System for visually concealing print

Details System for visually concealing print System for visually concealing print

1991-06-25

1992-08-11

Rosenbaum, Mark

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing superposed layers

283904, 283901, B42D 1500

Patent

active

051373033

ABSTRACT:
A laminated card comprising a substrate and a card base. Carbon containing information such as a bar code is printed on the card base. A non-carbon coloring is applied to the substrate. A sealant is applied over the non-carbon coloring. The substrate is disposed on the card base with the sealant adjacent the card base and with the non-carbon coloring covering the carbon containing information for visually concealing the carbon containing information in this position, the substrate is secured to the card.

REFERENCES:
patent: 4511908 (1985-04-01), Small
patent: 4849618 (1989-07-01), Namikawa et al.
patent: 4863196 (1989-09-01), Ohnishi et al.
patent: 4897533 (1990-01-01), Lyszczarz

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