GB512239A - Improvements in the production of extensible slivers of staple fibre from bands of continuous filaments - Google Patents
Improvements in the production of extensible slivers of staple fibre from bands of continuous filamentsInfo
- Publication number
- GB512239A GB512239A GB251238A GB251238A GB512239A GB 512239 A GB512239 A GB 512239A GB 251238 A GB251238 A GB 251238A GB 251238 A GB251238 A GB 251238A GB 512239 A GB512239 A GB 512239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- draft
- continuous filaments
- extensibility
- sliver
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
512,239. Stapling continuous filaments. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.). Jan. 26, 1938, No. 2512. Drawings to Specification. [Class 120 (iii)] A sliver of staple fibre is formed from a band of continuous filaments by a single or manifold tearing operation, the draft or the first draft between the feed and tearing rollers being less than 2.5. Preferably the percentage difference between the peripheral speeds of the feed and draft rollers calculated on the speed of the former is about twice the percentage extensibility of the filaments, e.g., when the extensibility is about 20 per cent the best draft is about 1.4. and when the band is torn by a manifold tearing operation, at each draft subsequently to the first the draft is adjusted to suit the changed extensibility of the fibres. By this means it is stated that a sliver is obtained having a high proportion of fibres within the limits of staple length required and examples of drafts &c, are given. The sliver produced may be crimped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB251238A GB512239A (en) | 1938-01-26 | 1938-01-26 | Improvements in the production of extensible slivers of staple fibre from bands of continuous filaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB251238A GB512239A (en) | 1938-01-26 | 1938-01-26 | Improvements in the production of extensible slivers of staple fibre from bands of continuous filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512239A true GB512239A (en) | 1939-08-31 |
Family
ID=9740869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB251238A Expired GB512239A (en) | 1938-01-26 | 1938-01-26 | Improvements in the production of extensible slivers of staple fibre from bands of continuous filaments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512239A (en) |
-
1938
- 1938-01-26 GB GB251238A patent/GB512239A/en not_active Expired
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