Multilayer system: the addition of the plastic movie was the initial step to make brick containers impermeable to liquids and heat-sealable. Within the 1960s, an aluminum foil began to be included on the cardboard container to make sure better safety and extend the shelf life of the packaged product. Gabletop https://wateringabletop.finance.blog/2025/02/26/customized-bottles-gable-top-paks-eco-smart-packaging-revolution/