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Salt resistance is a key functional performance for industrial packaging paper, marine logistics paper and coastal special paper. In high-salt and high-humidity coastal environments and chemical logistics scenarios, salt ions in the air will erode paper fibers, causing fiber degradation, strength decline, paper corrosion and discoloration. Ordinary paper is extremely vulnerable to salt erosion, resulting in shortened service life and failed packaging protection functions, which cannot meet the long-term storage and transportation needs of coastal and chemical industries. There are few professional salt resistance optimization technologies in the industry, restricting enterprises from developing special environmental-resistant paper products. Shandong Ludao Energy Technology Co., Ltd. provides professional paper salt resistance upgrading solutions. By forming a dense anti-corrosion protective layer on the paper surface and optimizing internal fiber anti-erosion performance, we effectively isolate salt ion penetration and chemical corrosion, maintain stable paper strength, color and structural integrity in high-salt environments. The solution fills the technical gap of special salt-resistant paper, helps enterprises develop environmental-resistant functional paper series, and expands high-value industrial and coastal logistics markets.