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    • 1. 发明专利
    • Offset printing method and offset printing press
    • 偏移打印方式和偏移打印
    • JP2008110521A
    • 2008-05-15
    • JP2006294323
    • 2006-10-30
    • Tokyo Kikai Seisakusho Ltd株式会社東京機械製作所
    • SUGYO YASUSHI
    • B41F13/18B41F30/00B41F30/02
    • B41F13/193B41F7/12B41P2227/11
    • PROBLEM TO BE SOLVED: To contrive to solve the problem that ink left in a printing plate mounting groove is transferred to a blanket surface and further to a web resulting in remarkably marring printing quality. SOLUTION: The solution of the problematic point depends upon a newspaper offset printing method by which printing is performed by rotating two blanket cylinders in opposite directions under the phase relationship that the blanket mounting groove of one blanket cylinder is shifted in its rotational direction by the peripheral length corresponding to the printing pitch printed by a printing plate 1 under the condition that the blanket mounting groove of the other blanket cylinder occupies a position at which the web is clamped, and a newspaper offset printing press in which the blanket mounting grooves of two adjacent blanket cylinders are provided so that the peripheral length of the blanket lying between the blanket mounting grooves is provided two times as long as the printing pitch printed by the printing plate 1 and, in addition, the blanket mounting grooves of the two adjacent blanket cylinders are provided at a position shifted in its rotational direction by the peripheral length corresponding to the printing pitch printed by the printing plate 1 from the position at which the web is clamped by the two blanket cylinders. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了解决留在印版安装槽中的油墨被转印到橡皮布表面而进一步转印到纸幅上的问题,导致打印质量显着降低。 解决方案:问题点的解决方案取决于报纸胶版印刷方法,通过该打印方法通过在一个橡皮布滚筒的橡皮布安装槽沿其旋转方向移动的相位关系下以相反方向旋转两个橡皮布滚筒进行打印 在另一个橡皮布滚筒的橡皮布安装槽占据卷筒纸被夹紧的位置的条件下,与由印刷板1印刷的印刷间距相对应的周长,以及报纸胶版印刷机,其中橡皮布安装槽 设置两个相邻橡皮布滚筒,使得位于橡皮布安装槽之间的橡皮布的周长设置为由印刷板1印刷的印刷间距的两倍,另外,两个相邻的橡皮布滚筒的橡皮布安装槽 橡皮布滚筒设置在沿周向倾斜方向转动的位置上 对应于由印刷板1从由两个橡皮布滚筒夹紧的位置的印刷间距。 版权所有(C)2008,JPO&INPIT