GB791775A - Process for the production of artificial threads and films from viscose - Google Patents
Process for the production of artificial threads and films from viscoseInfo
- Publication number
- GB791775A GB791775A GB25013/55A GB2501355A GB791775A GB 791775 A GB791775 A GB 791775A GB 25013/55 A GB25013/55 A GB 25013/55A GB 2501355 A GB2501355 A GB 2501355A GB 791775 A GB791775 A GB 791775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- viscose
- ammonia
- sulphuric acid
- films
- 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 6
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 abstract 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- 239000001117 sulphuric acid Substances 0.000 abstract 4
- 235000011149 sulphuric acid Nutrition 0.000 abstract 4
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000001913 cellulose Substances 0.000 abstract 3
- 239000007859 condensation product Substances 0.000 abstract 3
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 abstract 2
- 150000001299 aldehydes Chemical class 0.000 abstract 2
- 230000001112 coagulating effect Effects 0.000 abstract 2
- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 abstract 2
- MLUCVPSAIODCQM-UHFFFAOYSA-N crotonaldehyde Natural products CC=CC=O MLUCVPSAIODCQM-UHFFFAOYSA-N 0.000 abstract 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 2
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 2
- 235000011152 sodium sulphate Nutrition 0.000 abstract 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 2
- 235000009529 zinc sulphate Nutrition 0.000 abstract 2
- 239000011686 zinc sulphate Substances 0.000 abstract 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 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
- 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
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
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 production of artificial threads and films from viscose, from 0.01 to 1 per cent by weight of a condensation product, formed by the reaction of ammonia with an aldehyde containing two or more carbon atoms in the molecule in a 2 : 1 molar ratio, is added to a viscose of gamma value 42 or over, and the viscose is extruded into an aqueous coagulating bath containing 40-65 g./l. of sulphuric acid and over 30 g./l. of zinc sulphate. Thereafter the threads or films so formed are stretched by 80-120 per cent in a second aqueous bath at about 90 DEG C. containing 2-10 g./l. of sulphuric acid. The aldehyde may be acetaldehyde, crotonaldehyde or acrolein and, with ammonia and acetaldehyde, the molar ratio may alternatively be 1 : 1 or, with ammonia and acrolein, it may be 3 : 1. The viscose preferably contains 7-8 per cent of cellulose and 5-7 per cent of caustic soda. The coagulation bath preferably contains 160-200 g./l. of sodium sulphate and is advantageously at a temperature of 45-70 DEG C. In an example, a viscose containing 7.3 per cent of cellulose, 6.3 per cent of caustic soda and, based on the cellulose, 40 per cent of carbon bisulphide, with an addition of 0.2 per cent of a crotonaldehyde and ammonia condensation product (molar ratio 1 : 2) and having a gamma value of 42, is spun into an aqueous coagulating bath containing 65 g./l. of sulphuric acid, 245 g./l. of sodium sulphate and 50 g./l. of zinc sulphate. The filaments thus produced are stretched by 90 per cent in a second aqueous bath at 92 DEG C. containing 5 g./l. of sulphuric acid. The condensation product may be used without having been isolated from the reaction mixture. The threads produced have improved resistance to abrasion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV8113A DE1012025B (en) | 1954-11-25 | 1954-11-25 | Process for the production of artificial threads or films from viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB791775A true GB791775A (en) | 1958-03-12 |
Family
ID=7572167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25013/55A Expired GB791775A (en) | 1954-11-25 | 1955-08-31 | Process for the production of artificial threads and films from viscose |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE540587A (en) |
| CH (1) | CH340947A (en) |
| DE (1) | DE1012025B (en) |
| FR (1) | FR1139302A (en) |
| GB (1) | GB791775A (en) |
| NL (2) | NL200060A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL103242C (en) * | 1955-03-18 | 1962-12-17 | ||
| US3116011A (en) * | 1960-02-11 | 1963-12-31 | Laing Nikolaus | Flow machines |
-
0
- BE BE540587D patent/BE540587A/xx unknown
- NL NL85784D patent/NL85784C/xx active
- NL NL200060D patent/NL200060A/xx unknown
-
1954
- 1954-11-25 DE DEV8113A patent/DE1012025B/en active Pending
-
1955
- 1955-08-24 FR FR1139302D patent/FR1139302A/en not_active Expired
- 1955-08-31 GB GB25013/55A patent/GB791775A/en not_active Expired
- 1955-09-23 CH CH340947D patent/CH340947A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1139302A (en) | 1957-06-27 |
| DE1012025B (en) | 1957-07-11 |
| CH340947A (en) | 1959-09-15 |
| NL200060A (en) | 1900-01-01 |
| NL85784C (en) | 1900-01-01 |
| BE540587A (en) | 1900-01-01 |
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