Improvement of Finished‑Product Processing Performance by Post‑Spinning Coating Modification of Elastomer Monofilament
Elastomer monofilament features inherent high resilience. Nevertheless, some as‑extruded elastomer monofilament suffers yarn sticking and improper surface friction coefficient during high‑speed weaving and hot‑press lamination, which lowers loom efficiency and fabric quality. Coating modification serves as an important method to optimize processing performance of elastomer monofilament.
Coating layer adjusts surface friction coefficient of Elastomer monofilament. Excessively high friction coefficient generates frictional heat between yarn and thread guides and causes sticking and breakage. Too‑low friction coefficient leads to yarn slippage inside thread guides, unstable tension and uneven fabric texture. Optimized coating formula keeps friction within proper scope for warp‑knitting, circular knitting and seamless fly‑weaving, reducing end‑breakage rate under high‑speed production.
Coating modification brings extra protection for Elastomer monofilament. For TPU‑based material, qualified coating layer blocks moisture and slows hydrolysis‑induced aging under humid environment, prolonging service life of shoe materials and luggage accessories. Anti‑sticking performance is also improved. Coated bobbins resist inter‑layer adhesion after long‑time storage and maintain smooth unwinding.
Coating parameters shall match melting point and elastic property of base material. Excessive coating temperature damages monofilament substrate and reduces elasticity. Insufficient temperature weakens coating adhesion, resulting in coating peeling and powder impurities during weaving. Universal coating settings cannot be copied; process adjustment shall be carried out for TPU, TPEE and POE respectively. Equipped with multiple coating production lines, Jiangsu Dixiang New Materials Technology Co., Ltd. provides customized coating service for Elastomer monofilament to balance substrate resilience and surface function.
Besides elasticity test during sampling, downstream purchasers shall carry out simulated weaving friction test to check coating fastness and unwinding performance. Bulk procurement can be arranged only after confirming compatibility between coated elastomer monofilament and local equipment.