Titanium dioxide (TiO₂) is widely used as a white pigment in food packaging due to its high refractive index, which provides opacity and brightness. However, formulating high-solid content white UV inkjet inks with TiO₂ presents challenges. The large and dense TiO₂ particles tend to settle in low-viscosity systems, making it difficult to maintain stability, viscosity, and filtration performance while ensuring optimal jetting and curing properties. Achieving high pigment loading without increasing viscosity or affecting dispersion quality is crucial for ink manufacturers.
UBEDISP® hyperdispersants address these challenges by enabling formulators to develop whiter, more stable UV inkjet inks with higher TiO₂ content. Their advanced molecular design improves the dispersion of inorganic particles in UV formulations, achieving low-viscosity, high-solid content dispersions that maintain excellent filterability and anti-settling properties over time. These dispersants enhance the compatibility of pigments with UV ink formulations, ensuring better performance in demanding printing applications.
A key advantage of UBEDISP® dispersants is their ability to significantly reduce viscosity, allowing higher pigment loading without compromising ink performance. Their exceptional pigment stabilization prevents re-agglomeration and ensures a uniform particle distribution, even under high-temperature conditions. Additionally, their anti-settling properties minimize sedimentation, keeping sediments soft and easy to redisperse, ensuring long-term ink stability. These benefits result in improved opacity, better print definition and performance, greater efficiency in ink production, and extended ink durability.
For more details on how UBEDISP® hyperdispersants can optimize your UV inkjet ink formulations, fill out the form and download the full document to explore their benefits and technical insights.
