The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2003
Filed:
Jul. 05, 2000
Alan John McKinnon, Christchurch, NZ;
John Robert McLaughlin, Canterbury, NZ;
Murray Edwin Taylor, Canterbury, NZ;
Douglas Alexander Rankin, Christchurch, NZ;
Paul Gregory Middlewood, Christchurch, NZ;
Phillipa Le Pine, Christchurch, NZ;
Paul Johannes Roy Mesman, Christchurch, NZ;
Stephen Barry Manson, Christchurch, NZ;
Wool Research Organisation of New Zealand, Inc., Canterbury, NZ;
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.