Corona Treater

Corona Treater

Swati Polypack offers Corona Treater for tightening caps and building shields for cap liners. With the availability of diverse options such as wood pulp, foam core, polyethylene, and coated aluminum, buyers will have a wide range of choices to choose from. The process of Corona Treatment can be referred to as a high-oxidation procedure that leads to the accumulation of polar molecules on the film surface. Corona Treaters can be used in several applications such as Blown Film manufacture, Lamination and Coating, and Woven Fabrics. Buyers can also have Corona Treaters for 3D products. All the products belong to topmost quality standards thus offering amazing performances.

The Corona Treater or the reseal liner is there to make a shield for the liner and tighten the cap. You can choose the best products from here, the Swati Polypack. Select from the range of material available for optimizing your necessity includes polyethylene, wood pulp, foam core and coated aluminum.

Type of Corona treaters and application :

surface treatment, plasma treatment, surface tension, plastic printing, blown film, flame treatment, plasma treat, plasma treating, flame treating, corona treatment, converting, extruding, corona treating, surface treating, corona treater, plasma treater, 3d treat” etc

Corona Treatment is a process of high speed oxidation which creates polar molecules on the film surface. The energy of the corona will break the bonds of the atomic structure of the substrate. The oxygen rich ozone developed by the corona discharge readily fills the open valancies which create a charge surface thus improving the surface characteristics. The Treated surface tends to go back to it’s original dyne level after a certain period of time. This Decay of Treatment is exponential in nature and varies for different type of materials, it’s additive content and other factors. Proper packaging reduces the rate of decay. Generally the effect of treatment remains for about a month.

Corona Treatment for Blown Film

Corona Treatment for Coating and Lamination

Corona Treatment for Woven Fabric

Corona Treatment for 3D Items






Corona treatment (sometimes referred to as air plasma) is a surface modification technique that uses a low temperature corona discharge plasma to impart changes in the properties of a surface. The corona plasma is generated by the application of high voltage to sharp electrode tips which forms plasma at the ends of the sharp tips. A linear array of electrodes is often used to create a curtain of corona plasma. Materials such as plastics, cloth, or paper may be passed through the corona plasma curtain in order to change the surface energy of the material. All materials have an inherent surface energy (dyne level). Surface treatment systems are available for virtually any surface format including dimensional objects, sheets and roll goods that are handled in a web format. Corona treatment is a widely used surface treatment method in the plastic film, extrusion, and converting industries.









The corona treatment was invented in 1951. Verner had been asked by one of his customers if he could find a solution which would make it possible to print on plastic. Verner found that there were already a couple of ways to accomplish this. One was a gas flame method and the other was a spark generating method, both of which were crude and uncontrollable and did not produce a homogeneous product. Verner came up with the theory that a high frequency corona discharge would provide both a more efficient and controllable method to treat the surface. Exhaustive experiments proved him to be correct. Verner’s company, Vetaphone, obtained patent rights for the new corona treatment system.