Identification of Bamboo Viscose Fibers and Conventional Viscose Fibers

Bamboo viscose fibers and conventional viscose fibers were measured by optical microscopy, scanning electron microscopy （ SEM ）, Fourier transform infrared spectrometer （ FTIR ）, and thermogravimetric analyzer/FTIR spectrometer （ TG-FTIR ） respectively. At last, the method based on the testing of the Fourier transform near infrared （NIR） spectra was proposed to identify these two kinds of fibers. The discrimination models between bamboo viscose fibers with conventional viscose fibers were built by means of Ward＇ s algorithm and Hierarchical cluster analysis（HCA） after the first derivative and vector normalization pretreatment, and were verified finally. The results indicate that these two kinds of fibers are similar in their morphology both of cross-section and longitudinal direction. What＇s more, the FTIR spectra, the thermostability, and decomposition products of TG-FTIR experiment are similar, and the testing results contribute little to the effective identification of the two fibers. However, the accuracy of the NIR spectra model is high, and the two kinds of fibers can be classified into two separated groups to achieve the identification simply and exactly.