How to solve the knife line in the printing process of ink?
When there is a large area network or shallow level transition layout, should choose good quality ink, prevent ink pigment particles too large caused by drawing, usually ink fineness is 15 mu m, ink particles too rough for scraping knife, plate damage is great.
The deployment of ink, without impact on other patterns with a printing plate, should consider the use of slow solvent, do not add too much ethyl acetate and other auxiliary solvent, to prevent ink change to normal printing.
Make sure the ink viscosity is moderate and stable. The production of drawing and ink viscosity has a direct relationship, generally speaking, the higher the viscosity of ink, printing and easy to produce knife line. In addition, due to the performance of various brands of ink is an added amount of solvent is not the same, the deployment of ink when the ink manufacturers provide specific data reference, combined with their own printing conditions and products printed by the specific operation.
