| 摘要 |
PCT No. PCT/US94/12246 Sec. 371 Date Apr. 19, 1996 Sec. 102(e) Date Apr. 19, 1996 PCT Filed Oct. 21, 1994 PCT Pub. No. WO95/12657 PCT Pub. Date May 11, 1995There is provided a particulate solid machine dishwashing detergent composition containing alkali metal percarbonate bleach coated with a mixed salt comprising an alkali metal carbonate and an alkali metal sulphate salt; a peroxyacid bleach precursor; an acidification agent; and a means for enabling delayed release of said acidification agent such that the pH of said composition as a 1% solution in water at 20 DEG C. is from 9.5 to 13.0 prior to release of said acidification agent, and such that the pH of said composition as a 1% solution in water at 20 DEG C. is from 9.3 to 7.0 subsequent to complete release of said acidification agent.
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