Value document comprising a security element
AssigneeLeonhard Kurz Stiftung & Co. KG
InventorsHeinrich Wild, Ludwig Brehm
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Abstract
The invention relates to a document of value, in particular a credit card, identity card or ticket, and to a transfer film for the production of a document of value. The latter has on one of its surfaces a security element (2), which has a magnetic layer (25) for storing machine-readable information and a reflective, non-magnetizable metal layer (23). The metal layer is arranged above the magnetic layer (25) in relation to the surface of the document of value. The metal layer and the magnetic layer overlap, at least in some regions. The region of the metal layer (23) that overlaps the magnetic layer (25) is subdivided into at least two regions (231) isolated electrically from one another.
Claims26
A document of value, which on one of its surfaces has a security element, wherein the security element has a magnetic layer for storing machine-readable information and no more than one reflective, non-magnetizable metal layer, the single metal layer being arranged above the magnetic layer in relation to the surface of the document of value, the metal layer and the magnetic layer overlapping, at least in some regions, and the region of the metal layer that overlaps the magnetic layer being subdivided into at least two regions isolated electrically from one another,
- wherein the region of the metal layer that overlaps the magnetic layer has a large number of island-like metallic regions, which are in each case separated from one another by metal-free regions, and
- wherein the island-like metallic regions of the metal layer each have an area of less than 100 mm2, and
- wherein the ratio of the total area of the island-like metallic regions to the area of the metal-free regions separating these regions in each case is greater than 6.
A document of value, which on one of its surfaces has a security element, wherein the security element has a magnetic layer for storing machine-readable information and no more than one reflective, non-magnetizable metal layer, the single metal layer being arranged above the magnetic layer in relation to the surface of the document of value, the metal layer and the magnetic layer overlapping, at least in some regions, and the region of the metal layer that overlaps the magnetic layer being subdivided into at least two regions isolated electrically from one another,
- wherein the region of the metal layer that overlaps the magnetic layer has a large number of island-like metallic regions, which are in each case separated from one another by metal-free regions, and
- wherein the island-like metallic regions are arranged in a line grid or surface grid with a grid width D, the island-like metallic regions in each case being arranged at a distance B from one another and the ratio of the grid width D to the distance B being chosen in the range from 5 to 200.
Dependencies are inferred from the claim text.