Dry cleaning
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Dry cleaning is any cleaning process for clothing and textiles using a solvent other than water. The modern dry cleaning process was developed and patented by Thomas L. Jennings.Dry cleaning still involves liquid, but clothes are instead soaked in a water-free liquid solvent, tetrachloroethylene (perchloroethylene), known in the industry as "perc", which is the most widely used solvent. Alternative solvents are 1-bromopropane and petroleum spirits.Most natural fibers can be washed in water but some synthetics (e.g., viscose, lyocell, modal, and cupro) react poorly with water and must be dry-cleaned.
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