Method for treatment of metal surface

摘要: A method for the treatment of a metal surface, which comprises applying treating liquid comprising an emulsion and water-soluble chromium compound containing 30 to 90% by weight hexavalent optionally water-insoluble white carbon surface drying resultant, said substantially no alkali ion, being prepared emulsion-polymerizing α, β-monoethylenically unsaturated monomer in presence emulsifier selected from group consisting polyacrylic acid copolymer acrylic methacrylic acid, acrylamide, methacrylamide hydrophilic formula: ##STR1## wherein is hydrogen atom or methyl; R substituted unsubstituted alkylene having 2 4 atoms; X functional at least one oxygen atom, phosphorus sulfur used amount 20 parts more (in solid content) 100 α,β-monoethylenically monomer.