Patent ID: 6340554
Filing Date: 2002-01-22
Classification: B41C,B41M

Abstract:
A photosensitive and heat-sensitive planographic printing plate having on a support a photosensitive layer containing:a plurality of surface-modified water-insoluble particles; and a reaction product of: a compound having in a molecule thereof at least one functional group selected from among a sulfonic acid ester group, a disulfone group, a sulfonimide group, and an alkoxyalkyl ester group and at least one functional group selected from among â€”OH, â€”NH2, â€”COOH, â€”NHâ€”COâ€”R3, and â€”Si(OR4)3, wherein R3 and R4 each represents an alkyl group or an aryl group and wherein R3 and R4 may be the same or different in cases in which both R3 and R4 are present in the compound; and a hydrolytic polymerizable compound represented by the following formula (1): (R1)nâ€”Xâ€”(OR2)4âˆ’nâ€ƒâ€ƒ(1) â€ƒwherein R1 and R2, which may be the same or different, each represents an alkyl group or an aryl group; X represents Si, Al, Ti, or Zr; and n represents an integer from 0 to 2, wherein, a group(s) that changes from a hydrophobic property to a hydrophilic property due to radiation or heat, bonds to a solid surface of said surface-modified water-insoluble particles.