GB187942A - Improvements in the manufacture of threads or the like from viscose solutions - Google Patents
Improvements in the manufacture of threads or the like from viscose solutionsInfo
- Publication number
- GB187942A GB187942A GB14261/22A GB1426122A GB187942A GB 187942 A GB187942 A GB 187942A GB 14261/22 A GB14261/22 A GB 14261/22A GB 1426122 A GB1426122 A GB 1426122A GB 187942 A GB187942 A GB 187942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- threads
- manufacture
- bath
- viscose solutions
- acid
- 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
- 229920000297 Rayon Polymers 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 1
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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
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
In the manufacture of artificial threads &c. from an unripened viscose employing an acid coagulating-bath, the carbon disulphide contained in the freshly precipitated acid threads is removed by treating the threads without previous washing, with a bath containing free alkali. The bath may be maintained at 60 DEG C., and to it may be added a small quantity of sodium sulphide so as simultaneously to remove the sulphur; in that case, only a single washing is necessary. Specifications 135,205, 152,349, 152,350, and 152,351 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE187942X | 1921-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB187942A true GB187942A (en) | 1923-05-03 |
Family
ID=5720632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14261/22A Expired GB187942A (en) | 1921-10-27 | 1922-05-20 | Improvements in the manufacture of threads or the like from viscose solutions |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR551742A (en) |
| GB (1) | GB187942A (en) |
-
1922
- 1922-05-19 FR FR551742D patent/FR551742A/en not_active Expired
- 1922-05-20 GB GB14261/22A patent/GB187942A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR551742A (en) | 1923-04-12 |
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