Abstract
The drawing or orientation stretching process is a vital post-spinning operation for a melt-spun fibre. An undrawn fibre deforms inelastically under low loads and has a poor stress value. Such a material has very little utility for most textile applications. Through the drawing operation the fibre is orientationally strengthened due to alignment of the molecular chains along the fibre axis and shows enhanced recovery. Drawing also induces changes in the levels of crystallinity and sometimes in the crystalline form. Both semicrystalline fibres with a lamellar morphology in the undrawn state and amorphous fibres with an entangled network of molecular chains are transformed into a fibrillar structure through the process of drawing. An increase in draw ratio increases the orientational order as well as conformational conversions, resulting in a structure which has much higher strength, modulus and dimensional stability compared with its undrawn state.
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© 1997 Springer Science+Business Media Dordrecht
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Sengupta, A.K. (1997). Drawing of melt-spun fibres. In: Gupta, V.B., Kothari, V.K. (eds) Manufactured Fibre Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5854-1_8
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DOI: https://doi.org/10.1007/978-94-011-5854-1_8
Publisher Name: Springer, Dordrecht
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