The mesh count and wire diameter of stainless steel printing mesh determine the width of the printable graphic. In terms of production processes, the requirements for stainless steel printing mesh are not high for the two processes of silver and aluminum backing printing, mainly considering the printing thickness. Generally, 250-280 mesh count can meet the requirements. The wire diameter is between 0.04-0.028, and different forms of stainless steel printing mesh should be selected for printing different solar cells.
Silver printing is the printing process with the highest printing requirements, mainly to ensure the width of the grid line and the uniformity of the printing film thickness. Generally, 300-330 mesh count is selected, and the width of the grid line after printing depends on the wire diameter of the mesh and the width of the mesh hole. Generally, the best wire diameter is between 0.027-0.022, and the following calculation formula is used for printing: pr=2.54/t6+hp.
In the production of advanced batteries, high mesh count stainless steel printing mesh such as 635 mesh, 600 mesh, 500 mesh, 450 mesh, and 400 mesh are frequently used. 325 mesh, 300 mesh, and 250 mesh are the most common mesh counts for printing. Mesh below 200 is generally considered low mesh count stainless steel printing mesh. Different forms of stainless steel printing mesh are used for printing different batteries.