The so-called color matching is to use two or more colors, or in addition to the main color palette, and then use a small amount of color adjacent to form a combination of colors. When the color inks are used before deployment, the color to be prepared on the color sample is first exposed separately, and the original (or as it is) color is determined to be the primary color, the inter-color, or the double color. If it is a multicolor, it needs to distinguish the ratio of the main color and the auxiliary color. Secondly, it must be based on the color tones specified in the manuscript, sample debugging, to be compared with the manuscript, the color difference is small or equal, before a large number of deployment, and the time is short, the amount of adjustment should be appropriate. Too few adjustments will cause work stoppages, and the ink will have a different hue, which will affect normal production. Too much will cause unnecessary waste. Toner transfer is usually performed where light is stable or where light does not directly shine.
There are three points to pay attention to in screen printing inks: a. When ink is mixed, ink with different colors should be added as little as possible. The less the type of ink, the better the mixing effect. b. With the principle of “from shallow to deepâ€, besides formulating light-colored or vivid colored inks, care should be taken when the hue is close to the template. Different manufacturers of ink, it is best not to mix calls, as far as possible using the same manufacturer of different colors of ink for color, otherwise it will produce uneven color, in severe cases, there will be condensation and make the ink scrapped. c. Some screen printing inks are dried by drying. Light-colored drying is lighter than unsealed, darker darkness after drying. In addition, it is easy to overlook the problem of whether the hue of the ink is different between before drying and after drying during printing. In general, through the natural drying (solvent evaporation type ink), the substrate is plastic, metal, paper, glass, etc., the color does not change; but if the ceramic used color, due to burning oxidation after the color Can only be color-tuned by experience. For screen printing inks that are dried by thermosetting and light-curing, the color changes in depth, as mentioned above. When the amount of ink is large, you can use the ink adjuster to complete the color adjustment in a short time.
Reprinted from: China Washing & Dyeing Industry Information Center