Patent ID: 7070551
Filing Date: 2006-07-04
Classification: B32B,F16C,Y10T

Abstract:
1. Impression roller for a laminating machine for producing a packaging material in the form of a web of the type which comprises a carcass layer of paper or carton, and which carcass layer exhibits through holes, openings or slits, which carcass layer exhibits, on one of its sides, a barrier layer, a plastic lining which is arranged outside the barrier layer and which comprises one or more thermoplastic materials, and a film comprised of laminant thermoplast and which is arranged between the carcass layer and the barrier layer, with the said impression roller comprising a metal core exhibiting a circular-cylindrical jacket surface, which jacket surface is faced with an inner facing layer of an elastic material, exhibiting a first hardness and a first thickness, wherein an outer facing layer of an elastic material, exhibiting a second hardness and a second thickness, with the said first hardness being greater than the said second hardness and with the said first thickness being greater than the second thickness, is arranged on the outside of the said inner facing layer, said second thickness constituting 5–25% of the said first thickness plus the said second thickness, and wherein the first hardness is 60–99 Shore A and the second hardness is 50–80 Shore A.