Abstract: The printing machine comprises an impression cylinder (10) having a support surface (10a) supporting a web substrate (S), a pressure roller (12) pressing the web substrate (S) against the impression cylinder (10), one or more printing units (14) for printing ink on said web substrate (S) supported on the impression cylinder (10), and a liquid applying unit (18) for applying liquid insoluble with the ink being printed on the support surface (10a) of the impression cylinder (10) upstream of said pressure roller (12), said liquid forming a liquid layer (L) on at least one specific area of the support surface (10a) of the impression cylinder (10), so that the liquid layer (L) provides an ink-repellent coating on areas of the support surface (10a) not covered by the web substrate (S) and optionally an increased bonding of the web substrate (S) to the support surface (10a).

Abstract: An automatic handling and transport device for printing sleeves that includes a holding support (10) for printing sleeves (60) and a clamping carriage (20) connected to a motorized carriage (30) for a guided movement of the clamping carriage (20) between a gripping position for gripping sleeves (60) and a transport position, and a mobile handling unit (90) carrying the holding support (10). The holding support (10) has an inner core (12) attached to the mobile handling unit (90), and the holding support (10) is coupled to the core (12) or to the mobile handling unit (90) through adaptable support means (40), which provide a relative movement with respect to the core (12) to at least one of the two ends of the holding support (10). The connection of the clamping carriage (20) to the motorized carriage (30) comprises adaptable means (49) that allow a relative movement between the clamping carriage (20) and the motorized carriage (30).

Abstract: Variable format offset printing machine having a central impression cylinder The printing machine comprises a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station comprises a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). Said blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdraw positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of said printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) comprised in an inclined first plane (P1) which does not comprise the axis of the central impression cylinder (1) at any of said multiple working positions for different diameters of the blanket and plate cylinders (2, 3).

Abstract: The printing machine comprises an impression cylinder (10) having a support surface (10a) supporting a web substrate (S), a pressure roller (12) pressing the web substrate (S) against the impression cylinder (10), one or more printing units (14) for printing ink on said web substrate (S) supported on the impression cylinder (10), and a liquid applying unit (18) for applying liquid insoluble with the ink being printed on the support surface (10a) of the impression cylinder (10) upstream of said pressure roller (12), said liquid forming a liquid layer (L) on at least one specific area of the support surface (10a) of the impression cylinder (10), so that the liquid layer (L) provides an ink-repellent coating on areas of the support surface (10a) not covered by the web substrate (S) and optionally an increased bonding of the web substrate (S) to the support surface (10a).

Abstract: An automatic handling and transport device for printing sleeves that includes a holding support (10) for printing sleeves (60) and a clamping carriage (20) connected to a motorized carriage (30) for a guided movement of the clamping carriage (20) between a gripping position for gripping sleeves (60) and a transport position, and a mobile handling unit (90) carrying the holding support (10). The holding support (10) has an inner core (12) attached to the mobile handling unit (90), and the holding support (10) is coupled to the core (12) or to the mobile handling unit (90) through adaptable support means (40), which provide a relative movement with respect to the core (12) to at least one of the two ends of the holding support (10). The connection of the clamping carriage (20) to the motorized carriage (30) comprises adaptable means (49) that allow a relative movement between the clamping carriage (20) and the motorized carriage (30).

Abstract: Variable format offset printing machine having a central impression cylinder The printing machine comprises a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station comprises a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). Said blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdraw positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of said printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) comprised in an inclined first plane (P1) which does not comprise the axis of the central impression cylinder (1) at any of said multiple working positions for different diameters of the blanket and plate cylinders (2, 3).

Abstract: The printing machine has a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station includes a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). The blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdrawn positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of the printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) in an inclined first plane (P1), which does not include the axis of the central impression cylinder (1) at any of the multiple working positions for different diameters of the blanket and plate cylinders (2, 3).

Abstract: The printing machine comprises a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station comprises a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). Said blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdraw positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of said printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) comprised in an inclined first plane (P1) which does not comprise the axis of the central impression cylinder (1) at any of said multiple working positions for different diameters of the blanket and plate cylinders (2, 3).

Abstract: The invention relates to a device for use in an offset printing press, for permitting the supporting and positioning of at least the format-dependent printing cylinders of the printing press individually exchangeably therein, in which for positioning of at least the format-depending printing cylinders provision is being made for a system with bearing arms, by means of which these cylinders can be positioned by rotation.