It’s no surprise that in the year since we looked at lidding film for food applications for Flexible Packaging’s readers, the industry has changed. We’re now seeing developments and trends in sustainability/recycling, peel and reseal functionality, and improved barrier for longer shelf life. There was also an unexpected development earlier this year: the U.S. government decided to impose tariffs on aluminum imports. We’ll begin this year’s overview there.
For decades, metallized (MET) films, especially MET OPP, have been preferred as a replacement for foil in flexible packaging applications. As the technology evolved, MET PET became an excellent choice for replacing foil in lidding applications. Today, as food manufacturers consider their lidding design, they are looking to MET PET more than ever to counter the increasing cost and limited availability of foil. Film is readily available, and the thickness of the vacuum-deposited metal is only a few hundred Angstroms, so the impact on the price of the film will be negligible compared with what is forecast for aluminum foil.