STRIPPING LIQUID FOR RESIST COATING, METHOD FOR ETCHING ALUMINUM PLATE, AND ALUMINUM ETCHED PLATE

摘要

PROBLEM TO BE SOLVED: To provide a stripping liquid for a resist coating to form a fine image, to provide a method for etching an aluminum plate and to provide an aluminum etched plate. SOLUTION: After an alkali-soluble energy ray-sensitive resist coating is formed on an aluminum plate, the resist is exposed to light to form an image and developed with a weak alkaline solution to form the image. Then the exposed aluminum plate is removed by etching with an etching liquid. The stripping liquid is used to further strip the residual resist coating. The stripping liquid for the resist coating comprises at least one kind of alkaline aqueous solution selected from mixture aqueous solutions of alkali metal compounds and sodium hydrogen carbonate. COPYRIGHT: (C)2005,JPO&NCIPI