Titanium dioxide plays a core role in color tinting by leveraging its superior optical properties to achieve base color coverage, color optimization and long-term stability, making it the most critical white base pigment in industrial color matching systems.
Core Optical Functions
Powerful base color hiding: Rutile titanium dioxide has a refractive index of approximately 2.71, which strongly scatters visible light to completely cover the variegated colors, base hues or impurities on the substrate, delivering a fully opaque effect for tinted coatings and finished products.
Brighten and whiten the base system: As the white foundation of the tinting system, it significantly enhances the whiteness and brightness of materials, preventing the colors formulated with other pigments from appearing dull or grayish.
Auxiliary Tinting Functions
Precise hue adjustment: Different grades of titanium dioxide come with subtle inherent undertones (bluish or yellowish). Selecting the appropriate grade helps produce purer whites or specific target hues to meet customized tinting requirements.
Ensure long-term color stability: Titanium dioxide absorbs and reflects ultraviolet rays, preventing organic pigments in the tinting system from decomposing and discoloring. It avoids fading and color difference issues during long-term use, extending the color retention period of finished products.
Typical Application Scenarios
Coating and ink tinting: It improves the hiding power and gloss of colored paints, and guarantees hue consistency across different production batches.
Plastic and rubber tinting: It enhances the surface whiteness of light-colored products, boosts weather resistance for outdoor applications, and prevents discoloration caused by aging.