JPS5450618A - Production of cellulose fiber - Google Patents
Production of cellulose fiberInfo
- Publication number
- JPS5450618A JPS5450618A JP11552177A JP11552177A JPS5450618A JP S5450618 A JPS5450618 A JP S5450618A JP 11552177 A JP11552177 A JP 11552177A JP 11552177 A JP11552177 A JP 11552177A JP S5450618 A JPS5450618 A JP S5450618A
- Authority
- JP
- Japan
- Prior art keywords
- dimethyl sulfoxide
- alkali
- water
- solution
- dmso
- 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
- Artificial Filaments (AREA)
Abstract
PURPOSE: To recover dimethyl sulfoxide stably and efficiently and obtain the title fiber free of adhesion and devitrification, by extruding a specific maodified cellulose solution into a coagulation bath consisiting of an alkali, water, and dimethyl sulfoxide.
CONSTITUTION: A solution obtained by dissolving cellulose into dimethyl sulfoxide in the presence of para formaldehyde is subjected to a vacuum, or a gas, e.g. N2, etc. is blown into the solution to remove the remaining paraformaldehyde or formaldehyde outside the system. The resulting spinning solution free of formalin odor at room temperature is extruded into a coagulation bath having a high coagulating power consisting of an alkali, water, and dismethyl sulfoxide. Preferably, the amount of alkali is 0.01W5%, and the weight ratio of the dimethyl sulfoxide (DMSO) to the water is 20:80W85:15 in the primary bath for recovering and recycling DMSO efficiently at a low cost
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11552177A JPS5450618A (en) | 1977-09-28 | 1977-09-28 | Production of cellulose fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11552177A JPS5450618A (en) | 1977-09-28 | 1977-09-28 | Production of cellulose fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5450618A true JPS5450618A (en) | 1979-04-20 |
Family
ID=14664575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11552177A Pending JPS5450618A (en) | 1977-09-28 | 1977-09-28 | Production of cellulose fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5450618A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010084314A (en) * | 2008-10-01 | 2010-04-15 | Dong Il Sin | Head protective headgear |
CN113293241A (en) * | 2021-06-01 | 2021-08-24 | 嘉兴学院 | Method for treating free formaldehyde in fur product |
-
1977
- 1977-09-28 JP JP11552177A patent/JPS5450618A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010084314A (en) * | 2008-10-01 | 2010-04-15 | Dong Il Sin | Head protective headgear |
CN113293241A (en) * | 2021-06-01 | 2021-08-24 | 嘉兴学院 | Method for treating free formaldehyde in fur product |
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