Copper Overlocking Thread for Down Jackets — Specification, Uses and Sourcing Notes
Copper Overlocking Thread for Down Jackets: Specification, Uses and Sourcing Notes
Copper Overlocking Thread is the version buyers specify for down jackets when the base material is fixed by performance rather than by price. This entry sets out what the material actually changes, which specification to write into the tech pack, and where the cost sits — the three questions that decide whether the item passes bulk approval.
What it is
Copper gives overlocking thread its durability under wash and abrasion. In practice that means the trim behaves differently in cutting, in finishing and in wear: shrinkage allowance has to be built into the spec. Buyers who specify the material up front avoid the most common failure — an item that looks right on the sample card and behaves differently in bulk.
Typical specification
| Item | Overlocking Thread |
|---|---|
| Base material | Copper |
| Standard size | 5# Gauge |
| Common finishes | Anodised Finish, Glossy Enamel Coating, Sandblasted Finish |
| Processes | Heat Transfer Printing, Epoxy Coating, Flame Retardant Finishing |
| Typical application | Down Jackets |
| Related applications | Hats, Yoga Wear, Gloves, Outdoor Tents |
| Test standard | OEKO-TEX Standard 100 |
| Usual packing | 200 pieces per polybag, 2000 per carton |
Properties that matter in buying
- Dimensional stability — 2% allowance is built into the spec before cutting.
- Colour fastness — tested to OEKO-TEX Standard 100 on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 10 cycles or washes.
- Compliance — OEKO-TEX Standard 100 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Coats
- Hats
- Baby Clothing
- Jackets
- Swimwear
- Blazers
How to specify it
- Name the base material in the tech pack, not just the item.
- Fix the size and tolerance in writing before sampling starts.
- Approve a counter sample made from the actual bulk base material.
- Order the test report against the standard your market requires.
- Retain a golden sample at the factory and a second one with you.
Related reading
Related specifications on this site cover open-end zipper, ladder lock, corduroy fabric, collar canvas, and the processes most often paired with overlocking thread include digital printing, pu coating, screen printing.
If you are comparing suppliers, send us the spec they quoted against. We will quote the same spec and show you where the difference sits.
