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Sample boxes Corrugated board is a multi-layer paper composite made up of a liner, a fluted medium and a liner. These layers are bonded together using a starch-based adhesive. The resulting corrugated structure creates a very sturdy construction that protects products during shipping whilst being lightweight. Depending on the application, single-wall, double-wall or triple-wall grades are available.
What types of corrugated cardboard are there?
The properties of corrugated board depend heavily on the liners used (testliner or kraftliner) and the fluting paper. These differ in terms of, amongst other things, their raw material basis (primary and secondary fibres), strength and appearance (brown/white/green, coated/uncoated). Common base papers for corrugated board are:
- Kraftliner: high-quality linerboard (usually brown), defined as containing more than 50% kraft pulp; high strength, also available in white and coated.
- Testliner: Cover paper made from recycled fibres (often up to 100%), classified into strength grades 1–4 and also available in white and coated versions.
- Standard corrugated board: Corrugated paper made predominantly from recycled fibres.
- High-performance corrugated fabric: for increased stiffness, stability and performance.
The corrugated board produced in this way is available as single-flute, double-flute or triple-flute – depending on whether there is one, two or three flute layers between the face sheets (h = flute height / t = flute pitch):
Choosing the right corrugated board depends on a number of factors:
- Choosing the right corrugated board depends on a number of factors:
- Transport and storage conditions
- Specific requirements regarding stackability, puncture resistance or edge protection
- Desired appearance and printability
- Sustainability (whether secondary or primary fibre)
- Costs & Target Prices
