Multilayer identity card usable as a printing block and a method

Details Multilayer identity card usable as a printing block and a method Multilayer identity card usable as a printing block and a method

1988-09-20

1991-04-09

Bell, Paul A.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283904, 283117, B42D 1500

Patent

active

050058720

ABSTRACT:
An identity card is provided with a character set usable as a printing block, whereby the "natural foamability" that laser action brings about in the plastic materials commonly used for identity cards, such as PVC and polycarbonate, is exploited to obtain a relief height sufficient for a clear impression of the characters. The standard total height of the embossed characters relative to the rest of the card surface is reached by an additional deformation of the card body in the embossed character area so as to form flat underlying the characters.

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patent: 4849618 (1989-07-01), Namikawa et al.

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