The main raw materials of water-based coated paper include base paper, water-based resin, pigment, additive and water. The base paper is usually wood pulp paper or recycled paper, which provides support and structure; water-based resin (such as polyacrylate and polyurethane) is used to enhance the adhesion and waterproofness of the coating; pigment is used to increase the color and gloss of the coating and enhance the visual effect. Additives such as leveling agents, dispersants and desiccants help improve the fluidity, uniformity and drying speed of the coating; water is used as the main solvent to mix the coating ingredients and evaporate during the coating process. The selection and ratio of these raw materials directly affect the performance, quality and environmental characteristics of water-based coated paper.
The waterproofness of water-based coated paper is an important characteristic, which is mainly reflected in the following aspects:Water-based coated paper usually uses water-based resin (such as polyacrylate and polyurethane) as coating materials. These resins have excellent waterproof properties and can effectively prevent water penetration.
The thickness and uniformity of the coating directly affect the waterproof effect. A uniform and appropriately thick coating can form an effective barrier to prevent moisture from contacting the base paper.
During the production process, the use of specific waterproofing treatment technology can further enhan



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