Multilayer process: the addition of the plastic film was the first step to make brick containers impermeable to liquids and warmth-sealable. Inside the sixties, an aluminum foil began to be included on the cardboard container to guarantee much better defense and extend the shelf lifetime of the packaged item. End https://topcartons.fitness.blog/2024/10/05/the-future-of-beverages-water-in-gable-top-cartons/