01 The Problem
At a high-speed commercial printer, ink viscosity depends on the roller temperature. A drift of just 5°C is enough to throw off color registration enough that the entire roll has to be scrapped. The print floor operator can't be at every press all day, and the press operator can't watch a thermometer.
The Risk
High-speed printing roller temperature directly affects ink viscosity and color registration; a 5°C drift can scrap an entire roll.