Evaluation using atmospheric pressure plasma <Verification of correlation with contact angle>
The color difference ΔE*ab increases! Even weak plasma treatment effects can be detected by the indicator.
Using No. 41 (high sensitivity) and No. 42 (low sensitivity) of "PLAZMARK atmospheric pressure plasma," we will confirm the color change of the indicators before and after dry air atmospheric pressure plasma treatment, as well as the contact angle of water on PET film and the color difference of the indicators. The No. 41 (high sensitivity) indicator showed a correlation with the contact angle of water on PET film under weak plasma treatment conditions, while the No. 42 (low sensitivity) indicator also showed a correlation with the contact angle of water. For detailed technical data, please refer to the related links. 【Equipment Information】 ■ Equipment Model: AP-2000 manufactured by Denshi Giken Co., Ltd. Dielectric barrier discharge atmospheric pressure plasma device ■ Color Difference Meter: Fluorescent spectrophotometer manufactured by Konica Minolta, Inc. FD-5 (Measurement light source M1, illumination system C light source, 2° viewing angle) *For more details, please refer to the related links or feel free to contact us.
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Sakura Color Products Corporation is a comprehensive stationery manufacturer headquartered in Morinomiya, Chuo Ward, Osaka City. The core technology of Sakura Color Products lies in its long-developed color-matching technology since its founding, as well as its comprehensive technology in the field of interfacial chemistry, cultivated through the formulation design and process design of drawing materials, writing instruments, and printing inks. The company has also developed unique inks that change color through chemical reactions with specific compounds such as energy sources like heat and light, as well as sterilization and disinfection gases. Additionally, the company conducts plastic molding, precision metal processing, and ink filling for tubes, marker and sign pen containers, and ballpoint pen containers at its own factory.