Multilayer method: the addition of the plastic film was the first step to produce brick containers impermeable to liquids and heat-sealable. During the nineteen sixties, an aluminum foil began to be extra into the cardboard container to be certain better protection and increase the shelf lifetime of the packaged products. https://gabletopcontainers.travel.blog/2024/10/05/sustainable-packaging-gable-top-cartons-as-a-game-changer/