Fabric softening bentonite agglomerates for use in laundry deter

Details Fabric softening bentonite agglomerates for use in laundry deter Fabric softening bentonite agglomerates for use in laundry deter

1986-04-07

1988-08-30

Albrecht, Dennis

Compositions

Durable finishes for textile materials, or processes of...

Oil or water repellent or soil resistant or retardant

23313R, 23313AS, 252140, 252174, 25217425, 252539, C11D 308, C11D 314, C11D 1100, D06M 1106

Patent

active

047675462

ABSTRACT:
Bentonite agglomerates are made which are suitable for use as a particulate fabric softener for softening washed laundry, especially when incorporated in detergent compositions by mixing with spray dried beads containing essential detergent composition components. Such agglomerates are in the Nos. 10-100 sieve range and are agglomerates of finely divided bentonite. The agglomerates are of a bulk density in the range of 7.0 to 0.9 g./ml., a moisture content of 8 to 13% and a frangibility less than 30, and includes 1 to 5% of a binder (sodium silicate). Also disclosed is a method for making the bentonite agglomerates by spraying an aqueous solution of the binder onto moving surfaces of finely divided bentonite until the moisture content thereof is elevated and the amount of binder for the agglomerate is sufficient, and drying the agglomerated particles to their "equilibrium moisture range".
The agglomerated particles, which are irregular in shape and craggy of surface, when mixed with spray dried built detergent particles, do not objectionably segregate from them despite different bulk densities and some variations in particle sizes, and it is considered that the irregularity of shape and the cragginess of the agglomerated bentonite bead surfaces help to maintain the uniformity of distribution of the agglomerates in such fabric softening laundry detergent product.

REFERENCES:
patent: 3852211 (1974-12-01), Ohren
patent: 3915882 (1975-10-01), Nirschl
patent: 3966629 (1976-07-01), Dumbrell
patent: 4488972 (1984-12-01), Weinstein

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