Yang Tu PS version quality problems

First, the quality problem of positive PS version body 1. PS version background color is not good. After the exposure, the contrast of the color change is too small, resulting in difficulty in aligning the printing plate for multiple printing times, and it is not easy to observe when developing.

2. The development time is not well understood. The development is stronger and the small outlets are damaged. If the development is weak, the development will be incomplete and the printing will be dirty. This phenomenon shows that the development tolerance of the PS version body is too small.

3. After development, there is a "blue bottom" that causes the printing to be dirty.

4. Not easy to ink, PS printing on the machine is not easy to ink or not at all.

5. Local "flower version", paste version.

6. Interruption of the printing process.

7. Partially dropped.

8. Locally out of print.

9. PS plate surface roughness is not good

10. PS version of ink affinity, poor alkali resistance.

11. Improper proportion of photosensitive ratio.

12. Photosensitive film is too thin.

PS version body quality problems, in general, the use of manufacturers can not be solved, all they can do is to timely feedback to the manufacturer, prompting the PS version of the quality of the fundamental solution.

Second, PS version quality problems 1, the image of the virtual and dirty

2. The blank part of the printing plate is dirty

3, printing plates do not absorb ink

4, the picture is too shallow

5, the graphic is too deep

(to be continued)