Value addition of mulbery silk waste and Tibetian wool through blending
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Date
2004-12
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Wool, shorn off from sheep, is a vital raw material for the woollen industry. Sheep breeds available at Kumoan region Viz. Merino and Napali/Tibetian produce fine to coarse wool. Blending of Tibetian wool with Mulbery silk waste brings about favorable changes in the performance of resultant fabric. Therefore present study was undertaken to determine Tibetian wool and Mulbery silk blend best in all respect from performance to aesthetic appeal and economy. Physico-chemical properties Tibetian wool and Mulbery silk waste were studied viz. fiber length, strength, elongation, crimp, fineness, effect of acid, alkali etc. Pure (wool/silk) and blended single ply yarns of different ratio i.e. 35:65, 50:50 and 65:35 were prepared on Bageshwari Charkha for weaving. Knitting yarn prepared by twisting two single-ply yarn. Physical properties of pure and blended yarns were evaluated for strength, elongation, yarn count, twist/inch, evenness etc. All knitting yarns pure and blended were dyed with acid, basic and reactive dyes. Colourfastness of dyed yarns tested to light, washing, perspiration and crocking. Shawls were prepared from pure and blended weaving yarns and sweaters were prepare from pure and blended knitting yarns and different physical properties of fabrics were evaluated. It has been found that Tibetian wool is coarser than Mulbery silk waste fiber. With increase in the Tibetian wool fiber, fabric thickness and thermal insulation increased but strength decreased. Thus from the present study it can be concluded that 50:50 Tibetian wool and Mulbery blend proportion is best in all respect i.e. from performance and good aesthetic appearance of the fabric.
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