公开(公告)号：US5118583A

公开(公告)日：1992-06-02

申请号：US417040

申请日：1989-10-04

申请人： Toshiro Kondo ,  Hidetoshi Miura ,  Kyonosuki Yamamoto ,  Sukeaki Date

发明人： Toshiro Kondo ,  Hidetoshi Miura ,  Kyonosuki Yamamoto ,  Sukeaki Date

IPC分类号： G03F7/06

CPC分类号： G03F7/066

摘要： The present invention provides a processing composition which is used for lithographic printing plate where silver image is used as ink receptive area for enhancing ink receptivity of the silver image. This composition contains an organic compound having two or more mercapto groups or thion groups and, in combination therewith, an aromatic sulfonic acid formalin condensate, an anionic surfactant having a polyoxyethylene group, an aromatic carboxylic acid, a hydrosulfite compound, a water-soluble polymer having a carboxyl group and having a number-average molecular weight of about 20,000 or less, a hydroxyaryl fatty acid, or an organic disulfide compound. If this composition additionally contains an oxidizing agent, it can further improve printing endurance of the printing plate.

摘要翻译： 本发明提供一种用于平版印刷版的处理组合物，其中使用银图像作为用于增强银图像的吸墨性的油墨接收区域。 该组合物含有具有两个或多个巯基或硫基的有机化合物，并且与其组合，包含芳族磺酸福尔马林缩合物，具有聚氧乙烯基团的阴离子表面活性剂，芳族羧酸，连二亚硫酸盐化合物，水溶性聚合物 具有羧基且数均分子量为约20,000以下，羟基芳基脂肪酸或有机二硫化物。 如果该组合物另外含有氧化剂，则可以进一步提高印版的印刷耐久性。