Provided are a modular processing unit that is standardizable, capable of enhancing production efficiency, and is also flexibly customizable, and a fully automatic gravure cylinder manufacturing system using the modular processing unit. The modular processing unit includes a pair of frame members provided upright so as to face each other, a first processing module including a first processing bath module, a first beam module provided horizontal to a floor, and a first chuck module, and a second processing module including a second processing bath module, a second beam module provided horizontal to the floor, and a second chuck module. The modular processing unit has multi-stage structure with at least the first processing module and the second processing module being assembled onto the frame members.

A method of depositing a fluid onto a substrate. The method can include the steps of: providing a substrate; providing a fluid; providing a rotating roll comprising an exterior surface wherein the rotating roll rotates about the central longitudinal axis and an exterior surface defines an interior region; providing a vascular network to supply the fluid from the interior region to the exterior surface of the rotating roll in a predetermined path; transporting the fluid to the vascular network; controlling the flow of the fluid to move the fluid at a predetermined flow rate to at least one of the at least two fluid exits; and contacting the substrate with the fluid.

A rotating roll for depositing a fluid on a substrate is disclosed. The rotating roll can have a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis. The rotating roll can have an exterior surface defining an interior region and a vascular network configured for transporting the fluid in predetermined paths from an interior region to the exterior surface of the rotating roll. The vascular network can have a main artery, a first capillary and a plurality of fluid exits on the exterior surface. The main artery can have an inlet and is substantially parallel to the central longitudinal axis of the rotating roll. Fluid enters the vascular network at the inlet and exits through substantially radial fluid paths to form a first tree.

Provided is a cylinder etching apparatus, which is capable of performing etching more uniformly than in the prior art and is also capable of solving a problem in that a remaining etching solution in an etching solution supply tube flows down therefrom. The cylinder etching apparatus includes: a processing bath; chuck means; at least one etching solution supply tube; and a plurality of ejection nozzles juxtaposed in the etching solution supply tube and configured to eject an etching solution from the etching solution supply tube. The etching solution ejected from the ejection nozzles through the etching solution supply tube is caused to impinge against a surface of the cylinder to be processed, to thereby etch the surface of the cylinder to be processed. The ejection nozzles are oriented obliquely upward with respect to a horizontal direction. An ejection direction of the ejection nozzle is oriented toward a rotation center of the cylinder to be processed from a position that is obliquely downward of the cylinder to be processed. The ejection nozzles are arranged so as to be brought closer to and away from the surface of the cylinder to be processed.

The rotogravure cylinder comprising a rotary gravure base and thereon a copper engraving layer contains a zinc layer between a gravure base and a layer package suitable for engraving and printing. This layer package for instance can comprise a metallic support layer, a copper engraving layer and suitably a protection layer. Deposition of the zinc layer may be tuned for thickness variation, in combination with deposition of the layer package in a fixed thickness.

The rotogravure printing system comprising a machine provided with at least one shaft (6) and means for movement and for rotation of said shaft (6) and a rotogravure cylinder sleeve (10) to be rotated by means of the at least one shaft (6), further comprising a first substantially annular end plate (7) which is in use connected to the shaft (6) of the system, which end plate (7) is provided with at least one contact surface (23) that is designed for contact with a mating contact surface (13) defined at an inner side (12) of the cylinder sleeve (10).

Provided are a modular processing unit that is standardizable, capable of enhancing production efficiency, and is also flexibly customizable, and a fully automatic gravure cylinder manufacturing system using the modular processing unit. The modular processing unit includes a pair of frame members provided upright so as to face each other, a first processing module including a first processing bath module, a first beam module provided horizontal to a floor, and a first chuck module, and a second processing module including a second processing bath module, a second beam module provided horizontal to the floor, and a second chuck module. The modular processing unit has multi-stage structure with at least the first processing module and the second processing module being assembled onto the frame members.

In a gravure plate for wiring printing on which a recessed portion defining a wiring pattern is formed on a plate surface, a projecting portion for reducing a volume of the recessed portion is formed on a bottom surface of the recessed portion. A contour of the projecting portion in cross section parallel to the plate surface has a semicircular arc shape, which protrudes toward one side in one direction that is parallel to the plate surface, on the one side. The recessed portion has a side wall that is composed of a plane orthogonal to the plate surface and faces the projecting portion at a distance of 15 m or less without coming into contact with the projecting portion. The contour of the projecting portion has a semicircular arc shape, which protrudes toward the side wall, also on a side closer to the side wall.

In a gravure plate for wiring printing on which a recessed portion defining a wiring pattern is formed on a plate surface, a projecting portion for reducing a volume of the recessed portion is formed on a bottom surface of the recessed portion. A contour of the projecting portion in cross section parallel to the plate surface has a semicircular arc shape, which protrudes toward one side in one direction that is parallel to the plate surface, on the one side. The recessed portion has a side wall that is composed of a plane orthogonal to the plate surface and faces the projecting portion at a distance of 15 m or less without coming into contact with the projecting portion. The contour of the projecting portion has a semicircular arc shape, which protrudes toward the side wall, also on a side closer to the side wall.

The rotogravure cylinder comprising a rotary gravure base and thereon a copper engraving layer is refurbished to contain a zinc layer between a gravure base and a layer package suitable for engraving and printing. This layer package for instance comprises a metallic support layer, a copper engraving layer and suitably a protection layer. Deposition of the zinc layer may be tuned for thickness variation, in combination with deposition of the layer package in a fixed thickness.