GB397509A - Improvements in or relating to the production of artificial filaments or like extruded materials - Google Patents
Improvements in or relating to the production of artificial filaments or like extruded materialsInfo
- Publication number
- GB397509A GB397509A GB4807/32A GB480732A GB397509A GB 397509 A GB397509 A GB 397509A GB 4807/32 A GB4807/32 A GB 4807/32A GB 480732 A GB480732 A GB 480732A GB 397509 A GB397509 A GB 397509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- rods
- extrusion
- contact
- cellulose
- 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
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Artificial filaments are stretched continuously with production, the stretching force being prevented wholly or partly from extending back to the liquid filaments at the point of extrusion by a tensioning device or devices applied initially at points which are successively brought closer to the point of extrusion. In this manner stretching of the filaments when in a condition too weak to withstand the shock of the initial application of the tensioning means may be effected. If desired, tensioning devices more remote from the extrusion orifices may be removed after a tension device nearer to the extrusion orifices has been brought into action. The tensioning devices may be rod or freely mounted rollers, and in the case of dry spinning, they may be disposed at intervals along the whole path of the filaments through the evaporative atmosphere or within a range where the filaments contain more than 50 per <PICT:0397509/IV/1> <PICT:0397509/IV/2> <PICT:0397509/IV/3> <PICT:0397509/IV/4> cent of solvent. As shown in Fig. 1, filaments 14 are extruded downwardly from a nozzle 13 in a casing 10 through which passes a counter-current of evaporative medium, and pass out of the casing to a withdrawal roller 17 rotating at a greater peripheral speed than the rate of extrusion. They are further stretched by a roller 18 and then wound by the cap spinning device 19. Within the casing are a number of fixed rods 27 and movable rods 28, 33, the latter being operated by handles 31, 32. When spinning is started the tension rods are in the inoperative position. The movable rod 33 is then pushed into contact with the filaments, and the rods 28 are subsequently brought into action so as to apply the tension at points which approach successively closer to the p point of extrusion. As shown in Figs. 2 and 3, a number of rods are disposed on opposite sides of the filaments and pivoted so that they may be brought into contact with the filaments and constitute tensioning devices. The rods are jointed together and are operated simultaneously by the handle 50. They are so mounted that the rods more remote from the nozzle contact with the filaments before those nearer to the nozzle and when the rods nearest to the nozzle are in operation, those remote therefrom are moved out of contact with the filaments. If desired, the filaments may be lubricated before coming into contact with the tensioning devices. The stationary rods 27, shown in Fig. 1, may be hollow in construction and supplied with lubricant which passes through perforations 41 as shown in Fig. 1a and an absorbent fabric coating 42 to the filaments contacting therewith. The device may be used in dry or wet spinning processes for the production of threads of cellulose acetate, nitrate, or other cellulose ester, ethyl cellulose or other cellulose ether, or regenerated cellulose threads from viscose, cuprammonium or cellulose nitrate solutions.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4807/32A GB397509A (en) | 1932-02-18 | 1932-02-18 | Improvements in or relating to the production of artificial filaments or like extruded materials |
US654387A US2030189A (en) | 1932-02-18 | 1933-01-31 | Production of artificial materials |
FR749913D FR749913A (en) | 1932-02-18 | 1933-02-01 | Improvements in the manufacture of artificial materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4807/32A GB397509A (en) | 1932-02-18 | 1932-02-18 | Improvements in or relating to the production of artificial filaments or like extruded materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB397509A true GB397509A (en) | 1933-08-18 |
Family
ID=9784176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4807/32A Expired GB397509A (en) | 1932-02-18 | 1932-02-18 | Improvements in or relating to the production of artificial filaments or like extruded materials |
Country Status (3)
Country | Link |
---|---|
US (1) | US2030189A (en) |
FR (1) | FR749913A (en) |
GB (1) | GB397509A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3677481A (en) * | 1970-06-09 | 1972-07-18 | Monsanto Co | Method and apparatus for taking up fiber |
-
1932
- 1932-02-18 GB GB4807/32A patent/GB397509A/en not_active Expired
-
1933
- 1933-01-31 US US654387A patent/US2030189A/en not_active Expired - Lifetime
- 1933-02-01 FR FR749913D patent/FR749913A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR749913A (en) | 1933-08-01 |
US2030189A (en) | 1936-02-11 |
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