Variability of Fiber-Length Parameters

Abstract

The variability of fiber-length parameters obtained from the Baer Sorter and the Digital Fibrograph has been estimated. It has been found that the two methods have the same order of variability. The need for considering Type II errors, while detecting small changes in fibei lengths, has been brought out. Readily usable tables for choosing the ccrrect sample size have been given.

Keywords

Fiber length short Fibers. Baer sorter Digital Fibrograph. Variability Type I error Type II error.

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References

Audivert, R. and De Castellar , Maria , The Variation of Fiber Length Parameters from the Digital Fibrograph, Textile Res. J. 41, 278-279 (1971).

Lord, E. , 'I'he Characteristics of Raw Cotton in "The Manual of Cotton Spinning," Vol. II, Part I, Eds. Coulson, A. P. W. and Tordoff, M. , Manchester and London, The Textile Institute & Butterworths, 52 53, 1961.

Venugopalan, V. , Iyengar, R.L.N. , and Munshi , V.G. , A Critical Assessment of Various Methods of Fiher Length Measurements of Cotton, J. Textile Ass. 33, 31-44 (1972).