Multilayer Procedure: the addition of a plastic film was step one for making brick containers impermeable to liquids and warmth-sealable. From the sixties, an aluminum foil began to be extra on the cardboard container to be certain improved security and increase the shelf lifetime of the packaged product or service. https://sustainablewaterpackaging.car.blog/2024/10/05/revolutionizing-packaging-the-role-of-water-in-gable-top-cartons/