Spunbond for footwear, leather goods and interlinings

Where spunbond is used

In shoes, bags and garments, spunbond is mostly hidden. It is the layer that gives a part body, keeps it in shape or protects the layer above it.

• Footwear: linings and footwear components.
• Synthetic leather: the base fabric under the PU or PVC coating.
• Leather goods: linings and reinforcing layers in bags, wallets, belts and cases.
• Apparel interlinings: the base fabric of interlinings that give collars, cuffs, waistbands and fronts their shape.

What the material needs

The details differ from product to product, but buyers usually look for the same things:

• Even weight and a uniform look, because linings are often seen.
• Strength and tear resistance for stitching, shaping and daily wear.
• Stability through heat: fusing presses, laminating, coating and moulding.
• Good adhesion to adhesives, hot-melt coatings and PU or PVC layers.
• Clean edges when cut or ultrasonically sealed.

PET or nylon 6?

Nylon 6 is the tougher and more flexible of the two. It resists abrasion and tearing, stays strong at low weights and bonds well to adhesives and coatings, which suits interlinings and footwear components that flex in use. It absorbs a little moisture from the air, so condition samples before you test them.

PET is stiffer and more dimensionally stable, keeps its strength and size when heated, and takes up almost no moisture. It suits linings and reinforcing layers that go through hot laminating, coating or moulding, and parts that must keep their shape.

Both can be ultrasonically welded and cut with clean, non-fraying edges, and PET spunbond can also be thermoformed.

Bonding, weight and colour

Point-bonded spunbond is soft, flexible and more open, and drapes and moulds well; flat-bonded spunbond is thin, smooth and dense, with an even surface for printing, coating and lamination. Both polymers are made from 15 to 150 gsm, in white or any colour to your requirement, so a lining can be matched to the leather or fabric it sits behind.

Ordering

We supply jumbo rolls or rolls slit to your width, labelled and packed to your specification. The minimum order is one 20-foot container for each polymer. Samples are free, and we can send both polymers and both bondings so that you can test them on your own presses and machines. If you are replacing a material you use now, send us its data sheet or a sample.