Data carrier having a liquid crystal security element

Details Data carrier having a liquid crystal security element Data carrier having a liquid crystal security element

B - Operations, Transporting

42

D

283/25, 73/54, 7

B42D 15/10 (2006.01) B42D 15/00 (2006.01) G07F 7/08 (2006.01)

Patent

CA 2032587

A data carrier such as an identity card or a paper of value protected against attempted forgery using color copiers and containing an optically variable security element made of a liquid crystal material. The security element. e.g. a safeguarding thread, has a plastics-like layer made of a liquid crystal polymer which shows a pronounced play of colors at room temperature. The plastics-like properties of liquid crystal polymers permit easy processing into a semifinished product or into the finished product, so that completely different types of security elements can be produced.

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