There is disclosed a selective wetting apparatus comprising a roller rotatable about a roller axis and comprising a wettable roller surface; an applicator unit having a lip which extends parallel to the roller axis and is radially spaced apart from the roller surface by a gap, wherein the applicator unit is to convey liquid agent towards the roller so that the liquid agent forms a liquid bridge over the gap to wet a wetted axial portion of the roller surface; and a flow guide to direct a gas flow into a regulated axial portion of the gap to locally prevent formation of a liquid bridge, and thereby prevent wetting of a corresponding axial portion of the roller surface.

There is disclosed a selective wetting apparatus comprising a roller rotatable about a roller axis and comprising a wettable roller surface; an applicator unit having a lip which extends parallel to the roller axis and is radially spaced apart from the roller surface by a gap, wherein the applicator unit is to convey liquid agent towards the roller so that the liquid agent forms a liquid bridge over the gap to wet a wetted axial portion of the roller surface; and a flow guide to direct a gas flow into a regulated axial portion of the gap to locally prevent formation of a liquid bridge, and thereby prevent wetting of a corresponding axial portion of the roller surface.

A printing press for printing on metal cans includes a plurality of inkers. Each inker prints a different color ink on the cans, and includes a first module, a second module, a roller and a support member. The first module has motors to drive output shafts. The second module has ink displacement units, an ink inlet to provide ink to the ink displacement units, ink channels to transfer ink from the ink displacement units to ink outlets of the second module and input shafts to removably couple to the output shafts of the first module. The roller receives ink from the ink displacement units and transfers the ink toward the cans. The support member supports the first and second modules in at least one position relative to the roller. The support member facilitates removal of the second module by a press operator for cleaning the ink channels.

For accelerated setting of a quantity of ink in an inking unit of an offset printing unit, it is proposed to maximise the quantity of ink transported out of an ink duct of the inking unit over an ink duct roller (1) and a lifting roller (6) into the inking unit during the adjustment of ink metering elements (3) which determine the metering of the ink in terms of the quantity thereof on the ink duct roller.

For accelerated setting of a quantity of ink in an inking unit of an offset printing unit, it is proposed to maximise the quantity of ink transported out of an ink duct of the inking unit over an ink duct roller (1) and a lifting roller (6) into the inking unit during the adjustment of ink metering elements (3) which determine the metering of the ink in terms of the quantity thereof on the ink duct roller.

An apparatus for inking a roller of a decorator press for printing on metal cans has a main body disposed the decorator press, the main body having a blade holder portion. A plurality of ink inlets is spaced longitudinally along the length of the main body or the blade holder portion. The ink inlets lead to a plurality of ink channels terminating downstream from the inlets. A blade is coupled to the blade holder portion, the blade configured to spread ink from the plurality of ink channels onto the roller of the decorator press. An adjustment device is configured to provide movement of the blade from a first operating position coupled to the blade holder to a second operating position coupled to the blade holder.

An apparatus for inking a roller of a decorator press for printing on metal cans has a main body disposed the decorator press, the main body having a blade holder portion. A plurality of ink inlets is spaced longitudinally along the length of the main body or the blade holder portion. The ink inlets lead to a plurality of ink channels terminating downstream from the inlets. A blade is coupled to the blade holder portion, the blade configured to spread ink from the plurality of ink channels onto the roller of the decorator press. An adjustment device is configured to provide movement of the blade from a first operating position coupled to the blade holder to a second operating position coupled to the blade holder.

A device (3000) for loading fluid into nozzle(s) of a nozzle-bearing body (3070) includes a first member (3010), having a first surface (3016), and a second member (3020) protruding from the first member (3010). The second member (3020) has second and third surfaces (3028, 3026), the second surface (3028) extending from the first surface (3016) at an angle. The first surface (3016) substantially complements the shape of the nozzle-bearing body's surface (3070). The device (3000) has a recess (3023) defined therein at least in part by the first and second surfaces (3016, 3028). When the device (3000) is placed into a working configuration with the nozzle-bearing body (3070), a tangent to the third surface (3026), in a region of the third surface (3026) proximate to where the second surface (3028) meets the third surface (3026), is substantially parallel to a tangent to the first surface (3016), in a region of the first surface (3016) where the first surface (3016) meets the second surface (3028), wherein, the recess (3023) forms a pocket for receiving the fluid.

A doctor blade (5, 7) for contact with an anilox roller (15) comprises a flat, elongate base element having a thickness of less than about 0.3 mm, which, along a longitudinal region of the doctor blade adapted for contact with said anilox roller, is provided with a coating (43). The coating comprises a metal matrix and at least about 65% by weight of one or more ceramic(s). The coating comprises 0 to 65% by weight of chromium carbide. An inking arrangement comprises an anilox roller and a doctor blade. A doctor blade is used in flexographic printing.

A doctor blade (5, 7) for contact with an anilox roller (15) comprises a flat, elongate base element having a thickness of less than about 0.3 mm, which, along a longitudinal region of the doctor blade adapted for contact with said anilox roller, is provided with a coating (43). The coating comprises a metal matrix and at least about 65% by weight of one or more ceramic(s). The coating comprises 0 to 65% by weight of chromium carbide. An inking arrangement comprises an anilox roller and a doctor blade. A doctor blade is used in flexographic printing.