Multilayer Program: the addition of the plastic movie was the initial step to create brick containers impermeable to liquids and heat-sealable. While in the sixties, an aluminum foil began to be included towards the cardboard container to be sure better protection and lengthen the shelf life of the packaged merchandise. https://gabletopmanufacturers.blogspot.com/2025/09/gable-carton-classic-design-modern-eco.html