Patent ID: 7902139
Filing Date: 2011-03-08
Classification: C11D

Abstract:
1. A laundry treatment composition comprising: (i) from 2 to 70 wt % of a surfactant comprising water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms; and ii) from 0.0001 to 0.1 wt % of an azine dye, wherein the dye is of the following core structure: wherein R the dye is substituted with at least one SO the B ring does not carry a negatively charged group or salt thereof; and the A ring may further substituted to form a naphthyl; the dye is optionally substituted by groups selected from: amine, methyl, ethyl, hydroxyl, methoxy, ethoxy, phenoxy, Cl, Br, I, F, and NO wherein the A ring is further substituted to form a naphthyl.