Multilayer system: the addition of the plastic film was step one to produce brick containers impermeable to liquids and heat-sealable. From the nineteen sixties, an aluminum foil started to be added on the cardboard container to make certain greater protection and prolong the shelf life of the packaged product or https://wateringabletop.home.blog/2024/10/29/the-rise-of-gable-top-packaging-in-sustainable-solutions/