JPS5528741A - Forming method of polyvinyl alcohol hollow yarn film - Google Patents
Forming method of polyvinyl alcohol hollow yarn filmInfo
- Publication number
- JPS5528741A JPS5528741A JP10198478A JP10198478A JPS5528741A JP S5528741 A JPS5528741 A JP S5528741A JP 10198478 A JP10198478 A JP 10198478A JP 10198478 A JP10198478 A JP 10198478A JP S5528741 A JPS5528741 A JP S5528741A
- Authority
- JP
- Japan
- Prior art keywords
- pva
- hollow yarn
- yarn film
- cured
- film
- 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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: To enable arbitrary selection of the heat treating conditions depending on the kind of hollow yarn, purpose, and application.
CONSTITUTION: A flexible PVA hollow yarn film is formed into a specified shape and is cured by heat treatment. Simultaneously solidifying this shape, a PVA hollow yarn film is formed. This method may be effectively used in applications to fit a hollow yarn film in a tubular body in U form, e.g. when manufacturing ultrafiltration unit or precision filtration apparatus. In embodiment, PVA having degree of saponification of 98.5% and degree of polymerization of 2400 and polyethylene glycol (PEG) having molecular weight of 1000 are blended by 95% with respect to PVA, and is heated and dissolved at 100°C, and aqueous solution of uniform 16% concentration of PVA is prepared. This spinning raw solution is passed through ring nozzle and is spun out in solidification bath of NaOH/Na2SO4=80/230g/l to obtain hollow fiber (HF). This HF is cured in treatment solution to obtain dry HF. Thus, heat treating conditions may be arbitrarily selected depending on the purpose and application.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10198478A JPS5528741A (en) | 1978-08-21 | 1978-08-21 | Forming method of polyvinyl alcohol hollow yarn film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10198478A JPS5528741A (en) | 1978-08-21 | 1978-08-21 | Forming method of polyvinyl alcohol hollow yarn film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5528741A true JPS5528741A (en) | 1980-02-29 |
Family
ID=14315101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10198478A Pending JPS5528741A (en) | 1978-08-21 | 1978-08-21 | Forming method of polyvinyl alcohol hollow yarn film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5528741A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02210219A (en) * | 1988-10-18 | 1990-08-21 | Nippondenso Co Ltd | Display board |
WO2017086997A1 (en) * | 2015-11-20 | 2017-05-26 | General Electric Company | A polyvinyl alcohol porous support and method |
JPWO2016208625A1 (en) * | 2015-06-25 | 2018-04-05 | 株式会社クラレ | Easily fibrillated polyvinyl alcohol fiber and method for producing the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221420A (en) * | 1975-08-12 | 1977-02-18 | Kuraray Co Ltd | Process for producing hollow polyvinyl alcohol fibers |
-
1978
- 1978-08-21 JP JP10198478A patent/JPS5528741A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221420A (en) * | 1975-08-12 | 1977-02-18 | Kuraray Co Ltd | Process for producing hollow polyvinyl alcohol fibers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02210219A (en) * | 1988-10-18 | 1990-08-21 | Nippondenso Co Ltd | Display board |
JPWO2016208625A1 (en) * | 2015-06-25 | 2018-04-05 | 株式会社クラレ | Easily fibrillated polyvinyl alcohol fiber and method for producing the same |
EP3315641A4 (en) * | 2015-06-25 | 2019-01-16 | Kuraray Co., Ltd. | Readily fibrillatable polyvinyl alcohol fiber and method for manufacturing same |
US11053610B2 (en) | 2015-06-25 | 2021-07-06 | Kuraray Co., Ltd. | Readily fibrillative polyvinyl alcohol fiber and method for manufacturing same |
WO2017086997A1 (en) * | 2015-11-20 | 2017-05-26 | General Electric Company | A polyvinyl alcohol porous support and method |
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