Effects of Fabric Parameters on Specular Reflection of Single-Jersey Knitted Fabrics

Abstract

This paper is concerned with the prediction of goniophotometric curves (distribution curves of specularly reflected light) based on our mathematical model developed earlier for single-jersey knitted fabrics made from monofilament yarns. The theory is extended to include fabrics from multifilament yarns. Four physical and optical parameters related to the fabric and the light source are investigated: fiber refractive index, yarn cross section, incident light angle, and fiber ellipticity. Their effects on the goniophotometric curves and luster index of knitted fabrics are determined. In addition, the great difference is high lighted between light reflected from knitted fabrics and light received by the goniopho tometer.

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