GB836762A - An improved process for the manufacture of threads, fibres and films from viscose, as well as the products thus obtained - Google Patents
An improved process for the manufacture of threads, fibres and films from viscose, as well as the products thus obtainedInfo
- Publication number
- GB836762A GB836762A GB34356/58A GB3435658A GB836762A GB 836762 A GB836762 A GB 836762A GB 34356/58 A GB34356/58 A GB 34356/58A GB 3435658 A GB3435658 A GB 3435658A GB 836762 A GB836762 A GB 836762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- weight
- cellulose
- cation
- threads
- 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
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, films and like products are made by extruding into an acid spinbath containing at least 2% by weight of a soluble zinc salt, and preferably sulphuric acid, viscose containing an ethoxylated cation-active quaternary ammonium compound and a polyepoxy ethane in the relative proportions of 40-80% by weight of the former to 60-20% by weight of the latter. The cation-active compound has the general formula <FORM:0836762/IV (a)/1> where R1 and R2 represent preferably alkyl radicals, R1 preferably containing 6 or more carbon atoms and R2 preferably containing 1-3 carbon atoms; Z represents an anion such as hydroxide, halide, sulphate or acetate; x and y are whole numbers whose sum may be up to 50 or more; and n is 2-4. R1 may be derived from coconut oil or soya bean oil or may be octadecyl, n may be 2, x+y may be 2, 10 or 15 and Z may be chlorine. The proportion of cation-active compound in the viscose may be 0.5 to 5% by weight, based on the cellulose in the viscose, and the total proportion of cation-active compound plus polyepoxy ethane in the viscose is preferably at least 1% and may be over 2%. The molecular weight of the polyepoxy ethane is preferably 1500-4500. The zinc salt in the spinning bath is preferably zinc sulphate in the proportion of 3 to 5%. The sulphuric acid content of the spin bath is preferably below 7% by weight. The viscose preferably contains 5.5-8% of cellulose and 4-6% of sodium hydroxide and preferably has an ammonium chloride salt point of 10 to 18. After being withdrawn from the spin bath the threads may be stretched in excess of 50% in a weakly acidic second bath at a temperature above 80 DEG C. In an example, viscose containing 7.5% of cellulose, 5.7% of sodium hydroxide, 36% of carbon bisulphide (based on the cellulose), 1% (based on the cellulose) of a cation-active compound in which R1 is a saturated straight chain hydrocarbon radical containing 8-18 carbon atoms, R2 is methyl, n is 2, x+y=15 and Z is chlorine, and 1% (based on cellulose) of a polyexpoxy ethane having an average molecular weight of about 4000, is spun at a salt-point of 14-16 into an aqueous spin bath at 65 DEG C. containing 4.8% by weight of sulphuric acid, 12% of sodium sulphate and 3.5% of zinc sulphate. Threads produced according to the invention have a total skin character and are improved with respect to retention of tensile strength after plying to form tyre cord.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US699516A US3026170A (en) | 1957-11-29 | 1957-11-29 | Manufacture of viscose rayon |
Publications (1)
Publication Number | Publication Date |
---|---|
GB836762A true GB836762A (en) | 1960-06-09 |
Family
ID=24809665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34356/58A Expired GB836762A (en) | 1957-11-29 | 1958-10-27 | An improved process for the manufacture of threads, fibres and films from viscose, as well as the products thus obtained |
Country Status (3)
Country | Link |
---|---|
US (1) | US3026170A (en) |
BE (1) | BE572234A (en) |
GB (1) | GB836762A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL292282A (en) * | 1962-05-04 | 1900-01-01 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
BE516903A (en) * | 1949-08-25 | |||
BE499517A (en) * | 1950-01-23 | |||
NL94986C (en) * | 1951-05-29 | |||
BE508100A (en) * | 1951-12-07 | |||
US2759975A (en) * | 1952-05-28 | 1956-08-21 | Gen Aniline & Film Corp | Mixed alkyl-benzyl-alkylol quaternary ammonium salts |
US2937922A (en) * | 1954-03-24 | 1960-05-24 | Rayonier Inc | Viscose process |
US2852334A (en) * | 1954-11-03 | 1958-09-16 | American Viscose Corp | Method of producing viscose rayon |
US2860480A (en) * | 1956-04-18 | 1958-11-18 | Du Pont | Regenerated cellulose structures and process for producing them |
-
0
- BE BE572234D patent/BE572234A/xx unknown
-
1957
- 1957-11-29 US US699516A patent/US3026170A/en not_active Expired - Lifetime
-
1958
- 1958-10-27 GB GB34356/58A patent/GB836762A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE572234A (en) | |
US3026170A (en) | 1962-03-20 |
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