Ink misting occurs when small droplets or long filaments of ink are created when the ink film is split in the roller nips and becomes diffused in the pressroom air. This is more often seen on high-speed presses. Ink misting often occurs due to an excessive ink film on the rollers caused by poor ink/water balance and an ink with low pigment strength. Other causes include over-emulsified ink, ink with too low of a viscosity (over reduced), or excessive heat buildup in the ink rollers brought on by improperly set rollers or rollers with a high durometer. Presses equipped with water-cooled oscillator rollers remove excessive heat and keep the ink on the rollers at a constant temperature and viscosity. Contact you ink supplier for assistance.