High Purity Odb-2 CAS 59129-79-2 Thermal Paper Leuco Dye Color Former Black Odb-2 Chemical Raw Material. High Optical Density: Delivers intense deep-black images with exceptional clarity and contrast for POS receipts. Fast Thermal Response: Highly sensitive reaction speed suited for ultra-high-speed modern thermal printing heads. Superior Image Stability: Excellent resistance against ambient heat, light, humidity, oil, water, and plasticizer degradation. Narrow Particle Size: Low impurity levels ensure smooth dispersion and prevent printhead clogging during production. Free Sample Available: Free 100g-500g samples provided for lab testing; buyer covers only courier cost. Flexible Packaging: Standard 20kg/25kg kraft bags with PE liner; jumbo bags and custom labeling available. Fast Dispatch Time: Standard stock orders dispatched within 3-5 working days after payment confirmation.