Difficulties that may be encountered when glass screen printing meshs are often used

The smear of ink refers to the speckle-like imprint of the image on the glass surface and the dark tone. Our phenomenon is damaging the effect of printing. Glass screen printing is prone to this phenomenon during operation. So what is the reason for this happening?

Printing mesh speed and ink drying are too slow; ink layer is too thin; ink thixotropy is large; electrostatic effect; poor pigment dispersion in ink, due to the polarity of pigment particles, particles agglomerate each other, color dot blotting appears. The improved method is: improving the fluidity of the ink; using a fast-drying flux; printing with a

Difficulties that may be encountered when glass screen printing meshs are often used

high viscosity ink as much as possible: increasing the wet film thickness of the ink,

Try to use inks made from pigments with low oil absorption. Minimize the effects of static electricity. When the image is deformed, the stamping applied to the printing plate by the squeegee duri

ng printing can make the line contact between the printing plate and the printed matter, and it is not necessary.

If the pressure of the print is not increased, the gap between the layout and the glass should be reduced. In this way, the pressure of the squeegee can be reduced.

In general, the glass screen printing mesh process will have three major failures, such as paste, pinhole, and part of the image and darkness. For these failures, the correct method is required.