Studies on Wicking Behaviour of Polyester Fabric

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.

Water infiltration impact on tensile strength and breaking strain of architectural fabrics

“…In large capillaries, water advancement is slow because of less capillary pressure, but this retained water inside them acts as additional reservoir for smaller capillaries. Some other liquid reservoirs exist at intersection points of yarns (Chatterjee and Singh 2014). So for wicking to take place, liquid placed at the naked edge of samples is the main reservoir, the liquid retained in large capillaries and intersection points of yarns acts as mini reservoirs.…”

“…This means a liquid that does not wet fibres cannot wick into fabric (Patnaik et al, 2006). Capillary forces that come from pressure differences created by surface tension move liquid in to capillary spaces (Chatterjee and Singh, 2014). The constitutive yarns are responsible for the main portion of the wicking action (Hollies et al, 1956).…”

“…In this case, the mechanisms of water seepage into the fabric are of interest. Chatterjee and Singh (2014) investigated ‘initial’ in-plane wicking properties of polyester fabric. Initial in this context means that they have monitored the wicking range for maximal 0.5 h after putting test specimens in a water bath.…”

Effect of heat-setting on the physical properties of chemically recycled polyester nonwoven fabrics

“…17,18 The wicking property of the heat-treated nonwoven fabrics was also measured to predict the void content. 19…”

“…17,18 The wicking property of the heat-treated nonwoven fabrics was also measured to predict the void content. 19 The mechanical properties of the nonwoven fabrics were evaluated using tensile, abrasion, and impact tests, and their morphology was determined. The air permeability and the color parameter of the nonwoven fabrics were also investigated.…”