Platnick, Brian Scott2014-03-142014-03-141991etd-07082010-020057http://hdl.handle.net/10919/43595This research develops and tests a methodology for improving quality on a continuous process line. A nonwovens line was chosen as the experimental environment to test this methodology. First the process variables were analyzed and classified and a screening experiment was run to determine which variables had a significant effect on the quality measures--air permeability, caliper, basis weight, and appearance--of the filter media. Then a second experiment was run to study fewer variables in more detail. The data were interpreted with ANOVA and regression models. This research makes three general contributions: a methodology for improving quality on a continuous process line, the cause-and-effect relationships between some of the independent and dependent variables, and the second-order and third-order effects show the complexity of the research environment.xii, 151 leavesBTDapplication/pdfenIn CopyrightLD5655.V855 1991.P527Filter clothNonwoven fabrics industry -- Virginia -- Floyd CountyNonwoven fabricsThesishttp://scholar.lib.vt.edu/theses/available/etd-07082010-020057/