This paper reports the results obtained in a study of the frictional behaviour of root-tip-aligned fibre fringes under different levels of normal load. Experiments on eight cottons revealed that the coefficient of friction between the root parts was higher than that between tip parts. This difference in friction was significant at lower normal loads. The probable reasons for this behaviour are discussed in terms of area of contact and distribution of convolution angle and moisture content along the length of the fibre.
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K. Seshan (1978) studied this question.
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