Linear Plasma

Surface treatment with Linear Plasma technology

The task

In SOFTAL’s product portfolio, Linear Plasma technology has a special role. In corona, plasma and ALDYNE™ stations, the material to be treated is guided through the plasma electrode and a roll, which acts as the counter electrode. In this design, the maximum distance between plasma electrode and roll is limited by the plasma discharge itself. If the distance becomes too large, a homogenous plasma discharge does not form.

A Linear Plasma generates a potential-free plasma discharge within the electrode housing and utilizes compressed air or a process gas mixture to blow the plasma onto the material. The design limitations concerning maximum material thickness are removed and materials with any thickness can be treated.

Undesired backside and cavity treatment forming in air inclusions or cavities is an issue in the corona treatment of industrial foams and multi-wall sheets. Linear Plasma eliminates this problem completely.

Modern high-tech materials, such as silicone wafers and plastic films used in the production of printed electronics, are extremely sensitive to electric discharge. Strong electrical fields can damage or even destroy these state-of-the-art materials. With a potential-free discharge, Linear Plasma eliminates this problem altogether.



Improved adhesion


No more wet chemicals


Environmentally friendly process


Improved adhesion


Adhesion guaranteed

We are proud of our growing global customer base that 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, which allows customer-specific changes and a rapid development of new systems and processes. This ideal starting point allows us to meet customer demands and achieve results. Guaranteed.

Customer-specific interfaces and solutions

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

Eliminates backside and cavity treatment

Industrial foams and multi-wall sheets have air inclusions and cavities, which has made them notoriously unsuitable for corona treatment in the past. Undesired treatment in these areas can weaken the material and waste power. The basic working principle of Linear Plasma from SOFTAL eliminates this problem completely, as the treated material does not pass between the corona electrode and a counter electrode here. The plasma discharge is generated within the electrode housing and strictly localized to the material surface.

Any material thickness

In a Linear Plasma system, the plasma is generated ‘above’ the material to be treated and then blown onto the material with compressed air or a process gas. A technical limitation to the thickness of the material to be treated does not exist in this case.

Reliable service

The name SOFTAL is synonymous with premium quality systems and a high level of customer satisfaction all over the world. Our unique network of comprehensively trained service professionals located in strategically chosen countries allows us to be personally present in international locations in a matter of hours.

Controlled treatment atmosphere

ALDYNE™ is the modern alternative to wet chemical primer applications. Instead of wet chemicals, ALDYNE™ utilizes a locally produced process gas mix of Nitrogen and inert gases, which is absolutely harmless. In most cases a process gas control panel is used, which allows the operator to adjust the process gas mixture to the demands of each material to be treated on an individual basis.

Corona stations

The portfolio of products offered by SOFTAL is as diverse as the possible applications of corona technology. Our corona and plasma systems are always based on our tried and tested standard components, but specifically chosen and adopted to meet the demands of your materials and processes.

Corona generators

SOFTAL corona generators are, of course, just as adaptive as our corona stations. It goes without saying that the products of a company that has been successful in the market for decades offer the ease-of-use, robustness, low maintenance and service costs and numerous small and large solutions for smooth everyday production work that you expect form a global player.