| 摘要 |
A bleaching composition is disclosed comprising a peroxygen bleaching compound, capable of yielding hydrogen peroxide in an aqueous medium, and one or more bleach precursors wherein the ratio of hydrogen peroxide to precursor ranges from 0.1 to 2. It is also important that bleaching occur in an aqueous medium held at a pH from 8.5 to 9.4. A combination of sodium perborate and sodium benzoyloxybenzene sulphonate is the preferred bleaching composition. |
