title: Rapid, nondestructive denim fiber bundle characterization using luminescence hyperspectral image analysis.
abstract: An investigation into the performance of luminescence-based hyperspectral imaging (LHSI) for denim fiber bundle discrimination has been conducted. We also explore the potential of nitromethane (CH3NO2) -based quenching to improve discrimination, and we determine the quenching mechanism. The luminescence spectra (450-850 nm) and images from the denim fiber bundles were obtained with excitation at 325 or 405 nm. LHSI data were recorded in less than 5 s and subsequently assessed by principal component analysis or rendered as red, green, blue (RGB) component histograms. The results show that LHSI data can be used to rapidly and uniquely discriminate between all the fiber bundle types studied in this research. These non-destructive techniques eliminate extensive sample preparation and allow for rapid hyperspectral image collection, analysis, and assessment. The quenching data also revealed that the dye molecules within the individual fiber bundles exhibit dramatically different accessibilities to CH3NO2.
authors.affiliation: Department of Chemistry, Natural Sciences Complex, University at Buffalo, State University of New York, Buffalo, NY 14260-3000 USA.
authors.forename: Randi E
authors.initials: RE
authors.lastname: Deuro
authors.forename: Kristen M
authors.initials: KM
authors.lastname: Leiker
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Wang
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Deuro
authors.forename: Tammy M
authors.initials: TM
authors.lastname: Milillo
authors.forename: Frank V
authors.initials: FV
authors.lastname: Bright