Process for the electrochemical graining of aluminum for use...

Details Process for the electrochemical graining of aluminum for use... Process for the electrochemical graining of aluminum for use...

C - Chemistry, Metallurgy

25

F

204/86.5

C25F 3/04 (2006.01) B41N 3/03 (2006.01) C25F 3/20 (2006.01)

Patent

CA 1288722

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the electrochemical graining of aluminum or aluminum alloys useful for printing plate supports, in which process an acid electrolyte containing .beta.-diketo compounds and an aluminum salt is employed; preferred are hydrochloric or nitric acid with an acetylacetone admixture. The printing plate supports grained by the process possess a particularly uniform, pit-free and overall graining structure.

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