Multilayer system: the addition of a plastic movie was the initial step to generate brick containers impermeable to liquids and warmth-sealable. In the nineteen sixties, an aluminum foil began to be added to the cardboard container to be certain greater safety and prolong the shelf lifetime of the packaged merchandise. https://gabletopcontainers.food.blog/2025/10/09/gable-top-cartons-for-milk-water-and-beverages-recyclable-renewable-and-reliable/