Patent ID: 7223512
Filing Date: 2007-05-29
Classification: B32B,B41M,B42D,B44C,D21H,Y10S,Y10T

Abstract:
1. A multi-layer body comprising a substrate and a single-layer or multi-layer structure based on a transfer film having an adhesive layer or based on a laminating film having an adhesive layer, wherein the layer structure comprises at least one laser-sensitive layer containing a laser-sensitive material, wherein the laser-sensitive material comprises at least one coloring agent which is bleachable by the action of laser, wherein the at least one bleachable coloring agent is in the form of a pigment, and the laser-sensitive material is such that a color marking or a black marking can be produced within the at least one laser-sensitive layer by the action of laser in the at least one laser-sensitive layer, wherein the substrate comprises a paper material and the at least one laser-sensitive layer is applied as part of the transfer film or the laminating film to the substrate, wherein the adhesive layer forms an adhesive bond to the substrate.