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Impact resistance is a key mechanical performance index for heavy-duty packaging paper, express carton board and industrial buffer paper. In the process of logistics transportation, pallet handling and falling collision, ordinary paper lacks instantaneous impact resistance, which is prone to local cracking, surface rupture and structural collapse under sudden external force impact. Especially in cross-regional long-distance transportation and multi-handling scenarios, continuous impact vibration will cause cumulative damage to paper fiber structure, leading to carton breakage and commodity damage. Most paper mills improve impact resistance by increasing pulp dosage and paper basis weight, which greatly raises production costs and reduces product market competitiveness. Conventional toughening agents only improve static tensile strength, with limited promotion effect on dynamic instantaneous impact resistance. Shandong Ludao Energy Technology Co., Ltd. provides targeted paper impact resistance upgrading solutions. By building a flexible three-dimensional fiber cross-linking structure and improving instantaneous stress dispersion capacity, the paper can quickly absorb and buffer external impact force, avoid local stress concentration and rupture damage. The technology does not increase paper basis weight and raw material cost, significantly improves dynamic anti-collision and anti-vibration performance of packaging paper, effectively protects packaged goods from impact damage, and helps enterprises produce high-strength and low-cost heavy-duty packaging paper.