Patent ID: 7198842
Filing Date: 2007-04-03
Classification: B42D,G09F,Y10S,Y10T

Abstract:
1. A method for the security protection of a page of a security document, wherein part of said page is perforated so as to form a holed area within the page; said method comprising: covering the holed area using a self-adhesive or heat-sealable information medium, so that the holed area is completely sandwiched between two facing adhesive areas of the information medium; and pressing the facing adhesive areas together so as to create an inseparable bond, if a pull force greater than the adhesive strength of the adhesive is not applied, wherein the self-adhesive or heat-sealable security information medium is designed to be applied to a page of a security document and to receive printing and/or writing, comprising an adhesive layer and at least one covering layer disposed on the adhesive layer, wherein the cohesive strength of the covering layer is less than the adhesive strength of the adhesive layer.