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Cotton Tenacity Measurements with High Speed Instruments

USDA, ARS, Cotton Quality Research Station, Clemson, South Carolina 29631, U.S.A.

Measuring fiber strength in cotton encompasses sampling, fiber preparation, and bundle clamping. The precision of the measurement is a function of these steps as well as the precision of measuring the force and mass of each bundle under test. A detailed analysis of each step in the tenacity testing sequence is presented here. Com parisons between newly developed high volume instruments and conventional methods (Pressley and Stelometer) show that the conventional methods are biased toward the long, strong fibers in a cotton, whereas the high speed instruments use less accurate, indirect methods to measure bundle mass and produce a force measurement that is confounded by differences in fiber crimp.

Textile Research Journal, Vol. 56, No. 2, 92-101 (1986)
DOI: 10.1177/004051758605600204


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