| 摘要 |
PCT No. PCT/EP92/02673 Sec. 371 Date Jun. 3, 1994 Sec. 102(e) Date Jun. 3, 1994 PCT Filed Nov. 20, 1992 PCT Pub. No. WO93/11466 PCT Pub. Date Jun. 10, 1993Heat-developable silver-based photosensitive imaging element comprising a heat-reducible organic silver salt, a photosensitive silver halide, a developing agent, and a releasing compound that upon reaction with either the reduced or the oxidized form of the developing agent is capable of releasing a hydrophobizing agent. The invention also relates to a method for producing a lithographic printing plate comprising image-wise exposing an imaging element, bringing the exposed element in face-to-face contact with an oleophobic surface of a printing plate precursor, heating the imaging element while in contact or before being brought in contact with the oleophobic surface to cause reduction of the organic silver salt and to cause the release of the hydrophobizing agent from the releasing compound, allowing the hydrophobizing agent to diffuse to the oleophobic surface to render the surface image-wise oleophilic, and separating the resulting lithographic printing plate from the imaging element. |
