Measuring colour and photostability of small fleece wool samples

Millington, K. R. and King, A. L. 2010, Measuring colour and photostability of small fleece wool samples, Animal production science, vol. 50, no. 5-6, pp. 589-592.

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Title Measuring colour and photostability of small fleece wool samples
Author(s) Millington, K. R.
King, A. L.
Journal name Animal production science
Volume number 50
Issue number 5-6
Start page 589
End page 592
Total pages 4
Publisher CSIRO Publishing
Place of publication Collingwood, VIC
Publication date 2010
ISSN 1836-0939
1836-5787
Summary A convenient method for measuring the clean colour (Y and Y-Z) and photostability Δ(Y-Z) of small samples of fleece wool (0.5 g) is described. Scoured wool samples are compressed to a constant density in disposable polymethyl methacrylate spectrophotometer cells and the wool colour is measured using a standard textile laboratory reflectance spectrophotometer. Packing scoured wool into cells ensures that the irradiated fibre surface is robust and individual fibres are unable to move relative to one another during irradiation and measurement. A UVB (280–320 nm) source was used to ensure all samples regardless of initial yellowness were yellowed following exposure and photobleaching was avoided. An apparatus capable of irradiating up to 48 scoured wool samples in one batch is described. The precision of photostability measurements was assessed and the relative error in Δ(Y-Z) was 5.7%. An initial study on 75 fleece wool samples with a high range of initial yellowness showed a moderate linear correlation (R2 = 0.68) between initial yellowness and Δ(Y-Z).
Language eng
Field of Research 091012 Textile Technology
Socio Economic Objective 830311 Sheep - Wool
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2010, CSIRO
Persistent URL http://hdl.handle.net/10536/DRO/DU:30035283

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