1. Paper wool and paper powder accumulate on the rubber surface: the acid in the fountain solution destroys the paper coating.
2. Printing and blooming: the coating on the surface of the paper falls off and accumulates on the ink roller, blanket and on the printing plate.
3. The printing pattern of the printing plate is off: the additive of fountain solution is too acidic or too corrosive.
4. Plate corrosion: Insufficient anti-plate oxidation ability of water bucket liquid, too high PH value, increased emulsification, too many additives, poor adjustment of ink roller pressure, too high alcohol, too thin ink, etc. will damage the printing plate.
5. Foaming: The fountain solution circulating detergent is too strong or the additive itself foams.
6. Poor drying: The PH value is too low, the ink and paper are poorly matched, and the paper is too acidic.
7. Insufficient anti-friction force: PH value is too high, alcohol is too little, the anti-dirt force of the printing plate is insufficient, the roller is poorly adjusted, and the amount of ink supply is incorrect.
8. Dirty version: Too little fountain solution, the fountain solution is no longer suitable for use, the fountain solution is contaminated, and the machine is not adjusted correctly.
9. Flying ink: excessive emulsification, unbalanced ink.
10. Corrosion odor of fountain solution: Insufficient additives, water microorganisms breed, and antibacterial ingredients are insufficient.
11. Bottom soiling: PH is too high, the printing plate is poorly wetted, the amount of ink is too large, ink is piled on the plate and the rubber, the alcohol is too low, the water and ink are unbalanced, and the water quality is problematic.
12. Water roller staining: There are too few hydrophilic substances in the fountain solution.
13. Ink stacking ink: wrong fountain solution ratio, excessive emulsification, PH value is too high, alcohol content is too low.
Multifunctional Children's Study Table Chair Set
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