Jari Vartiainen

There is a trend in packaging industry toward more sustainable packaging materials not interfering with the end-of-life or recovery schemes and helping to avoid plastic waste accumulation. Simultaneously, there is interest in bio-based materials, which could open up possibilities for various biopolymers. Single-layer biopolymer films rarely have a competitive edge against synthetic films, thus combining several individual layers or films into multilayer packaging materials becomes necessary. In this way, good properties of several materials can be combined and, for example, the overall barrier properties may be improved.