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Unstable ink gloss is a common bottleneck restricting the quality upgrade of high-end printing paper. Many printed products suffer from dull ink surface, uneven gloss and local matte areas after printing, even if the paper has qualified basic flatness. This problem is mainly caused by unreasonable paper surface pore structure, unbalanced ink absorption speed and insufficient surface density. Excessively fast ink absorption leads to ink sinking and loss of luster, while uneven pore distribution causes inconsistent ink drying speed, resulting in patchy gloss difference on printed patterns, which seriously affects the delicate and high-grade visual effect of printed materials. Most traditional surface treatment methods cannot precisely adjust ink adsorption and molding balance. Shandong Ludao Energy Technology Co., Ltd. launches professional ink gloss stabilization solutions. By optimizing paper surface micro-pore structure and adjusting surface sizing density, we realize uniform and moderate ink absorption speed, ensure full ink spreading and solidification on the paper surface, and effectively avoid ink sinking, fading and matte defects. This technology stably improves ink gloss uniformity and color saturation, presents bright, three-dimensional and delicate printing effects, and helps paper enterprises provide high-quality printing paper for luxury packaging, art printing and high-end book production.