The elliptical dot-like printing rate is similar to a circular dot, and is also a commonly used dot shape for screen printing. The selection of the number of screen lines The number of screen lines in the screening elements is at the core position, which is related to the color and level of the original pattern on the printing fabric, especially the image clarity. The selection of the number of screen lines for four-color screen printing depends on the printed screen, the grey cloth and the product use, etc., and the number of screen lines for some printed products is given. The choice of the number of grey cloths and the number of screen lines is selected to match the degree of texture of the surface of the substrate. The choice of the number of screens and screens is theoretically speaking, the higher the number of screen lines, the clearer and more delicate the original pattern is. However, screen printing is limited by the diameter of the screen and the weaving, and the number of screens is limited. The mesh size is more than three times the number of screen lines of the film to better reproduce the original pattern. Below this number, many dots are blocked by the screen and cannot be printed. The high mesh screen commonly used for printing is generally about 200 mesh. Exceeding this mesh number, not only the cost of the wire mesh is increased, but also the difficulty of plate making is increased, the preparation of the color paste is difficult, the printed color paste is very thin, and the printed product is layered. Not feeling strong. Screen printing is adapted to the number of screen lines below 60 lines. If the number of screen lines is not properly matched with the number of mesh screens, it is easy to produce a moire that destroys the tone level, which is improper for the eye line. This is the speciality of screen printing. The use of a screen with a mesh number of 6 times the number of screen lines eliminates this type of moiré, which is actually difficult to achieve. It is neither economical to use a screen with a high mesh number, and it is unfavorable for the vividness of the printing color with a low number of screen lines. Led Solar Lights,All In One Solar Street Light,Solar Panel Street Light,Garden Street Light Jiamei Energy(hongkong) Limited , https://www.jiameilight.com