GB802013A - Process for the production of artificial filaments and films from viscose - Google Patents
Process for the production of artificial filaments and films from viscoseInfo
- Publication number
- GB802013A GB802013A GB25014/55A GB2501455A GB802013A GB 802013 A GB802013 A GB 802013A GB 25014/55 A GB25014/55 A GB 25014/55A GB 2501455 A GB2501455 A GB 2501455A GB 802013 A GB802013 A GB 802013A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- per cent
- sulphuric acid
- aqueous
- cellulose
- 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 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 5
- 239000001117 sulphuric acid Substances 0.000 abstract 5
- 235000011149 sulphuric acid Nutrition 0.000 abstract 5
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 4
- 235000011152 sodium sulphate Nutrition 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000001913 cellulose Substances 0.000 abstract 3
- 230000001112 coagulating effect Effects 0.000 abstract 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 3
- 235000009529 zinc sulphate Nutrition 0.000 abstract 3
- 239000011686 zinc sulphate Substances 0.000 abstract 3
- ZGSDJMADBJCNPN-UHFFFAOYSA-N [S-][NH3+] Chemical compound [S-][NH3+] ZGSDJMADBJCNPN-UHFFFAOYSA-N 0.000 abstract 2
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 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 regenerated cellulose threads and films from viscose, there is added to the viscose aqueous ammonium sulphide solution equivalent to 0.5-5 per cent by weight, preferably 0.5-3 per cent by weight, of NH4HS, calculated on the viscose, the viscose is extruded with a gamma value of 40 or more into an aqueous coagulating bath containing sodium sulphate, more than 30 g./l. of zinc sulphate and 40-65 g./l. of sulphuric acid, the threads or films so formed being decomposed to regenerate the cellulose and stretched by 80-120 per cent in a hot aqueous bath containing sodium sulphate, zinc sulphate and dilute sulphuric acid. The viscose preferably has an alkali-cellulose ratio of less than 1 : 1, particularly 0.5 to 0.8 : 1. The coagulating bath preferably contains 160-260 g./l. of sodium sulphate and is preferably at 50-70 DEG C. The stretch bath preferably contains about 2-10 g./l. of sulphuric acid and the stretch is preferably 95-100 per cent. In the example, there is added to viscose, containing 8.5 per cent of cellulose and 5.9 per cent of caustic soda, ammonium sulphide solution chemically equivalent to 0.9 per cent of NH4HS, calculated on the viscose. The viscose, after having been ripened to a gamma value of 42, is spun into an aqueous coagulating bath containing 65 g./l. of sulphuric acid, 235 g./l. of sodium sulphate and 50 g./l. of zinc sulphate and having a temperature of 55 DEG C. and a length of 40 cm., the thread withdrawal speed being 45 m/min. The products are thereafter stretched by 80 per cent in an aqueous bath at 90 DEG C. containing 10 g./l. of sulphuric acid. The process increases the tensile strength and elongation of the threads.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE802013X | 1954-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802013A true GB802013A (en) | 1958-09-24 |
Family
ID=6717557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25014/55A Expired GB802013A (en) | 1954-11-25 | 1955-08-31 | Process for the production of artificial filaments and films from viscose |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2940818A (en) |
| BE (1) | BE540588A (en) |
| FR (1) | FR1143029A (en) |
| GB (1) | GB802013A (en) |
| NL (2) | NL85456C (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2077412A (en) * | 1930-06-04 | 1937-04-20 | Eugene J Lorand | Process for the preparation of a molded cellulose foam from viscose and product thereof |
| US2284028A (en) * | 1939-09-26 | 1942-05-26 | Ubbelohde Leo | Dry spinning process |
| US2506249A (en) * | 1943-04-02 | 1950-05-02 | American Enka Corp | Process for manufacturing artificial chamois |
| BE515618A (en) * | 1947-04-26 | |||
| US2648611A (en) * | 1947-11-19 | 1953-08-11 | American Viscose Corp | Addition of urea to viscose |
| US2593466A (en) * | 1948-07-16 | 1952-04-22 | Ind Rayon Corp | Viscose spinning solution |
| US2516316A (en) * | 1949-07-14 | 1950-07-25 | Du Pont | Borax spinning bath |
| NL92810C (en) * | 1949-08-25 | |||
| US2732279A (en) * | 1951-12-07 | 1956-01-24 | Shozo tachikawa | |
| US2884332A (en) * | 1953-04-30 | 1959-04-28 | Saul & Co | Printing of textile materials and preparations therefor |
| US2796319A (en) * | 1954-04-02 | 1957-06-18 | Schweizerische Viscose | Viscose spinning process |
| US2772444A (en) * | 1954-08-12 | 1956-12-04 | Du Pont | Composition comprising a polyhalogenated ethylene polymer and viscose and process of shaping the same |
| US2892729A (en) * | 1954-11-03 | 1959-06-30 | American Viscose Corp | Process of producing viscose rayon |
-
0
- NL NL200061D patent/NL200061A/xx unknown
- NL NL85456D patent/NL85456C/xx active
- BE BE540588D patent/BE540588A/xx unknown
-
1955
- 1955-08-24 FR FR1143029D patent/FR1143029A/en not_active Expired
- 1955-08-31 GB GB25014/55A patent/GB802013A/en not_active Expired
- 1955-10-25 US US542766A patent/US2940818A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1143029A (en) | 1957-09-25 |
| US2940818A (en) | 1960-06-14 |
| NL200061A (en) | 1900-01-01 |
| NL85456C (en) | 1900-01-01 |
| BE540588A (en) | 1900-01-01 |
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