Multilayer Process: the addition of a plastic movie was the first step to generate brick containers impermeable to liquids and heat-sealable. Within the sixties, an aluminum foil started to be added on the cardboard container to ensure better safety and extend the shelf life of the packaged products. This includes https://topcartons.family.blog/2025/07/06/where-to-buy-white-label-water-in-paper-pak/