The phenomenon of tiny ink droplets flying in the air is called "flying ink", also known as ink mist dispersion. It is the most common fault of high-speed rotary relief printing press. To slow down the "flying ink" phenomenon, you can increase the humidity of the printing workshop and use conductive inks such as water-based inks.
During the printing process, the paper is not easy to separate, the paper on the paper receiving platform is not collected properly, or the paper on the paper feeding platform is skewed and overprint is not accurate, which may be caused by static electricity. To eliminate printing static electricity, an electrostatic eliminator is usually installed on the printing machine to ionize the air around the printing machine, so as to neutralize the positive and negative static electricity on the paper. You can spray an appropriate amount of water mist around the printing machine or above the back of the embossing cylinder to eliminate the static electricity on the paper. In addition, increasing the humidity of the printing workshop is conducive to the elimination of static electricity.
Ink through printing refers to the phenomenon that the positive impression can be seen on the back of the printing sheet. To prevent ink penetration, you can choose the paper with high tightness for printing, or increase the viscosity of the ink and appropriately reduce the printing pressure.
