Processing method of lithographic printing plate precursor
    21.
    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%。

    METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE PRECURSOR
    23.
    发明申请
    METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE PRECURSOR 审中-公开
    生产平版印刷机前驱体的方法

    公开(公告)号:US20120183901A1

    公开(公告)日:2012-07-19

    申请号:US13498839

    申请日:2010-07-27

    Abstract: To provide a method for producing a lithographic printing plate precursor excellent in development property and printing durability, which method restrains mixture of both layers at coating and drying an overcoat layer on an image-recording layer. A method for producing a polymerizable lithographic printing plate precursor including (a) a step of coating a coating solution of an image-recording layer containing (A) a sensitizing dye, (B) a radical polymerization initiator and (C) a radical polymerizable compound on a support, (b) a first drying step of supplying hot air to the image-recording layer, (c) a second drying step of supplying hot air and superheated vapor to the image-recording layer after the first drying step, (d) a step of coating an overcoat layer on the image-recording layer, and (e) a step of drying the overcoat layer.

    Abstract translation: 为了提供一种制备显影性能和印刷耐久性优异的平版印刷版原版的方法,该方法在图像记录层上涂覆和干燥涂层时抑制两层的混合。 一种聚合性平版印刷版原版的制造方法,其特征在于,包括(a)涂布含有(A)增感染料,(B)自由基聚合引发剂和(C)自由基聚合性化合物的图像记录层的涂布溶液的工序 (b)向图像记录层供给热空气的第一干燥步骤,(c)在第一干燥步骤之后,向图像记录层供给热空气和过热蒸气的第二干燥步骤,(d) )在图像记录层上涂覆外涂层的步骤,和(e)干燥外涂层的步骤。

    Method of processing on-press developable lithographic printing plate having overcoat
    25.
    发明授权
    Method of processing on-press developable lithographic printing plate having overcoat 有权
    具有外涂层的可印刷显影平版印刷版的加工方法

    公开(公告)号:US08148048B2

    公开(公告)日:2012-04-03

    申请号:US12030867

    申请日:2008-02-14

    Abstract: A method of processing an on-press developable lithographic printing plate involving the removal of the overcoat after laser imaging and before on-press development is described. The plate comprises a substrate, an on-press ink and/or fountain solution developable photosensitive layer, and an overcoat. The laser imaged plate is mechanically stripped off the overcoat, and then developed with ink and/or fountain solution on a lithographic press. Such a process allows the use of overcoat to achieve faster photospeed and improved durability of the plate without having various issues as related to overcoat such as contamination to the fountain solution, difficulty to remove of certain overcoat, and limited white light stability.

    Abstract translation: 描述了在激光成像之后和在印刷前发展之前处理包含去除外涂层的印刷中可印刷平版印刷版的方法。 板包括基底,印刷油墨和/或润版液可显影感光层和外涂层。 激光成像板从外涂层机械剥离,然后用油墨和/或润版液在平版印刷机上显影。 这种方法允许使用外涂层实现更快的感光速度并且改善板的耐久性,而不会出现与外涂层有关的各种问题,例如污染润版液,难以去除某些外涂层以及有限的白光稳定性。

    Method of treating on-press developable lithographic printing plate
    30.
    发明授权
    Method of treating on-press developable lithographic printing plate 有权
    处理印刷可印刷平版印刷版的方法

    公开(公告)号:US08087355B2

    公开(公告)日:2012-01-03

    申请号:US11825576

    申请日:2007-07-06

    Abstract: A method of treating an on-press developable lithographic printing plate with a 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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