Water-based defoamer for papermaking: an indispensable papermaking additive

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Water-based defoamer for papermaking: an indispensable papermaking additive
By : Zilibon Chemical

2025/2/7
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In the huge and complex production process of the papermaking industry, many seemingly minor factors can have a huge impact on the quality of the product. Water-based defoamer for papermaking is such a key factor. It silently plays its role and solves the annoying foam problem in the papermaking process.

The papermaking process involves multiple processes. Starting from pulping, a large amount of chemical agents are added, such as cooking agents, bleaching agents, etc. During operations such as stirring and pumping, air is drawn into the system, and combined with the surfactants in the slurry, it is easy to produce foam. When the paper enters the coating process, the ingredients in the coating may also cause the formation of foam.

Foam will occupy the space of the reactor and pipeline, reduce the effective volume, and reduce the material handling capacity. Moreover, the foam is easy to overflow, resulting in a messy environment around the production equipment, which requires frequent cleaning, thereby delaying production time. If the foam remains in the paper, it will cause defects such as holes and spots on the paper, affecting the physical properties of the paper such as flatness and strength.

Water-based defoamers for papermaking use water as the dispersion medium and do not contain organic solvents or have a low organic solvent content. This means that it will not release a large amount of volatile organic compounds during use, which meets the requirements of modern environmentally friendly production. For paper mills, the use of water-based defoamers for papermaking helps reduce pollution to the environment and reduce environmental pressure.

Water-based defoamers for papermaking play a vital role in the papermaking industry. It effectively solves the foam problem in the papermaking process, improves production efficiency, ensures paper quality, and has many advantages such as environmental protection. With the continuous development of the papermaking industry and the improvement of product quality and environmental protection requirements, the research and development and application of water-based defoamers for papermaking will continue to develop and progress, providing strong support for the sustainable development of the papermaking industry.
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