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The application of microcrystalline wax in packaging paper manifests primarily in the following aspects: Firstly, it imparts gloss and water-repellent properties to the paper, enhancing both the product's visual appeal and protective capabilities. Secondly, as a coating, microcrystalline wax strengthens the packaging paper's resistance to moisture, grease, and adhesion, making it suitable for scenarios requiring isolation from dampness and oils. Additionally, microcrystalline wax improves paper flexibility and heat-sealing properties, making it more suitable for specialised packaging materials such as cardstock and corrugated board. This application not only enhances packaging functionality but also extends product shelf life.