Compositions – Durable finishes for textile materials – or processes of... – Oil or water repellent or soil resistant or retardant
Patent
1986-04-07
1988-05-24
Albrecht, Dennis
Compositions
Durable finishes for textile materials, or processes of...
Oil or water repellent or soil resistant or retardant
23313AS, 252140, 264117, C11D 308, C11D 312, C22B 114, D06M 1106
Patent
active
047464453
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 No's. 10-100 sieve range and are agglomerates of finely divided bentonite. The agglomerates are of a bulk density in the range of 0.7 to 0.9 g./ml., a moisture content of 8 to 13% and a frangibility less than 30, and include 1 to 5% of a binder (sodium silicate). The described bentonite agglomerates are manufactured 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: 3625902 (1971-12-01), Sumner
patent: 3852211 (1974-12-01), Ohren
patent: 3915882 (1975-10-01), Nirschl
patent: 3966629 (1976-06-01), Dumbrell
Albrecht Dennis
Colgate-Palmolive Company
Grill M. M.
Lieberman B.
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