-
公开(公告)号：US4497888A
公开(公告)日：1985-02-05
申请号：US506268
申请日：1983-06-21
申请人： Akira Nishioka , Yoshimasa Aotani , Kotaro Yamasue
发明人： Akira Nishioka , Yoshimasa Aotani , Kotaro Yamasue
CPC分类号： G03F7/105
摘要： A light-sensitive printing plate precursor is disclosed. The printing plate precursor is comprised of an aluminum support base having provided on a grained and anodized surface. The surface is coated with a layer which is comprised of a positive working light-sensitive composition and an oxonol dye. The printing plate has high printing durability, high water retention ability and high color stain resistance. When used the plate precursor provides an image having high contrast. The plate precursor forms less color stain than conventional plates whether used with a fresh developing solution or a fatigued developing solution. The plate precursor does not result in causing uneven development when using manual development methods.
摘要翻译： 公开了一种感光印版前体。 印版前体由设置在颗粒和阳极氧化表面上的铝支撑基底组成。 该表面涂覆有由正性工作感光组合物和氧杂菁染料组成的层。 印版具有高印刷耐久性，高保水性和高耐污染性。 当使用时，板前体提供具有高对比度的图像。 无论是使用新鲜的显影液还是疲劳的显影液，平板前体形成的染色剂比常规平板少。 当使用手动开发方法时，板前体不会导致不均匀的发展。
-
2.发明授权
公开(公告)号：US4259434A
公开(公告)日：1981-03-31
申请号：US145105
申请日：1980-04-30
CPC分类号： G03F7/322
摘要： A development method which comprises imagewise exposing a positive acting light-sensitive planographic printing plate comprising an aluminum support and a light-sensitive layer of an o-quinonediazide compound formed thereon, and then developing the exposed plate with a developer, comprising an aqueous solution of an alkali metal silicate, adding a supplementary solution comprising an aqueous solution of an alkali metal silicate to the developer to compensate for the degradation of the developer brought about by development and/or by carbon dioxide in the air; wherein the developer comprises an aqueous solution of an alkali metal salt having an [SiO.sub.2 ]/[M] ratio of from 0.5 to 0.75 and an SiO.sub.2 concentration of from 1 to 4% by weight based on the total weight of the developer, where [SiO.sub.2 ] represents the concentration of SiO.sub.2 per unit volume expressed as gram-molecules, and [M] represents the concentration of the alkali metal per unit volume expressed as gram-atoms, and the supplementary solution comprises an aqueous solution of an alkali metal silicate having an [SiO.sub.2 ]/[M] ratio of from 0.25 to 0.75.
摘要翻译： 一种显影方法，其包括成像曝光包含铝载体和形成在其上的邻醌二叠氮化合物的感光层的正性光敏平版印刷版，然后用显影剂将曝光的板显影， 碱金属硅酸盐，将含有碱金属硅酸盐水溶液的补充溶液加入到显影剂中以补偿由显影产生的显影剂和/或二氧化碳在空气中的降解; 其中显影剂包含基于显影剂总重量的[SiO 2] / [M]比为0.5至0.75和SiO 2浓度为1至4重量％的碱金属盐的水溶液，其中[ SiO 2]表示以克分子表示的每单位体积的SiO 2浓度，[M]表示以克原子表示的每单位体积的碱金属的浓度，补充溶液包含碱金属硅酸盐的水溶液， 0.25〜0.75的[SiO 2] / [M]比。
-
3.发明授权Presensitized plate comprising two photosensitive layers wherein the layer adjacent to the support has a lower concentration of dye than the other layer 失效包含两个感光层的致敏板，其中与载体相邻的层具有比另一层更低的染料浓度
公开(公告)号：US5747216A
公开(公告)日：1998-05-05
申请号：US714568
申请日：1991-06-13
申请人： Takuo Watanabe , Yasuhito Naruse , Kotaro Yamasue
发明人： Takuo Watanabe , Yasuhito Naruse , Kotaro Yamasue
CPC分类号： G03F7/105 , G03F7/0226
摘要： A presensitized plate which comprises a roughened and anodized aluminum plate having provided thereon a positive working light-sensitive composition layer which comprises a dye and can be made soluble in a developer upon exposure to light, wherein the dye concentration in the portion of the light-sensitive layer adjacent to or near the substrate is lower than that in the other portions of the light-sensitive layer. The presensitized plate according to the present invention has less color staining than PS plates of the prior art do and thus has excellent examining properties for plate-quality. The presensitized plate also has remarkable advantages of less stains around image-deleted areas during printing and high printing durability.
摘要翻译： 一种预敏化板，其包括粗糙和阳极氧化的铝板，其上设置有包含染料的正性工作感光性组合物层，并且可以在曝光时使其变得可溶于显影剂，其中发光部分中的染料浓度 与感光层的其他部分相比，靠近或靠近基板的敏感层低。 根据本发明的预感板比现有技术的PS板具有更少的颜色染色，因此具有优异的板质量检查性能。 预印版还具有显着优点，在打印期间图像删除区域周围污渍较少，印刷耐久性高。
-
-
搜索结果
3 条记录 (耗时 0.013 秒)
