Multilayer program: the addition of a plastic film was step one for making brick containers impermeable to liquids and warmth-sealable. Within the nineteen sixties, an aluminum foil began to be included towards the cardboard container to make certain much better security and increase the shelf lifetime of the packaged solution. https://wateringabletoppak.art.blog/2025/04/09/revolutionizing-product-packaging-with-gable-top-containers/