Luster Properties of Polyester Micro-fiber Circular-Knitted Fabric and Fiber Luster Simulation

Abstract

Textile scientists have regarded the material appearance of natural fibers, especially that of silk or woolfibers, as the benchmark for reinventing the look and feel of the long term, friendly companion ofmankind. The appearances or textures of the materials surrounding us in everyday life have long beeninteresting topics to many people.from scholars to painters. Even the simplest questions may requirecareful pondering. Why is the silk fabric so lustrous with subtlety? Recently, appearance models havebecome increasingly important in textile products. They are needed to model and simulate differentmodels. In this study, the optical characteristics of filament yarns and knitted fabrics were investigatedusing images taken at various angles and illumination conditions. Then the images were analyzed usingsome image analysis techniques, such as thresholding and measuring luster blobs. The anisotropic natureof the filamentous specimens was studied based on the images acquired at different incident illuminationand observing angles with several alignment positions of the fabric specimens. A few cylindrical modelswere generated using commercially available software, Rhinoceros, and then on the models, a ray-tracing algorithm based on a software, POV-Ray, was applied to simulate the appearance or lustrousimages of the monofilament models.