Method of dry cleaning fabrics using densified liquid carbon dio

Details Method of dry cleaning fabrics using densified liquid carbon dio Method of dry cleaning fabrics using densified liquid carbon dio

1996-08-20

1997-11-04

Diamond, Alan D.

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Dry cleaning

510285, 510288, 510289, 510290, 510291, D06L 100

Patent

active

056834730

ABSTRACT:
A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide, preferably in a liquid phase, and a selected surfactant which is soluble in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

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