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ID document structure with pattern coating providing variable security features

  • US 7,866,559 B2
  • Filed: 06/10/2008
  • Issued: 01/11/2011
  • Est. Priority Date: 12/28/2004
  • Status: Active Grant
First Claim
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1. A method of making an identification document comprising:

  • applying a first material representing first information on a core layer of the document, the first material at least partially overlapping the core layer;

    applying a second material representing second information at least partially adjacent to the first material;

    applying a laminate layer over the core layer, the laminate layer covering the first and second materials, wherein the first and second materials adhere differently to the laminate and core layers such that removal of the laminate layer from the core layer causes a separation of the first and second materials;

    wherein the second material represents the second information in a relief pattern having a varying surface height relative to a surface of the core such that the document has a tactile feel.

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