Negative working lithographic printing plate precursors are described wherein the imageable layer comprises a hyperbranched binder material having a Tg above 30°C and a number average molecular weight of 500 to 15000 g/mol and comprising urethane and/or urea linkages as well as ethylenically unsaturated groups.
描述了负向工作平版印刷板前体,其中可成像层包括超支化粘合剂材料,其 Tg 超过 30°C,平均分子量为 500 至 15000 g/mol,并包括聚
氨酯和/或
尿素连接以及
乙烯不饱和基团。