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The use of reflectance measurements in the determination of fixation of reactive dyes to cotton
Author(s) -
Ahmed N.,
Oulton D. P.,
Taylor J. A.
Publication year - 2006
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.20189
Subject(s) - opacity , reflectivity , wavelength , linear relationship , materials science , fixation (population genetics) , linear correlation , reactive dye , optics , biological system , analytical chemistry (journal) , chemistry , mathematics , composite material , chromatography , optoelectronics , statistics , dyeing , physics , biochemistry , biology , gene
The utility of the Kubelka–Munk equation for determining the fixation of reactive dyes to cotton has been assessed. Large K / S values are not linearly related to dye concentration on fabric and thus give an inaccurate assessment of fixed dye. If lower values of K / S are selected, by measuring at a suitable wavelength, a linear relationship exists with the concentration of dye present, even at very heavy depths of shade. Thus, by judicious choice of wavelength, K / S values can provide an accurate and convenient method for the assessment of dye on fabric, provided that a reference fabric sample, with a known concentration of the same dye, is available as a standard for comparison. Significant implications are then revealed for construction scalable models of opaque medium reflectance that are homogeneously linear over wavelength with respect to colorant concentration change. © 2006 Wiley Periodicals, Inc. Col Res Appl, 31, 117–121, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20189