How should the Plastic TPU Film be Corona Treated ?

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With the continuous emergence of various new materials, new equipment and new processes, plastic TPU film is developing in the direction of variety, specialization and multi-functional composite films. The most commonly used method for surface treatment of plastic TPU film is corona treatment.

The principle of TPU film corona treatment is applying a high-frequency, high-voltage power supply between the metal electrode and the corona treatment roller to discharge, the air is ionized and a large amount of ozone is formed. Meanwhile, high-energy sparks impact the surface of the TPU film. The surface of the plastic TPU film is activated and the surface energy is increased under the combined action.

POLYSAN company is specialize in producing corona treatment of TPU roll film, the wet tension of polyolefin TPU film can be above 38 dyne/cm; the surface wet tension of polyester TPU film can be above 52-56 dyne/cm.