| 摘要 |
To provide a color-forming composition and a color-forming curable composition each of which forms high color upon exposure to light and has small fading after the color formation, and a lithographic printing plate precursor capable of undergoing on-press development, which forms high color upon exposure to light, which has a high plate inspection property, and which provides a lithographic printing plate of high printing durability. A color-forming composition containing (A) a radical generator, (B) a compound represented by formula (1) shown below and (C) a binder polymer, a color-forming curable composition further containing (E) a polymerizable compound, and a lithographic printing plate precursor comprising an image-recording layer containing the color-forming curable composition.
wherein, in the formula (1), R 1 represents a group which reacts with a radical generated from the radical generator (A) to be released and forms a dye after the release, and T represents a nitrogen-containing hetero ring. |
