US 11,890,861 B2
Method of curing coatings in a printing machine using differently actuated gas discharge lamps, printing machine and method of using a gas-discharge lamp
Matthias Schloerholz, Plankstadt (DE); and Michael Kohlmann, Frankenthal (DE)
Assigned to Heidelberger Druckmaschinen AG, Heidelberg (DE)
Filed by HEIDELBERGER DRUCKMASCHINEN AG, Heidelberg (DE)
Filed on Mar. 15, 2022, as Appl. No. 17/695,216.
Claims priority of application No. 10 2021 106 453.8 (DE), filed on Mar. 17, 2021.
Prior Publication US 2022/0297450 A1, Sep. 22, 2022
Int. Cl. B41J 11/00 (2006.01)
CPC B41J 11/00218 (2021.01) 12 Claims
OG exemplary drawing
 
1. A method of curing radiation-curable coatings in a printing machine, the method comprising:
producing a printing substrate having a radiation-curable coating by:
i) pinning the radiation-curable coating by applying a first radiation at a first location in the printing machine, and
ii) completely curing the pinned radiation-curable coating by applying a second radiation at a location different than the first location in the printing machine;
using the same electrical radiation source or sources in a first electrical operating mode to apply the first radiation and in a second electrical operating mode to apply the second radiation; and
providing the radiation applied by the electrical radiation source or sources with different radiation spectra in the first electrical operating mode and in the second electrical operating mode.