The manufacture of packaging laminates by means of the extrusion coating or laminating process will today almost certainly involve a corona treatment system, as well as possibly an ozone generator.
Within the extrusion coating process a corona treatment system is used in the pre-treatment of the substrate prior to laminating/coating with the extrudate or melt curtain. The combined substrate and extrudate then pass over the chill roll. This laminated or coated surface, is usually also treated with a post-corona treater to make this surface more receptive for printing or further lamination.
Corona Supplies offer bespoke corona treatment systems for use on a variety of substrates used in extrusion coating, both pre treatment and post treatment on a variety of materials including PP, PE, EVA, Surlyn and paper/board.
Corona Supplies also offers ozone generators for use on the extrudate, which have many advantages on the extrusion coating process. See the ozone generators
page for further information.
Contact Corona Supplies
for further technical information or a quotation