Pay attention to three points when coloring screen printing ink:
① When mixing ink, try to add as little ink of different colors as possible. The fewer types of colored inks, the better the mixing effect.
②Adopt the principle of "from light to dark", regardless of the preparation of light-colored or bright colored inks, when the hue is close to the model, be careful. It is best not to mix inks produced by different manufacturers, and try to use inks of different colors from the same manufacturer for color matching, otherwise uneven color tone will occur, and in severe cases, condensation will occur and the ink will be scrapped.
③Some silk screen printing inks are dried by drying. Light colors are lighter than undried ones, and dark colors are darker after drying.
In addition, whether the color tone of the ink is different before and after drying during printing is a problem that is easily overlooked. Generally speaking, through natural drying (solvent volatile ink), the substrate is plastic, metal, paper, glass, etc., and the color will not change; but if it is a color material for ceramics, the color will not appear until after burning and oxidation. , can only be adjusted by experience. For screen printing inks that are dried by heat-setting and light-setting, the color changes in shades, as mentioned above. When the amount of ink adjustment is large, the ink adjustment machine can be used to complete the color adjustment in a short time.
