The final appearance of paper is significantly influenced by its coating. Incorporating Optical Brightening Agents (OBAs) into paper coatings is a common practice to achieve a superior level of whiteness and brightness, making the paper more visually appealing and enhancing its printability. NINGBO INNO PHARMCHEM CO.,LTD. offers Optical Brightening Agent 4PL-C, a specialized product designed for such applications.

When applied in the coating process, OBAs like our 4PL-C can be added at any stage. The performance is often further optimized when used in conjunction with carriers such as CMC, PVA, and starch. The usual dosage recommendation is between 0.1% to 1.5%, calculated based on the dry pigment content. This ensures that the coating optical brightener is evenly distributed, providing a consistent and brilliant finish to the paper.

The use of an effective optical brightener for paper in coatings plays a crucial role in achieving the desired aesthetic. It not only makes the paper appear whiter but can also enhance the vibrancy of printed colors, as the enhanced white background provides a better contrast. For paper manufacturers looking to buy advanced paper chemicals, incorporating 4PL-C into their coating formulations is a strategic move.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing chemical solutions that meet the evolving needs of the paper industry. Our Optical Brightening Agent 4PL-C is a testament to this commitment, offering a high-quality liquid optical brightener that contributes significantly to the final quality of coated paper products. By selecting our products, manufacturers can ensure a premium finish that meets market demands for brightness and clarity.