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

摘要

This study evaluates the fractional coverage factor (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 Taguchi's Loss Function. The proposed method proved to be effective to correlate the limits of acceptability of geometrical deviations with the coverage factor for a given tolerance of the manufacturing process, thereby reducing the degree of waste.