PTT FLEX Stretch Sewing Thread | Prevent Seam Splitting for Elastic Fabrics

PTT is the ideal high‑performance sewing thread for manufacturing garments constructed from stretch and elastic fabrics. Powered by innovative PTT (Polytrimethylene terephthalate) polymer technology, balancing professional sewing performance with sustainable textile production requirements.

Unlike conventional polyester or nylon sewing threads, PTT creates built‑in stretch reserve within every seam. When elastic fabrics extend during movement, the seams can stretch together with the textile material, maintaining garment comfort and preventing seam splitting, thread snapping or fabric gathering. It features superior maximum elongation and smooth sewability, performing stably on high‑speed industrial sewing machines with low breakage rate and neat stitch appearance.

Key Product Properties
• Optimized for all kinds of elastic textile materials, adding reliable stretch reserve to finished seams
• Creates fully highly‑elastic seams that move synchronously with stretch fabrics
• Exceptionally high elongation performance plus stable elastic recovery
• Outstanding sewability for industrial high‑speed sewing operations
• Soft hand‑feel, reduces seam hardening on close‑fit apparel

Main Applications
PTT elastic sewing thread fits multiple apparel categories requiring stretch‑capable seams:
• Men’s wear & Ladies’ wear (stretch casual garments, fitted fashion pieces)
• Sportswear & Outdoor active wear (yoga wear, fitness apparel, hiking stretch outfits)
• Underwear & Lingerie (intimates, shapewear, stretch undergarments)
• Industrial Workwear (stretch functional work clothing)

Available specification：200D｜300D｜450D