Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising inter alia a blade mechanism (4) comprising a single substantially planar blade (40) with a straight edge (40a) extending along the full length of the cylinder to be coated and which is mounted rotatably about an axis parallel to the axis of rotation of the cylinder to be coated. The blade comprises, at its terminal end proximate to the cylinder, an inclined end portion (4a) having an inverted-V shape rising from the upper side of the blade, the top edge of the inclined end portion forming the straight edge of the blade. The blade is adapted to be rotated so that the straight edge of the blade undergoes an upward movement substantially tangential to the periphery of the cylinder in order to discontinue the application of the plastic composition onto the surface of the cylinder.

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising inter alia heating means (6) for applying radiant heat to the cylinder throughout its length as the cylinder is rotated, the heating means including a plurality of discrete heating elements (60) distributed along the length of the cylinder and around at least part of the peripheral surface of the cylinder, the heating elements being arranged at least in separate columns (60a to 6Oh) disposed parallel to one another along the length of the cylinder. The apparatus further comprises a temperature sensing system (9) for measuring the surface temperature of the cylinder along the length of the cylinder and a processing unit coupled to the temperature sensing system (9) for controlling operation of the heating elements (60) as a function of the measured surface temperature and a desired temperature setting (tc).

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising, inter alia, heating means (6) for applying radiant heat to the cylinder throughout its length, the heating means being disposed in a movable hood part (7) adapted to be moved on top of the cylinder for applying heat thereto or away from the cylinder to allow mounting or dismounting of the cylinder (C) on or from the apparatus. In the closed state, the hood part forms an interior space enclosing the cylinder. The hood part includes a hood body (71) and a window panel (72, 73) mounted on a front side of said hood body to allow a human operator to monitor deposition of the plastic composition onto the surface of the cylinder.

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising inter alia heating means (6) for applying radiant heat to the cylinder throughout its length as the cylinder is rotated, the heating means including a plurality of discrete heating elements (60) distributed along the length of the cylinder and around at least part of the peripheral surface of the cylinder, the heating elements being arranged at least in separate columns (60a to 6Oh) disposed parallel to one another along the length of the cylinder. The apparatus further comprises a temperature sensing system (9) for measuring the surface temperature of the cylinder along the length of the cylinder and a processing unit coupled to the temperature sensing system (9) for controlling operation of the heating elements (60) as a function of the measured surface temperature and a desired temperature setting (tc).

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising inter alia a blade mechanism (4) comprising a single substantially planar blade (40) with a straight edge (40a) extending along the full length of the cylinder to be coated and which is mounted rotatably about an axis parallel to the axis of rotation of the cylinder to be coated. The blade comprises, at its terminal end proximate to the cylinder, an inclined end portion (4a) having an inverted-V shape rising from the upper side of the blade, the top edge of the inclined end portion forming the straight edge of the blade. The blade is adapted to be rotated so that the straight edge of the blade undergoes an upward movement substantially tangential to the periphery of the cylinder in order to discontinue the application of the plastic composition onto the surface of the cylinder.

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising, inter alia, heating means (6) for applying radiant heat to the cylinder throughout its length, the heating means being disposed in a movable hood part (7) adapted to be moved on top of the cylinder for applying heat thereto or away from the cylinder to allow mounting or dismounting of the cylinder (C) on or from the apparatus. In the closed state, the hood part forms an interior space enclosing the cylinder. The hood part includes a hood body (71) and a window panel (72, 73) mounted on a front side of said hood body to allow a human operator to monitor deposition of the plastic composition onto the surface of the cylinder.