Multilayer process: the addition of the plastic movie was step one to produce brick containers impermeable to liquids and warmth-sealable. Inside the 1960s, an aluminum foil started to be included on the cardboard container to be sure improved safety and prolong the shelf life of the packaged products. Taking this https://waterinpaperbottle.school.blog/2025/05/05/innovative-aseptic-packaging-for-milk-with-gable-top-cartons/