AQUEOUS SURFACE CONDITIONER AND LUBRICANT FOR FORMED METAL SURFACES WHICH IS APPLIED DURING OR AFTER CLEANING OF THE METAL SURFACE

摘要

The coefficient of friction of aluminum can surfaces after alkaline cleaning and drying can be substantially reduced by adding to the alkaline cleaner a mobility enhancing additive, preferably a surface active quaternary ammonium salt with hydroxyethyl substituents on the quaternary nitrogen atoms. A can surface suitable for automatic conveying and high quality lacquer or printing ink adhesion can thereby be obtained, if desired without including any substantial fluoride content in any treatment stage.