Prediction of the Reflectance of Wet Nylon Fabric Using the Geometric Model and Kubelka-Munk theory

Articles in Press

Document Type : Original Article

Authors

1 Department of Textile Engineering, Faculty of Engineering, University of Guilan

2 Department of Textile Engineering, University of Guilan, Rasht, Iran

10.30509/jcst.2025.167444.1249

Abstract

In this article, the reflective spectra of wet nylon fabric were predicted using a geometrical model based on its dry-state reflective spectra. For this purpose, nylon fabric samples were dyed individually and in mixtures with red, blue, and yellow acid dyes. Analysis of the color parameters of the samples shows that wetting causes color change, a decrease in lightness, and increases in color depth of the dyed fabric. To predict the fabric's reflectance in the wet state using the geometrical model, the molar absorption coefficient of the dye (ɛ), modified molar absorption coefficient (ɛ), unit k/s, and modified unit k/s values were utilized. The prediction error according to color difference (ΔECMC) in four prediction methods, using molar absorption coefficient (ɛ), modified molar absorption coefficient (ɛ), unit k/s, and modified unit k/s, were 18.69, 15.51, 6.87, and 5.71, respectively. Based on the obtained results, the best prediction was achieved by the geometrical model using the modified unit k/s.

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Journal of Color Science and Technology

Articles in Press, Accepted Manuscript
Available Online from 16 April 2025

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