NON-CYANIDE BRASS PLATING BATH MIXTURE, PRODUCTION OF METALLIC FOIL HAVING BRASS LAYER AND METHOD FOR USING NON-CYANIDE BRASS PLATING BATH

摘要

PROBLEM TO BE SOLVED: To provide a non-cyanide brass plating layer for producing metallic foil having a brass layer thereon. ;SOLUTION: The non-cyanide brass plating bath mixture contg. copper, zinc, metal polyphosphate and orthophosphate and without contg. cyanide is provided. The process for producing the metallic foil having the brass layer is provided. The process for production includes a step of proving the metallic foil and bringing the metallic foil into contact with the non-cyanide brass plating bath contg. the copper, zinc, metal polyphosphate and orthophosphate and without contg. the cyanide and a step for passing a current to the brass plating layer and taking out the metallic foil having the brass layer.;COPYRIGHT: (C)1997,JPO