Naik, Shailaja D.Matti, Shreela B.2021-02-032021-02-032016-06https://krishikosh.egranth.ac.in/handle/1/5810160873The present study was carried out during 2014-16 at Dharwad with the objectives to elicit the information on most popularly selling surfactants in local market, to assess the efficiency of surfactants on stain removal and to study the effects of surfactants on colour strength, structural, performance and durable properties of dyed fabric. On the basis of survey results, three popularly sellable surfactants in the local market and four common stains experienced by the working men and women were selected for the present study. Bleached organic cotton sample was stained with curry, grease, pickle and mud and washed with selected three surfactants viz., WG, PW and WBO separately upto 3 washes and assessed for discolouration after every wash. To assess the impact of surfactants the white cotton was vat dyed in four colours viz., black, blue, green and red and subjected to 15 hand washings. The results revealed that PW was focused to be effective in removing curry, grease and pickle stains where as WBO in removing mud stain. The K/S value (57.14 %) of curry stain was found to be lighter after 3rd wash with PW surfactant than mud, grease and pickle. There was increase in the cloth count and cloth thickness after 5th wash and due to progressive consolidation of yarns in both directions. However, the fabrics attained dimensional stability there after. The test samples showed higher crease recovery in weftway than warpway indicating its softness and pliability. There was decrease in tensile strength and elongation (%) of the test samples both warpway and weftway as well as abrasion resistance may be due to mechanical agitation that lead to wear-tear of fibres and in turn yarns. The fabric dyed in blue and green colours were sensitive to washing compared to black and red. Red sample withstood number of washes where as black gradually indicated a tinge of greenness and blueness.EnglishThesis