Multilayer Packaging Continues to Make Its Mark

Multilayer packaging encompasses the use of multiple materials that intimately link to form a package structure. Most food packaging is multilayer. Layers are often plainly seen, such as in the laminated layers of polymers, paperboard, and aluminum in TetraPak classic brick-shaped cartons. Other layers, however, are less evident, such as the thin layers coextruded within polymer films and coatings applied onto paperboard cartons. Layered food packaging protects food in a specific manner, improve…