摘要:
An on-press development or non-processing (non-development) type lithographic printing plate precursor capable of giving a printout image having a large lightness difference, and a lithographic printing method using this lithographic printing plate precursor are provided, a lithographic printing plate precursor comprising a support and a photosensitive-thermosensitive layer capable of recording an image by infrared laser exposure, the lithographic printing plate precursor being capable of performing a printing by loading on a printing press without passing through a development processing step after recording an image, or by recording an image after loading on a printing press, wherein said photosensitive-thermosensitive layer comprises (1) an infrared absorbent and (2) a discoloring agent or discoloration system capable of generating a color change upon exposure; and the lithographic printing method performing a printing using the above-described lithographic printing plate precursor.
摘要:
The positive-type planographic printing plate precursor of the invention comprises a support and a recording layer provided on the support, wherein the recording layer contains: a polymer compound having (a) a monomer represented by the following formula (1), (b) a monomer having an aliphatic group having 7 or more carbon atoms and having a bridge bond, and (c) monomer having an acid group as a copolymerization component; and an infrared-ray absorbing agent. The positive-type planographic printing plate precursor of the invention achieves both excellent developability and excellent inking property, as well as better image-forming property and a clear image. wherein in the formula (1), Rf is a substituent containing a fluoroalkyl group or a perfluoroalkyl group having 9 or more fluorine atoms, n represents 1 or 2, and R1 represents hydrogen or a methyl group.
摘要:
A process for producing an overprint is provided that includes a step of preparing a printed material printed on a printing substrate, a step of coating the printed material with a photocurable composition, and a step of photocuring the photocurable composition, the photocurable composition comprising (I) a fluorine-containing polymer having an ethylenically unsaturated group, (II) an ethylenically unsaturated compound, and (III) a photopolymerization initiator. There are also provided an overprint produced by the production process, and the photocurable composition.
摘要:
A photocurable coating composition is provided that includes (A) a fluorine-containing polymer having a cationically polymerizable group, (B) a cationic photopolymerization initiator, and (C) a cationically polymerizable compound. There is also provided a process for producing an overprint, the process including a step of coating a printed material with a photocurable composition and a step of photocuring the photocurable composition to form an overprint layer, the photocurable composition including (A) a fluorine-containing polymer having a cationically polymerizable group, (B) a cationic photopolymerization initiator, and (C) a cationically polymerizable compound.
摘要:
A lithographic printing plate precursor capable of being subjected to on-press development by supplying at least one of printing ink and dampening water and including a support, an image-recording layer and optionally an undercoat layer between the support and the image-recording layer, wherein at least one of the undercoat layer and the image-recording layer contains at least one of a compound represented by the formula (1A) as defined herein and a compound including a structure represented by the formula (1B) as defined herein.
摘要:
An on-press development or non-processing (non-development) type lithographic printing plate precursor capable of giving a printout image having a large lightness difference, and a lithographic printing method using this lithographic printing plate precursor are provided, a lithographic printing plate precursor comprising a support and a photosensitive-thermosensitive layer capable of recording an image by infrared laser exposure, the lithographic printing plate precursor being capable of performing a printing by loading on a printing press without passing through a development processing step after recording an image, or by recording an image after loading on a printing press, wherein said photosensitive-thermosensitive layer comprises (1) an infrared absorbent and (2) a discoloring agent or discoloration system capable of generating a color change upon exposure; and the lithographic printing method performing a printing using the above-described lithographic printing plate precursor.
摘要:
An ink composition for ink jet recording comprising dispersion medium (A) and nonaqueous dispersion resin particles (B) having a volume average particle diameter 0.8 μm or more, and a method for producing a planographic printing plate using the ink composition for ink jet recording are provided.
摘要:
A lithographic printing process which comprises the steps of: imagewise exposing to infrared light a presensitized lithographic plate which comprises a hydrophilic support and a removable image-forming layer containing an infrared absorbing agent having the absorption maximum within an infrared region and a dye precursor having substantially no absorption within a visible region to change the dye precursor to a visible dye having an absorption within a visible region within the exposed area, and to make the image-forming layer irremovable within the exposed area; removing the image-forming layer within the unexposed area of the lithographic plate mounted on a cylinder of a printing press; and then printing an image with the lithographic plate mounted on the cylinder of the printing press. The other processes are also disclosed.
摘要:
A lithographic printing plate precursor capable of being subjected to on-press development by supplying at least one of printing ink and dampening water and including a support, an image-recording layer and optionally an undercoat layer between the support and the image-recording layer, wherein at least one of the undercoat layer and the image-recording layer contains at least one of a compound represented by the formula (1A) as defined herein and a compound including a structure represented by the formula (1B) as defined herein.
摘要:
A planographic printing plate precursor according to the invention includes: a support; and a recording layer disposed on the support and containing an alkali-soluble polymer compound and an infrared absorber, wherein a contact angle at a surface of the planographic printing plate precursor is 70° or less in a case of oil in water and 140° or more in a case of water in oil. Examples of a method for achieving such surface physical properties include inclusion, in a recording layer, of a polymer having a lipophilic functional group on a side chain thereof. According to the invention, a planographic printing plate precursor for direct print making can be obtained, which precursor improves the image forming property of the recording layer using an alkali-soluble polymer compound, is excellent in the lipophilicity of an image portion and the removing property of a non-image portion, and produces printed matters of high quality with excellent reproducibility even in the image formation with an FM screen or high number of output lines.