Bleach composition of detergent base powder and agglomerated manganese-alluminosilicate catalyst having phosphate salt distributed therebetween

Claim 1

A bleaching composition comprising: (a) from about 1 to 20% of a bleach catalyst in aggregate form, exclusive of any peroxy compound precursor within the aggregate, comprising: (i) from 0.5 to 95% of a manganese (II) cation adsorbed onto an aluminosilicate support material, said support having an average diameter size of about 2 to 10 microns, the ratio of manganese (II) cation to aluminosilicate support material ranging from about 1:1000 to 1:10; (ii) from about 10 to 80% of a phosphate salt selected from the group consisting of tripolyphosphate, orthophosphate, pyrophosphate and mixtures thereof; and (iii) from about 0.1 to 40% of a binder, the amount based on a dry solids weight content of the total aggregate, said binder being different from said phosphate salt; wherein at least 75% of said aggregates have a diameter ranging from at least 250 to about 2000 microns, said catalyst also leaving undissolved less than 5% particles of diameter 125 microns or higher when dispersed in water for two minutes at pH 10 and 40° C., and wherein neither the aggregates nor their components have a pH of more than 10; (b) a base detergent powder comprising: (i) from about 1 to 80% of a phosphate salt; and (ii) from 0.5 to 50% of a peroxy compound.