The Detection of Cotton Fiber Convolutions by the Reflection of Light

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.