公开(公告)号：US4475460A

公开(公告)日：1984-10-09

申请号：US539212

申请日：1983-10-05

申请人： Hiroshi Matsumoto

发明人： Hiroshi Matsumoto

IPC分类号： B41N1/14 ,  B41N3/08

CPC分类号： B41N3/08

摘要： A process for desensitizing lithographic printing plates is described. The gum for the process comprises an aqueous solution containing a film-forming starch derivative modified with polyoxyethylene or a polyoxyethylene-polyoxypropylene copolymer. The gum reduces the number of spoiled copies printed and the amount of staining on non-image areas.

摘要翻译： 描述了一种用于使平版印刷版脱敏的方法。 该方法的胶包括含有用聚氧乙烯或聚氧乙烯 - 聚氧丙烯共聚物改性的成膜淀粉衍生物的水溶液。 口香糖减少印刷的损坏的拷贝的数量和非图像区域的染色量。

公开(公告)号：US4431724A

公开(公告)日：1984-02-14

申请号：US356900

申请日：1982-03-10

申请人： Jury M. Ovchinnikov ,  Valentina G. Solokhina ,  Xenia G. Samoshenkova ,  Veniamin S. Lapatukhin ,  Julia I. Belyaeva ,  Genrietta Y. Krikman ,  Izabella I. Guschina ,  Nikolai N. Krutikov ,  Ljubov I. Sulakova

发明人： Jury M. Ovchinnikov ,  Valentina G. Solokhina ,  Xenia G. Samoshenkova ,  Veniamin S. Lapatukhin ,  Julia I. Belyaeva ,  Genrietta Y. Krikman ,  Izabella I. Guschina ,  Nikolai N. Krutikov ,  Ljubov I. Sulakova

IPC分类号： B41N3/03 ,  B41N3/08 ,  G03F7/32 ,  G03F7/08

CPC分类号： G03F7/32

摘要： An offset printing plate is provided comprising a carbon steel substrate with printing and non-printing areas on its surface. The printing areas are made of a light-sensitive top layer material based on derivatives of ortho-naphthoquinonediazide-sulphonic or carboxylic acids or a light-sensitive top layer material comprising a photopolymerizable composition. These printing areas form a relief over the plate surface. The non-printing areas are made of a hydrophilized metal of the substrate hydrophilized carbon steel.A process for making an offset printing plate comprises application, onto a carbon steel substrate, of a light sensitive top layer based on derivatives of ortho-naphthoquinonediazide-sulphonic or carboxylic acids or a light-sensitive top layer comprising a photopolymerizable composition. The thus-applied top layer is dried. Onto the dried top layer an image is transferred from a photo-mask, a diapositive in the case of using a top layer based on derivatives of ortho-naphthoquinonediazide-sulphonic or carboxylic acids, and from a negative in the case of using a top layer comprising a photopolymerizable composition. The image is developed by removing regions of the top layer from the non-printing areas by means of a 0.2-1.5% aqueous solution of alkali metal salts or alkali metal hydroxides at a temperature ranging from 18.degree. to 25.degree. C. The non-printing areas are hydrophilized by means of an aqueous solution containing 5 to 10% of a salt formed by an alkali metal and a cyanide inorganic complex, and 0.5 to 2% of an organic hydrophilic colloid at a temperature ranging from 20.degree. to 50.degree. C.The offset printing plate according to the present invention features a simple structure and a high mechanical strength. A tensile strength of a carbon steel substrate ranges from 32 to 36 kgf/mm.sup.2. Wear-resistance of the non-printing areas is about 0.05 mm.sup.3 /cm.sup.2. The offset printing plate according to the present invention can withstand press runs of about 250,000 prints.

公开(公告)号：US4396703A

公开(公告)日：1983-08-02

申请号：US339935

申请日：1982-01-18

申请人： Hiroshi Matsumoto ,  Shizuo Miyano

发明人： Hiroshi Matsumoto ,  Shizuo Miyano

IPC分类号： G03F7/00 ,  B41C1/10 ,  B41N3/08 ,  G03F7/40 ,  B41N3/00 ,  G03F7/08

CPC分类号： B41C1/10 ,  B41N3/08

摘要： A retouching agent for lithographic printing plate containing an admixture of (a) a lactone having 4 to 6 carbon atoms and (b) a glycol ether or ketone.

摘要翻译： 一种用于平版印刷版的润饰剂，其包含（a）具有4-6个碳原子的内酯和（b）二醇醚或酮的混合物。

公开(公告)号：US4374036A

公开(公告)日：1983-02-15

申请号：US208253

申请日：1980-11-19

申请人： Ralph D. Canale ,  Albert S. Canale ,  Harry Papazian

发明人： Ralph D. Canale ,  Albert S. Canale ,  Harry Papazian

IPC分类号： B41N3/08 ,  B41L25/00 ,  B41M1/06 ,  C11D3/075 ,  C11D3/43

CPC分类号： B41N3/08

摘要： A compositoin suitable for production of a fountain solution for lithographic printing operations, which comprises tetrapotassium pyrophosphate, monosodium phosphate, a sequestrant, a water-soluble polyethylene glycol, sodium carboxymethyl cellulose, a low- or non-foaming nonionic detergent, an anionic detergent and a polysiloxane. The invention is also directed to a concentrate and a fountain solution, both of which comprise a mixture of water and the foregoing composition.

摘要翻译： 适用于生产平版印刷操作的润版液的组合物，其包括焦磷酸四钾，磷酸二氢钠，螯合剂，水溶性聚乙二醇，羧甲基纤维素钠，低或非发泡非离子洗涤剂，阴离子洗涤剂和 聚硅氧烷。 本发明还涉及浓缩物和润版液，它们都包含水和上述组合物的混合物。

公开(公告)号：US4347289A

公开(公告)日：1982-08-31

申请号：US289562

申请日：1981-08-03

申请人： George T. Colegrove

发明人： George T. Colegrove

IPC分类号： B41N3/08 ,  B32B15/04 ,  C09K13/02 ,  C09K13/04 ,  C09K13/06

CPC分类号： B41N3/08 ,  Y10T428/31678 ,  Y10T428/31971

摘要： Polysaccharide S-119 is used as a desensitizer in lithographic fountain solutions to maintain non-image areas on a lithographic printing plate in a hydrophilic condition in order to prevent scumming or ink pickup in said areas. S-119 is prepared in aqueous solution which is added to phosphoric acid etch in water plus alcohol to provide a gum concentration of 20-1000 ppm by weight in the fountain solution.

摘要翻译： 多糖S-119用作平版印刷版溶液中的脱敏剂，以在亲水性条件下在平版印刷版上保持非图像区域，以防止所述区域中的浮渣或墨水拾取。 在水溶液中制备S-119，将其加入到水加醇中的磷酸蚀刻中，以在润版液中提供20-1000ppm重量的胶浓度。

公开(公告)号：US4308340A

公开(公告)日：1981-12-29

申请号：US176363

申请日：1980-08-08

申请人： John E. Walls

发明人： John E. Walls

IPC分类号： B41N3/08 ,  G03F7/32 ,  G03C5/24

CPC分类号： G03F7/32

摘要： A developer suitable for machine and hand processing may now be made which accomplishes the aforementioned objects which is an aqueous solution comprising 2-propoxyethanol as a detackifying agent, an adjuvant solvent, a nonionic surfactant with a hydrophile-lipophile balance over about 17, and an inorganic salt. A developer/finisher may be prepared by adding thereto a water-soluble polymeric film former which is preferably polyvinyl pyrrolidone. A suspending agent, e.g. polyethylene glycol, is added to hand processing solutions.

摘要翻译： 现在可以进行适合于机器和手工处理的显影剂，其实现了上述目的，其是包含2-丙氧基乙醇作为防粘剂的水溶液，辅助溶剂，亲水亲油平衡超过约17的非离子表面活性剂，以及 无机盐。 可以通过向其中加入优选聚乙烯吡咯烷酮的水溶性聚合物成膜剂来制备显影剂/整理剂。 悬浮剂，例如 聚乙二醇加入到手工处理溶液中。

公开(公告)号：US4291117A

公开(公告)日：1981-09-22

申请号：US125056

申请日：1980-02-27

申请人： Chikashi Ohishi ,  Akira Hasegawa

发明人： Chikashi Ohishi ,  Akira Hasegawa

IPC分类号： G03F7/00 ,  B41N3/08 ,  G03F7/32 ,  G03F7/40 ,  G03C7/08

CPC分类号： G03F7/32

摘要： In a plate-making process comprising the steps of (a) imagewise exposing a presensitized plate comprising an aluminum support having thereon a light-sensitive layer, (b) developing the imagewise exposed presensitized plate to remove either the exposed area or the unexposed area of the light-sensitive layer to reveal the surface of the aluminum support and (c) subjecting the developed plate to a process selected from the group consisting of (i) application of a developing ink, (ii) retouching process and (iii) gumming process, the improvement which comprises processing the developed plate with an aqueous surfactant solution directly after the step of (b).

摘要翻译： 在制版方法中，包括以下步骤：（a）成像曝光包含其上具有感光层的铝支架的预感板，（b）显影图像曝光的未敏化板以去除曝光区域或未曝光区域 所述感光层露出所述铝支撑体的表面，并且（c）使所述显影板经受选自以下的工艺：（i）施加显影油墨，（ii）修饰工艺和（iii）上胶工艺 其改进之处在于（b）步骤之后直接用表面活性剂水溶液处理显影板。

公开(公告)号：US4247328A

公开(公告)日：1981-01-27

申请号：US3524

申请日：1979-01-15

申请人： Leslie E. Lawson ,  Frank E. Smith

发明人： Leslie E. Lawson ,  Frank E. Smith

IPC分类号： B41N3/08 ,  C09D11/02

CPC分类号： B41N3/08

摘要： A concentrate for dilution with water to obtain a fountain solution for lithographic printing comprises a lithographic desensitizing material dissolved in a vehicle liquid comprising an organic solvent liquid optionally in admixture with water. Preferred desensitizing materials are organo substituted ammonium salts of desensitizing acids and a preferred organic solvent liquid is isopropyl alcohol. The fountain solution obtained on dilution of the concentrate may be used with printing machines having integrated damping/inking equipment.

摘要翻译： 用于稀释水以获得用于平版印刷的润版液的浓缩物包括溶解在包含任选与水混合的有机溶剂液体的载体液体中的光刻脱敏材料。 优选的脱敏材料是脱敏酸的有机取代铵盐，优选的有机溶剂液体是异丙醇。 稀释浓缩液得到的润版液可以与具有集成的阻尼/着墨设备的印刷机一起使用。

公开(公告)号：US4234443A

公开(公告)日：1980-11-18

申请号：US890018

申请日：1978-03-24

申请人： Ralph D. Canale ,  Albert S. Canale

发明人： Ralph D. Canale ,  Albert S. Canale

IPC分类号： B41N3/08 ,  C11D3/08 ,  C11D7/16

CPC分类号： B41N3/08

摘要： This invention is directed to a composition useful for making a fountain solution for lithographic printing operations which comprises trisodium phosphate, sodium metasilicate, tetrapotassium pyrophosphate, a nonionic detergent which is a condensation product of ethylene oxide with a dialkylphenol, an alkylamine or an aliphatic alcohol, and dialkylpolysiloxane. The invention is further directed to a method for making such a fountain solution which comprises combining any of the compositions of the invention with water.

摘要翻译： 本发明涉及一种用于制备平版印刷操作的润版液的组合物，其包括磷酸三钠，偏硅酸钠，焦磷酸四钾，作为环氧乙烷与二烷基酚，烷基胺或脂族醇的缩合产物的非离子洗涤剂， 和二烷基聚硅氧烷。 本发明还涉及制备这种润版液的方法，其包括将本发明的任何组合物与水组合。

公开(公告)号：US4214531A

公开(公告)日：1980-07-29

申请号：US42643

申请日：1979-05-25

申请人： Walter L. Garrett ,  Czerepinski, Ralph G.

发明人： Walter L. Garrett ,  Czerepinski, Ralph G.

IPC分类号： B41N3/08 ,  G03F7/32 ,  G03F7/02 ,  B41M5/00 ,  B41N1/00

CPC分类号： G03F7/32 ,  Y10S516/06 ,  Y10S516/07

摘要： Aqueous solutions are provided for treating image-bearing lithographic plates. These solutions include as an active polymer component:(a) a polyacrylamide-based polymer wherein from about 3 to about 70 percent of the carbonyl sites are carboxyl groups, and the balance of said sites are amide moieties;(b) a physical blend comprised of from about 97 to about 30 weight percent polyacrylamide and from about 3 to about 70 weight percent polyacrylic acid or an alkali metal or ammonium salt thereof;(c) a physical blend comprised of polyacrylamide, or polyacrylic acid or an alkali metal or ammonium salt thereof, and at least one polyacrylamide-based polymer as described in (a), said polymers being employed in proportions such that of the total carbonyl sites present in the blend, from about 3 to about 70 percent are carboxyl groups and the balance are amide moieties;(d) a mixture of any two or more of the foregoing; or(e) a mixture of any one or more of the foregoing with up to about 30 percent by weight hydroxypropyl methylcellulose.The weight average molecular weight (Mw) of each of the polyacrylamide-based polymer, the polyacrylamide, and the polyacrylic acid or salt thereof is from about 5,000 to about 1,000,000.By employing various concentrations of the above described active component in an aqueous solution, and, optionally, by employing in addition other components, solutions and/or emulsions are provided for the developing, gumming, gum etching, cleaning, storage, and the like, of lithographic plates. The method consists in applying the compositions to an image-bearing plate. As a new article, there is produced a lithographic plate bearing an image and having a coating containing the recited active polymer component.

摘要翻译： 提供水溶液用于处理承载平版印刷版。 这些溶液包括作为活性聚合物组分：（a）聚丙烯酰胺基聚合物，其中约3-约70％的羰基位点是羧基，其余部分是酰胺部分; （b）由约97至约30重量％的聚丙烯酰胺和约3至约70重量％的聚丙烯酸或其碱金属或铵盐组​​成的物理共混物; （c）由聚丙烯酰胺或聚丙烯酸或其碱金属或铵盐组​​成的物理共混物和如（a）所述的至少一种聚丙烯酰胺类聚合物，所述聚合物的使用比例使得总羰基位置 存在于共混物中，约3至约70％为羧基，余量为酰胺部分; （d）上述任何两种或多种的混合物; 或（e）任何一种或多种前述物质与至多约30％（重量）羟丙基甲基纤维素的混合物。 聚丙烯酰胺类聚合物，聚丙烯酰胺和聚丙烯酸或其盐中的每一种的重均分子量（Mw）为约5,000至约1,000,000。 通过将各种浓度的上述活性组分用于水溶液中，并且任选地通过另外使用其它组分，溶液和/或乳液用于显影，上胶，口香糖蚀刻，清洁，储存等， 的平版印刷版。 该方法包括将组合物施加到图像承载板上。 作为新的制品，制造了带有图像并具有包含所述活性聚合物组分的涂层的平版印刷版。