Process and compositions for lithographic printing in...

Details Process and compositions for lithographic printing in... Process and compositions for lithographic printing in...

B - Operations, Transporting

41

M

117/6

B41M 3/14 (2006.01) B41M 3/00 (2006.01)

Patent

CA 1183734

ABSTRACT Printed materials such as tickets, lottery forms, cards and contest forms, bearing a hidden message which is revealable by the consumer scratching off a covering opaque layer, are prepared by lithographing a varnish layer over the hidden message, and then lithographing a hiding coat over the applied varnish layer. The varnish formulation and the hiding coat layer are both based upon compatible, preferably the same, film forming resin systems, and are deposited from a common solvent.

421252

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