A method for cleaning a rotating surface of a printing press cylinder or a rotating surface of a printing press roller, or a rotating surface of a print form or a transfer form arranged on a printing press cylinder within a printing unit includes the steps of: applying a liquid, water-based washing agent, containing at least 60% water and the rest at least surfactants, onto the surface to be cleaned within the printing unit; dissolving contaminations from the surface to be cleaned within the printing unit with the help of the washing agent and a cleaning device; and removing the dissolved contaminations from the surface to be cleaned within the printing unit, at least with the help of the cleaning device.
B41F 35/06 - Cleaning arrangements or devices for offset cylinders
B41L 41/06 - Cleaning arrangements or devices for offset cylinders
B08B 1/00 - Cleaning by methods involving the use of tools
B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
C11D 11/00 - Special methods for preparing compositions containing mixtures of detergents
2.
Method and device for the markless control or regulation of a digital printing process
A method for checking intermediate, part or end products during the production process without using marks is disclosed. The print image of the intermediate, part or end product produced on a digital printing press is scanned at least after a predetermined production step in order to subsequently compare the scanned print image with stored product data. Based on the comparison, the check of the previous processing steps and/or the calculation of the subsequent control actions for the order allocated to the intermediate, part or end product and the control actions by the production device are carried out.
A folding roller for use in a folding device for folding a fold is disclosed. At the folding device a substrate to be folded is pushed into an inlet roller nip of folding rollers rotating in opposite directions by a folding knife for forming a fold. The folded-away substrate is transferred from the folding rollers to a belt line guided about the folding rollers and consisting of transport belts for the purpose of onward transporting the folded product. The folding roller in the regions in axial extension in which at least one transport belt at least partially wraps the folding roller includes at least one rubber-elastic insert.
A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.
A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.
A method for controlling a printing process is disclosed. The method includes printing a printing material by a printing unit on a basis of data of a prepress stage. A printed result on the printing material is compared with a desired value and a correction value is derived from the comparison. The data of the prepress stage is corrected with the correction value.
A method and device for processing printed products made of multiple paper sheets is disclosed. The paper sheets are moved in the direction of a leading open edge and the paper sheets are connected to each other in a detachable manner in the region of the edge.
A web press, in particular a variable format book web press, variable format newspaper web press, or variable format periodical web press, has printing units having printing devices or groups of printing devices for applying ink to a paper web. The printing devices or groups of printing devices are constructed without rotating impression cylinders and are designed to apply ink to the paper web in a noncontacting manner.
B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
B41J 13/24 - Strips for supporting or holding papers
B41L 47/46 - Printing mechanisms using line-contact members, e.g. rollers, cylinders
B41J 25/316 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface
B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
B41F 17/02 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing books or manifolding sets
B41F 11/00 - Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
B65H 35/04 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
B65H 35/02 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
B41F 23/04 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing by heat drying, by cooling, by applying powders
B41J 15/04 - Supporting, feeding, or guiding devicesMountings for web rolls or spindles
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
A printing unit of a printing press, such as a web press constructed as a periodical printing press, having at least one printing couple, wherein the printing couple or each printing couple comprises a form cylinder, a transfer cylinder, an inking unit, and preferably a dampening unit. A drive motor is associated with at least one printing couple, and drives the form cylinder or the transfer cylinder of a respective printing couple. In accordance with the invention, a flywheel mass is associated with at least one drive motor which drives the form cylinder or the transfer cylinder of the respective printing couple, where the flywheel mass is connected to the rotor of the respective drive motor in a torsionally rigid manner.
PRINTING MACHINES, OFFSET PRINTING MACHINES; PARTS AND COMPONENTS OF PRINTING MACHINES AND OFFSET PRINTING MACHINES, NAMELY INKERS, DAMPERS, DRYERS, INK DRYERS, INK CURING APPARATUS, PAPER FOLDING APPARATUS; PAPER CUTTING APPARATUS, PAPER PERFORATING APPARATUS, STAPLING APPARATUS, PAPER FEEDING APPARATUS, PAPER REMOVING APPARATUS; AND PROCESS CONTROL COMPUTERS AND COMPUTER PROGRAMS, ELECTRIC OR ELECTRONIC CONTROLS, SWITCHES, MONITORS, DISPLAYS, INDICATORS, DATA ENTRY AND OUTPUT UNITS ALL SOLD TOGETHER AS A UNIT WITH PRINTING MACHINERY, OR AS REPAIR, REPLACEMENT, OR UPGRADING MATERIAL FOR PRINTING MACHINERY
PRINTING MACHINES, OFFSET PRINTING MACHINES; PARTS AND COMPONENTS OF PRINTING MACHINES AND OFFSET PRINTING MACHINES, NAMELY INKERS, DAMPERS, DRYERS, INK DRYERS, INK CURING APPARATUS, PAPER FOLDING APPARATUS; PAPER CUTTING APPARATUS, PAPER PERFORATING APPARATUS, STAPLING APPARATUS, PAPER FEEDING APPARATUS, PAPER REMOVING APPARATUS; AND PROCESS CONTROL COMPUTERS AND COMPUTER PROGRAMS, ELECTRIC OR ELECTRONIC CONTROLS, SWITCHES, MONITORS, DISPLAYS, INDICATORS, DATA ENTRY AND OUTPUT UNITS ALL SOLD TOGETHER AS A UNIT WITH PRINTING MACHINERY, OR AS REPAIR, REPLACEMENT, OR UPGRADING MATERIAL FOR PRINTING MACHINERY
12.
METHOD FOR CONTROLLING OR REGULATING, RESPECTIVELY, A PRODUCTION PROCESS IN THE PRODUCTION OF PRINTED PRODUCTS
A method for controlling or regulating, respectively, a production process in the production of printed products of a web-shaped or sheet-shaped printing material (1) in a printing system, wherein the method has the following steps: printing a code (4a, 4b), in particular a matrix code, with production information included therein for the control or regulation, respectively, of the production process onto the printing material (1); detecting the code (4a, 4b) by means of a detection device (6); evaluating the production information included in the code (4a, 4b) by means of an evaluation unit; carrying out the control or regulating actions, respectively, on the basis of the determined production information by means of the printing system; wherein a code (4a, 4b), which includes production information relating to a plurality of different signatures, is printed onto at least one signature (2a, 2b, 2c), which is to be separated from the web-shaped printing material (1) by means of cross-cutting.
