Theoretical study on the use of collars and outer wrapping to improve liquor flow in fabric beam dyeing

David Karst, W. Alex Rapp, Yiqi Yang

Research output: Contribution to journalArticle

3 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)354-358
Number of pages5
JournalColoration Technology
Issue number6
Publication statusPublished - Jan 1 2003


ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Chemical Engineering(all)
  • Materials Science (miscellaneous)

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