GB490074A - Improvements in or relating to the manufacture and production of artificial threads, filaments and the like - Google Patents
Improvements in or relating to the manufacture and production of artificial threads, filaments and the likeInfo
- Publication number
- GB490074A GB490074A GB838637A GB838637A GB490074A GB 490074 A GB490074 A GB 490074A GB 838637 A GB838637 A GB 838637A GB 838637 A GB838637 A GB 838637A GB 490074 A GB490074 A GB 490074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treated
- filaments
- relating
- manufacture
- production
- 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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/223—Stretching in a liquid bath
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Thread, produced by extruding a solution containing cellulose or a derivative thereof into a coagulating bath, is gradually stretched by passing it several times round a pair of rotating conical rollers arranged with their axes inclined with respect to one another and during only the latter part of the stretching operation is treated with water or an aqueous solution. This treatment liquid may be at elevated temperature and may contain small quantities of an acid, such as sulphuric acid, or of a salt, such as sodium sulphate. In an example, viscose thread is gradually stretched in the above-stated manner, and during the latter part of the stretching operation is treated with water at 45 DEG C. Specification 484,339 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB838637A GB490074A (en) | 1937-03-22 | 1937-03-22 | Improvements in or relating to the manufacture and production of artificial threads, filaments and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB838637A GB490074A (en) | 1937-03-22 | 1937-03-22 | Improvements in or relating to the manufacture and production of artificial threads, filaments and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490074A true GB490074A (en) | 1938-08-09 |
Family
ID=9851538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB838637A Expired GB490074A (en) | 1937-03-22 | 1937-03-22 | Improvements in or relating to the manufacture and production of artificial threads, filaments and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB490074A (en) |
-
1937
- 1937-03-22 GB GB838637A patent/GB490074A/en not_active Expired
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