Multilayer method: the addition of a plastic film was the first step to produce brick containers impermeable to liquids and heat-sealable. While in the sixties, an aluminum foil began to be extra to your cardboard container to ensure far better safety and lengthen the shelf life of the packaged item. https://mineralwaterincarton.food.blog/2025/09/24/white-labeling-of-water-bottles-branding-meets-sustainability/