Abstract:
It is an object of the present invention to provide that printing plate materials of the present invention exhibit excellent printing durability, less “out of color” registration, and improved printing image quality. Disclosed is a printing plate material possessing an image formation layer on one surface of a polyester support and not less than two backing layers on the other surface, wherein at least one of the backing layers is an electrically conductive layer, at least one of the backing layer is a layer containing at least one resin selected from polyester resin, acryl resin, acryl modified polyester resin and cellulose ester resin provided on the electrically conductive layer, and at least one of the backing layers contains an organic matting agent.
Abstract:
A lithographic printing plate precursor comprising a support and an image-recording layer containing at least one compound selected from the group consisting of a spiropyran compound and a spirooxazine compound, and an acid generator, and a lithographic printing method including a process of removing the unexposed area of the image-recording layer on a printing press.
Abstract:
A lithographic printing plate precursor comprising: a support; and an image recording layer comprising a polymerization initiator, a polymerizable compound and a polymer binder and being removable with at least one of a printing ink and a fountain solution, wherein the polymerizable compound and the polymer binder are defined so that a film made by the polymerizable compound and the polymer binder has an elastic modulus of 30 g/mm3 or less.
Abstract translation:一种平版印刷版原版,包括:载体; 以及包含聚合引发剂,可聚合化合物和聚合物粘合剂的图像记录层,并且可用至少一种印刷油墨和润版液除去,其中所述可聚合化合物和聚合物粘合剂被定义为使得由 聚合物粘合剂的弹性模量为30g / mm 3以下。
Abstract:
An image recording material comprises: (A) a polymerization initiator; (B) a polymerizable compound; and (C) a compound of generating, when heated, a chemical species of inhibiting a polymerization reaction.
Abstract:
A lithographic printing plate precursor capable of forming an image without undergoing alkali development, which comprises a hydrophilic support and a laser-sensitive photopolymerizing layer, wherein the photopolymerizing layer contains a polymer compound having at least one of an ether group, an ester group and an amido group in its molecule, particularly, in its side chain.
Abstract:
A lithographic printing plate precursor comprising a support having a hydrophilic surface having provided thereon an image-forming layer containing a hydrophobic high molecular compound having at least either a functional group represented by formula (1) or a functional group represented by formula (2): wherein X+ represents an iodonium ion, a sulfonium ion or a diazonium ion.
Abstract:
The present invention provides a lithographic printing plate precursor and a lithographic printing method using the lithographic printing plate precursor, which is capable of an image recording by infrared laser scanning and an on-press development and excellent in fine line reproducibility and press life while maintaining good on-press developing properties, the lithographic printing plate precursor comprising: a support; and an image recording layer capable of being removed by a printing ink and/or a fountain solution, in which the image recording layer comprises an infrared absorber and a graft polymer having a specific graft chain.
Abstract:
A photosensitive composition that includes a compound which generates a radical upon being heated or exposed to light; a polymer having on a side chain thereof a phenyl group substituted by a vinyl group; a monomer having in a molecule thereof at least two phenyl groups each substituted by a vinyl group; an infrared absorbent; and a dye having absorption maximum wavelength in a range from 500 to 700 nm, and an image recording material which has the photosensitive layer disposed on a support.
Abstract:
The present invention relates to a planographic printing plate precursor, in which an intermediate layer comprising a polymer having a lactone group and a recording layer are successively provided on or over a support. The polymer preferably has not only the lactone group but also an acidic group.
Abstract:
The planographic printing plate precursor of the invention includes a recording layer capable of forming an image upon irradiation with infrared rays, wherein the recording layer comprises (A) an alkali-soluble resin having, in a main chain, a structural unit containing at least one type of bond selected from an amide bond, urea bond, urethane bond and ester bond and having at least one type of acid group selected from a phenolic hydroxyl group, sulfonamide group and active imide group, and (B) an infrared absorbing agent. The invention provides a positive-working planographic printing plate precursor excellent in printing durability and chemical resistance.