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    A lithographic printing plate precursor
    1.
    发明公开
    A lithographic printing plate precursor 有权
    Lithographiedruckplattenvorläufer

    公开(公告)号：EP2366545A1

    公开(公告)日：2011-09-21

    申请号：EP10157030.7

    申请日：2010-03-19

    Applicant: Agfa Graphics N.V.

    Inventor： Van Aert, Hubertus ,  Janssens, Heidi ,  Lingier, Stefaan

    IPC: B41C1/10

    CPC classification number: B41C1/1008 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    Abstract: A lithographic printing plate precursor comprising a support having a hydrophilic surface or which is provided with a hydrophilic layer, and a coating thereon, said coating comprising an IR absorbing agent and a polyvinylacetal binder, said polyvinylacetal comprising an acetal group having an acetal carbon atom substituted by a phenolic group, a naphtol group or an antracenol group, a second recurring unit comprising an acetal group having an acetal carbon atom substituted by an alkyl group having a hydrocarbon chain containing 1, 2 or 3 carbon atoms, and a third recurring unit comprising an acetal group having an acetal carbon atom substituted by an alkyl group having a hydrocarbon chain containing 1, 2 or 3 carbon atoms wherein the alkyl group of the acetal group of the third recurring unit is different from the alkyl group of the acetal group of the second recurring unit.
    The precursor exhibits an improved sensitivity on exposure and the stability against daylight exposure is further improved.

    Abstract translation: 一种平版印刷版前体，其包括具有亲水性表面的或具有亲水层的载体及其上的涂层，所述涂层包含IR吸收剂和聚乙烯醇缩乙醛粘合剂，所述聚乙烯醇缩醛包括具有缩醛碳原子取代的缩醛基 通过酚基，萘酚基或antacacolol基，第二重复单元包括具有由具有1,2或3个碳原子的烃链的烷基取代的缩醛碳原子的缩醛基和第三重复单元，其包含 具有被具有碳原子数为2或3的烃链的烷基取代的缩醛碳原子的缩醛基，其中第三重复单元的缩醛基的烷基不同于第二重复单元的缩醛基的烷基 第二个重复单位。 该前体对曝光具有改善的敏感性，并且进一步提高了对日光暴露的稳定性。

    Negative working, heat-sensitive lithographic printing plate precursor
    4.
    发明公开
    Negative working, heat-sensitive lithographic printing plate precursor 有权
    Negativ arbeitender，hitzeempfindlicherLithographiedruckformvorläufer

    公开(公告)号：EP1834764A1

    公开(公告)日：2007-09-19

    申请号：EP06111322.1

    申请日：2006-03-17

    Applicant: Agfa Graphics N.V.

    Inventor： Vermeersch, Joan ,  Kokkelenberg, Dirk ,  Van Aert, Hubertus

    IPC: B41C1/10 ,  B41M5/36

    CPC classification number: B41C1/1025 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/08 ,  B41C2210/22 ,  B41C2210/24 ,  B41M5/366

    Abstract: A heat-sensitive negative-working lithographic printing plate precursor comprising a support having a hydrophilic surface or which is provided with a hydrophilic layer and a coating provided thereon, said coating comprising an image-recording layer which comprises hydrophobic thermoplastic polymer particles characterized in that said hydrophobic thermoplastic polymer particles comprise a polyester and have an average particle diameter from 18 to 50 nm.

    Abstract translation: 一种热敏负性平版印刷版原版，其包括具有亲水性表面的支持体，或者设置有亲水层和设置在其上的涂层，所述涂层包含图像记录层，该图像记录层包括疏水性热塑性聚合物颗粒，其特征在于所述 疏水性热塑性聚合物粒子由聚酯构成，平均粒径为18〜50nm。

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