Patent ID: 8435365
Filing Date: 2013-05-07
Classification: B32B,Y10T

Abstract:
1. A method for laminating a substrate foil with at least a laminating foil, the method comprising the steps of: providing the substrate foil; providing the laminating foil; applying weakened portions in the laminating foil, the weakened portions extending in a direction transverse to a longitudinal direction of the laminating foil, said weakened portions being spaced at intervals along the longitudinal direction, and having a width substantially smaller than a length of said intervals; maintaining a tension to the laminating foil in the longitudinal direction, thereby stretching the laminating foil in the weakened portions resulting in a stretched laminating foil; attaching the stretched laminating foil to the substrate foil, wherein the stretched laminating foil and the substrate foil are allowed to move freely relatively to each other until attaching the stretched laminating foil to the substrate foil to form a laminated foil; aligning the laminating foil with the substrate foil by measuring a longitudinal position of the laminating foil relative to the substrate foil; using said measurement by controlling the tension in the laminating foil dependent on said measured longitudinal position of the laminating foil relative to the substrate foil; and transporting the laminated foil by friction between the laminated foil and a transport facility while