FORMATION OF FINE THROUGH HOLE ON ALUMINUM FOIL, SOLUTION FOR CORROSION FOR THE METHOD AND ALUMINUM FOIL HAVING FINE THROUGH HOLE

摘要

PROBLEM TO BE SOLVED: To provide a method for forming many fine through holes on aluminum foil, to provide a soln. for corrosion for the method and to provide aluminum foil in which fine through holes are formed. ;SOLUTION: This soln. for corrosion for forming fine through holes on aluminum foil has at least one acid selected form inorganic acids and organic acids, an inorganic chlorine compd. and a nonionic surfactant as effective components. The method for forming fine through holes on aluminum foil is the one in which aluminum foil is brought into contact with the soln., and the aluminum foil has a form in which ununiform many fine through holes are formed.;COPYRIGHT: (C)2000,JPO