GB619564A - Improvements in or relating to the manufacture of cellulose acetate filaments, filmsor the like - Google Patents
Improvements in or relating to the manufacture of cellulose acetate filaments, filmsor the likeInfo
- Publication number
- GB619564A GB619564A GB36239/46A GB3623946A GB619564A GB 619564 A GB619564 A GB 619564A GB 36239/46 A GB36239/46 A GB 36239/46A GB 3623946 A GB3623946 A GB 3623946A GB 619564 A GB619564 A GB 619564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guide
- filaments
- cabinet
- pict
- spinning
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/04—Dry spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
- D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
<PICT:0619564/IV(a)/1> <PICT:0619564/IV(a)/2> <PICT:0619564/IV(a)/3> <PICT:0619564/IV(a)/4> Filaments, films and the like of cellulose acetate are dried throughout their section by the action of a radio frequency electrostatic field applied as they issue from the spinning orifice through which the solution or suspension of acetylated cellulose is forced, the dried filaments or films being subsequently wound up on a collecting device. If desired, the member in which the spinning orifice is situated, and the winding device or a guide roller receiving the filaments may form the heating electrodes, thus concentrating the lines of force along the filaments or film instead of transversely thereto and giving the maximum heating effect. The atmosphere in the spinning cabinet may, if desired, be saturated or supersaturated with acetone or other suitable solvent to prevent initial rapid drying out of the outside surface of the filaments. In Fig. 1, a spinneret 12 centrally disposed near the upper end of a spinning cabinet 13 is connected to the negative or earth side of a source of radio frequency energy 20. The positive pole is connected to an insulated guide 18 over which the filaments 17 are drawn, this guide being disposed beneath a central aperture 16 in the lower end of the cabinet. To prevent rapid initial drying an atmosphere saturated or supersaturated with acetone or other suitable solvent is injected through a nozzle 33 mounted in the wall of the cabinet. The base of the cabinet carries a drainage tube 14 for drawing off condensed solvent. To prevent the filaments from being wound in a positively charged condition, a further guide 19 is interposed between the guide 18 and the wind-up roll 23, this guide 19 being connected to the negative side of the source of energy, thus earthing the filaments. Alternatively, the guide 18 may be replaced by a guide 24 (Fig. 2) midway along the cabinet, and the guide 19 by a guide 25 beneath the outlet aperture 16. Fig. 3 shows a modification using spaced heating electrodes 26 and 27; in this case the electrostatic field lies transversely to the filaments 17. A cavity resonator 29 (Fig. 4) may also be employed, the filaments passing therethrough and being heated by micro-waves passing along a wave-guide 30 into the resonator.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36239/46A GB619564A (en) | 1946-12-07 | 1946-12-07 | Improvements in or relating to the manufacture of cellulose acetate filaments, filmsor the like |
US789173A US2542301A (en) | 1946-12-07 | 1947-12-02 | Manufacture of filaments, films, or the like of artificial materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36239/46A GB619564A (en) | 1946-12-07 | 1946-12-07 | Improvements in or relating to the manufacture of cellulose acetate filaments, filmsor the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB619564A true GB619564A (en) | 1949-03-10 |
Family
ID=10386262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36239/46A Expired GB619564A (en) | 1946-12-07 | 1946-12-07 | Improvements in or relating to the manufacture of cellulose acetate filaments, filmsor the like |
Country Status (2)
Country | Link |
---|---|
US (1) | US2542301A (en) |
GB (1) | GB619564A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1125585B (en) * | 1949-05-18 | 1962-03-15 | Kurashiki Rayon Co | Process for the production of artificial threads from polyvinyl alcohol |
US2982598A (en) * | 1955-12-12 | 1961-05-02 | British Celanese | Manufacture of cellulose triacetate textile materials |
NL124390C (en) * | 1958-03-10 | |||
US5116682A (en) * | 1990-12-17 | 1992-05-26 | Bridgestone/Firestone, Inc. | Process for producing anti-wicking polyester yarn and product produced thereby |
US5314647A (en) * | 1992-07-20 | 1994-05-24 | Eastman Kodak Company | Method of making cellulose ester photographic film base |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1906042A (en) * | 1929-09-14 | 1933-04-25 | Barthelemy Henri Louis | Spinning cell for the manufacture of artificial filaments with auto-recovery of the volatile solvents |
FR722631A (en) * | 1930-09-09 | 1932-03-22 | Process and apparatus for the manufacture of artificial filaments, ribbons, etc., by extruding solutions of cellulose esters or ethers | |
US2168027A (en) * | 1935-12-07 | 1939-08-01 | Du Pont | Apparatus for the production of filaments, threads, and the like |
US2185417A (en) * | 1937-06-25 | 1940-01-02 | Jr Charles L Norton | Method of and apparatus for forming fibrous material |
US2303983A (en) * | 1941-05-31 | 1942-12-01 | Rca Corp | Heat treating apparatus |
US2433842A (en) * | 1944-02-16 | 1948-01-06 | American Viscose Corp | Method of drying rayon thread by high-frequency electric currents |
-
1946
- 1946-12-07 GB GB36239/46A patent/GB619564A/en not_active Expired
-
1947
- 1947-12-02 US US789173A patent/US2542301A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2542301A (en) | 1951-02-20 |
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