Corona Treatment

For high quality corona treatments, contact Martignoni Srl

In the industrial sectors that see converting, screen printing or surface treatment as protagonists, it is necessary and indispensable to make the adhesiveness of the material better to accommodate screen printing or lamination, again, painting.

This process, called in the jargon "increase of wettability", is treated through a treatment called "corona treatment" which takes place through a high-tech device produced by Martignoni Elettrotecnica.

How does corona treatment work?

The corona treatment uses electrical discharges sent at high frequency; they, through modifications of the ionic field, influence the surface tension on the different materials.

In fact, many objects, plastic and metal films, but also paper sheets, have very low surface tension.

This aspect makes them little or no resistance to the application of adhesives, inks and to all those products produced, for example, in packaging processes.

The corona treatment, by its nature, proportionally increases the energy on the surface of these materials, so that the printing process or adhesion of adhesive products is effective to the maximum degree and durability.

The corona treatment will be repeated twice: the first time at the moment of production; the second time at the moment of conversion to restore freshness to materials that have lost their initial tension.

How is a corona treatment station made up?

The corona treatment station consists of two parts: an electronic generator and a treatment unit.

Depending on the needs of each company, Martignoni customizes the devices with customized parameters, speed and size. Everything will be calibrated on the type of materials to be treated.

Here is how Martignoni Elettrotecnica can guarantee a highly effective result on the innovative corona treatment. An increasingly essential process for all those companies that find themselves in need of applying a surface treatment on materials whose "wettability" is absolutely reduced.