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Textile Research Journal
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False Twist Texturization of Polypropylene Multifilament Yarns

Part II: Reducing Feeder Yarn Crystallinity Through Tension Annealing

A.K. Sengupta

Department of Textile Technology, Indian Institute of Technology, Delhi, New Delhi 110016, India

K. Sen

Department of Textile Technology, Indian Institute of Technology, Delhi, New Delhi 110016, India

A. Mukhopadhyay

Department of Textile Technology, Indian Institute of Technology, Delhi, New Delhi 110016, India

Annealing followed by rapid quenching is used to reduce the ctystallinity of poly propylene filaments. The effect of reduced feeder yarn crystallinity on the texturizability of the fibers is studied. The tension-annealed samples show a considerable increase in crimp rigidity values compared to the parent, unannealed samples, particularly when the contact time in the heater during texturing is low.

Textile Research Journal, Vol. 56, No. 6, 389-392 (1986)
DOI: 10.1177/004051758605600608
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