Dry cleaning methods and compositions

Details Dry cleaning methods and compositions Dry cleaning methods and compositions

1997-08-27

1999-01-12

Diamond, Alan

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Dry cleaning

8137, 8158, 8159, 81491, 81492, 510285, 510291, 510289, 510290, 510405, 510407, 510413, D06L 100, D06L 102

Patent

active

058580220

ABSTRACT:
A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, a surfactant, and an organic co-solvent. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature. The surfactant may be either one that contains a CO.sub.2 -philic group or one that does not contain a CO.sub.2 -philic group. The organic co-solvent is preferably an alkane that has a flash point above 140.degree. F.

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Manfred Wentz; Textile Cleaning with Carbon Dioxide?; Copyright .COPYRGT. 1995 By R.R. Street & Co. Inc. (Month Unknown).

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