Abstract: The invention concerns a device for a roller body of a rotation roller with an outer hollow body that has a cylindrical shape and is built with an internal cavity, an inner body that has a cylindrical shape and is arranged in an assembly with the outer hollow body in the internal cavity of the outer hollow body, and a centring device that is used during installation of the assembly to centrally position the inner body in the internal cavity; a relevant material bridge in the opposing end sections of the assembly, whereby the relevant material bridge is formed by a filler, which is applied and cured in a space at the end section of the assembly between an inner surface of the outer hollow body and an outer surface of the inner body, which is in contact with the inner surface of the outer hollow body and the outer surface of the inner body and is fully formed between this area and forms a dimensionally stable connection between the outer hollow body and the inner body in the assembly.

Abstract: The invention concerns a device for a roller body of a rotation roller with an outer hollow body that has a cylindrical shape and is built with an internal cavity, an inner body that has a cylindrical shape and is arranged in an assembly with the outer hollow body in the internal cavity of the outer hollow body, and a centring device that is used during installation of the assembly to centrally position the inner body in the internal cavity; a relevant material bridge in the opposing end sections of the assembly, whereby the relevant material bridge is formed by a filler, which is applied and cured in a space at the end section of the assembly between an inner surface of the outer hollow body and an outer surface of the inner body, which is in contact with the inner surface of the outer hollow body and the outer surface of the inner body and is fully formed between this area and forms a dimensionally stable connection between the outer hollow body and the inner body in the assembly.

Abstract: The invention concerns a sleeve with a multiple layer structure for printing presses with king rolls configured as pneumatic cylinders; in particular a sleeve for the flexographic printing process, with an inner tube of reversibly expandable plastic material, whose internal diameter is smaller than the king roll diameter, with an elastic compressible intermediate layer that accommodates the radial expansion of the inner tube during installation, and with an outer layer. The invention concerns also a manufacture procedure for sleeves of this type. The sleeve in accordance with the invention is characterised by a support structure in the sleeve construction between inner tube and outer layer, which completely penetrates the compressible intermediate layer in at least one location in the radial direction and stabilises the outer layer relative to the inner tube in the circumferential direction and/or the radial direction.

Abstract: The invention relates to a sleeve for mounting on carrier cylinders of printing machines, with two flange rings 11, 12 on the ends, on which a cylindrical outer sleeve wall 20 and an inner sleeve wall 30 are supported at a distance from each other. In order to create a sleeve, more particularly an adapter sleeve, that can be easily mounted on and removed from carrier cylinders, is cost-effective to produce, and with a comparatively low weight allows extremely high printing qualities, it is envisaged in accordance with the invention that the external sleeve wall 20 comprises a fibre composite material with at least one layer of a carbon fibres-nonwoven sheet 21 and that between the two flange rings 11, 12 at least one support ring 40, 40A is provided that supports the outer sleeve wall 20, vis-à-vis the inner sleeve wall 30.

Abstract: The invention concerns a sleeve with a multiple layer structure for printing presses with king rolls configured as pneumatic cylinders; in particular a sleeve for the flexographic printing process, with an inner tube of reversibly expandable plastic material, whose internal diameter is smaller than the king roll diameter, with an elastic compressible intermediate layer that accommodates the radial expansion of the inner tube during installation, and with an outer layer. The invention concerns also a manufacture procedure for sleeves of this type. The sleeve in accordance with the invention is characterised by a support structure in the sleeve construction between inner tube and outer layer, which completely penetrates the compressible intermediate layer in at least one location in the radial direction and stabilises the outer layer relative to the inner tube in the circumferential direction and/or the radial direction.

Abstract: With the method according to the invention for producing a printing plate, in particular for flexoprinting, a layer of a curable elastomer is applied to a carrier (15) with a cylindrical surface area (26), subsequently the elastomer layer is cured to an essentially cylindrical endless printing form blank and possibly ground to a cylindrical peripheral form or processed otherwise, and afterwards the printing form blank (33) is separated along a line which is essentially parallel to the axial direction of the carrier and the printing plate produced in such a manner.

Abstract: A sleeve (10) for flexographic printing includes a sleeve body (2) made of an at least partially non-electroconductive material, which within its inside (4) is mountable on an electroconductive king roll on the outer wall of the roll, of a printing press, the king roll being designed as an air cylinder, and exhibiting at least one contact zone with the king roll. The sleeve exhibits an electroconductive surface (6), which is connected to the contact zone via at least one electroconductive element (20) provided in the sleeve body (2) for diverting electrostatic charges into the outer wall of the roll of the king roll. The sleeve is therefore given an electroconductive structure, through which the unavoidable electrostatic charges in printing presses with a plurality of printing couples are diverted via the king roll before it reaches a scale that would suffice for a discharge, ignition, or deflagration of the solvents used in the printing.

Abstract: The invention relates to an adapter sleeve 120 for mounting or changing working sleeves carrying print forms on king rolls of printing machines, said king rolls preferably embodied as an air cylinder, drivable, and having a sheath, where the adapter sleeve 120 can be pushed axially onto the sheath of the king roll, or can be removed from it, and the body of the adapter sleeve, in the mounted state, supports the working sleeve with its outer jacket. For mounting the adapter sleeve 120, hydraulic tightening elements integrated in them serve, said tightening elements being formed on the bushing elements 121 and 122 disposed at a distance from one another and being embodied by annular elements 151, 152 disposed on the inner side of the bushing elements 121 and 122. During operation the tightening elements cause the securing against rotation between the adapter sleeve 120 and the king roll.

Abstract: A sleeve (10) for flexographic printing includes a sleeve body (2) made of an at least partially non-electroconductive material, which within its inside (4) is mountable on an electroconductive king roll on the outer wall of the roll, of a printing press, the king roll being designed as an air cylinder, and exhibiting at least one contact zone with the king roll. The sleeve exhibits an electroconductive surface (6), which is connected to the contact zone via at least one electroconductive element (20) provided in the sleeve body (2) for diverting electrostatic charges into the outer wall of the roll of the king roll. The sleeve is therefore given an electroconductive structure, through which the unavoidable electrostatic charges in printing presses with a plurality of printing couples are diverted via the king roll before it reaches a scale that would suffice for a discharge, ignition, or deflagration of the solvents used in the printing.

Abstract: With the method according to the invention for producing a printing plate, in particular for flexoprinting, a layer of a curable elastomer is applied to a carrier (15) with a cylindrical surface area (26), subsequently the elastomer layer is cured to an essentially cylindrical endless printing form blank and possibly ground to a cylindrical peripheral form or processed otherwise, and afterwards the printing form blank (33) is separated along a line which is essentially parallel to the axial direction of the carrier and the printing plate produced in such a manner