POLYMER LAYERED COMPOSITE FOR DOCUMENT OF VALUE Russian patent published in 2015 - IPC B42D25/351 

FIELD: textile, paper.

SUBSTANCE: invention aims at creating a document containing a transparent or semi-transparent reach-through window representing a layered polymer structure containing printing, optical, diffraction, holographic and other protective elements. A polymer layered composite for a document of value contains at least two coupled layers; at least one of the above layers contains an information sign visible through a free end of the second layer. Certain layers are made of a photopolymer materials and have different photosensitivities; some of the above photopolymer layers contains the information signs different from those appeared in the other layers. Each of the information signs become visible if arranged at a specific angle of view in transmitted or reflected light. Presented is the document of value containing protective elements presented by one or more described polymer layered composites mounted as inserts into marked segments of the document of value.

EFFECT: simplifying the document technology and reducing the production cost of end products.

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