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        Solvent Assisted Dyeing of Silk Fabric Using Deep Eutectic Solvent as a Swelling Agent

        Sushant S. Pawar,Ashok Athalye,Ravindra V. Adivarekar 한국섬유공학회 2021 Fibers and polymers Vol.22 No.2

        Solvent assisted dyeing of silk fabric was studied with the aim to increase color strength of silk fabric with the helpof green, eco-friendly deep eutectic solvent (DES), which act as a swelling agent. The use of a DES in solvent assisted silkdyeing showed favorable results. Silk yarns showed better swelling properties in the DES than water. Process parameterssuch as temperature, time, and concentration of DES were optimized with the help of a design expert software. Lack of fit Fvalueand P-value of the ANOVA shows that the model is significant. Optimized solvent assisted silk dyeing was carried outwith acid dye and found to be better than that of conventional dyeing in aqueous medium. DES assisted dyed silk fabricshowed desired color strength at 60 oC for 37 min, which is 10 oC and 5-10 min lesser than the conventional dyeing of silkfabric. The percentage exhaustion of DES assisted dye bath was calculated and found to be good. DES assisted dyed silkfabric showed wash, light, and rubbing fastness properties comparable to conventional aqueous dyed silk fabric.

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