Why is paper coated?
Paper is coated to improve the surface for printing or other functional uses. The coating provides a better background for ink contrast and holdout. The visual aspects of graphics on a printed surface are greatly enhanced by the coating resulting in more print definition and appeal, as well as improvements in print press functionality. Packaging is printed to provide point of purchase advertising on a store shelf. Other functional uses can include barrier properties (grease resistance, etc), stiffness, glueability and strength or structural integrity.