Recyclable food packaging: quality control for nanocoatings
Across the EU, more than 300 billion items of packaging are not recycled every year because they consist of a mixture of different materials. Monomaterial packaging on the other hand is easy to recycle. However, it needs to be coated with ultra-thin barrier layers to protect delicate products just as well as compound materials do.
https://www.bio-pro.de/en/activities/biological-transformation/aktuelles/recyclingfaehige-lebensmittelverpackungen-qualitaetskontrolle-von-nanobeschichtungen