Digital Production Printing with UV-Curable Dry Toners for Paper and Flexible Packaging

摘要

This paper gives some information about the use and benefits of electrophotographic printing on packaging substrates. For packaging applications the converting process is even more important than the printing itself. To fulfill all this requirements it is very useful to have toners which can be UV-cured. This opens new possibilities for heat treatment, sealing and cooling. In combination with a high productivity web based digital press, this system allows new applications in the food, cosmetics and pharma packaging industry which have a huge market potential. The technology used (in line fusing and curing) will be discussed together with the toner composition problems which were encountered. Another benefit of the existing printing system is the fifth station, which opens the possibility to make use of white and/or spotcolor toner systems too.