IMPACT OF COATING ON PAPER PROPERTIES

Abstract

There are many kinds of paper made in the world today, for many uses, but pigmented coated paper for printing is by far the most common. Speciality paper for specific function such as sandpaper, carbon tissue, gummed paper, photographic papers, wallpapers, conductive papers, are all coated one way or r another but not in the volume of pigment-coated printing paper. Frequently, these special operations are classed as converting and carried out remotely from the paper mills. Pigment coating was invented to provide the printer with a sheet with superior surface for printing. It provided enhanced smoothness, better ink receptivity, more whiteness, and more gloss. A much improved printed sheet was obtained. The benefits justified the extra cost. By 1851, pigment coated paper was recognised product