Gloss Uniformity in Coated Paper: Measurements of Commercial Papers, 1991 Coating Conference Proceedings

While many attributes contribute to print quality, printed gloss is certainly one of the important ones to which we are sensitive. Gloss ’pleasingness’ is a multi-dimensional phenomenon comprised of at least two aspects: gloss level and gloss uniformity. Gloss level has been measured for years, but little has been published on the objective measurement of glossuniformity over a wide range of dimensions down to the microscale (below 100 um). We recently reported methods for acquiring, processing, and analyzing high-resolution digitized gloss images of coated papers. In the work reported here, we used this equipment in an attempt to objectively measure and characterize gloss uniformity for a number of commercial coated papers which had an established reputation in the marketplace. The papers were also ranked by a panel and these perceptions of gloss uniformity were then compared to the various measurements. More work is required, but the initial results gave some encouragement that measurements from our gloss imaging equipment generally related to our perception of gloss uniformity.