20.500.12556/RUL-184607 Mechanical performance and sustainability of plied silk-waste yarns for outerwear The mechanical performance and sustainability of plied yarns produced from degummed silk waste were evaluated, with particular attention to their suitability for outerwear applications. Among the three silk waste types examined, Sample 1 (cocoon unwinding waste) possessed the finest and most uniform fibers (diameter 11.5–12 μm, fineness less than 1 dtex), establishing it as the preferred material for yarn production. Mechanical testing of machine-spun single, two-ply, and four-ply yarns indicated that two-ply yarns achieved a breaking stress approximately 40% higher than that of four-ply yarns. Additionally, two-ply yarns exhibited a higher modulus of elasticity and lower extension. The optimal yarn structure was identified as a two-ply yarn (component count: 34.2 tex; 638 turns per meter), which demonstrated the highest elastic recovery under cyclic loading up to 5% extension. Thermal shrinkage tests revealed that higher twist levels produced greater shrinkage, which is significant for post-processing stability. Scanning electron microscopy confirmed the smoothness and uniformity of Sample 1 fibers, correlating with the enhanced mechanical properties observed in the yarns. In summary, two-ply silk-waste yarns derived from cocoon unwinding waste represent an effective and sustainable alternative for high-performance outerwear. Further research is recommended to assess the scalability of this process and the potential of other silk waste types for similar applications. silk waste ring yarn 100% silk twisted yarn mechanical properties odpadki svile obročna preja 100-odstotna svilena sukana preja mehanske lastnosti true false true Angleški jezik Slovenski jezik Članek v reviji 2026-07-11 04:13:38 2026-07-13 07:36:26 2026-07-14 04:03:08 0000-00-00 00:00:00 2026 0 0 Str. 1-14 Vol. 56 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677 1530-8057 10.1177/152808372614671 284418819 gorjanc-2026-mechanical-performance-and-sustainability-of-plied-silk-waste-yarns-for-outerwear.pdf gorjanc-2026-mechanical-performance-and-sustainability-of-plied-silk-waste-yarns-for-outerwear.pdf 1 094DBF7E9E83519D4F93D96F569F067B 6f513bfa492035bd3aa888e29f97c72f917e95851373e76f783e48fcf7a53183 9073799e-7e7c-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237640 https://journals.sagepub.com/doi/10.1177/15280837261467134#con 1 fc6a1255-7ccd-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237549 Naravoslovnotehniška fakulteta 0 0 0