In a previous paper5describing an X-ray method for quantitative comparison of crystalline orientation in cellulose fibres, data were presented which suggested a relationship between orientation and the tensile strength of three commercial samples of cotton cord. Through informal co-operation with Dr. C. M. Conrad2, it was possible to further establish this relationship on ten specially selected samples of raw cotton varying widely in tensile strength.3 A brief summary of the results, and a detailed description of the technique employed in obtaining the results are given in the present paper.
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References
1.
Berkley, E.E.Analysis of X-ray diffraction patterns of raw cotton fibre with a new photoelectric densitometer. Paper presented before Division of Cellulose Chemistry, at the 93rd Meeting of the American Chemical Society, Chapel Hill, N. C., April 12-15 (1937).
2.
Conrad, C.M.Chemical and physical deterioration in relation to the quality of raw cotton . Paper presented before the Division of Cellulose Chemistry at the 92nd Meeting of the American Chemical Society, Pittsburgh, Pa., Sept 7-11 (1936).
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Morey, D.R.The relation of orientation to physical properties of cottons and rayons. Tex. Rsch., 5, 483 (1935).
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Richardson, H.B., T.W.L. Bailey, Jr., and C.M. Conrad.Methods for the measurement of certain character properties of raw cotton. U. S. D. A. Tech. Bull. No. 545, 77 pp. (1937).
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Sisson, Wayne A., and George L. Clark.X-ray method for quantitative comparison of crystallite orientation in cellulose fibres. Ind. and Eng. Chem., Analytical Ed.5, 296 (1933).
