Multilayer program: the addition of the plastic film was the first step to help make brick containers impermeable to liquids and heat-sealable. Inside the 1960s, an aluminum foil began to be extra to the cardboard container to be certain superior safety and extend the shelf life of the packaged products. https://gabletopcartons.fashion.blog/2024/12/05/gabletop-pak-pioneering-the-future-of-sustainable-packaging-solutions/