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    • 2. 发明授权
    • Production method for an aluminum support for a lithographic printing plate
    • 平版印刷版铝支架的制造方法
    • US06596150B2
    • 2003-07-22
    • US09320445
    • 1999-05-27
    • Atsuo NishinoYoshitaka MasudaHirokazu SawadaAkio UesugiMasahiro Endo
    • Atsuo NishinoYoshitaka MasudaHirokazu SawadaAkio UesugiMasahiro Endo
    • B01N303
    • B41N3/04B41N3/034C23F1/36C23G1/125C25F3/04
    • Disclosed is a production method of an aluminum support for a lithographic printing plate, capable of stable and low-cost production of an aluminum support for a lithographic printing plate, the support being scarcely subject to generation of treatment unevenness called streaks or grainy unevenness ascribable to the different in the aluminum dissolving rate due to the difference in the orientation of the crystal grain. The aluminum support is produced by surface graining and then polishing an aluminum plate or by polishing an aluminum plate while etching it in an aqueous acid or alkali solution. The aluminum plate may be subjected to polishing and then to anodization or may be subjected to polishing, to surface graining, again to or not to polishing and then to anodization. A production method for producing a high-quality support for a lithographic printing plate, free of local unevenness is also disclosed.
    • 公开了用于平版印刷版的铝载体的制造方法,其能够稳定且低成本地生产用于平版印刷版的铝载体,所述载体几乎不产生称为条纹或颗粒状不均匀性的归因于 由于晶粒取向的差异,铝溶解速率不同。 铝载体通过表面粗糙化,然后抛光铝板或通过抛光铝板,同时在酸性或碱性水溶液中蚀刻而制备。 可以对铝板进行抛光,然后进行阳极氧化,或者进行抛光,再进行抛光,然后进行阳极氧化处理。 还公开了一种用于生产没有局部不平坦的平版印刷版的高品质支撑体的制造方法。
    • 4. 发明授权
    • Method for producing support for planographic printing plate, support for planographic printing plate, and planographic printing plate precursor
    • 制备平版印刷版支撑体的方法,平版印刷版支撑体和平版印刷版前体
    • US06780305B2
    • 2004-08-24
    • US10072951
    • 2002-02-12
    • Atsuo NishinoYoshitaka MasudaHirokazu SawadaAkio Uesugi
    • Atsuo NishinoYoshitaka MasudaHirokazu SawadaAkio Uesugi
    • C25F700
    • B41N3/034C25F3/04
    • The invention provides a method for producing a support for planographic printing plates which comprises a step of roughening the surface of an aluminum plate and in which the surface-roughening step includes (1) a pre-electrolytic surface-roughening step of electrolytically roughening the surface of an aluminum plate in an aqueous hydrochloric acid solution, (2) an alkali-etching step of etching the roughened surface of the aluminum plate with an alkali solution, (3) a desmutting step of contacting the etched aluminum plate with an aqueous sulfuric solution having predetermined sulfuric acid and aluminum ion concentrations at a predetermined temperature for 1 to 180 seconds, and (4) an electrolytic surface-roughening step of processing the desmutted aluminum plate in an aqueous nitric acid solution with an alternating current being applied thereto. The invention enables stable and inexpensive production of planographic printing plate supports even from regenerated aluminum.
    • 本发明提供了一种用于制备平版印刷版的支撑体的方法,其包括使铝板的表面粗糙化的步骤,其中表面粗糙化步骤包括(1)电解粗糙化表面的预电解表面粗糙化步骤 在铝盐水溶液中的铝板,(2)碱蚀刻步骤,用碱溶液蚀刻铝板的粗糙表面,(3)使蚀刻的铝板与硫酸水溶液接触的去污步骤 在预定温度下具有预定的硫酸和铝离子浓度1至180秒,以及(4)在施加交流电的硝酸水溶液中处理未分解的铝板的电解表面粗糙化步骤。 本发明能够稳定且廉价地生产甚至从再生铝制成的平版印刷版支撑体。
    • 7. 发明申请
    • Method of manufacturing lithographic printing plate support
    • 平版印刷版支架的制造方法
    • US20060057500A1
    • 2006-03-16
    • US11227167
    • 2005-09-16
    • Hirokazu SawadaAtsuo NishinoAkio Uesugi
    • Hirokazu SawadaAtsuo NishinoAkio Uesugi
    • G03F7/00
    • B41N3/034C25F3/04
    • Disclosed is a method of manufacturing a lithographic printing plate support including the step of: subjecting an aluminum plate at least to electrochemical graining treatment in which alternating current is passed through the aluminum plate in an aqueous solution containing hydrochloric acid so that the total amount of electricity when the aluminum plate serves as an anode is at least 250 C/dm2, thereby obtaining a lithographic printing plate support, wherein the aluminum plate contains not more than 30 ppm of Cu and 10 to 200 ppm of at least one element selected from the group consisting of Ga, V, Zn, In, Ni, Pb and Cr, contains at least 15 ppm of Fe in a form of a solid solution, and has a pattern of recessed and protruded portions formed on a surface thereof. By this method, a lithographic printing plate support which can be used for a presensitized plate excellent in various properties such as press life, scumming resistance and resistance to piling is obtained without performing mechanical graining treatment using nylon brushes and an abrasive.
    • 公开了一种平版印刷版支撑体的制造方法,包括以下步骤:至少对铝板进行电化学粗化处理,其中交替电流通过含有盐酸的水溶液中的铝板,使得总电量 当铝板作为阳极为至少250C / dm 2时,从而获得平版印刷版支撑体,其中铝板含有不超过30ppm的Cu和10-200ppm的 选自Ga,V,Zn,In,Ni,Pb和Cr中的至少一种元素含有至少15ppm的固溶体形式的Fe,并且具有形成在 其表面。 通过这种方法,可以获得可以用于具有压延寿命,耐浮渣性和耐打桩性等各种性能的预敏板的平版印刷版支撑体,而不用尼龙刷和研磨剂进行机械粗化处理。