SOME MORPHOLOGICAL CHARACTERISTICS OF TEXTURED YARN: (PART V) MEASUREMENT OF THE FIBER DISTRIBUTION IN A TEXTURED YARN CROSS SECTION

In order to verify the relation of the two following functions, some observations on cross section of the yarn of the distributed fibers were made. The function (1) is obtained by the optical method previously proposed, and this function is correlated with the fiber distribution in each vertical division of a cross section. The function (2) is derived theoretically from the function (1), it means the fiber distribution located within a area of circular ring with Δr width, situated at distance r from the center in the cross section. The fiber distribution in each vertical division of the cross section showed normal distribution and conformity with the above function f (r), and the function p (r), with circular divisions of the cross section was also satisfied experimentally.