PLAZMARK atmospheric pressure type can also be used as a simple monitor for ozone generators!
We investigated the discoloration caused by ozone gas on PLAZMARK O2 cleaning cards No. 1 to 3, which react with various radical species, and long labels No. 41 and 42 for atmospheric pressure plasma. The O2 cleaning cards No. 1 to 3, designed to discolor when reacting with various radical species in vacuum plasma, also discolor when exposed to ozone gas, which is a type of reactive oxygen species, under normal temperature and pressure. When the three types of O2 cleaning cards were treated in a vacuum plasma device, the color difference was found to be No. 1 high sensitivity > No. 2 medium sensitivity > No. 3 low sensitivity; however, in response to ozone gas, the results showed No. 1 high sensitivity ≈ No. 2 medium sensitivity > No. 3 low sensitivity, indicating different responsiveness. [Discoloration Test with Ozone Gas (Partial)] ■ Ozone Generator: Ozone generator OW-5 manufactured by IHI Agritech Co., Ltd. ■ Ozone Monitor: EG-2001 manufactured by Ebara Jitsugyo Co., Ltd. ■ Color Difference Meter: FD-5 fluorescent spectrophotometer manufactured by Konica Minolta (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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【Other Ozone Gas Discoloration Test】 ■Exposure Conditions: Treatment at room temperature and atmospheric pressure with ozone concentrations of 50 to 300 ppm for 0.2 to 10 minutes, calculating the CT value (Concentration × Time = Cumulative Concentration) and plotting the color difference. *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.
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