Pulp and Paper

Pulp and Paper

Special bentonite for papermaking is scientifically processed from high-quality bentonite raw ore. It has the advantages of fine particle size, high purity, good whiteness, strong cation exchange capacity, good water absorption and swelling, good suspension, and a wide range of suitable pH. When exposed to water, the volume increases several times to 30 times, and the specific surface area increases to 700-800 m2/g. The main mineral component, montmorillonite, has negative charges on its microscopic crystal surface and positive charges on its edges. When used in combination with cationic polymers, it can achieve the effect of assisting retention and filtering. In addition, it can also absorb resin, control stickies, etc.