2.Waterborne polyurethane is also suitable for decorative coatings due to its high gloss, elasticity and good compatibility with pigments.It is used as a coating on the outer surface of packaging paper bags and cartons, not only for decoration, but also to increase strength and improve packaging quality.Wallpapers with water-based polyurethane as the topcoat are waterproof and stain resistant and can be washed with water. Compounding water-based polyurethane with other water-based resins can make paper have good performance.The paper coating contains a large amount of filler. Generally, calcium carbonate, porcelain clay, dispersant, and water are ground into a ball mill tank to a suitable fineness.Add this material and water-retaining agent, defoaming agent, whitening agent, and water-based polyurethane emulsion to the high-speed dispersing machine to disperse uniformly to obtain water-based polyurethane paper coating.

sinograce chemical produces paper coatings, wetting agents, defoaming agents and other additives for use with polyurethane paper coatings.

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