Method of dry cleaning fabrics using densified carbon dioxide

Details Method of dry cleaning fabrics using densified carbon dioxide Method of dry cleaning fabrics using densified carbon dioxide

1995-03-06

1997-10-14

Diamond, Alan D.

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Dry cleaning

8111, 510285, 510286, 510288, 510289, 510290, 510291, B06L 100

Patent

active

056767056

ABSTRACT:
A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide and a surfactant in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide and 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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