Cold / Plain lamination: This is very commonly used Machine, where the gum tray is present to hold the bonding agent (gum) dissolved into a liquid (water or a solvent or a solution), is applied to one of the webs. The adhesive coated web is laminated to the other under strong pressure which improves the bond strength of the laminate. It is commonly used to produce a Duplex sheets / paper-aluminum foil laminate that are widely used in flexible packaging.
