JPS5735011A - Spinning nozzle for preparing hollow fiber - Google Patents

Spinning nozzle for preparing hollow fiber

Info

Publication number
JPS5735011A
JPS5735011A JP10696880A JP10696880A JPS5735011A JP S5735011 A JPS5735011 A JP S5735011A JP 10696880 A JP10696880 A JP 10696880A JP 10696880 A JP10696880 A JP 10696880A JP S5735011 A JPS5735011 A JP S5735011A
Authority
JP
Japan
Prior art keywords
hollow fiber
gas
capillary
expelling
extruded
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.)
Granted
Application number
JP10696880A
Other languages
Japanese (ja)
Other versions
JPS6229523B2 (en
Inventor
Kenichi Sakunaga
Hiroshi Terada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP10696880A priority Critical patent/JPS5735011A/en
Publication of JPS5735011A publication Critical patent/JPS5735011A/en
Publication of JPS6229523B2 publication Critical patent/JPS6229523B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: To obtain a hollow fiber having uniform degrees of orientation and crystallization and high percentage of hollowness and filtration velocity, by expelling a gas fed into the interior of an extruded and formed hollow fiber partially from a capillary for expelling the gas provided with a gas supplying capillary in a spinning hole.
CONSTITUTION: A cooling gas is fed from a gas supplying capillary 8 into the interior of a molten polymer extruded through an extruding slit 7 in the form of a hollow fiber, and the supplied gas is then partially expelled from an expelling capillary 9 through a pressure balancing chamber 10 to the outside. The balance between the internal pressure and the external pressure of the hollow fiber is kept in the pressure balancing chamber 10. The controlled cooling of the inner and the outer walls of the extruded hollow fiber provides a hollow fibrous membrane having a slight fiber unevenness of the diameter thereof, a uniform structure of the inner and the outer surfaces and a high degree of filtering property such as a high percentage of hollowness and filtration velocity.
COPYRIGHT: (C)1982,JPO&Japio
JP10696880A 1980-08-04 1980-08-04 Spinning nozzle for preparing hollow fiber Granted JPS5735011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10696880A JPS5735011A (en) 1980-08-04 1980-08-04 Spinning nozzle for preparing hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10696880A JPS5735011A (en) 1980-08-04 1980-08-04 Spinning nozzle for preparing hollow fiber

Publications (2)

Publication Number Publication Date
JPS5735011A true JPS5735011A (en) 1982-02-25
JPS6229523B2 JPS6229523B2 (en) 1987-06-26

Family

ID=14447107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10696880A Granted JPS5735011A (en) 1980-08-04 1980-08-04 Spinning nozzle for preparing hollow fiber

Country Status (1)

Country Link
JP (1) JPS5735011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239507A (en) * 1984-05-10 1985-11-28 Asahi Chem Ind Co Ltd Production of hollow undrawn material of crystalline thermoplastic resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239507A (en) * 1984-05-10 1985-11-28 Asahi Chem Ind Co Ltd Production of hollow undrawn material of crystalline thermoplastic resin

Also Published As

Publication number Publication date
JPS6229523B2 (en) 1987-06-26

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