Patent application number | Description | Published |
20100242766 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND LITHOGRAPHIC PRINTING METHOD - To provide a lithographic printing plate precursor capable of obtaining a plenty of sheets of good printed matters with practical energy dosage, which is excellent in on-press developing property and press life, and capable of reducing pollution of fountain solution, and provide a lithographic printing method. The lithographic printing plate precursor comprises a support having provided thereon an image-recording layer, which lithographic printing plate precursor is mounted on a printing press and imagewise exposed, or mounted on the printing press after imagewise exposure, and then developed by feeding printing ink and/or a fountain solution, wherein at least a part of the unexposed part of the image-recording layer is not dissolved in the printing ink, the fountain solution or both of them, and removed by falling out of film, and the invention provides a lithographic printing method using the same. | 09-30-2010 |
20120103220 | LITHOGRAPHIC PRINTING PLATE PRECURSOR - A lithographic printing plate precursor which is capable of undergoing on-press development by supplying at least one of printing ink and dampening water and includes a support and an image-recording layer, wherein the image-recording layer contains at least one of compounds represented by the formulae (1) to (3) as defined herein. | 05-03-2012 |
20120202152 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD THEREOF - A lithographic printing plate precursor comprising a support, tin image-recording layer which contains (A) an infrared absorbing agent, (B) a radical polymerization initiator and (C) a radical polymerizable compound and in which an unexposed area can be removed by supplying printing ink and dampening water after exposure, and an overcoat layer in this order, wherein the overcoat layer contains at least two kinds of inorganic stratiform compounds having different crystal structures. | 08-09-2012 |
20130014657 | PLATE MAKING METHOD OF LITHOGRAPHIC PRINTING PLATEAANM Sonokawa; KojiAACI Haibara-gunAACO JPAAGP Sonokawa; Koji Haibara-gun JP - A plate making method of a lithographic printing plate comprising (1) preparing a lithographic printing plate precursor capable of forming an image with a semiconductor laser emitting an infrared ray having a wavelength from 760 to 1,200 nm which comprises a support and an image-recording layer containing a cyanine dye, a diphenyl iodonium salt or triphenyl sulfonium salt which may have a substituent on the phenyl group, a radical polymerizable compound and a polymer fine particle having a polyoxyalkylene chain in its side chain in this order, (2) placing a lith film on the lithographic printing plate precursor and reducing pressure so that the lith film is closely adhered to the lithographic printing plate precursor, (3) conducting UV exposure, and (4) conducting on-press development. | 01-17-2013 |
20130344444 | PROCESS FOR MAKING LITHOGRAPHIC PRINTING PLATE - A process for making a lithographic printing plate is provided that includes a step of producing a negative-working lithographic printing plate precursor comprising a photopolymerizable photosensitive layer above a support; a step of imagewise exposing the negative-working lithographic printing plate precursor; and a step of developing the exposed negative-working lithographic printing plate precursor by means of a developer comprising at least (Component A) a compound represented by Formula (I), (Component B) a compound represented by Formula (II), and (Component C) water. | 12-26-2013 |
20140020585 | PROCESS FOR MAKING LITHOGRAPHIC PRINTING PLATE - A process for making a lithographic printing plate is provided that includes a step of producing a negative-working lithographic printing plate precursor comprising, above a support, a photopolymerizable photosensitive layer comprising a vinylcarbazole compound-derived monomer unit-containing acrylic polymer and/or a urethane-acrylic hybrid polymer, a step of imagewise exposing the negative-working lithographic printing plate precursor, and a step of developing the exposed negative-working lithographic printing plate precursor using a developer comprising (Component A) an organic solvent having a solubility in water at 20° C. of 1.5 to 7.0 g/100 mL, (Component B) an amphoteric surfactant represented by Formula (I) below and/or Formula (II) below, and (Component C) water. | 01-23-2014 |
20140202349 | PROCESS FOR MAKING LITHOGRAPHIC PRINTING PLATE - A process for making a lithographic printing plate enables a one-bath processable lithographic printing plate having excellent printing durability, ink laydown and resistance to staining during printing. The process includes a step of producing a negative-working lithographic printing plate precursor having, above a support, a photopolymerizable photosensitive layer containing a vinylcarbazole compound-derived monomer unit-containing acrylic polymer and/or a urethane-acrylic hybrid polymer, a step of image-wise exposing the negative-working lithographic printing plate precursor, and a step of developing the exposed negative-working lithographic printing plate precursor by means of a developer having a pH of 4 to 10, comprising (Component A) a compound represented by Formula (I) and/or Formula (II) below and (Component B) water, and having an organic solvent content of less than 5 mass %. The process does not comprise a washing step or a gumming step before or after the development step. | 07-24-2014 |
20140251172 | PROCESS FOR MAKING LITHOGRAPHIC PRINTING PLATE - It is an object of the present invention to provide a process for making a lithographic printing plate that enables a one-bath processable lithographic printing plate having excellent printing durability, ink laydown and resistance to staining during printing. | 09-11-2014 |
Patent application number | Description | Published |
20090075208 | PLATE MAKING METHOD OF LITHOGRAPHIC PRINTING PLATE PRECURSOR - A plate making method of a lithographic printing plate precursor includes: exposing a lithographic printing plate precursor including an image-recording layer and a support; and developing the exposed lithographic printing plate precursor to prepare a lithographic printing plate, wherein the developing includes, in the following order, (i) a process of removing an unexposed area of the image-recording layer with a gum solution, (ii) a process of washing with water and (iii) a process of oil-desensitizing a non-image area with a gum solution. | 03-19-2009 |
20090197205 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PRINTING METHOD - A lithographic printing plate precursor includes a support, an image-recording layer and a protective layer in this order, wherein the protective layer contains a stratiform compound and the image-recording layer contains a polymer compound having a phosphonium structure in a side chain. | 08-06-2009 |
20090246699 | PLATE-MAKING METHOD OF LITHOGRAPHIC PRINTING PLATE PRECURSOR - A plate-making method of a lithographic printing plate precursor including a support and an image forming layer, includes: (a) a step of preparing a lithographic printing plate precursor that contains, in the image forming layer, a polymer particle containing a repeating unit having a polyalkylene oxide segment in a side chain and a repeating unit having a cyano group in a side chain; (b) a step of imagewise exposing the lithographic printing plate precursor; and (C) a step of developing the exposed lithographic printing plate precursor with an aqueous solution containing at least one water-soluble polymer selected from the group consisting of gum arabic and starch, with an automatic processor equipped with a rubbing member. | 10-01-2009 |
20090246700 | PLATE-MAKING METHOD OF LITHOGRAPHIC PRINTING PLATE PRECURSOR - A plate-making method of a lithographic printing plate precursor including an image forming layer and a support, includes: (a) a step of preparing a lithographic printing plate precursor containing, in the image forming layer, an infrared absorber, a polymerization initiator, a polymerizable compound, a hydrophobic binder polymer and a compound represented by the formula (1) or (2) as defined herein; (b) a step of imagewise exposing the lithographic printing plate precursor; and (C) a step of developing the exposed lithographic printing plate precursor with an aqueous solution containing at least one water-soluble polymer selected from the group consisting of gum arabic and starch with an automatic processor equipped with a rubbing member. | 10-01-2009 |
20100071574 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PRINTING METHOD USING THE SAME - A lithographic printing plate precursor includes a support and an image-recording layer containing (A) an infrared absorbing agent, (B) a polymerization initiator, (C) a polymerizable compound and (D) a compound represented by the following formula (I): | 03-25-2010 |
20100075252 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD THEREOF - A lithographic printing plate precursor includes: a support; and an image-recording layer containing (A) an infrared absorbing agent, (B) a radical polymerization initiator, (C) a polymerizable compound and (D) an epoxy compound having a molecular weight of 1,000 or less. | 03-25-2010 |