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    • 7. 发明申请
    • ABLATION IMAGEABLE LITHOGRAPHIC PRINTING PLATE
    • 可缩放图像印刷版
    • US20140322646A1
    • 2014-10-30
    • US13870056
    • 2013-04-25
    • Moshe NakashDaniel Weizman
    • Moshe NakashDaniel Weizman
    • G03F7/038
    • B41C1/1016B41C1/1033B41C2201/04B41C2201/14B41C2210/02B41C2210/24
    • A positive-working, ablation-imagable lithographic printing plate precursor can be imaged and used for lithographic printing without wet processing. This precursor has a sulfuric acid or phosphoric acid anodized aluminum-containing substrate, a crosslinked hydrophilic inner layer comprising a crosslinked polymer derived by using a crosslinking agent that comprises at least two aldehyde groups, and an acidic compound. Over the crosslinked hydrophilic inner layer is an oleophilic outer layer comprising an infrared radiation absorber and an oleophilic polymer. The precursor also has a copolymer comprising randomly recurring units derived from each of a (meth)acrylamide and vinyl phosphonic acid. This copolymer is present either within the crosslinked hydrophilic inner layer, as part of a different copolymer layer between the crosslinked hydrophilic inner layer and the substrate, or in both places.
    • 可以将正性,消融可见的平版印刷版原版成像并用于平版印刷,而无需湿法处理。 该前体具有硫酸或磷酸阳极氧化的含铝基材,交联的亲水性内层,其包含通过使用包含至少两个醛基的交联剂衍生的交联聚合物和酸性化合物。 在交联的亲水内层之上是含有红外辐射吸收剂和亲油聚合物的亲油外层。 前体还具有包含由(甲基)丙烯酰胺和乙烯基膦酸各自衍生的随机重复单元的共聚物。 该共聚物存在于交联的亲水性内层内,作为交联的亲水性内层和基材之间的不同共聚物层的一部分,或两者都存在。