The whiteness of the paper. The ideal whiteness of printing is 100% total reflection, especially the identification of color. It is necessary to realize the importance of whiteness of paper, especially the paper which is one of the main factors for distinguishing color, and the blank paper bearing the color of the color. Whiteness plays a decisive role in the appearance of hue, brightness and saturation.
Environmental color effects. Ambient colors also have a significant effect on correct color discrimination. Similarly, when observing and analyzing colors, the process of seeing must avoid the illusion of color.
The relationship between the absorbency of paper and the imprinted ink layer. Due to the great difference in absorption of various inks, the absorptivity of coated paper is small, and the absorptivity of letterpress paper and offset paper is large. The paper with high absorbency often causes the imprinted ink layer to solidify, resulting in large losses in the drying process. .
When comparing color samples, what factors can affect color discrimination? When offset printing is compared with the printing ink color sample and printing ink color size and hue is exactly the same, the environmental color has a greater impact, as well as light (sunlight) brightness and darkness and color cast, and each person's color blindness physiological phenomena have a certain impact.