PRODUCTION METHOD FOR ZINC-ELECTROPLATED STEEL SHEET

摘要

Provided is a production method for a zinc-electroplated steel sheet that has a high degree of whiteness and that limits decreases in electrical current efficiency. A zinc-electroplating process is carried out in a zinc-electroplating bath containing less than 0.01 mass ppm total of one or more organic compounds having a 2-benzothiazolylthio group. Next, a zinc-electroplating process is carried out in a zinc-electroplating bath containing a total of 0.01-3 mass ppm of one or more organic compounds having a 2-benzothiazolylthio group so that the amount of deposited zinc constitutes 1-50% of the entire plating layer.