Multilayer process: the addition of a plastic movie was the initial step to produce brick containers impermeable to liquids and warmth-sealable. From the nineteen sixties, an aluminum foil began to be extra for the cardboard container to ensure much better protection and prolong the shelf lifetime of the packaged merchandise. https://gabletopcartons.school.blog/2025/02/26/recyclable-oil-packaging-why-choose-gabletop-paks-sustainable-solutions/