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Theoretical study on the use of collars and outer wrapping to improve liquor flow in fabric beam dyeing
Author(s) -
Karst David,
Rapp W Alex,
Yang Yiqi
Publication year - 2003
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2003.tb00197.x
Subject(s) - dyeing , beam (structure) , flow (mathematics) , materials science , composite material , layer (electronics) , pulp and paper industry , engineering , structural engineering , mechanics , physics
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).