Abstract: An ink composition for a reversibly thermochromic stamp including a reversibly thermochromic microencapsulated pigment encapsulating a reversibly thermochromic composition including: Component (A): an electron-donating color-developing organic compound, Component (B): an electron-accepting compound, and Component (C): a reaction medium causing reversibly an electron transfer reaction between the Component (A) and the Component (B) in a specific temperature range, water and a thickener.

Abstract: A photosensitive resin constituent for a flexographic printing plate includes at least a support, a photosensitive resin composition layer, and a particle layer. The photosensitive resin composition layer contains a photosensitive resin composition containing a binder, a monomer, and a polymerization initiator. The particle layer contains a resin composition containing a binder having a crosslinkable group and a particle having a pore structure, and the particle having a pore structure has an average particle size of 1 ?m or more and 10 ?m or less, and a specific surface area of 350 m2/g or more and 1000 m2/g or less.

Abstract: In an example, a printer ink dryer unit comprises at least one ultraviolet light source to dry a printer ink layer by causing evaporation of a solvent fluid therefrom.

Abstract: In an example, a printer ink dryer unit comprises at least one ultraviolet light source to dry a printer ink layer by causing evaporation of a solvent fluid therefrom.

Abstract: The invention relates to an exposure apparatus (1) for exposing plate-shaped materials (2). The plate-shaped material (2) has a first side (3) and a second side (4) that lies opposite the first side (3). The exposure apparatus (1) comprises a first exposure unit (10) and a conveyor unit (30), wherein the first exposure unit (10) comprises at least one segment with a light source and has an embodiment so as to be rotatable about an axis (14), and the first exposure unit (10) and the conveyor unit (30) are configured in such a way that the first side (3) of the plate-shaped material (2) is supplied for an exposure in a first position (11) of the exposure unit (10) and the second side (4) of the plate-shaped material (2) is supplied for an exposure in a second position (12) of the exposure unit (10). Further aspects of the invention relate to methods for exposing plate-shaped material and a printing plate that was produced from a plate-shaped material according to any one of the methods.

Abstract: 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/m2 or more and 7 ml/m2 or less of the ink onto a printing medium.

Abstract: A system is for processing a photosensitive flexographic printing plate having a latent image formed by image-wise exposure of an aqueous-processable photopolymer. The system can use a first aqueous processing solution with the latent image for cleaning and then washing a resulting relief image with a second aqueous processing solution, where the second aqueous processing solution is devoid of the photopolymer. A processing solution tank is configured to combine the first used aqueous processing solution with the second used aqueous processing solution to form a combined used aqueous processing solution. A processing solution removal can include: a holding tank configured for receiving the combined used aqueous processing solution; and a conduit from the processing solution tank to the holding tank. The processing solution tank includes the combined used aqueous processing solution at less than a predefined maximum volume and having the photopolymer at less than a predefined maximum concentration.

Abstract: Disclosed is a heat-sensitive processless planographic printing plate material containing a thermosensitive protection layer. The planographic printing plate material sequentially comprises a supporting body, a hydrophilic layer, a heat-sensitive layer and a thermosensitive protection layer from the bottom up. The thermosensitive protection layer therein can not only isolate oxygen and protect the heat-sensitive layer from oxygen inhibition, but can also sense heat and allow a polymerization reaction to take place. Thus the binding force between same and the next layer is improved, so that the precision of printing plate images is high, the development performance is good, and the pressrun is high.

Abstract: A method of manufacturing an imprint stamp including forming an imprint resist only in a second area of a sample substrate including a first area and the second area, pressing the imprint resist with the imprint stamp and curing the imprint resist, in which the imprint stamp includes a fine protrusion pattern that corresponds to the first area and the second area of the sample substrate, and separating the imprint stamp from the sample substrate such that a portion of the fine protrusion pattern corresponding to the second area is separated from the imprint stamp by the cured imprint resist.

Abstract: In embodiments, the present invention relates to a method of producing a multilayered printed item, comprising: (a) providing a coating of curable composition comprising a polymer powder, at least one plasticizer, and at least one monomer and/or oligomer, onto the substrate or a thereon previously applied layer or coating; (b) heating the curable coating composition to a temperature of about 70-120° C., to provide a gelled curable coating; (c) providing a coating of curable composition comprising a polymer powder, at least one plasticizer, and at least one monomer and/or oligomer, onto the previously applied layer or coating; (d) heating the other curable as above, to provide second gelled curable coating; (e) before crosslinking is performed, the multilayer-coated substrate formed is heated to a temperature of about 130-160° C.; and (f) crosslinking the heated multilayer-coated substrate, by irradiation and/or subjection to heat at a temperature of about 165-190° C.

Abstract: Provided are a lithographic printing plate precursor including: a hydrophilized aluminum support, and a water-soluble or water-dispersible negative type image recording layer provided on the aluminum support, in which an arithmetic average height Sa of a surface of an outermost layer on a side opposite to a side where the image recording layer is provided is in a range of 0.3 ?m to 20 ?m; a method of producing the lithographic printing plate precursor; a lithographic printing plate precursor laminate formed of the lithographic printing plate precursor; and a lithographic printing method.

Abstract: In an example, a printer ink dryer unit comprises at least one ultraviolet light source to dry a printer ink layer by causing evaporation of a solvent fluid therefrom.

Abstract: The present invention aims to provide a method of producing a printed matter that shows suppressed scumming in planography. A method of producing a printed matter, the method including the steps of: allowing a dampening water to adhere to a hydrophilic layer of a planographic printing plate having at least the hydrophilic layer and a heat sensitive layer; allowing an ink to adhere to the heat sensitive layer; and transferring the ink adhering to the heat sensitive layer to an object to be printed; wherein the pH (A) of the ink and the pH (B) of the dampening water are both from 1 to 6.5.

Abstract: An indexing image for craft stamps that is opaque to the eye but transparent to UV light is produced by printing a wavelength-specific solvent-based ink on the stamp substrate. This eliminates the step of printing a separate adhesive-backed indexing image sheet and applying it to the substrate.

Abstract: The present invention provides a lithographic printing plate precursor that enables a lithographic printing plate formed therefrom to have excellent image visibility and a long press life, as well as a lithographic printing plate manufacturing method and a printing method.

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: A paperless transfer printing method includes the following steps: (a) printing, by a printing machine, aqueous ink onto a transfer printing temporary carrier in a set pattern, wherein a surface of the transfer printing temporary carrier is made of an elastic polymer material and a surface tension of the aqueous ink is less than the critical surface tension of the transfer printing temporary carrier; (b) drying the to-be-transferred pattern on the transfer printing temporary carrier; (c) wetting the transfer printing temporary carrier by using an aqueous surface tension increasing liquid; and (d) separating the aqueous solution or the aqueous dispersion liquid from the transfer printing temporary carrier at a tight-contact position between the transfer printing temporary carrier and the fabric, so that an aqueous ink dye is transferred onto the fiber of the fabric.

Abstract: The present invention aims to provide a photosensitive CTP flexographic printing original plate wherein no wrinkle is generated during handling of the CTP printing original plate against environmental changes throughout the year and barrier property is also excellent. A water-developable photosensitive CTP flexographic printing original plate which is characterized in that it comprises at least a support, a photosensitive resin layer, a barrier layer and a heat-sensitive mask layer which are sequentially layered, that the barrier layer contains a polyamide resin (A) containing a basic nitrogen atom in a molecule and a polyamide resin (B) containing 40 to 70% by mass of an alkylene glycol structural unit in a molecule, and that a content of the polyamide resin (B) to a total content of the polyamide resin (A) and the polyamide resin (B) is 25 to 52% by mass.

Abstract: Provided is a precursor for lithographic printing having excellent printing durability and ink repellency as well as high reproducibility of the high definition images. The precursor for lithographic printing includes, at least a heat sensitive layer and an ink repellent layer wherein the ink repellent layer has an elastic modulus of the plate surface under the surface load of 14000 N/m2 of at least 25 MPa and up to 35 MPa.

Abstract: Lithographic printing plate precursors are prepared with a unique substrate and one or more radiation-sensitive imageable layers. The substrate is prepared by two separate anodizing processes to provide an inner aluminum oxide layer having an average dry thickness (Ti) of 650-3,000 nm and a multiplicity of inner micropores having an average inner micropore diameter (Di) of ?15 nm. A formed outer aluminum oxide layer comprises a multiplicity of outer micropores having an average outer micropore diameter (Do) of 15-30 nm; an average dry thickness (To) of 130-650 nm; and a micropore density (Co) of 500-3,000 micropores/?m2. The ratio of Do to Di is greater than 1.1:1, and Do in nanometers and the outer aluminum oxide layer micropore density (Co) in micropores/?m2, are further defined by the outer aluminum oxide layer porosity (Po) according to the following equation: 0.3?Po?0.8 where Po is 3.14(Co)(Do2)/4,000,000.