Washing is one of the most important finishing treatments applied on apparels that have great usage to create special outlooks and improving the fashion. Technologically denim washing is the most important fashion element for clothing industry. The aim of this paper is to determine the effects of industrial stone enzyme wash on cotton-jute blended denim fabric. For this investigation, blended denim (75% cotton & 25% jute of total weight of fabric with twill 3/1 weave construction) leg panels were chosen. The selected denim fabric has been processed by stone enzyme wash, in order to evaluate the washing effects on denim leg panel, changes of fabric specification (ends/inch, picks/inch), fabric tensile strength, GSM, shrinkage, color fastness and rubbing test results has been determined after enzyme wash. Then pH is measured, and SEM test done to check the microscopic changes on the fabric surface.
The resistance of the material to a change of its color characteristics during exposure to sunlight, rubbing and washing as domestic and laundry and other various ways are referred to as color fastness of dyes or pigments. In this research, 100% cotton and blended fabrics were dyed with fluorescent pigments i.e. Shining Flu Pink-F17 and Papillion Orange-FGRN in exhaust dyeing method. The improvement of color fastness properties, i.e. color fastness to washing, rubbing, perspiration and light were observed with the treatment of using antioxidants and UV-absorbers. There were eight samples of dyed fabrics (Four samples of 100% cotton knit fabric and four samples of 60/40 cottonpolyester blended fabrics) treated with 1% (v/v) of antioxidants i.e. Gallic acid, L-Ascorbic acid and UV absorbers i.e. 2-hydroxy-4 methoxy-benzophenone, 4-4 dimethoxy-benzophenone respectively. The treatment of antioxidant L-Ascorbic acid and UV absorber 4-4 dimethoxy-benzophenone provides satisfactory improvement of fastness properties than other antioxidants and UV absorbers. The results were mainly interpreted in terms of color strength, visual assessment of evenness and fastness ratings.
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