Multilayer program: the addition of a plastic movie was the first step for making brick containers impermeable to liquids and warmth-sealable. Inside the nineteen sixties, an aluminum foil began to be added into the cardboard container to be certain superior security and lengthen the shelf life of the packaged products. https://gabletopcartonsjuice.blogspot.com/2025/08/sustainable-liquid-packaging-smart.html