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High filler loss has always been a major cost and quality pain point in modern papermaking production. In order to improve paper opacity, smoothness and whiteness, most paper mills add a large amount of inorganic fillers such as talc powder and calcium carbonate to pulp. However, due to the small particle size and poor adsorption capacity of fillers, a large number of filler particles cannot be retained on the paper web and will flow into the white water system with filtrate. Excessive filler loss not only increases raw material consumption and raises production costs, but also causes white water turbidity, pipeline deposition and mesh blockage, increasing the frequency of equipment cleaning and downtime. In addition, uneven filler retention will lead to inconsistent filler content in batch paper, resulting in fluctuating paper opacity, thickness and printing performance, seriously affecting product quality stability. Conventional retention agents have limited effects on fine filler particles and are prone to be affected by water quality and pulp temperature.Shandong Ludao Energy Technology Co., Ltd. launches professional filler retention optimization solutions. By adopting high-efficiency composite retention technology, we strengthen the adsorption and flocculation of fine filler particles, firmly lock fillers on fiber surfaces, and greatly improve overall filler retention rate. This technology reduces filler waste, improves white water cleanliness, stabilizes uniform filler distribution in paper, and comprehensively upgrades paper surface fineness and printing stability while reducing enterprise production and environmental protection costs.