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Foam interference is ubiquitous in the pulping and papermaking process. A large number of fine and stable foams generated in circulating water and pulp will wrap air, hinder fiber precipitation and uniform molding, resulting in paper bubbles, pinholes and uneven thickness. Excessive foam will also reduce the utilization rate of pulp and auxiliaries, increase water turbidity, aggravate wastewater treatment load, and seriously restrict production efficiency and product quality. Traditional defoamers have short action time and poor stability, requiring frequent addition and increasing comprehensive costs. Shandong Ludao Energy Technology Co., Ltd. launches efficient and long-acting defoaming and foam control solutions. Our high-stability defoaming agents can quickly eliminate existing foam and inhibit secondary foam generation for a long time, purify pulp and circulating water environment, ensure uniform fiber molding, and effectively eliminate foam-induced paper defects. It reduces auxiliary dosage and water treatment pressure, helping paper mills achieve high-quality and low-cost stable production.