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    Original plate for lithographic printing plate, and method for production of lithographic printing plate using the same
    21.
    发明专利
    Original plate for lithographic printing plate, and method for production of lithographic printing plate using the same 未知

    公开(公告)号：AU2009229796A2

    公开(公告)日：2010-10-28

    申请号：AU2009229796

    申请日：2009-03-27

    Applicant: FUJIFILM CORP

    Inventor： ARIMURA KEISUKE ,  TAGUCHI YOSHINORI ,  MIKOSHIBA HISASHI ,  OOHASHI HIDEKAZU ,  INNO TOSHIFUMI

    IPC: G03F7/033 ,  G03F7/00 ,  G03F7/32

    Abstract: Provided are, as a lithographic printing plate precursor that enables good development with a developer having a pH from 2 to 10 and is excellent in runlength and stain resistance and a production process of a lithographic printing plate using the precursor, a lithographic printing plate precursor whose photosensitive layer contains the following components (A), (B), and (C): (A) a copolymer having a repeating unit of the formula (1) and at least one of a repeating unit of the formula (2) and a repeating unit of the formula (3): wherein each of A and B independently represents a hetero atom, each of R and R 1 to R 9 represents a monovalent substituent, L represents a divalent linking group, X represents a hydroxyl group, a monovalent group containing an acid group, an alkyleneoxy group, an amide group, or an ether group, an amino group, an ammonium group, or a salt obtained by neutralizing an acid group, and L 0 represents a single bond or divalent hydrocarbon group, (B) a compound having an ethylenically unsaturated bond, and (c) a polymerization initiator; and a production process of a lithographic printing plate by using the precursor.

    22.
    发明专利
    未知

    公开(公告)号：AT443280T

    公开(公告)日：2009-10-15

    申请号：AT06015456

    申请日：2006-07-25

    Applicant: FUJIFILM CORP

    Inventor： INNO TOSHIFUMI

    IPC: G03F7/031 ,  G03F7/033 ,  G03F7/035 ,  G03F7/30

    Abstract: The present invention provides method for preparing a lithographic printing plate comprising: (i) exposing to laser light having a wavelength of 350-450 nm a lithographic printing plate precursor comprising a hydrophilic support; a photosensitive layer containing (A) a sensitising dye having a maximum absorption wavelength of 350-450 nm, (B) a hexaarylbiimidazole compound, (C) a polymerizable compound, (D) a hydrophobic binder polymer having a crosslinkable functional group in a side chain, and (E) a chain transfer agent; and a protective layer in this order; and (ii) rubbing a surface of the exposed lithographic printing plate precursor with a rubbing member in an automatic processor in the presence of a developer having a pH of 2-10 to remove the protective layer and unexposed areas of the photosensitive layer. A lithographic printing plate precursor as defined above is also provided, wherein the hydrophobic binder polymer has an acid value of 0.3 meq/g or less.

    26.
    发明专利
    未知

    公开(公告)号：DE60312424T2

    公开(公告)日：2007-11-29

    申请号：DE60312424

    申请日：2003-04-24

    Applicant: FUJIFILM CORP

    Inventor： INNO TOSHIFUMI

    IPC: B41C1/10

    Abstract: A method for preparation of a lithographic printing plate, which comprises the steps of: imagewise recording on a lithographic printing plate precursor comprising a support having a hydrophilic surface and a thermosensitive layer, the thermosensitive layer comprising at least one of polymer particles and a microcapsule encapsulating an oleophilic compound therein; and rubbing the printing plate precursor by a rubbing member in the presence of a processing liquid to remove the thermosensitive layer of non-image portions.

    27.
    发明专利
    未知

    公开(公告)号：DE602004008532D1

    公开(公告)日：2007-10-11

    申请号：DE602004008532

    申请日：2004-06-02

    Applicant: FUJIFILM CORP

    Inventor： OSHIMA YASUHITO ,  INNO TOSHIFUMI ,  MITSUMOTO TOMOYOSHI ,  FUJIMAKI KAZUHIRO ,  SHIMADA KAZUTO ,  MAKINO NAONORI

    IPC: B41C1/10

    Abstract: A lithographic printing process comprises the steps of: imagewise exposing to infrared light a presensitized lithographic plate which comprises a hydrophilic support and an image-forming layer containing an infrared absorbing agent, a polymerization initiator and a binder polymer to polymerize the polymerizable compound within the exposed area; removing the image-forming layer within the unexposed area while mounting the lithographic plate on a cylinder of a printing press; and then printing with the lithographic plate while mounting the lithographic plate on the cylinder of the printing press. The polymerization initiator is a salt of an anion with a sulfonium ion. According to the present invention, a specific anion or a specific sulfonium ion is used in the polymerization initiator.

    Method for preparing a planographic printing plate and developer solution for master planographic printing plate
    30.
    发明专利
    Method for preparing a planographic printing plate and developer solution for master planographic printing plate 未知

    公开(公告)号：AU2011221304B2

    公开(公告)日：2015-04-30

    申请号：AU2011221304

    申请日：2011-02-22

    Applicant: FUJIFILM CORP

    Inventor： INNO TOSHIFUMI

    IPC: G03F7/32 ,  G03F7/00 ,  G03F7/027 ,  G03F7/031 ,  G03F7/035

    Abstract: Disclosed is a method for preparing a planographic printing plate in which a master planographic printing plate which has both a photosensitive layer (which contains (A) a polymerization initiator, (B) a polymerizable compound, (C) a sensitizing dye (D) and a binder polymer) and a protective layer, in that order, is laser-exposed on a hydrophilic support body, and thereafter the protective layer and the photosensitive layer of the unexposed portion are removed in the presence of a developer solution. By means of the method for preparing a planographic printing plate in which the aforementioned developer solution has a pH greater than or equal to 2 but less than 10 and contains a zwitterionic surfactant and a nonionic surfactant having an alkylene oxide chain, a planographic printing plate can be obtained which can achieve excellent development, has good printing durability, does not produce print stains, and makes possible a one-liquid-one-step simple process not requiring a washing step.

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