Studies on Wicking Behaviour of Polyester Fabric

Arobindo Chatterjee,Pratibha Singh

doi:10.1155/2014/379731

Arobindo Chatterjee, Pratibha Singh

Open Access

https://doi.org/10.1155/2014/379731

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Abstract

This paper aims to investigate vertical wicking properties of polyester fabric based on change in sample direction and change in tension. Also experimental results are compared with theoretical results. Polyester fabric made out of spun yarn with four types of variation in pick density was used. Theoretical values of vertical wicking were calculated by using Lucas-Washburn equation and experimental results were recorded using strip test method. Maximum height reached experimentally in both warp way and weft way is more than that of the theoretical values. The maximum height attained by fabric experimentally in weft is more as compared to warp way. Vertical wicking increases with increase in tension. This paper is focused on wicking which plays a vital role in determining comfort and moisture transport behavior of fabric.

Highlights

Transport of water through textiles plays a very important role in deciding comfort, dyeing and finishing of textile fabrics, liquid filtration, and so forth
Maximum height reached in 1800 sec with varying tensions: P1
Maximum height reached in 1800 sec with varying tensions: P2

Summary

Introduction

Transport of water through textiles plays a very important role in deciding comfort, dyeing and finishing of textile fabrics, liquid filtration, and so forth. Transport of water takes place through the phenomenon of capillarity. Capillarity is the ability of liquids to penetrate into fine pores with wettable walls and be displaced from those with nonwettable walls [1]. Wicking can only occur when a liquid wets fibres assembled with capillary spaces between them. The resulting capillary forces that arise from the wetting of the fabric surface due to pressure difference created by surface tension of the liquid across the curved liquid/vapor interface drive the liquid into the capillary spaces. Because capillary forces are caused by wetting, wicking is a result of spontaneous wetting in a capillary system [3]. Capillary forces are governed by the properties of the liquid, liquid-medium surface interactions, and geometric configurations of the pore structure in the medium

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