How to avoid picture and text in screen printing?

In screen printing, a large area of ​​graphic printing is easy to print. How to avoid it?

There are two kinds of printing, one is caused by ink, and too much or too little ink can easily cause hair growth. The second is that the solid pattern is not sufficiently transparent and uniform during development, and as a result, the ink is not evenly distributed during printing.

For the first one, it is mainly to control the amount of ink in the frame. When ink is added, it should not be too much. The first time the amount of ink added is about 200 grams, it is appropriate. When printing for a period of time, it is necessary to add ink again. This time it is skillful. When did one add ink? Another is how much ink? When it is found that the ink between the ink blade and the scraper is less than half, ink should be added. The amount of ink added is about 100 grams. Adding ink is also tricky. If it does not stop, it should be slowly added from the edge of the frame. And to add a little ink and so on to print a few dishes and then add. If the ink is shut down, there are two methods. One is to add ink to the front of the squeegee. After the squeegee is used, the ink should be leveled with a knife that is inked. Otherwise, the ink will still be printed. The other is to use the ink squeegee and the squeegee. Reach out and add ink to the back of the ink knife.

For the second, adding the appropriate amount of thinner in the ink can be solved.

There is also a skill in printing, the printing speed must be lowered, because the faster the scraper retracts, the ink ribbon will enter the printing area, resulting in the next disc printing, generally adjusted to 55--60rpm It is advisable to add some thinner to the ink to reduce the viscosity of the ink.