Screen printing and screen printing machine Screen printing is a type of hole printing. Screen printing involves stretching a mesh of fabric over a screen frame and making a plate for printing.Perforated plate printing includes hollowed-out plate, as soon as possible, spray plate and jie jie printing method. Jie Jie printing method is screen printing. Screen printing method is most widely used in hole printing industry.Compared with other printing methods, screen printing is outstanding in the
Production technology of electrode mesh plate The screen plate of screen printing consists of screen frame, screen and mask pattern.The screen is stretched on the screen frame, and then coated with mask graphics, using photographic etching method to produce the graphics on the screen. screen frame The screen frame is used to fix the screen, and the relative position between the screen and the printing base is fixed during screen printing. 1. Selection of screen f
Silk screen printing The screen printing process of solar cells USES the screen printing method to complete the production of back field, back electrode and positive grid wire metal electrode, so as to lead out the generated current.The screen printing process has three purposes. 1) Electrode printing is carried out on the silicon wafer behind the P-N junction and $film. 2) The carrier generated by the light can be successfully exported to realize photoelectric conversion of
The parameters affecting the accuracy of screen printing, mainly mentioned the screen's geometric characteristics, ink these two most important factors.The screen geometry characteristic is the foundation of screen printIng.Based on the analysis of mesh number and diameter, the calculation formula of minimum mesh point is compared, and it is proposed that the resolution calculation should be carried out under the influence of tension, so as to obtain more accurate results.The surface conditio
Influence of screen parameters on printing film thickness In mesh screen printing, the control of ink layer thickness plays an important role.Lithography and letterpress prints have an ink layer only a few microns thick, and gravure prints can be as thin as 15 microns.Under general conditions, screen printing ink layer thickness of 10-20 microns, special thick film printing can reach 100 microns.It can be seen that the ink layer of screen printing is not only thick, but also wide adjust
Screen parameters and plate characteristics Plate thickness and imprinting accuracy The thickness of the plate is divided into two parts, one is EOM(emulsion over mesh), the other is mesh thickness Ft.Eom-hs (total thickness) one Ft, the larger d, the thicker the screen. In general, the larger the Hs, the greater the ink adhesion thickness.In the process of printing, EOM is in contact with the substrate, and its nature is directly related to the quality of printing.If the th