Granulation process for making granular bleach activator compositions and resulting product

摘要

An improvement in the process of granulating bleach activator using an organic binder selected from starch and cellulose derivatives polyacrylates, polymaleates and polyvinyl pyrrolidone, the process comprising dry mixing particulate activator and at least a portion of the binder in particulate form and then moistening the mixture with a granulating liquid, comprises using as granulating liquid an aqueous solution of a granulating aid which is a sequestrant optionally combined with a water-soluble inorganic salt. The granules are then dried. The product has improved activity in laundry detergents especially in low temperature wash and cold fill conditions.