12th International Conference on Zinc & Zinc Alloy Coated Steel Sheet - GALVATECH 2021

In the past, both galvanized (GI) and galvannealed (GA) steel sheets with white color coating produced by continuous coating line (CCL) has been widely used for home appliance such as refrigerator, washing machine and air conditioner. On the other hand, in premium home appliance market, either mechanically polished or physical vapor deposited (PVD) stainless steel sheets was used due to their aesthetical appearance, although rather higher price is known as one of the limitation for alternation of white color coating. In the present study, to answer more economical aspect, an acrylic resin coating with black and yellow colors having different dispersions such as nano carbon and organic pigment for industrial CCL has been successfully developed on hair lined EG, GI and STS steel sheets. The key factor for an effective dispersant of nano carbon and organic pigment is represented by its ability of homogeneous dispersing and stable properties. Mechanical properties, hardness, chemical and detergent resistance were also measured. Up to date, more than forty thousand tons were commercially produced for home appliance and construction.