High bulk density particulate heavy duty laundry detergent

Details High bulk density particulate heavy duty laundry detergent High bulk density particulate heavy duty laundry detergent

1982-09-29

1984-07-31

Albrecht, Dennis L.

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Removing formation impurities from artifical fiber

252 91, 252140, 25217425, C11D 308, C11D 310, C11D 312, C11D 1102

Patent

active

044628048

ABSTRACT:
A free flowing phosphate-free high bulk density particulate heavy duty laundry detergent is comprised of particles of spray dried base beads containing ion exchanging zeolite, sodium carbonate and sodium bicarbonate into which is absorbed a nonionic detergent. The product is made by spray drying an aqueous mixture of the zeolite, carbonate and bicarbonate, optionally with soluble silicate present too, decomposing some of the bicarbonate to carbonate during the drying operation and mixing nonionic detergent in liquid form with the spray dried base beads produced and absorbing such detergent into such beads.

REFERENCES:
patent: 3639288 (1972-02-01), Kerkhoven
patent: 3755180 (1973-08-01), Austin
patent: 3868336 (1975-02-01), Mazzola
patent: 3886098 (1975-05-01), Disalvo
patent: 3944500 (1976-03-01), Gancy
patent: 3971726 (1976-07-01), Smith
patent: 3985669 (1976-10-01), Krummel
patent: 4032465 (1977-06-01), Bauer
patent: 4115308 (1978-09-01), Guerry
patent: 4260651 (1981-04-01), Wixon
patent: 4274975 (1981-06-01), Corkill

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