Atmospheric pressure plasma technology offers an attractive
perspective in today’s industrial processes due to the elimination of
expensive vacuum equipment, easier handling of the samples and
scalability for in-line processing [1,2]. Therefore, in recent years,
a lot of effort has been invested into the development of nonthermal plasma reactors working at atmospheric pressure [2,3].
Among different non-thermal plasmas, an atmospheric pressure
plasma jet (APPJ) was selected in this work since this discharge is easy to integrate into existing production lines and can selectively
treat specific parts of a substrate [4,5]. Moreover, in contrast to
most corona and dielectric barrier discharges, APPJs are not limited
to flat and thin substrates, but can also be used to modify large
three-dimensional structures