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Title: Yarn strength behaviour at different gauge lengths
Authors: Das, Dipayan
Neckar, Bohuslav
Keywords: Autocorrelation function;Cotton;Gauge length;Stochastic process;Theoretical model
Issue Date: Dec-2005
Publisher: NISCAIR-CSIR, India
IPC Code: Int. CI.7D02G3/00
Abstract: A theoretical model has been developed for predicting yarn strength at different gauge lengths as a summation of two mutually independent stationary, ergodic, Markovian and Gaussian stochastic processes and then experimentally verified with different cotton yarns produced from different spinning technologies. A new methodology to measure yarn strength at a gauge length longer than that of the longest fibre in yarn has been devised and special data evaluation techniques developed. With this, it is possible to obtain a new characterization of yarn strength as well as to predict actual yarn strength behavior at different gauge lengths. It is experimentally observed that the strengths of neighbouring short sections along a yarn are correlated and this correlation is different in different yarns. Depending on the degree of this correlation, the empirical equations relating yarn strength and gauge length are found to be different in different yarns.
Page(s): 414-420
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.30(4) [December 2005]

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