14处理底物的步骤,该漂白组合物包含氧转移剂和过氧化氢。