Multilayer system: the addition of a plastic film was step one to generate brick containers impermeable to liquids and warmth-sealable. From the 1960s, an aluminum foil began to be additional into the cardboard container to be certain far better safety and lengthen the shelf life of the packaged product or https://ecofriendlypackagings.blogspot.com/2025/02/the-role-of-gable-top-cartons-in.html