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CORONA TREATMENT: WEB TREATER
The purpose of corona surface treatment of polymer-based materials is to increase surface wettability through electrical discharge. The low surface energy of polymer-based substrates often leads to poor adhesion of inks, glues and coatings. To obtain optimum adhesion, it is necessary to increase the surface energy of the substrate to just above that of the material to be applied. Surface Treatment with either Corona results in good wetting of the material over the surface of the substrate and so improves adhesion. For Wide Web corona treating, Dyne Technology offers:WebTEC corona treatment for the flexible packaging industry allows increased surface energy on webs manufactured from a variety of materials including; paper, plastic, metallised film and foil. The compact design of the corona discharge unit enables the equipment to be easily installed to new or existing extrusion, printing, coating and laminating lines.
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