CENTRAL-DRUM FLEXOGRAPHIC MACHINE FOR THE APPLICATION OF INKS CAPABLE OF UNDERGOING A LIQUID/GEL PHASE CHANGE

摘要

The flexographic machine comprises multiple printing units each including an inking roller and a plate-bearing roller for printing on a substrate (23) supported by a central drum (24). According to the invention, the inking (11) and plate-bearing (12) rollers include means for controlling the temperature of at least one surface of the rollers at a value within a first pre-determined range of temperature values in order to ensure that the ink that is in contact with said surface is in a liquid phase, and the central drum (24) includes means for controlling the temperature of the surface thereof at a value within a second pre-determined range of temperature values in order to ensure that the ink applied to the substrate (23) supported by the surface of the central drum undergoes and retains a change of phase to gel.