PICKLING METHOD OF ALUMINUM CAN BODY

摘要

PROBLEM TO BE SOLVED: To provide a pickling method of an aluminum can body capable of suitably stabilizing by effectively using a surfactant contained in an acidic detergent. SOLUTION: In the pickling method of the aluminum can body performed by jetting the acidic detergent in a tank to the aluminum can body passing above the tank to clean and circulating the acidic detergent to the tank, an acidic aqueous solution containing 100-5000 PPM polyethylene glycol type detergent nonionic surfactant A having the HLB value of 14-18 and a low foaming nonionic surfactant B having the HLB value of 2-12 in the content ratio A:B of 10:90 to 90:10 is used as the acidic detergent and the acidic detergent in the tank is removed from the under side of the liquid level to the outside.