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Alkali resistance is a key special performance index for architectural decorative paper, wall base paper and industrial alkaline contact packaging paper. In construction decoration, plastering and alkaline environment storage, ordinary paper is prone to alkaline erosion damage. When paper contacts alkaline mortar, alkaline cleaning agents and humid alkaline air, internal fiber bonding structure will be rapidly hydrolyzed and damaged, resulting in strength sharp decline, surface bubbling, layer peeling and discoloration fading. Poor alkali resistance greatly shortens the service life of architectural decorative paper and causes wall surface bulging and peeling after construction. Most conventional waterproof and anti-corrosion treatments only adapt to neutral and acidic environments and cannot resist alkaline molecular erosion. Ordinary modified paper will age and fail rapidly in high-alkali scenarios, lacking long-term environmental stability. Shandong Ludao Energy Technology Co., Ltd. develops dedicated paper alkali resistance optimization solutions. By building alkali-resistant protective molecular layers and stabilizing fiber structure against alkaline hydrolysis, we effectively isolate alkaline medium erosion. The treated paper maintains stable strength, color and structural integrity in long-term alkaline environment, adapts to building decoration and industrial alkaline scene application, and solves the problem of easy aging and damage of paper in alkaline working conditions.