Defoamer for Papermaking

Defoamer for papermaking is specially designed for the foam in the papermaking process in the papermaking industry. The foam problem of the product during the papermaking process must be solved, otherwise it will seriously affect the stability of production and the quality of paper.

In the papermaking process, defoaming and foam suppression are the most important. Once the gas content (by volume) in the pulp reaches about 0.5~1.0%, it must be controlled, otherwise it will cause paper breaks, white water level fluctuations, pump frequency fluctuations, etc. ; INVINO papermaking antifoam has a strong anti-foaming effect on white water, can quickly remove the fine bubbles entrained between the fibers, eliminate the bubbles floating on the surface of the slurry, the air that can be dissolved in the slurry, and eliminate the large water surface Bubbles to eliminate the influence of bubbles on the process, avoid the formation of holes, reduce paper breaks, prevent the overflow of the pulp tank, and ensure the loss of fibers and wet end chemicals. The paper has better uniformity and quality Greatly improved.

paper industry

What is Defoamer for papermaking ?

The defoamer for papermaking is essential for maintaining the efficiency and quality of various processes within the papermaking industry. It is particularly suitable for eliminating surface foam in papermaking white water systems, including those containing rosin gum and modified starch. It effectively removes bubbles adsorbed on fibers during the dehydration process, ensuring smooth operations and high-quality paper products. Additionally, defoamers are crucial in systems containing polyacrylamide retention aids, as they help eliminate foam and improve the retention of fine particles. In white water systems with AKD emulsion, defoamers prevent surface foam and remove bubbles during fiber dehydration, which is vital for achieving desired paper properties. Defoamers are also beneficial in starch gelatinization processes and other scenarios where silicone-based defoamers are not suitable. By integrating a specialized defoamer, papermaking operations can achieve better efficiency, product quality, and overall performance.

Defoamer for papermaking lists

Product Code Appearance Solid Content(%) PH Viscosity(cps) Characteristics
INVINO-5030 White Emulsion 30.0±1.0 6.0-7.0 250-500 Equivalent as Nalco-74192. FA-3000, Afranil MG,work based 35-45℃
INVINO-5045 White Emulsion 30.0±1.0 6.0-7.0 250-500 Work based 40-55℃
Equivalent as Afranil SLO
INVINO-5060 White Emulsion 30.0±1.0 6.0-7.0 250-500 Work based 50-60℃,Equivalent as Afranil PR 8285