Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.

Disclosed is a thin-film radio frequency absorber material that is mass-produced by a high-speed manufacturing method of printing a highly controlled pattern of conductive ink squares onto a thin roll film, resulting in a lightweight low-cost radio frequency absorber component that is flexible for use in multiple novel configurations. The roll film material and printed squares are each easily adjustable to a specific size and thickness within the manufacturing process to coincide with control and protections related to variable specific radio and radar wave frequencies. Further integration into the three-layered thin-profile radio frequency energy absorber and reflector assembly provides control and protection properties related to radio and radar frequency, infrared, electromagnetic pulse, electromagnetic interference, and thermal insulation values in structural building panels utilized in lightweight structures such as the foldable transportable structure or other types of building and protection assemblies.

The invention relates to a sealing system, the sealing system comprising two first sealing members (62) which are each disposed at opposite lateral ends (56) of a doctor blade chamber (48), and two second sealing members (64) which are each disposed at opposite lateral ends (60) of the rotatable roller (46), wherein in operational mode, each of the two first sealing members (62) is in rotating contact with each of the two second sealing members (64) such that a leakage of ink at the opposite lateral ends (56) of the doctor blade chamber (48) is prevented.

It is especially described a control process for intaglio printing, in particular for printing paper securities, such as banknotes. This control process includes defining on an intaglio printing plate (80) control areas (150, 151-155; 170, 171-179) designed in such a manner as to allow in particular evaluation of effects of the printing pressure applied during printing of a substrate by means of the intaglio printing plate (80) and evaluation of effects of the ink coverage applied during inking of the intaglio printing plate (80), which control areas (150, 151-155; 170, 171-179) are engraved in a portion of the intaglio printing plate (80) in order to produce corresponding printed control zones (160, 161-165) on the substrate. The process further includes carrying out of measurements in the printed control zones allowing evaluation of the printing pressure applied during printing of the substrate as well as of the ink coverage applied during inking of the intaglio printing plate (80).

A gravure printing system comprising a gravure cylinder having a first plurality of discrete cells disposed upon an outer surface thereof is disclosed. Each cell of said first plurality of discrete cells has a nominal diameter and is capable of receiving a fluid that is a first combination of at least two primary fluids. The fluid is fluidically displaceable through a discrete channel having a single entry point at said first position and a single exit point into a first cell of said first plurality of discrete cells. The outer surface has a metal plating disposed thereon. The metal plating reduces the nominal diameter of each cell of the first plurality of discrete cells.

Doctor blades (5, 7) for contact with an anilox roller (15) comprise a flat, elongate base element, 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 a ceramic or at least about 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.

The invention provides a combination of an ink reservoir and doctor blade assembly (2) and a rotatable cylinder (3) for a printing press, which form a chamber for containing ink, wherein the ink reservoir and doctor blade assembly (2) comprises a scaling assembly (203) for scaling an axial end of the chamber, or sealing a sub-chamber of the chamber from another sub-chamber of the chamber, wherein the sealing assembly (203) comprises a seal (2031) presenting a seal contour (SC) to sealingly engage a circumferential surface of the cylinder (3), and a flexible biasing device (2032) forming one or more cavities (2041-2043), and being arranged to receive a pressurized fluid in the one or more cavities (2041-2043), for biasing the seal (2031) into sealing engagement with the cylinder (3), wherein the combination is arranged according to one or both of the following alternatives (a) and (b): (a): in an axis perpendicular plane, which is perpendicular to the rotational axis of the cylinder (3) and coincides with a cross-section of the biasing device, the biasing device (2032) has a peak (2032P) or a summit (2032S) which is located within an extension (EXTSC) of the seal contour (SC) along a reference plane (RP) which coincides with the rotational axis of the cylinder (3) and which is perpendicular to a seal location plane (SLP) which coincides with the rotational axis of the cylinder (3) and a circumferential mid-point of the seal contour (SC), (b): the biasing device presents one or more surfaces which extend, in the axis perpendicular plane, in parallel with the seal location plane (SLP), and which face at least partly away from the seal location plane (SLP), and/or one or more surfaces which face partly away from the reference plane (RP), and the seal (2031) covers any such surface.

Provided is a gravure printing method by which high printing density and excellent highlight suitability are obtained, even if a gravure plate having high resolution and reduced thickness is used. The gravure printing method comprises: using an aqueous ink having a Zahn cup #3 viscosity at 20? C. of 11.0 seconds or more and 20.0 seconds or less, and having an evaporation rate of 30 mass % or less in a drying test, the drying test involving drying 1 g of the ink at a temperature of 40? C. and an air flow of 1,400 L/min for 30 minutes; and transferring 1 ml/m.sup.2 or more and 7 ml/m.sup.2 or less of the ink onto a printing medium.

There is described an inspection system (50) for in-line inspection of sheet or web material on an intaglio printing press, wherein the inspection system comprises an optical quality control apparatus for carrying out inspection of a printed area on a printed side of the sheet or web material, the optical quality control apparatus including a camera system (55) with one or more camera units each comprising at least one line-scan camera (56) for scanning and acquiring an image of the printed area while the sheet or web material is being transported in the intaglio printing press past the camera system (55). A location of the at least one line-scan camera (56) in the intaglio printing press along a delivery path of the sheet or web material is such that cyclical vibrations that spread periodically throughout the intaglio printing press during operation of the intaglio printing press do not occur while the camera system (55) is scanning the printed area of the sheet or web material and acquiring a complete image of the printed area.

There is described an inspection system (50) for in-line inspection of sheet or web material on an intaglio printing press, wherein the inspection system comprises an optical quality control apparatus for carrying out inspection of a printed area on a printed side of the sheet or web material, the optical quality control apparatus including a camera system (55) with one or more camera units each comprising at least one line-scan camera (56) for scanning and acquiring an image of the printed area while the sheet or web material is being transported in the intaglio printing press past the camera system (55). A location of the at least one line-scan camera (56) in the intaglio printing press along a delivery path of the sheet or web material is such that cyclical vibrations that spread periodically throughout the intaglio printing press during operation of the intaglio printing press do not occur while the camera system (55) is scanning the printed area of the sheet or web material and acquiring a complete image of the printed area.