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Schematic sketch of the setup for corona (A) and FLAIR® (B) treatments of PET films. The produced plasma is shown in light purple for the Corona treatment and in purple for the FLAIR® treatment. The power density of 200 W/cm2 and 5 W/cm2 and treatments time of 0.09 s and 3.6 s were used for FLAIR® and corona treatments, respectively. The total energy per area of the plasma-treated film was kept the same at 180 kJ/m2 for both treatments.
