Multilayer system: the addition of a plastic movie was the initial step to produce brick containers impermeable to liquids and warmth-sealable. Within the nineteen sixties, an aluminum foil began to be additional into the cardboard container to make sure greater safety and lengthen the shelf life of the packaged merchandise. https://waterintetrapak.fitness.blog/2025/05/05/the-rise-of-gable-top-packaging-in-modern-beverage-and-dairy-industries/