Processing method of lithographic printing plate precursor
    5.
    发明授权
    Processing method of lithographic printing plate precursor 有权
    平版印刷版前体的加工方法

    公开(公告)号:US08257913B2

    公开(公告)日:2012-09-04

    申请号:US12239035

    申请日:2008-09-26

    Abstract: A processing method of a lithographic printing plate precursor includes: exposing imagewise a lithographic printing plate precursor comprising a support on a surface of which at least one of: a hydrophilizing treatment; and an undercoat layer has been provided and an image-recording layer, to cure an exposed area of the image-recording layer; and undergoing developing processing with an aqueous solution having pH of from 2 to 10, wherein the aqueous solution comprises an amphoteric surfactant and an anionic surfactant selected from an anionic surfactant having an aliphatic chain and a total number of carbon atoms included in the aliphatic chain of 6 or more and an anionic surfactant having an aromatic ring and a total number of carbon atoms of 12 or more, and a content of the anionic surfactant is from 0.1 to 3.3% by weight of the aqueous solution.

    Abstract translation: 平版印刷版原版的加工方法包括:使表面上具有以下至少一种的支撑体的平版印刷版原版成像曝光:亲水化处理; 并提供底涂层和图像记录层,以固化图像记录层的曝光区域; 并用pH为2〜10的水溶液进行显影处理,其中所述水溶液包含两性表面活性剂和阴离子表面活性剂,所述阴离子表面活性剂选自阴离子表面活性剂,所述阴离子表面活性剂选自具有脂族链的脂族链和包含在脂族链中的脂族链总数 6以上的阴离子表面活性剂和具有芳香环,总碳原子数为12以上的阴离子表面活性剂,阴离子表面活性剂的含量为水溶液的0.1〜3.3重量%。

    Aqueous treatment of on-press developable lithographic printing plate
    8.
    发明授权
    Aqueous treatment of on-press developable lithographic printing plate 有权
    印刷可印刷平版印刷版的水处理

    公开(公告)号:US08071274B2

    公开(公告)日:2011-12-06

    申请号:US12168058

    申请日:2008-07-03

    Abstract: A method of treating an on-press developable lithographic printing plate with an aqueous treating solution after imagewise exposure and before on-press development is described. The plate comprises on a substrate a photosensitive layer developable with ink and/or fountain solution and capable of hardening upon exposure to a radiation. The plate is imagewise exposed with a radiation, overall treated with a treating solution to cause at least one chemical or physical change in the photosensitive layer or on the substrate surface, and then on-press developed with ink and/or fountain solution. Such a treatment allows improvement on the performance of the imagewise exposed plate by, for example, improving the white light stability, forming visible imaging, increasing the hydrophilicity of the substrate, or increasing the developability of the photosensitive layer.

    Abstract translation: 描述了在成像曝光之后和在印刷前发展之前用水处理溶液处理印刷可印刷的平版印刷版的方法。 该板在基板上包括可用油墨和/或润版液显影的感光层,并且能够在暴露于辐射时硬化。 用辐射对板进行成像曝光,总体上用处理溶液处理以在感光层或基材表面上引起至少一种化学或物理变化,然后用油墨和/或润版液进行压制显影。 这样的处理可以通过例如改善白光稳定性,形成可视成像,增加基底的亲水性或提高感光层的显影性来改善成像曝光的印版的性能。

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