公开(公告)号：EP2186637A1

公开(公告)日：2010-05-19

申请号：EP08167404.6

申请日：2008-10-23

Applicant: Agfa Graphics N.V.

Inventor： Williamson, Alexander ,  Loccufier, Johan ,  Wynants, Sonny ,  Heylen, Kristof

IPC: B41C1/10 ,  G03F7/029

CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  G03F7/0295 ,  G03F7/3035 ,  G03F7/322

Abstract: A lithographic printing plate precursor is provided which comprises an aluminum support having a hydrophilic surface and a coating provided thereon, said coating comprising a photopolymerisable composition having a polymerisable compound, a pigment dispersed with a dispersant, a polymerization initiator and a binder, characterized in that the dispersant is a compound free of -COOH, - PO 3 H 2 or -OPO 3 H 2 groups, and the polymerization initiator is a trihalomethyl-aryl sulphone wherein the aryl group is substituted by at least one electron-donating group and wherein the sum of the Hammett constants (sigma) of the substituting groups on said aryl group has a negative value.
The printing plate precursor exhibits an excellent daylight stability and shelf-life.

Abstract translation: 提供了一种平版印刷版原版，其包括具有亲水表面的铝载体和其上提供的涂层，所述涂层包含具有可聚合化合物的可光聚合组合物，用分散剂分散的颜料，聚合引发剂和粘合剂，其特征在于 分散剂是不含-COOH，PO 3 H 2或-OPO 3 H 2的化合物，聚合引发剂是三卤代甲基 - 芳基砜，其中芳基被至少一个给电子基团取代，其中 所述芳基上的取代基的哈米特常数（sigma）的和为负值。 印版前体表现出优异的日光稳定性和保质期。

公开(公告)号：EP2186637B1

公开(公告)日：2012-05-02

申请号：EP08167404.6

申请日：2008-10-23

Applicant: Agfa Graphics N.V.

Inventor： Williamson, Alexander ,  Loccufier, Johan ,  Wynants, Sonny ,  Heylen, Kristof

IPC: B41C1/10 ,  G03F7/029

CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  G03F7/0295 ,  G03F7/3035 ,  G03F7/322