Multilayer program: the addition of a plastic film was the first step to produce brick containers impermeable to liquids and heat-sealable. While in the nineteen sixties, an aluminum foil began to be included into the cardboard container to guarantee improved protection and prolong the shelf lifetime of the packaged merchandise. https://gabletopcartons.health.blog/2025/01/09/gabletop-pak-durable-and-eco-friendly-packaging-for-every-need/