

Portable
Bag Sewing Thread
Made of 100% bright spun polyester staple fiber
1.2D*33mm
Premium quality thread for portable bag closer.
Knotless Threads without break
Safe as food contact materials
Cone Weight 150g 200g 220g 250g
Suitable for all type of bag closing machine.
About The Portable Bag Closer Thread.

Our 100% Spun Polyester Portable Bag Closer Thread is engineered specifically to meet the rigorous demands of on-site, handheld bag-closing operations. Crafted from premium, high-tenacity polyester staple fibers, this thread delivers outstanding strength, abrasion resistance, and consistent performance—ideal for portable bag-closing machines used in agriculture, feed mills, grain warehouses, construction sites, retail packaging, and anywhere you need a reliable, on-the-go sealing solution.
About The Portable Bag Closer Thread.
1 / 100% Spun Polyester Composition
Made entirely from tightly spun polyester staple fibers, our thread offers excellent tensile strength (ranging from 9 to 14 lb [40–60 N] depending on Tex rating) and low elongation (15–20 %), ensuring each stitch remains secure under vibration or movement. Because it is polyester, it resists mold, mildew, and most chemicals, maintaining integrity even in damp or dirty work environments.
2 / Optimized for Portable Bag Closing Machines
Whether you're using a handheld bag closer at a feed mill, farm, or construction site, this thread feeds smoothly through compact, battery-powered orpneumatic machines withoutsnagging or fraying. The slightly silicone oil waxed finish option reduces friction, allowing for continuous operation without frequent adjustments or thread jams.
3 / ExceptionalAbrasion & UV Resistance
During handheld sewing, the thread often rubs against coarse bag materials (woven polypropylene, burlap, or multi-wall paper). Our spun polyester is tested to withstand more than 30,000 Martindale abrasion cycles, meaning far fewer thread breaks compared to generic cotton or low-grade polyester threads. Additionally, it retains up to 80 % of its original strength after 6 months of direct sunlight exposure, making outdoor, year-round use reliable.
4 / ExceptionalAbrasion & UV Resistance
Pre-dyed in high-precision dye vats, each spool maintains vibrant, consistent color throughout its entire length—whether you select classic White, Black, Red, or any of our specialty tones (Blue, Green, Orange, and custom Pantone matches). The dyestuffs achieve Color Fastness ratings of Grade 4–5 to washing (ISO 105 B02) and Grade 4 to light exposure (ISO 105 B04), ensuring your bag closures remain crisp, professional, and easy to identify batch by batch.
5 / Tex/Length Range & Packaging Options
Available in Tex150 Tex180 Tex200 andTex250 -the most popular choices for portable bag closer machines-this thread accommodates bag weights from 10 kg up to 50 kg. Each spool contains 800 m-1000m of thread, wound on a light weight, open-end plastic cone that fits all major handheld bag closers(Union Specia, NEWLONG, FISCHBEIN, YAO-HAN and WAlG models). For high-volume requirements, higher than l,000 m cones are also available.
6 / Applications
Agriculture & Animal Feed, Construction &Industrial Materials, Food Processing & Specialty Retail,For small-batch producers of flour, sugar, salt, coffee beans, or bulk snacks sold at farmers markets,
