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    • 45. 发明授权
    • Producing planographic printing plate requiring no dampening water
    • 生产不需要润版水的平版印刷版
    • US3933495A
    • 1976-01-20
    • US359959
    • 1973-05-14
    • Asaji KondoShizuo MiyanoKenichiro Yazawa
    • Asaji KondoShizuo MiyanoKenichiro Yazawa
    • G03F7/00G03F7/075G03F7/02
    • G03F7/0752
    • A presensitized planographic printing plate which can be used in both negative and positive work comprising a support, a layer formed on the support of a photosensitive substance prepared by the reaction at a pH of not more than 7.5 of a diazonium compound with a coupling agent, e.g., hydroxybenzophenone, and a layer formed on the photosensitive layer of a "one-package" silicone rubber curable at room temperature. A planographic printing plate per se is produced by imagewise exposing the presensitized plate through a negative or positive film, and treating the exposed plate with a treating liquid capable of removing those portions of the presensitized plate which correspond to the image area of the original. Dampening water is not required when printing is carried out using the resulting printing plate.
    • 可以用于阴性和正性工作的预觉平版印刷版,其包含载体,通过在7.5重量份重氮化合物与偶联剂的pH下反应制备的感光性物质的载体上形成的层, 例如羟基二苯甲酮,以及在室温下可固化的“单包装”硅橡胶的感光层上形成的层。 平版印刷本身本身是通过使预敏板通过负片或正片进行成像曝光而制成的,并且用能够除去与原稿的图像区域相对应的预敏化板的那些部分的处理液处理曝光的板。 使用得到的印版进行打印时,不需要防潮水。