Polyamide spin-texture process

Details Polyamide spin-texture process Polyamide spin-texture process

D - Textiles, Paper

01

F

18/626

D01F 6/80 (2006.01) D01D 5/22 (2006.01)

Patent

CA 1120675

POLYAMIDE SPIN-TEXTURE PROCESS ABSTRACT OF THE DISCLOSURE A spin-texture process for producing polyamide yarns is described in which a freshly extruded yarn is passed between two pairs of rotating rolls and then collected. The second pair of rolls (draw rolls) is driven at a peripheral speed greater than that of the first pair of rolls (feed roll and its associated separator roll). The feed roll is maintained at a given temperature which is correlated with other processing conditions to impart a desired level of latent crimp to the yarn. Yarns prepared by the process have a potential bulk of between 10% and 50% and are particularly useful as carpet yarns.

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