High speed spinning process using heated fluid environments...

Details High speed spinning process using heated fluid environments... High speed spinning process using heated fluid environments...

D - Textiles, Paper

01

D

18/634

D01D 5/12 (2006.01) D01D 5/098 (2006.01) D01F 6/62 (2006.01)

Patent

CA 1108367

Abstract of the Disclosure HIGH SPEED SPINNING PROCESS USING HEATED FLUID ENVIRONMENTS FOR THE MANUFACTURE OF YARNS. Manufacture of polyester yarns by a high speed draw spinning process in which freshly extruded filaments are passed se- quentially through fluid zones. The fluid zones comprise: a first one heated to a temperature above the melting point of the filaments and a second one heated to a temperature above the glass transition temperature of the filaments. These two zones are separated from one another. In the present invention, yarns of comparable properties to conventional spin-lag-draw hot relax yarns are obtained, thereby substantially overcoming the deficiencies generally encountered in the prior art at these high speeds.

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