Frequency dependence of ultrasonic wool scouring

Li, Q., Hurren, C. J., Wang, L. J., Lin, T., Yu, H. X., Ding, C. L. and Wang, X. G. 2011, Frequency dependence of ultrasonic wool scouring, Journal of The Textile Institute, vol. 102, no. 6, pp. 505-513.

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Title Frequency dependence of ultrasonic wool scouring
Author(s) Li, Q.
Hurren, C. J.
Wang, L. J.
Lin, T.
Yu, H. X.
Ding, C. L.
Wang, X. G.
Journal name Journal of The Textile Institute
Volume number 102
Issue number 6
Start page 505
End page 513
Total pages 9
Publisher Taylor & Francis
Place of publication Manchester, England
Publication date 2011-06
ISSN 0040-5000
1754-2340
Keyword(s) ultrasound
frequency
wool
scouring
fibre properties
fibre science
Summary Conventional aqueous scouring of greasy wool promotes wool felting and can be energy and water intensive. Ultrasonic wool scouring could be an alternative technology to minimise the negative impact, provided that the cleaning efficiency and fibre quality are not compromised. This study  examined the influence of ultrasonic irradiation frequency and ultrasonic power variations on wool scouring performance at different liquor ratios. Scoured fibre, residual ash content, residual grease content, whiteness and yellowness were evaluated. The impact of liquor degassing on wool scouring effectiveness was studied. Fibre surface damage was also assessed in this work. It was observed that while there was no significant influence of ultrasonic frequency on the whiteness or yellowness of the scoured fibres, wool scoured at frequencies of 28 kHz and 80 kHz had more grease and dirt removed than that scoured at 45 kHz. Low ultrasonic power and degassed bath liquor increased wool grease removal ability. Ultrasonic treatment caused scale cracking/peeling in some wool fibres. More severe cuticle damage was observed in fibres scoured at the lower frequency. This damage resulted in increased dye uptake by the fibres.
Notes First published on 15 February 2011
Language eng
Field of Research 020301 Acoustics and Acoustical Devices; Waves
091012 Textile Technology
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30033645

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