How to solve the cause of the water bar?

The water bar refers to the presence of an axial strip on the plate layout and the print when printing a flat screen or a solid print.

Obvious shallow striations, commonly known as "white bars" or "white bars". The water bars are generally caused by the water transfer section.

The causes and solutions are:

(1) The pressure between the upper roller and the main ink is too high, and the pressure between them should be readjusted to make it properly reduced.

Light pressure

(2) ink emulsification, water roller surface too much ink;

(3) If the layout is too watery, reduce the amount of water supply, clean the blanket, and clean the ink roller when it is severe;

(4) The dampening water is too acidic and the dampening water's acidity should be reduced.

XIV. Why is the flower version eliminated?

The flower version refers to the narrowing and emptiness of the dots on the printing plate, the weakening of the sense of fat, the loss of fine ideas, and the dullness of color. The cause of the floral version and its elimination methods are:

(1) The pressure between the plate cylinder and the blanket cylinder is too large, and the thickness of the cylinder liner should be reduced;

(2) The pressure between the water roller and the water roller is too small (water), and the pressure of the water roller and the water roller should be properly adjusted;

(3) The dampening water is too acidic and should dampen dampening water to reduce its acidity;

(4) When the amount of water is too large, the amount of water supply should be reduced;

(5) ink viscosity is too large, should be added to the ink in a certain amount of varnish to reduce the viscosity of the ink;

(6) The printed version of the printed version was already in the process of plate making and printing, and should be replaced with a new version.

15. What are the reasons for the paste version? How to eliminate?

The reasons for eliminating stencils and eliminating them are:

(1) The pressure between the plate cylinder and the blanket cylinder is too large, and the pressure between the plate cylinder and the blanket cylinder should be reduced;

(2) Relying on the plate roller and plate pressure is too light, the pressure should be readjusted (2.5-3mm);

(3) The pressure on the printing roller and plate should be reduced;

(4) The dampening water is too acidic and the acidity of dampening water should be properly reduced;

(5) Ink is too thin. Add "0#" ink to the ink;

(6) Too much ink, should reduce the amount of ink supply;

(7) The amount of desiccant in the ink is excessively increased. The ink roller should be cleaned to reduce the amount of desiccant in the ink.

(8) Printed version of the body is too fine sand eyes, should be replaced with a new version.