Abstract: The present invention relates to the field of the intaglio printing process. In particular, the present invention relates to a method that combines intaglio inks curable by oxidation with UV-VIS-curable intaglio inks on one intaglio plate or cylinder. The disclosed method results in an intaglio printed security element using advantageously the unalike properties of the different inks while enabling the printing on a standard printing press in one printing step.

Abstract: A variable lithographic cleaning apparatus, system and method works on the principle that dust and ink residue may be transferred from a lower surface energy reimageable conformable blanket surface to a higher surface energy surface low durometer cleaning member, such as the tacky roller, and then to an even higher surface energy cleaning member, such as the hard roller, which is hard and robust to scratching. The hard roller can then been scrubbed clean by an ink flushing device having a third cleaning member, such as a melamine sponge, wetted with a cleaning solution with the hard roller dried upon each rotation.

Abstract: A photosensitive resin printing plate precursor includes at least a substrate and a photosensitive resin layer, the photosensitive resin layer containing: (A) a partially saponified polyvinyl acetate, (B) a polyamide having basic nitrogen, (C) a compound having an ethylenic double bond, and (D) a photopolymerization initiator; the photosensitive resin layer including at least an underlayer and a printing surface layer; the substrate, the underlayer, and the printing surface layer being included in this order; and the photosensitive resin layer containing, as the partially saponified polyvinyl acetate (A), those (A1) having an average polymerization degree of 1,200 to 2,600 in the printing surface layer and those (A2) having an average polymerization degree of 400 to 800 in the underlayer.

Abstract: Methods of printing nanoparticulate ink using nanoporous print stamps are disclosed. A nanoporous print stamp can include a substrate, a patterned arrangement of carbon nanotubes disposed on the substrate, and a secondary material disposed on the carbon nanotubes to reduce capillary-induced deformation of the patterned arrangement of carbon nanotubes when printing nanoparticulate ink. Some methods include loading a nanoporous print stamp with nanoparticulate colloidal ink such that the nanoparticulate colloidal ink is drawn into microstructures of the patterned arrangement of carbon nanotubes via capillary wicking. Nanoparticulate colloidal ink can include nanoparticles dispersed in a solution.

Abstract: The imaging sensitivity of negative-working lithographic printing plate precursors is improved by removing ozone from the ambient air surrounding the precursors that can be stored near an imaging means such as a platesetter prior to use. Ozone can be removed using a suitable filter containing activated charcoal or other ozone decomposing means, through which ambient air is filtered before and during the imaging process.

Abstract: A method according for preparing a lithographic printing plate containing a lithographic image consisting of printing areas and non-printing areas includes the steps of jetting and curing droplets of a first curable fluid on a hydrophilic support thereby forming a printing area of the lithographic image; and jetting and curing droplets of a second curable fluid in a non-printing area of the lithographic image thereby forming a hydrophilic protective layer on the hydrophilic support.

Abstract: A dampening fluid deposition system includes a vapor generator adjacent the air supply channel and in fluid communication with a dampening fluid supply to produce dampening fluid vapor. The vapor generator includes a vapor channel having an interior in communication with air confined within the air supply channel. The vapor generator may include a liquid reservoir receiving dampening fluid from the dampening fluid supply and a heater that heats the received dampening fluid into dampening fluid vapor. The liquid reservoir may include a wick that stores dampening fluid and releases dampening fluid vapor into the vapor channel and a heat conductive tub that holds the wick and dampening fluid. The passive dampening fluid deposition system mixes the dampening fluid vapor with the confined air to form an air/vapor mix that is condensed as a layer of dampening fluid onto the reimageable surface of an imaging member.

Abstract: Durable seamless replication tools are disclosed for replication of seamless relief patterns in desired media, for example in optical recording or data storage media. Methods of making such durable replication tools are disclosed, including preparing a recording substrate on the inner surface of a support cylinder, recording and developing a relief pattern in the substrate, creating a durable negative relief replica of the pattern, extracting the resulting durable tool sleeve from a processing cell, and mounting the tool sleeve on a mounting fixture. Apparatus are disclosed for fabricating such seamless replication tools, including systems for recording a desired relief pattern on a photosensitive layer on an inner surface of a support cylinder. Also disclosed are electrodeposition cells for forming a durable tool sleeve having a desired relief pattern. The replication tool relief features may have critical dimensions down to the micron and nanometer regime.

Abstract: The present invention provides a silicone composition for use in a printing plate, the composition including at least: a SiH group-containing compound; a compound represented by the following general formula (I); a compound represented by the following general formula (II); and/or a compound represented by the following general formula (III); wherein Ds in the compound represented by the general formula (I), Gs in the compound represented by the general formula (II) and Js in the compound represented by the general formula (III) each represents an acetoxy group or a dialkyloximino group: A-Si-(D)3 (I) (wherein in the general formula (I), A represents a non-hydrolyzable functional group capable of undergoing a hydrosilylation reaction with a SiH group); E-Si-(G)3 (II) (wherein in the general formula (II), E represents a non-hydrolyzable functional group incapable of undergoing a hydrosilylation reaction with a SiH group); and Si-(J)4 (III).

Abstract: A dampening fluid recycling system may include a print station having an imaging member with a reimageable surface, a dampening fluid deposition subsystem for applying a layer of dampening fluid onto the reimageable surface, and a dampening fluid recovery subsystem configured to remove excess dampening fluid vapor that does not condense over the reimageable surface. The dampening fluid deposition subsystem may include a dampening fluid supply chamber, a dampening fluid supply channel, and a dampening fluid supply channel outlet. The dampening fluid supply chamber may include an inlet tube and a tube body that may be a split tube. The dampening fluid supply channel may attach to the split tube and descend towards the imaging member to deliver fluid vapor from both parts of the first split tube onto the reimageable surface of the imaging member.

Abstract: Provided is a flexo printing plate which makes it possible to perform printing in which the discontinuity of density is not visually recognized by inhibiting the enlargement of halftone dots in the boundary between an image portion having a low halftone dot area ratio and a non-image portion. The flexo printing plate adopts a constitution in which, within the highlight halftone dot portion having a halftone dot area ratio of higher than 0% and equal to or lower than 10%, among the small dots constituting the highlight halftone dot portion, at least one small dot adjacent to the non-image portion that continues 10 mm or further in a direction separating from the edge of the highlight halftone dot portion has a height smaller than the average height of the small dots of the highlight halftone dot portion.

Abstract: A transfer printing method provides a first wafer having a receiving surface, and removes a second die from a second wafer using a die moving member. Next, the method positions the second die on the receiving surface of the first wafer. Specifically, to position the second die on the receiving surface, the first wafer has alignment structure for at least in part controlling movement of the die moving member.

Abstract: Curable compositions are based on ethoxylated triacrylates and alkylglycidyletheracrylates which can be employed to obtain printing products with a soft touch coating. The curable compositions are processed in conventional printing machines where sheets of glossy and matt paper have the curable compositions applied thereto with an anilox roller and then the paper is dried by UV lamps.

Abstract: An ink composition for high-speed screen printing, includes a solvent with a boiling point of not less than 170° C. at not less than 70 wt % of the total solvent, and a prepolymer or polymer with a weight-average molecular weight of not less than 2000 at not less than 7 wt % with respect to the total ink composition, and having a viscosity of not less than 6 Pa·s and less than 30 Pa·s as measured with a BH-type rotating viscosimeter at 25° C., and a thixotropic index (TI value) of 2.0 to 8.0, the measured flow radius value of 14.0 to 24.0 mm after 1 minute from the start of measurement by a flow property measuring method using a spread meter at 25° C. according to JIS K5701-1:2000.

Abstract: An ink composition for screen printing having a measured flow radius value 13.0 to 24.0 mm after 1 minute from the start of measurement by a flow property measuring method using a spread meter at 25° C. according to JIS K5701-1:2000, “F60”?“F45”?1.0 mm is satisfied, wherein “F60” and “F45” are defined as measured flow radius values after 1 minute and 45 seconds, respectively, from the start of measurement by the flow property measuring method, the viscosity is 5 to 180 Pa·s, the thixotropic index is 2.0 to 8.0, the composition contains a solvent with a boiling point at least 170° C. at least at 70 mass % and a thermoplastic polymer with a weight-average molecular weight of at least 4000 and with a Tg of 20 to 95° C. at least at 10 mass %, wherein the printed image coating film has an elongation percentage at least 250%.

Abstract: A method for reconstructing a relief print master with a three-dimensional printer includes introducing cavities inside the relief print master in order to control its compressibility.

Abstract: Provided are a lithographic printing plate precursor including an aluminum support, and an image recording layer on the aluminum support, in which the aluminum support includes an anodized film on a surface of the image recording layer side, the anodized film has micropores extending in a depth direction from the surface of the anodized film on the image recording layer side, an average pore diameter of the micropores in the surface of the anodized film is greater than 0 ?m and 0.03 ?m or less, an average maximum diameter of the micropores inside the anodized film is in a range of 0.04 ?m to 0.30 ?m, an average value A nm of thicknesses of surface opening portions and an average value B nm of thicknesses of internal maximum diameter portions satisfy a relationship of 2.5?B/A?28.0, and the image recording layer contains an acid color former; a method of preparing a lithographic printing plate using the lithographic printing plate precursor; and a lithographic printing method.

Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard, a contact angle to the glass substrate is less than 10°, and an adhesion with a substrate coated with an adhesive layer after curing is 100-5,000 gf/25 mm.

Abstract: A photosensitive resin composition for flexographic printing, comprising at least (A) a hydrophilic copolymer, (B) an elastomer, (C) a polymerizable unsaturated monomer, and (D) a photopolymerization initiator, wherein, in a cross-section of a cured product of the resin composition, a phase area of a phase comprising the hydrophilic copolymer (A), SA, is 15% or more and 60% or less, and a proportion of the phase having a phase area of 3 ?m2 or more and less than 100 ?m2 is 20 (% by area) or more of the phase comprising the hydrophilic copolymer (A).

Abstract: A method of preparing a lithographic printing plate includes the steps printing a liquid on a lithographic support to form a printing area which corresponds to a raster image, wherein the raster image includes a section which has a tone-value from 90% to 100%, and the jetted liquid droplets for this section, on a corresponding part from the printing area on the lithographic support, are contactless with each other.