Multilayer Technique: the addition of a plastic film was step one to create brick containers impermeable to liquids and warmth-sealable. During the 1960s, an aluminum foil began to be added on the cardboard container to make certain greater defense and extend the shelf lifetime of the packaged products. Outcome metrics https://gabletoppackaging.tech.blog/2025/02/07/gable-top-boxes-revolutionizing-sustainable-packaging/