GB370772A - Improved process for the manufacture of artificial silk - Google Patents
Improved process for the manufacture of artificial silkInfo
- Publication number
- GB370772A GB370772A GB20246/31A GB2024631A GB370772A GB 370772 A GB370772 A GB 370772A GB 20246/31 A GB20246/31 A GB 20246/31A GB 2024631 A GB2024631 A GB 2024631A GB 370772 A GB370772 A GB 370772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- cellulose
- carbon disulphide
- excess
- ripened
- 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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Abstract
Artificial silk having filaments of from 6 to less than 1 denier are produced by spinning in the normal manner by means of acid salt baths, a normally ripened viscose having a low cellulose content (not higher than 6 per cent), to which an excess of carbon disulphide has been added or which has been prepared by the application of an excess of carbon disulphide. The normal amount of carbon disulphide is regarded as 45 per cent of the weight of the cellulose, and it is now proposed to use an excess amounting, for example, to from 9 to 18 per cent of the weight of the cellulose, but a still larger excess may be used by lowering the cellulose content of the solution. In examples, (1) to 1000 parts of viscose made in the normal manner and diluted to a cellulose content of 5,7 per cent, there is added 7 parts of carbon disulphide. The product is ripened and spun in the usual way; (2) normal viscose is diluted with caustic soda lye so as to contain 4,1 per cent of cellulose and 5,5 per cent of caustic soda, mixed with 1,7 per cent of carbon disulphide, ripened, and spun in the usual way; (3) a viscose is prepared in the normal manner, but during the sulphidation or during solution, an excess of about 18 per cent of carbon disulphide is added, and the product, which contains 5,0 per cent of cellulose and 5,2 per cent of caustic soda is ripened and spun into the usual spinning bath. Specifications 15752/10, 135,205, 189,973, 212,865, 220,934, 253,953, 314,504, 319,243, [all in Class 2 (ii), Cellulose &c.], and 350,397 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL370772X | 1930-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB370772A true GB370772A (en) | 1932-04-14 |
Family
ID=19785540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20246/31A Expired GB370772A (en) | 1930-07-14 | 1931-07-14 | Improved process for the manufacture of artificial silk |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE594859C (en) |
| FR (1) | FR719996A (en) |
| GB (1) | GB370772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2801998A (en) * | 1953-04-28 | 1957-08-06 | Du Pont | Xanthation process |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE812338C (en) * | 1948-10-02 | 1951-08-27 | Glanzstoff Ag | Process for the production of highly tear-resistant and high-torsion-resistant cellulose hydrate threads for the production of cord yarn as an insert material in rubber articles |
| FR1111580A (en) * | 1954-09-03 | 1956-03-01 | Comptoir Textiles Artificiels | Process for manufacturing high tenacity regenerated cellulose yarns |
-
1931
- 1931-07-11 DE DEN32355D patent/DE594859C/en not_active Expired
- 1931-07-13 FR FR719996D patent/FR719996A/en not_active Expired
- 1931-07-14 GB GB20246/31A patent/GB370772A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2801998A (en) * | 1953-04-28 | 1957-08-06 | Du Pont | Xanthation process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR719996A (en) | 1932-02-13 |
| DE594859C (en) | 1934-03-22 |
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