Packaging material, for foodstuffs, has a polyethylene barrier layer between layers of compressed cardboard and absorbent paper with a corrugated surface

摘要

The compound packaging material (1), especially for foodstuffs, is in three layers. A compressed cardboard layer (2) is covered by a layer of white polyethylene (4) and a layer of absorbent paper (3). The polyethylene layer acts as a humidity barrier, together with the adhesive to bond the layers together. The absorbent layer is a dried paper, with a corrugated surface (5).