A dampening water composition for a lithographic printing plate comprising at least one compound represented by the following formula (I) and polyvinylpyrrolidone:
R1-O-(-CH2CH(CH3)-O-)m-H (I)
wherein R1 represents an alkyl group having carbon atoms of from 3 to 8, and m represents an integer ranging from 1 to 3. Said dampening water composition has a low dynamic surface tension and therefore exhibits favorable and stable printing properties under the conditions of members which rotate at high speed. Said dampening water composition exhibits stable printing properties to various ink compositions so as to obtain excellent printing matters.
一种用于平版印刷板的润湿
水组合物,由至少一种下式 (I) 所代表的化合物和聚
乙烯吡咯烷酮组成:
R1-O-(-CH2CH(
CH3)-O-)m-H (I)
所述润湿
水组合物具有较低的动态表面张力,因此在部件高速旋转的条件下具有良好和稳定的印刷性能。所述润湿
水组合物对各种油墨组合物具有稳定的印刷性能,从而获得极佳的印刷效果。