| abstract |
A system for detecting the location and uniformity of a coating on a substrate is provided. The process comprises the steps of adding a fluorescent dye material to the coating material, coating the substrate with the fluorescent dye-containing coating material, and viewing the pattern obtained thereby under an ultraviolet light source. A gable-top container employing a nonheat sealing coating containing a fluorescent dye on a portion thereof is described. The fluorescent dye is used to aid in evaluating the location and uniformity of the coating. |