Concentrated heavy duty particulate laundry detergent

Details Concentrated heavy duty particulate laundry detergent Concentrated heavy duty particulate laundry detergent

B - Operations, Transporting

08

B

134/3

B08B 3/08 (2006.01) C11D 1/66 (2006.01) C11D 3/06 (2006.01) C11D 3/12 (2006.01) C11D 7/00 (2006.01) C11D 17/06 (2006.01)

Patent

CA 1096740

Abstract of the Disclosure A free flowing particulate heavy duty laundry detergent containing no more than 8.7% of phosphorus (from phosphate) is comprised of sodium tripolyphosphate particles having nonionic detergent in the interior and on the surface thereof, which adheres a coating of smaller particles of ion- exchanging zeolite to the phosphate. Also within the invention is a method of making such a product by premixing spray dried sodium tripolyphosphate particles and smaller zeolite particles and admixing with them, as by spraying, in liquid form, onto moving particles, a normally liquid or pasty nonionic detergent, such as a higher fatty alcohol polyethylene oxide condensation product, which penetrates the sodium tripolyphosphate particles and adheres zeolite particles to the surfaces thereof.

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