[Screen Edition]
Choose a special yellow mesh or do not attract wire mesh; make a color tone silk screen plate, you must be careful to handle small dots. You must dry out fine dots on the screen. The best choice is direct photosensitive coating. The coating should be uniform and smooth. Otherwise, the transfer point to the substrate will become larger and the image will be blurred.
It is very difficult to produce smooth and even and beautiful screens for color tone silk screens. It must be coated with care. The photosensitive film should be coated according to the nine-point test method and high-quality direct emulsions should be used to achieve color tone adjustment. Printing requirements.
[light source]
Exposure According to the manual or normal operating experience using the correct exposure time, exposure is correct for color tone printing is very important, over- or underexposure will affect the network, but also affect the quality and color of the printed image. The exposure has a great relationship with the light source. In order to make the light source consistent, it is better to change the new light source.
[print]
In the printing process, moire often occurs; when you overprint, you need to superimpose between screens. When different colors of screens are overprinted together, moire will inevitably occur. Moreover, there are also moire patterns and film separations. Great relationship. To ensure that the printing changes in the same color and colors, as a person with screen printing work experience, I know that the four-color overprinting film dot angle, here I suggest the black is 90 °, the red is 45 °, the blue is 75 °, yellow is 35°. Although there are screen angles of the correct color tone, it is also necessary to pay attention to the angle of the screen. For color tone printing, it is better to use a non-deformable aluminum frame to pull the screen, so that it is best to make a diagonal when printing.
Xinxin Industry and Trade
China-Hong Kong Screen Printing Equipment Industry Co., Ltd. - He An Liu
