A combination of radiation in the infrared range and warm air introduces energy specifically into the wet water film to be dried. The energy supply accelerates the evaporation At the same time, defined air circulation and extraction ensure that the released water is safely removed.
Depending on the machine speed, solvent content and film thickness, a certain drying distance and therefore amount of energy is required. The required energy can be supplied in various combinations via IR emitters, carbon emitters and hot air.
They effect a fast energy supply and hence a fast heating of the ink film. 0.9–2.9 µm (peak width at half-height) is the typical wavelength area of medium-wave IR radiators.
In contrast to IRM radiators, carbon radiators effect a stronger warming near the surface of the wet film. 1.1–3.7 µm (peak width at half-height) is the typical wavelength area of carbon radiators.
