Home – FAQ

Frequently Asked Questions

These questions address the most frequently asked topics from our customers. We hope these answers will help enhance your sewing experience!
Please feel free to suggest any additional tips you’d like us to cover on this page.

Henan Deman Packing Co., Ltd., a manufacturer based in Xinxiang, Henan, China, has a history of nearly 30 years. Starting as a family-run small business producing polyester thread, we have grown into a large-scale production-oriented enterprise with approximately 800 employees. Unlike trading companies, Deman offers products directly from our own factory, ensuring guaranteed quality.

 

Equipped with a full set of production lines, we welcome factory visits. To schedule an appointment, please email us at contact@demanpack.com.

Our polyester sewing threads are primarily designed for use in dyeing factories, thread companies, and the garment industry. Meanwhile, Deman’s bag closing threads utilize the same polyester staple fiber but serve a different sector—packaging. Specifically, they are suitable for sealing heavy-duty multi-wall paper bags, Raschel bags, woven polypropylene (BOPP) bags, and other containers holding goods like seeds, large-animal feed, charcoal, rice, cement, fruits, etc.

 

Visually, sewing threads are thinner, while bag closing threads are thicker and stronger.

 

Equipped with a full set of production lines, we welcome factory visits. To schedule an appointment, please email us at contact@demanpack.com.

This is a practical question, isn’t it? For consumables, all business operators seek products that enhance efficiency and cut costs. We’re here to guide you.

Now, let’s introduce our main sewing thread products: Ne10/2, Ne10/3, Ne10/4, Ne12/4, Ne12/5, Ne20/6, Ne20/7, Ne20/8, Ne20/2, Ne20/3, Ne30/2, Ne40/2, etc. As a general rule, the finer the yarn, the lower its strength; conversely, thicker threads have higher breaking force.
For sewing lightweight bags, choose finer threads (which offer longer length). For heavy-duty applications like cement or rice bags, opt for thicker threads to prevent breakage.
Additionally, always match your sewing thread with the appropriate needle and sewing machine.
For more details or personalized advice, please contact us. We’re happy to address all your questions.

DEMAN bag closing threads are compatible with most brand-sewing machines. Which machine brand do you use? Please let us know—Fischbein, Newlong, Union-Special, Yao-Han, JACK, etc. Simply provide the machine model, such as:

 

  • Fischbein: Empress 100, 101 (Tape), 200 (HS), 201 (HStape), Model F
  • Union Special: BC200 (UHS), BC-e 200, 80800, 2200, 3000, 4000, 5200
  • Newlong: DS11 (=Doboy D95), Ind. DS-9C (HS), DS-9A, DS2(II), DS6AC, DS-7C, NP-7A, NP-3(II), NP-8, GK26-1A
  • Siruba: AA6
  • GK9-2

 

Have you experienced thread breakage during high-speed sewing (but not at normal speeds)? Don’t worry—we use food-grade lubrication to address this issue.
For more details, contact our pre-sales team at contact@demanpack.com. Thank you!

100% Spun Polyester Yarn

Premium Quality level. Multiple models are available for selection.

Bag Sewing Thread

10% Higher

Breaking Strength than other suppliers

Premium

High Quality Level Thread

Packaging Solution

DEMAN Selected Products

Bag Closing Machinery

Packaging Materials