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Experimental study of back‐scattering spectrum of textile structures

Experimental study of back‐scattering spectrum of textile structures The back‐scattered light by textile surfaces mainly depends on their surface state, which is often periodic and directional. The analysis of the reflectance spectra in back‐scattering conditions of two types of structures (yarn, plain and twill weaves) shows the influence of the orientation of these surfaces as well as the back‐scattered angle. In fact, the declination of the yarn orientation in relation to the incidence plane involves an increase of the reflectance factor to reach a maximum value when the yarns are perpendicular to this plane. For woven fabrics, the back‐scattering of surface according to a given orientation primarily depends on its geometrical characteristic in this direction and consequently the used yarn densities. The computation of the ratio of mean quadratic surface roughness h to correlation length l for various used orientations shows the close link between this parameter and the evolution of back‐scattering. The effect of the variation of back‐scattered angle on the back‐scattered light varies with the value of h/l. The comparison between these experimental results and a theoretical study based on Gaussian and isotropic surfaces shows a satisfactory correlation between these two elements with the presence of some cases of discrepancy due to the different natures of the two types of surfaces. © 2006 Wiley Periodicals, Inc. Col Res Appl, 31, 122–132, 2006 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Color Research & Application Wiley

Experimental study of back‐scattering spectrum of textile structures

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References (5)

Publisher
Wiley
Copyright
Copyright © 2006 Wiley Periodicals, Inc.
ISSN
0361-2317
eISSN
1520-6378
DOI
10.1002/col.20191
Publisher site
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Abstract

The back‐scattered light by textile surfaces mainly depends on their surface state, which is often periodic and directional. The analysis of the reflectance spectra in back‐scattering conditions of two types of structures (yarn, plain and twill weaves) shows the influence of the orientation of these surfaces as well as the back‐scattered angle. In fact, the declination of the yarn orientation in relation to the incidence plane involves an increase of the reflectance factor to reach a maximum value when the yarns are perpendicular to this plane. For woven fabrics, the back‐scattering of surface according to a given orientation primarily depends on its geometrical characteristic in this direction and consequently the used yarn densities. The computation of the ratio of mean quadratic surface roughness h to correlation length l for various used orientations shows the close link between this parameter and the evolution of back‐scattering. The effect of the variation of back‐scattered angle on the back‐scattered light varies with the value of h/l. The comparison between these experimental results and a theoretical study based on Gaussian and isotropic surfaces shows a satisfactory correlation between these two elements with the presence of some cases of discrepancy due to the different natures of the two types of surfaces. © 2006 Wiley Periodicals, Inc. Col Res Appl, 31, 122–132, 2006

Journal

Color Research & Application – Wiley

Published: Apr 1, 2006

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