Method and apparatus for producing etched plates for graphic printing
    1.
    发明授权
    Method and apparatus for producing etched plates for graphic printing 失效
    用于制作图形印刷用蚀刻板的方法和装置

    公开(公告)号:US5112453A

    公开(公告)日:1992-05-12

    申请号:US788244

    申请日:1991-11-05

    IPC分类号: C25F3/02 C25F7/00

    CPC分类号: C25F3/02 C25F7/00

    摘要: There is provided an apparatus and a process for using same for etching a metallic object (22), suitably a plate to prepare a metallic printing plate. The object is partially covered by a resist surface (14) wherein the exposed portions (16) of said metal, will be exposed to the action of an electrolytic etchant force. The apparatus comprises a bath (10) for an aqueous electrolyte (12), an electrode (23), suitably but not critically metallic, immersible in said electrolyte, which will serve as the cathode, a source of direct current voltage (32), which may further be associated with adjustment means (38) for controlling the applied voltage. The voltage should be adjustable to operate accurately within a rather narrow voltage range, such that the minimum voltage shall be at least that of the ionization potential of the metal of the metal object in the electrolyte chosen and the maximum shall not substantially exceed the sum of the decomposition voltage of the aqueous electrolyte and the over-voltage of the cathode selected.

    摘要翻译: 提供了一种用于其用于蚀刻金属物体(22)的装置和方法,合适地是用于制备金属印刷版的板。 该物体被抗蚀剂表面(14)部分地覆盖,其中所述金属的暴露部分(16)将暴露于电解蚀刻剂力的作用。 该装置包括用于含水电解质(12)的电解液(10),适于但非临界金属的电极(23)浸没在所述电解液中,其将用作阴极,直流电压源(32), 其可以进一步与用于控制所施加的电压的调节装置(38)相关联。 电压应该是可调节的,以在相当窄的电压范围内精确地工作,使得最小电压应至少为所选择的电解质中金属物体的金属的电离电位的电压,而且最大电压基本上不应超过 电解液的分解电压和所选阴极的过电压。

    Electrolytic etching process and apparatus
    2.
    发明授权
    Electrolytic etching process and apparatus 失效
    电解蚀刻工艺及设备

    公开(公告)号:US5102520A

    公开(公告)日:1992-04-07

    申请号:US606871

    申请日:1990-10-31

    CPC分类号: C25F3/02 C25F7/00

    摘要: There is provided an apparatus and a process for using same for etching a metallic object, suitably a plate to prepare a metallic printing plate. The object is partially covered by a resist surface wherein the exposed portions of said metal, will be exposed to the action of an electrolytic etchant force. The apparatus comprises a bath for an aqueous electrolyte, an electrode, suitably but not critically metallic, immersible in said electrolyte, which will serve as the cathode, a source of direct current voltage, which may be adjustable for controlling the applied voltage. The voltage should be adjustable to operate accurately within a rather narrow voltage range, such that the minimum voltage shall be at least that of the ionization potential of the metal of the metal object in the electrolyte chosen and the maximum shall not substantially exceed the sum of the decomposition voltage of the aqueous electrolyte and the over-voltage of the cathode selected.

    摘要翻译: 提供了一种用于其用于蚀刻金属物体的装置和方法,合适地是用于制备金属印刷版的板。 该物体被抗蚀剂表面部分覆盖,其中所述金属的暴露部分将暴露于电解蚀刻剂力的作用。 该装置包括用于电解质水溶液的电极,适于但非临界金属的电极,浸入可用作阴极的所述电解质中,直流电压源可用于控制所施加的电压。 电压应该是可调节的,以在相当窄的电压范围内精确地工作,使得最小电压应至少为所选择的电解质中金属物体的金属的电离电位的电压,而且最大电压基本上不应超过 电解液的分解电压和所选阴极的过电压。