GB249845A - An improved method of manufacturing cuprammonium silk threads - Google Patents
An improved method of manufacturing cuprammonium silk threadsInfo
- Publication number
- GB249845A GB249845A GB7061/26A GB706126A GB249845A GB 249845 A GB249845 A GB 249845A GB 7061/26 A GB7061/26 A GB 7061/26A GB 706126 A GB706126 A GB 706126A GB 249845 A GB249845 A GB 249845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- bath
- metres
- threads
- coagulating
- 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
- D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
- D01F2/04—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts from cuprammonium solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
249,845. Schulz, W. March 26, 1925, [Convention date]. Ammoniacal copper cellulose solutions, processes for making filaments from.-To enable an aqueous solution of ammonia to be used a, the coagulating bath in the stretch spinning of cuprammonia cellulose silk, the bath is used at a temperature of 60-95‹ C. or the travel of the filaments in the bath is increased by employing a minimum distance of 1.5 metres, or both of these precautions are observed. In examples, the temperature of the bath which contains 1-2 per cent of ammonia, is 80‹ C., and a spinning length of 2.5 metres is employed. By the employment of aqueous ammonia solution as the coagulating-medium, it becomes possible to recover the ammonia; it is preferred to employ a bath containing not more than 3-4 per cent of ammonia. By this process the finest threads may be produced, the threads showing at the same time an improved tensile strength and a crosssection more nearly circular.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE249845X | 1925-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB249845A true GB249845A (en) | 1927-05-12 |
Family
ID=5935846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7061/26A Expired GB249845A (en) | 1925-03-26 | 1926-03-13 | An improved method of manufacturing cuprammonium silk threads |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE498158C (en) |
| GB (1) | GB249845A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE961287C (en) * | 1952-08-28 | 1957-04-04 | Bayer Ag | Process for the production of tubular hollow threads from copper oxide-ammonia-cellulose solutions |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL100700C (en) * | 1956-05-11 |
-
1925
- 1925-03-27 DE DESCH73603D patent/DE498158C/en not_active Expired
-
1926
- 1926-03-13 GB GB7061/26A patent/GB249845A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE961287C (en) * | 1952-08-28 | 1957-04-04 | Bayer Ag | Process for the production of tubular hollow threads from copper oxide-ammonia-cellulose solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE498158C (en) | 1930-05-19 |
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