Sustainable Approach to Modify the CPD Process for Knit Garments and Analysis the Effect of Curing Treatment on CPD

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The purpose of thestudy is to minimize the energy load of Cold pigment dyeing (CPD) process by minimizing the process steps. As a representative effort in this direction, the current paper describes the effect of curing treatment on Cold pigment dyed garments considering different properties .Samples pretreatment were done in the same bath and same method followed for both samples. In case of dyeing, two different methods i.e. existing (Pad-dry-cure) and experimental (pad-dry) were used to develop the samples. Prepared samples were evaluated in terms of CMC_ΔE value, color fastness properties, drape co-efficient, GSM, fabric strength and surface morphology respectively. Results of the study evinced that experimental process is better than existing process by considering process time and energy savings. Color fastness value of the experimental sample offer comparatively better values than the existing process while other results are within range. Experimental process can reduced up to 6% processing time along with 2.35 Kw power savings for each batch. The experimental (pad-dry) process of CPD will provide a strong economical benchmark for the garments dyeing industry to adopt this sustainable process.

In the fast fashion world when time to market is paramount, the concept of garment dyeing post make up is increasingly adopted by manufacturers. Garment dyeing can be defined as the “application of color to fully fashioned apparel articles, may be in the form of garments cut and sewn either prepared or unprepared knitted fabrics and then dyed, garments and / or components knitted from either prepared or unprepared yarn and then dyed, The benefits of processing good through garment dyeing procedure revolve around quick response with minimize lead time and improved inventory control.

It is also increased the challenges of achieving the unique ,fashionable & value added products, while remaining comparative in price similar to reduction in operating margins, the dyeing process should be more economical while producing high value product. Pigments are kinds of insoluble colorants used for fibers, yarns and garments very commonly, which can retain stable chemical structure throughout the coloration process in its dispersed solution. Water-based pigment systems, are eco-friendly pathways. Pigments are dispersed into water with the assist of auxiliaries, such as dispersants, emulsifiers, anti-setting agents, etc. Water-based pigment has been widely applied in coloration for textiles, paints, architecture, and wood and so on. The Cold pigment dyeing is one kind of garments dyeing process which give an uneven look at low temperature. This process is also referred to as wave dyeing, top dyeing, oil wash and random dyeing. It is a simple and eco-friendly pigment dyeing process obtained by the usage of a binder, fixer along with pigments (any color).