UNCERTAINTY IN MEASUREMENT: A KEY CRITERION FOR DEFINING THE COVERAGE FACTOR ASSOCIATED WITH THE MANUFACTURING PROCESS OF WOVEN FABRICS

Cristian S. Castillo, Maurício N. Frota, Ignácio Lira

Abstract

This study evaluates the <i>fractional coverage factor</i> (Cf_T) of a woven fabric before and after the manufacturing process is completed. The uncertainty associated with Cf_T was evaluated for specific conditions of mechanical strain of the thread yarns during the weaving process. The economic impact from undesirable geometric deviations of Cf_T is performed by making use of the <i>Taguchi’s Loss Function</i>. The proposed method proved to be effective to correlate the limits of acceptability of geometrical deviations with the <i>coverage factor</i> for a given tolerance of the manufacturing process, thereby reducing the degree of waste.

Keywords

fractional coverage factor, fabric manufacturing, uncertainty in measurement, economic impact, Taguchi’s Loss Function

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IMEKO-WC-2012-TC14-P5.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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