What is the main reason for the blurred screen printing?

What is the main reason for the blurred screen printing? In the screen printing, screen printing patterns blurred, the main reason and troubleshooting are as follows: (1) the ink is too fluid. Due to the small viscosity of the ink, the flui

What is the main reason for the blurred screen printing? In the screen printing, screen printing patterns blurred, the main reason and troubleshooting are as follows:

What is the main reason for the blurred screen printing

(1) the ink is too fluid. Due to the small viscosity of the ink, the fluidity is large, the ink is easy to spread during printing and the screen printing pattern is blurred. To this end can increase the viscosity of the ink, or enhance indoor ventilation, in order to improve the rate of solvent evaporation.

(2) screen printing pressure is too large. Printing pressure is too large will spread the ink and lead to pattern blur, this time should reduce the printing pressure.

(3) scraping board is not suitable or improper operation. The hardness of the used squeegee is not enough, too soft, or the squeegee is not sharp enough, too sleek, the angle of the squeegee is too small when printing, which may cause the ink to be printed out too much. For this purpose, the angle of the squeegee can be adjusted, the squeegee with higher hardness can be selected, or the squeegee can be sharpened.

(4) the network is too small. Too small a network so that the adhesion of the printing section is too long and lead to silkscreen printing patterns blurred. At this point you can increase the network spacing.

(5) The mesh is too low or loose mesh. Screen mesh is too low, the screen thicker, so a large amount of ink, it is easy to cause the screen printing patterns blurred. And sometimes due to the relaxation of the screen caused by the phenomenon of volume network will lead to silkscreen printing patterns blurred. At this point you can change the screen or re-stretch network.

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