Precise coating process protective film material

The precision coating molding process is divided into micro-gravure coating, knife coating, and slit extrusion coating according to the coating head. The micro-gravure coating roller is an anilox roller, and the diameter is generally between Φ20mm-Φ50mm, so it is called micro-gravure coating. It is a reverse contact coating method, that is, the rotation direction of the micro-coating roller and the feeding direction of the material film On the contrary, the material film is not pressed against the coating roller by the pressing roller. The doctor blade coating roller is a comma doctor blade. The characteristic of the comma roller coating is the combination of blade blade and roller blade, which has less influence on the glue thickness than glue, and the coating thickness is easy to adjust. It can coat high viscosity glue. When the width is large, Can be adjusted horizontally. Slit extrusion coating is a common high-precision coating method. The coating glue is pressed from the memory through the supply pipe to the nozzle, and the glue is ejected from the nozzle to transfer to the coated substrate.