Multilayer procedure: the addition of a plastic movie was step one to make brick containers impermeable to liquids and heat-sealable. Within the nineteen sixties, an aluminum foil began to be additional to the cardboard container to ensure much better safety and increase the shelf life of the packaged products. The https://gabletoppak.school.blog/2024/10/05/revolutionizing-packaging-the-role-of-water-in-gable-top-cartons/