
The Physics of Whiteness: Measuring ISO Brightness and UV Reflectance
The Physics of Whiteness: Balancing Visual Appeal with Inventory Stability. In the global tissue trade, the distinction between ISO brightness (457nm reflectance) and CIE whiteness defines long-term brand equity. This technical report analyzes the risks of OBA-driven artificial brightness, including skin irritation and rapid yellowing during 40HQ container storage. Explore how 100% OBA-free virgin wood pulp achieves a natural 85-92% brightness level, ensuring compliance with FDA/EU hygiene standards while maintaining batch consistency through D65 illuminant protocols and reinforced 5-ply export packaging.







