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: 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: The invention relates to a form for the rotary machine printing, coating or imprinting of web-shaped materials and a method of producing the form wherein at a carrier having a cylindrical surface area an elastomer layer is attached which after curing at the outer circumference thereof is machined and engaged to result in a cylindrical shape. Furthermore the invention is characterized in that the elastomer layer is formed of a hot cure single-constituent or two-constituent silicone polymer.

Abstract: The invention relates to a form for the rotary printing, coating or imprinting of web-shaped materials and a method of producing the form wherein an elastomer layer is applied onto a carrier with a cylindrical surface area with the layer machined and engraved at the outer circumference to result in a cylindrical shape after curing. The form according to the invention is characterized in that the elastomer layer is formed of cold cure material. The engraving of the elastomer layer preferably is attained by laser engraving.