FAIRFIELD, N.J. — Demand for perchloroethylene in the U.S. drycleaning industry dropped to 20.6 million lbs. in 2006, according to an annual survey released by the Textile Care Allied Trades Association (TCATA) — less than a tenth (7.4%) of the perc used in 1985 and almost one-third (32.5%) less than 2005’s 30.5 million lbs.
