JPS5725407A - Porous acetate fiber - Google Patents
Porous acetate fiberInfo
- Publication number
- JPS5725407A JPS5725407A JP10016880A JP10016880A JPS5725407A JP S5725407 A JPS5725407 A JP S5725407A JP 10016880 A JP10016880 A JP 10016880A JP 10016880 A JP10016880 A JP 10016880A JP S5725407 A JPS5725407 A JP S5725407A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- surface area
- cellulose acetate
- pore surface
- porosity
- 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)
Abstract
PURPOSE: Specific amounts of cellulose acetate and other polymers are used and they are kept under phase-separation states and made into fiber to give the titled fiber with a specified porosity, pore surface area, high water absorption, dyeability and yarn performance.
CONSTITUTION: Cellulose acetate (55W98wt%) and another polymer, preferably an acrylic polymer, (2W45wt%) are dissolved in, e.g., dimethylformamide (abbreviated to DMF) and the solution is extruded into a coagulation bath of DMF aqueous solution to form hollow fiber of phase-separated polymer alloy. Then, the primary drawing is effected at less than 3 draw ratio, rinsed with water, dried at 105W150°C and the secondary drawing is conducted at 100W120°C to produce the objective fiber with big pores, which has porosity V of 0.05W0.75cm3/g and pore surface area A of 15m2/g where V/A is preferably more than 1/30.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10016880A JPS5725407A (en) | 1980-07-21 | 1980-07-21 | Porous acetate fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10016880A JPS5725407A (en) | 1980-07-21 | 1980-07-21 | Porous acetate fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5725407A true JPS5725407A (en) | 1982-02-10 |
Family
ID=14266780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10016880A Pending JPS5725407A (en) | 1980-07-21 | 1980-07-21 | Porous acetate fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5725407A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742918A (en) * | 1980-08-29 | 1982-03-10 | Mitsubishi Rayon Co Ltd | Hollow cellulosic derivative fiber |
-
1980
- 1980-07-21 JP JP10016880A patent/JPS5725407A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742918A (en) * | 1980-08-29 | 1982-03-10 | Mitsubishi Rayon Co Ltd | Hollow cellulosic derivative fiber |
JPH0120245B2 (en) * | 1980-08-29 | 1989-04-14 | Mitsubishi Rayon Co |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES8605686A1 (en) | Asymmetric microporous hollow fibre, especially for hemodialysis, and process for making it. | |
JPS5656202A (en) | Hollow porous membrane yarn made of polyvinylidene fluoride type resin | |
JPS5725407A (en) | Porous acetate fiber | |
JPS5455623A (en) | Hollow fiber and its production | |
JPS5535969A (en) | Ethylene-vinyl alcohol copolymer membrane and its manufacture | |
JPS5742919A (en) | Porous hollow polyethylenic fiber and its preparation | |
JPS5610533A (en) | Polyvinyl alcohol porous membrane and production thereof | |
JPS57133211A (en) | Production of hollow fiber of cellulose ester | |
JPS5496126A (en) | Preparation of fibroin dope | |
JPS5751812A (en) | Porous acrylic synthetic fiber | |
JPS5653209A (en) | Composite acrylic fiber having water absorption and its preparation | |
JPS57101009A (en) | Production of porous vinyl synthetic fiber of high dyeability | |
JPS5534109A (en) | Polyethylene glycol composition | |
JPS5653208A (en) | Composite acrylic fiber and its production | |
JPS575914A (en) | Modification of porous hollow fiber | |
JPS57106717A (en) | Porous synthetic vinyl fiber having water and moisture absorbing property | |
JPS5789612A (en) | Production of hollow acrylic fiber | |
JPS5658005A (en) | Cellulosic hollow fiber | |
JPS54131025A (en) | Production of hollow cellulose derivative fibers | |
JPS57101008A (en) | Porous vinyl synthetic fiber of high water absorption | |
JPS5378323A (en) | Production of hollow acrylonitrile fibers | |
JPS5551818A (en) | Production of polyvinyl alcohol hollow fiber with high dimensional stability | |
JPS5442424A (en) | Fibrous hollow film and its production | |
JPS54151615A (en) | Production of hollow fibers | |
JPS5643417A (en) | Cellulosic hollow fiber |