Polyester yarn, self-texturing in fabric form

Details Polyester yarn, self-texturing in fabric form Polyester yarn, self-texturing in fabric form

D - Textiles, Paper

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D01D 5/253 (2006.01) D01D 5/08 (2006.01) D01D 5/22 (2006.01) D01F 6/62 (2006.01) D03D 15/04 (2006.01)

Patent

CA 1202457

ABSTRACT A polyester yarn having filaments with aperiodic varying shrinkage levels along their lengths, the filaments having within-filament and between- filament shrinkage C.V.'s of at least 10%. The yarn may be made by conventional melt spinning within a critical narrow range of spinning speeds wherein yarn shrinkage decreases rapidly with spinning speed. A greige fabric incorporating the yarn as filling is textured by shrinking the unrestrained fabric, then heating the fabric sufficiently to cause the yarn to elongate.

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