Multilayer System: the addition of the plastic movie was the first step to produce brick containers impermeable to liquids and warmth-sealable. From the nineteen sixties, an aluminum foil began to be included on the cardboard container to make certain far better protection and prolong the shelf lifetime of the packaged https://share.evernote.com/note/77243b94-bfe7-4867-3548-dcce1c0c4cf2