公开(公告)号：US20160214370A1

公开(公告)日：2016-07-28

申请号：US14917957

申请日：2014-09-29

Applicant: AGFA GRAPHICS NV

Inventor： Peter HENDRIKX ,  Paul CALLANT ,  Marin STEENACKERS ,  Sam VERBRUGGHE

IPC: B41C1/10

CPC classification number: B41C1/1091 ,  B41C1/1008 ,  B41C1/1025 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/08 ,  B41C2210/12 ,  B41C2210/22 ,  B41M5/28 ,  G03F7/105 ,  G03F7/322

Abstract: A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating containing a colorant precursor to form a lithographic image consisting of printing areas and non-printing areas, b) developing the plate precursor to remove the coating in the non-printing areas from the support, and c) drying the plate precursor, and d) subjecting the plate precursor to heat or radiation to induce a colour change of the coating in the printing areas, wherein before step b) the coating in the non-printing areas and the support are characterised by a CIE 1976 colour difference ΔE1 which is 5.0 or less, and after step d) the CIE 1976 colour difference ΔE2 between the coating in the printing areas and the non-printing areas is more than 6.8.

Abstract translation: 制备平版印刷版的方法包括以下步骤：a）将包含亲水性载体的平版印刷版原版和包含着色剂前体的涂层成像曝光以形成由印刷区域和非印刷区域组成的平版印刷图像，b ）显影板前体以从支撑体移除非印刷区域中的涂层，以及c）干燥板前体，以及d）使板前体受热或辐射使印刷区域中的涂层发生颜色变化 ，其中在步骤b）之前，在非印刷区域和载体中的涂层的特征在于CIE 1976色差ΔE1为5.0或更小，并且在步骤d）之后，打印区域中的涂层之间的CIE 1976色差ΔE2 非印刷领域超过6.8个。

公开(公告)号：US20170326869A1

公开(公告)日：2017-11-16

申请号：US15533106

申请日：2015-11-25

Applicant: AGFA GRAPHICS NV

Inventor： Milan STAMENOVIC ,  Jan DIERCKX ,  Peter HENDRIKX

IPC: B41C1/10 ,  G03F7/20

CPC classification number: B41C1/1016 ,  B41C1/1008 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/24 ,  G03F7/202 ,  G03F7/3007

Abstract: A system for exposing a heat and/or light sensitive printing plate precursor including a coating on a support includes a platesetter including a laser head for generating a laser beam to create an image, and the platesetter further includes an electrostatic generator capable of electrostatically charging the surface of the coating.

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）。