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:
Nov. 06, 2012
Filed:
Apr. 11, 2008
Douglas B. Brown, Fremont, WI (US);
Jeffrey D. Stark, Neenah, WI (US);
Carmen A. Granato, Sr., Neenah, WI (US);
Duane K. Zacharias, Appleton, WI (US);
Douglas B. Brown, Fremont, WI (US);
Jeffrey D. Stark, Neenah, WI (US);
Carmen A. Granato, Sr., Neenah, WI (US);
Duane K. Zacharias, Appleton, WI (US);
Reifenhauser GmbH & Co. KG, Troisdorf, DE;
Abstract
A process is disclosed of forming cellulose fibers. The process includes extruding an aqueous solution of cellulose and a solvent through a first member to form filaments. The first member has multiple rows of first and second openings with a nozzle positioned in each of the first openings. At least one of the nozzles in one row is staggered from at least one of the nozzles in an adjacent row. At least a portion of each of the filaments is shrouded in a pressurized gas emitted through each of the first openings. Each of the filaments is contacted with a liquid to remove some of the solvent and transform each of the filaments into a continuous solid fiber. The continuous solid fibers are then collected on a moving surface to form a non-woven cellulose web.