公开(公告)号：US20100081090A1

公开(公告)日：2010-04-01

申请号：US12565391

申请日：2009-09-23

Applicant: Keisuke ARIMURA

Inventor： Keisuke ARIMURA

IPC: G03F7/20

CPC classification number: G03F7/322 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/06 ,  B41C2201/10 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24

Abstract: A process for making a lithographic printing plate, comprising: an exposure step of imagewise exposing a lithographic printing plate precursor that comprises, above a hydrophilic support, a photosensitive layer comprising (A) a compound that generates a radical upon the application of light or heat, (B) a polymer having an aromatic carboxy group in a side chain, (C) a polymerizable compound, and (D) an infrared absorber; and a development processing step using one type of processing liquid, wherein the processing liquid has a pH of 8.5 to 10.8.

Abstract translation: 一种制备平版印刷版的方法，包括：曝光步骤，将平版印刷版前体成像曝光，所述平版印刷版前体在亲水性载体之上包括感光层，所述感光层包含（A）在施加光或热时产生自由基的化合物 ，（B）侧链具有芳香族羧基的聚合物，（C）聚合性化合物，（D）红外线吸收剂等。 以及使用一种处理液的显影处理步骤，其中处理液的pH为8.5至10.8。

公开(公告)号：US20090233221A1

公开(公告)日：2009-09-17

申请号：US12402276

申请日：2009-03-11

Applicant: Shigefumi KANCHIKU ,  Toyohisa OYA ,  Keisuke ARIMURA

Inventor： Shigefumi KANCHIKU ,  Toyohisa OYA ,  Keisuke ARIMURA

IPC: G03F7/004

CPC classification number: B41C1/1016 ,  B41C2201/04 ,  B41C2201/06 ,  B41C2201/10 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41M2205/38

Abstract: The present invention provides a negative-working photosensitive material formed by sequentially layering an undercoat layer and a photosensitive layer on a support, wherein the undercoat layer contains a polymer containing (a) a structural unit containing at least one selected from a carboxylic acid or a carboxylic acid salt and (b) a structural unit containing at least one carboxylic acid ester; the photosensitive layer contains (A) an infrared absorbent, (B) an organoboron compound, (C) an onium salt compound and (D) a compound having a polymerizable unsaturated group; and a ratio of (a) with respect to (a) and (b) is 30 to 90% by mol. The invention also provides a negative-working planographic printing plate precursor that uses the negative-working photosensitive material.

Abstract translation: 本发明提供一种通过在支撑体上依次层叠底涂层和感光层而形成的负性感光材料，其中底涂层含有含有（a）含有选自羧酸或 羧酸盐和（b）含有至少一种羧酸酯的结构单元; 感光层含有（A）红外线吸收剂，（B）有机硼化合物，（C）鎓盐化合物和（D）具有聚合性不饱和基团的化合物; （a）相对于（a）和（b）的比例为30〜90摩尔％。 本发明还提供了使用负性感光材料的负性平版印刷版原版。