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:
Sep. 10, 2013
Filed:
Apr. 17, 2009
Katsuhiko Ikeda, Hatsukaichi, JP;
Hiromasa Inada, Hatsukaichi, JP;
Katsuhiko Ikeda, Hatsukaichi, JP;
Hiromasa Inada, Hatsukaichi, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
Disclosed are a wet spinning apparatus and a wet spinning method, which enable to manufacture fibers with excellent quality by controlling the flow of a coagulation liquid in a spinning bath and which enable to cope with high speed spinning (or high speed drawing). A wet spinning apparatus () comprises a spinning bath (), at one end in which there are provided a nozzle () for discharging a spinning raw liquid and coagulation liquid discharge ports () and () for discharging a coagulation liquid (C), at the other end in which there are provided a drawing roll () for drawing coagulated filaments () and a coagulation liquid recovery portion () into which the coagulation liquid (C) flows out. The spinning bath () has a coagulation bath portion () having a cross sectional area gradually reduced from one end to the other end, for coagulating the spinning raw liquid, and a filament running portion () having a cross sectional area gradually enlarged from one end to the other end, for allowing the coagulated filaments () to run therein.