Materials with low surface energies like polymers and metals are not wettable by printing ink and adhesives. These materials require some treatment to match the surface tension of adhesives. The procedure of using chemicals, plasma or radiations for increasing the surface tension of non-polar materials is called as surface activation.
Although every method of activation has its own pros and cons, choice of the treatment method depends on the nature of the material being treated. For example, plasma treatment is commonly used to activate the polymer surfaces, while for metal surfaces UV radiations are used.
Atmospheric plasma treatment is used for a multitude of reasons such as treatment of parts prior to the bonding process, surface activation, and fine cleaning etc. The treatment presents a technique that is friendly for the environment and dry. Atmospheric plasma is also high quality plasma that could efficiently reduce operational costs and used locally.
One of the many advantages of air plasma treatment is its ability to treat difficult surfaces on higher levels. Plasma treatment is a feasible substitute for treating a variety of substrates that do not respond to the corona treatment process. For example, the corona treatment is in effective on materials made from fluoropolymers like Teflon® etc.
Plasma treatments are also beneficial for increasing life treatments to a considerable point. Substrates subjected to this treatment tend to retain their treated forms much longer than surfaces that have been exposed to corona. A lasting treatment will ensure an increase in inventory life along with providing the manufacturing sector with the much needed flexibility. This can also enable converters to gain advantage over scale economies during production.
Atmospheric plasma treatment is ideal for handling thicker substances. Usually, substrates which are thicker than the average diameter of .125” are unable to respond positively to the process of corona. These may include foams, metals, films, powders, fibers, non-woven and many other materials. And these surfaces can be actively treated by plasma.
Read more about PlasmaTec, the Atmospheric Plasma Generator. The PlasmaTEC system provides an economical solution for effective surface treatment of a large number of materials.
Deutsch: Das PlasmaTEC Atmosphärisches Plasma Behandlungssystem ist eine einfache und effiziente Lösung zur Vorbehandlung unterschiedlichster Materialien und Formen.