As an indispensable auxiliary agent in the printing industry, ink defoamers are mainly used to effectively inhibit and eliminate the foam generated by ink during production, storage and printing, and improve the quality and production efficiency of printed products. With the continuous growth of the global printing market, especially the rapid development of packaging printing, label printing, and digital printing fields, the demand for efficient and environmentally friendly ink defoamers is increasing day by day. The increase in environmental awareness has prompted the market to shift towards low VOC (volatile organic compound) or VOC free defoamer products.

Ink defoamers can destroy the stable structure of foam by reducing the surface tension of ink, so that bubbles can quickly merge, break and escape from the system. Its technical principles include the adsorption effect of surfactants, the viscous effect of thickeners, and the destructive effect of chemical reactive substances. Modern defoamers often use composite formulations that combine multiple mechanisms to achieve better defoaming and anti foaming effects.

Ink defoamers can be divided into organic silicon type, mineral oil type, polyether type, and composite type according to their composition. When choosing, it is necessary to consider the ink type (such as water-based, solvent based), printing process (such as offset printing, gravure printing, flexographic printing), environmental factors (such as temperature, humidity), and environmental requirements. It is generally recommended to conduct laboratory testing based on specific application scenarios to select the most suitable defoamer model and dosage.

Performance evaluation mainly focuses on defoaming speed, foam suppression durability, impact on ink performance (such as fluidity, viscosity, drying speed), compatibility, and environmental indicators. In terms of application effect, high-quality defoamers can significantly improve the clarity, uniformity, and adhesion of printed materials, reduce waste rates, and improve production efficiency.

With the global emphasis on environmental protection, ink defoamers are developing towards a more environmentally friendly, efficient, and multifunctional direction. In the future, bio based defoamers, biodegradable defoamers, and products with low residue and low toxicity will become research and development hotspots. Meanwhile, intelligent and customized solutions will also meet the specific needs of different customers, driving the industry towards green and sustainable development.