Method for manufacturing anti-fingerprint surface treated steel sheet having excellent blackening resistance and surface appearance

摘要

The present invention relates to a method for manufacturing a fingerprint-treated steel sheet used in home appliances, etc., and to provide a method for producing a fingerprint-treated steel sheet excellent in blackening resistance and surface appearance.;The present invention provides a method for producing a rubbing surface-treated steel sheet, after electro-galvanizing, reaction temperature: 40-60 ℃, reaction time: 5-20sec, applied current density: 0.01-0.1A / dm2 under the conditions The present invention provides a method for producing an anti-fingerprint surface-treated steel sheet having excellent blackening resistance and surface appearance by subjecting the electro-galvanized steel sheet to Ni flash treatment in a solution having a concentration of 10-50 g / L, followed by reactive chromate and anti-fingerprint resin treatment. Shall be.