what do we have to know knowledge and skills when we observe the color of the printing

In the process of color printing, the main problem is the color difference. So what do we have to know knowledge and skills to resolve or reduce color difference? Hope it could be of some help after you read this .

First of all: the best way to ensure consistent color is to observe color swatch and print swatch under standard lighting conditions. In order to reduce the color change, the printing industry has specially customized the standard color observation conditions, namely the standard color observation pool.  

Secondly: the effect of lighting, when  under different lighting, the effect is different. When observing color, you need to pay attention to another problem that is metamerism. The so-called metamerism is the same when two samples are under one light source, and they are under the other. They are different.  

Finally there is also the influence of the surrounding environment. When we observe the printed paper, the surrounding environment will affect the color. This is the so-called “critical effect”, which reflects the importance of using a neutral environment when viewing proofs to a certain extent.