Import 40s/3 Spun Polyester Sewing Thread — Buy in Bulk from Supplier in China

This 40s/3 spun polyester sewing thread from Changshu Longli Thread Co. Ltd. is a three-ply construction with a diameter of 0.22mm, designed for industrial applications. The net weight per spool is 380g, with a gross weight of 400g, and it delivers 8500m of continuous thread. The product is specified for use in tape edge machines, particularly for mattress fabric and side edge material sewing, with the supplier also recommending 20s/3, 20s/2, or 210D/3 variants for comparable tasks.

Spun polyester threads like this are valued for their durability, resistance to shrinking, and colour fastness under industrial washing conditions. The 40s count refers to the yarn fineness, with higher numbers indicating finer threads; this 40s/3 configuration balances strength with smooth stitching in high-speed machinery. Standard industry practice for such threads includes a tensile strength range of 5.0 to 7.0 cN/tex, though the supplier does not specify this value for this listing.

Primary buyers include mattress manufacturers, upholstery workshops, and textile factories requiring consistent performance in heavy-duty sewing. The thread is typically supplied on cones for bulk use, and buyers should confirm compatibility with their machine’s thread tension and needle size. Changshu Longli Thread Co. Ltd. positions this as a reliable option for producers needing long, uninterrupted thread lengths for automated processes.

Changshu Longli Thread Co. Ltd. is based in Yushan Town, Changshu, Jiangsu Province, China. The company specialises in sewing threads for industrial and domestic applications, with a focus on polyester and spun variants. Its address at No. 18 Xiaokang Road places it within a textile manufacturing hub, aligning with its product offerings.

The supplier provides minimal public signals, with a harbor trust tier and no recorded response rate or average response time. This suggests a focus on direct trade relationships rather than platform-based engagement. The description confirms its expertise in thread specifications for machinery like tape edge equipment, but does not claim certifications or additional services beyond the product itself.