Photometry and Characterization on Brightness Sensation of Dyed Black Color Fabric for Objective Assessment of Fabric Appearance

Abstract

Property of fabric appearance such as elegant, high-class, beautiful is required on producing dyed black color fabric for formal wear. From our previous study, the hierarchical model representing the quality check process of fabric appearance was proposed through evaluation of dyed black color fabrics by non-experts on textiles. And it was found that the evaluation of fabric appearance is strongly governed by that of macroscopic or microscopic brightness sensation. Hence, this study aimed to predict the score of the macroscopic or the microscopic brightness sensation by optical measurement and its characterization of dyed black color fabric. The spatial reflection curve on 12 kind of sample was measured with original gonio-photometric system. And several parameters (e.g. TI, S, and I) indicating the character of the spatial reflection curve was defined. Then the score of the macroscopic or the microscopic brightness sensation was predicted by equations which denoted with some of above parameters. Through these investigation, the methodology of photometry and characterization on brightness sensation of dyed black color fabric for objective assessment of fabric appearance was proposed.