| 摘要 |
PROBLEM TO BE SOLVED: To provide a photosensitive planographic printing plate material having good developability and ensuring a small amount of development sludge particularly even when a developing solution of <pH 12.5 is used in relation to improvement of high sensitivity, printing resistance, ink receptivity, etc. SOLUTION: In the photosensitive planographic printing plate material having a photopolymerizable photosensitive layer comprising an addition polymerizable ethylenically unsaturated double bond-containing monomer on a support, the monomer is a monomer of formula (I) (where R1 -R4 are each alkyl or the like; R5 and R6 are each methyl or the like; and R7 and R8 are each a 2-6C alkyl) or the like. |
