Multilayer program: the addition of the plastic movie was step one to help make brick containers impermeable to liquids and heat-sealable. From the sixties, an aluminum foil began to be added towards the cardboard container to be certain much better security and prolong the shelf lifetime of the packaged merchandise. https://dairygabletoppackaging.finance.blog/2025/07/06/order-customized-carton-bottles-for-water-brands/