Authors: Karst D.¹; Rapp W.A.²; Yang Y.³

Source: Coloration Technology, Volume 119, Number 6, 2003 , pp. 354-358(5)

Publisher: Society of Dyers and Colourists

Abstract:

It is often difficult to obtain shade levelness in beam dyeing due to non-uniform liquor flow, owing to the fabric remaining stationary while dye liquor is pumped through it. The flow profile of liquor through the fabric affects how uniformly dye is applied to the fabric. In this study, computational fluid dynamics was applied to model liquor flow in the beam dyeing of highly permeable fabrics. It was found that there are areas of fabric that receive appreciably less liquor flow than others. When the outer layer of the fabric beam is wrapped with a less permeable material, liquor flow uniformity improves. The use of collars to block perforations in the beam covered by the edges of the fabric also improved liquor flow uniformity. Some data from this paper was presented at the Industrial Simulation Conference, Valencia, Spain (2003). Received: 19 June 2003; Accepted: 3 September 2003

Document Type: Regular paper

Affiliations: 1: Department of Textiles, Clothing and Design, University of Nebraska-Lincoln, 234 HE Bldg, Lincoln, Nebraska 68583-0802, USA 2: Institute of Textile Technology, North Carolina State University, College of Textiles, 2401 Research Drive, Raleigh, NC 27695-8301, USA 3: Department of Textiles, Clothing and Design, University of Nebraska-Lincoln, 234 HE Bldg, Lincoln, Nebraska 68583-0802, USA and Department of Biological Systems Engineering, University of Nebraska-Lincoln, 234 HE Bldg, Lincoln, Nebraska 68583-0802, USA. : yyang2@unl.edu

Publication date: 2003-01-01

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