GB418453A - Improvements in or relating to the manufacture of yarns or threads - Google Patents
Improvements in or relating to the manufacture of yarns or threadsInfo
- Publication number
- GB418453A GB418453A GB1205233A GB1205233A GB418453A GB 418453 A GB418453 A GB 418453A GB 1205233 A GB1205233 A GB 1205233A GB 1205233 A GB1205233 A GB 1205233A GB 418453 A GB418453 A GB 418453A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- stretching
- manufacture
- continuous
- staple fibre
- 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
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
- D01G1/08—Converting tows to slivers or yarns, e.g. in direct spinning by stretching or abrading
- D01G1/081—Converting tows to slivers or yarns, e.g. in direct spinning by stretching or abrading with preferential breaking zones
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
418,453. Stapling continuous filaments. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A., and TYCE, G. C., c/o British Celanese, Ltd., Spondon, near Derby. April 25, 1933, No. 12052. [Class 120 (iii).] To increase the strength of staple fibre yarns made from continuous artificial filaments particularly of cellulose acetate &c., the filaments before conversion to staple fibre are subjected to a stretching operation while in the softened condition as produced by an organic softening agent, the stretching taking place either continuously with the manufacture of the filaments or as an operation separate from such manufacture. By the stretching, the strength of the filaments is increased ; at the same time their denier is reduced. Stretching may be carried out according to the processes of Specifications 277,089, 323,790, [both in Class 120 (iii)], 370,430, and 371,461, and the filaments are preferably stretched to 200 per cent or more. Suitable softening agents are acetone, ethylene methylene ether, dioxane and similar cyclic ethers. The continuous filaments may be converted into staple fibre by cutting; or they may be passed through breaking rolls so as to rupture the filaments, the mass of fibres being treated either as a roving or converted directly into a spun yarn. The breaking rolls may be as described in Specifications 410,805 and 417,326. To restore the extensibility lost during the stretching operation, the continuous filaments or the spun yarn may be subjected to the conditioning treatment of Specification 411,506. Specification 417,325 is referred to in the Provisional Specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1205233A GB418453A (en) | 1933-04-25 | 1933-04-25 | Improvements in or relating to the manufacture of yarns or threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1205233A GB418453A (en) | 1933-04-25 | 1933-04-25 | Improvements in or relating to the manufacture of yarns or threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB418453A true GB418453A (en) | 1934-10-25 |
Family
ID=9997551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1205233A Expired GB418453A (en) | 1933-04-25 | 1933-04-25 | Improvements in or relating to the manufacture of yarns or threads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB418453A (en) |
-
1933
- 1933-04-25 GB GB1205233A patent/GB418453A/en not_active Expired
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