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Die-cutting performance is a crucial processing indicator that determines the finished product yield of packaging paper, carton board and printed paper. In the high-speed die-cutting process, many paper products suffer from continuous quality problems such as irregular cutting edges, fiber burrs, corner cracking and layered peeling. These defects are mainly caused by unbalanced paper internal toughness, insufficient surface compactness and unstable fiber bonding strength. Poor die-cutting adaptability will lead to a large number of defective products in post-processing, seriously reducing production efficiency and causing economic losses such as material waste and order delay. Traditional process adjustments can only slightly improve surface quality but cannot fundamentally solve the internal structural defects that cause die-cutting failure. Shandong Ludao Energy Technology Co., Ltd. provides professional paper die-cutting performance optimization solutions. By refining fiber interweaving structure, balancing toughness and stiffness ratio, and strengthening internal and surface bonding density, we greatly enhance the pressure resistance and cutting stability of paper during high-speed die-cutting. The treated paper features neat incision, no burrs, no corner cracking and no delamination after die-cutting, perfectly adapting to automated high-speed die-cutting equipment. It effectively reduces processing defective rate, improves finished product uniformity, and helps printing and packaging enterprises achieve high-efficiency and high-precision processing production.