Plasma technology is based on corona treatment. However, unlike the technically simpler corona treatment systems, plasma treatment occurs in a nitrogen atmosphere.

In standard corona treatment, the plasma discharge is ignited in the air gap between the corona electrode and the component, which is used as the counter electrode. This plasma discharge triggers various chemical reactions between the ambient air in the electrode gap and the material surface. Ambient air consists of approximately 78% Nitrogen, 20% Oxygen, 1% Argon, and a mix of other gases in smaller quantities.

For many applications, the outcomes of a corona treatment can be optimized by increasing the proportion of nitrogen in the treatment atmosphere. SOFTAL’s plasma treatment stations achieve this by injecting Nitrogen into the discharge gap, allowing for more precise control of both the discharge atmosphere and the treatment results.


We are proud of our growing global customer base, which includes manufacturers of film production lines, finishers, film producers, and research companies. Naturally, the portfolio of products offered by SOFTAL is just as multi-faceted as our customer base. This is made possible by the modular design of our treatment systems, allowing for customer-specific changes and the rapid development of new systems and processes. This ideal starting point enables us to meet customer demands and achieve results. Guaranteed.

The numerous hardware and software solutions provided by our treatment systems ensure seamless integration into customer-specific systems and processes. Starting from proven standard components, our systems can be tailored to suit any material and/or process. We specialize in the surface treatment of your materials, so you can focus on your core business.

SOFTAL has been part of the corona and plasma industry for more than half a century. Our engineers and developers know what really matters at the end of the production day. Factors like easy maintenance and service, low operating costs, long life, and optimum operator safety are considered early in the development process to ensure maximum user-friendliness and uptime.

Shape, material, and position of the corona electrode assembly, along with the characteristics of the related treater roll, determine the homogeneity and efficiency of the plasma discharge. Constant further development of our electrodes has generated a number of patents, including our Intelliblade™ electrode and our liquid-cooled ceramic electrodes, both of which have been tried and tested hundreds of times.

There are films that require an extremely high-powered plasma discharge to achieve the desired effect, while others are so sensitive to electric discharges that they would be destroyed even by a standard low-power plasma discharge. There is a solution for every film – just ask us.

Plasma is the modern alternative to wet chemical primer applications. The high costs associated with the storage and disposal of chemicals are eliminated, as are the substantial energy and time required for the primer application and drying process steps. Instead of wet chemicals, this system uses Nitrogen, which is entirely harmless.

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