Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating electrolytic or nonelectrolytic coating after it is...
Reexamination Certificate
2008-07-08
2008-07-08
Nguyen, Nam X (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Treating electrolytic or nonelectrolytic coating after it is...
C205S151000
Reexamination Certificate
active
07396448
ABSTRACT:
There are provided a plating method for a roll and a grinding method before a cell is formed in which copper sulfate plating having a uniform thickness without any particles or pits can be applied to the roll for a gravure printing, both a middle finish grinding and a mirror surface finish grinding not depending on a grinding stone grinding can be carried out in a short period of time and a high quality roll can be provided. The grinding is carried out after applying the copper sulfate plating to the roll to attain a mirror surface finish state. The copper sulfate plating is carried out in such a way that non-soluble anode having a length more than the maximum roll length is ascended to the rotating process roll and approached to the lower surface of the roll, plating liquid having some avoidable impurities becoming a cause of particles or pits removed through a filter so as to perform a plating having no thickened portions at both ends of the roll.
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European Search Report for EP 04 02 3213 completed on Feb. 25, 2005.
Inoue Manabu
Konuma Tomoyuki
Matsumoto Noriko
Shigeta Tatsuo
Sukenari Kazuhiro
Nguyen Nam X
Rader & Fishman & Grauer, PLLC
Think Laboratory Co., Ltd.
Van Luan V
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