2.7 Paper and board
Paper and board
Main component: Fibres, mainly from wood
Other components: Glue and impregnating agents, fillers, auxiliary materials
Product groups
- Tissue paper, hygienic paper products, household paper
- Special paper, technical paper
- Packaging paper, protective paper, transport paper
- Printing paper, publication paper, graphic paper
General properties
- Hygroscopic
- Spatially oriented arrangement of the fibres:
Machine direction: high strength Transverse direction: high extensibility - Two-sidedness:
Upper side: smooth, non-porous, high fine material fraction
Lower side: rough, porous, high coarse material fraction
