Abstract: Disclosed is a contact-pressure adjusting method and a contact-pressure adjusting system, each of which automatically adjusts the contact pressure between two rotors, for a liquid application machine including: a first rotor to which liquid is supplied; a second rotor to which the liquid is supplied from the first rotor; and a contact-pressure adjusting unit for adjusting the contact pressure between the first rotor and the second rotor. By using a temperature measuring unit, measured is: the temperature of at least one of the surfaces of the first and second rotors; the temperature of at least one of the liquid on the surface of the first rotor and the liquid on the surface of the second rotor; or the temperature of at least one of the vicinity of the first rotor and the vicinity of the second rotor. The contact-pressure adjusting unit is adjusted in accordance with the measured temperature.

Abstract: An assembly in a printing unit of a rotary printing press includes at least one plate cylinder, three ink form rollers, two vibrator rollers and an ink separator roller. Both of the vibrator rollers are applied directly to the ink separation roller. One of the ink form rollers is applied to both one of the vibrator rollers and the plate cylinder. The secondary two ink form rollers are applied both to the other vibrator roller and to the plate cylinder. The plate cylinder is covered with several printing forms. An upper ink form roller is located such that a horizontal line that is tangent to the circumference of that upper ink form roller is positioned at a vertical decline of at least 50 mm from a horizontal line that is tangent to the circumference of the plate cylinder.

Abstract: A printing roller has an outer surface and is rotatable in a rotational sense about a roller axis. A liquid applicator has an upstream blade having an edge engageable with the roller surface and a downstream blade having an edge engageable with the roller surface downstream in the sense from the upstream-blade edge. The blades form a compartment fillable with a liquid to be applied to the roller outer surface. The upstream blade is shifted on rotation of the roller between an engaged position with the respective edge engaging the surface and a disengaged position with the respective edge spaced radially from the surface.

Abstract: A printing machine system includes a first printing machine which is configured as a newspaper printing machine and which has at least two first printing units that are structured as printing towers, each with a plurality of superimposed printing groups that are usable for multicolor printing. The first printing machine also includes a first folder structure which is arranged in a machine alignment of the at least two first printing units. A second printing machine has at least one second printing unit and a second folder structure. The first printing units and the at least one second printing unit are arranged in one row. The first printing units, which are configured as printing towers, differ from the at least one second printing unit in at least one of their effective printing length and a circumference of imaging printing group cylinders.

Abstract: An inking unit of a rotary printing press includes a film roller. The film roller has a structured outer surface that has a Shore D hardness ranging between 80 and 90 and a stochastic surface. The stochastic surface is incorporated into the outer surface of the film roller by peening.

Abstract: A roller of a printing machine includes a device for use in the generation of an axial oscillating movement of the rotating roller. The device includes a drive that is comprised of a pump which pressurizes a working fluid. The pump is arranged inside of the roller.

Abstract: A printing screen cleaning apparatus and a method for cleaning a printing screen by employing the cleaning apparatus which includes a cleaning head having a wiping member and a backup member for sucking the paste via a wiping member while sliding the wiping member on a lower surface of the printing screen. The backup member includes a suction port provided in a suction region of a backup surface of the backup member. The backup member also has a groove that extends parallel to the suction region and approximately perpendicular to the sliding direction of the wiping member. The groove partially releases the backup of the wiping member.

Abstract: A method of controlling parameters of an ink layer at a selected location in a printing unit of a printing machine, the printing machine including at least one ink source for producing the ink layer on a transport device, whereon metering variables for regulating the application of ink to the transport device are zonally settable, and further including the transport device for transferring the ink layer to the selected location.

Abstract: A bifurcated platen assembly is used to improve screen printing operations by providing parallel spaced apart platens instead of a single platen. The platens occupy the same space as a conventional platen but allows the simultaneous printing on two garment portions or two garments such that alignment problems are eliminated and the operator is able to increase through put production. The platen assembly is movable through a ninety degree arc to facilitate printing on different garments with appropriate screens.