Multilayer System: the addition of the plastic film was step one to produce brick containers impermeable to liquids and warmth-sealable. While in the sixties, an aluminum foil started to be included for the cardboard container to make sure improved safety and increase the shelf life of the packaged product or https://waterincarton.blogspot.com/2025/08/the-role-that-gable-top-cartons-are.html