Abstract
Garments washing is a novel process to impart worn-out look, to modify the appearance and to improve the comfort ability of the garments. Bleach wash is used to fade the color of denim in a higher degree as well as bleach wash has effect on the physical and mechanical properties of the denim also. This paper presents the impact of bleach wash and subsequent softening treatment on 100% cotton denim dyed with indigo dye. Garments were washed using a bleach concentration of 10 g/l for 30 minutes in 50oC temperature and then softened using standard recipe. The physical, mechanical and color properties were analyzed in before wash, after desizing, after bleaching and after softening. The properties that were analyzed include hand feel, tensile strength, seam strength, fabric weight, stiffness, dimensional stability and color fading. Bleach washed and softened garments exhibit a great difference in the physical, mechanical and color properties than the unwashed garments
Highlights
In the readymade garments industry sector garments washing is a new technology
The fabric weight reduced during the bleaching and softening
The bleaching and softening both has great effect on the stiffness property of the denims especially in the warp way as the warps are mostly sized and the size materials are removed by the bleaching treatment
Summary
In the readymade garments industry sector garments washing is a new technology. After making garments from solid color from dyed or pigment printed fabrics, the garments are washed by garments washing, color and outlook of the garments are modified [1]. That’s why despite of having some drawbacks like- bleach decomposes the cellulose destroys the fabric, tends to make the fabric yellowish, needs to be neutralized increases cost and adds a more step to the processing time the bleach wash cannot be avoided. Besides these drawbacks, bleaching agents especially chlorine bleaches are health hazardous and the effluents are hazardous to the environment [3], the process controlling is very tough and same results cannot be achieved in every batch even after following the same recipe [4]. This paper investigates the impact of bleach wash on the color properties of denim and the physical and mechanical properties as these properties determines the wearers feel and life of the end product
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