How is the mesh number of the filter defined? Is there any standard?

The mesh number of the filter refers to the number of meshes per square centimeter (cm2). In the specifications of screen products, the unit used to express mesh number is hole/cm or line/cm. In countries and regions where English units of measurement are used, the mesh number is expressed in holes/inches or lines/inches. The mesh number can usually explain the density between screen wires. The higher the mesh number, the denser the screen and the smaller the mesh number. On the contrary, the lower the mesh number, the thinner the screen. For example, there is 150 mesh/inch, that is, there is 1 50 mesh wire within1inch. The smaller the mesh number, the worse the ink passability, and the larger the mesh number, the better the ink passability. When choosing a screen, you can choose different mesh screens according to the accuracy requirements of printing.