The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2024
Filed:
Aug. 02, 2022
Koenig & Bauer Ag, Würzburg, DE;
Steven Flemming, Berlin, DE;
KOENIG & BAUER AG, Würzburg, DE;
Abstract
The invention relates to a method for ink control in a printing press, wherein, during an ongoing printing process, an opaque ink () is printed onto a print substrate () in a first printing unit (), and subsequently a transparent printing ink () is printed onto the opaque ink () in a second printing unit (), at least one actual value of the optical density of the opaque ink () being ascertained by a first detection device () for this opaque ink () printed onto the print substrate (), a film thickness of this opaque ink () to be applied onto the print substrate () being set at the relevant printing unit () by a control unit () detecting the at least one actual value of the optical density of this opaque ink (), as a function of a previously ascertained value of the optical density of the surface of the unprinted print substrate (), in such a way that the at least one actual value of the optical density of this opaque ink () detected by the first detection device () corresponds to a target value set at this control unit () for this opaque ink (), taking a tolerance range defined in the control unit () for this opaque ink () into consideration; at least one actual value of the optical density of this printing ink () being ascertained by a second detection device () for the printing ink () printed onto the previously printed opaque ink (); and a film thickness of this printing ink () to be applied onto the opaque ink () being set at the printing unit () printing this printing ink () by the control unit () which also detects the at least one actual value of the optical density of this printing ink (), as a function of the film thickness of the opaque ink () previously applied to the print substrate () or as a function of the actual value of the optical density of this opaque ink (), in such a way that the at least one actual value of the optical density of this printing ink () detected by the second detection device () corresponds to a target value set at the control unit () for this printing ink (), taking a tolerance range defined in the control unit () for this printing ink () into consideration.