Why Do The Same Spandex Double-wrapped Yarns Produce Significantly Different Results On Different Equipment?

After purchasing spandex double-covered yarn, equipment compatibility often becomes a key variable affecting the quality of the finished product.

Uneven tension in the winding machine leads to inconsistent tightness of the covering layer, resulting in a decrease in elasticity recovery.

Traditional tensioners lack sufficient friction control over the spandex core yarn, easily causing yarn breakage or pilling. The lack of constant tension compensation during high-speed winding makes the yarn cross-section prone to deformation.

It is recommended to prioritize winding equipment with independent spindle position control, with each spindle equipped with a yarn tension sensor for real-time adjustment. For warp-knitted fabrics requiring high elasticity, consider adding an electronic anti-overlap device to avoid localized stress concentration caused by yarn cross-over.

The selection logic for supporting equipment should follow the principle of 'matching the main process first, then optimizing details'. For example, weft knitting yarns prioritize continuous yarn supply stability, while warp knitting yarns require a focus on solving tension fluctuation issues at high speeds.