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    • 3. 发明公开
    • Method of making a lithographic printing plate
    • Verfahren zur Herstellung einer Flachdruckplatte
    • EP2772805A1
    • 2014-09-03
    • EP14163143.2
    • 2005-11-18
    • AGFA GRAPHICS NV
    • Van Damme, Marc
    • G03F7/20G03F7/32G03F7/30
    • G03F7/32G03F7/2055G03F7/3042G03F7/3057
    • A method of making a lithographic printing plate comprising the steps of:
      a) providing a lithographic printing plate precursor comprising
      (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer,
      (ii) a coating on said support, comprising a photopolymerizable layer and, optionally, an intermediate layer between the photopolymerizable layer and the support,

      wherein said photopolymerizable layer comprises a polymerizable compound, a polymerization initiator and a binder,
      b) image-wise exposing said coating in a plate setter,
      c) heating the precursor in a preheating unit within a time period of less than 10 minutes after step (b),
      d) treating the precursor in a gumming station, comprising at least one gumming unit, whereby a gum solution is applied to the precursor, thereby removing non-exposed areas of the photopolymerizable layer from the support and gumming the plate in a single step.
    • 一种制备平版印刷版的方法,包括以下步骤:a)提供平版印刷版前体,其包含(i)具有亲水表面的或具有亲水层的载体,(ii)所述载体上的涂层,包括 可光聚合层和可选择地在可光聚合层和载体之间的中间层,其中所述可光聚合层包含可聚合化合物,聚合引发剂和粘合剂,b)在平版印刷机中成像曝光所述涂层,c)加热 预处理单元中的前体在步骤(b)后少于10分钟的时间内,d)在涂胶站中处理前体,其包含至少一个上胶单元,由此将胶溶液施加到前体上,由此除去 可光聚合层的非曝光区域和支撑体,并在一个步骤中涂覆该板。
    • 4. 发明公开
    • Method of making a lithographic printing plate
    • 制作平版印刷版的方法
    • EP2755088A1
    • 2014-07-16
    • EP13150972.1
    • 2013-01-11
    • Agfa Graphics N.V.
    • Hendrikx, PeterSinnesael, JanCarbonini, RobertoVerbrugghe, Sam
    • G03F7/30
    • G03F7/32G03F7/20G03F7/3042G03F7/3064G03F7/3071
    • A method of making a lithographic printing plate comprising the steps of:
      a) image-wise exposing a lithographic printing plate precursor, comprising a support having a hydrophilic surface or which is provided with a hydrophilic layer and, thereon, a light or heat sensitive coating comprising a photopolymerisable composition,
      b) processing said precursor with a first solution, consecutively with a second solution, thereby removing the coating from the support in the non-printing areas,
      wherein said first and second solutions are provided by a cascade system, wherein said second solution overflows into said first solution and said first solution overflows into a container to be further treated as waste,
      wherein said second solution is regenerated by adding a replenishing solution or a mixture of replenishing solutions at a rate of at least 5 ml/m2 of treated precursor and at most 100 ml/m2 of treated precursor,
      wherein said first and second solutions are circulated respectively by a first and second liquid conveying system,
      wherein the first solution present in said first liquid conveying system has a volume of at least Vmin and at most Vmax respectively defined by formula 1 and formula 2,


      wherein Vmin and Vmax represent respectively the minimum and maximum volume present in said first liquid conveying system, each of them expressed in liter, wherein A and B represents a constant value of respectively 2 and 15, and wherein said processing width represents the width, expressed in m, inside the processing unit, perpendicular to the processing direction, which is available for processing plate precursors in a uniform way across their width.
    • 一种制造平版印刷版的方法,其包括以下步骤:a)将平版印刷版前体成像曝光,所述平版印刷版前体包含具有亲水表面的载体,或具有亲水层并且在其上具有光敏或热敏涂层 其包含可光聚合的组合物,b)用第一溶液连续用第二溶液处理所述前体,由此在非印刷区域中从载体上除去涂层,其中所述第一和第二溶液由级联系统提供,其中所述 第二溶液溢流到所述第一溶液中,并且所述第一溶液溢流到容器中以作为废物进一步处理,其中所述第二溶液通过以至少5ml / m 2的流速添加补充溶液或补充溶液的混合物而再生 经处理的前体和至多100ml / m 2的经处理的前体,其中所述第一和第二溶液分别通过冷冻循环 t和第二液体输送系统,其中存在于所述第一液体输送系统中的第一溶液具有分别由式1和式2定义的至少Vmin和至多Vmax的体积,其中Vmin和Vmax分别表示最小和最大体积存在量 在所述第一液体输送系统中,它们中的每一个均以升为单位表示,其中A和B分别表示2和15的恒定值,并且其中所述处理宽度表示处理单元内与处理单元垂直的宽度,以m表示 方向,可用于在其宽度上以统一的方式处理印版前体。
    • 10. 发明公开
    • Method for development processing of presensitized plates
    • Entwicklungsverfahrenfürvorsensibilisierte Druckplatten。
    • EP0347245A2
    • 1989-12-20
    • EP89306131.7
    • 1989-06-16
    • FUJI PHOTO FILM CO., LTD.
    • Kunichika, Kenji c/o FUJI PHOTO FILM CO., LTD.Ohba, Hisao c/o FUJI PHOTO FILM CO., LTD.Nishioka, Akira c/o FUJI PHOTO FILM CO., LTD.Matsumoto, Hiroshi c/o FUJI PHOTO FILM CO., LTD.Akiyama, Keiji c/o FUJI PHOTO FILM CO., LTD.
    • G03F7/30
    • G03F7/3042G03F7/322
    • Exposed presensitized plates are treated with an alkaline developer and a replenisher therefor utilizing a conveying type automatic developing maching having a part for dipping and developing the presensitized plate, the machine being provided with a plate for preventing contact between the developper and air. The method is characterized in that the developer and the replenisher therefor are aqueous solutions of an alkali metal silicate and that the ratio, [ SiO₂ ] / [M₂O] (wherein [SiO₂] is the molar concentration of SiO₂ and [M₂O] is that of an alkali metal oxide M₂O), of the replenisher ranges from 0.6 to 1.5. Although a developer mainly composed of a silicate is used in the method, the method makes it possible to stably and rapidly continue the development processing for a long time period, the contamination of an automatic developing machine is very low and washing operations can be easily performed. Moreover, there are not observed deposition of feculences thereon during the processing. In addition, the method also makes it possible to reduce the amount of the replenisher to be used. Thus lithographic printing plates having constant quality can be obtained and the running cost can be greatly reduced.
    • 使用具有用于浸渍和显影未敏化板的部分的输送型自动显影加工,用碱性显影剂和补充剂处理曝光的预敏化板,该机器设置有用于防止显影剂和空气接触的板。 该方法的特征在于,显影剂及其补充剂为碱金属硅酸盐的水溶液,[SiO 2] / [M 2 O](其中[SiO 2]为SiO 2和[M 2 O]的摩尔浓度的比例为 补充剂的碱金属氧化物M 2 O)为0.6〜1.5。 虽然在该方法中使用主要由硅酸盐组成的显影剂,但是该方法使得可以长时间稳定且快速地继续显影处理,自动显影机的污染非常低,并且可以容易地进行洗涤操作 。 此外,在处理期间没有观察到其上的硬度沉积。 此外,该方法还可以减少补充液的使用量。 因此,可以获得具有恒定质量的平版印刷版,并且可以大大降低运行成本。