METHOD OF POWDER DETERGENT

摘要

The method includes the steps of ; (a) manufacturing dry powder detergent by spraying detergent slurry from the top of counter-current spray dryer; (b) crushing in high-speed rotary granulating machine; (c) spraying 0.5-5 wt% polymer such as acrylic acid polymer, acrylic acid-malein acid anhydride copolymer or acrylic acid-malein acid anhydride-methylvinyleter copolymer on it; (d) applying 2-30 wt% insoluble inorganics to it.