Heidelberger Druckmaschinen Ag

Wolfram Kolbe

Angela Kuhrt

Dieter Schaffrath

Frank Schaum

Martin Schmitt-Lewen

Ludo Kerz

Thomas Bechberger

Jörg Heuschkel

Michael Münster

Jörg Frey

Ralf Schmitt

Marina Kraft

Harrie G Knol

Gerald Hauptmann

Volker Moser

A method for producing a structured surface making contact with printing material, preferably a cylinder cover, includes producing a structured coating having microparticles on a substrate, preferably a stainless steel plate. The microparticles are encased antiadhesively and agglomerated by adsorption of nanoparticles, and the agglomerates being produced are fixed in a sol-gel matrix. A surface produced in this way has a structured coating on a substrate and the coating has microparticles. The coating has agglomerates fixed in a sol-gel matrix and including microparticles encased antiadhesively by adsorption of nanoparticles and preferably formed of silicon carbide. The surfaces advantageously have a self-repair function since, in the case of abrasion of structural elevations, the antiadhesive casings of the microparticles are exposed and the antiadhesive property of the coating is maintained.

Structured surface contacting printing material and printing material processing machine

Method for producing a structured surface contacting printing material, structured surface, machine and method for self-repair of structured surfaces

A surface, especially a galvanically molded transport cylinder sleeve, has a surface structure for contacting printing material, in particular sheets of paper. The surface structure includes first structural elevations spaced apart from each other by a minimum distance Aand having a height Band second structural elevations spaced apart from each other by a minimum distance Aand having a height Bwith B&#x3c;B. A ratio between the distances Aand Aranges between 10:1 and 1:1. The surface has support areas for supporting the printing material. The printing material is prevented from contacting a planar horizontal surface between the support areas of first, higher structural elevations due to second, lower structural elevations with support areas thereof that are formed between the first, higher structural elevations. A machine for processing printing material and a method for producing areas with a surface structure, are also provided.

Surface with a surface structure for contacting printing material, machine for processing material and method for producing areas with a surface structure

A method for producing a pseudo-stochastic master surface for producing a cover or jacket of a cylinder for contacting printing material, includes providing the master surface with a pseudo-stochastic distribution of microsurfaces. The master surface is produced on the basis of a digital master in a jacket preliminary stage and serves for a preferably galvanic production of a microstructured cover, in which structure elevations correlate with the microsurfaces. The pseudo-stochastic distribution helps to avoid disruptive discernible effects, for example the moir&#xe9; effect and helps to construct the microstructuring in a targeted manner. A master surface, a method for producing a cylinder cover, a cylinder cover, a machine for processing printing material, a method for producing printed products and a method for microstamping printed products, are also provided.

Method for producing a pseudo-stochastic master surface, master surface, method for producing a cylinder cover, cylinder cover, machine processing printing material, method for producing printed products and method for microstamping printing products

A method of operating a press that has a damping unit which contains a damping unit roller is performed during a printing interruption. During the printing interruption, the damping unit roller is supplied discontinuously with damping solution replenishment and, as a result, the damping unit roller is kept ready for a printing operation.

Method of operating a press and printing press

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Heidelberg, Germany

Wolfram Kolbe