Process for improving the elastic recovery of a polyethylene...

Details Process for improving the elastic recovery of a polyethylene... Process for improving the elastic recovery of a polyethylene...

D - Textiles, Paper

02

J

28/49, 18/636

D02J 13/00 (2006.01) D01B 9/00 (2006.01)

Patent

CA 1147917

Abstract of the Disclosure A process is provided for improving the elastic recovery of a previously oriented fibrous material comprising at least 85 mole percent polyethylene terephthalate by annealing the fibrous material at a temperature of about 180 to about 210°C for a period of about 1 to about 30 minutes, while controlling the length of the fibrous material in a manner sufficient to prevent a longitudinal shrinkage or extension of greater than about 5%. The resulting annealed fiber is then preferably crimped. -1-

359499

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