Patent ID: 8231772

Claim:
A power feeding method for an electrolytic plating method for electrolytically plating a web comprising a conductive surface as at least one of the surfaces thereof in a plating tub, the method comprising: continuously transporting the web, nipping the web with at least two rotating members so that the web faces one end thereof or both ends thereof in a width direction, at least one of the rotating members is used as a feeding electrode and comprises an electrically conductive layer on a surface layer thereof so that the web in the plating tub is power-supplied, and the feeding electrode further comprises an elastic layer inside the electrically conducive layer, or a rotating member on a receiving side which nips the web together with the feeding electrode comprises an elastic member on a surface layer thereof, or the feeding electrode comprises the elastic layer inside the electrically conductive layer and the rotating member on the receiving side which nips the web together with the feeding electrode comprises the elastic member on the surface layer thereof, pressing the electrode onto the web only in a region distant by at least 0.5 mm and at most 20 mm from the end of the web in the width direction with a contacting pressure of at least 0.5 N and at most 100 N per 1 mm of a contact width in the width direction, and rotating the rotating members about the same velocity to a velocity of the transportation of the web.