| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive planographic printing plate excellent in sensitivity, printing resistance, stain recovery and dot reproducibility. <P>SOLUTION: In the photosensitive planographic printing plate having a photopolymerizable photosensitive layer comprising an addition-polymerizable ethylenic double bond-containing monomer, a photopolymerization initiator and a polymeric binder, two or more sensitizing dyes are comprised in the photopolymerizable photosensitive layer and the relation among the wavelength λ1abs (nm) at which the first sensitizing dye has absorption maximum, the wavelength λ1emi (nm) at which the first sensitizing dye has emission maximum, the wavelength λ2abs (nm) at which the second sensitizing dye has absorption maximum and the maximum wavelength λe (nm) of exposure satisfy the formulae λ1abs-50≤λe≤λ1abs+50 and λ1emi-25≤λ2abs≤λ1emi+25. <P>COPYRIGHT: (C)2003,JPO |
