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1. 发明公开

EP0198575A3 Silver image enhancement composition and process for use thereof 失效
标题翻译：银图像增强组合物及其使用方法
公开(公告)号：EP0198575A3
公开(公告)日：1988-01-27
申请号：EP86300845
申请日：1986-02-07
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： Boston, David R. Minnesota Mining and Manufac. Co.
IPC分类号： G03C05/42 , G03C05/54 , G03F07/06
CPC分类号： G03C5/42 , G03C8/00 , G03F7/063
摘要： This invention relates to a composition and process for enhancing silver images, and, more particularly, for enhancing photographically produced silver images for use in lithography. In the silver salt diffusion transfer process, an imagewise exposed silver halide emulsion layer is positioned in intimate contact with a receptor element and developed with a silver halide developing composition in the presence of a solvent for silver halide such that the unexposed silver halide is dissolved and subsequently diffuses into the receptor element. Development nuclei, or catalyst, contained in the receptor element, cause the diffusing silver halide to be reduced (i.e., developed) to metallic silver, thereby forming an image on the surface of the receptor element. One shortcoming of the silver diffusion transfer process is that a substantial level of silver halide is required to provide a positive silver image of sufficient oleophilicity to function as a lithographic plate. Another shortcoming is that there is often insufficent oleophilic/hydrophilic differential between the image areas and background areas of the lithographic plate. This invention involves a composition for enhancing silver images comprising an oxidizing agent for metallic silver and a silver ion insolubilizing agent which react with photographically produced silver deposits. The composition is particularly useful in enhancing the lithographic utility of photographically produced silver deposits which function as the inkable image area of lithographic printing plates.

2. 发明公开

EP0068627A3 Photolithographic element containing a silver-receptive polyaldehyde-containing receiving layer 有权
标题翻译：含有接受含氟聚合物的接收层的光刻元件
公开(公告)号：EP0068627A3
公开(公告)日：1983-03-16
申请号：EP82302619
申请日：1982-05-21
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： Kinderman, Gerard H. , Sanders, James F.
IPC分类号： G03F07/06 , G03F07/02 , G03C05/54
CPC分类号： G03F7/07 , G03C8/28
摘要： A photolithographic sheet capable of forming a lithographic printing plate upon imaging via silver salt diffusion transfer comprising a support, a silver halide emulsion, and a receptor layer overlying the emulsion, the receptor layer comprising a high molecular weight hydrophilic polymer and catalytic nuclei for silver salt diffusion transfer development, the major proportion of the polymer being a polyaldehyde.

3. 发明申请

WO1993011466A1 PRODUCTION OF LITHOGRAPHIC PRINTING PLATES IN A DRY MANNER 审中-公开
标题翻译：在干燥剂中生产平版印刷板
公开(公告)号：WO1993011466A1
公开(公告)日：1993-06-10
申请号：PCT/EP1992002673
申请日：1992-11-20
申请人： AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP , LEENDERS, Luc , VAN CLEUVENBERGEN, Rudy , DE BUSSER, Rudi , MONBALIU, Marcel
发明人： AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP
IPC分类号： G03F07/06
CPC分类号： G03C1/49845 , G03C7/30552 , G03F7/06
摘要： Heat-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 said 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 a said imaging element, bringing said exposed element in face-to-face contact with an oleophobic surface of a printing plate precursor, heating said imaging element while in contact or before being brought in contact with said oleophobic surface to cause reduction of said organic silver salt and to cause the release of said hydrophobizing agent from said releasing compound, allowing said hydrophobizing agent to diffuse to said oleophobic surface to render said surface image-wise oleophilic, and separating the resulting lithographic printing plate from said imaging element.
摘要翻译：含有可还原的有机银盐，感光卤化银，显影剂和释放化合物的可热显影的银基光敏成像元件，与还原或氧化形式的所述显影剂反应，能够释放疏水剂。本发明还涉及一种用于生产平版印刷版的方法，包括以成像方式曝光所述成像元件，使所述暴露元件与印版前体的疏油表面面对面接触，加热所述成像元件，同时接触或在与所述疏油表面接触之前引起所述有机银盐的还原并使所述疏水化剂从所述释放化合物释放，使所述疏水化剂扩散到所述疏油表面以使所述表面成像亲油的，并将得到的平版印刷版与所述成像元件分离。

4. 发明申请

WO1999032937A1 THE METHOD OF PRINTING PLATE PRODUCTION 审中-公开
标题翻译：印版生产方法
公开(公告)号：WO1999032937A1
公开(公告)日：1999-07-01
申请号：PCT/CZ1997000044
申请日：1997-12-22
申请人： AQUA MORAVA A.S. , DOLEZ¿EL, Stanislav
发明人： AQUA MORAVA A.S.
IPC分类号： G03F07/06
CPC分类号： G03F7/063
摘要： The invention is concerning the use of metallic silver in the exposed, developed, and fixated silver-halogenide photographic layer fixed on the solid support, for the production of printing plate. The effect is achieved by treatment with acidic aqueous solution based on cupric chloride and hydrogen peroxide, or by treatment with aqueous solution based on cupric chloride and sodium and/or potassium dichromate followed by washing, and drying the layer which can be remoistened, eventually with addition of glycerol, before the use.
摘要翻译：本发明涉及在固定在固体支持体上的暴露的，显影的和固定的卤化银照相层中使用金属银，用于生产印刷版。通过用基于氯化铜和过氧化氢的酸性水溶液处理或通过用基于氯化铜和重铬酸钠和/或重铬酸钾的水溶液处理，然后洗涤，并干燥可以再次吸收的层，最终以加入甘油，使用前。

5. 发明公开

EP0184078A3 Method for etching half-tone silver halide images and silver halide photosensitive material for half-tone image reproduction 失效
标题翻译：用于蚀刻阴极图像重现的方法，用于半色调图像重现的银色金属卤化物感光材料
公开(公告)号：EP0184078A3
公开(公告)日：1988-11-17
申请号：EP85114809
申请日：1985-11-21
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： Sgarbi, Aldo , Vacca, Alberto , Beretta, Paolo , Kitchin, Jonathan Peter
IPC分类号： G03C01/06 , G03F07/06
CPC分类号： G03C1/09
摘要： A black and white silver halide photosensitive material for contact copying of dot (or line) images comprises a high-chloride fine-grain silver halide emulsion reactively associated with a compound selected from the group of thiazolium salt compounds, thiazole compounds and pyrazole compounds. Said compounds are preferably added to the silver halide emulsion in combination with a mercaptotetrazole compound. The photosensitive material allows, during the photomechanical etching process, a significant reduction in the area of the dots without causing a significant reduction of small dots.

6. 发明公开

EP0131462A3 Improvements in or relating to lithographic printing plates 有权转让
标题翻译：改进或相关于平版印刷版
公开(公告)号：EP0131462A3
公开(公告)日：1986-09-17
申请号：EP84304667
申请日：1984-07-09
申请人： VICKERS PLC
发明人： Watkiss, Philip John
IPC分类号： G03F07/06 , B41N03/08
CPC分类号： G03F7/063
摘要： A lithographic printing plate having metallic silver image areas is treated with a proteolytic enzyme and an oleophilising compound to improve ink receptivity.

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