GB878217A - Vinyl polymer textile yarns and filaments and a process for their production - Google Patents
Vinyl polymer textile yarns and filaments and a process for their productionInfo
- Publication number
- GB878217A GB878217A GB1645/58A GB164558A GB878217A GB 878217 A GB878217 A GB 878217A GB 1645/58 A GB1645/58 A GB 1645/58A GB 164558 A GB164558 A GB 164558A GB 878217 A GB878217 A GB 878217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- filaments
- rolls
- roll
- yarn
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/40—Modacrylic fibres, i.e. containing 35 to 85% acrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A solution of a vinyl polymer or copolymer in a solvent boiling below 100 DEG C. is extruded into a coagulating liquid which is miscible with the solvent but does not dissolve the polymer to form filaments containing not more than 20% by weight of residual solvent, and the temperature of any given point along the yarn is increased either (a) in a stepwise manner by causing the filaments to travel in a path in succession over and in contact with a series of two or more rolls, each succeeding roll being heated to a higher temperature than the preceding roll, or (b) in a continuous non-stepwise manner by causing the filaments to travel in a series of helical loops along mutually inclined thread-advancing rolls, one or more of which are heated in such a manner that a temperature gradient is maintained along the roll or rolls, the temperature increasing axially along the direction of travel of the filaments. The temperature of the surface of the first roll when using the stepwise procedure or the temperature of the rolls at the points of initial contact of the filaments with the rolls when using the continuous non-stepwise procedure is maintained at at least 60 DEG C. and not exceeding 5 DEG -20 DEG C. below the fusion temperature of the filaments in the condition in which they are on leaving the coagulating liquid, when they still contain a substantial proportion of solvent. The temperature of the surfaces of the heated rolls is in either case maintained at least 5 DEG C. below the fusion temperature of the filaments throughout the entire temperature gradient, until the temperature of the final roll when using the stepwise procedure, or the temperature at the points of final contact of the filaments with the rolls when using the continuous nonstepwise procedure has reached 135 DEG -190 DEG C., corresponding to a residual solvent content in the filaments of not more than 2% by weight and a fusion temperature of the filaments of at least 150 DEG C. The latter is defined as the temperature at which the contacting filaments become tacky, fuse together and are difficult or impossible to separate by normal handling. It is about the temperature at which the filaments will shrink about 50% under no tension. Preferred polymers contain 40%-75% by weight of acrylonitrile and 25%-60% of another vinyl compound such as vinyl chloride, vinyl acetate or vinylidene chloride, particularly a terpolymer of 68% acrylonitrile, 21% of vinyl chloride, and 11% of vinylidene chloride in acetonitrile solvent. In an example, 1,724 grams of a terpolymer consisting of 69,6% acrylonitrile, 20,4% vinyl chloride, and 10% vinylidene chloride are dissolved with 26 grams of dioctyl tin maleate in 5,250 grams of acetonitrile and the solution spun at 83 DEG C. into a coagulating liquid consistting of 85 parts of water and 15 parts of acetonitrile. The freshly coagulated yarn containing 17,3% of residual solvent, and having a fusion temperature of 100 DEG C. is withdrawn from the bath and passed to and continuously along in a series of helical loops a pair of mutually inclined thread-advancing rolls of which one is internally heated with steam in such a manner that the surface temperature of the roll at the point where the yarn first contacts the roll is 90 DEG C. and that of the other end of the roll is 110 DEG C. At this point the yarn is free from water, contains 5,1% of residual solvent and has a fusion temperature of 185 DEG C. The yarn is then passed to and along a second pair of rolls of which one is heated to a surface temperature at the yarn discharge end of 187 DEG C. The yarn is then stretched 522%, annealed at 220 DEG C. for 0,02 second and allowed to shrink 11,2%. It contains only 0,15% residual solvent. The process of the invention enables continuous filament vinyl polymer yarns to be produced more rapidly than heretofore.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US634888A US2988419A (en) | 1957-01-18 | 1957-01-18 | Process for spinning and drying fibers of a polymer containing a significant amount of acrylonitrile polymerized therein |
Publications (1)
Publication Number | Publication Date |
---|---|
GB878217A true GB878217A (en) | 1961-09-27 |
Family
ID=24545560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1645/58A Expired GB878217A (en) | 1957-01-18 | 1958-01-17 | Vinyl polymer textile yarns and filaments and a process for their production |
Country Status (2)
Country | Link |
---|---|
US (1) | US2988419A (en) |
GB (1) | GB878217A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097415A (en) * | 1959-02-20 | 1963-07-16 | Acrylonitrile fiber and process for | |
US3485913A (en) * | 1965-10-20 | 1969-12-23 | Toho Beslon Co | New method of manufacturing acrylic fibers and the related products |
US3511904A (en) * | 1967-11-16 | 1970-05-12 | Ethicon Inc | Method for the manufacture of collagen tape |
US3511397A (en) * | 1967-11-16 | 1970-05-12 | Ethicon Inc | Method for the manufacture of collagen tape |
US4002809A (en) * | 1970-12-02 | 1977-01-11 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Method of manufacturing acrylic fibers |
US3925524A (en) * | 1972-06-22 | 1975-12-09 | Celanese Corp | Process for the production of carbon filaments |
DE3225266A1 (en) * | 1982-07-06 | 1984-01-12 | Bayer Ag, 5090 Leverkusen | CONTINUOUS DRY SPINNING PROCESS FOR ACRYLNITRILE THREADS AND FIBERS |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733121A (en) * | 1956-01-31 | R in wash liquor | ||
US2244745A (en) * | 1937-08-11 | 1941-06-10 | North American Rayon Corp | Apparatus for drying yarn |
US2697023A (en) * | 1950-04-29 | 1954-12-14 | Eastman Kodak Co | Spinning acrylonitrile |
US2622182A (en) * | 1951-06-23 | 1952-12-16 | American Cyanamid Co | Apparatus for drying continuous filament yarn and the like |
US2692185A (en) * | 1951-09-27 | 1954-10-19 | Ind Rayon Corp | Wet spinning of acrylonitrile polymers |
US2811409A (en) * | 1952-12-31 | 1957-10-29 | Eastman Kodak Co | Spinning of acrylonitrile polymer fibers |
-
1957
- 1957-01-18 US US634888A patent/US2988419A/en not_active Expired - Lifetime
-
1958
- 1958-01-17 GB GB1645/58A patent/GB878217A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2988419A (en) | 1961-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4344908A (en) | Process for making polymer filaments which have a high tensile strength and a high modulus | |
US3133138A (en) | Stretching and heat crystallization of poly(meta-phenylene isophthalamide) fibers | |
US2307846A (en) | Production of synthetic structures | |
JPS648732B2 (en) | ||
GB714167A (en) | Improvements in or relating to crimping acrylonitrile polymer filaments | |
US3608024A (en) | Method for producing crimped conjugated split fiber | |
JPS6324088B2 (en) | ||
US2948581A (en) | Method of producing a synthetic fiber | |
GB878217A (en) | Vinyl polymer textile yarns and filaments and a process for their production | |
US2790700A (en) | Controlled coagulation of salt-spun polyacrylonitrile | |
US3030173A (en) | Process for the uniform preparation of shaped structures such as filaments or foils from high-melting linear polyesters | |
US2926065A (en) | Method of shrinkproofing oriented, crystallized polyethylene terephthalate yarns at elevated temperatures by heat tensioning and heat relaxing said yarns | |
GB1037381A (en) | Producing artificial filamentary material from condensation polymers | |
US3073669A (en) | Method for producing shaped articles from polymers and copolymers of acrylonitrile | |
US2822237A (en) | Process for producing filament of vinyl chloride polymer | |
US3112551A (en) | Process for the manufacture of crimped filament yarns | |
US2917805A (en) | Method for curling highly crystalline synthetic fibers and filaments | |
US3828014A (en) | High shrinkage threads,yarn and fibers from acrylonitrile polymers | |
US3097054A (en) | Method of making high-shrink textile fibers | |
US3083071A (en) | Treatment of synthetic fiber tow | |
US2883260A (en) | Production of monofilament of a polymer or copolymer of acrylonitrile | |
DE1289945B (en) | Process for the production of fibers and threads from polyvinyl chloride | |
DE1286684B (en) | Process for the production of threads, fibers or films by wet or dry spinning of an acrylonitrile polymer mixture | |
US2869972A (en) | Method of treating yarns and filaments and products produced thereby | |
US2529541A (en) | Knitted structure and method of producing said structure |