Multilayer Procedure: the addition of the plastic movie was the first step to create brick containers impermeable to liquids and warmth-sealable. Inside the nineteen sixties, an aluminum foil began to be additional on the cardboard container to guarantee much better safety and lengthen the shelf life of the packaged products. https://ecofriendlypackagingforwater.blogspot.com/2025/03/gable-top-carton-revolution-in.html