A 'quantum leap' in UV printing technology

摘要

Eltex Elektrostatik GmbH (Weil am Rhein) developed its so called EFD process at the end of the 90s and launched it at drupa 2000. Now it is operationally mature and offers numerous technical advantages. The advantages of EFD process include as improved hardness and bonding to the substrate, higher levels of gloss, lower material shrinkage, higher web speeds and reduced emission of fumes. The EFD concept is based on the discovery that a plasma (electron-ion stream) generated by high tension electrodes is able to create turbulence in laminar gas boundary layers above a fast moving substrate (figure 1).