| 摘要 |
A bleaching composition comprises a ligand, L, which forms a complex with a transition metal, the bleaching composition upon addition to an aqueous medium providing an aqueous bleaching medium substantially devoid of a peroxygen bleach or a peroxy-based or peroxyl-generating bleach system, said ligand having a hydrophobic substituent and present in the bleaching composition as a free ligand, said hydrophobic substituent increasing hydrophobicity of the transition metal binding moiety of the ligand, wherein the ligand has a Log P value of at least 3 and the bleaching composition comprises at least 0.005% wt/wt of a transition metal sequestrant, the sequestrant having a Log P value of below 1, preferably below 0, most preferably below -1.5. The composition provides superior bleaching for oily stains. |
