As one of the important industrial fields, the paper industry often encounters the problem of foam in the production process. These foam not only affect production efficiency, but also may have adverse effects on product quality. Therefore, the application of defoamers in the paper industry is particularly important.

Defoamer is a substance that can reduce the surface tension of water, solution, suspension, etc., and prevent the formation of foam or reduce or eliminate the original foam. Defoamers are widely used in processes such as pulp washing and papermaking during the papermaking process. In the pulp washing process, foam will affect the smooth progress of bleaching, cleaning and conveying, and reduce production efficiency. Defoamers eliminate foaming substances such as fatty acid soaps in the slurry, quickly disperse and evenly distribute them in the slurry, thereby achieving the goal of improving work efficiency. In the paper making process, the main function of defoamer is to inhibit the generation of foam, prevent the uniformity of the paper from decreasing, pinholes and paper breaks from occurring.

The application of defoamers in the paper market not only improves production efficiency, but also ensures the quality of paper. In the future, with the advancement of technology and the improvement of environmental awareness, the application of defoamers in the paper industry will be more extensive.