Alcohol-free or - reduced dampening device for processing damping agent in printer for offset lithographic printing on arc-shaped printing material, has hydrophilic roller rotationally driven by motor such that it compensates cord stripes

摘要

The device (3) has a dosing roller (8) lying against and rolling on an ink cartridge (5), and an applicator roll (9) resting against and standing in rotation contact with the dosing roller. A hydrophilic roller (11) e.g. slippage roller, friction roller and rubber roller, rests against the dosing roller, and is rotationally driven by a separate electric motor (12) such that it compensates cord stripes, where a peripheral surface speed difference between the roller and the dosing roller is adjustable.