Measurement of Cotton Fiber Strength by the Flat Taped Bundle Method

Abstract

The flat taped bundle test as applied to the measurement of the strength of cotton fibers has been modified during the course of several years. The method has proved satisfactory for both routine and research purposes. The techniques and apparatus are described in detail. Some causes of error and factors other than the fiber strength which introduce variations in test results have been investigated and are discussed. The effects of varying bundle width and weight) direction of fibers, jaw pressure and separation, humidity, and type of tape used have been studied. The observed precision of test results and their statistical reliability are presented. A calibration method is described which greatly reduces the effects of several operators.