Preparation and characterization of porous polyester fibres by salt leaching method

Porous polyester fibres with cotton-like dull characteristics were produced by salt leaching method. Polyester was synthesized in the presence of common salt. Fibres containing submicron size salt particles (0.5-1%) were prepared by melt spinning. The fibres were washed in hot water to remove the sa...

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Published in:Journal of the Textile Institute 2013-04, Vol.104 (4), p.351-356
Main Authors: Upasani, Prasad S., Banwari, Bhawna, Sreekumar, T.V., Agarwal, Uday S., Kelkar, Anil K.
Format: Article
Language:English
Subjects:
cotton-like
Crystallization
Fibers
Fibres
Leaching
Melt spinning
polyester fibre
Polyester resins
Polyesters
porous fibre
Reflectivity
salt leaching
Yarns
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container_title Journal of the Textile Institute
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creator Upasani, Prasad S.
Banwari, Bhawna
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Kelkar, Anil K.
description Porous polyester fibres with cotton-like dull characteristics were produced by salt leaching method. Polyester was synthesized in the presence of common salt. Fibres containing submicron size salt particles (0.5-1%) were prepared by melt spinning. The fibres were washed in hot water to remove the salt particles creating small craters of size 50-1000 nm. Partially oriented yarn (POY) and fully drawn yarn (FDY) were produced. POY samples were textured to produce polyester textured yarn containing salt particles. The influence of salt particles on polymer crystallization was investigated and found that the presence of salt significantly influences the rate of crystallization. The gloss values of porous FDYs were compared with standard semi-dull polyester yarns of same denier. The light scattering behaviour of the yarn has been enhanced due to porosity. This resulted in a fibre with better dullness characteristics. The light reflectance of porous yarn is lower in the 400-700 nm region compared to control FDY samples. The dyeability of the porous fibre was better than non-porous counterpart.
doi_str_mv 10.1080/00405000.2012.727241
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ispartof Journal of the Textile Institute, 2013-04, Vol.104 (4), p.351-356
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subjects cotton-like
Crystallization
Fibers
Fibres
Leaching
Melt spinning
polyester fibre
Polyester resins
Polyesters
porous fibre
Reflectivity
salt leaching
Yarns
title Preparation and characterization of porous polyester fibres by salt leaching method
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