Sizing methods and compositions for carbon dioxide dry cleaning

A method for dry-cleaning garments or fabrics in carbon dioxide, comprising:

• (a) combining a garment or fabric article to be cleaned and a liquid dry cleaning composition in a closed drum so that said closed drum contains both a liquid phase and a vapor phase, said liquid dry cleaning composition comprising a mixture of liquid carbon dioxide, surfactant, and a sizing agent;
• wherein said sizing agent is a hydrocarbon resin having a molecular weight of from about 500 to about 3000 grams per mole;
• then
• (b) agitating said article in said drum so that said article contacts both said liquid dry cleaning composition and said vapor phase for a time sufficient to clean said article;
• and then
• (c) removing the cleaned article from said drum with said sizing agent deposited thereon at a weight on goods of about 0.05 to about 3 percent.

A liquid dry-cleaning composition, useful for carrying out dry cleaning in carbon dioxide, said composition comprising:

• (a) from 0 to 10 percent water;
• (b) carbon dioxide;
• (c) from 0.1 to 10 percent surfactant;
• (d) from 0 to 50 percent of an organic co-solvent;
• and
• (e) from 0.1 to 10 percent sizing agent, wherein said sizing agent is a hydrocarbon resin having a molecular weight of from about 500 to about 3000 grams per mole.