Why Henan Deman Packing’s 100% Bright Polyester Bag-Closing Thread Delivers Unbeatable Value
At Henan Deman Packing Co., Ltd., we understand that in today’s fast-paced packaging industry, every cent counts—and so does every stitch. That’s why our 100% bright polyester (PET) bag-closing thread is engineered not just to meet, but to exceed, the demanding needs of modern manufacturers. Here’s why choosing Deman’s premium thread is the smartest investment you can make.
Superior Fiber Luster and Consistency
We source 100% bright polyester staple fiber, which offers a higher degree of crystallinity and uniformity compared to the semi-dull fibers commonly used by others. That translates to:Brighter appearance—enhancing the visual quality of sealed bags.
Tighter molecular structure—yielding consistently smooth surfaces and fewer weak spots.
Higher Tensile Strength
At equivalent thread thickness, Deman’s bright-fiber thread registers approximately 10% greater breaking strength than the market average. This means fewer thread breaks on high-speed machines and less downtime for your production line.
ISO 9001:2015–Certified Process
From raw-material inspection to final spooling, every step is governed by our ISO-certified quality management system.100% In-Line Testing
Tensile‐strength checks on every bobbin
Diameter and twist uniformity measurements
Visual inspection for color consistency and absence of neps or fluffs
Traceability
Batch numbers and detailed test reports accompany every shipment, ensuring you always know exactly what you received—and why it will perform.
100% In Line Testing
ISO 9001:2015
EU Regulation No. 10/2011 Compliance
Our thread has been tested and approved for indirect food contact under the European Union’s stringent “Plastics in Food Contact” framework.FDA CFR Title 21 Conformity
Meets U.S. Food and Drug Administration guidelines for materials in contact with food.Non-Toxic, Non-Migratory
Our polyester formulation passes migration tests, ensuring no harmful substances transfer to your packaged goods—ideal for food-grade bag closures in grains, powders, and granular foods.
Deman’s thread is perfectly tuned for the world’s leading bag-closing machines:
FISCHBEIN (e.g., Model F100)
NEWLONG (e.g., Model Ds-9)
UNION SPECIAL
YAO-HAN,WAIG and more
With precise control over twist, lubrication, and diameter, you’ll experience smooth feeding, minimal tension spikes, and virtually no jams—even at line speeds exceeding 300 bags per minute.
about
DEMAN PACKING
Leading manufacturer of premium industrial polyester thread. Main products : Polyester bag sewing thread . Polyester spun yarn.
