Printing – Intaglio – Rotary
Reexamination Certificate
2007-05-08
2007-05-08
Colilla, Daniel J. (Department: 2854)
Printing
Intaglio
Rotary
C101S150000, C101S154000, C101S170000, C101S395000
Reexamination Certificate
active
10500924
ABSTRACT:
A method for producing a security document having printed image1produced by steel intaglio printing and embossed microstructures2of an order of magnitude of less than 100 microns is carried out by one printing plate8on which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surface9are located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.
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Braun Eckhard
Plaschka Reinhard
Colilla Daniel J.
Giesecke & Devrient GmbH
Rothwell, Figg Ernst & Manbeck, PC
Williams Kevin D.
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