The generation of water bars in offset printing will affect the quality of the product and need to be resolved in time. The water bar refers to the appearance of a thin strip in the axial direction of the printing plate and the printed part when printing plain or solid prints, commonly known as "white bars" or "white bars". The water bar is generally caused by the water delivery section. How to solve the problem of water plumage?
The pressure between the upper water roller and the main uniform ink is too high, the pressure between them should be readjusted to make it appropriate to reduce some pressure; the ink emulsification, the surface area of ​​the water roller is too much ink; the layout water is too large, the amount of water supply should be reduced, cleaning Blanket, cleaning the ink roller when severe; the dampening water is too acidic and should reduce the acidity of the dampening water.