In the paper industry, achieving a flawless finish on coated papers is crucial for printability, gloss, and overall product appeal. Foam generated during the coating process can introduce significant defects such as craters, fisheyes, and pinholes, severely compromising the quality of the final product. Our specialized defoamers are engineered to tackle these challenges head-on, ensuring smooth application, superior surface finish, and enhanced printability for all your coated paper products. As a dedicated manufacturer and supplier in China, we offer advanced solutions tailored to the precise needs of the paper coating sector.

Foam formation in paper coating is a common issue, often arising from air entrapment during mixing, grinding, and the high-shear environments of roller coaters or spray applications. The very surfactants and binders used in coating formulations, essential for wetting pigments and substrates, also contribute to foam stabilization. This foam can lead to inconsistent coating weight, reduced gloss, and ultimately, poor print definition. Our defoamers are designed to counteract these effects by rapidly spreading across the coating surface, disrupting the bubble structure, and preventing the formation of new foam. They work effectively without interfering with the coating's rheology, binder performance, or pigment dispersion, ensuring that the applied coating maintains its intended properties.

We offer a diverse range of defoamers suitable for various coating applications. Our silicone-based defoamers are highly effective, providing excellent heat stability and resistance to challenging chemical environments often found in coating formulations. They are known for their potent foam-breaking capabilities even at low dosages. For applications requiring minimal surface defects and reduced residue, our non-silicone defoamers, including mineral oil-based and polyether-based options, are excellent choices. These products are often more biodegradable and less likely to cause spotting or negative membrane effects, making them ideal for sensitive coatings.

Selecting the right defoamer for your coating application is critical. Factors such as the specific coating formulation (binder type, solids content, viscosity), the application method (roller coater, spray, etc.), and the desired finish (gloss, matte) all play a role. Our technical team works closely with clients to conduct laboratory tests and provide recommendations tailored to their unique needs. We ensure that our defoamers integrate seamlessly into your process, offering superior foam control without causing any adverse effects like cratering or reduced wetting.

As a leading manufacturer and supplier, we provide high-quality defoamers at competitive prices. Our commitment extends beyond product supply; we offer comprehensive technical support to help you optimize the use of our defoamers for maximum efficiency and superior paper coating quality. When you choose to buy from us, you are investing in a partner dedicated to enhancing your production processes and ensuring the excellence of your paper products. Contact us today to explore our range of defoamers and find the perfect solution for your paper coating needs.