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Insufficient paper opacity is a common quality defect in cultural paper, printing paper and thin packaging paper. Low opacity causes text and patterns on the reverse side to be visible, seriously affecting printing aesthetics and product qualification rate. Many paper mills attempt to increase filler dosage or pulp thickness to enhance opacity, but such methods often lead to reduced paper strength, increased raw material consumption and uneven paper texture, raising comprehensive production costs. Shandong Ludao Energy Technology Co., Ltd. provides professional paper opacity optimization solutions with independent formula technology. By adopting high-efficiency opacity enhancers and optimizing fiber and filler matching structure, our technology effectively improves light shielding performance without increasing paper basis weight or damaging physical strength. The solution perfectly solves the problem of show-through defects of thin paper, ensures clear and delicate printing effects, and stabilizes batch quality consistency. Suitable for offset printing paper, copy paper, notebook paper and various thin packaging paper, it helps enterprises improve product grade, reduce waste rate and obtain stable market competitiveness.