METHOD OF OBTAINING COATED GRANULES OF BRIGHTENING ACTIVATOR

摘要

The novel feature in production of coated bleach activator granules is that the granules are coated and simultaneously or subsequently tempered, the granules preferably having a melting point above 100 degrees C and the coating material a softening or melting point of 30-100 degrees C. The coating is preferably applied in a mixer or a fluidised bed device and the tempering is preferably effected at or near to the softening or melting point of the coating material.