Does my Grand Rapids Press newspaper have wrinkles?
Wrinkles are caused by friction between newsprint and press rollers. Water-based flexographic ink, which is used to print some newspapers, causes greater friction than oil-based inks that are typically used to print newspapers. Though flexo ink contributes to wrinkling, it nevertheless has superior graphics reproduction capabilities and is non-toxic to users and the environment. It also does not rub off on readers' hands and clothes.