Whether the packaging box is qualified or not should be judged from the aspects of color, production and process requirements. In the process of packaging box printing, color consistency and saturation are the main factors that constitute a qualified packaging box. So, how to reduce the color difference problem in the printed packaging box?

1. Before production, you need to proofing to confirm the text and set the color value, but the printing box proofing is different after all. If you use the printing color to follow the proofing color, you need to constantly debug the color during the printing process, but due to paper, ink, machine pressure If there are other problems, there will be a certain error between the printed sample and the sample, which is within a normal and reasonable range.

2. The number of prints is also related to the color difference. If the number is small, the ink color will be uneven, the pressure will not be large, and there will be deviations in the color.

3. The color will also change after lamination. Since the lamination is a water-based or oily film, the printing color will be aggravated after contact with the printing surface, resulting in chromatic aberration.

In the process of packaging box printing, it cannot be guaranteed that the proofing is consistent with the printed product, but it can only be as close as possible. Communicate well with the customer before printing, and it is acceptable within a reasonable margin of error.