Multilayer procedure: the addition of a plastic film was step one to produce brick containers impermeable to liquids and heat-sealable. In the nineteen sixties, an aluminum foil began to be included to the cardboard container to be sure greater safety and increase the shelf lifetime of the packaged product. This https://dairygabletoppackaging.finance.blog/2025/04/09/how-gable-top-packaging-is-shaping-the-future-of-consumer-goods/