Multilayer system: the addition of a plastic film was step one to produce brick containers impermeable to liquids and warmth-sealable. Inside the sixties, an aluminum foil started to be extra into the cardboard container to guarantee far better protection and extend the shelf lifetime of the packaged product or service. http://cartongabletop.car.blog/2025/08/26/gable-top-box-durable-functional-carton-packaging-innovation/