| Patent application number | Description | Published |
|---|
| 20100104980 | LITHOGRAPHIC PRINTING PLATE PRECURSOR - A lithographic printing plate precursor comprising an image-recording layer, said image-recording layer being photo-polymerizable upon exposure to actinic light and containing a mixture of sensitizers characterized in that said mixture of sensitizers has in 1-methoxy-2-propanol at 80° C. a solubility of at least 30 wt. %. and preferably a MetaStable Zone Width (MSZW) of at least 8.5° C., said MSZW measured at a cooling and heating rate of 0.2° C./minute. | 04-29-2010 |
| 20100129755 | METHOD FOR MAKING A LITHOGRAPHIC PRINTER PLATE PRECURSOR - 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. The printing plate obtained after imaging and processing in an off-press configuration with a gum solution or in an on-press configuration with fountain solution and ink shows an improved roll-up performance in the start-up of a printing process on a printing press. | 05-27-2010 |
| 20100159388 | LITHOGRAPHIC PRINTING PLATE PRECURSOR - 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. | 06-24-2010 |
| 20100190105 | LITHOGRAPHIC PRINTING PLATE PRECURSOR - 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. | 07-29-2010 |
| 20100248150 | METHOD FOR PREPARING LITHOGRAPHIC PRINTING PLATE PRECURSORS - The method of preparing a lithographic printing plate precursor according to the present invention comprises the steps of: providing an aluminum support; graining and anodizing the aluminum support; without applying a hydrophilic layer on the anodized aluminum support, coating a composition which is photopolymerizable upon absorption of light having a wavelength in the range of from 350 nm to 450 nm and comprising a polymerizable monomer or oligomer, a binder and a photo-initiator on the grained and anodized aluminum support to form a photopolymerizable layer; coating an overcoat on the photopolymerizable layer; characterized in that the ratio of the total solid amount of polymerizable monomer and oligomer to the total solid amount of binder is from 1.0 to 2.0. | 09-30-2010 |
| 20110059401 | METHOD FOR PREPARING LITHOGRAPHIC PRINTING PLATES - A method of preparing a lithographic printing plate including the steps of providing a lithographic printing plate precursor including a photopolymerizable coating provided on a hydrophilic support;—image-wise exposing the precursor;—pre-heating the exposed precursor;—developing the exposed precursor in a gum solution; wherein after pre-heating and before developing the precursor an accelerated cooling of the precursor is carried out and the cooling does not essentially remove a part of the coating of the precursor. | 03-10-2011 |
| 20110143284 | METHOD AND APPARATUS FOR PREPARING LITHOGRAPHIC PRINTING PLATE PRECURSORS - 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. | 06-16-2011 |
