Multilayer method: the addition of the plastic movie was the initial step to produce brick containers impermeable to liquids and heat-sealable. Inside the 1960s, an aluminum foil began to be extra on the cardboard container to guarantee better protection and prolong the shelf lifetime of the packaged solution. Consequence metrics https://dairycartonsustainability.blogspot.com/2025/06/greener-today-sustainable-carton.html