UV inkjet inks based on carbon black are used in many packaging applications, including food packaging, and must meet multiple requirements.
Addressing these, the main challenge lies in the efficient dispersion of the pigment in the ink. Among other considerations, the viscosity must be low for the digital printing through small nozzles for ensuring a high-performing printability.
In response to this challenge, the use of UBEDISP® hyperdispersants, efficient additives in reducing interactions between particles, provides low viscosity formulations with long-term stability. Among other properties, these hyperdispersants have a unique molecular structure designed to interact effectively with the surface of carbon black pigment. In this regard, UBEDISP® hyperdispersants stands out for achieving exceptional viscosity reduction, efficient dispersion of carbon black pigments, and outperforming filterability of the ink.
Furthermore, the stabilization of the pigment with UBEDISP® is emphasized to ensure stable chemical-physical properties over extended periods and under various storage conditions. How do different UBEDISP® dispersants act in the preparation of a carbon black dispersion? We provide detailed insights in our case study!
