| 摘要 |
PURPOSE:To form an image high in printing resistance by incorporating an ethylenically unsaturated additionally polymerizable compound, a specified film-forming polymer, a photopolymerization initiator, a negatively acting diazo resin, and a higher fatty acid amide being liquid at ordinary temperature. CONSTITUTION:The photosensitive composition is prepared by incorporating (1) the ethylenically unsaturated additionally polymerizable compound, (2) a specified film-forming polymer soluble or swellable in an aqueous solution of alkali, (3) the photopolymerization initiator, (4) the negative acting diazo resin, and (5) the higher, fatty acid amide being liquid at ordinary temperature. As the compound (1), a monomer or oligomer having a boiling point of >=100 deg.C, and at least one additionally polymerizable unsaturated group in the molecule, and a molecular weight of <=10,000 can be used. As said polymer (2), acidic vinyl polymers having -COOH, -PO3H2, -SO3H, or the like groups in the molecule and an acid value of 50-200 are enumerated. |
