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In order to confirm the plasma processing effect at a required point by visual observation, the plasma-chemical indicator (PCI) was fabricated. In this research, the effects of NC and PA on discoloration properties of PCI was examined, since the color of prepared printing ink was fairly affected by the kind of binder. Viscosity effects of these binders on the sensitivity of PCI were also investigated. As an Application of PCI, the 3D mapping was created by the color difference E*ab obtained by 15 min of H O plasma irradiation using 25 pieces of PCI. 2 It was found that the influence of viscosity on change of color is small, comparing with the influence by the kind of binder. The expansion effect of an indicator range was able to be confirmed for H 2 O and H 2 O 2 plasma, but not for O 2 plasma. The optimal mixing ratio of NC and PA for H 2 O and H 2 O 2 plasma was 5 and 15 wt/wt, respectively. 3D mapping which visualized the situation was well in agreement with the visual observation results.

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