What is roller glaze?
If the rollers look shiny and have a glassy feel to them, they are glazed. When rollers are glazed, the fingers in the rubber surface do not transfer ink effectively, which means you will need to run more ink and more water on the press to achieve the required ink densities. Higher levels of ink and water will result in dot gain, mottled solids, hickies, ink drying problems, reduced quality, and most likely, increases in your spoilage or unplanned waste.
