期刊
COLOR RESEARCH AND APPLICATION
卷 39, 期 1, 页码 63-69出版社
WILEY
DOI: 10.1002/col.21764
关键词
reflectance; Kubelka-Munk; dye diffusion; reactive dyes; pad dyeing
Reactive dye fixation and color yield of a dyed cellulosic fiber significantly depend on the dye diffusion into the fiber polymer system. In case of pad-dyeing processes, dye diffusion exerts a more significant influence on dye fixation and hence color yield. This article proposes a new method for determining the extent of diffusion of reactive dyes into the fiber in pad dyeings using Kubelka-Munk equation. The K/S values are used as in an equation, %D (extent of dye diffusion) = 100 - [(K/S-diffusion index)/ (K/S-reference) x 100]. The article introduces and explains how to determine the new K/S variables used in this equation. The new method is simple, nondestructive, relatively faster, and applicable to industrial dyehouses, and was validated by a microscopic analysis of dyed fiber cross-section carried out in this work and to the dye manufacturer's recommendations for dyebath-ingredient concentrations. (c) 2012 Wiley Periodicals, Inc. Col Res Appl, 39, 63-69, 2014
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