JPS5442419A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS5442419A JPS5442419A JP10901277A JP10901277A JPS5442419A JP S5442419 A JPS5442419 A JP S5442419A JP 10901277 A JP10901277 A JP 10901277A JP 10901277 A JP10901277 A JP 10901277A JP S5442419 A JPS5442419 A JP S5442419A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- core
- fibers
- water
- hollow fibers
- 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: A cellulose ester solution is extruded from ring slits and simultaneouly a specific material is introduced as a core liquid, thereby producing hollow fibers with uniform and thin wall thickness and highly selective permeability by stable and high-speed operations.
CONSTITUTION: In the production of hollow fibers, formamide or a liquid mainly comprising the same is used as core a liquid and introudced into the core part of hollow fibers which are made by extruding the spinning dope from the spinneret. During coagulation, the coagulation liquid such as water permeates from the surface of fibers into the core part and mixes with the core liquid. So, the formamide is diluted and loses the capability of dissolving the cellulose ester. Subsequently the fibers are washed with water and the core liquid is replaced with water.
USE: Used in medical treatment and food industry.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10901277A JPS5442419A (en) | 1977-09-09 | 1977-09-09 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10901277A JPS5442419A (en) | 1977-09-09 | 1977-09-09 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5442419A true JPS5442419A (en) | 1979-04-04 |
Family
ID=14499324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10901277A Pending JPS5442419A (en) | 1977-09-09 | 1977-09-09 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5442419A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120751U (en) * | 1983-01-29 | 1984-08-14 | 津田駒工業株式会社 | Loom cloth winding device |
JPS6053750U (en) * | 1983-09-19 | 1985-04-16 | ダスキンフランチヤイズ株式会社 | Long strip automatic winder |
CN106400144A (en) * | 2016-10-11 | 2017-02-15 | 上海湛信科技发展有限公司 | Novel hollow fibrous membrane spinneret |
-
1977
- 1977-09-09 JP JP10901277A patent/JPS5442419A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59120751U (en) * | 1983-01-29 | 1984-08-14 | 津田駒工業株式会社 | Loom cloth winding device |
JPS641314Y2 (en) * | 1983-01-29 | 1989-01-12 | ||
JPS6053750U (en) * | 1983-09-19 | 1985-04-16 | ダスキンフランチヤイズ株式会社 | Long strip automatic winder |
CN106400144A (en) * | 2016-10-11 | 2017-02-15 | 上海湛信科技发展有限公司 | Novel hollow fibrous membrane spinneret |
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