Pulp and Paper

Dispersants play a critical role in the paper industry, particularly in the formulation of paper coatings and fillers. These specialized chemicals ensure the even distribution of fine particles, such as pigments and fillers, in water-based suspensions used to coat paper surfaces. By preventing particle clumping and sedimentation, polyacrylate dispersants enhance the overall stability and fluidity of the coating mixture, leading to smoother, more uniform coatings. This results in improved paper properties like brightness, opacity, and printability. Additionally, dispersants help optimize the efficiency of filler use, reducing costs and improving the paper’s final quality and performance.

Paper machines and other pulp processing equipment can be susceptible to the formation of biofilms; organic biocides are used to control and prevent biofilm formation on process equipment such as pipes, tanks, and screens. Organic biocides like DBNPA, isothiazolin and glutaraldehyde are frequently used in various areas to control bacterial growth in process/utility water, starch solutions, and in other susceptible process fluids.