PU Leather Shank Button for Underwear — Specification, Uses and Sourcing Notes
PU Leather Shank Button for Underwear: Specification, Uses and Sourcing Notes
PU Leather Shank Button is the version buyers specify for underwear 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
PU Leather gives shank button its drape and hand feel. In practice that means the trim behaves differently in cutting, in finishing and in wear: plating and coating adhesion must be tested on the actual base. 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 | Shank Button |
|---|---|
| Base material | PU Leather |
| Standard size | 10# Gauge |
| Common finishes | Epoxy Doming, Anodised Finish, Laser Engraved Finish |
| Processes | Injection Moulding, Singeing, Anti-Pilling Finish |
| Typical application | Underwear |
| Related applications | Shirts, Jackets, Down Jackets, Dresses |
| Test standard | Bluesign |
| Usual packing | 100 pieces per polybag, 5000 per carton |
Properties that matter in buying
- Dimensional stability — 1% allowance is built into the spec before cutting.
- Colour fastness — tested to Bluesign on the actual base material, not on a substitute.
- Mechanical performance — abrasion resistance after 20 cycles or washes.
- Compliance — Bluesign documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Lingerie
- Bridal Gowns
- Shirts
- Activewear
- Trousers
- Backpacks
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 silicone gripper tape, pearl button, air mesh fabric, leather hang tag, and the processes most often paired with shank button include piece dyeing, metal stamping, pu coating.
Send the reference sample or tech pack and we will come back with a costed specification, a sampling timetable and the compliance documents your market requires.
