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Ashing residue is a key detection indicator for food-grade paper, medical packaging paper and environmentally friendly degradable paper. After high-temperature combustion, unqualified paper will produce excessive residual ash, black carbon residue and inorganic impurity precipitation, which indicates excessive filler residue, unpurified pulp impurities and non-environmental auxiliary components. Excessive ashing residue directly causes paper to fail food safety and medical hygiene detection, limits the application of degradable paper in green packaging fields, and leads to batch order rejection. Most paper mills pursue paper opacity and strength by adding a large amount of inorganic fillers, resulting in high ash content and poor environmental performance. Conventional pulp purification processes only remove large particle impurities and cannot filter micro inorganic residues, making it difficult to reduce ashing residue fundamentally while ensuring paper performance. Shandong Ludao Energy Technology Co., Ltd. launches targeted paper ashing residue reduction solutions. By deeply purifying pulp micro inorganic impurities, optimizing green auxiliary formula and controlling filler dosage accurately, we effectively reduce combustion ash and carbon residue without affecting paper strength and optical performance. The solution enables paper to meet low-ash environmental protection standards, pass food and medical hygiene detection, and expand the application scope of green degradable paper products.