Cellulose White Pigments – A Sustainable Replacement to TiO2 for Health Sensitive and Industrial Applications?

A proprietary process with low-to-zero CO2 emissions has been developed, and scaled up, by Seprify AG to produce pure cellulose microparticles. At a specific size these microparticles have unique capabilities to scatter light thereby allowing it to be very efficient white pigments. As such, cellulose white pigments (CWP) can be an excellent sustainable, renewable, and nontoxic alternative to metal oxides, including but not limited to, titanium dioxide. Moreover, CWPs have the ability to reflect UV and IR wavelengths leading to their potential use as renewable materials for radiative cooling. In addition to being efficient opacifiers, CWPs can be excellent emulsifiers and rheology modifiers. They have found applications in paints, coatings, food, pharma and cosmetics.