US2192074A - Manufacture and production of artificial threads, filaments, and the like by the viscose process - Google Patents
Manufacture and production of artificial threads, filaments, and the like by the viscose process Download PDFInfo
- Publication number
- US2192074A US2192074A US113072A US11307236A US2192074A US 2192074 A US2192074 A US 2192074A US 113072 A US113072 A US 113072A US 11307236 A US11307236 A US 11307236A US 2192074 A US2192074 A US 2192074A
- Authority
- US
- United States
- Prior art keywords
- filaments
- viscose
- bath
- acid
- per cent
- 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 - Lifetime
Links
- 229920000297 Rayon Polymers 0.000 title description 26
- 238000004519 manufacturing process Methods 0.000 title description 16
- 239000002253 acid Substances 0.000 description 25
- 230000001112 coagulating effect Effects 0.000 description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- 239000001117 sulphuric acid Substances 0.000 description 11
- 235000011149 sulphuric acid Nutrition 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 235000009529 zinc sulphate Nutrition 0.000 description 9
- 229910052938 sodium sulfate Inorganic materials 0.000 description 8
- 235000011152 sodium sulphate Nutrition 0.000 description 8
- 229920002678 cellulose Polymers 0.000 description 7
- 239000001913 cellulose Substances 0.000 description 7
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical group [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 7
- 239000011686 zinc sulphate Substances 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012991 xanthate Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- XYSQXZCMOLNHOI-UHFFFAOYSA-N s-[2-[[4-(acetylsulfamoyl)phenyl]carbamoyl]phenyl] 5-pyridin-1-ium-1-ylpentanethioate;bromide Chemical compound [Br-].C1=CC(S(=O)(=O)NC(=O)C)=CC=C1NC(=O)C1=CC=CC=C1SC(=O)CCCC[N+]1=CC=CC=C1 XYSQXZCMOLNHOI-UHFFFAOYSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 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
Definitions
- Borzykowski (British specification No. 149,295 of 1920) also applied, stretch to the partially coagulated and still plastic thread by passing it round a roller rotating at a certain speed and then collecting it on a roller rotating at a greater peripheral speed.
- the plastic thread may bev stretched 25 per cent.
- the incompletely decomposed filaments may be subjected to the action of hot dilute acid, for example by passing them through a bath containing dilute sulphuric acid, for example 1.5 per cent mm at 95 centigrade, or the filaments acid coagulating bath taken over by the filaments.
- the stretch may be applied to the filaments by passing them round two rollers revolving at different speeds, care being taken-to avoid slipping of the filaments on the rollers.
- the stretching of the filaments according to this invention must be carried out at a temperature of at least centigrade and we prefer to employ a temperature of 80 centigrade or higher.
- the filaments After the filaments have been stretched in the presence of hot dilute acid as aforesaid, they can be subjected to the action of hot or cold water, during which, if desired, the stretching can be continued.
- the process of this invention is particularly applicable to the production of continuous filaments from viscose by the centrifugal process, and also to the production of discontinuous filaments such as staple fibre, for instance when the filaments, after leaving the coagulating bath and passing through the hot dilute acid bath in which stretching is effected, are passed into a cutter of the type described in British specification No. 289,028.
- Example Viscose containing 7.4 per cent of cellulose is passed through a nozzle containing 60 holes, at such a rate that the finished thread is about 120 denier, into a bath containing 9.5 per cent of sulphuric acid, 4.0 per cent of zinc sulphate and 20 per cent of sodium sulphate, at a temperature of 50 centigrade, the coagulated filaments being allowed to remainin the bath for a distance of about 20 centimetres.
- the thread is then immediately led round a wheel with a peripheral speed of 30 metres per minute and then for a distance of, 50 centimetres through a bath containing 1.5 per cent of sulphuric acid with the addition of 3 percent of sodium sulphate and 0.4 per cent of zinc sulphate, at 95 centigrade, then round a second wheel rotating with a peripheral speed of 56 metres per minute and it is collected finally in a centrifugal box rotating at 6,000 revolutions per minute.
- a process for the manufacture and production of continuous or discontinuous filaments of relatively high tenacity from Viscose which consists in partially coagulating the viscose filaments in a bath containing sulphuric acid and zinc and sodium sulphates wherein the proportion of the salts to the acid is such that immediate complete coagulation is prevented, then stretching the thus coagulated filaments with attendant reduction in cross section while passing them -i through a dilute acid bath which contains less acidthan the aforesaid coagulating bath and is maintained at atemperature above 60. centigrade, which increases the plasticity of the partially decomposed cellulose xanthate filaments.
- a process for the manufacture and production of continuous or discontinuous filaments of relatively high tenacity from viscose which consists in partially coagulating the viscose filaments in a bath containing sulphuric acid and zinc and sodium sulphates wherein the proportion of the salts to the acid is such that immediate complete coagulation is prevented, then stretching the thus coagulated filaments with attendant reduction in cross section while'passing them through a dilute acid bath which contains less acid than the aforesaid coagulating bath and is maintained at a temperature above 60 centigrade, which increases the plasticity of the partially decomposed cellulose xanthate filaments, acid for said dilute acid bath being the filaments from the coagulating bath.
- a process for the manufacture and produc tion of continuous or discontinuous filaments of relatively high tenacity from viscose which consists in partially coagulating the viscose filaments provided by acid taken over by in a bath containing sulphuric acid and sodium sulphate and at least 2.5 per cent of zinc sulphate, the proportion of the said salts to the acid being such that immediate complete coagulation is prevented, then stretching the thus coagulated filaments with attendant reduction in cross section while passing them through a dilute acid bath which contains less acid than the aforesaid coagulating bath and is maintained at a temperature above 60 centigrade, which increases the filaments with attendant reduction in cross section while passing them through a dilute acid bath which contains less acid than the aforesaid coagulating bath and is maintained at a temperature above 60 centigrade, which increases the plasticity of the partially decomposed cellulose xanthate filaments.
- a process for the manufacture and production of continuous or discontinuous filaments of relatively high tenacity from viscose which consists in partially coagulating the viscose filaments in a bath containing about 9.5 per cent of sulphuric acid, 4.0 per cent of zinc sulphate and 20 per cent of sodium sulphate, the said proportions of salts to acid being such that immediate complete coagulation is prevented, then stretching the thus coagulated filaments with attendant reduction in cross section by leading them in succession round two rollers, the second of which is rotating with a peripheral speed about 87 per cent greater than that of the first, while passing them through a dilute acid bath which contains less acid than the aforesaid coagulating bath and is maintained at a temperature of about centigrade which increases the plasticity of the partially decomposed cellulose xanthate filaments.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34532/35A GB467500A (en) | 1935-12-12 | 1935-12-12 | Improvements in and relating to the manufacture and production of artificial threads, filaments and the like by the viscose process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2192074A true US2192074A (en) | 1940-02-27 |
Family
ID=10366797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US113072A Expired - Lifetime US2192074A (en) | 1935-12-12 | 1936-11-27 | Manufacture and production of artificial threads, filaments, and the like by the viscose process |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2192074A (en(2012)) |
| BE (1) | BE419032A (en(2012)) |
| FR (1) | FR814800A (en(2012)) |
| GB (1) | GB467500A (en(2012)) |
| NL (1) | NL47053C (en(2012)) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2479218A (en) * | 1944-12-12 | 1949-08-16 | Int Paper Canada | Process for making rayon filaments |
| US2515834A (en) * | 1942-11-13 | 1950-07-18 | Du Pont | Cellulose filaments and method of producing same |
| DE973617C (de) * | 1951-09-14 | 1960-04-14 | North American Rayon Corp | Verfahren zur Vermeidung der Bildung von Zinksulfidniederschlaegen und Schwefelablagerungen beim Heisswasser-Zweibad-Spinnverfahren |
| US3038778A (en) * | 1957-06-21 | 1962-06-12 | American Enka Corp | Manufacture of viscose rayon |
| US3084021A (en) * | 1960-02-29 | 1963-04-02 | Morimoto Saichi | Process for producing regenerated cellulose filaments |
| US3109699A (en) * | 1962-04-30 | 1963-11-05 | Courtaulds North America Inc | Method for making rayon filaments |
| US3311445A (en) * | 1963-12-06 | 1967-03-28 | Standard Oil Co | Process of reacting cellulose fibers with carbonyl sulfide and product thereof |
| DE1278686B (de) * | 1962-05-04 | 1968-09-26 | Courtaulds North America Inc | Verfahren zum Herstellen von Faeden aus regenerierter Cellulose nach dem Viskoseverfahren |
| DE1294590B (de) * | 1962-05-16 | 1969-05-08 | Toyo Spinning Co Ltd | Verfahren zum Herstellen von Faeden oder Fasern aus regenerierter Cellulose |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763247C (de) * | 1938-05-12 | 1951-05-17 | Glanzstoff Ag | Verfahren zur Herstellung von Kunstseidenfaeden aus Viskose |
| DE767434C (de) * | 1938-10-04 | 1952-08-07 | Spinnstofffabrik Zehlendorf A | Verfahren zum Herstellen von kuenstlichen Faeden mit besonders hoher Nassfestigkeit nach dem Viskoseverfahren |
| DE749501C (de) * | 1941-05-25 | 1952-04-17 | Spinnfaser A G | Verfahren zur Herstellung von Zellwolle aus Viskose |
| DE752623C (de) * | 1941-05-25 | 1951-08-02 | Glanzstoff Ag | Verfahren zur Herstellung von hochfester Zellwolle aus Viskose |
-
0
- BE BE419032D patent/BE419032A/xx unknown
- NL NL47053D patent/NL47053C/xx active
-
1935
- 1935-12-12 GB GB34532/35A patent/GB467500A/en not_active Expired
-
1936
- 1936-11-27 US US113072A patent/US2192074A/en not_active Expired - Lifetime
- 1936-12-11 FR FR814800D patent/FR814800A/fr not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2515834A (en) * | 1942-11-13 | 1950-07-18 | Du Pont | Cellulose filaments and method of producing same |
| US2479218A (en) * | 1944-12-12 | 1949-08-16 | Int Paper Canada | Process for making rayon filaments |
| DE973617C (de) * | 1951-09-14 | 1960-04-14 | North American Rayon Corp | Verfahren zur Vermeidung der Bildung von Zinksulfidniederschlaegen und Schwefelablagerungen beim Heisswasser-Zweibad-Spinnverfahren |
| US3038778A (en) * | 1957-06-21 | 1962-06-12 | American Enka Corp | Manufacture of viscose rayon |
| US3084021A (en) * | 1960-02-29 | 1963-04-02 | Morimoto Saichi | Process for producing regenerated cellulose filaments |
| US3109699A (en) * | 1962-04-30 | 1963-11-05 | Courtaulds North America Inc | Method for making rayon filaments |
| DE1278686B (de) * | 1962-05-04 | 1968-09-26 | Courtaulds North America Inc | Verfahren zum Herstellen von Faeden aus regenerierter Cellulose nach dem Viskoseverfahren |
| DE1294590B (de) * | 1962-05-16 | 1969-05-08 | Toyo Spinning Co Ltd | Verfahren zum Herstellen von Faeden oder Fasern aus regenerierter Cellulose |
| US3311445A (en) * | 1963-12-06 | 1967-03-28 | Standard Oil Co | Process of reacting cellulose fibers with carbonyl sulfide and product thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| NL47053C (en(2012)) | |
| GB467500A (en) | 1937-06-14 |
| BE419032A (en(2012)) | |
| FR814800A (fr) | 1937-06-29 |
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