Abstract
The aims of this paper is to demonstrate the effect of warp tension on fabric colour for several types of weaves structures, and found a relationship between them.The image analyse technique used to determine the proportion of yarns colour appearance, the advantage of this techniques is the rapidity and reliability.The woven fabric samples are consisting of a polyester warp yarn with continuous filaments and density of 33 end/cm, a polypropylene weft yarn with a density of 24 pick/cm, and the warp tension ranged between 12-22 cN/tex.The experimental results demonstrated the effect of the warp tension on the colour of fabric, and this effect is related to several factors, where the large proportion of warp appearance leads to larger effect on fabric colour.The difference in the value of colour differences ΔEcmc is larger is in the range 16 to 20 cN/tex of warp tension.Using statistical methods, a mathematical model to calculate the amount of the colour difference ΔEcmc caused by the change in warp tension had been proposed.
Highlights
Designing of fabrics require using a set of coloured yarns, which in combination give a wanted visual appearance
The experimental results demonstrated the effect of the warp tension on the colour of fabric, and this effect is related to several factors, where the large proportion of warp appearance leads to larger effect on fabric colour
A mathematical model to calculate the amount of the colour difference ΔEcmc caused by the change in warp tension had been proposed
Summary
Designing of fabrics require using a set of coloured yarns, which in combination give a wanted visual appearance. This is done by combining the yarns in the weave, either by showing the colour or hiding a warp above the weft or vice versa [1][2]. The use of weft and warp coloured yarns with weave structure allow to development fabric designs, by appear the desired colour in one area of the design, and we can obtain more large of colours effects by changing the fabric constructional parameters [3] [4] [5], this constructional parameters of fabric can influence even more the fabric reflect [6]. The warp tension in the weaving loom have been the subject of many investigation [9] [10][11][12][13] to increase loom producing by decrease cutting of warp yarn, by suitable warp tension value, and to improve the fabric quality
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