Gravure printing units for printing onto substrate, printing press with such a gravure printing unit, ink transfer forme and method for setting up an inking unit cylinder comprised by a gravure printing unit

• Main Authors: Chassot, Daniel, Schaede, Johannes, Dimitrijevic, Ana, Sokol, Ralf, Würsch, Alain
• Format: Patent
• Language: English
• Published: 22.11.2022
• Subjects: LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING MACHINES OR PRESSES; STAMPS; TRANSPORTING; TYPEWRITERS

A gravure printing unit is usable for printing onto substrate according to a gravure printing method. The gravure printing unit has a forme cylinder, which comprises, on its circumference, an image-forming pattern of recesses, and has an inking unit for inking the pattern of recesses provided on the forme cylinder. The inking unit comprises a first inking unit cylinder, which comprises recesses in a region of its outer cylindrical surface that correspond to the recesses on the forme cylinder, and which form a nip point downstream with a second inking unit cylinder, which comprises, on its circumference, ink-transferring elevations or raised areas. The recesses are formed on the outer cylindrical surface of an ink transfer forme sheath. The first inking unit comprises a cylinder body which is or which can be mounted rotatably in the inking unit and on which a circumferentially closed ink transfer forme sheath, that carries the recesses of the first inking unit cylinder on its outwardly facing surface, is or can be detachably arranged. A printing press has such a gravure inking unit. A setting up method, an ink transfer forme sheath, and a method for producing the same are also disclosed.