Iron Bullion Patch — Specification, Uses and Sourcing Notes
Iron Bullion Patch: Specification, Uses and Sourcing Notes
Iron Bullion Patch is the version buyers specify 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
Iron gives bullion patch its weight-to-strength ratio. 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 | Bullion Patch |
|---|---|
| Base material | Iron |
| Standard size | 25 mm Width |
| Common finishes | Mercerised Finish, Glossy Enamel Coating, Chrome Plating |
| Processes | Brushing, Mercerising, Rotary Printing |
| Typical applications | Skirts, Yoga Wear, Coats, Kidswear |
| Test standard | California Prop 65 |
| Usual packing | 200 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 California Prop 65 on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 10 cycles or washes.
- Compliance — California Prop 65 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Lingerie
- Boots
- Evening Wear
- Bras
- Yoga Wear
- Gloves
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 french terry fabric, fusible interlining, shell button, brocade fabric, and the processes most often paired with bullion patch include weaving, laser cutting, piece dyeing.
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.
