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The role of aluminum sulfate in the surface sizing of cardboard
In the sizing process of surface sizing agent, its sizing performance is affected by various environmental factors. For example, the pH, conductivity, and temperature of the system, as well as the sizing method and drying process of the paper machine, will all affect the sizing effect of the surf...Read more -
The causes of pulp decay in papermaking process and its control methods
Slurry is the result of the multiplication of bacteria and molds. The carbohydrates in the pulp, a small amount of protein, and hydrolyzed sugars are all nutrient sources for microorganisms, especially organic wood pulp. Since wood contains about 5% of low-molecular sugars, they are deeply resolv...Read more -
Dry strength agent enhancement mechanism
Most of the natural and synthetic dry strength agents are hydrophilic polymers. These polymers are dispersed between the fibers to increase the number of bonds between the fibers, thereby achieving the purpose of improving the strength of the paper. Most dry strength agents contain cationic group...Read more -
Why add surface sizing agent? what is the benefit?
In recent years, with the transformation of the paper industry to neutral papermaking, cheap calcium carbonate series fillers have been widely used in neutral papermaking. The addition of styrene-acrylic surface sizing agent can reach 30%-40% of the total pulp weight. %, it may be higher. With th...Read more
