Layer structure with modified structure, and production thereof

Abstract

The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a) and a second surface a) which runs substantially parallel to the surface a), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b) facing towards the first layer (A) and another surface b) facing away from the first layer (A) and running substantially parallel to the surface b); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a) of the layer (A), on the face of the additional surface b) of the additional layer (B), between the two layers (A) and (B), or, in the event of additional layers (C), a combination of at least two of said options, and an image of the colorful or black part-engraving is located on the surface of the layer structure in the form of a nontransparent structural modification forming an additional outer surface of the layer structure and lying opposite the first surface a). The invention likewise relates to the production of the layer structure as well as to a security document containing the layer structure according to the invention.