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Stevens Point, NC, United States

Gunay M.,HueMetrix Inc. | Jasper W.J.,North Carolina State University
Coloration Technology

There are practical limitations in predicting dyebath concentrations and dyebath exhaustion using absorbance measurements from optical spectroscopy. The purpose of this paper is to examine the common assumptions of prediction models that cause prediction errors, and especially when multiple dye combinations are used. If a linear model is used to map absorbance to concentration, then five assumptions must hold: measurement repeatability, linear scaling, spectral additivity, linear independence of the constituent spectra and the absence of spectral morphing. Violation of one or more of these assumptions will lead to errors in predicting the concentrations of dyes in a dyebath and subsequent exhaustion calculations. © 2010 The Authors. Journal compilation © 2010 Society of Dyers and Colourists. Source

Gunay M.,HueMetrix Inc. | Farrell M.,HueMetrix Inc. | Dixon W.,HueMetrix Inc. | Smith B.,HueMetrix Inc. | Jasper W.J.,HueMetrix Inc.
AATCC Review

Fiber properties affect textile dyeability. The objective of this paper is to understand how certain fiber properties affect textile dyeability and demonstrate how a real-time dye monitoring system may practically be used by fiber manufacturers and dyers to analyze fiber properties for quality improvement purposes and new fiber development. Source

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