The surface treatment of plastic film materials is the primary application for corona treatment. Industrial processes based on plasma discharge allow operators to enhance the adhesion of printing colors, lacquers, adhesives, and coatings to their films in a swift, economical, and enduring manner. It’s vital to differentiate between pre-treatment, carried out by plastic film producers during production, and the so-called refresher treatment, conducted by converters before processing steps like printing or laminating.

Since the 1950s, when plasma treatment first became commercially available in the industry, it has evolved into an essential component of production and converting processes. Alternative methods often result in higher costs and increased effort, positioning corona technology as the most logical choice in many domains. In fact, many existing processes can be simplified using a corona system. After all, plasma embodies pure energy.

Founded over fifty years ago, SOFTAL emerged as an early advocate of corona technology. Throughout our extensive history as both a market and technology leader, we have seized numerous opportunities to refine designs that leverage corona and plasma technology, driving the impressive market success of this technology.


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, combined with the characteristics of the related treater roll, determine the homogeneity and efficiency of the plasma discharge. Ongoing development of our electrodes has led to several patents, including our Intelliblade™ electrode and our liquid-cooled ceramic electrodes, both of which have been tried and tested hundreds of times.

There are film materials that necessitate an extremely high-powered plasma discharge to attain the desired effect, while others are so sensitive to electric discharges that they could be destroyed by even a standard low-power plasma discharge. There’s a solution for every film – just ask us.

When a film undergoes corona treatment immediately after production, satisfactory results can be attained with relatively minimal effort. Since surface characteristics are a compelling selling point, corona pre-treatment provides plastic film producers a straightforward and cost-effective path to an enhanced product.


SOFTAL Corona & Plasma

Improved adhesion

SOFTAL Corona & Plasma

Uninterrupted operation

SOFTAL Corona & Plasma

Environmentally friendly process

SOFTAL Corona & Plasma

Custom-engineered solutions

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