The invention is directed to an infrared sensitive color-forming composition containing a compound having an infrared absorbing skeleton and a thermochromic skeleton in a molecule thereof wherein the infrared absorbing skeleton and the thermochromic skeleton are connected with a covalent bond or an ionic bond and a binder; an infrared curable color-forming composition wherein the infrared sensitive color-forming composition further contains a radical initiator and a polymerizable compound; a lithographic printing plate precursor having an image-recording layer containing the infrared curable color-forming composition on a support; a plate making method including imagewise exposing the lithographic printing plate precursor and conducting on-press development processing by supplying printing ink and dampening water on a printing machine to remove a non-image area; a compound represented by the formula (7) as defined herein; and a compound represented by the formula (8) as defined herein.
本发明涉及一种红外敏感成色组合物,其分子中含有具有红外吸收骨架和热致变色骨架的化合物,其中红外吸收骨架和热致变色骨架通过共价键或离子键和粘合剂连接;一种红外可固化成色组合物,其中红外敏感成色组合物进一步含有自由基
引发剂和可聚合化合物;平版印刷版前体,在支撑物上具有含有红外固化成色组合物的图像记录层;制版方法,包括对平版印刷版前体进行图像曝光,并通过在印刷机上提供印刷油墨和润湿
水来进行印上显影处理,以去除非图像区域;由本文定义的式(7)表示的化合物;以及由本文定义的式(8)表示的化合物。