What are round cardboard tubes (composite cans) and how are they used in packaging?

Round cardboard tubes (also called composite cans, cylindrical canisters, or paperboard tubes) are rigid cylindrical packages manufactured by winding multiple plies of paperboard around a cylindrical mandrel.

### Construction & Components:

• Spiral-Wound vs Convolute: Multiple layers of recycled kraft board wound tightly with structural adhesives for high radial crush strength.


• Outer Label Wrap: Printed art paper with gloss, matte, soft-touch, or hot-foil finishes wrapped seamlessly around the perimeter.


• Closures: Rolled paperboard slip lids, embossed metal tin lids, natural cork stoppers, or eco-friendly FSC wooden caps.


• Internal Barrier Liners: Foil, wax, or PE liners can be added to make tubes moisture-resistant and food-safe for tea, coffee, and spices.

### Popular Applications:


• Whisky, gin, and premium wine bottles


• Loose leaf tea and artisanal roasted coffee beans


• Organic cosmetics (lip balm push-up tubes, deodorant sticks)


• Rolled posters, blueprints, and fine art prints


• Apparel items (t-shirts, socks, hats).