GB779805A - 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
- GB779805A GB779805A GB2501255A GB2501255A GB779805A GB 779805 A GB779805 A GB 779805A GB 2501255 A GB2501255 A GB 2501255A GB 2501255 A GB2501255 A GB 2501255A GB 779805 A GB779805 A GB 779805A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- viscose
- bath
- threads
- sulphuric acid
- 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
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- 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
- 229920002678 cellulose Polymers 0.000 abstract 4
- 239000001913 cellulose Substances 0.000 abstract 4
- 239000001117 sulphuric acid Substances 0.000 abstract 4
- 235000011149 sulphuric acid Nutrition 0.000 abstract 4
- 150000001875 compounds Chemical class 0.000 abstract 3
- 230000001112 coagulating effect Effects 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
- 239000003513 alkali Substances 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 150000004982 aromatic amines Chemical class 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc 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
Artificial threads and fibres are produced from viscose of gamma value not below 42 to which has been added shortly before extrusion 0.06 to 0.4, preferably 0.12, per cent by weight (based on the viscose) of a complex compound of the formula [Me(X)6]An, where Me represents Fe, Zn, Cr, Cd or Sn, X represents an alkyl or alkanol amine or aryl amine, and An represents Cl, SO4 or NO3, by extruding the viscose into an aqueous coagulating bath containing 40-65 g./l. of sulphuric acid and 30-50 g./l. of zinc sulphate, and stretching the threads or films so formed by 80-120 per cent in a hot aqueous bath containing 2-10 g./l. of sulphuric acid. The complex compound may be (1) <FORM:0779805/IV(a)/1> The viscose preferably contains 7-8 and 5-7 per cent of cellulose and caustic soda respectively. The coagulating bath is preferably at 45-70 DEG C. and preferably contains 160-260 g./l. of sodium sulphate. The withdrawal speed is preferably 40-60 m./min. and the length of travel in the bath at least 30 cm. In the second or stretch bath the products are preferably stretched by 95-100 per cent at a temperature over 90 DEG C. In an example, viscose prepared from alkali cellulose which has been xanthated with 42 per cent by weight of carbon bisulphide (based on cellulose) and which contains 7.3 and 5.5 per cent of cellulose and caustic soda respectively, is mixed, 5 hours before being spun, with 0.1 per cent by weight of complex compound (1) and spun at a gamma value of 45 into a bath containing 49 g./l. of sulphuric acid, 200 g./l. of sodium sulphate and 39 g./l. of zinc sulphate. The length of travel of the threads in the bath is 70 cm. and the threads are then stretched 100 per cent in a second bath containing 6 g./l. of sulphuric acid at 90 DEG C. The products of the invention have increased strength and elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2501255A GB779805A (en) | 1955-08-31 | 1955-08-31 | Process for the production of artificial threads and films from viscose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2501255A GB779805A (en) | 1955-08-31 | 1955-08-31 | Process for the production of artificial threads and films from viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB779805A true GB779805A (en) | 1957-07-24 |
Family
ID=6687282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2501255A Expired GB779805A (en) | 1955-08-31 | 1955-08-31 | Process for the production of artificial threads and films from viscose |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB779805A (en) |
-
1955
- 1955-08-31 GB GB2501255A patent/GB779805A/en not_active Expired
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