Abstract: A method for making a negative-working lithographic printing plate includes subjecting an image-wise exposed, developed, and dried plate precursor to UV LED radiation.

Abstract: A method of lithographic plate making is disclosed wherein a plate precursor is exposed to laser radiation in the wavelength range from 350 to 450 nm, said plate precursor comprising a hydrophilic support and a photopolymerizable or photocrosslinkable image recording layer, and then processed on-press by supplying fountain and ink. The exposure produces a visible image having a 1976 CIELAB color distance ?E between exposed and non-exposed areas of at least 2.5.

Abstract: A lithographic printing plate precursor is disclosed including a support and a coating comprising a sensitizer and an onium salt wherein the onium salt and the sensitizer are capable of inducing a print-out image upon UV light exposure.

Abstract: A method of lithographic plate making is disclosed wherein a plate precursor is exposed to laser radiation in the wavelength range from 350 to 450 nm, said plate precursor comprising a hydrophilic support and a photopolymerizable or photocrosslinkable image recording layer, and then processed on-press by supplying fountain and ink. The exposure produces a visible image having a 1976 CIELAB color distance AF between exposed and non-exposed areas of at least 2.5.

Abstract: A negative-working lithographic printing plate precursor includes (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, and (ii) a coating including a photopolymerisable layer including a photoinitiator and a polymerizable compound, and the photoinitiator includes at least one structural moiety including an oligo- or poly(alkyleneglycol).

Abstract: A method for making a negative-working lithographic printing plate is disclosed which includes subjecting an image-wise exposed, developed and dried plate precursor to UV LED radiation.

Abstract: A method of making a lithographic printing plate includes the steps of (i) image wise exposing a lithographic printing plate precursor with a digitally modulated light source so as to obtain image areas in the exposed parts of the precursor and non-image areas in the non-exposed parts of the precursor, the precursor including a hydrophilic substrate and a photosensitive layer applied onto the substrate, the photosensitive layer including a diazonium compound; and (ii) contacting the exposed precursor with an aqueous solution including a water-soluble hydrophilic polymer and/or surfactant and having a pH between 3 and 9 thereby first removing the photosensitive layer in the non-image areas and depositing the hydrophilic polymer and/or surfactant onto the substrate in the non-image areas of the printing plate precursor.

Abstract: A system for exposing a heat and/or light sensitive printing plate precursor including a coating on a support includes a platesetter including a laser head for generating a laser beam to create an image, and the platesetter further includes an electrostatic generator capable of electrostatically charging the surface of the coating.

Abstract: The present invention, in an embodiment, is a chocolate product that includes a carbohydrate such as starch, dextrin, or maltodextrin having a bulk density of 0.01 gram/cubic centimeter to 0.4 gram/cubic centimeter; 30 weight percent to 70 weight percent, based on the total weight of the carbohydrate and the vegetable oil, of a vegetable oil that is an unsaturated fat; and cocoa butter. In other embodiments, the present invention is a method of making a chocolate product.

Abstract: A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating containing a colorant precursor to form a lithographic image consisting of printing areas and non-printing areas, b) developing the plate precursor to remove the coating in the non-printing areas from the support, and c) drying the plate precursor, and d) subjecting the plate precursor to heat or radiation to induce a colour change of the coating in the printing areas, wherein before step b) the coating in the non-printing areas and the support are characterised by a CIE 1976 colour difference ?E1 which is 5.0 or less, and after step d) the CIE 1976 colour difference ?E2 between the coating in the printing areas and the non-printing areas is more than 6.8.

Abstract: A system for exposing a heat and/or light sensitive printing plate precursor including a coating on a support includes a platesetter including a laser head for generating a laser beam to create an image, and the platesetter further includes an electrostatic generator capable of electrostatically charging the surface of the coating.

Abstract: A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating containing a colorant precursor to form a lithographic image consisting of printing areas and non-printing areas, b) developing the plate precursor to remove the coating in the non-printing areas from the support, and c) drying the plate precursor, and d) subjecting the plate precursor to heat or radiation to induce a colour change of the coating in the printing areas, wherein before step b) the coating in the non-printing areas and the support are characterised by a CIE 1976 colour difference ?E1 which is 5.0 or less, and after step d) the CIE 1976 colour difference ?E2 between the coating in the printing areas and the non-printing areas is more than 6.8.

Abstract: A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor, including a support including a hydrophilic surface or a hydrophilic layer and, thereon, a light or heat sensitive coating including a photopolymerizable composition, b) processing the precursor, consecutively, with a first solution and a second solution, to remove the coating from the support in the non-printing areas, wherein the first and second solutions are provided by a cascade system, the second solution overflows into the first solution and the first solution overflows into a container to be treated as waste, and the second solution is regenerated by adding a replenishing solution or a mixture of replenishing solutions at a rate of at least 5 ml/m2 of treated precursor and at most 100 ml/m2 of treated precursor.

Abstract: An apparatus and method for processing a lithographic printing plate include a plate transport for conveying the plate through the apparatus, a plate detector for locating the plate in the apparatus and for determining a plate width, one or more nozzles for depositing developer on the plate, wherein the one or more nozzles are arranged to shuttle over the plate or are arranged as a fixed array that spans at least the width of the plate. The plate detector is coupled to the one or more nozzles to selectively actuate the one or more nozzles that are positioned to deposit developer across the plate area, which results in a significant reduction of developer consumption. In preferred embodiments, the nozzles apply developer in accordance with the image on the plate, which enables an even lower consumption of developer.

Abstract: A method of making a lithographic printing plate comprising the steps of a) image-wise exposing a lithographic printing plate precursor, including a support including a hydrophilic surface or a hydrophilic layer and, thereon, a light or heat sensitive coating including a photopolymerisable composition, b) processing the precursor, consecutively, with a first solution and a second solution, to remove the coating from the support in the non-printing areas, wherein the first and second solutions are provided by a cascade system, the second solution overflows into the first solution and the first solution overflows into a container to be further treated as waste, the second solution is regenerated by adding a replenishing solution or a mixture of replenishing solutions at a rate of at least 5 ml/m2 of treated precursor and at most 100 ml/m2 of treated precursor, the first and second solutions are circulated respectively by a first and second liquid conveying system, the first solution present in the first liquid

Abstract: A method for making a lithographic printing plate precursor is disclosed comprising the steps of a. providing a lithographic printing plate precursor including a support having a hydrophilic surface or which is provided with a hydrophilic layer, a photopolymerizable coating comprising a photopolymerizable composition, and an overcoat layer comprising a water soluble low molecular weight acid, wherein said overcoat layer has a surface pH-value ranging between 1 to 6; b. image-wise exposing the precursor; c. optionally heating the exposed precursor; d. processing the obtained precursor by applying a gum solution and optionally brushing the precursor, and/or by mounting the precursor on a plate cylinder of a lithographic printing press and rotating the plate cylinder while feeding dampening liquid and/or ink to the coating.

Abstract: A lithographic printing plate precursor comprising an image-recording layer, said image-recording layer being photopolymerizable upon exposure to light having a wavelength of from 300 to 500 nm and containing a mixture of sensitizers.

Abstract: A lithographic printing plate precursor comprising an image-recording layer, said image-recording layer being photopolymerizable upon exposure to light having a wavelength of from 300 to 500 nm and containing a mixture of sensitizers.

Abstract: A method of preparing a lithographic printing plate in which no pre-heat step is used comprising the steps of:—providing a lithographic printing plate precursor comprising a support and a photopolymerizable image-recording layer, the image-recording layer comprising a monomer and a binder;—image-wise exposing the precursor in an exposure unit;—off press developing the exposed precursor with an aqueous solution in a processing unit; characterized in that the ratio of the total amount of monomer to the total amount of binder is at least 1 and the time lapse between exposing an image-area of the precursor and contacting the image-area with the aqueous solution is at least 1 minute.

Abstract: A method of preparing a lithographic printing plate in which no pre-heat step is used comprising the steps of:—providing a lithographic printing plate precursor comprising a support and a photopolymerizable image-recording layer, the image-recording layer comprising a monomer and a binder;—image-wise exposing the precursor in an exposure unit;—off press developing the exposed precursor with an aqueous solution in a processing unit; characterized in that the ratio of the total amount of monomer to the total amount of binder is at least 1 and the time lapse between exposing an image-area of the precursor and contacting the image-area with the aqueous solution is at least 1 minute.