For the plexiglass screen printing process which is completed by multi-person division and cooperation, only the upper process is applied to the next process, and the self-inspection and self-examination of each process are carried out, and the quality is strictly controlled, so that the plexiglass wire that the user meets can be produced. Web printing products. The perfect match between screen, ink and printing is a prerequisite for good print. The quality of the printing plate directly determines the quality of the printed product. Printing is only the inspection of the quality of the plate making. However, under the premise of the quality of the printing plate, the printing workers are not taken lightly, and the ideal printed matter cannot be obtained. Cause more waste, presenting defective or scrap.
Before batch printing, the printing screen should be fixed and the ink is printed, and the layer, ink color, ink layer thickness, specification and registration precision of the layout image should be checked. If the registration accuracy is poor, you can stop the adjustment by the fine adjustment knob on the front of the frame; if the color of the ink is 纰谬, check whether the wrong ink can be used and change it immediately; if the ink is bad, wipe the plate part with the solvent to make the ink The passing function and the wettability of the substrate are inevitable; if there is a big difference in the level of harmony of the graphic, the printing screen should be changed immediately. In the printing process, you must pay attention to the following points.
(1) Look at courtesy. Because the frame moves back and forth during the printing, the plate and the frame are collided and vibrated during the reciprocating operation. When the fire occurs with a small displacement, the overprinting is inaccurate and the product is indecent. quality. It is necessary to look politely, find out in time, and adjust in time.
(2) Always check the proofs. If the plexiglass product is found to be out of ink, the screen should be wiped with a clean cotton cloth immediately. This is mostly due to the clogging of the screen on the printing plate with a broken plastic film or ink crust. If the ink color is found to be uneven or light, if the viscosity of the ink is too large, immediately stop the solvent to dilute the viscosity of the ink, and use gasoline to wipe the graphic part of the layout to prevent bleeding or blocking the net for continuous operation.
(3) The stacking of semi-finished products should be neat. In the stacking process of the semi-finished products, it is inevitable that the two sides of the plexiglass plate are stacked vertically. Otherwise, the plexiglass plate is formed into an upper bow shape due to its own gravity, and both sides of the plexiglass plate are upturned and not flattened, which causes difficulty in transferring the plexiglass plate during printing, and often exhibits a phenomenon of breakage. The plexiglass plate is not normal, and can be flattened with cardboard. At the same time, the height of the plexiglass plate is often stopped by the adjustment knob of the paper separation mechanism, so that the plexiglass plate can be smoothly conveyed, and the printing process is stopped smoothly.
(4) The blades of the drying device are damaged due to temporary use, and some spaces are different from the operation of the main machine, which often causes the printed matter on the paper frame to be disordered. At this point, you should take your eyes and hands quickly, and immediately remove them from the top of the chaotic sheet. It is best not to make the ink film face opposite, so as not to cause defective or defective products.
Therefore, only by paying attention to the links that affect the quality of printing can we produce beautiful plexiglass screen prints, such as plexiglass advertising products, improve the yield, reduce the cost and increase the efficiency, and make the enterprise in an invincible position in the market competition.
