Patent ID: 6715411
Filing Date: 2004-04-06
Classification: B31F

Abstract:
A device for embossing and calendaring a foil comprising:a first roll and a second roll configured to pass the foil under pressure between them to produce at least one pattern on the foil in a sub-millimeter range of pitch and depth and to provide the surface of the foil with a smooth or glossy finish, the first roll and second roll having identical toothings, wherein in a stabilized condition a tooth of one of the first roll and the second roll is situated between four adjacent teeth of the other of the first roll and second roll, and wherein one of the first roll and the second roll is driven and the other of the first roll and the second roll is free-wheeled; and at least a third roll following the second roll, the third roll cooperating with one of the first roll and second roll to receive and pass the foil to re-emboss the foil with essentially the same pattern as produced from the first roll and second roll.