Abstract
Difficulties in assessing the average fiber length in jute slivers are discussed. Some of the methods that are available for determining the average fiber length are examined and a simple and quick method is suggested. In the method proposed a beard is prepared by clamping the sliver at one point normal to its length and removing the loose fibers from both sides of the clamp. The weight profile of a beard prepared in this way is shown to be reasonably exponential, and hence a plot on semi-log scale will be a straight line. From the slope of the line the average fiber length can be calculated using the formula suggested. Instead of plotting the whole weight profile, the average fiber length can also be calculated from the weights of two 2-in. pieces of the beard cut at two points of the beard, and this cutting method gives values of avenge fiber length that are in good agreement with values obtained from the slope of the log-linear plot. The cutting method proposed is a quick one and appears to be reliable.
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