Multilayer Procedure: the addition of a plastic film was the initial step to generate brick containers impermeable to liquids and heat-sealable. In the 1960s, an aluminum foil started to be additional to the cardboard container to guarantee much better protection and extend the shelf lifetime of the packaged product or https://wateradvertisingfree.blogspot.com/2025/05/sustainable-soap-packaging-for-greener.html