JPS57117614A - Preparation of cellulose acetate fibrous aggreagate - Google Patents
Preparation of cellulose acetate fibrous aggreagateInfo
- Publication number
- JPS57117614A JPS57117614A JP10213180A JP10213180A JPS57117614A JP S57117614 A JPS57117614 A JP S57117614A JP 10213180 A JP10213180 A JP 10213180A JP 10213180 A JP10213180 A JP 10213180A JP S57117614 A JPS57117614 A JP S57117614A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- cellulose acetate
- spinning solution
- temperature
- tension
- 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
Links
Landscapes
- Artificial Filaments (AREA)
Abstract
PURPOSE: To obtain the titled fibrous aggregate having improved mechanical properties and a superfine size per fiber, by wet spinning a spinning solution consisting of cellulose acetate having a specific combined acetyl group content, removing the solvent from the extruded fibers, and drying the resultant fibers under no tension.
CONSTITUTION: Cellulose acetate having a combined acetyl group content ≥54% and a polymerization degree of about 150W400, e.g. cellulose diacetate, is dissolved in acetone, filtered and deaerated to give a spinning solution with a polymeric concentration ≤13wt%, preferably 12W8wt%. The resultant spinning solution is then wet spun into a aqueous coagulation bath kept at a temperature in the range of -15W+30°C at an extruding temperature not exceeding 20°C above the bath temperature. The spun fibers are then washed with hot water, and the solvent is removed therefrom. The washed fibers are saponified with a caustic alkali, etc. if necessary and dried under no tension to give the aimed fibrous aggregate having a size per fiber ≤0.5 denier.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10213180A JPS57117614A (en) | 1980-07-25 | 1980-07-25 | Preparation of cellulose acetate fibrous aggreagate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10213180A JPS57117614A (en) | 1980-07-25 | 1980-07-25 | Preparation of cellulose acetate fibrous aggreagate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57117614A true JPS57117614A (en) | 1982-07-22 |
| JPS6234846B2 JPS6234846B2 (en) | 1987-07-29 |
Family
ID=14319214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10213180A Granted JPS57117614A (en) | 1980-07-25 | 1980-07-25 | Preparation of cellulose acetate fibrous aggreagate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57117614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006954A1 (en) * | 1992-09-14 | 1994-03-31 | Eastman Chemical Company | Process for the production of fine denier cellulose acetate fibers |
| WO2003000967A1 (en) * | 2001-06-22 | 2003-01-03 | Sk Chemicals Co., Ltd | Method of producing cellulose fibers by use of cold-pad-batch |
-
1980
- 1980-07-25 JP JP10213180A patent/JPS57117614A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006954A1 (en) * | 1992-09-14 | 1994-03-31 | Eastman Chemical Company | Process for the production of fine denier cellulose acetate fibers |
| WO2003000967A1 (en) * | 2001-06-22 | 2003-01-03 | Sk Chemicals Co., Ltd | Method of producing cellulose fibers by use of cold-pad-batch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6234846B2 (en) | 1987-07-29 |
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