Also, ink coming to next print station must be dry. Most inks- solvent integral part of composition.
Film becomes thicker, viscosity increases, solidification process.
Diffusion rate in semi-plastic mass much lower than in less viscous ink. At some point- diffusion slow enough to affect the evaporation rate. Tendency of ink film to retain solvent. INKS Little or no solvent, therefore little or no explosive hazard. Water- evaporates more slowly as relative humidity raises.