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Contact SupplierCorona treatment system is a very effective way to increase the surface tension of virtually any material. Surface treatment is required for plastic filmsfabrics whose normal surface tension is not sufficiently high to permit good wetting by flexo graphic inks.
Corona treatment system increases the surface tension of the fabrics respective to inks by inducing molecular changes in the surface of the films. This is done by exposing the air at the material's surface to a high-voltage electrical discharge - a corona.
Corona discharge treatment at atmospheric pressure for improving adhesion of various polymer substract is now standard practice.
As shown in the diagram the fabric is passed from free roller through the airgap between multisegmented electrode and the silicon roller which generates continuous shower of ionised air called as CORONA.The electerode and dielectric cover on the roller serves as the electric connection to the stream of ionized air in the airgap.