Analysis of the causes of dirty plates in the most

2022-10-19
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Analysis of the causes of dirty plate phenomenon in offset printing

phenomenon: non printing areas absorb ink

causes and measures:

1 Printing plate oxidation: moisten the plate with Anti Dirt buffer

2. Poor development of printing plate: make plate with recommended developer

3. No gluing protection when printing is stopped for a long time: gluing protection is required when printing is stopped for a long time

4. Too much ink: use less ink

5. Dirty water roller: clean or replace the water roller

6. The water roller or ink roller vibrates or slides on the printing plate: adjust the water roller or ink roller for 1 year

7. With the installation of these main equipment, too much dusting was used in the first printing: remove the dusting

8. The pH value of the paper is greater than or equal to 8: use a fountain solution with a pH value of 4.5

information source: Beijing pailihang Trading Co., Ltd

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