Effects of plasma treatment of wool on the uptake of sulfonated dyes with different hydrophobic properties

Naebe, Maryam, Cookson, Peter, Rippon, John, Brady, Rex Peter and Wang, Xungai 2010, Effects of plasma treatment of wool on the uptake of sulfonated dyes with different hydrophobic properties, Textile research journal, vol. 80, no. 4, pp. 312-324, doi: 10.1177/0040517509338308.

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Title Effects of plasma treatment of wool on the uptake of sulfonated dyes with different hydrophobic properties
Author(s) Naebe, MaryamORCID iD for Naebe, Maryam orcid.org/0000-0002-5266-9246
Cookson, Peter
Rippon, John
Brady, Rex Peter
Wang, XungaiORCID iD for Wang, Xungai orcid.org/0000-0002-3549-6769
Journal name Textile research journal
Volume number 80
Issue number 4
Start page 312
End page 324
Total pages 13
Publisher Sage Publications
Place of publication London, England
Publication date 2010-03
ISSN 0040-5175
Keyword(s) plasma treatment
surface modification
Summary A wool fabric has been subjected to an atmospheric-pressure treatment with a helium plasma for 30 seconds. X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry confirmed removal of the covalently-bound fatty acid layer (F-layer) from the surface of the wool fibers, resulting in exposure of the underlying, hydrophilic protein material. Dye uptake experiments were carried out at 50 ºC to evaluate the effects of plasma on the rate of dye uptake by the fiber surface, as well as give an indication of the adsorption characteristics in the early stages of a typical dyeing cycle. The dyes used were typical, sulfonated wool dyes with a range of hydrophobic characteristics, as determined by their partitioning behavior between water and n-butanol. No significant effects of plasma on the rate of dye adsorption were observed with relatively hydrophobic dyes. In contrast, the relatively hydrophilic dyes were adsorbed more rapidly (and uniformly) by the plasma-treated fabric. It was concluded that adsorption of hydrophobic dyes on plasma-treated wool was influenced by hydrophobic interactions, whereas electrostatic effects predominated for dyes of more hydrophilic character. On heating the dyebath to 90 ºC in order to achieve fiber penetration, no significant effect of the plasma treatment on the extent of uptake or levelness of a relatively hydrophilic dye was observed as equilibrium conditions were approached.
Language eng
DOI 10.1177/0040517509338308
Field of Research 091012 Textile Technology
Socio Economic Objective 869999 Manufacturing not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, Sage Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30021482

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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