Plasma treatment is used in the manufacture of plastic or plasticised boxes and containers to treat the zone where the glue is applied to help seal the box.

In order to meet the demands of innovative packaging design, paper converting companies have started manufacturing cartons for the food industry, boxes for electronic equipment, promotional folders, boxes for high-class perfumery and cosmetics with new materials such as PET, PP and polythene paper

In folder-gluer lines for the manufacture of collapsible boxes, the glue is applied along the folding edge of the box, in well-defined strips with a maximum width of 10 mm. Due to the smaller surface area, the plasma nozzle treatment system is more effective than the corona treatment.

Implementation of the air plasma treatment on folder-gluer lines is simple and requires little maintenance. The nozzle is mounted in line before application of the glue to activate the surface and help glue adhesion.

The treatment is also available with two/three/four  nozzles for gluing multiple points according to the box design.