Six-Ply 20S/6 Spun Polyester Bag Closing Thread Matched to Portable Bag Closer Machines

MH Sewing Thread Factory

• 150,000m²

  Plant Area

• 35,000 tons

  Year Production

• 1,000+

  Workers

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About Ningbo MH

MH specializes in garment accessories and fabrics, offering high-quality solutions for the textile and home décor industries. With advanced automated warehousing, MH ensures efficient supply chain management and provides comprehensive after-sales support, exclusively serving businesses, not individuals.

View More About MH Company →

• 1999

  Since

• $871Million

  Annual Sales (2025)

• 40+

  Branch Offices

• 600+

  Office Staffs

Product Details

Count: 10S/3, 10S/4, 12S/3, 12S/4, 12S/6, 20S/6, etc

Weight: 150-200g to 1kg 2kg 4kg 8kg 10kg, etc.

Package: It can be packed as 20g to 10kgs without knots, suitable for hand sewing bag machines and industry sewing bag machines, thus improving sewing efficiency.

Features: High resistance to abrasion/excellent seam strength appearance/chemical resistance/without knot/high productivity/economical

MH 20S/6 Spun Polyester Bag Closing Thread is a six-ply sewing thread made from 100% spun polyester and built to close filled sacks on portable bag closer machines.

MH 20S/6 Spun Polyester Bag Closing Thread stitches woven PP sacks, kraft paper sacks and multi-wall paper bags across grain, flour, animal feed, fertiliser and chemical packing lines. MH supplies the thread in natural white and raw white, and dyes it to a buyer's own colour reference when seam colour is used to separate product grades on the line.

Key Selling Points

• Portable closer compatibility: MH spun polyester bag closing thread is engineered around the tension range and looper geometry of portable bag closer machines, so on-site operators get consistent stitch formation without retiming the head.

• Spun fibre grip: The spun polyester surface of this bag closing thread behaves like cotton under the presser foot, holding the seam in place while resisting the abrasion, acids and chemicals found on packing floors.

• Seam integrity under load: High tenacity combined with low shrinkage keeps the bag closing seam tight and flat, so closures survive palletising, handling and long-haul transport without opening.

• Colour and label customisation: MH dyes this bag closing thread to customer colour references and offers private-label cone and carton marking for distributors building their own thread programmes.

• Reliable factory supply: As a Chinese thread manufacturer, MH runs bag closing thread as a standing production line, supporting repeat bulk supply and OEM programmes for packaging converters and bag closing machine dealers.

Thread Weight & Recommended Machine Models

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.