GB1074328A - Method of manufacturing polyvinyl alcohol filaments - Google Patents
Method of manufacturing polyvinyl alcohol filamentsInfo
- Publication number
- GB1074328A GB1074328A GB50136/63A GB5013663A GB1074328A GB 1074328 A GB1074328 A GB 1074328A GB 50136/63 A GB50136/63 A GB 50136/63A GB 5013663 A GB5013663 A GB 5013663A GB 1074328 A GB1074328 A GB 1074328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyvinyl alcohol
- aqueous solution
- water
- film
- swollen
- 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
- D01F6/14—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 alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
1,074,328. Wet spinning polyvinyl alcohol filaments. KURASHIKI RAYON KABUSHIKI KAISHA. Dec. 19, 1963 [Jan. 7, 1963], No. 50136/63. Heading B5B. The production of polyvinyl alcohol filaments by wet spinning an aqueous solution of polyvinyl alcohol into an aqueous solution of an alkali metal hydroxide is characterized in that the spinning is effected at a temperature below 50‹ C., that the concentration of the aqueous solution of caustic alkali is within the range 10 to 30% and that the PVA is of such a nature that the " swelling degree "of a film of the PVA made at 30‹ C. in water at 30‹ C. is less than 2-0. The swelling degree is defined as the ratio of the difference between the weight of the water-swollen film and the weight of the film dried after having been swollen to the weight of the film dried after having been swollen. The alkali metal hydroxide may be caustic soda or caustic potash. The filaments may be stretched (e.g. at a stretch ratio of 3À0) after leaving the coagulating bath, neutralized with an aqueous solution containing sodium sulphate and sulphuric acid, washed with water, dried, heat set in air at constant length at 230‹ C., crimped, cut into staple fibres and acetalized in a solution of benzaldehyde and sulphuric acid in a mixture of methanol and water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP68263 | 1963-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1074328A true GB1074328A (en) | 1967-07-05 |
Family
ID=11480512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB50136/63A Expired GB1074328A (en) | 1963-01-07 | 1963-12-19 | Method of manufacturing polyvinyl alcohol filaments |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3365527A (en) |
| DE (1) | DE1494640A1 (en) |
| GB (1) | GB1074328A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3852402A (en) * | 1969-11-25 | 1974-12-03 | S Tanaka | Process for the preparation of polyvinyl alcohol fibers |
| US4478971A (en) * | 1983-07-08 | 1984-10-23 | Shakespeare Company | High temperature extruded polyvinyl alcohol monofilament and process for the preparation thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2990235A (en) * | 1949-05-18 | 1961-06-27 | Air Reduction | Process of improving the heat and water resistance of polyvinyl alcohol fibers with lower aliphatic alcohol vapors or superheated steam and optionally acetalizing said fibers |
| US2642333A (en) * | 1949-07-26 | 1953-06-16 | Omni Products Corp | Method of spinning polyvinyl alcohol fibers |
| US3032385A (en) * | 1958-04-12 | 1962-05-01 | Air Reduction | Process of wet spinning polyvinyl alcohol |
| US3167604A (en) * | 1959-04-13 | 1965-01-26 | Kanegafuchi Spinning Co Ltd | Process for the production of fibrous products consisting of polyvinyl alcohol or its derivatives |
| US3137673A (en) * | 1959-07-16 | 1964-06-16 | Kurashiki Rayon Co | Process of making polyvinyl alcohol fibers exhibiting improved dyeability by incorporating therein a water insoluble polymer containing basic nitrogen |
-
1963
- 1963-12-19 GB GB50136/63A patent/GB1074328A/en not_active Expired
- 1963-12-30 US US334629A patent/US3365527A/en not_active Expired - Lifetime
-
1964
- 1964-01-07 DE DE19641494640 patent/DE1494640A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1494640A1 (en) | 1969-04-24 |
| US3365527A (en) | 1968-01-23 |
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