Glass Iron-On Patch for Workwear — Specification, Uses and Sourcing Notes
Glass Iron-On Patch for Workwear: Specification, Uses and Sourcing Notes
Glass Iron-On Patch is the version buyers specify for workwear 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
Glass gives iron-on patch its strength and surface character. 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 | Iron-On Patch |
|---|---|
| Base material | Glass |
| Standard size | 5# Gauge |
| Common finishes | Yarn-Dyed Finish, Powder Coating, Black Nickel Finish |
| Processes | Calendering, Stone Washing, Anodising |
| Typical application | Workwear |
| Related applications | Down Jackets, Luggage, Caps, Jackets |
| Test standard | GB 18401 |
| Usual packing | 500 pieces per polybag, 2000 per carton |
Properties that matter in buying
- Dimensional stability — 1% allowance is built into the spec before cutting.
- Colour fastness — tested to GB 18401 on the actual base material, not on a substitute.
- Mechanical performance — cycle life after 30 cycles or washes.
- Compliance — GB 18401 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Baby Clothing
- Upholstery
- Swimwear
- Sleepwear
- Sportswear
- Caps
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 mesh fabric, wooden button, sherpa fabric, rib knit fabric, and the processes most often paired with iron-on patch include ultrasonic welding, anti-pilling finish, laser cutting.
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.
