Ultraviolet-dryer for drying printing inks and other ultraviolet-photopolymerizable materials, has ultraviolet radiation head with irradiation unit having cylindrical tubular ultraviolet lamp

摘要

The ultraviolet-dryer (1) has an ultraviolet radiation head (2) with an irradiation unit (12) having a cylindrical tubular ultraviolet lamp, where radial passage openings are provided in two separate angular regions of the ultraviolet lamp. The radial passage openings are formed between quartz glass plates, through which a portion of cooling air with ozone flows into a cooling chamber.