Photocopying – Contact printing – Light boxes
Patent
1994-02-18
1995-05-09
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
355279, 355280, 156277, 430124, 430126, G03G 1520
Patent
active
054145023
ABSTRACT:
A novel two step process is disclosed for the manufacture of protected, distortion-free, full-color electrographic images for use on large format posters, billboards and the like. A novel electrographic element, which is used in the process, comprises a carrier layer; optionally, a protective layer; a conductive layer; a dielectric layer; and a substantially tack-free, adhesive layer which is activated at a pressure and a temperature which is above ambient pressure and temperature of the electrographic element. The novel electrographic imaging process comprises: A) producing a toned image layer on the surface of the electrographic element, so that the toned image layer is adhered to the surface of the adhesive layer; and B) pressure laminating the receptor substrate at an elevated temperature to the toned image layer to form the completed electrographic image. Optionally, the carrier layer is stripped from the conductive or protective layer which then serves to protect the electrographic image from abrasion and environmental contaminants. Alternatively, the carrier layer is conductive and, along with the conductive layer (if present), is stripped from the dielectric layer which then serves to protect the electrographic image from abrasion and environmental contaminants.
REFERENCES:
patent: 3567571 (1967-11-01), Martinovich
patent: 4007489 (1977-02-01), Helmberger et al.
patent: 4322467 (1982-03-01), Heimbach et al.
patent: 4555436 (1985-11-01), Geurtsen et al.
patent: 4569584 (1986-02-01), St. John et al.
patent: 4581266 (1986-04-01), Magnotta
patent: 4731542 (1988-03-01), Doggett
patent: 4875961 (1989-10-01), Oike et al.
patent: 4965242 (1990-10-01), DeBoer et al.
patent: 4983487 (1991-01-01), Gilreath
patent: 5102768 (1992-04-01), Light et al.
patent: 5108865 (1992-04-01), Zwaldo et al.
patent: 5250133 (1993-10-01), Kawamura et al.
patent: 5269865 (1993-12-01), Kushida et al.
patent: 5269866 (1993-12-01), Kushida et al.
patent: 5273808 (1993-12-01), Mano et al.
patent: 5280005 (1994-01-01), Nakajima et al.
patent: 5281573 (1994-01-01), Kawasaki et al.
patent: 5286521 (1994-02-01), Matsuda et al.
patent: 5286559 (1994-02-01), Kaneko et al.
patent: 5292710 (1994-03-01), Egashira et al.
patent: 5294591 (1994-03-01), Egashira et al.
patent: 5296444 (1994-03-01), Saiki et al.
Brault Donald A.
Cahill Douglas A.
Himmelwright Richard S.
Rexham Graphics Inc.
Smith Matthew S.
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