Multilayer technique: the addition of the plastic film was step one to help make brick containers impermeable to liquids and warmth-sealable. Inside the sixties, an aluminum foil started to be extra on the cardboard container to guarantee improved defense and extend the shelf lifetime of the packaged product. Their light-weight https://dairycartonssustainability.blogspot.com/2025/10/dairy-and-beverage-packaging-reinvented.html