Application of Internal Reflection Spectroscopy to the Quantitative Analysis of Mixed Fibers

  • Paul A. WilksJr.
  • John W. Cassels
Part of the Developments in Applied Spectroscopy book series (DAIS, volume 7b)


Internal-reflectance spectroscopy has proved to be an excellent method for the qualitative identification of fibers both in the raw state and in fabrics. In the present study the technique has been applied to the recording of infrared spectra of a number of fabrics woven from two or more types of fibers. Infrared spectra can be obtained directly from the fabric with no special treatment. A number of factors affect quantitative accuracy. With careful control of these factors spectra of quantitative value can be obtained on many mixed fabrics. Special techniques have been developed aimed at maximizing the quantitative accuracy.


Quantitative Accuracy Qualitative Identification Mixed Fabric Transmission Spectroscopy Silver Bromide 
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  1. 1.
    P. A. Wilks, Jr. and T. Hirschfeld, App. Spectry. Rev. 1 (1), 99–130 (1967).CrossRefGoogle Scholar
  2. 2.
    P. A. Wilks, Jr. and M. R. Iszard, The Identification of Fibers and Fabrics by Internal Reflection Spectroscopy, Paper presented at 15 th Mid-America Spectroscopy Symposium, Chicago, Illinois, June 2–5, 1964. (Copies available from Wilks Scientific Corporation.)Google Scholar
  3. 3.
    P. A. Wilks, Jr., J. Appl. Spectry. 22 (6), 782–784 (1968).CrossRefGoogle Scholar

Copyright information

© Chicago Section of the Society for Applied Spectroscopy 1970

Authors and Affiliations

  • Paul A. WilksJr.
    • 1
  • John W. Cassels
    • 1
  1. 1.Wilks Scientific Corp.South NorwalkUSA

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