A device which allows the azimuthal monitoring of reflected light is described. The results of measuring the azimuthal angles between maximum reflected light and one-half of maximum reflected light are given for nineteen varieties of cotton of the G. barbadense and G. hirsutum species. This angle is shown to be a function of the induced convolutions in cotton fibers. These measurements by a new technique are compared separately with x-ray and microscopic orientation results. Also, comparisons are made between zero-gage tenacity versus 40% x-ray angle and zero-gage tenacity versus 50% optical angle.
Betrabet, S.M. and Iyengar, R.L.N., Structural Properties of Cotton Fibers. Part III: Interspecies Relationships Between Convolution Angle and Strength , Textile Res. J. 34, 46-52, (1964).
2.
Duckett, K.E. and Tripp, V.W., X-Ray and Optical Orientation Measurements on Single Cotton Fibers, Textile Res. J . 37, 517-524 (1967).
3.
Hebert, J.J. , Giardina, D.M., and Rollins, M.L., The Effect of Convolutions on Orientation Measurements in Cotton Fibers , Textile Res. J . 40, 126-129 (1970).
4.
Lyons, W.J., Structure of Cellulose as Revealed by Optical and X-Ray Methods, The Scientific Monthly54 , 238-246 (1942).
5.
Meredith, R. , On the Techniques of Measuring Orientation in Cotton by X-Rays, J. Textile Inst . 42, T275-T290 ( 1951).
6.
Meredith, R. , Cotton Fibre Tensile Strength and X-Ray Orientation , J. Textile Inst. 42, T291-T299 ( 1951).
7.
Rebenfeld, L. and Virgin, W.P., Relation Between the X-Ray Angle of Cottons and Their Fiber Mechanical Properties, Textile Res. J . 27, 286-289 (1957).
8.
Rebenfeld, L., Final Report: A Detailed Study of Cotton Fiber Extensibility and Its Practical Significance, Research and Marketing Contract No. 12-14-100-984 (31) betweenTextile Research Institute and the U. S. Department of Agriculture, 1959.
