Method for significantly enhancing the quality of scoured wool and machinery for achieving those enhancements
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United States of America Patent
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Mar 25, 2003
Grant Date -
N/A
app pub date -
Jul 5, 2000
filing date -
Sep 26, 1997
priority date (Note) -
Expired
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Abstract
A wool or the like fiber scour including at least one of the following, (a) scouring process wherein the fiber is subjected to an acid extraction process to remove absorbed iron, and by to greatly improve the brightness (Y tristimulus value) of the wool; (b) a scouring process wherein a bleaching process is carried out part way through the wet process following by dying, rewriting and chemical reduction, therefore stabilising the bleached color to prevent subsequent reversion in the dyebath; or (c) a scouring process wherein scoured clean fiber is dried and dusted, and then reimmersed in liquors containing detergents and dispersants, thereby effectively removing extra amounts of residual dirt. The scour produces an improved quality of fibres.
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