Patent ID: 7300694

Claim:
A multi-layer body in the form of a multi-layer film or in the form of a layer composite laminated from at least one overlay film and an inlet, comprising: a first laser-sensitive layer having a first laser-sensitive material, wherein the first laser-sensitive material has a laser-sensitive coloring agent which is bleachable by the action of laser radiation or which responds to the action of laser radiation with a color change; a second laser-sensitive layer having a second laser-sensitive material, wherein the second laser-sensitive material has a laser-sensitive coloring agent which is bleachable by the action of laser radiation or which responds to the action of laser radiation with a color change or the second laser-sensitive material has a doped material which is blackened by the action of laser radiation, and wherein the first and second laser-sensitive layers are arranged in a mutually overlapping relationship at least in region-wise manner; and an intermediate background layer arranged at least in a region-wise manner and disposed between the first and second laser-sensitive layers, which acts as a barrier layer which is not transparent for the laser radiation used for producing a laser-induced marking in the first and/or second laser-sensitive layer, wherein a complexly composed, laser-induced, multi-layer image is producible in the multi-layer body.