Glass Flannel Fabric for Underwear — Specification, Uses and Sourcing Notes
Glass Flannel Fabric for Underwear: Specification, Uses and Sourcing Notes
Glass Flannel Fabric 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
Glass gives flannel fabric its drape and hand feel. In practice that means the fabric 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 | Flannel Fabric |
|---|---|
| Base material | Glass |
| Standard size | 450 gsm |
| Common finishes | Matte Black Coating, Epoxy Doming, Black Nickel Finish |
| Processes | Warp Knitting, Laser Cutting, Metal Stamping |
| Typical application | Underwear |
| Related applications | Outdoor Tents, Bridal Gowns, Home Curtains, Blazers |
| Test standard | EN 71-3 |
| Usual packing | 500 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 EN 71-3 on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 20 cycles or washes.
- Compliance — EN 71-3 documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Coats
- Boots
- Caps
- Jeans
- Suits
- Luggage
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 hang tag, hook and eye, flame retardant fabric, merino wool fabric, and the processes most often paired with flannel fabric include brushing, screen printing, die casting.
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