Plasma cleaning before glass coating
During the glass manufacturing process, there are often residual organic pollutants such as oil, wax, fingerprints, grease, etc. on the surface. The existence of these residual contaminants is not conducive to the process of coating, spraying, printing, bonding, welding, etc. Therefore, before proceeding to the next step, these contaminants need to be cleaned to ensure the subsequent process quality.
Before the AF, AS, AG, AR coating (spraying) process, plasma cleaning performs fine cleaning, etching and activation on the surface of the substrate, which can obtain a very thin high-tension coating surface, which is conducive to the firm adhesion and thickness of the spraying liquid. evenly.
1. Cleaning: Remove organic matter, resin, dust, oil, impurities, etc. on the surface to increase surface energy.
2. Etching: The surface of the material is modified and roughened, the protrusions on the surface after etching increase, and the surface area is increased.
3. Activation: introduction of oxygen-containing polar groups, such as hydroxyl and carboxyl and other active molecules.
