Abstract

An anilox roll (104) is provided, having at least one channel (302a, 302b; 312a, 312b; 402a, 402b) on its surface, the at least one channel (302a, 302b; 312a, 312b; 402a, 402b) having a course (602) extending in a straight course direction with an angle to a circumferential direction of the anilox roll (104), each channel being limited by a first wall (301a; 311a; 401a) and a second wall (301 b; 311 b; 401 b) opposing said first wall, said first wall having a meandering shape which touches a first straight virtual line (303b; 313b; 403b) at one or more points but does not intersect said first straight virtual, said first virtual line being at the channel side and parallel to said course direction; said second wall having a meandering shape which touches a second straight virtual line at one or more points but does not intersect said second straight virtual line, said second straight virtual line being at the channel side and being parallel to said first straight virtual line; said first straight virtual line being separated from said second straight virtual line by a distance D, wherein either said distance D = 0 or -12µm<0<12µm, preferably, -5µm<0<5µm, and most preferably, -2µm<0<2µm.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B41N 7/06 - Shells for rollers of printing machines for inking rollers

Abstract

An anilox roll (104) is provided, having at least one channel (302a, 302b; 312a, 312b; 402a, 402b) on its surface, the at least one channel (302a, 302b; 312a, 312b; 402a, 402b) having a course (602) extending in a straight course direction with an angle to a circumferential direction of the anilox roll (104), each channel being limited by a first wall (301a; 311a; 401a) and a second wall (301 b; 311 b; 401 b) opposing said first wall, said first wall having a meandering shape which touches a first straight virtual line (303b; 313b; 403b) at one or more points but does not intersect said first straight virtual, said first virtual line being at the channel side and parallel to said course direction; said second wall having a meandering shape which touches a second straight virtual line at one or more points but does not intersect said second straight virtual line, said second straight virtual line being at the channel side and being parallel to said first straight virtual line; said first straight virtual line being separated from said second straight virtual line by a distance D, wherein either said distance D = 0 or -12μm<0<12μm, preferably, -5μm<0<5μm, and most preferably, -2μm<0<2μm.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• B41N 7/06 - Shells for rollers of printing machines for inking rollers
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head

Abstract

An apparatus (310) for flexographic printing comprises a main body (320), and the main body comprises: an outer wall with an exterior surface, at least two compartments (410-413) in the main body, and at least two inlet channels (420-422); at least two outlets (321, 322), wherein each compartment connects to at least one outlet and to at least one inlet channel, such that gas is able to flow from each inlet channel to at least one outlet via at least one compartment, wherein the at least two compartments are separated from each other such that the gas is not able to flow from one compartment to another compartment.

IPC Classes  ?

• B41F 27/10 - Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
• B41F 5/24 - Rotary letterpress machines for flexographic printing

Goods & Services

Common metals and their alloys. Machines and tools, namely: rolls (part of a machine) for use in printing, coating or other applications comprising the transfer of fluid via a metering roll; metering rolls of metal used in printing and coating machines; anilox rolls, glue rolls and doctor rolls of metal used in printing and coating machines. Treatment of materials, namely engraving, coating, etching and generally surface-processing of metering rolls, anilox rolls, glue rolls and doctor rolls.

Abstract

A printing apparatus has a printing device having a supply for a substrate to be printed and a supply for ink. The printing device has a printing roll with an image and an anilox roll mounted in a bearing. The anilox roll comprising a cylinder having a surface with a fluid distribution structure for receiving the fluid. The fluid distribution structure has a channel formed in the surface for distributing the fluid over the fluid distribution structure. The channel having a course and opposite channel walls positioned next to each other in a relative parallel oscillating fashion. Printing in a first operational mode, heavy layers of ink on said substrate with relatively large fluid droplets and Printing in a second operational mode, details on said substrate with relatively small fluid droplets.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• A01B 29/00 - Rollers
• B41N 7/06 - Shells for rollers of printing machines for inking rollers
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B41F 31/02 - Ducts, containers, supply or metering devices

Abstract

The invention relates to an anilox roll for a printing apparatus. The anilox roll comprises a cylinder having a surface. The surface comprises a fluid distribution structure for receiving, distributing and transferring a fluid such as an ink. The fluid distribution structure comprises a channel formed in the surface having channel walls. This channel is arranged for distributing the fluid over the fluid distribution structure. The channel comprises channel parts, wherein the courses of connected channel parts are at an angle with respect to each other for preventing a linear distribution of the fluids to be received in a course direction of the channel, allowing a meandering distribution of the fluid to be received in the channel. Side walls of the channel are arranged for allowing a meandering flow of the fluid throughout the fluid distribution surface.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• B41N 7/06 - Shells for rollers of printing machines for inking rollers
• B41F 31/02 - Ducts, containers, supply or metering devices
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece

Abstract

The invention relates to a method and apparatus for forming an anilox roll. The method includes supplying a cylinder of the anilox roll that has an outer surface to be tooled, supplying at least a laser source and laser engraving the outer surface of the anilox roll with a laser spot that is formed by a laser source for obtaining a tooled anilox roll, and applying an optical guide in the light path of the laser for enabling the laser spot to move reciprocally on the outer surface to be tooled.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• A01B 29/00 - Rollers
• B41F 31/02 - Ducts, containers, supply or metering devices
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B41N 7/06 - Shells for rollers of printing machines for inking rollers

Goods & Services

[ Common metals and their alloys ] Machines and tools, namely: rolls (part of a machine) for use in printing, coating or other applications comprising the transfer of fluid via a metering roll; metering rolls of metal used in printing and coating machines; anilox rolls, glue rolls and doctor rolls of metal used in printing and coating machines [ Treatment of materials, namely, engraving, coating, etching and generally surface-processing of metering rolls, anilox rolls, glue rolls and doctor rolls ]

Goods & Services

Common metals and their alloys, namely metering rolls used in printing and coating machines; anilox rolls, glue rolls and doctor rolls used in printing and coating machines. Machines and tools, namely: rolls (part of a machine) for use in printing, coating or other applications comprising the transfer of fluid via a metering roll. Treatment of materials, namely engraving, coating, etching and generally surface-processing of metering rolls, anilox rolls, glue rolls and doctor rolls.

Abstract

The invention relates to an anilox roll for a printing apparatus. The anilox roll comprises a cylinder having a surface. The surface comprises a fluid distribution structure for receiving, distributing and transferring a fluid such as an ink. The fluid distribution structure comprises a channel formed in the surface having channel walls. This channel is arranged for distributing the fluid over the fluid distribution structure. The channel comprises channel parts, wherein the courses of connected channel parts are at an angle with respect to each other for preventing a linear distribution of the fluids to be received in a course direction of the channel, allowing a meandering distribution of the fluid to be received in the channel. Side walls of the channel are arranged for allowing a meandering flow of the fluid throughout the fluid distribution surface.

IPC Classes  ?

• B41F 31/26 - Construction of inking rollers
• B41F 31/02 - Ducts, containers, supply or metering devices
• B41N 7/06 - Shells for rollers of printing machines for inking rollers
• B41N 1/06 - Printing plates or foils; Materials therefor metallic for relief printing or intaglio printing

Abstract

The invention relates to an anilox roll for a printing apparatus. The anilox roll comprises a cylinder having a surface. The surface comprises a fluid distribution structure for receiving, distributing and transferring a fluid such as an ink. The fluid distribution structure comprises a channel formed in the surface having channel walls. This channel is arranged for distributing the fluid over the fluid distribution structure. The channel comprises channel parts, wherein the courses of connected channel parts are at an angle with respect to each other for preventing a linear distribution of the fluids to be received in a course direction of the channel, allowing a meandering distribution of the fluid to be received in the channel. Side walls of the channel are arranged for allowing a meandering flow of the fluid throughout the fluid distribution surface.

IPC Classes  ?

• B41F 31/02 - Ducts, containers, supply or metering devices
• B41F 31/26 - Construction of inking rollers
• B41N 7/06 - Shells for rollers of printing machines for inking rollers

Abstract

The invention relates to an anilox roll for a printing apparatus. The anilox roll comprises a cylinder having a surface. The surface comprises a fluid distribution structure for receiving, distributing and transferring a fluid such as an ink. The fluid distribution structure comprises a channel formed in the surface having channel walls. This channel is arranged for distributing the fluid over the fluid distribution structure. The channel comprises channel parts, wherein the courses of connected channel parts are at an angle with respect to each other for preventing a linear distribution of the fluids to be received in a course direction of the channel, allowing a meandering distribution of the fluid to be received in the channel. Side walls of the channel are arranged for allowing a meandering flow of the fluid throughout the fluid distribution surface.

IPC Classes  ?

• B41F 31/02 - Ducts, containers, supply or metering devices
• B41F 31/26 - Construction of inking rollers
• B41N 7/06 - Shells for rollers of printing machines for inking rollers
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece