A PROCESS FOR TREATING STAINS ON FABRIC

摘要

A method of bleaching a fabric comprising the following steps : (i) a pretreatment step in which the fabric is treated with an the aqueous solution having a initial pH from 9 to 11.5 and comprising 0.5-50 mM hydrogen peroxide; followed by (ii) treatment with a preformed transition metal catalyst, the transition metal catalyst present in a concentration from 0.1 to 100 micromolar of an aqueous solution wherein the initial pH of this second step is from 7-11.