Patent application number | Description | Published |
20080295720 | Method For Making A Lithographic Printing Plate - A method for making a lithographic printing plate includes the steps of a) providing an aqueous fluid containing at least 2 weight % of a fluorosurfactant based on the total weight of the aqueous fluid wherein the fluorosurfactant has a phosphorous containing group capable of reacting with the surface of a lithographic printing plate precursor; and b) jetting the aqueous fluid on the surface of a lithographic printing plate precursor. | 12-04-2008 |
20080307990 | Method of Making a Lithographic Printing Plate - A method of making a lithographic printing plate includes the steps of: a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including an imaging layer, and, optionally, an intermediate layer between the imaging layer and the support, wherein the imaging layer includes a switchable polymer, b) image-wise exposing the coating, whereby the polymer undergoes a chemical reaction induced by the exposing step thereby creating a lithographic image consisting of printing areas and non-printing areas wherein the non-printing areas are removable from the support by a gum solution, and c) developing the precursor by treating the coating of the precursor with the gum solution thereby removing the non-printing areas. | 12-18-2008 |
20090155722 | METHOD FOR MAKING A LITHOGRAPHIC PRINTING PLATE - A method for making a lithographic printing plate includes the steps of (i) providing a negative-working, heat-sensitive lithographic printing plate precursor including a support having a hydrophilic surface or which is provided with a hydrophilic layer and a coating provided thereon, the coating including an image-recording layer which includes hydrophobic thermoplastic polymer particles, a binder, and an infrared absorbing dye, wherein the hydrophobic thermoplastic polymer particles have an average particle diameter, measured by Photon Correlation Spectroscopy, of more than 10 nm and less than 40 nm, and the amount of the IR-dye, without taking into account an optional counter ion, is more than 0.70 mg per m | 06-18-2009 |
20090258314 | NEGATIVE WORKING, HEAT SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR - A heat-sensitive negative-working lithographic printing plate precursor include a support having a hydrophilic surface or which is provided with a hydrophilic layer and a coating provided thereon, the coating including an image-recording layer which includes hydrophobic thermoplastic polymer particles, a binder, and an infrared absorbing dye; wherein the hydrophobic thermoplastic polymer particles have an average particle diameter, measured by Photon Correlation Spectroscopy, of more than 10 nm and less than 40 nm; the amount of the IR-dye, without taking into account an optional counter ion, is more than 0.80 mg per m2 of the total surface of the thermoplastic polymer particles, measured by Hydrodynamic Fraction; and—the amount of hydrophobic thermoplastic polymer particles relative to the total weight of the ingredients of the imaging layer is at least 60-%. | 10-15-2009 |
20100037791 | METHOD OF MAKING A LITHOGRAPHIC PRINTING PLATE - A method for making a lithographic printing plate including the steps of providing a lithographic printing plate precursor including a heat sensitive image-recording layer, the image-recording layer including hydrophobic thermoplastic particles; image-wise exposing the precursor to infrared radiation having an energy density of 190 mJ/cm2 or less; mounting the exposed precursor on a printing press; developing the mounted precursor by supplying ink and/or fountain; and baking the plate by keeping the plate at a temperature above the glass transition temperature of the thermoplastic particles during a period between 5 seconds and 2 minutes. | 02-18-2010 |
20100040976 | HEAT-SENSITIVE IMAGING ELEMENT - A heat-sensitive imaging element includes an IR dye, and more particularly a heat-sensitive lithographic printing plate precursor includes the IR dye. A method for making the lithographic printing plate produces a print-out image of high contrast upon exposure to IR-radiation or heating. | 02-18-2010 |
20100050895 | PROCESSLESS LITHOGRAPHIC PRINTING PLATE - According to the present invention a non-ablative, negative-working, heat-sensitive printing plate precursor is disclosed capable of switching from a hydrophilic state into a hydrophobic state upon exposure to heat and/or infrared light. The printing plate precursor is obtainable by the method comprising the step of providing on a support a titanium oxide layer by reactive physical vacuum deposition of titanium, characterised in that said vacuum deposition is carried out under a partial oxygen pressure of 10% or more and less than 25%. | 03-04-2010 |
20100221662 | HEAT-SENSITIVE IMAGING ELEMENT - A heat-sensitive imaging element includes an IR dye having a structure according to Formula I, | 09-02-2010 |
20100307360 | METHOD FOR MAKING A LITHOGRAPHIC PRINTING PLATE PRECURSOR - A method for making a lithographic printing plate precursor comprising the steps of: (i) providing a grained and anodized aluminum support; (ii) treating the support with an aqueous solution comprising a salt of zirconium; (iii) treating the support with an aqueous solution comprising a compound comprising a phosphonic acid group and/or an ester or a salt thereof; (iv) applying a coating comprising hydrophobic particles and a binder; (v) drying said coating. | 12-09-2010 |