HECOL476 Lecture Notes - Lecture 11: White Spirit, Tetrachloroethylene, Vapor Pressure
14 Sep 2016
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Document Summary
Rise in casual clothing has lead to a decrease in dry-cleaning. It is referred to as dry because there is no water, but a liquid solvent is used in the place of water to remove soil. Soils naturally soluble in organic solvents include all greases, fats, oil-based substances. Water-soluble soils can also be made soluble in solvents through the use of detergents. Anionic detergents are used to add water to solvent, the detergent and water form micelles in the solvent that are able to remove water soluble soils and hold them in suspension. In 1825, jean baptise jolly was the rst to use a non-water solvent. Lamp oil spilt onto cloth and removed stains. In earliest cleaning methods, clothing pieces were taken apart; very labour intensive. Pieces were put in a warm oven to dry and reassembled into the garment. Carried out in a factory setting rather than the home.
