CHROMOGENIC COMPOSITION, PLANOGRAPHIC PRINTING ORIGINAL PLATE, METHOD FOR PRODUCING PLANOGRAPHIC PRINTING PLATE, AND CHROMOGENIC COMPOUND
申请人:FUJIFILM Corporation
公开号:EP3418332A1
公开(公告)日:2018-12-26
An object of the present invention is to provide a color developing composition which has excellent color developability and does not significantly discolor after aged using a color developing composition containing a compound represented by Formula (1) (in the formula, individual reference signs are as described in the specification) and a lithographic printing plate precursor containing the color developing composition in an image-recording layer. In addition, it is possible to provide a lithographic printing plate precursor which has excellent visibility by means of color development, is capable of maintaining excellent visibility even after aged, exhibits favorable on-machine developability, has excellent white light stability, and is also favorable in terms of printing resistance and tone reproducibility and a method for producing a lithographic printing plate in which the lithographic printing plate precursor is used. Furthermore, it is possible to provide a color developing compound which has excellent color developability and does not significantly discolor after aged.
The compound represented by Formula 1 has at least one of groups represented by Formulae (2) to (4) (in the formula, individual reference signs are as described in the specification) as R4 or R5 or in R1, Ar1, or Ar2.
本发明的目的是提供一种显色组合物,该组合物具有优异的显色性,并且使用含有式(1)表示的化合物的显色组合物(式中,各参考符号如说明书所述)和在图像记录层中含有该显色组合物的平版印刷板前体,在老化后不会明显褪色。此外,还可以提供一种平版印刷板前体,该前体通过显色具有优异的可见性,即使老化后也能保持优异的可见性,具有良好的机上显影性,具有优异的白光稳定性,在耐印刷性和色调再现性方面也很好,还可以提供一种使用该平版印刷板前体的平版印刷板的生产方法。此外,还可以提供一种显色性极佳且老化后不会明显褪色的显色化合物。
式 1 所代表的化合物至少有一个由式 (2) 至 (4) 所代表的基团(在式中,各个参考符号如说明书中所述)作为 R4 或 R5 或在 R1、Ar1 或 Ar2 中。