US2297260A - Manufacture of artificial silk - Google Patents
Manufacture of artificial silk Download PDFInfo
- Publication number
- US2297260A US2297260A US272634A US27263439A US2297260A US 2297260 A US2297260 A US 2297260A US 272634 A US272634 A US 272634A US 27263439 A US27263439 A US 27263439A US 2297260 A US2297260 A US 2297260A
- Authority
- US
- United States
- Prior art keywords
- bath
- sulphate
- spin
- zinc
- primary
- 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
- 229920002955 Art silk Polymers 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 20
- 229920000297 Rayon Polymers 0.000 description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 14
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 14
- 235000009529 zinc sulphate Nutrition 0.000 description 14
- 239000011686 zinc sulphate Substances 0.000 description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 13
- 229910052725 zinc Inorganic materials 0.000 description 13
- 239000011701 zinc Substances 0.000 description 13
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 10
- 235000019341 magnesium sulphate Nutrition 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 9
- 239000001117 sulphuric acid Substances 0.000 description 9
- 235000011149 sulphuric acid Nutrition 0.000 description 9
- 229910052938 sodium sulfate Inorganic materials 0.000 description 7
- 235000011152 sodium sulphate Nutrition 0.000 description 7
- 239000004627 regenerated cellulose Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910021653 sulphate ion Inorganic materials 0.000 description 5
- 238000009987 spinning Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000012991 xanthate Substances 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
- the process of producing threads of regenerated cellulose which comprises first spinning a viscose solution through the orifices of a spinneret into a primary, zinc-bearing, aqueous spin bath to form an incompletely decomposed viscose thread therein and subsequently stretching and decomposing said thread in a hot, secondary, aqueous spin bath to form a threadof regenerated cellulose, said primary spin bath containing about 16 to 30 grams of zinc sulphate, about 110 to 115 grams of sulphuric acid, about 150 to 250 grams of magnesium sulphate and about 200 to 260 grams of sodium sulphate per liter of bath, and said secondary spin bath having a temperature of at least 60 C. and containing less sodium sulphate, zinc sulphate, sulphuric acid and magnesium sulphate per liter of bath than said priand decomposing said thread in a hot, secondary,
- aqueous spin bath to form a thread of regenerated cellulose
- said primary spin bath containing about 200 grams of sodium sulphate, about 20 Y grams of zinc sulphate, about 115 grams of sulmary bath, whereby incrustation of said spinneret is substantially prevented.
- the process of producing threads of regenerated cellulose which comprises first spinning a viscose solution through the orifices of a spinneret into-a primary, zinc-bearing, aqueous spin bath to form an incompletely decomposed viscose thread therein and subsequently stretching and decomposing said thread in a hot, secondary, aqueous spin bath to form a thread of regenerated cellulose, said primary spin bath containing about 260 grams of sodium sulphate, about 30 grams of zinc sulphate, about 115 grams of sulphuric acid and about 200 grams of magnesium sulphate per liter of spin bath, and said secondary spin bath having a temperature of at least 60 C. and containing less sodium sulphate, zinc sulphate, sulphuric acid and magnesium sulphate per liter of bath than said primary bath, whereby incrustation of said spinneret is substantially prevented.
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 |
|---|---|---|---|
| DE2297260X | 1938-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2297260A true US2297260A (en) | 1942-09-29 |
Family
ID=7993968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US272634A Expired - Lifetime US2297260A (en) | 1938-05-11 | 1939-05-09 | Manufacture of artificial silk |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2297260A (en(2012)) |
| FR (1) | FR852640A (en(2012)) |
| NL (1) | NL50216C (en(2012)) |
-
0
- NL NL50216D patent/NL50216C/xx active
-
1939
- 1939-04-05 FR FR852640D patent/FR852640A/fr not_active Expired
- 1939-05-09 US US272634A patent/US2297260A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR852640A (fr) | 1940-02-28 |
| NL50216C (en(2012)) |
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