GB413311A - Improvements in the manufacture of artificial filaments - Google Patents
Improvements in the manufacture of artificial filamentsInfo
- Publication number
- GB413311A GB413311A GB540/33A GB54033A GB413311A GB 413311 A GB413311 A GB 413311A GB 540/33 A GB540/33 A GB 540/33A GB 54033 A GB54033 A GB 54033A GB 413311 A GB413311 A GB 413311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- solvent
- zone
- evaporative
- maintained
- 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)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
<PICT:0413311/IV/1> In the production of artificial filaments, a spinning solution is extruded into an evaporative zone in which a substantially reduced pressure is maintained, and the filaments are then stretched outside said evaporative zone while they still contain a high proportion of solvent. A lubricant or a softening agent may be applied to the filaments as they leave the evaporative zone, and the vapour of a solvent may be fed into the stretching zone. The suction maintained in the evaporative zone is of the order of 5 inches or more of mercury. The invention is particularly applicable to the manufacture of filaments of cellulose esters and ethers. In one form, apparatus according to the invention comprises a spinning cell heated by pipes 10, the spinning jet 7 being mounted on a swivel. The required reduction of pressure is maintained by drawing off the vapours through a pipe 26. After a short travel through the evaporative zone, the bundle of filaments passes into a casing 17 through a very small opening 12 of the kind described in Specification 343,936, then over rollers 15 and 16, and to a cap spinning device 22. The roller 16 rotates faster than the roller 15, so that the filaments are stretched. A wick 14, e.g. of the type described in Specification 392,904, serves to supply solvent or lubricant to the filaments. Air may be drawn off through a pipe 21 leading to a solvent recovery plant. The upper roller 15 may be cooled, and both rollers may be of rustless material. In another form, solvent vapours or air may be admitted to the stretching compartment. Specifications 323,790, 324,061, [both in Class 2 (ii)], and 413,289 also are referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB540/33A GB413311A (en) | 1933-01-06 | 1933-01-06 | Improvements in the manufacture of artificial filaments |
| US704116A US2072928A (en) | 1933-01-06 | 1933-12-27 | Manufacture of artificial materials |
| FR779958D FR779958A (en) | 1933-01-06 | 1934-11-05 | Improvements in the manufacture of artificial materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB540/33A GB413311A (en) | 1933-01-06 | 1933-01-06 | Improvements in the manufacture of artificial filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB413311A true GB413311A (en) | 1934-07-06 |
Family
ID=9706143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB540/33A Expired GB413311A (en) | 1933-01-06 | 1933-01-06 | Improvements in the manufacture of artificial filaments |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2072928A (en) |
| FR (1) | FR779958A (en) |
| GB (1) | GB413311A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2451854A (en) * | 1944-06-15 | 1948-10-19 | Du Pont | Dry spinning apparatus |
| US2535426A (en) * | 1948-06-15 | 1950-12-26 | Celanese Corp | Metier |
| BE787890A (en) * | 1971-09-09 | 1973-02-23 | Solvay |
-
1933
- 1933-01-06 GB GB540/33A patent/GB413311A/en not_active Expired
- 1933-12-27 US US704116A patent/US2072928A/en not_active Expired - Lifetime
-
1934
- 1934-11-05 FR FR779958D patent/FR779958A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2072928A (en) | 1937-03-09 |
| FR779958A (en) | 1935-04-16 |
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