公开(公告)号：US5213920A

公开(公告)日：1993-05-25

申请号：US798004

申请日：1991-11-26

申请人： Paul J. Coppens ,  Ludovicus H. Vervloet ,  Serge M. Tavernier ,  Paul F. Sterckx

发明人： Paul J. Coppens ,  Ludovicus H. Vervloet ,  Serge M. Tavernier ,  Paul F. Sterckx

IPC分类号： G03G7/00 ,  G03G13/28

CPC分类号： G03G7/0013 ,  G03G13/283 ,  G03G7/002 ,  G03G7/0033

摘要： The present disclosure relates to an electrophotographic method of obtaining a lithographic printing plate comprising the step of transferring a toner image from a toner image bearing member to a toner receiving plate, said toner receiving plate comprising a thermoplastic film support and a crosslinked hydrophilic layer thereon, characterized in that said crosslinked hydrophilic layer either carries on top thereof or incorporates spacing particles forming protuberances on said layer.According to a preferred embodiment, the average particle diameter by volume of the spacing particles is at least twice the average particle diameter by volume of the electrophotographic toner.

公开(公告)号：US5068165A

公开(公告)日：1991-11-26

申请号：US552945

申请日：1990-07-16

申请人： Paul J. Coppens ,  Ludovicus H. Vervloet ,  Luc H. Leenders ,  Ronald Schuerwegen

发明人： Paul J. Coppens ,  Ludovicus H. Vervloet ,  Luc H. Leenders ,  Ronald Schuerwegen

IPC分类号： B41N1/14 ,  G03F7/07 ,  G03F7/11

CPC分类号： G03F7/07

摘要： Method for making lithographic aluminium offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminium foil, a water-swellable intermediate layer comprising a non-protenic hydrophilic film-forming polymer, and a silver halide emulsion layer, applying an aqueous alkaline solution thereto in the presence of a developing agent and a silver halide solvent, allowing to reduce the photo-exposed silver halide, allowing the unreduced silver halide or complexes thereof to diffuse to said aluminium foil to form a silver image thereon, and separating said emulsion layer and said intermediate layer from the image aluminium foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.

摘要翻译： 根据DTR工艺制造平版印刷铝胶印板的方法，其通过光敏曝光包含亲水性铝箔，包含非抗原亲水性成膜聚合物的水溶胀性中间层和卤化银的感光单层组合物 乳液层，在显影剂和卤化银溶剂的存在下向其中施加碱性水溶液，允许减少曝光的卤化银，使得未还原的卤化银或其配合物扩散到所述铝箔以形成银 并且将图像铝箔分离所述乳剂层和所述中间层。 本发明还涉及用于制造这种印版的感光单片层组合件。