The surface treatment technologies for acrylic display stands mainly include the following:
Grinding: This is one of the basic surface treatment technologies for acrylic display stands. Fine grinding removes burrs and imperfections generated during the cutting and processing of acrylic, making the surface smooth and flat.
Polishing: Polishing technology gives acrylic display stands a brilliant shine. Polishing is divided into mechanical polishing and chemical polishing. Mechanical polishing typically uses a high-speed rotating polishing wheel and polishing paste to repeatedly rub the acrylic surface, giving it a mirror-like shine. Chemical polishing utilizes specific chemical solutions to react with the acrylic, removing microscopic unevenness on the surface and forming a bright oxide film. This oxide film not only has good gloss but also improves the acrylic's corrosion resistance to a certain extent.
Screen Printing Technology: Through screen printing, various exquisite patterns, text, and logos can be printed on the acrylic surface. The key to screen printing lies in the selection of inks and the control of the printing process to ensure that the patterns are vibrant, have strong adhesion, and are durable and do not fade.
Coating: Coating can give acrylic display stands some special properties. For example, applying a UV-protective film can prevent acrylic from yellowing due to prolonged exposure to sunlight; applying a metallic film can give the display stand a metallic texture and luster, suitable for displaying high-end products. The key to coating technology lies in the uniformity and adhesion of the film layer.
Surface hardening treatment: also known as surface coating, this involves applying a layer of high-hardness material to the surface of the board to increase its hardness. Suitable materials include inorganic substances, silicone coatings, fluorocarbon paints, etc. This treatment is divided into two types: physical coating and chemical coating. Physical coating relies on van der Waals forces to bond with the sheet, while the molecules in chemical coatings can cross-link with the functional groups in the side chains of the sheet, generating stronger chemical bonds.
PVD surface coating treatment: Metals, metal oxides, or other inorganic substances are deposited on the surface of the sheet through physical phase deposition (PVD) to improve hardness and wear resistance.
Surface chemical treatment: Primarily uses lasers and other methods to change the surface structure of the sheet, thereby improving surface properties.
Flame polishing, buffing wheel polishing, diamond polishing, and hand polishing: These are common polishing techniques for acrylic sheets. Through different polishing processes, the gloss of acrylic can be restored or improved, making the product look brighter and more beautiful.