Studies on the application of high-gloss plastic pigment for paper coating (I) - effect of the type of plastic pigment on the quality of coated paper

초록

This study was carried out to determine the effect of the type of plastic pigment on the coating structure and printability of coated paper. Three kinds of plastic pigments (solid-bead type, binder type and hollow type) were used for this purpose. In this research, it was observed that particle shape and structure of plastic pigment had influenced the rheology of coating color, the state of packing, and the properties of coated paper. Inorganic pigments used in this research were platelike kaolin clay and rhombic calcium carbonate. Three kinds of plastic pigments were blended with two inorganic pigments, respectively. The combination of pigments were carried out (1) to determined the effect of particle structure of plastic pigment on the state of dispersion of coating color, (2) to observe the effect of calendering temperature on the property of coated paper prepared with different plastic pigments. The data indicated that binder and hollow type plastic pigment gave the best results in improving the properties of coated paper such as paper gloss, opacity and air permeability.