公开(公告)号：EP2755088A1

公开(公告)日：2014-07-16

申请号：EP13150972.1

申请日：2013-01-11

Applicant: Agfa Graphics N.V.

Inventor： Hendrikx, Peter ,  Sinnesael, Jan ,  Carbonini, Roberto ,  Verbrugghe, Sam

IPC: G03F7/30

CPC classification number: G03F7/32 ,  G03F7/20 ,  G03F7/3042 ,  G03F7/3064 ,  G03F7/3071

Abstract: 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.

Abstract translation: 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。

公开(公告)号：EP2290447A1

公开(公告)日：2011-03-02

申请号：EP09168585.9

申请日：2009-08-25

Applicant: Agfa Graphics N.V.

Inventor： Hendrikx, Peter ,  Williamson, Alexander ,  Sinnesael, Jan ,  Carbonini, Roberto

IPC: G03F7/32 ,  G03F7/40 ,  B41N3/08

CPC classification number: G03F7/322 ,  G03F7/40

Abstract: A set comprising an aqueous clean-out solution and an aqueous preservation solution, said set being suitable for developing a lithographic printing plate precursor, both said solutions having a pH between 2 and 10, characterized in that the clean-out solution has an aggressiveness towards an image area of said developed precursor as defined in the description of three or more, while the preservation solution has such an aggressiveness of less than three.

Abstract translation: 一种包含水性清除溶液和水性保存溶液的组合物，所述组合物适于显影平版印刷版原版，所述溶液的pH为2至10，其特征在于，所述清除溶液具有朝向 所述显影前体的图像区域，如三个或更多个描述中所定义，而保存溶液具有小于3的侵蚀性。