First. Toning. Before ink mixing, the ink consumption per color printing should be calculated to make the appropriate amount of ink. Especially for two-liquid reactive inks, the ink adjustment should be calculated according to its curing speed and printing speed. the amount.
In order to obtain the correct color, the ink adjustment should be carried out under stable natural light. At the same time, the color can not be counted and observed side by side, avoiding the influence of illusion. When configuring fresh ink, the addition of dark ink should gradually approach, and avoid adding too much at one time. , Then use a lot of light-colored ink to remedy. At the same time, the mixed hue should be minimized, the more the hue, the greater the grayscale.
Second, attention should be paid to the color change before and after drying.For example, on light-colored substrates with large ink absorption, the ink color after drying is often light; the color difference of the three phases of the wet state, dry state and hair bubble state of the foaming ink is large. The color of the ceramic printing ink changes after firing; the white ink will turn yellow after high temperature. Such color change rules require the printer to accumulate experience and samples in practice to make their own color standards.
Third, the color adjustment of the screen printing ink (printing material) of the glass screen printing machine is a link that cannot be ignored in the screen printing production process. The basic principle of the preparation is inseparable from the basic principles of the additive method of colored light and the subtractive method of colorants.
Fourth, the three primary colors of the color material are mixed in any two colors in equal amounts to produce a certain hue of the three primary colors of light. From the perspective of color, these three hue are called intercolor (or second color), such as The green color formed by the mixture of yellow and cyan is the intermediate color. The hue produced by the mixture of the intermediate color and the intermediate color is called the double color (or called the third color). The intermediate color and the double primary color ink mixed by the three primary color inks Intermediate and double colors mixed.
