Screen printing meshs are also common in packaging printing. One of the more common problems in screen printing is the shrinkage hole, which is one of the problems caused by poor flattening of the printed ink film. After the screen printing ink is printed, the wet ink film is retracted during the leveling process and becomes a small circle, exposing the substrate material (bottom) or the previous ink layer. The primary cause of seizures is that the printed ink film has some different surface tensions.
Maishi is a manufacturer of screen printing meshs for many years. Over the years, maishi's products have been applied to ceramics, clothing, and industry. There is still a lot of experience in the field of wire mesh.
Maishi technical professional gives the solution: the shrinkage of this attack, the detailed practice is: 1 properly add the leveling agent in the printing ink; 2 select the solvent with low surface ten
sion; 3 wet the surface of the substrate (If the solvent is used to wipe the surface of the substrate before printing); 4 control the ambient temperature and humidity of the print job; 5 select the appropriate interpreter; 6 reduce the external tension between the printing ink and the carrier, so that the ink and The carrier has excellent wettability so as not to form an external tension gradient with the substance causing the cratering;) 7 adjusting the solvent transpiration speed, decreasing the viscosity, improving the activity of the ink, and prolonging the leveling time; 8 printing the ink in the package The outer surface of the membrane constitutes a very thin monolayer to provide a stable and uniform surface tension.
Shrinking holes should be handled according to the above when printing and printing. If you don't understand anything, you can consult our professional business personnel.
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