JPS54131026A - Production of hollow cellulose acetate fibers - Google Patents
Production of hollow cellulose acetate fibersInfo
- Publication number
- JPS54131026A JPS54131026A JP3891078A JP3891078A JPS54131026A JP S54131026 A JPS54131026 A JP S54131026A JP 3891078 A JP3891078 A JP 3891078A JP 3891078 A JP3891078 A JP 3891078A JP S54131026 A JPS54131026 A JP S54131026A
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- cellulose acetate
- permeability
- ester
- spinneret
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
PURPOSE: To obtain the title hollow fibers having improved selective permeability and water permeability as hollow fiber membranes, and a high tensile strength in use, by using a liquid consisting mainly of an ester of a fatty acid as a core material in wet spinning.
CONSTITUTION: A solution of cellulose acetate having an acetyl value of 45W60% in an organic solvent is extruded from an annular slit of an outer pipe of a double- pipe spinneret, and a liquid consisting mainly of an ester of a fatty acid is fed from the inner pipe of the spinneret as a core material. The coagulating solution is preferably an aqueous solution comprising 5W60 wt.% of a solvent for the acetate. The resulting fibers are washed with hot water to give hollow fibers having a suitable permeability usable for ultrafiltration, uniform and thin walls, and a high separation efficiency free from collapsed hollow parts, with high productivity.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3891078A JPS54131026A (en) | 1978-04-03 | 1978-04-03 | Production of hollow cellulose acetate fibers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3891078A JPS54131026A (en) | 1978-04-03 | 1978-04-03 | Production of hollow cellulose acetate fibers |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54131026A true JPS54131026A (en) | 1979-10-11 |
Family
ID=12538346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3891078A Pending JPS54131026A (en) | 1978-04-03 | 1978-04-03 | Production of hollow cellulose acetate fibers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54131026A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58163724A (en) * | 1982-03-24 | 1983-09-28 | Nok Corp | Hollow fiber filled with latent heat-storing agent |
JPS61185305A (en) * | 1985-02-13 | 1986-08-19 | Daicel Chem Ind Ltd | Preparation of cellulose acetate hollow yarn |
JP2011509174A (en) * | 2008-01-03 | 2011-03-24 | フレゼニウス メディカル ケアー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Hollow fiber membrane, method for producing the same, and use thereof |
-
1978
- 1978-04-03 JP JP3891078A patent/JPS54131026A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58163724A (en) * | 1982-03-24 | 1983-09-28 | Nok Corp | Hollow fiber filled with latent heat-storing agent |
JPS61185305A (en) * | 1985-02-13 | 1986-08-19 | Daicel Chem Ind Ltd | Preparation of cellulose acetate hollow yarn |
JPH0566169B2 (en) * | 1985-02-13 | 1993-09-21 | Daicel Chem | |
JP2011509174A (en) * | 2008-01-03 | 2011-03-24 | フレゼニウス メディカル ケアー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Hollow fiber membrane, method for producing the same, and use thereof |
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