User blogs

According to my understanding, the Food and Drug Administration (FDA) considers the addition of an aluminium foil containers layer to laminate materials to be a functional barrier. What is your opinion on whether or not the aluminium foil supplier layer should have a specific minimum thickness in order to be considered a functional barrier to printing ink? Alternatively, does the thickness of the  layer make a difference if the aluminum foil layer is laminated with PET layers on both sides of the  la... more