In the printing industry, ink is one of the core materials, and its quality directly affects the visual effect and overall quality of the final product. However, ink often produces foam in the process of preparation and use. These problems foam will not only affect the fluidity and uniformity of ink, but also may lead to defects such as spots and ink breaks on the printing surface, seriously affecting the printing quality. Therefore, ink based defoamers play a crucial role in the printing process.

Ink defoamers mainly promote the rupture and dissipation of foam by reducing the surface tension of ink. Its chemical structure determines the physical and chemical properties as well as the defoaming effect of the defoamer. A good defoamer should have a low surface tension, be able to quickly penetrate into the foam surface, reduce the interfacial tension between bubbles and liquid, and effectively eliminate foam. In addition, the compatibility of defoamers is also crucial, and it is necessary to ensure good compatibility with ink base materials and other additives to ensure their uniform distribution and long-term effectiveness in the ink.

In practical applications, the amount of ink defoamer added should be within a reasonable range. Excessive use may lead to a decrease in ink fluidity and even affect drying speed. Therefore, manufacturers usually determine the optimal type and amount of defoamer through a series of experiments to achieve the best defoaming effect.