What is the ink preparation and dilution process?

Ink adjustment process 1. Master the system, color, color saturation, viscosity, fineness and other indicators of the ink used. 2. Review the proofs and customer requirements, process requirements, hue requirements, and ink usage requirements, and have an in-depth understanding of the color sequence arrangement of each color group, the number of prints of the product, the amount of ink, and the blending of the main colors. 3． The solubility of the diluent and the ink resin, the temperature deviation and the ratio of the diluent are related. If the temperature is high, the slow-drying diluent should be used. At the same time, the dissolution effect and evaporation speed also play a very important role in the printing quality of the product, so the appropriate diluent should be selected according to relevant conditions. 4. Before printing, prepare ink and thinner. 5. During the short period of overprinting when the machine is turned on, primary color inks should be appropriately used according to the color matching, and the proportion should be grasped. The hue of each color group ink should be adjusted according to the sample. After the printing speed is stabilized, the sample effect can be achieved with slight adjustments. . In normal printing, batch control of the same hue is difficult for ink adjusters. For example, the amount of diluent added will affect the color effect to varying degrees, which requires ink adjusters to have a strong sense of responsibility. Things to note when adjusting ink 1. When the color tone meets the requirements, the fewer types of ink colors used, the easier it is to prepare and control. If you can use secondary color ink, do not use complex color ink. According to the subtractive color method, the more colors used in spot color ink, the lower the saturation will be, and the black component will increase accordingly. 2. Confirm the main color of the printed matter and the auxiliary colors contained in it. The main color ink is used as the basic ink, and the other inks are used as the toning ink. The basic ink is the main color and the toning ink is the supplement. In this way, the spot color ink will be deployed faster and more accurately. . 3． When preparing proofing and sample ink, try to use the same material as the printing material, because the color of the ink will change due to factors such as the difference in bag absorbency. Only by maintaining stable materials can color errors caused by differences in materials be avoided. 4. Use ordinary white cardboard to make small samples or scrape samples. The thickness of the ink layer will directly affect the color of the ink. If the ink layer is thin, the color will be light and the brightness will be high. Field or network cable, wet on wet or wet on dry, large or small amount of powder spraying, flatness and whiteness of the paper surface, thickness of the ink layer, etc. will all cause color differences. 5. To adjust spot color ink, you must first adjust the saturated hue of the ink, make a thin sample, and confirm that there is no shortage of main and auxiliary colors, then use diluent to adjust to the required spot color.