| 摘要 |
PROBLEM TO BE SOLVED: To provide a negative type photosensitive composition giving a photoreceptor having high sensitivity and excellent in storage stability and further giving a planographic printing plate excellent in image quality and printing performance. SOLUTION: In the photosensitive composition containing a photopolymerization initiator, an ethylenically unsaturated double bond compound and a polymer binder, the ethylenically unsaturated compound and/or the polymer binder has one or more organic onium cation groups and forms a salt with organoboron anions. |
