Wax encapsulated actives and emulsion process for their production.

摘要

A process is provided for preparing encpasulated active particles by the steps of: dispersing active in molten wax; emulsifying the active/wax dispersion in aqueous surfactant solution; quenching the capsules by cooling; and retrieving solidified capsules. The active materials may be selected from chlorine or oxygen bleaching agents, bleach precursors, enzymes, perfumes, fabric softening agents, and surfactants. Optimal capsules are obtainable using a blend of hard and soft waxes. The capsules are useful in cleaning compositions such as automatic dishwashing detergent formulations.