Rayon Design Crack =link=

A size 90/14 needle leaves a massive hole in delicate rayon. These holes are perforations. String several perforations together along a seam, and you have a perforated tear line—exactly where a crack will occur.

| Stage | Action | |-------|--------| | Yarn selection | Use higher twist multiplier (TM 3.5–4.0) for design-heavy rayons. | | Warping | Maintain uniform tension across all colored yarns; use compensating tension devices. | | Weaving | Reduce reed count by 5–10% for rayon; use slower machine speeds (under 450 ppm for air jet). | | Dyeing | Avoid jet machines for striped rayons; use soft-flow or winch dyeing with lower liquor turbulence. | | Finishing | Apply a wetting agent before tentering; reduce overfeed to less than 2%. | rayon design crack

In the textile and garment industry, a "rayon design crack" primarily refers to two distinct issues: a manufacturing defect known as "crack marks" that appears during the printing process, or the long-term degradation and cracking of surface prints on rayon garments. A size 90/14 needle leaves a massive hole in delicate rayon