A method has been suggested to utilize the Digital Fibrograph to derive an optical fineness coefficient, which would correlate very well with gravimetric fiber-fineness measurements. Regression equations have been worked out to predict equivalent values of linear density from measurement of the optical fineness coellicient. A comparative study has also been made of the extent of association of the respective Micronaire values as well as values of the optical fineness co efficient with actual gravimetric fineness measurements.
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