The main component of polyurethane foam (PU foam) is polyurethane. The raw materials are mainly polyisocyanates and polyols. By adding appropriate additives—the most important of which is a series of foaming additives related to foaming— -A large amount of foam is generated in the reaction product, ......
Read MoreThe difference between pu pigment and dye is that the coloring method of the object is different. The dye can penetrate into the inside of the object for coloring, such as the inside of the fiber; while the PU pigment can only act on the surface of the object, such as the surface of cloth.
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