Theoretical study of the influence of dispersion factor on dye transport during the dyeing process

doi:10.1111/j.1478-4408.2006.00013.x

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Wiley InterScience

Coloration Technology

Volume 122 Issue 2, Pages 110 - 114

Published Online: 27 Mar 2006

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Published on behalf of the Society of Dyers and Colourists

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Theoretical study of the influence of dispersion factor on dye transport during the dyeing process

X Zhao ^a,*, R H Wardman ^a and R Shamey ^b

^a School of Textiles and Design, Heriot-Watt University, Scottish Borders Campus, Galashiels, Scotland TD1 3HF, UK
^b Textile Engineering, Chemistry & Science Department, College of Textiles, North Carolina State University, Raleigh, NC 27695-8301, USA

Correspondence to * Email: x.zhao@hw.ac.uk

ABSTRACT

During dyeing, dispersive flow is assumed to reduce the concentration gradient of dye liquor flowing through a yarn package, resulting in a more even distribution of dye in the liquor within the package. However, little is known about the degree of significance of dispersive transport, as a proportion of the total transport of dye. This study investigates the influence of dispersion on dye transport during dyeing, based on a finite element method approach utilised in a mathematical model. The model has been applied to establish the influence of several parameters during the course of the dyeing process. This study theoretically discusses the role of dispersion on the rate of dyeing and the uniformity of dye distribution.

Received: 24 October 2005; Accepted: 27 January 2006

DIGITAL OBJECT IDENTIFIER (DOI)

10.1111/j.1478-4408.2006.00013.x About DOI