Five-Ply Bag Closing Thread in 12S/5 Spun Polyester
12S/5 Polyester Industrial Bag Closing Thread
| Material: | 100% Spun polyester |
| Yarn Count: | 12S/5 |
| Color: | Raw white (customized colors available) |
| Packaging: | 250g-10kg/cone |
| MOQ: |
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◆ Lead Time: 25-35 days
◆ Shipping: Sea freight, Railway freight
◆ Payment: T/T, L/C ...
Product Details
Spun Polyester Bag Closing Thread
Made of spun polyester fiber, has high resistance to abrasion/corrosion/acid, mostly used for packing bag seam sewing for woven bag/paper bag/sacks, etc.
Count: 9S, 10S, 12S, 15S, 20S, 30S, 3-9ply
Packing: 1kg, 2kg, 4kg, 5kg, 10kg big cone, or small cone less than 250g
Features: High resistance to abrasion/excellent seam strength & appearance/chemical resistance/without knot/high productivity/economical
MH 12S/5 Spun Polyester Bag Closing Thread is a 100% spun polyester industrial sewing thread built from five plies twisted in the S direction at Ne 12 cotton count.
MH 12S/5 Spun Polyester Bag Closing Thread is produced in raw white as standard and dyed to customer colour references for line or grade identification. It is used to close woven polypropylene sacks, kraft paper sacks and multi-wall paper bags in grain, feed, fertiliser, sugar and cement packing, and runs on single-needle chain-stitch closing heads as well as inline closing stations mounted over a conveyor. Alternative cotton counts and ply combinations are spun and twisted to order for buyers standardising a thread range across several bag types.
Key Selling Points
- Balanced five-ply construction: The five-ply build of MH 12S/5 spun polyester bag closing thread adds real seam strength over four-ply threads while staying finer than six-ply yarns, so heavier sacks can be closed without increasing needle drag.
- Uniform S twist: Consistent S-direction twist keeps the plies of this bag closing thread closed as it feeds through the tensioner and needle, which reduces fraying, skipped stitches and thread breaks on continuous closing lines.
- Spun polyester durability: Spun polyester gives the thread high abrasion resistance and stability against moisture and mild acids, so closed seams survive stacking, hook handling and outdoor storage of filled bags.
- Low shrinkage and colour fastness: The thread is engineered for low shrinkage and colour-fast performance in industrial packaging, keeping seam tension and thread appearance stable from the packing line to the buyer's warehouse.
- Colour and private-label customisation: MH dyes the bag closing thread to customer colour references and applies private-label cone and carton marking, which lets packers colour-code grades or brand the thread for resale.
- Wholesale and OEM supply: MH spins, twists and winds this bag closing thread in-house for wholesale and OEM programmes, supporting repeat bulk supply to bag manufacturers and packaging exporters.
Thread Weight & Recommended Machine Models
| Thread Specification | Thread Weight | Machine Type | Recommended Models | Application |
|---|---|---|---|---|
| 20S/6, 20S/9 | 200g – 250g | Portable Bag Closer | GK9 Series, GK26-1A, NP-7A | On-site small-volume bag sealing, mobile use |
| 20S/6, 12S/4 | 500g – 1kg | Semi-industrial Stationary Machine | Fischbein F Series, Newlong NP-3X | Factory use, moderate sealing volume |
| 12S/4, 20S/6 | 1kg – 2kg | Industrial High-Speed Sewing Head | Fischbein Empress Series, Newlong DS-9C, Union Special 80800 | Continuous high-speed bag closing line |
| 20S/6, 20S/9 | 3kg – 4kg | Automatic Bag Closing System | Newlong DS-11, Fischbein PBC6000 Series | Fully automated packaging line |
Customization
- Thread color: Pantone-based or customer samples
- Private label & logo: Available on cone or outer box
- Cone type: Plastic or paper
- Packing: 1kg/cone, 10 cones/carton or as requested
- OEM & ODM: Welcome for bulk orders
Usage
This thread is specially developed for sealing large and heavy packaging bags used in agriculture, industry, and bulk transportation.
- Woven PP bags, kraft paper sacks, and multi-wall paper bags
- Used for packing: grain, cement, fertilizer, sand, feed, seed, charcoal, and chemicals
Suitable for use with heavy-duty industrial bag closing machines, including fixed-type and high-speed sewing heads.
Other Thread Products
We offer additional polyester thread options: corespun polyester sewing thread, high tenacity polyester sewing thread, cotton sewing thread, bag closing thread, recycled sewing thread, anti-UV sewing thread, waterproof sewing thread, fire-retardant sewing thread, High extension flex sewing thread, water soluble sewing thread, sewing thread sets.
