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A dry-cleaning expert explains what dry cleaning is for, exactly how dry cleaning works, and what's in dry cleaning, including chemicals to avoid.
Modern dry cleaning machines use a closed-loop system in which the chilled air is reheated and recirculated. This results in high solvent recovery rates and reduced air pollution. In the early days of dry cleaning, large amounts of perchloroethylene were vented to the atmosphere because it was regarded as cheap and believed to be harmless.
Trichloroisocyanuric acid is an organic compound with the formula (CONCl) 3.It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis. [1] [2] [3] This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.
The chemist Sylvia Stoesser (1901–1991) had suggested tetrachloroethylene to be used in dry cleaning as an alternative to highly flammable dry cleaning solvents such as naphtha. [ 14 ] It is also used to degrease metal parts in the automotive and other metalworking industries, usually as a mixture with other chlorocarbons.
Carbon tetrachloride was the first chlorinated solvent to be used in dry-cleaning and was used until the 1950s. [46] It had the downsides of being corrosive to the dry-cleaning equipment and causing illness among dry-cleaning operators, and was replaced by trichloroethylene, tetrachloroethylene [46] and methyl chloroform (trichloroethane). [47]
Cleaning agents or hard-surface cleaners are substances (usually liquids, powders, sprays, or granules) used to remove dirt, including dust, stains, foul odors, and clutter on surfaces. [1] Purposes of cleaning agents include health , beauty, removing offensive odors, and avoiding the spread of dirt and contaminants to oneself and others.
The original Tide laundry detergent was a synthetic designed specifically for heavy-duty, machine cleaning (an advance over the milder cleaning capabilities of Fewa and Dreft detergent brands). Tide was first introduced in U.S. test markets in 1946 as the world's first heavy-duty detergent, with nationwide distribution accomplished in 1949.
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