HuiZhou StarColor Water Based Ink

【Product Overview】 This ethylene oxide (EO) sterilization indicator ink is a chemical indicator material specifically developed for monitoring low-temperature sterilization processes. It exhibits extremely high sensitivity to ethylene oxide gas concentration, ambient humidity, and contact time. Once the sterilization process reaches the set parameters, the ink color undergoes a significant and irreversible change, clearly informing the user that the package has undergone EO sterilization. 【Main Application Scenarios】 Medical Flexible Packaging: Medical Tyvek packaging bags, paper-plastic bags, disposable surgical packs. Monitoring Products: Production of EO sterilization indicator strips, indicator cards, and self-adhesive labels. 【Core Technological Advantages】 Sensitive and Accurate Color Change: Optimized for EO sterilization characteristics, it boasts extremely high contrast before and after color change, making it easy to visually identify and eliminating sterilization judgment errors. Wide Substrate Compatibility: It exhibits excellent adhesion and clarity, especially on DuPont Tyvek, medical dialysis paper, and various composite films. High Chemical Stability: The cured ink film exhibits stable performance and will not fade naturally or change color accidentally during long-term shelf storage. Safe and Environmentally Friendly: Utilizes a non-toxic formula, free of lead and other heavy metals, and complies with REACH/RoHS directives, ensuring safety for medical device contact. Selectable Color-Changing Schemes: Offers mainstream color-changing modes (e.g., pink to yellow, purple to green), catering to industry practices in different countries and regions. [Technical Parameter Reference] Sterilization Environment: EO concentration 600, temperature 54°C, relative humidity 60%. Standard Compliance: ISO 11140-1 Class 1. Printing Method: Flexographic printing. Color-Changing Time: Corresponds to sterilization cycle requirements.