(1) Pull paper wool.  The main reason is that the ink used by Flat Screen Printing Machine Factory is too viscous or the paper strength is poor.  The elimination method is to add an appropriate amount of ink release agent to reduce the viscosity of the ink, and to use paper with high surface strength to reduce the speed of the printer.

(2) The color of the printed matter becomes lighter.  The main reason is that the thixotropy of the ink is too large and the viscosity is too small.  The elimination method is to add new ink with high fluidity or resin ink with high viscosity.

(3) ink pulverization and fading.  The main reasons are insufficient binder in the ink, too low viscosity, too slow drying and poor water resistance.  Paper is too absorbent, fountain solution or paper is too acidic.  The elimination method is to speed up the drying speed of the ink, add a proper amount of red dry oil into the ink, reduce the acidity of the fountain solution, and reduce the water supply.

(4) Adhesion.  The main reason is that the amount of powder sprayed is too small, the pile of paper is too high, and the ink solidifies too slowly.  The elimination method is to increase the amount of powder spraying, reduce the thickness of finished product accumulation, select fast oil fixing amount, or supplement polyethylene wax in the ink.

(5) Drying is too slow.  The main reason is that the drying agent in the ink is insufficient and the paper or fountain solution is too acidic.  The elimination method is to add a proper amount of desiccant to the ink and adjust the PH value of the fountain solution.

(6) flying ink.  The main reason is that the ink layer is too thick, the viscosity is too small or the ink roller installation is unreasonable.  The elimination method is to use thicker ink, reduce the amount of ink, check whether the ink roller installation is reasonable to eliminate static electricity, and improve the indoor temperature.

(7) Paste version.  The main reasons are that the specific gravity of the ink is too large, the powder content is too high, the particles are coarse, the viscosity is too small, the water resistance is poor, the ink roller and the printing plate ink layer are too thick, and the paper powder is removed.  The elimination method is to increase the ink viscosity or add new thick ink to adjust or replace the paper.

(8) pile rubber.  The main reason is that the ink has poor water resistance, low viscosity, insufficient binder, poor transfer, or paper powder removal.  Exclusion method is to adjust the proportion of ink and add ink with higher tinting strength to improve the water resistance of ink or replace better paper.

(9) Stacking rollers.  The main reason is that the water resistance of the ink is not good, the viscosity is too high, and the amount of fountain solution is too large.  The elimination method is to add new ink, reduce the water supply of fountain solution or add isopropanol to the fountain solution to improve wettability and volatility.

(10) Dirty oil.  The main reason is that the water resistance of the ink is too poor, the viscosity is not enough, and the oil is too strong.  The elimination method is to increase the viscosity of the ink, add a small amount of extra oil, switch to quick-drying bright ink, add a small amount of light magnesium carbonate in the ink to reduce oil, or try not to use lake pigment ink.

(11) Dirty version.  The main reasons are that the ink is too soft, the viscosity is small, the water resistance is too poor, the acid and Arabic gum in fountain solution are insufficient, and the water gel is not clean.  The elimination method is to replace the ink with better elasticity, add appropriate amount of Arabic resin glue into the fountain solution to improve the acidity of the fountain solution, add appropriate amount of isopropanol, and thoroughly clean the wet plate roller.