Pads need to withstand various stresses during operation, and high-strength yarns are the foundation to cope with these stresses.

1. Pads woven from high-strength yarns with high tensile and deformation resistance are not easily stretched or deformed when subjected to machine longitudinal (warp) and transverse (weft) tensile forces. This ensures the dimensional stability of the padding on the production line, preventing inaccurate product dimensions or surface wrinkles caused by stretching. Low strength yarn padding is prone to "creep" (i.e. gradually elongating under sustained stress), leading to dimensional instability, affecting production processes, and even potentially causing production line downtime.

2. Anti tear and anti top burst ability pads are often subjected to sharp object hooks or local impacts during laying, winding, and use. High strength yarn can effectively prevent the expansion of cracks. When a small tear appears on the cushion, the high-strength yarn requires greater force to be pulled apart, making the tear less likely to expand and extending the service life of the cushion. Once a low strength yarn breaks, it will quickly tear under stress, causing extensive damage to the padding and forcing it to be replaced in advance.

3. Wear resistant pads will experience repeated friction with mechanical rollers, the product itself, and other pads during transportation. High strength yarn has tightly bonded fibers, which can better resist fiber wear and detachment caused by friction. This means that the surface of the cushion is less prone to pilling and pilling, and can maintain a smooth surface. Low strength yarns wear out quickly and the surface is prone to becoming rough.

4. Fatigue resistant industrial pads require repeated cycles of high-temperature vulcanization, cooling, winding, unwinding, and other processes. High strength yarns have better resistance to repeated bending and stress fatigue. Low strength yarns experience rapid attenuation of strength after multiple cycles, and may suddenly break, causing production interruptions and product scrap.