Visualization of Activated Area on Polymers
![The shapes of the activation area visualized by the 58 mN/m test ink on the HDPE substrate for configurations A, C and G. The sizes of the substrates seen in pictures for A and C are 50 mm × 50 mm. The treatment times are 100 ms, 3 s, 10 s, 1 s and 20 s for A1, A2, C1, C2, and G1−3 respectively.](https://www.relyon-plasma.com/wp-content/uploads/2021/09/Figure3_The_shapes_of_the_activation_area-1.webp)
A visualization of activated area on polymers is done with test ink to evaluate atmospheric pressure plasma jets (APPJ). The shrinkage characteristics of the test ink are collected using activation image recording (AIR).