A flexographic printing raw plate including: a support; a photosensitive resin composition layer on the support; an intermediate layer; and an infrared ablation layer in the presented order, wherein in a tensile stress-strain curve diagram measured by molding the intermediate layer into dumbbell shape No. 8 with a thickness of 100 ?m in accordance with JIS K 6251 (2017), an elongation at a breaking point is 5% or more and 200% or less, an elongation at a point where the stress is maximized is 3% or more and 200% or less, and a maximum value of the stress is 1.0 MPa or more and 15 MPa or less.

A composite panel for use in the manufacture of a letterpress plate has a carrier layer, with at least one photo layer which can be structured via electromagnetic radiation in a wavelength range. The photo layer is arranged on the carrier layer. The task of proposing a composite panel use in the manufacture of a letterpress plate is achieved by the fact that a barrier layer is provided. The barrier layer is arranged on the side of the photo layer opposite to the carrier layer. The barrier layer is essentially transparent in the wavelength range in which the photo layer can be structured. The present disclosure concerns a process for manufacturing a letterpress plate using at least one composite panel and a process for manufacturing a composite plate in accordance with the invention. The invention concerns the use of a composite material in a composite panel for a letterpress plate.

Disclosed herein is a method for flexographically printing over a textured surface. The method comprises selecting a substrate for application of a print pattern and advancing the substrate through a flexographic coil paint line in order to apply a primer to at least one side of the substrate. Next a finish coat is flexographically applied to the primed substrate and due to a chemical reaction of the applied finish coat along with supplemental heating, the finish coat forms a textured surface. Next, a print pattern is flexographically applied atop the textured surface.

A printed electrical device is formed using a flexographic printing system. A flexographic printing plate having a pattern of raised features includes an active region having a plurality of parallel traces separated by a trace spacing of between 5-40 microns that are used to form active micro-traces that provide an electrical function, and an inactive region adjacent to the active region having one or more protective features that are used to form electrically-inactive features. The protective features are separated from an outermost trace of the plurality of traces by a gap distance of between 60% and 250% of the trace spacing. The flexographic printing plate is used to transfer ink from an anilox roller to a substrate to provide a printed pattern corresponding to the pattern of raised features on the flexographic printing plate.

A method for controlling a drive of a machine having at least one first roll element, which rolls with a surface on a counter surface at least in subintervals of a revolution cycle with the action of a contact force under elastic deformation, that includes a speed correction method, which automatically compensates for deformation-related deviations of the peripheral velocity of the first roll element by way of an adaptation of the setpoint value for the velocity of the first roll element, and a retrospective method, which automatically compensates for deviations of the speed consistency of the first roll element within a revolution cycle by applying a correction signal determined from the curve of a control variable, in particular an actual velocity or actual position of the first roll element, in a preceding revolution cycle or in multiple preceding revolution cycles, are applied in combination.

An electroluminescent flexographic printing ink and a preparation method thereof. The ink includes, in parts by weight, the following components: 0.5 parts to 2 parts by weight of an electroluminescent material; 120 parts to 150 parts by weight of a monomer; 10 parts to 20 parts by weight of a prepolymer; and 0 part to 5 parts by weight of a leveling agent; wherein the electroluminescent ink for flexographic printing of the luminescent layer of the electroluminescent device does not comprise a pigment; and the electroluminescent ink for flexographic printing of the luminescent layer of the electroluminescent device has a particle size of less than 0.1 ?m, a viscosity of 20 cP to 2,000 cP at 25? C., a surface tension of 18 mN/m to 37 mN/m at 25? C., and a curing time of 10 min to 30 min.

In some examples, a processing machine for processing a substrate includes at least one shaping unit and/or at least one application unit. The at least one application unit and/or the at least one shaping unit in each case includes at least one forme cylinder and at least one impression cylinder. The at least one forme cylinder of the application unit includes at least one application forme including at least one application surface and/or the at least one shaping unit includes at least one shaping tool including at least one working surface. The application surface and/or the working surface are arranged to cover at least a portion of the outer cylindrical surface of the at least one forme cylinder. A speed of the at least one forme cylinder and a speed of the at least one impression cylinder have a speed ratio with respect to one another.

The invention relates to a method of aligning a plurality of printed motifs on a sheet (3) in a converting machine (10). An actual position (Pa_1) at a first sensor is defined as an initial reference position (P_ref1) for the sheet, and at least one displacement error (?d2) is calculated and compared to a first threshold (T1). If the displacement error is lower than the first threshold, then the angular position (?) of a printing cylinder (42) in the second flexographic printing unit (16b) is adjusted. However, if the error is higher than the first threshold, then at least part of the of the displacement error (?d_2) is corrected by modifying the speed (V) of a vacuum transfer unit located between the first printing unit and the second printing unit.

The present invention is to provide a flexographic printing plate having high ink transferability and making it possible to perform printing with a high ink density in a solid portion, a flexographic printing plate precursor, a method for manufacturing a flexographic printing plate, and a method for manufacturing a flexographic printing plate precursor. A flexographic printing plate of the present invention includes a relief layer including a non-image area and an image area having an uneven structure formed on a surface, in which the uneven structure is composed of recessed portions consisting of a plurality of grooves and projecting portions other than recessed portions, each of the plurality of grooves has a length of at least 30 m, all of the plurality of grooves are grooves having a line edge roughness in a range of 0.5 to 2.5 m in a region of 30 m of the groove in a longitudinal direction, a depth of the recessed portion is 5 to 25 m, and a ratio of the projecting portion is 5% to 60% of a geometric area of the uneven structure.

An object of the present invention is to provide a flexographic printing plate having excellent ink transferability in a solid portion and the like and having good printing quality in a halftone portion. The flexographic printing plate of the present invention is a flexographic printing plate having a relief layer including a non-image area and an image area, in which the image area has a halftone dot portion having a halftone dot area ratio of more than 0% and less than 100%, and a solid portion having a halftone dot area ratio of 100%, small dots in the halftone dot portion and the solid portion or small dots in the halftone dot portion have two or more recessed portions having different depths according to a halftone dot area ratio, and the two or more recessed portions having different depths are recessed portions whose depth becomes deeper as the halftone dot area ratio increases.