Multilayer system: the addition of the plastic film was step one to produce brick containers impermeable to liquids and heat-sealable. During the 1960s, an aluminum foil started to be additional into the cardboard container to be certain greater defense and lengthen the shelf lifetime of the packaged product. Using this https://waterinbox.movie.blog/2025/10/09/gable-top-milk-and-beverage-cartons-eco-smart-packaging-from-gable-top-pak/