Multilayer program: the addition of a plastic film was the first step for making brick containers impermeable to liquids and heat-sealable. Within the nineteen sixties, an aluminum foil began to be extra into the cardboard container to ensure improved protection and extend the shelf lifetime of the packaged product. This https://gabletoppak.politics.blog/2024/10/05/the-future-of-beverages-water-in-gable-top-cartons/