A comparative study of the colour of Bulgarian and imported Merino wool
2008
Pamukova, D., Thracian University, Stara Zagora (Bulgaria) | Takuchev, N., Thracian University, Stara Zagora (Bulgaria)
The aim of this study was to compare the colours of Bulgarian and imported merino wool. Samples from merino wool batches originating from Bulgaria, Russia and Australia were used. The percentage of contaminated areas was determined after the measurement of the natural wool length and its contamination in depth. The colour of the grease wool was evaluated by sight. The samples of the side were divided into two groups: whole wool staples and separated contaminated wool areas. After washing and homogenization, the samples of both groups were colourimetrically evaluated. The reflection spectra were obtained by means of a spectrophotometer SPEKOL 11 with a reflection device type Rd/0 and the colour indices of the clean wool were determined. In both groups, the colour index of the Australian wool was the lowest (it had the highest whiteness) – 20.63 and 19.93, and the highest index was exhibited by the Russian wool (27.87 and 23.25). The Bulgarian merino wool showed intermediate values of 24.77 and 21.01. The effect of contaminated area on the clean wool colour was more noticeable in the Russian and Bulgarian merino wools than in the Australian one.
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