Vibrational spectroscopic techniques of FT-Raman, mid-infrared attenuated total reflec tance, mid-infrared diffuse reflectance, and near infrared diffuse reflectance are investigated for the quantitative analysis of wool/polyester textile blends. Data sets based on undyed fabric samples are analyzed using both classical least squares and partial least squares approaches. The PLS calibrations based on the ATR and first derivative NIR data are superior with standard errors of cross validation less than 1.5. A validation set consisting of samples extremely different from those in the training set gives standard errors of prediction of 5.2 and 2.4, respectively. These models are used to analyze blended batts and washed fabric samples. Useful results can be obtained independent of such parameters as sample structure and coloration. The complementary nature of these techniques makes their combination valuable as an industrial quality control, monitoring, and trouble shooting tool.
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References
1.
Australian Standard Method2001.7, Standards Australia, North Sydney, 1983 .
2.
Basch, A., and Tepper, E., TheAnalysis of Polyester-Wool Mixtures by Attenuated Total Reflectance Infrared Spectroscopy, Appl. Spectrosc.27(4), 268-270 (1973).
Chase, D.B., and Rabolt, J.F., in "Fourier Transform Raman Spectroscopy," D. B. Chase and J. F. Rabolt, Eds., Academic Press, San Diego, 1994, pp. 1-48.
5.
Church, J.S., and Leong, W.H., The Analysis of Wool Textile Blends Using FT-IR Photo-Acoustic and FT-Raman Spectroscopies, in "Proc. 9th Int. Wool Text. Res Conf, Biella," vol. 4, 1995, pp. 114-122.
6.
Church, J.S. , and Woodhead, A.L., Depth Profiling of Wool Fibres by FT-IR ATR Spectroscopy, Mikrochim. Acta14, 179-180 (1997).
7.
Church, J.S., and Woodhead, A.L., Rapid Regain Measurements in the Mill, in " Proc. Top-Tech '96," CSIRO, Geelong , Australia 1996, pp. 376-379.
8.
Clark, M.J., and Hickie, T.S., TheQuantitative Analysis of Some Binary Mixtures of Fibres by Methods of Infrared Spectroscopy, J. Textile Inst.66, 243-248 (1975).
9.
Davidson, R.S. , and Fraser, G.V., The analysis of Textile Mixtures Using Fourier Transform Infra-red Photoacoustic Spectroscopy, J. Soc. Dyers Colour.100, 167-170 (1984).
10.
Davidson, R.S. , and King, D., A. NewMethod of Distinguishing Wool from Polyester Fibre and Cotton Fabrics, J. Textile Inst.74, 382-384 (1983).
11.
For example, see Douthwaite, F.J., Lewis , D.M., and Schumacher-Hamedat , U., Reaction of Cystine Residues in Wool with Peroxy Compounds, Textile Res. J.63, 177-183 (1993).
12.
For example, see Gilbert, C., Kokot , S., and Meyer, U., Application of DRIFT Spectroscopy and Chemometrics for the Comparison of Cotton Fabrics, Appl. Spectrosc.47, 741 (1993).
13.
Green, D.B., Bapper, F., Williams, B.A., and Bromage, B., The Application of Computer-Assisted IR Spectroscopy to Some Analytical Problems in Wool Textiles, in "Proc. 5th Int. Wool Text. Res Conf, Aachen," vol. 5, 1975, pp. 501-512.
14.
Haaland, D. , and Thomas, E.V., Partial Least-Squares Methods for Spectral Analyses, 1: Relation to Other Quantitative Calibration Methods and the Extraction of Qualitative Information, Anal. Chem.60, 1193-1202 (1988).
15.
Haaland, D. , and Thomas, E.V., Partial Least-Squares Methods for Spectral Analyses, 2: Application to Simulated and Glass Spectral Data , Anal. Chem.60, 1202-1208 (1988 ).
16.
Hogg, L.J., Edwards, H.G.M., Farwell, D.W., and Peters, A.T., FT RamanSpectroscopy Studies of Wool, J. Soc. Dyers Colour . 110, 196-199 (1994).
17.
Identification of Textile Materials, 6th ed., J. E. Ford, G. Pearson, and R. M. Smith , Eds., The Textile Institute, Manchester , U.K., 1970.
18.
Kubelka, P. , and Munk, F., Reflection Characteristics of Paint, Z Tech. Phys.12, 598-601 (1931); errata ibid.13, 101 (1932).
19.
Maclaren, J.A. , and Milligan, B., "Wool Science: The Chemical Reactivity of the Wool Fibre," Science Press, Marrickville, Australia, 1981, pp. 1-17.
20.
Marler, J.W. , Quantitative Analysis of Wool/Synthetic Blends by Near Infrared Reflectance Spectroscopy, IWTO Report No. 9, Paris, January 1980.
21.
Morris, N.M. , A Comparison of Sampling Techniques for the Characterization of Cotton Textiles by Infrared Spectroscopy, Textile Chem. Color. 23, 19-22 (1991).
22.
Norris, K.H. , Food Research & Data Analysis, in "Proc. 1982 IUFST Symposium," H. Martens, Ed., Applied Science Publishers, Oslo, Norway 1983, pp. 95-113.
23.
Norris, K.H. , and Williams, P.C., Optimization of Mathematical Treatments of Raw Near-Infrared Signal in the Measurement of Protein in Hard Red Spring Wheat, I: Influence of Particle Size, Cereal Chem. ' 62, 158-165 (1984).
24.
Tincher, W.C. , and Luk, A., NIRS Analysis of Cotton/ Polyester Yarns , Textile Chem. Color. 17, 200-204 (1985).
25.
Tuckerman, R., The Analysis of Fabrics and Fibres by Diffuse Reflectance Infrared Spectrometry, Polym. Paint Colour J.178, 838-839 (1988).
