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ThesisItem Restricted Blending of mulberry silk waste/viscose fibre for construction of knitted fabrics(Punjab Agricultural University, Ludhiana, 2018) Bajaj, Shikha; Bains, SandeepThe present review examines various properties of yarns and knitted fabrics developed by blending mulberry silk waste and viscose fibres in different proportions. Yarns and fabrics were formed by blending at gillbox stage and spinning was carried out on worsted spinning system and blending ratios formed included 60:40, 50:50 and 40:60 for Mulberry silk waste: Viscose proportions. All the proportions were spun into 15 and 20 metric counts (Nm). Yarn blended in proportion of 50% Mulberry silk: 50% viscose and 40% Mulberry silk: 60% viscose were found suitable for fabric development, in both 15 Nm and 20 Nm yarn counts due to less unevenness, cost benefits and high single yarn strength. Developed knitted fabrics blended in proportion of 50% Mulberry silk: 50% viscose in 20 Nm count and 40% Mulberry silk: 60% viscose in 15 Nm count, in single jersey construction on circular knitting machine were found suitable for commercial production due to highest thermal insulation, less shrinkage, good drapability, less spirality per centage, high tensile strength properties and lower production cost. Knitted fabrics can be used for development of tops and tunics, T shirts and polos, sweaters, ponchos, stole, shrugs, muffler, childrens’ pant and light weight top sheets. Fabric blended in composition of 40% mulberry silk: 60% viscose was found to be most appropriate for apparel production due to higher values of thermal insulation, lower shrinkage and tensile strength properties. Cost of blended fabrics were much less as compared to pure silk fabrics and thus found to be suitable for large scale production.