Multilayer procedure: the addition of the plastic film was the initial step to produce brick containers impermeable to liquids and warmth-sealable. Inside the nineteen sixties, an aluminum foil started to be additional to your cardboard container to make certain greater defense and prolong the shelf lifetime of the packaged solution. https://waterinsustainablepak.news.blog/2025/04/09/how-gable-top-packaging-is-shaping-the-future-of-consumer-goods/