Preparation Method For Printing Ink

Printing inks are primarily categorized into two types based on their solvents: water-based inks and solvent-based inks. Taking water-based black ceramic ink as an example, the preparation process involves key steps such as solvent selection, the choice and performance of dispersants, and stability assessment.
In the preparation of water-based black ceramic ink, propylene glycol and diethylene glycol are selected as the primary solvents, with an optimal solvent content of 15%. The solvent acts as a carrier within the ink, regulating the system's viscosity and rheological properties; its selection requires consideration of compatibility with colorants, dispersants, and additives. The dispersant is a critical factor influencing ink stability; using dispersant SRE-4026X enables the production of an ink with a particle size of 164 nm and a viscosity of 19.2 mPa·s. Ink stability is characterized through sedimentation tests, and ink prepared with the appropriate dispersant shows no signs of phase separation over a period of 30 days.