Gravure process for printing adjacent color surfaces with various color coating thicknesses
AssigneeGiesecke & Devrient GmbH
InventorsKarlheinz Mayer, Roger Adamczyk, Eduard Wisjak, Peter Franz
Life of this patent
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Abstract
The invention concerns a data medium with a printed image created by the intaglio printing process. The printed image has at least one first ink area with a first ink layer thickness and at least one second ink area with a second ink layer thickness adjacent to the first ink area, such that the ink layer thicknesses are different. The first and second ink areas are separated by a sharp border line invisible on examination with the naked eye, and the ink layer thickness of both ink areas passes through a minimum in the region of the border line.
Claims9
A data medium comprising a printed image produced by the intaglio printing process, said image comprising at least one first ink area with a first ink layer thickness and at least one second ink area with a second ink thickness adjacent to the first ink area, wherein the ink layer thicknesses are different, the first and second ink areas are directly adjacent to each other and are separated from each other by an acute and discrete border line not visible to the naked eye, and that the ink layer thickness of both ink areas passes through a minimum in the region of the border line such that said first and second ink areas do not intermingle with one another.
A data medium comprising:
- a printed image disposed on a first side of the data medium, and produced by the intaglio printing process, said image comprising at least one first ink area with a first ink layer thickness and at least one second ink area with a second ink thickness adjacent to the first ink area;
- a plurality of depressions defined on a second side of the data medium, each depression generally corresponding to one of the first and second ink areas;
- wherein the ink layer thicknesses are different, the first and second ink areas are directly adjacent to each other and are separated from each other by an acute and discrete border line not visible to the naked eye, and that the ink layer thickness of both ink areas passes through a minimum in the region of the border line such that said first and second ink areas do not intermingle with one another.
Dependencies are inferred from the claim text.