Multilayer process: the addition of a plastic movie was the first step to make brick containers impermeable to liquids and warmth-sealable. During the nineteen sixties, an aluminum foil began to be additional to the cardboard container to make sure much better security and increase the shelf life of the packaged https://wateringabletoppak.blogspot.com/2024/10/the-future-of-eco-friendly-packaging.html