Förfarande och system för tillverkning av förpackningsmaterial samt förpackningsmaterial och förpackning

摘要

The invention relates to packaging material that contains base paper that comprises cellulose-containing natural fibres and a first coating (3) comprising at least one platy pigment and binding agent, and a second coating (6) comprising at least one biopolymer, the packaging material being heat sealable and having a water vapour transmission rate of 1 to 30 g/m2/day. Furthermore, the invention relates to a method and a system for manufacturing packaging material, the use of the packaging material, as well as a package.