Electrochemical tape cleaning

Details Electrochemical tape cleaning Electrochemical tape cleaning

C - Chemistry, Metallurgy

25

F

204/126, 204/85

C25F 1/00 (2006.01) C25F 7/00 (2006.01) G11B 5/84 (2006.01) G11B 23/50 (2006.01)

Patent

CA 1084442

ABSTRACT OF THE DISCLOSURE An apparatus and method for cleaning oxidation and other contamination from metal foil recording tape by passing it through a mercury bath to place a positive charge on the tape after which the tape is cooled and, in one modification, pre- conditioned as the tape is advanced through a negatively charged acid bath. The tape is then rinsed and jet sprayed in a water bath and is dewatered in an alcohol bath prior to being wound on a take-up reel. Air knives are provided at the exit of each bath to strip off the liquid from that bath.

241676

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