3.
    发明专利
    未知

    公开(公告)号:DE602005007784D1

    公开(公告)日:2008-08-14

    申请号:DE602005007784

    申请日:2005-03-10

    Applicant: FUJIFILM CORP

    Inventor: NAGASHIMA AKIRA

    Abstract: A planographic printing plate precursor comprises: a support; and a recording layer disposed on the support, the recording layer comprising a lower layer and an upper layer disposed on the lower layer, wherein the lower layer contains a resin having in a main chain structure a phenol skeleton and a urea bond, the upper layer contains a water-insoluble alkali-soluble resin and an infrared absorber, and the solubility of the upper layer in an aqueous alkali solution is increased by exposure. The planographic printing plate precursor can be produced directly through scanning exposure based on digital signals. It is superior in reproducibility of highly fine images and also superior in printing durability and chemical resistance of small-area image areas such as halftone dots and thin lines.

    4.
    发明专利
    未知

    公开(公告)号:AT468550T

    公开(公告)日:2010-06-15

    申请号:AT01106429

    申请日:2001-03-22

    Applicant: FUJIFILM CORP

    Abstract: The present invention relates to a positiive-working presensitized plate useful for preparing a lithographic printing plate comprising a positive-working photosensitive composition comprising at least one ester of 1,2-naphthoquinone-2-diazide-5-sulfonic acid, at least one ester of 1,2-naphthoquinone-2-diazide-4-sulfonic acid, and at least one polymer which is insoluble in water and soluble in an aqueous alkaline solution and which comprises at least one group or bond selected from sulfonamide group, urea bond or urethane bond. A lithographic printing plate prepared from the presensitized plate of the present invention shows improvement of chemical-resistance and printing durability, and good sensitivity, coupling property, adaptability to ball-point pen, shelf stability, and stability of sensitivity with time after exposure.

    6.
    发明专利
    未知

    公开(公告)号:DE602006001336D1

    公开(公告)日:2008-07-10

    申请号:DE602006001336

    申请日:2006-09-22

    Applicant: FUJIFILM CORP

    Inventor: NAGASHIMA AKIRA

    Abstract: According to an aspect of the invention, there is provided an infrared-sensitive planographic printing plate precursor including: a support; a recording layer on one surface of the support, which recording layer contains a water-insoluble and alkali-soluble resin and an infrared absorber, and is capable of forming an image by infrared irradiation; and an organic polymer layer on the other surface of the support, which organic polymer layer is formed by coating and drying a solution that contains at least one organic polymer selected from epoxy resins and resole resins, and a crosslinking agent.

    8.
    发明专利
    未知

    公开(公告)号:DE602005002324T2

    公开(公告)日:2008-06-19

    申请号:DE602005002324

    申请日:2005-09-26

    Applicant: FUJIFILM CORP

    Inventor: NAGASHIMA AKIRA

    Abstract: The present invention provides a planographic printing plate precursor including a support and a positive recording layer formed on the support and containing: (A) a polymer having a structural unit represented by the following general formula (1), (B) a photo-thermal converting agent, and (C) an amino compound having a methylol group or an alkoxymethyl group; and a positive recording layer whose solubility in an alkaline developer is improved by exposure to light or by heating. In general formula (1), R 1 represents an alkyl group or a cyclic group, x represents 0 or 1, and A represents a bivalent bonding group. According to the invention, a positive planographic printing plate precursor for use with infrared lasers having excellent chemical resistance and wide image development latitude can be obtained.

    9.
    发明专利
    未知

    公开(公告)号:AT372217T

    公开(公告)日:2007-09-15

    申请号:AT05020922

    申请日:2005-09-26

    Applicant: FUJIFILM CORP

    Inventor: NAGASHIMA AKIRA

    Abstract: The present invention provides a planographic printing plate precursor including a support and a positive recording layer formed on the support and containing: (A) a polymer having a structural unit represented by the following general formula (1), (B) a photo-thermal converting agent, and (C) an amino compound having a methylol group or an alkoxymethyl group; and a positive recording layer whose solubility in an alkaline developer is improved by exposure to light or by heating. In general formula (1), R 1 represents an alkyl group or a cyclic group, x represents 0 or 1, and A represents a bivalent bonding group. According to the invention, a positive planographic printing plate precursor for use with infrared lasers having excellent chemical resistance and wide image development latitude can be obtained.

    10.
    发明专利
    未知

    公开(公告)号:DE69941227D1

    公开(公告)日:2009-09-17

    申请号:DE69941227

    申请日:1999-04-06

    Applicant: FUJIFILM CORP

    Abstract: The present invention relates to(A) a photosensitive resin composition containing a high molecular compound having at least three specific constituting components as copolymer components, whereof the first one comprises a perfluoroalkyl group, and an o-quiononediazide compound; and(B) a photosensitive lithographic printing plate comprising a support having coated thereon a photosensitive layer containing the following components (a), (b) and (c),(a) an o-naphtoquinonediazide compound,(b) a resin soluble in an alkaline aqueous solution, and(c) a polymer having a (meth)acrylate monomer having two or three perfluoroalkyl groups having from 3 to 20 carbon atoms in the molecule as a polymer component.

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