GB651304A - Improvements in and relating to the production of alkali cellulose for viscose - Google Patents
Improvements in and relating to the production of alkali cellulose for viscoseInfo
- Publication number
- GB651304A GB651304A GB1263148A GB1263148A GB651304A GB 651304 A GB651304 A GB 651304A GB 1263148 A GB1263148 A GB 1263148A GB 1263148 A GB1263148 A GB 1263148A GB 651304 A GB651304 A GB 651304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caustic soda
- cellulose
- silver
- weight
- steeping
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose
-
- 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
- D01F2/08—Composition of the spinning solution or the bath
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
Abstract
Alkali cellulose for making viscose is prepared by steeping cellulose in aqueous caustic soda solution containing 17-25 per cent by weight of caustic soda in the presence of not more than 0.5 per cent by weight, based on the weight of the caustic soda solution, of a compound which is soluble in the caustic soda and which consists of silver hydroxide, an aromatic primary or secondary amine with at least one sulphonic acid group, or a quinone. The silver hydroxide is preferably formed in situ by the addition of a silver salt to the steeping solution. Suitable organic compounds which may be used are diphenylamine sulphonic acid and 1 : 4-naphthoquinone. At least 500 p.p.m. by weight of silver should be present. The compound may be added either to the caustic soda steeping solution or to the cellulose. After steeping, the alkali cellulose is converted into viscose in the normal way, being particularly suitable for the production of high-viscosity viscoses of 3-4 per cent cellulose. In an example two separate batches of 50 parts by weight of wood pulp were stirred with (a) 550 parts of 21 per cent caustic soda free from added silver nitrate and (b) the same amount of caustic soda to which silver nitrate had been added to give 500 p.p.m.Ag. The fluidity of the cellulose was determined at intervals over 4 days, and showed substantially no change in the case of that with the added silver. Specifications 13055/14, 14675/14, 135,205 and 240,717, [all in Class 2 (ii)], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1263148A GB651304A (en) | 1948-05-07 | 1948-05-07 | Improvements in and relating to the production of alkali cellulose for viscose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1263148A GB651304A (en) | 1948-05-07 | 1948-05-07 | Improvements in and relating to the production of alkali cellulose for viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB651304A true GB651304A (en) | 1951-03-14 |
Family
ID=10008250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1263148A Expired GB651304A (en) | 1948-05-07 | 1948-05-07 | Improvements in and relating to the production of alkali cellulose for viscose |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB651304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757461A (en) * | 2016-12-15 | 2017-05-31 | 山东银鹰化纤有限公司 | A kind of half wet pulp prepares the preparation method of alkali cellulose and rayon spinning glue |
-
1948
- 1948-05-07 GB GB1263148A patent/GB651304A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757461A (en) * | 2016-12-15 | 2017-05-31 | 山东银鹰化纤有限公司 | A kind of half wet pulp prepares the preparation method of alkali cellulose and rayon spinning glue |
| CN106757461B (en) * | 2016-12-15 | 2019-06-14 | 山东银鹰化纤有限公司 | A kind of half wet pulp prepares the preparation method of alkali cellulose and rayon spinning glue |
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