Paper auxiliaries defoamer: how to choose and use accurately?

Feb 25, 2025
In the ancient and ever-developing industrial field of papermaking, many chemical additives play an indispensable role. Among them, paper auxiliary antifoam agent with its unique function has become an important factor to ensure the smooth running of the paper making process.

Paper involves a number of complex processes, and foam can be generated right from the start of the pulping process. When wood or other fibre raw materials are processed into pulp, mechanical mixing, the use of chemical additives, and in the transfer process between tanks, air is easily mixed into it, forming foam.


Paper auxiliary defoamers can effectively solve these foam problems. The molecular structure of the defoamer has special properties that quickly reduce the surface tension of the foam. When defoamer is added to the paper pulp containing foam, defoamer molecules will quickly migrate to the surface of the foam, replacing the original surfactant molecules of the foam.

While defoamers are critical to solving foam problems in papermaking, the amount of defoamer added needs to be strictly controlled. Adding too little may not achieve the desired defoaming and foam inhibition effect, while adding too much may have a negative impact on the quality of the paper.
Paper auxiliary defoamer plays an irreplaceable role in the modern paper industry. It effectively solves the foam problem in the papermaking process and improves the quality of paper and production efficiency. With the continuous development of the paper industry, the performance requirements of paper auxiliary defoamer will continue to improve, the development of more effective, environmentally friendly, adaptable defoamer.
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