PRINTING PRESSURE CONTROL METHOD IN SCREEN PRINTING AND SCREEN PRINTING DEVICE USING SAME

摘要

PURPOSE:To permit a heating filament to be transferred onto the material to be printed in a highly accurate film thickness by a method wherein a plurality of pressure sensors capable of detecting the pressing force of a squeegee upon pressure stretching are arranged around the material on a base stand and, based on the pressure force detected by the pressure sensors, the printing pressure is controlled at the time of screen printing. CONSTITUTION:The material G to be printed on a base stand 12 is covered by a screen 14 capable of transferring a heating filament pattern, the paste 15 containing a conductive frit supplied on the screen 14 is pressingly stretched by a squeegee 13, the material G is impregnated with the paste 15 and a transfer is made in registration with the heating filament pattern. At this time, since a plurality of pressure sensors 16 capable of detecting the pressing force of the squeegee 13 are arranged on the base stand 12 located around the material G, upon passage of the squeegee 13 over these pressure sensors 16, its pressing force can be mechanically detected. A desirable printing pressure is set in a proportional relationship with such measured pressing force, whereby the thickness of the printing layer can be controlled.