Hue and coloring power are the basic items of ink detection, which have a great influence on the color of ink. Hue is the detailed characteristics of ink color, optically corresponding to a certain wavelength, frequency of light, such as: red, yellow, blue refers to the hue of ink. Coloring power refers to the extent to which one ink affects the color change of another ink. When distributing spot color ink, when the hue or appearance of one of the original ink changes, the color of the spot color ink will change.
For example, when the hue of the original ink is yellow, the spot color ink will have the effect of adding yellow; If the original red ink on the color power is too strong, there will be the role of adding red. When this kind of color deviation exceeds a certain scale, it can be found by visual inspection, resulting in customer complaints. Therefore, it is very important to ensure the correctness of the ink hue and the stability of the inking force for controlling the color of silk screen printing products.
