AT397392B - SPIDER NOZZLE - Google Patents
SPIDER NOZZLE Download PDFInfo
- Publication number
- AT397392B AT397392B AT0272489A AT272489A AT397392B AT 397392 B AT397392 B AT 397392B AT 0272489 A AT0272489 A AT 0272489A AT 272489 A AT272489 A AT 272489A AT 397392 B AT397392 B AT 397392B
- Authority
- AT
- Austria
- Prior art keywords
- spinneret
- capillaries
- plate
- holes
- platelets
- Prior art date
Links
- 241000239290 Araneae Species 0.000 title 1
- 238000009987 spinning Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 7
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010970 precious metal Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 239000007779 soft material Substances 0.000 claims 2
- 239000012634 fragment Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical group ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
- D01D4/027—Spinnerettes containing inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nozzles (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Magnetic Heads (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Continuous Casting (AREA)
- Artificial Filaments (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Threshing Machine Elements (AREA)
- Coating Apparatus (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
AT397392BAT397392B
Die Erfindung betrifft eine Spinndüse mit einem Düsenkopf, der vorzugsweise mit Beheizungskanälen zur Temperierung versehen ist, und einer Spinnplatte, die aus einer stabilen Trägerplatte besteht, in der Löcher vorgesehen sind, in denen Plättchen eingesetzt oder eingepreßt sind.The invention relates to a spinneret with a nozzle head, which is preferably provided with heating channels for temperature control, and a spinning plate, which consists of a stable carrier plate, in which holes are provided in which plates are inserted or pressed.
Spinndüsen werden für die Erzeugung von Fasern benötigt, wobei der Ausgangsstoff der Spinnmasse aus organischem oder anorganischem Material besteht. Das fließ* bzw. pumpfähige Material, welches zumeist eine sehr hohe Viskosität besitzt, wird durch die unterschiedlich ausgeformten Düsenkapillaren gepreßt und anschließend, je nach Verfahren, in speziell dafür ausgerichteten Spinn- und Nachbehandlungsschritten zu Fasern verfestigtSpinning nozzles are required for the production of fibers, the starting material of the spinning mass consisting of organic or inorganic material. The flowable or pumpable material, which usually has a very high viscosity, is pressed through the differently shaped nozzle capillaries and then, depending on the process, solidified into fibers in specially designed spinning and post-treatment steps
Von einer guten Spinndüse erwartet man Qualitätsmerkmale, wie Qualität der Bohrungen (Maßgenauigkeit), Glätte der Bohirlochwandungen, Scharfkantigkeit des Bohrlochaustrittes, Glätte des Düsenbodens, Korrosionsbeständigkeit und speziell ausgeformte Spinnkanäle. Nicht zuletzt ist die notwendige Festigkeit der Spinndüse zu erwähnen, da die Spinndüse beim Verspinnen der Masse unter enormer Druckbeanspruchung steht Speziell beim Verspinnen von hochviskosen Celluloselösungsspinnmassen ist der Einsatz von Spinndüsen- bzw. Spinndüsenmaterialien mit hoher Festigkeit notwendig, da Spinndrücke bis 200 bar auftreten können.A good spinneret is expected to have quality features such as the quality of the bores (dimensional accuracy), smoothness of the bohemian hole walls, sharp edges of the hole exit, smoothness of the nozzle bottom, corrosion resistance and specially shaped spinning channels. Last but not least, the necessary strength of the spinneret should be mentioned, since the spinneret is subjected to enormous pressure when spinning the mass. Especially when spinning highly viscous cellulose solution spinning masses, the use of spinneret or spinneret materials with high strength is necessary, since spinning pressures of up to 200 bar can occur.
Diese Probleme treten bei Celluloselösungen, die nach dem NMMO-Verfahren hergestellt sind, besonders auf. Dieses Verfahren ist z. B. aus den Beispielen der DE-OS 29 13 589 bekannL NMMO steht dabei für N-Methylmorpholin-N-oxid, ein tertiäres Amin-N-oxid, das als Lösungsmittel für Cellulose wirkt Aufgrund der hohen Spinnviskositäten müssen Spinndüsen mit verstärkten Spinnplatten eingesetzt werden.These problems occur particularly with cellulose solutions which are produced by the NMMO process. This method is e.g. B. from the examples of DE-OS 29 13 589 known NMMO stands for N-methylmorpholine-N-oxide, a tertiary amine-N-oxide, which acts as a solvent for cellulose. Because of the high spinning viscosities, spinnerets with reinforced spinning plates must be used .
Anderseits besteht die Tendenz, die Dichte der Kapillaren der Spinndüsen zu erhöhen, um die Leistung pro Flächeneinheit der Spinnstelle zu erhöhen. Das Problem, das dabei auftritt, besteht darin, daß die Fäden dazu neigen, untereinander zu verkleben.On the other hand, there is a tendency to increase the capillary density of the spinnerets in order to increase the performance per unit area of the spinning station. The problem that arises is that the threads tend to stick together.
Um die Dichte der Kapillaren trotzdem erhöhen zu können, muß daher die Klebrigkeit der Fäden verringert werden. Das kann dadurch verwirklicht werden, daß auf die Oberfläche der frisch extrudierten Fäden eine nicht lösende Flüssigkeit aufgebracht wird, um die Wirkung des Lösungsmittels herabzusetzen (vgl. die DE-AS 28 44 163). Außerdem kann dem tertiären Aminoxid ein Polyalkylenether, insbesondere Polyethylenglykol, zugesetzt werden (vgl. die DD-PS 218 121).In order to still be able to increase the density of the capillaries, the stickiness of the threads must be reduced. This can be achieved by applying a non-solvent liquid to the surface of the freshly extruded threads in order to reduce the effect of the solvent (cf. DE-AS 28 44 163). In addition, a polyalkylene ether, in particular polyethylene glycol, can be added to the tertiary amine oxide (cf. DD-PS 218 121).
Es besteht somit Bedarf an einer Spinndüse mit relativ großem Durchmesser und hoher Kapillardichte und daraus resultierender hoher Anzahl an Kapillaren, um Celluloselösung wirtschaftlich zu verspinnen. Gleichzeitig soll die Spinndüse hohen Drücken (bis zu 130 bar) standhalten.There is therefore a need for a spinneret with a relatively large diameter and high capillary density and the resulting high number of capillaries in order to economically spin cellulose solution. At the same time, the spinneret should withstand high pressures (up to 130 bar).
Die bekannten Spinndüsen weisen zwar zum Teil hohe Kapillardichten auf, halten aber hohen Spinndrücken nicht stand: die Spinnplatte wölbt sich oder platzt. Solche Düsen werden im Viskoseprozeß eingesetztThe known spinnerets do sometimes have high capillary densities, but they cannot withstand high spinning pressures: the spinning plate bulges or bursts. Such nozzles are used in the viscose process
Anderseits sind Spinndüsen bekannt, die aus speziellen Stahltypen gefertigt sind, die hoch beanspruchbar sind. Derartige Spinndüsen werden beim Trockenspinnverfahren für Kunststoffschmelzen verwendet. Diese Düsenkonstruktion hat wiederum den Nachteil, daß durch das komplizierte Anbringen der Düsenlöcher in der Düsenplatte für die jeweilige Spinnkapillare eine Vorbohrung im relativ harten, aber festen Material notwendig ist, um dann die Kapillare mit feinem Durchmesser anbringen zu können. Durch die im Durchmesser größere Vorbohrung ist nur eine geringere Anzahl von Spinnkapillaren in der Düsenplatte möglich, wodurch sich wiederum eine geringere Kapillardichte ergibt.On the other hand, spinnerets are known that are made from special steel types that can withstand high loads. Such spinnerets are used in the dry spinning process for plastic melts. This nozzle construction in turn has the disadvantage that a pre-drilling in the relatively hard but firm material is necessary for the respective spinning capillary due to the complicated attachment of the nozzle holes in the nozzle plate, in order then to be able to attach the capillary with a fine diameter. Due to the larger diameter of the pilot hole, only a smaller number of spinning capillaries is possible in the nozzle plate, which in turn results in a lower capillary density.
Spinndüsen mit Beheizungskanälen sind aus der US-PS 3 737 506 und aus der US-PS 3 439 382 bekannt Eine Spinndüse der eingangs genannten Art jedoch ohne Beheizungskanäle, ist aus der DE-PS 808 872 bekannL Nachteilig ist dabei jedoch, daß die in die Löcher eingesetzten Edelmetalleinsätze (es handelt sich streng genommen nicht einmal um Plättchen) immer nur eine Kapillare aufweisen.Spinnerets with heating channels are known from US Pat. No. 3,737,506 and from US Pat. No. 3,439,382. A spinneret of the type mentioned at the outset, however, without heating channels, is known from DE-PS 808 872. However, it is disadvantageous that the in the Noble metal inserts inserted into holes (strictly speaking, they are not even platelets) always have only one capillary.
Es ist Aufgabe der vorliegenden Erfindung, eine Spinndüse zu schaffen, die einerseits hohen Spinndrücken standhält und anderseits eine hohe Kapillardichte (Kapillaren/mm^) aufweistIt is an object of the present invention to provide a spinneret which on the one hand withstands high spinning pressures and on the other hand has a high capillary density (capillaries / mm ^)
Diese Aufgabe wird durch eine Spinndüse der eingangs genannten Art erfindungsgemäß dadurch gelöst daß in den Plättchen eine Vielzahl von Kapillaren ausgeführt sind. Es ist dabei zweckmäßig, wenn die Trägerplatte aus Edelstahl und die Plättchen aus einem Material mit geringerer Härte als Stahl, insbesondere aus einem Edelmetall, bestehen. Bevorzugt werden derzeit Gold, Silber und Tantal.This object is achieved according to the invention by a spinneret of the type mentioned in the introduction in that a large number of capillaries are embodied in the platelets. It is expedient if the carrier plate is made of stainless steel and the platelets are made of a material with a lower hardness than steel, in particular of a noble metal. Gold, silver and tantalum are currently preferred.
Erfindungsgemäß wird also eine Trägerplatte verwendet, deren Stärke ausreichend groß bemessen werden kann, sodaß sie hohen Spinndriicken standhält. Sie kann auch aus beliebig festem Material hergestellt sein, weil sie selbst keine Spinnkapillaren aufweist In die Löcher der Trägerplatte sind Plättchen, z. B. Edelmetallplättchen, eingesetzt oder eingepreßt, in denen - bedingt durch die Weichheit des Metalls - relativ einfach die notwendige Anzahl an Spinnkapillaren ohne Vorbohren angebracht werden kann.According to the invention, therefore, a carrier plate is used, the thickness of which can be dimensioned sufficiently large so that it withstands high spinning pressures. It can also be made of any solid material because it itself has no spinning capillaries. B. precious metal platelets, used or pressed in which - due to the softness of the metal - the necessary number of spinning capillaries can be attached relatively easily without pre-drilling.
Vorzugsweise sind die Löcher in der Trägerplatte Stufenbohrungen, wobei sich die Abstufung nahe der Außenfläche der Trägerplatte befindet und der geringere Durchmesser an der Außenfläche der Trägerplatte ist Dadurch wird das eingesetzte bzw. eingepreßte Plättchen zusätzlich gehalten und kann sehr hohen Spinndrücken standhalten.The holes in the carrier plate are preferably stepped bores, the gradation being close to the outer surface of the carrier plate and the smaller diameter on the outer surface of the carrier plate. As a result, the inserted or pressed-in plate is additionally held and can withstand very high spinning pressures.
Schließlich ist es zweckmäßig, wenn an der Innenseite der Trägerplatte eine Lochplatte vorgesehen ist und zwischen der Trägerplatte und der Lochplatte ein Filter angeordnet ist Die Löcher der Lochplatte sind dabei auf die Anordnung der Plättchen abgestimmt, sodaß die Celluloselösung oder Polymerschmelze zweckent- -2-Finally, it is expedient if a perforated plate is provided on the inside of the carrier plate and a filter is arranged between the carrier plate and the perforated plate. The holes in the perforated plate are matched to the arrangement of the plates, so that the cellulose solution or polymer melt is suitable.
Claims (7)
Priority Applications (26)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0272489A AT397392B (en) | 1989-11-29 | 1989-11-29 | SPIDER NOZZLE |
| FI905437A FI92845C (en) | 1989-11-29 | 1990-11-02 | The spinning nozzle |
| CS905427A CZ283858B6 (en) | 1989-11-29 | 1990-11-05 | Spinning nozzle |
| IL96314A IL96314A0 (en) | 1989-11-29 | 1990-11-12 | Spinning nozzle |
| AU66576/90A AU6657690A (en) | 1989-11-29 | 1990-11-13 | Spinning nozzle or spinneret for producing filaments from a flowable material |
| YU217990A YU48011B (en) | 1989-11-29 | 1990-11-15 | FRONT JET |
| CA002030043A CA2030043A1 (en) | 1989-11-29 | 1990-11-15 | Spinning nozzle or spinneret for producing filaments from a flowable material |
| KR1019900018732A KR0157408B1 (en) | 1989-11-29 | 1990-11-19 | Spinning nozzle |
| JP2314505A JPH03174006A (en) | 1989-11-29 | 1990-11-21 | Spinning nozzle |
| BG093282A BG93282A (en) | 1989-11-29 | 1990-11-22 | TRANSMISSION NOZZLE |
| RO146425A RO108011B1 (en) | 1989-11-29 | 1990-11-26 | FILING DUST |
| EP90890308A EP0430926B1 (en) | 1989-11-29 | 1990-11-27 | Spinnerette |
| DK90890308.1T DK0430926T3 (en) | 1989-11-29 | 1990-11-27 | Spinneret |
| DE59009625T DE59009625D1 (en) | 1989-11-29 | 1990-11-27 | Spinneret. |
| AT90890308T ATE127542T1 (en) | 1989-11-29 | 1990-11-27 | SPINNING NOZZLE. |
| ES90890308T ES2024388T3 (en) | 1989-11-29 | 1990-11-27 | SPINNING NOZZLE. |
| PL90287957A PL165105B1 (en) | 1989-11-29 | 1990-11-27 | Pre-chamber nozzle PL PL |
| IE428990A IE69038B1 (en) | 1989-11-29 | 1990-11-28 | Spinning nozzles |
| NO905145A NO176445C (en) | 1989-11-29 | 1990-11-28 | spinneret |
| BR909006022A BR9006022A (en) | 1989-11-29 | 1990-11-28 | FIRE WITH A NOZZLE HEAD |
| SU904831762A RU1838462C (en) | 1989-11-29 | 1990-11-28 | Spinneret |
| PT96019A PT96019A (en) | 1989-11-29 | 1990-11-28 | FIEIRA |
| CN90109549A CN1052155A (en) | 1989-11-29 | 1990-11-29 | Spinneret cap with producing filaments from flowable material |
| TR01107/90A TR27239A (en) | 1989-11-29 | 1990-12-04 | Twist nozzle. |
| GR91300097T GR910300097T1 (en) | 1989-11-29 | 1991-12-10 | Spinnerette |
| PT8495U PT8495U (en) | 1989-11-29 | 1992-05-08 | FIEIRA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0272489A AT397392B (en) | 1989-11-29 | 1989-11-29 | SPIDER NOZZLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA272489A ATA272489A (en) | 1993-08-15 |
| AT397392B true AT397392B (en) | 1994-03-25 |
Family
ID=3539303
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT0272489A AT397392B (en) | 1989-11-29 | 1989-11-29 | SPIDER NOZZLE |
| AT90890308T ATE127542T1 (en) | 1989-11-29 | 1990-11-27 | SPINNING NOZZLE. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT90890308T ATE127542T1 (en) | 1989-11-29 | 1990-11-27 | SPINNING NOZZLE. |
Country Status (24)
| Country | Link |
|---|---|
| EP (1) | EP0430926B1 (en) |
| JP (1) | JPH03174006A (en) |
| KR (1) | KR0157408B1 (en) |
| CN (1) | CN1052155A (en) |
| AT (2) | AT397392B (en) |
| AU (1) | AU6657690A (en) |
| BG (1) | BG93282A (en) |
| BR (1) | BR9006022A (en) |
| CA (1) | CA2030043A1 (en) |
| CZ (1) | CZ283858B6 (en) |
| DE (1) | DE59009625D1 (en) |
| DK (1) | DK0430926T3 (en) |
| ES (1) | ES2024388T3 (en) |
| FI (1) | FI92845C (en) |
| GR (1) | GR910300097T1 (en) |
| IE (1) | IE69038B1 (en) |
| IL (1) | IL96314A0 (en) |
| NO (1) | NO176445C (en) |
| PL (1) | PL165105B1 (en) |
| PT (2) | PT96019A (en) |
| RO (1) | RO108011B1 (en) |
| RU (1) | RU1838462C (en) |
| TR (1) | TR27239A (en) |
| YU (1) | YU48011B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589125A (en) * | 1992-03-17 | 1996-12-31 | Lenzing Aktiengesellschaft | Process of and apparatus for making cellulose mouldings |
| US5939000A (en) * | 1993-05-24 | 1999-08-17 | Acordis Fibres (Holdings) Limited | Process of making cellulose filaments |
| US5984655A (en) * | 1994-12-22 | 1999-11-16 | Lenzing Aktiengesellschaft | Spinning process and apparatus |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5652001A (en) * | 1993-05-24 | 1997-07-29 | Courtaulds Fibres Limited | Spinnerette |
| RU2174565C1 (en) * | 2000-07-17 | 2001-10-10 | Открытое акционерное общество "Чепецкий механический завод" | Spinning nozzle from zirconium-based material |
| DE10043297B4 (en) * | 2000-09-02 | 2005-12-08 | Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. | Process for the production of cellulose fibers and cellulose filament yarns |
| RU2215071C1 (en) * | 2002-05-18 | 2003-10-27 | Открытое акционерное общество "Чепецкий механический завод" | Spinneret for forming of chemical fibers and filaments from solutions |
| AT413545B (en) * | 2003-07-14 | 2006-03-15 | Chemiefaser Lenzing Ag | METHOD FOR THE PRODUCTION OF CELLULOSIC FORM BODIES |
| EP2565303A1 (en) | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusion method |
| EP2565304A1 (en) | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusion method and device |
| CN103352258A (en) * | 2013-07-08 | 2013-10-16 | 常熟市沪联印染有限公司 | Spinneret device with filter screen |
| CN104762671B (en) * | 2015-04-16 | 2017-01-04 | 湖州旭彩高新纤维有限公司 | A kind of fiber heating spinning appts |
| KR102002726B1 (en) | 2018-05-08 | 2019-07-23 | 조승형 | Nozzle fixing device for melt spinning system |
| CN108525282B (en) * | 2018-06-15 | 2024-05-14 | 广东工业大学 | Rehabilitation equipment for elderly with brain atrophy |
| EP3702496A1 (en) | 2019-02-26 | 2020-09-02 | Lenzing Aktiengesellschaft | Mould and method for manufacturing a mould for extruding cellulose moulded bodies |
| ES3053008T3 (en) | 2020-04-22 | 2026-01-16 | Aurotec Gmbh | Production of filaments with controlled gas flow |
| CN118087058A (en) * | 2022-11-17 | 2024-05-28 | 中国石油化工股份有限公司 | A heat-insulating spinning assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE808872C (en) * | 1948-10-02 | 1951-07-19 | Degussa | Spinneret for the production of fully synthetic threads |
| US3439382A (en) * | 1966-01-04 | 1969-04-22 | American Enka Corp | Spinneret assembly for spinning highly viscous polymeric substances |
| US3737506A (en) * | 1970-04-03 | 1973-06-05 | Viscose Suisse Soc D | Process and apparatus for continuous extrusion of highly-viscous melts |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE360000C (en) * | 1920-06-11 | 1922-09-28 | Romuald Kuehnel | Spinnerets and processes for their manufacture |
| BE477016A (en) * | 1946-12-02 | |||
| BE516064A (en) * | 1949-11-23 | |||
| GB1126609A (en) * | 1966-07-20 | 1968-09-11 | Du Pont | Spinneret |
-
1989
- 1989-11-29 AT AT0272489A patent/AT397392B/en not_active IP Right Cessation
-
1990
- 1990-11-02 FI FI905437A patent/FI92845C/en not_active IP Right Cessation
- 1990-11-05 CZ CS905427A patent/CZ283858B6/en not_active IP Right Cessation
- 1990-11-12 IL IL96314A patent/IL96314A0/en unknown
- 1990-11-13 AU AU66576/90A patent/AU6657690A/en not_active Abandoned
- 1990-11-15 YU YU217990A patent/YU48011B/en unknown
- 1990-11-15 CA CA002030043A patent/CA2030043A1/en not_active Abandoned
- 1990-11-19 KR KR1019900018732A patent/KR0157408B1/en not_active Expired - Fee Related
- 1990-11-21 JP JP2314505A patent/JPH03174006A/en active Pending
- 1990-11-22 BG BG093282A patent/BG93282A/en unknown
- 1990-11-26 RO RO146425A patent/RO108011B1/en unknown
- 1990-11-27 ES ES90890308T patent/ES2024388T3/en not_active Expired - Lifetime
- 1990-11-27 DK DK90890308.1T patent/DK0430926T3/en not_active Application Discontinuation
- 1990-11-27 EP EP90890308A patent/EP0430926B1/en not_active Expired - Lifetime
- 1990-11-27 PL PL90287957A patent/PL165105B1/en unknown
- 1990-11-27 DE DE59009625T patent/DE59009625D1/en not_active Expired - Fee Related
- 1990-11-27 AT AT90890308T patent/ATE127542T1/en not_active IP Right Cessation
- 1990-11-28 PT PT96019A patent/PT96019A/en active IP Right Grant
- 1990-11-28 RU SU904831762A patent/RU1838462C/en active
- 1990-11-28 NO NO905145A patent/NO176445C/en unknown
- 1990-11-28 BR BR909006022A patent/BR9006022A/en not_active Application Discontinuation
- 1990-11-28 IE IE428990A patent/IE69038B1/en not_active IP Right Cessation
- 1990-11-29 CN CN90109549A patent/CN1052155A/en active Pending
- 1990-12-04 TR TR01107/90A patent/TR27239A/en unknown
-
1991
- 1991-12-10 GR GR91300097T patent/GR910300097T1/en unknown
-
1992
- 1992-05-08 PT PT8495U patent/PT8495U/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE808872C (en) * | 1948-10-02 | 1951-07-19 | Degussa | Spinneret for the production of fully synthetic threads |
| US3439382A (en) * | 1966-01-04 | 1969-04-22 | American Enka Corp | Spinneret assembly for spinning highly viscous polymeric substances |
| US3737506A (en) * | 1970-04-03 | 1973-06-05 | Viscose Suisse Soc D | Process and apparatus for continuous extrusion of highly-viscous melts |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589125A (en) * | 1992-03-17 | 1996-12-31 | Lenzing Aktiengesellschaft | Process of and apparatus for making cellulose mouldings |
| US5798125A (en) * | 1992-03-17 | 1998-08-25 | Lenzing Aktiengesellschaft | Device for the preparation of cellulose mouldings |
| US5968434A (en) * | 1992-03-17 | 1999-10-19 | Lenzing Aktiengesellschaft | Process of making cellulose moldings and fibers |
| US5939000A (en) * | 1993-05-24 | 1999-08-17 | Acordis Fibres (Holdings) Limited | Process of making cellulose filaments |
| US5951932A (en) * | 1993-05-24 | 1999-09-14 | Acordis Fibres (Holdings) Limited | Process of making cellulose filaments |
| US5984655A (en) * | 1994-12-22 | 1999-11-16 | Lenzing Aktiengesellschaft | Spinning process and apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |