Construction of knitted fabrics using different blends of oak tasar waste/viscose fibre
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Date
2018
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Punjab Agricultural University, Ludhiana
Abstract
The present study entitled “Construction of knitted fabrics using different blends of oak tasar
waste/viscose fibre” was carried out with the objectives, to develop blended yarns from oak
tasar waste/viscose fibres, to determine the physical and mechanical properties of the
developed blended yarns, to construct the knitted fabrics and to study their physical and
mechanical properties and to suggest suitable end uses for the oak tasar waste/viscose blended
knitted fabrics. Blending of oak tasar silk waste and viscose fibres was done in the ratio of
60:40, 50:50 and 40:60. The draw frame blending method was adopted and the requisite
amount of each fibre was combined on weight basis using worsted spinning system. Yarns of
15 Nm and 20 Nm were spun for each proportion. On the basis of yarn evenness, yarn
strength and yarn moisture regain, four optimum blended yarns were selected for the
development of fabrics and were knitted on a circular knitting machine. Physical and
mechanical properties of the developed fabrics were studied. Subjective evaluation was
carried out to analyze the hand values, end uses of the developed fabrics and the performance
of developed fabrics in textile industry. It was observed that, 80 per cent judges preferred
fabric S3 with excellent smoothness rating, 53.3 per cent judges preferred fabricS4 for
softness with excellent rating, 66.7 per cent judges preferred fabricS3 in case of uniformity
with excellent uniformity rating.40% OTW:60% viscose blended fabric of 15 Nm exhibited
best results for fabric pilling, tensile strength and elongation, snagging resistance, bending
length and fabric spirality. Whereas 40% OTW:60% viscose blended fabric of 20 Nm
exhibited best results for drapability, GSM, bursting strength and flat abrasion resistance.
Also 60% OTW:40% viscose blended fabric of 20 Nm showed best results for elastic
properties and thermal insulation. 40% OTW:60% viscose blended fabric of 15 Nm depicted
highest rating for smoothness, uniformity, tactile sensation, aesthetic appearance and total
hand value. Shrugs, ponchos, stoles and tops and tunics are the most suitable end uses for the
fabrics made from 15Nm and 20 Nm blended fabrics while quilt covers, khes/light weight top
sheet and bed sheet are the most suitable home textiles that could be made from these fabrics.
The cost of the fabric reduced with the reduction of silk proportion in the yarn.
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