41—THE STRUCTURE OF FLAX FIBRE STRANDS

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Abstract
Investigations are described which demonstrate the presence of a succession of longitudinal fissures in strands of hackled retted flax fibre, attributable to a disruption of the binding materials between the ultimate fibres. When a tuft of fibre strands is cut into short segments, many of the strands break up into several smaller pieces, and the system of fissuring is characterised by the number–length curve. The experimental method of obtaining such a curve is described and the problem of sampling in order to obtain a representative curve is discussed. An equation is deduced from theoretical considerations, which expresses the results within the limits of experimental error. Curves have been fitted to the experimental results from four flaxes of widely different origin. Possible applications of the investigation are discussed.

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