Abstract
Zeolites and precipitated calcium carbonate (PCC) were applied together with a vinyl acetate ethylene (VAE) emulsion to identify an alternative pigment for silica to improve runnability and develop the application technology for the VAE emulsion. The low shear and high shear viscosity of the coating color were decreased when zeolites were mixed with PCC. The coating color exhibited lower shear and higher shear viscosity when the emulsion contained VAE than when it containing poly(vinyl) alcohol. Silica with a large specific surface area and pore volume exhibited a small surface contact angle, and the coating color also showed a smaller contact angle with zeolites having a porous structure than with PCC. Silica with a large specific surface area and pore volume showed high print density. For each type of pigment, the print density of coated paper was higher when using zeolites than when using PCC. When the VAE emulsion binder was applied, the ink density decreased.
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