Abstract
Inverse relaxation is an undesirable phenomenon occurring with textile fibres or yarns which leads to certain fabric faults such as weft bars when fabric formation process gets interrupted due to unavoidable stoppages for indefinite times. In the present article, polyvinyl alcohol (PVA) fibre-blended polyester ring-spun yarns are prepared having different blend percentage and twist multiplier and their structure is modified by dissolution of PVA fibres. The inverse relaxation behaviour of polyvinyl alcohol fibre-blended polyester ring-spun yarns and modified yarns is assessed. Effects of various parameters such as level of extension, retraction, fineness of polyester fibre, proportion of PVA fibre and twist multiplier on inverse relaxation behaviour of the both parent and modified yarns are investigated by employing Box–Behnken design of experiments and response surface methodology.
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Schedule a callMore From: Journal of The Institution of Engineers (India): Series E
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