Patent ID: 7022660

Claim:
A process for preparing a detergent particle comprising: i) providing a particle core comprising a detergent active material, said core being an agglomerate having a surface with irregularities and crevices, and ii) applying a water soluble, non-silicate coating material comprising a mixture of alkali metal carbonate and sulfate in an aqueous or slurry form onto said core and drying said aqueous or slurry form to provide a particle coating layer at least partially covering said particle core, said particle coating layer comprising said water soluble coating material whereby said particle coating layer provides a surface area reduction of at least about 10% and wherein said detergent active material in said particle core comprises a blend of surfactants and dry detergent ingredients wherein said blend of surfactants and dry detergent ingredients comprises a blend of anionic surfactants and alkali metal carbonates.