公开(公告)号：US20150355548A1

公开(公告)日：2015-12-10

申请号：US14654598

申请日：2014-01-07

Applicant: AGFA GRAPHICS NV

Inventor： Peter HENDRIKX ,  Jan SINNESAEL ,  Roberto CARBONINI ,  Sam VERBRUGGHE

IPC: G03F7/32 ,  G03F7/20

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, including a support including a hydrophilic surface or a hydrophilic layer and, thereon, a light or heat sensitive coating including a photopolymerisable composition, b) processing the precursor, consecutively, with a first solution and a second solution, to remove the coating from the support in the non-printing areas, wherein the first and second solutions are provided by a cascade system, the second solution overflows into the first solution and the first solution overflows into a container to be further treated as waste,the 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, the first and second solutions are circulated respectively by a first and second liquid conveying system, the first solution present in the first liquid conveying system has a volume of at least Vmin and at most Vmax respectively defined by formula 1 and formula 2, Vmin=[A+(processing width/0.95 m)].liter   (formula 1) Vmax=[B+(processing width/0.95 m)].liter   (formula 2) wherein Vmin and Vmax represent respectively the minimum and maximum volume present in the first liquid conveying system, each expressed in liters, A and B represent a constant value of respectively 2 and 15, and the processing width represents the width, expressed in m, inside the processing unit, perpendicular to the processing direction.

Abstract translation: 一种制备平版印刷版的方法，包括以下步骤：a）将平版印刷版原版成像曝光，所述平版印刷版前体包括包含亲水表面或亲水层的载体，及其上包含可光聚合组合物的光或热敏涂层， b）连续地用第一溶液和第二溶液处理前体，以在非印刷区域中从载体上除去涂层，其中第一和第二溶液由级联体系提供，第二溶液溢出到 第一溶液和第一溶液溢出到容器中作为废物进一步处理，第二溶液通过以至少5ml / m 2处理的前体的速率加入补充溶液或补充溶液的混合物再生，最多100 ml / m 2处理的前体，第一和第二溶液分别通过第一和第二液体输送系统循环， 第一液体输送系统的体积具有至少分别由公式1和式2定义的Vmin和最多Vmax的体积，Vmin = [A +（加工宽度/0.95μm）]升（公式1）Vmax = [B +（ 处理宽度/0.95μm）]升（公式2）其中Vmin和Vmax分别表示在第一液体输送系统中存在的最小和最大体积，每一个以升表示，A和B分别表示2和15的常数值， 并且处理宽度表示处理单元内部垂直于处理方向的宽度（以m表示）。

公开(公告)号：US20150360459A1

公开(公告)日：2015-12-17

申请号：US14764624

申请日：2014-03-04

Applicant: AGFA GRAPHICS NV

Inventor： Tim DESMET ,  Philippe MORIAME ,  Peter Hendrikx ,  Jan SINNESAEL

IPC: B41C1/10

CPC classification number: B41C1/10 ,  G03F7/3071

Abstract: An apparatus and method for processing a lithographic printing plate include a plate transport for conveying the plate through the apparatus, a plate detector for locating the plate in the apparatus and for determining a plate width, one or more nozzles for depositing developer on the plate, wherein the one or more nozzles are arranged to shuttle over the plate or are arranged as a fixed array that spans at least the width of the plate. The plate detector is coupled to the one or more nozzles to selectively actuate the one or more nozzles that are positioned to deposit developer across the plate area, which results in a significant reduction of developer consumption. In preferred embodiments, the nozzles apply developer in accordance with the image on the plate, which enables an even lower consumption of developer.

Abstract translation: 一种用于处理平版印刷版的设备和方法包括：用于将板传送通过设备的板传送器，用于将板定位在设备中并用于确定板宽度的板检测器，用于在板上沉积显影剂的一个或多个喷嘴， 其中所述一个或多个喷嘴布置成穿过所述板或者被布置为固定的阵列，所述固定阵列至少跨越所述板的宽度。 板检测器耦合到一个或多个喷嘴以选择性地致动一个或多个喷嘴，其被定位成将显影剂沉积在板区域上，这导致显影剂消耗的显着降低。 在优选实施例中，喷嘴根据板上的图像施加显影剂，这使得显影剂的消耗更低。