Patent ID: 7618526

Claim:
A method for producing a plated film, comprising the steps of: carrying a resin film having a conductive surface into a plating solution accommodated in a plating bath provided with an anode, passing the resin film through the plating solution and, carrying the resin film from the plating bath to run along a cathode roll which is arranged outside and in the downstream side of the plating bath, wherein the conductive surface of the resin film is brought into electrical contact with the cathode roll through an electrolyte layer for electroplating a plating layer on the conductive surface of the film, and wherein the following relation is satisfied: E 0 >[( I/Cs )× d]/σ where E 0 is the reduction potential of a metal constituting the plating layer; I is the value of a current flowing through the cathode roll for plating; Cs is the area of the conductive surface of the resin film in electrical contact with the cathode roll through the electrolyte layer; d is the thickness of a gap between the cathode roll and the conductive surface of the resin film; and σ is the conductivity of a liquid constituting the electrolyte layer, and further wherein the carrying tension T of the resin film is from 10 N/m to 320 N/m.