Abstract:
There is disclosed a printing unit (1) for use in an offset machine. The printing unit allows a broader use of offset machines (1). This is achieved in that the lacquer application means and the water application means comprise a unit (28) consisting of a doctor blade chamber device (30) and at least one roller (29, 32) for transferring lacquer or water from the doctor blade chamber device (30) to the plate cylinder (15) of the printing unit.
Abstract:
A pumping unit (1) for supplying printing ink to a printing unit (2) is described. In order to achieve as effective a utilisation of the printing unit (2) as possible and the shortest possible time for exchanging different printing ink colours, the described pumping unit (1) is arranged with a printing ink tank (27) and a cleaning liquid tank (28). The pipe (33, 34) for sucking up or return pumping of the cleaning liquid/printing ink may be slided from a position in one or the other tank (27, 28). Process steps of inking as well as of cleaning are controlled by a central control unit (44) so that the only intervention of the operator that is necessary, is exchange of the printing ink tank (22) when a new printing ink colour is to be applied in the printing unit (2).
Abstract:
There is disclosed a printing unit (1) for use in an offset machine. The printing unit allows a broader use of offset machines (1). This is achieved in that the lacquer application means and the water application means comprise a unit (28) consisting of a doctor blade chamber device (30) and at least one roller (29, 32) for transferring lacquer or water from the doctor blade chamber device (30) to the plate cylinder (15) of the printing unit.