In the process of plate making, especially when the full plate is on the spot, the electric engraving is easy to change the dot size from left to right. Generally, the left and right normal error is within 0.3 silk. If the deviation is too large, the left and right color difference will occur. The following methods can be used to eliminate the causes of plate making:

Color Difference Between Left And Right Of Gravure Printing

1. Put the printed matter and gravure proofing together to observe whether the depth and depth are consistent. If they are consistent, it can be basically determined that it is a printing plate problem.Color Difference Between Left And Right Of Gravure Printing

2. Turn the plate roller left and right to re level the plate. After starting up, observe whether the depth of the two prints is the same. If the depth is still the same, the printing plate problem can be basically determined.Color Difference Between Left And Right Of Gravure Printing

3. The biggest problem caused by plate making is that it is fixed. No matter how you adjust it, it will still be in place.Color Difference Between Left And Right Of Gravure Printing

     For example, in practical work, we have encountered that the water stains on the surface of the plate roller cannot be removed due to dry and solid cleaning, resulting in water stain sample marks after printing. Color Difference Between Left And Right Of Gravure Printing

    In this case, we can wipe the water stains with 5% concentration of dilute hydrochloric acid. If it still cannot be removed, we can return to the plate making factory for treatment.Color Difference Between Left And Right Of Gravure Printing