Interrelations of Structural and Physical Properties of Untreated Cottons

High correlation is shown to exist between crystallite orientation and tensile proper ties of bundles of cotton fibers. Statistical analyses of bundle data failed to uncover pronounced dependence of bundle tensile properties on reversal frequency. Evidence is given of the influence of heredity on reversal frequency. Data on single cotton fibers are presented to illustrate the relationships or lack of relationships of reversals and x-ray angle to strength and elongation. X-ray angle and reversal frequency are interrelated at a very low level of significance and are shown to be related to single-fiber tenacity, elongation, and decrease in strength with increase in gage length. The tensile properties from bundle and single-fiber measurements are more strongly related to x-ray orientation than to reversal frequency.