Stabilized bleaching compositions

摘要

PCT No. PCT/US94/07823 Sec. 371 Date Jan. 16, 1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed Jul. 13, 1994 PCT Pub. No. WO95/02676 PCT Pub. Date Jan. 26, 1995There is a bleaching composition comprising alkali metal percarbonate as an oxygen releasing compound, and alkali metal carbonate particles or bicarbonate particles of defined size (mean particle size of 300 mu m or greater) wherein fewer than 10% of the particles have a particle size below 250 mu m. The said composition comprises discrete particles of said alkali metal percarbonate salt and said alkali metal carbonate or said alkali metal bicarbonate. The particle bleaching composition may form a component of a machine dishing composition, a bleach booster composition or in particular a laundry detergent composition. The percarbonate has increased storage stability in the composition of the invention.