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US 6,354,700 B1Granted
Two-stage printing process and apparatus for radiant energy cured ink
AssigneeNCR Corporation
InventorJoseph D. Roth
Life of this patent
Estimating the term…
Abstract
A printing process and apparatus are described which employ radiation curable inks and provide high resolution print at high speeds by a two-stage process where the image is formed on an intermediate substrate and then transferred to the print medium. This allows both sides of the printed image to be exposed to radiant energy and also allows the printed image to be exposed to both heat and radiant energy before transfer to the print medium.
Claims12
A two-stage printing process which comprises:
- a) depositing ink in the form of an image on a surface of an intermediate substrate from an ink source, said ink being curable by radiant energy and the ink image has an upper surface and lower surface;
- b) exposing the upper surface of the ink image on the intermediate substrate to radiant energy to partially cure said ink image;
- and
- c) transferring the exposed ink image on the intermediate substrate to a receiving substrate such that the upper surface and lower surface of the ink image are reversed in forming a transferred ink image on the receiving substrate;
- and
- d) exposing the upper surface of the transferred ink image on the receiving substrate to radiant energy to further cure said transferred ink image.
3 more elements
Dependencies are inferred from the claim text.