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    • 9. 发明授权
    • Support for lithographic printing plate and presensitized plate
    • 支持平版印刷版和预印版
    • US07232645B2
    • 2007-06-19
    • US10784879
    • 2004-02-24
    • Hirokazu SawadaAkio Uesugi
    • Hirokazu SawadaAkio Uesugi
    • G03F7/09
    • B41N3/034C25F3/04
    • The support for a lithographic printing plate obtained by performing graining treatment including electrochemical graining treatment on an aluminum plate, the aluminum plate is an aluminum plate which contains Fe of 0.02 to 0.29 wt %, Si of 0.03 to 0.15 wt %, Cu of 0.020 to 0.040 wt % and Ti of 0.050 wt % or less and whose remaining portion is composed of Al and unavoidable impurities. In addition, the support for a lithographic printing plate where surface area ratio and steepness obtained from three-dimensional data found with an atomic force microscope (AFM) each satisfies the specified conditions is excellent in printing performance (press life, scum resistance, sensitivity and cleaner press life or the like) and handling property (scratch resistance, fatigue fracture strength or the like) when the lithographic printing plate is prepared.
    • 通过在铝板上进行包括电化学粗化处理的砂光处理而获得的平版印刷版的支撑体,铝板是含有0.02〜0.29重量%的Fe,0.03〜0.15重量%的Si,0.020〜 0.040重量%,Ti为0.050重量%以下,其余部分为Al和不可避免的杂质。 此外,由原子力显微镜(AFM)发现的三维数据得到的表面积比和陡度均满足规定条件的平版印刷版的印刷性能(印刷寿命,浮渣电阻,灵敏度, 更清洁的压机寿命等)和制备平版印刷版时的处理性(耐擦伤性,疲劳断裂强度等)。