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公开(公告)号：EP1019254B1
公开(公告)日：2001-12-19
申请号：EP98925475.0
申请日：1998-04-16
发明人： GATES, Allen, Peter , GOODIN, Jonathan, William , KITTERIDGE, John, Michael , MALLISON, Malcolm, James , ROBINSON, Roland , WATKISS, Philip, John
IPC分类号： B41N1/08
摘要： The invention provides a lithographic printing plate precursor comprising a grained and anodised aluminium substrate having coated thereon a silver halide emulsion layer, the back surface of said substrate being coated with an inert coating which does not chemically or physically interact with an adjacent silver halide layer when two plates are placed in front to back contact. Fogging of the silver halide layer is avoided and the use of the back coating eliminates the requirement for the use of tissue interleaving when wrapping and packing the lithographic printing plate precursors.
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2.发明授权Lithographic finisher composition and a method for making an offset printing plate according to the silver salt diffusion transfer process. 失效装订器，用以对由银盐扩散转印法制造胶版印刷板的平版印刷版和方法
公开(公告)号：EP0681219B1
公开(公告)日：2001-07-04
申请号：EP95200545.2
申请日：1995-03-07
申请人： AGFA-GEVAERT N.V.
CPC分类号： G03F7/063
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3.发明公开Lithographic printing plate and treating liquids for such plate comprising a hydrophilic amphoteric block copolymer 失效Lihtographische压板和处理液为含有亲水性两性嵌段共聚物
公开(公告)号：EP0872769A1
公开(公告)日：1998-10-21
申请号：EP97201123.3
申请日：1997-04-15
申请人： AGFA-GEVAERT N.V.
发明人： Vanmaele, Luc , Deprez, Lode , Louwet, Frank
摘要： A lithographic printing plate that works according to the silver salt diffusion transfer reversal process is disclosed. The lithographic properties of said plate can be improved by incorporating a hydrophilic amphoteric block copolymer, comprising a non-ionic block of acrylic units with pendant nitrile groups and an acrylamid(in)e block which comprises units with pendant basic and acidic groups. The hydrophilic amphoteric block copolymer is preferentially present in the image receiving layer of the lithographic printing plate. In an alternative embodiment, said block copolymer may be present in a treating solution used for processing said plate or applied onto said plate while printing. The hydrophilicity of the printing plate's surface is improved without deteriorating the ink-acceptance in the printing areas.
摘要翻译： 一种平版印刷版的作品gemäß银盐扩散转印反转法是游离缺失盘。 所述板的平版印刷性能可以通过将亲水性两性嵌段共聚物，包含丙烯酸单元组成的非离子嵌段与腈基侧基和丙烯酰胺的（在）在线块，其与侧碱性和酸性基团包括单元被改善。 亲水两性嵌段共聚物是在平版印刷版的图像接收层优选存在。 在可替换的实施方案，所述嵌段共聚物可存在于用于处理处理所说的板或施加到所述板，而印刷的溶液。 印刷板的表面的亲水性，而不会损害油墨接受在印刷区域得到改善。
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公开(公告)号：EP0131462B1
公开(公告)日：1991-09-11
申请号：EP84304667.3
申请日：1984-07-09
发明人： Watkiss, Philip John
CPC分类号： G03F7/063
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5.发明公开Silver master plate recovery solution 失效LipophilisierungslösungfürFlachdruckplatten mit Silbersalzen。
公开(公告)号：EP0346048A2
公开(公告)日：1989-12-13
申请号：EP89305661.4
申请日：1989-06-05
CPC分类号： G03F7/063
摘要： The invention relates to a silver master plate recovery solution for recovering the ink receptivity of an image area on a silver salt photographic plate for offset printing by reducing the silver oxide layer of said image area, said silver master plate recovery solution characterised in that it comprises:
(a) a hydrazine component for reducing said silver oxide layer of said image area;
(b) a quaternary ammonium salt cationic activator which enters the minute pores on said image area to lower the polarity of said image area which had been made porous by said hydrazine component; and
(c) water.摘要翻译： 本发明涉及一种银母板回收溶液，用于通过还原所述图像区域的氧化银层来恢复用于胶印的银盐照相板上的图像区域的油墨接收性，所述银母板回收溶液的特征在于，其包含 ：（a）用于还原所述图像区域的所述氧化银层的肼组分; （b）季铵盐阳离子活化剂，其进入所述图像区域上的微孔，以降低由所述肼组分多孔的所述图像区域的极性; 和（c）水。 Ø
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公开(公告)号：EP0198575A3
公开(公告)日：1988-01-27
申请号：EP86300845
申请日：1986-02-07
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.
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7.发明公开Lithographic printing with the aid of a fountain liquid 失效Lithographisches Druckverfahren mit Hilfe von Feuchtwasser。
公开(公告)号：EP0223881A1
公开(公告)日：1987-06-03
申请号：EP85201907.4
申请日：1985-11-19
摘要： Method for lithographic printing by means of a lithographic printing plate, which has been prepared from a photolithographic sheet element according to the silver complex diffusion transfer reversal process and carries an oleophilic silver image on its surface, said method comprising moistening said lithographic printing plate with a fountain liquid, supplying ink to the moistened printing plate, and printing, characterized in that said fountain liquid comprises triacetin in an amount of about 0.1 to about 30 percent by volume.
The present invention also provides a fountain liquid that comprises triacetin in an amount of about 0.1 to about 30 percent by volume.摘要翻译： 通过平版印刷版进行平版印刷的方法，该平版印刷版根据银复合扩散转移反转方法由光刻片元件制备，并在其表面上携带亲油性银影像，所述方法包括将所述平版印刷版用 喷墨液体，将油墨供应到润湿的印版上，以及印刷，其特征在于，所述润版液体包含量为约0.1至约30体积％的三醋精。 本发明还提供了含有约0.1至约30体积％量的甘油三乙酸酯的润版液体。
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公开(公告)号：EP0913732B1
公开(公告)日：2003-07-02
申请号：EP98203632.9
申请日：1998-10-29
申请人： AGFA-GEVAERT
CPC分类号： G03F7/063
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9.发明公开A correcting agent for a silver imaged lithographic printing plate 失效Korrekturmittelfüreine silberbebildete lithographische Druckplatte
公开(公告)号：EP0864928A1
公开(公告)日：1998-09-16
申请号：EP98200421.0
申请日：1998-02-10
申请人： AGFA-GEVAERT N.V.
发明人： Deprez, Lode
IPC分类号： G03F7/06
CPC分类号： G03F7/063
摘要： A bleach-fixing agent for making corrections on silver imaged lithographic printing plates, which work according to the silver salt diffusion transfer reversal mechanism, is disclosed. By limiting the amount of volatile organic solvents, having a boiling point lower than 100°C, comprised in said correcting agent, to a value not higher than 20% by volume and by adjusting the viscosity of same correcting agent to a value higher than 3 mPas, an improved correcting agent is obtained which is characterized by both a short deletion time, required to convert the undesired oleophilic printing areas into hydrophilic ink-rejecting areas, as well as a short drying time of said correcting agent after being applied to the printing plate's surface.
摘要翻译： 公开了一种用于根据银盐扩散转移反转机构工作的银成像平版印刷版进行校正的漂白剂。 通过将包含在所述校正剂中的沸点低于100℃的挥发性有机溶剂的量限制在不高于20体积％且通过将相同校正剂的粘度调节至高于3的值 mPas是一种改进的校正剂，其特征在于将不需要的亲油打印区域转换成亲水性墨水排斥区域所需的短的缺失时间，以及所述校正剂在施加到印刷之后的短的干燥时间 板的表面。
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10.发明公开A method for making an offset printing plate according to the silver salt diffusion transfer process 失效Verfahren zur Herstellung einer Offset Druckplatte nach dem Silbersalz-Diffusionsübertragungsverfahren
公开(公告)号：EP0848295A1
公开(公告)日：1998-06-17
申请号：EP97203474.8
申请日：1997-11-10
申请人： AGFA-GEVAERT N.V.
发明人： Van der Linden, Bart , Claes, Inge
CPC分类号： G03F7/063
摘要： The present invention provides a method for making a lithographic plate by a DTR process using a finisher comprising (a) hydrophobizing agent(s) in a total concentration between 0.1 g/l and 10 g/l, (a) surface-active compound(s) and (a) polyglycol(s) or (a) carbohydrate(s), characterized in that said finisher further comprises a non-proteinic hydrophilic film-forming binder selected from the group consisting of dextrin, maltodextrin and dextran in a concentration between 10 and 200 g/l.
摘要翻译： 本发明提供了一种通过使用整理剂的DTR方法制备平版印刷版的方法，其包括（a）总浓度为0.1g / l至10g / l的疏水化剂，（a）表面活性化合物 s）和（a）聚二醇或（a）碳水化合物，其特征在于所述整理剂还包含非蛋白性亲水性成膜粘合剂，其选自糊精，麦芽糖糊精和葡聚糖，其浓度介于 10和200g / l。
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