Time-Dependence of Stop Marks in Warp-Knitted Fabrics

Stop marks are one of the most frequently occurring errors in warp-knitted fabrics. They become visible in a fabric each time a warp-knitting machine stops and restarts. Nevertheless, investigations of such stop marks are rarely found in scientific literature. Here, we report on time-dependent inve...

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Bibliographic Details
Main Authors: Christian Hellert, Michael Kieren, Andrea Ehrmann
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2022-03-01
Series:Tekstilec
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Online Access:https://journals.uni-lj.si/tekstilec/article/view/11947
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Summary:Stop marks are one of the most frequently occurring errors in warp-knitted fabrics. They become visible in a fabric each time a warp-knitting machine stops and restarts. Nevertheless, investigations of such stop marks are rarely found in scientific literature. Here, we report on time-dependent investigations of stop marks in warp-knitted fabrics. Microscopic examination of stop marks after stopping times ranging between 1 s and 7 weeks revealed a superposition of the common stop mark due to imperfectly matching rotational speeds of the warp beam and main shaft, and an additional effect due to relaxation in the machine.
ISSN:0351-3386
2350-3696