Multilayer program: the addition of a plastic film was the first step to produce brick containers impermeable to liquids and heat-sealable. While in the nineteen sixties, an aluminum foil started to be extra to the cardboard container to be sure superior security and prolong the shelf lifetime of the packaged https://waterincarton.sport.blog/2025/08/26/water-in-sustainable-pak-eco-packaging-that-protects-the-planet/