CMC can help control and adjust the rheology of coating and the dispersion of pigment to obtain coating with pseudoplasticity, enhance the water retention of the coating and have good film-forming property. Adding to the slurry: it can improve the refining efficiency, shorten the beating time, and improve the retention rate of various additives, fillers and fine fibers; applying on surface: it has good rheological and film-forming properties, so it can increase the brightness, glossiness, stiffness and smoothness of the paper and improve the surface strength and wear resistance of the paper. Compared with traditional sizing agent (PVA) and wet-end additive (PAM), it has the advantages of small dosage, suitable for all kinds of high, medium and low coating speed, stable paper quality, simple sewage treatment, environmental protection, etc.
