Conclusions
The relaxation character of the change in sound propagation velocity in man-made fibres during the stretching process has been confirmed.
A relationship has been proposed which describes the change in sound velocity as a result of two competing processes: disorientation and orientation at low and large degrees of stretch, respectively.
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Literature cited
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Additional information
Translated from Khimicheskie Volokna, No. 4, pp. 18–19, July–August, 1985.
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Molotkov, A.P., Glukhov, V.A. & Zelenev, Y.V. Change in the acoustical characteristics of man-made fibres during the spinning process. Fibre Chem 17, 252–253 (1986). https://doi.org/10.1007/BF00545641
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DOI: https://doi.org/10.1007/BF00545641