Bag Sewing Thread 

100% Polyester jumbo bag sewing thread

 

Made of 100% bright spun polyester staple fiber 1.2D*33mm

  • Premium quality thread for automatic bagging machine.
  • Knotless Threads without break
  • Safe as food contact materials
  • Cone Weight 1KG 2KG 3KG 4KG 5KG 6KG 7KG 8KG 9KG 10KG

  • Suitable for all type of bag closing machine.

About the Jumbo bag Sewing thread.

Designed for continuous, high-speed bulk-bag closure, our 100% Spun Polyester Jumbo Bag Closing Thread delivers unmatched productivity improvements by minimizing spool changes and keeping your machines running at peak throughput. Available in spool weights from 1 kg up to 10 kg, it’s perfectly tailored for automatic bag-closing systems such as NEWLONG, Fischbein, Union-Special, and other industry-leading models.

With jumbo-size 5 kg and 10 kg spools, operators spend significantly less time swapping cones. On a 2 000 stitches-per-minute closer, a 10 kg spool can run continuously for over 6 hours—dramatically reducing downtime in busy production lines.

Our Precision-spun polyester bag sewing thread ensure uniform diameter and twist along every meter of thread. This stability prevents tension fluctuations and thread breaks—even at speeds exceeding 2 200 stitches per minute on NEWLONG, Fischbein, or Union-Special machines—so you maintain steady bag-closing rates without interruption.

Low-elongation (15–20 %) spun polyester thread maintains tight stitch formation and secure knots on woven polypropylene, multi-wall paper, and coated fabrics. Once your industrial bag is sealed, you can trust that closure will hold through handling, lifting, and transport.

  • Up to 30 % Fewer Downtimes
    Our customers report a dramatic reduction in thread-related stoppages thanks to our jumbo size thread 8KG format and consistent thread quality.

  • Lower Operating Costs
    Fewer thread cone changes mean less labor, and the ability to run lighter Tex grades without sacrificing strength drives down material spend.

  • Simplified Maintenance
    Cleaner feeds and low-lint construction reduce the frequency of machine cleaning—so your maintenance crew can focus on preventive tasks rather than clearing thread jams.

Applications & Benefits

With large size of thread cones, for examples 5KG -10Kg , your second and third shifts can run seamlessly without interventions, reducing supervision needs and operator fatigue.

Larger thread spools and optional wax finish cut down on lint accumulation, extending the intervals between machine cleanings and minimizing wear on guides.

Uniform thread properties ensure every bag—whether first or thousandth—exits with the same stitch strength and appearance, protecting your brand’s reputation.

Available Size and Weight

Thread packaging : PE bags / PVC Shrink Bags

Outer packaging : Carton / PP bags / Pallets

  • Dow Corning silicone oil, lubricant level can be customized accordingly required.
  • Dry thread available.

FDA21CFR117. EC NO.10 /2011

ISO9001:2015  ISO14001:2015

“Our high-speed Newlong closers thrive on the large size of  Bag Closing Thread’s robust performance. With 5 kg and 8 kg spool options, boosting our throughput by 30%. The stable yarn tension and abrasion resistance ensure every bags packaging is sealed securely, even at 2,200 SPM. We’ve also seen a marked decrease in machine downtime—maintenance crews now clean guides only once per week instead of daily. This thread has become a cornerstone of our efficiency and quality programs.”

Man Wearing Hard HatOperations Manager, Industrial Grain Packaging Plant
Faster Production & Delivery
certified factory
International leader of  polyester bag sewing thread  Need a better packaging solution  – We will be your best option.
get a free quote