[go: up one dir, main page]

JPS54134116A - Production of selective permeable hollow cellulose acetate fibers - Google Patents

Production of selective permeable hollow cellulose acetate fibers

Info

Publication number
JPS54134116A
JPS54134116A JP3985578A JP3985578A JPS54134116A JP S54134116 A JPS54134116 A JP S54134116A JP 3985578 A JP3985578 A JP 3985578A JP 3985578 A JP3985578 A JP 3985578A JP S54134116 A JPS54134116 A JP S54134116A
Authority
JP
Japan
Prior art keywords
extruded
solution
cellulose acetate
coagulation bath
water
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
JP3985578A
Other languages
Japanese (ja)
Other versions
JPS6042285B2 (en
Inventor
Masamichi Ishida
Toru Takemura
Hidenori Ota
Atsushi Kawai
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 JP3985578A priority Critical patent/JPS6042285B2/en
Publication of JPS54134116A publication Critical patent/JPS54134116A/en
Publication of JPS6042285B2 publication Critical patent/JPS6042285B2/en
Expired legal-status Critical Current

Links

Landscapes

  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: To obtain tough hollow fibers having improved selective permeability and circular cross-section, by extruding a cellulose acetate solution in a specific solvent through a spinneret of double-pipe structure together with a core material of specific liquid to coagulate the acetate in an aqueous coagulation bath, and by washing and drawing in hot water.
CONSTITUTION: Cellulose acetate is dissolved in a water-soluble organic solvent having a boiling point ≥ 100°C, preferably containing 1-10 wt.% of water, and the solution is extruded through the outer annular slit of the double-pipe structure. An ester of a fatty acid as a core material is injected into the inner pipe and extruded. The extruded solution is coagulated in an aqueous coagulation bath, washed and drawn in hot water. Preferably, the solution is once extruded from the slit into air or an inert gas, then introduced into the coagulation bath.
COPYRIGHT: (C)1979,JPO&Japio
JP3985578A 1978-04-05 1978-04-05 Method for producing permselective cellulose acetate hollow fibers Expired JPS6042285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3985578A JPS6042285B2 (en) 1978-04-05 1978-04-05 Method for producing permselective cellulose acetate hollow fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3985578A JPS6042285B2 (en) 1978-04-05 1978-04-05 Method for producing permselective cellulose acetate hollow fibers

Publications (2)

Publication Number Publication Date
JPS54134116A true JPS54134116A (en) 1979-10-18
JPS6042285B2 JPS6042285B2 (en) 1985-09-21

Family

ID=12564576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3985578A Expired JPS6042285B2 (en) 1978-04-05 1978-04-05 Method for producing permselective cellulose acetate hollow fibers

Country Status (1)

Country Link
JP (1) JPS6042285B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133378U (en) * 1986-02-14 1987-08-22

Also Published As

Publication number Publication date
JPS6042285B2 (en) 1985-09-21

Similar Documents

Publication Publication Date Title
JPS56307A (en) Hollow membrane of high polymer, its production and nozzle for producing the same
JPS5584412A (en) Production of hollow fiber
JPS54134116A (en) Production of selective permeable hollow cellulose acetate fibers
JPS57133211A (en) Production of hollow fiber of cellulose ester
JPS54131026A (en) Production of hollow cellulose acetate fibers
JPS54138616A (en) Production of hollow regenerated cellulose fiber
JPS54138615A (en) Production of hollow regenerated cellulose fiber
JPS55107505A (en) Production of hollow fiber
JPS5626004A (en) Production of cellulose acetate fiber
JPS5653208A (en) Composite acrylic fiber and its production
JPS5530439A (en) Production of hollow regenerated cellulose fiber
JPS55112310A (en) Production of acrylonitrile hollow fiber
JPS5620609A (en) Production of hollow cellulose derivative fiber
JPS54151615A (en) Production of hollow fibers
JPS55155704A (en) Hollow semipermeable membrane and its production
JPS5771409A (en) Preparation of hollow fiber
JPS569419A (en) Method of hydrolysis of cellulose ester hollow fiber
JPS569424A (en) Hollow acrylonitrile fiber and its production
JPS5526211A (en) Production of hollow cellulose derivative fiber
JPS5696909A (en) Preparation of hollow fiber
JPS569421A (en) Cellulose ester hollow fiber and its production
JPS54151573A (en) Manufacture of halogenated vinyl hollow fiber
JPS5626003A (en) Production of regenerated hollow cellulose fiber
JPS5696910A (en) Preparation of hollow fiber
JPS5551812A (en) Production of hollow fiber