Plastic identification card having forgery protection with...

Details Plastic identification card having forgery protection with... Plastic identification card having forgery protection with...

G - Physics

07

F

283/25

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

Patent

CA 1211772

ABSTRACT This invention relates to a plastic identification card with forgery protection with respect to embossed information. There is a problem with existing credit cards in that the forgers can change the embossed information. This problem is overcome by providing in registration with the embossed information a layer of chemicals reactive under the pressure of a change in the embossed information to release a coloured dye.

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