The anti-fingerprint plate is a kind of composite coating plate obtained after anti-fingerprint treatment on the surface of the galvanized sheet. The surface of the anti-fingerprint steel plate is smooth and flat, and the tolerance is small. The anti-fingerprint treatment technology first used a coating containing hexavalent chromium. At home and abroad, the galvanized sheet is generally used for passivation treatment, and then an organic coating (fingerprint-resistant film) is applied on the passivation film to produce a fingerprint-resistant sheet.
Do you know how the anti-fingerprint board was researched and developed? We all know that fingerprint-resistant boards are not easy to leave fingerprints, so what is the reason?
The anti-fingerprint treatment was originally to meet the requirements of users in the field of home appliances. In the production process of home appliances, due to the needs of the process, many parts are touched by workers many times, and the sweat stains on the hands of the workers will form pollution on the surface of the parts, which will affect the appearance. Therefore, the anti-fingerprint board has been researched and developed.
Features of anti-fingerprint board
Anti-fingerprint treatment technology used coatings containing hexavalent chromium in the early stage. As environmental protection regulations become more and more stringent, hexavalent chromium technology is gradually replaced by trivalent chromium technology and chromium-free technology. Modern chromium-free technology not only has chromium-containing The corrosion resistance of chromium technology, but also has the versatility that chromium technology does not have. Widely used in home appliances, electronics and construction markets.
Types of anti-fingerprint board
One is that after the galvanized sheet is passivated, an organic coating (fingerprint-resistant film) is applied on the passivation film, and the coating method is mainly roller coating.
The other is to add organic resin and colloidal silica to the galvanized passivation solution. After the galvanized steel strip passes through the passivation tank, a composite coating with corrosion resistance and fingerprint resistance is formed on the surface. The coating methods mainly include electrolytic coating and roller coating. Generally, both at home and abroad, the first process is used to produce fingerprint-resistant boards.
Traditional anti-fingerprint panels basically use electro-galvanized panels as substrates. With the continuous improvement and development of hot-dip galvanizing technology and process, the surface quality of hot-dip galvanized sheet has reached a level comparable to that of electro-galvanized sheet, and hot-dip galvanized sheet is cheap and has better corrosion resistance, so it is Hot-dip galvanized sheet as anti-fingerprint substrate is gradually becoming the mainstream.
Post time: Feb-27-2023