Effect of Reactive Dyes on Silk Fabrics
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Date
2017-06
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University of Agricultural Science, Dharwad
Abstract
The present study on “Effect of reactive dyes on silk fabrics” was carried out during 2015-2017 with the objectives to assess the effect of reactive dyes on performance properties of silk fabrics, to study the effect of laundering on functional properties of reactive dyed silk fabrics and finally estimate the cost calculation of reactive dyed silk fabrics. Four types of plain woven silk fabrics and five different solid pantone colours of Ramazol reactive dyes were selected to assess the physical and colourfastness properties. The results were analyzed applying suitable statistical tests. Results revealed that the cloth count, cloth thickness, crease recovery and drape coefficient of dyed silk samples were increased compared to control. Maximum shrinkage was in weft direction and GSM was in warp direction. Muga showed highest bending length than control. Except Muga rest all dyed silk samples attained highest elongation in weft way. Cloth weight and thickness of all the abraded reactive dyed silk samples attained lower values of cloth weight and higher values of thickness compared to control sample. The results of colourfastness property revealed that, on successive washes colour strength values of reactive dyed silk fabrics were in decreasing trend. Standard samples attained higher values of colour strength (K/S) than dry and wet rubbing samples. Standard samples had highest values of colour strength loss than the dyed samples exposed to sunlight. Except Muga rest all reactive dyed silk samples attained highest values of total colour difference subjected to sunlight. Colour strength of standard silk samples depicted highest values followed by samples subjected to acidic and alkaline media of perspiration. All black wet silk samples showed maximum per cent of colour strength loss than damp and dry sublimation. The cost of reactive dye per kg was ` 744/-.