GB1304408A - - Google Patents
Info
- Publication number
- GB1304408A GB1304408A GB2303170A GB2303170A GB1304408A GB 1304408 A GB1304408 A GB 1304408A GB 2303170 A GB2303170 A GB 2303170A GB 2303170 A GB2303170 A GB 2303170A GB 1304408 A GB1304408 A GB 1304408A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coagulating
- filament
- solution
- spinning
- bath
- 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
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
1304408 Non-circular acrylic filaments JAPAN EXLAN CO Ltd 12 May 1970 [12 May 1969] 23031/70 Heading B5B An acrylic filament of non-circular crosssection is made by extruding a spinning solution of an acrylic polymer consisting of polyacrylonitrile or an acrylonitrile copolymer containing at least 70% by weight of acrylo. nitrile units and at least one other ethylenically unsaturated monomer copolymerizable with acrylonitrile through a spinneret orifice into air or into an inert gaseous medium which does not coagulate the spinning solution and then into a coagulating bath, said spinneret orifice comprising one rectangular slot or a plurality of rectangular slots connected to each other about a common point and extending radially therefrom. Fig. 2 shows suitable spinnerets. Desirably, the viscosity of the spinnirg solution at the time of the extrusion, the ratio of the major and minor axes of the rectangular slots, and the distance between the lower surface of the spinneret and the upper surface of the coagulating bath are selected within the three dimensional range having peripheries defined by the points a to u shown in Fig. 1. Conventional spinning solvents and coagulating baths are used; the use of sodium thiocyanate solutions is exemplified. In Fig. 3, the spinning solution is extruded through spinneret 1, having orifices as in Fig. 2, and passes through an inert gas or air gap into coagulating bath 3. The gel filament 10 is removed by godet roller 4, washed with water at rollers 5, subjected to primary thermal stretching in bath 6 and dried on drying roller 7. The filament so obtained is subjected to secondary stretching in chamber 8, into which steam is introduced, and heat-treated under dry heat with roller 9. Fig. 4 shows a flowing bath type spinning system, which enables spinning velocity to be increased, facilitating the production of filaments of low denier. Coagulating solution is fed through feed pipe 14, near the bottom of the jacket 15, so that the level of the coagulating bath remains constant. Spinning solution extruded through spinneret 1 passes through the inert gas or air gap into the funnel 12 of the coagulating bath and the formed filament is moved downwardly together with the coagulating solution through the tube 13 and into the coagulating tank 16. The filament 19 is removed from the tank by godet roller 17, and is then washed and treated as above. Excess coagulant is removed through discharge pipe 18 and recovered.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3675569 | 1969-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1304408A true GB1304408A (en) | 1973-01-24 |
Family
ID=12478541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2303170A Expired GB1304408A (en) | 1969-05-12 | 1970-05-12 |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU1456670A (en) |
BE (1) | BE750210A (en) |
DE (1) | DE2023198A1 (en) |
FR (1) | FR2047653A5 (en) |
GB (1) | GB1304408A (en) |
NL (1) | NL7006778A (en) |
ZA (1) | ZA702622B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0416789A2 (en) * | 1989-09-05 | 1991-03-13 | Toray Industries, Inc. | Noncircular cross-section carbon fibres, process for producing the same and composite containing them |
WO2018007847A1 (en) * | 2016-07-02 | 2018-01-11 | Reliance Industries Limited | A spinneret plate for extruding fibers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5134488B2 (en) * | 1973-07-05 | 1976-09-27 | ||
DE3340661C2 (en) * | 1983-11-10 | 1991-03-07 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Shaving head for a dry shaver with a curved shaving foil |
CN114836841A (en) * | 2022-05-17 | 2022-08-02 | 中复神鹰碳纤维股份有限公司 | Method for directly preparing low-titer protofilament after dry-jet wet spinning and drying |
-
1970
- 1970-04-20 ZA ZA702622A patent/ZA702622B/en unknown
- 1970-05-01 AU AU14566/70A patent/AU1456670A/en not_active Expired
- 1970-05-11 NL NL7006778A patent/NL7006778A/xx unknown
- 1970-05-11 BE BE750210D patent/BE750210A/en unknown
- 1970-05-12 GB GB2303170A patent/GB1304408A/en not_active Expired
- 1970-05-12 FR FR7017238A patent/FR2047653A5/fr not_active Expired
- 1970-05-12 DE DE19702023198 patent/DE2023198A1/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0416789A2 (en) * | 1989-09-05 | 1991-03-13 | Toray Industries, Inc. | Noncircular cross-section carbon fibres, process for producing the same and composite containing them |
EP0416789A3 (en) * | 1989-09-05 | 1991-09-18 | Toray Industries, Inc. | Noncircular cross-section carbon fibres, process for producing the same and composite containing them |
WO2018007847A1 (en) * | 2016-07-02 | 2018-01-11 | Reliance Industries Limited | A spinneret plate for extruding fibers |
Also Published As
Publication number | Publication date |
---|---|
FR2047653A5 (en) | 1971-03-12 |
BE750210A (en) | 1970-11-12 |
AU1456670A (en) | 1971-11-04 |
DE2023198A1 (en) | 1971-01-07 |
ZA702622B (en) | 1971-05-27 |
NL7006778A (en) | 1970-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |