Kba-notasys Sa

Koenig & Bauer-aktiengesellschaft

Alain Jufer

Johann Emil Eitel

Matthias Gygi

Alain Würsch

Gabriel Hermann

Johannes Georg Schaede

Volkmar Rolf Schwitzky

Daniel Chassot

Ralf Harald Sokol

Matthias Gygy

Fabienne Meichtry

Recess printing units are usable for printing on a substrate and using associated methods for operation. The recess printing units comprise an intaglio printing cylinder, which provides an image-forming pattern of recesses on its circumference; and an inking unit for applying ink to the pattern of recesses that are provided on the intaglio printing cylinder. The inking unit comprises a first inking unit cylinder which has, in a region of its lateral surface, recesses corresponding to the recesses in the intaglio printing cylinder and to which recesses ink can be supplied by an ink application device in the region of an application point lying on the circumference of the first inking unit cylinder. A second inking unit cylinder cooperates with the first inking unit cylinder and has, in a region of the lateral surface of the second inking unit cylinder, elevations corresponding to recesses in the intaglio printing cylinder or raised regions corresponding to regions of the image-forming pattern of recesses on the intaglio printing cylinder, which regions comprise recesses. The ink application device also comprises, on at least a downstream side of the application point, with respect to the operating direction of rotation of the inking unit cylinder comprising the recesses, a retaining device in the form of a doctor blade or an ink knife. The second inking unit cylinder comprises, on a lateral surface thereof, elevations corresponding to engraving on the intaglio printing cylinder.

Gravure printing units for printing onto substrates by a gravure printing method

There is described a device and method for magnetically transferring indicia to a coating composition, such as an ink or varnish, applied to at least a part of the surface of a substrate, the coating composition comprising at least one type of magnetic or magnetizable particles. The device comprises a body subjected to a magnetic field generated by appropriate electromagnetic means, which body carries determined indicia in the form of engravings on a surface of the body, which engravings influence orientation of field lines of the magnetic field. The body comprises at least one layer of material of high magnetic permeability in which the engravings are formed. In unengraved regions of the layer of material of high magnetic permeability, the field lines of the magnetic field extend substantially parallel to the surface of the body inside said layer of material of high magnetic permeability.

Device and method for magnetically transferring indicia to a coating composition applied to a substrate

There is described a cylinder body () for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate, which cylinder body () has a plurality of magnetic-field-generating devices () disposed on an outer circumference of the cylinder body (). The cylinder body () comprises a plurality of distinct annular supporting rings () distributed axially along a common shaft member (), each annular supporting ring () carrying a set of magnetic-field-generating devices () which are distributed circumferentially on an outer circumference of the annular supporting rings ().

Cylinder body for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate

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L'Isle, Switzerland

Alain Jufer