Printing plastic bags, printing ink has been blocked, how to do, the printing is not clear
In addition, blocking the network and ink also have a relationship, ink viscosity is too large will cause plug nets.Blocking network also concerned with the screen, the screen too small, ink does not fit the screen, can also cause plugging.
Plugging the cause is: due to high ambient temperature, resulting in the screen on accelerating the drying of ink, the ink through the mesh, flow is smaller, so that a part of the ink residue in the mesh edge, can not be transferred to the substrate (plastic bags), the printed line is getting smaller, even to the end will be printed out.
The high temperature of screen printing is the basic reason for blocking the screen. Because the ink is dried in natural conditions. Normally, when the ambient temperature is high, the printing ink dries quickly. On the contrary, the opposite is true.
