Clean Colour
Average Yellowness is an important characteristic of wool because it is related to dyeing performance and it is not necessarily related to the colour of Greasy Wool. Considerable quantities of wool are typed as H1 (Light unscourable Colour), H2 (Medium unscourable Colour) or H3 (Heavy unscourable Colour) based purely on visual assessment of the greasy wool and are discounted in the market.
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A number of independent research studies have shown that the colour of greasy wool is an extremely poor indicator of the clean colour of the same wool when it is scoured. The benefit of testing the average clean colour of greasy wool presale is that it provides predictability of the processing potential of the wool and reduces the likelihood of discounts been applied incorrectly. |
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