A Goniophotometric Study of the Iridescent Effect in Tamamushi Fabrics

Abstract

This paper discusses the optical properties of the so-called Tamamu3 i Fabrics (iridescent fabrics) measured with a goniophotometer.The results obtained are:(1) The factors governing the optical properties of Tamamushi fabrics are considered to be the surface structure of the fabrics, fabric construction, gloss and combination of the colors of warp ends and filling yarns.(2) In order to analyse their optical properties, the reflected light from Tamamushi fabrics should be separated into the specular and the diffuse components.(3) The optical properties of warp ends and filling yarns have an important bearing on the iridescence of Tamamushi fabrics.(4) The color change of Tamamushi fabrics should be discussed from the goniophotometric reflection curves obtained under a monochromatic light resembling the warp ends and filling yarns in color.(5) The larger the hue difference between the warp ends and filling yarns, the larger the change of color on the chromatic diagram.

Visible Light Shielding Performance of Fabrics with Non-Circular Cross Section Fiber

“…The shielding fabrics were developed by [27][28][29][30][31] adjusting the weaving process, developing multi-layer or double-layer fabrics, coating the surface of fabrics, or improving pigment printing technology. Several studies were focused on the reflection goniophotometric curves of woven http://www.jeffjournal.org Volume 7, Issue 3 -2012 fabrics [32][33][34][35]. Tsuneyo, et al [32], studied the goniophotometric curves of the monochromatic specular and diffuse light to evaluate the optical properties and color change of fabrics, which was suitable for fabrics made of conventional circular fibers.…”

“…Several studies were focused on the reflection goniophotometric curves of woven http://www.jeffjournal.org Volume 7, Issue 3 -2012 fabrics [32][33][34][35]. Tsuneyo, et al [32], studied the goniophotometric curves of the monochromatic specular and diffuse light to evaluate the optical properties and color change of fabrics, which was suitable for fabrics made of conventional circular fibers. Nobuo, et al [33,34], developed two models on entire cross section of a yarn and simulated the goniophotometric curves in a refractive index range [35] from 1.3 to 1.8.…”