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Unpleasant odor is a common quality defect that restricts the grade of high-end paper, food packaging paper and household tissue paper. In the papermaking process, residual chemical auxiliaries, microbial metabolism substances, impure pulp raw materials and unclean circulating water systems will produce peculiar smells such as chemical odor, mildew odor and earthy odor. Paper odor not only reduces product user experience, but also fails to meet the safety and hygiene standards of food contact and daily contact paper products, leading to market rejection and customer complaints. Many traditional deodorization methods simply add masking agents, which only cover up the odor temporarily and cannot fundamentally eliminate the odor source, and may even cause secondary chemical residue problems. Shandong Ludao Energy Technology Co., Ltd. provides professional paper odor optimization and purification solutions. By adopting high-efficiency deodorizing and purification technology, we decompose odor-causing substances in pulp and water system, remove residual volatile chemicals and microbial odor sources from the root, and realize pure and odor-free paper quality. The solution is environmentally friendly and non-toxic, does not affect paper physical performance, printing effect and bonding performance, effectively improves paper hygiene grade, and helps enterprises produce high-quality, safe and odor-free high-end paper products.