FIG. 6 is a graph that indicates the measurement results of the water contact angle. As can be seen from FIG. 6, the water contact angle was within ±10% in the width direction with respect to the average value under all of the irradiation conditions. In addition, the polypropylene (PP) films were also placed at 10 mm, 30 mm, and 50 mm in FIG. 6 to conduct the same test, and the water contact angle was confirmed to be within ±10% with respect to the average value shown in FIG. 6. These results indicate that the plasma uniformly jets from the entire region of the blowout outlet.
The plasma generator 10 according to the first embodiment has been described above.
Variation Examples
FIGS. 7 to 11 are partial cross-sectional views illustrating variation examples of the dielectric barrier plasma generator according to the first embodiment. The configuration of the parts not shown in FIGS. 7 to 11 is the same as that of the plasma generator 10 according to the first embodiment. In the following, points that differ from the plasma generator 10 described above will be mainly described, and points in common will be omitted or simplified. The same symbols will be assigned to configurations that are common to the plasma generator 10.
