GB2301060A - Device for impementing a dry/wet spinning process - Google Patents
Device for impementing a dry/wet spinning process Download PDFInfo
- Publication number
- GB2301060A GB2301060A GB9617016A GB9617016A GB2301060A GB 2301060 A GB2301060 A GB 2301060A GB 9617016 A GB9617016 A GB 9617016A GB 9617016 A GB9617016 A GB 9617016A GB 2301060 A GB2301060 A GB 2301060A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spinning
- container
- bath liquid
- filaments
- spinneret
- 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.)
- Withdrawn
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
- D01D5/06—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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention relates to a container for spinning bath liquid to implement a dry/wet spinning process in which a spinning compound is extruded through a spinning nozzle with a high-density of apertures into a gaseous medium, forming a sheaf of filaments which are drawn through the gaseous medium into the spinning bath liquid, characterized in that there is in the container a deflector for bundling and drawing the filaments which can be pivoted in the vertical plane.
Description
DEVICE FOR CARRYING OUT A DRY/WET-SPINNING PROCESS
The invention is concerned with a device for carrying out a dry/wet-spinning process.
In general terms, the technique of the dry/wet-spinning process consists in that dope is extruded through a forming tool, such as a spinneret, into a medium which is nonprecipitating for the dope, such as air or an inert gas, whereby, when a spinneret is used, filaments are produced which are stretched in this medium and subsequently conducted into a spinning bath liquid (precipitation bath), wherein the filaments coagulate.
From WO 93/19230 of the applicant, a process and a device for the production of cellulose fibres is known whereby a solution of cellulose in a tertiary amine-oxide is moulded in hot state, and the moulded solution is introduced through a gaseous medium (air) into the precipitation bath to precipitate the cellulose therein contained, the hot, moulded solution being cooled before introducing it into the precipitation bath. The cooling is carried out immediately after the moulding, consisting preferably in that air is blown horizontally to the cellulose moulded body. By means of the process according to that invention the cellulose solution can be spun with a high filament density, preventing the adhesion between individual filaments after being extruded from the spinneret.
DD-A - 218 121 is also concerned with a dry/wet-spinning process for the production of cellulose fibres from cellulose solutions in tertiary amine-oxides. Also according to this process, the cellulose solution is spun into an air gap, i.e.
the space between the spinneret and the surface of the spinning bath liquid, stretched and conducted into an aqueous precipitation bath. In DD-A - 218 121 it is mentioned that the air gap may be reduced without any negative effects on the spinning safety, when before spinning a polyalkylene ether is added to the cellulose solution. A small air gap is advantageous, since the risk of an adhesion between the individual fresh extruded filaments is reduced.
In EP-A - 0 574 870, a dry/wet-spinning process for processing solutions of cellulose in tertiary amine-oxides is described, pointing out the advantage of a small air gap.
According to the specification of this patent application, this spinning process can be carried out providing a small air gap and a high number of spinning holes per surface unit.
It is maintained that inspite of these conditions, the adhesion between the individual filaments during the spinning operation can be prevented. It is recommended to carry out the contacting of the spun filaments with the spinning bath liquid in a spinning funnel. Spinning bath liquid is conducted through this spinning funnel in parallel flow to the filaments. The axis of the spinning funnel is substantially vertical to the plane of the spinneret, and the flow of the spinning bath liquid is directed downwards from above, the flow originating generally from the gravitational fall of the spinning bath liquid.
According to EP-A - 0 574 870, the drawing and stretching of the fresh extruded filaments is attained in that the filaments are accelerated substantially to their drawing rate by the spinning bath liquid flowing through the spinning funnel.
This known spinning device has the disadvantage that the funnel pipe of the spinning funnel sets an upper limit to the filament bundles to be conducted therethrough with regard to its total section, due to its relatively small diameter.
Additionally, this limit is set at an unsatisfactorily low level for an industrial-scale realization of the process.
Thus, according to the experience of the present applicant, when employing a diameter of 6 mm, as exemplified in EP-A - 0 574 870, it is only possible to conduct a filament bundle consisting of not more than 100 filaments through the funnel, since spinning bath liquid also has to be transported through the funnel. This means that when such a spinning funnel is used, only a spinneret of not more than 100 spinning holes may be employed.
On the other hand, when a wide spinneret having thousands of spinning holes is used, such as described for instance in the
Austrian Patent Application A 2724/89 of the applicant, the funnel pipe has to be appropiately wider and thus a lot more spinning bath liquid is discharged and has to be circulated.
This high throughput of spinning bath liquid causes turbulent flows in the spinning bath, interfering with the dry/wetspinning process.
In GB-A - 1,017,855, a device for dry/wet-spinning of synthetic polymers is described, recommending also the use of a spinning funnel, wherethrough spinning bath liquid is allowed to flow in parallel flow to the extruded fibres. The spinneret is located approximately 0,5 cm above the spinning bath surface.
It is the object of the present invention to provide a container for spinning bath liquid whereby it is possible to perform a dry/wet-spinning process with high spinning safety and without using a spinning funnel, simultaneously: (a) to provide a small drawing space (air gap) and (b) to use spinnerets having a high hole density and allowing
for a high dope throughput.
By using the device according to the invention, a turbulent flow in the spinning bath should be avoided. Moreover, the device according to the invention should allow the use of spinnerets of the most varied sizes without having to modify the device, i.e. in such a way that the device can be adjusted readily to each spinneret.
The container according to the invention for the spinning bath liquid for carrying out a dry/wet-spinning process, in which process the dope is extruded into a gaseous medium by means of a spinneret having a high spinning hole density, a bundle of filaments being produced which are introduced through the gaseous medium into the spinning bath liquid while being drawn, is characterized in that a diverting means for bundling and diverting the filaments, which means is vertically movable, is provided within the container.
Thus, in the container according to the invention, the filament bundle is not bundled by a spinning funnel, as described in EP-A - 0 574 870, but by a diverting means.
It has been hown that it is of vital importance for the spinning safety in the dry/wet-spinning process that the drawing angle in the air gap is as small as possible and preferably does not exceed 20 . As drawing angle, the angle formed by the outermost filament or edge filament of a bundle of filaments being delivered by the spinneret with the vertical line to the spinneret plane is to be understood. By means of the device according to the invention, the same drawing angle can be set, regardless of the size of the spinneret used. Thus the risk of an adhesion between individual filaments in the space between the spinneret and the surface of the spinning bath can be minimized and the spinning safety can be increased.
A preferred embodiment of the container according to the invention consists in that the diverting means has a substantially cylindrical body terminated by two substantially circular flanks, the planes formed by the flanks preferably including an angle of from 7" to 30 . This embodiment is particularly appropiate for starting the spinning operation, as will be explained below.
Another preferred embodiment of the container according to the invention exhibits the following additional characteristics: (a) an inlet for the introduction of spinning bath liquid
into the container, said inlet being provided at the
lower end of the container, (b) an outlet for spinning bath liquid provided at the upper
end of the container.
It has been shown that the container according to the invention is particularly appropriate for the dry/wetspinning of mouldable solutions of cellulose in an aqueous tertiary amine-oxide.
The invention is further concerned with a process for dry/wet-spinning by extruding a dope through a spinneret having a high spinning hole density into a gaseous medium, a bundle of filaments being produced which are introduced into a spinning bath liquid through the gaseous medium while being drawn, bundled and conducted over a diverting means, characterized in that the diverting means is spaced to the spinneret such that the angle formed by the outermost filaments of the filament bundle und the vertical to the spinneret does not exceed 20".
In the process according to the invention, the spinning bath liquid is not conducted in parallel flow to the filaments and thus drawing is not achieved by the cinetic energy of the spinning bath liquid, as will be explained below in more detail.
In the process according to the invention, a mouldable solution of cellulose in an aqueous tertiary amine-oxide is preferably used as a dope.
By means of the drawing, a preferred embodiment of the device according to the invention will be explained in more detail,
Figure 1 showing a general illustration of the dry/wetspinning process, Figure 2 schematically showing a perspective illustration of an embodiment of the container according to the invention and Figure 3 showing the diverting means illustrated in Figure 2.
In Figure 1, 1 denotes a container for the spinning bath liquid, the surface of the spinning bath liquid being indicated by la. During spinning operation, dope is extruded through spinneret 7 and extruded filaments are drawn across the air gap LS into the spinning bath liquid, wherein they coagulate. At the diverting means 2, the coagulated filaments are diverted and drawn diagonally upwards. As the air gap LS, the distance of the bottom of spinneret 7 from the surface la of the spinning bath liquid is defined. The drawing angle defined above is indicated by a.
In Figure 2, reference number 1' denotes a tub-shaped container for spinning bath liquid. The spinning bath liquid is fed through inlet 3 provided at the lower end of the container 1', flowing upwards. When the container is filled, spinning bath liquid will overflow into collecting cup 6 across overflow edge 5 and thus a constant liquid level will be maintained in container 1'.
The spinning bath liquid overflown into collecting cup 6 is discharged through outlet 4 and fed again to the container 1' according to the invention through inlet 3 by means of an external pumping system (not shown). Conveniently, outlet 4 is provided with a filter to filter out possible filament residues.
In order to originate as little turbulent flow as possible in the spinning bath, a baffle plate 10 attached in parallel to the wall of the container (not shown) is provided within container 1' (attachment not shown).
Reference number 7 denotes a spinneret, the filaments delivered being indicated by dotted lines.
A spinneret of preferred use is described in the
International Patent Application WO 93/19230 of the applicant. Reference number 2' denotes a diverting means by means of which the filament bundle is bundled and drawn diagonally upwards (not shown). The diverting means 2' is attached to a movable axis 9 by means of an arm 8. Axis 9 is movably attached at the lateral wall of container 1' and sealed, so that no spinning bath liquid may escape. By rotation of the axis 9, the diverting means 2' can be moved within the container. This rotation may also be carried out by means of an electric motor 11.
Figure 2 shows the lower final position of the diverting means 2', wherein the distance to the surface of the spinning bath liquid is largest. The upper final position of diverting means 2', wherein the distance to the surface of the spinning bath liquid is smallest, is illustrated as a dotted line. In the embodiment of the container according to the invention shown in Figure 2, the maximum angle by which the diverting means is moved is 65g.
Conveniently, container 1' is provided with a lifting device (not shown), whereby the height of container 1' and thus the length of the air gap LS, i.e. the distance of the surface of the spinning bath liquid to the stationary spinneret 7', may be adjusted.
The container according to the invention allows to keep the drawing angle a as small as possible, regardless of the width of spinneret 7'. When a wide spinneret is used, as shown in
Figure 2, the drawing angle a can be reduced by moving down the arm 8, thus increasing the spinning safety. In spinnerets of less widths, the diverting means 2' may be positioned nearer to the surface of the spinning bath liquid.
A further advantage of the container according to the invention consists in that the spinning operation can be started more easily. The diverting means is set at the upper final position and the air gap LS is increased by moving the whole container per se downwards. The filaments delivered by spinneret 7' immerse into the spinning bath, located at a relative long distance, are conducted over diverting means 2' and are bundled and maintained at the diverting means by means of the diagonally provided flanks 2'b and 2'c (see
Figure 3). The bundling may be carried out more easily when the diverting means located in the upper final position is set such that the spinneret 7' faces the area having the larger flank distance. The filament bundle is drawn diagonally upwards. During this process, the diverting means 2' may be immediately moved downwards into the spinning bath by means of rotation of axis 9, whereby the drawing angle is reduced and simultaneously the bundling of the filament bundle is slightly increased due to the diagonally provided flanks, since due to the rotation the area of the diverting means 2' facing spinneret 7' now has a smaller flank distance, thus increasing the bundling. The diverted filament bundle is passed to a drawing means provided downstream (not shown) and by means of a predetermined drawing rate, the desired titre is adjusted by drawing in the air gap LS.
Claims (1)
- CLAIMS:(1) A container for spinning bath liquid for carrying out a dry/wet-spinning process, in said process a dope being extruded through a spinneret having a high spinning hole density into a gaseous medium, whereby a bundle of filaments is produced which are introduced through the gaseous medium into the spinning bath liquid while being drawn, characterized in that a diverting means (2') for bundling and diverting the filaments is provided within said container (1'), said diverting means being vertically movable.(2) A container according to Claim 1, characterized in that said diverting means (2') exhibits a substantially cylindrical body (2'a) terminated by two substantially circular flanks (2'b, 2'c).(3) A container according to Claim 2, characterized in that the planes formed by said flanks (2'b, 2'c) include an angle of from 7 to 30 .(4) A container according to one of the Claims 1 to 3, characterized in that it further exhibits: (a) an inlet (3) for the introduction of spinning bath liquid into the container (1'), said inlet (3) being provided at the lower end of said container (1'), (b) an outlet (4) for spinning bath liquid provided at the upper part of said container.(5) The use of a container according to one of the Claims 1 to 4 for the dry/wet-spinning of mouldable solutions of cellulose in an aqueous tertiary amine-oxide.(6) A process for dry/wet-spinning by extruding a dope through a spinneret having a high spinning hole density into a gaseous medium, whereby a bundle of filaments is produced which are introduced through the gaseous medium into a spinning bath liquid while being drawn, which drawn filaments are bundled and conducted over a diverting means, characterized in that said diverting means (2') is spaced to said spinneret (7') such that the angle (a) formed by the outermost filaments of the filament bundle und the vertical to said spinneret (7') does not exceed 20 .(7) A process according to Claim 6, characterized in that a mouldable solution of cellulose in an aqueous tertiary amine-oxide is used as dope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0239194A ATA239194A (en) | 1994-12-22 | 1994-12-22 | DEVICE FOR CARRYING OUT A DRY / WET SPINNING PROCESS |
| PCT/AT1995/000244 WO1996019598A2 (en) | 1994-12-22 | 1995-12-19 | Device for implementing a dry/wet spinning process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9617016D0 GB9617016D0 (en) | 1996-09-25 |
| GB2301060A true GB2301060A (en) | 1996-11-27 |
Family
ID=3533492
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9617170A Withdrawn GB2301309A (en) | 1994-12-22 | 1995-11-27 | Spinning device |
| GB9617016A Withdrawn GB2301060A (en) | 1994-12-22 | 1995-12-19 | Device for impementing a dry/wet spinning process |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9617170A Withdrawn GB2301309A (en) | 1994-12-22 | 1995-11-27 | Spinning device |
Country Status (36)
| Country | Link |
|---|---|
| EP (4) | EP0887444B1 (en) |
| JP (2) | JPH09509704A (en) |
| KR (1) | KR100430918B1 (en) |
| CN (3) | CN1068910C (en) |
| AR (1) | AR000362A1 (en) |
| AT (5) | ATA239194A (en) |
| AU (2) | AU703733B2 (en) |
| BG (1) | BG61849B1 (en) |
| BR (2) | BR9506857A (en) |
| CA (2) | CA2183627C (en) |
| CO (1) | CO4480065A1 (en) |
| CR (1) | CR5234A (en) |
| CZ (2) | CZ288127B6 (en) |
| DE (6) | DE19581437D2 (en) |
| FI (2) | FI963270A (en) |
| GB (2) | GB2301309A (en) |
| HK (1) | HK1010401A1 (en) |
| HR (1) | HRP950610B1 (en) |
| HU (1) | HU220328B (en) |
| IL (1) | IL116292A (en) |
| MA (1) | MA23749A1 (en) |
| MX (1) | MX9603562A (en) |
| MY (1) | MY115450A (en) |
| NO (2) | NO310034B1 (en) |
| NZ (1) | NZ295314A (en) |
| PE (1) | PE4397A1 (en) |
| PL (1) | PL181190B1 (en) |
| RO (1) | RO114811B1 (en) |
| RU (1) | RU2132418C1 (en) |
| SK (1) | SK284686B6 (en) |
| TN (1) | TNSN95134A1 (en) |
| TR (1) | TR199501659A2 (en) |
| TW (1) | TW293040B (en) |
| UY (1) | UY24131A1 (en) |
| WO (2) | WO1996020300A2 (en) |
| ZA (1) | ZA9510655B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT405531B (en) | 1997-06-17 | 1999-09-27 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC FIBERS |
| DE19954152C2 (en) * | 1999-11-10 | 2001-08-09 | Thueringisches Inst Textil | Method and device for producing cellulose fibers and cellulose filament yarns |
| 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 |
| DE10060879B4 (en) * | 2000-12-07 | 2005-08-04 | Zimmer Ag | Spinning funnel device |
| DE10062083B4 (en) * | 2000-12-13 | 2008-04-10 | Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh | Process for the preparation of cellulose endless molded bodies |
| DE10206089A1 (en) | 2002-02-13 | 2002-08-14 | Zimmer Ag | bursting |
| US7887728B2 (en) | 2004-06-25 | 2011-02-15 | Toray Industries, Inc. | Spinning pack for dry-wet spinning, diverting guide for fiber bundle, and apparatus and method for producing fiber bundle |
| CN1282773C (en) * | 2005-05-30 | 2006-11-01 | 武汉大学 | Method for preparing regenerative cellulose fiber by two-step coagulating bath process |
| DE102005040000B4 (en) * | 2005-08-23 | 2010-04-01 | Lenzing Ag | Multi-spinneret arrangement and methods with suction and blowing |
| AT504144B1 (en) * | 2006-08-17 | 2013-04-15 | Chemiefaser Lenzing Ag | METHOD FOR THE PRODUCTION OF CELLULOSE FIBERS FROM A SOLUTION OF CELLULOSE IN A TERTIARY AMINE OXIDE AND DEVICE FOR CARRYING OUT THE METHOD |
| RU2541284C1 (en) * | 2011-06-15 | 2015-02-10 | Трютцшлер Нонвоувенз Гмбх | Trough of spinning bath |
| KR101339137B1 (en) * | 2011-12-22 | 2013-12-09 | 최정호 | Biodegradable yarn manufacturing device |
| CN103668504A (en) * | 2013-12-27 | 2014-03-26 | 吴江市华宏纺织丝绸有限公司 | Filament collecting rack |
| CN104099672A (en) * | 2014-07-14 | 2014-10-15 | 苏州盛达织带有限公司 | Vacuum spinneret device |
| CN104611776A (en) * | 2015-01-17 | 2015-05-13 | 海兴材料科技有限公司 | Outer ring-blowing cooling and center oiling device for composite spinning |
| CN108291344B (en) * | 2015-11-10 | 2022-02-25 | 营养与生物科学美国4公司 | Nonwoven glucan Web |
| JP2020100902A (en) * | 2017-03-17 | 2020-07-02 | Ｓｐｉｂｅｒ株式会社 | Dry and wet spinning apparatus |
| EP3470557A1 (en) | 2017-10-12 | 2019-04-17 | Lenzing Aktiengesellschaft | Spinning device and method for stringing up in a spinning device |
| EP3505659A1 (en) | 2018-08-30 | 2019-07-03 | Aurotec GmbH | Method and device for filament spinning with inflection |
| EP3674454A1 (en) * | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Cellulose filament process |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR207924A1 (en) * | 1976-02-18 | 1976-11-08 | Viscosagyar M | PROCEDURE AND DEVICE FOR THE PRODUCTION OF SYNTHETIC FILAMENTS FROM CAST |
| US4246221A (en) * | 1979-03-02 | 1981-01-20 | Akzona Incorporated | Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent |
| US4416698A (en) * | 1977-07-26 | 1983-11-22 | Akzona Incorporated | Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article |
| DE3205645A1 (en) * | 1982-02-17 | 1983-08-25 | Basf Ag, 6700 Ludwigshafen | METHOD AND DEVICE FOR PRODUCING PLASTIC THREADS |
| US4898704A (en) * | 1988-08-30 | 1990-02-06 | E. I. Du Pont De Nemours & Co. | Coagulating process for filaments |
| CN2055504U (en) * | 1989-09-23 | 1990-04-04 | 杭州化学纤维厂 | High-speed spinning device for shaping on rayon silk tube |
| AT395582B (en) * | 1991-01-09 | 1993-01-25 | Brunn Betonwerk | Process for producing concrete paving bricks or slabs having the particular property of adsorbing hydrocarbons and incorporating these so that they cannot be washed out by means of water and slowly degrading them ecologically |
| ATA53792A (en) * | 1992-03-17 | 1995-02-15 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, DEVICE FOR IMPLEMENTING THE METHOD AND USE OF A SPINNING DEVICE |
| DE4308524C1 (en) * | 1992-06-16 | 1994-09-22 | Thueringisches Inst Textil | Process for the production of cellulose fibers and filaments by the dry-wet extrusion process |
| ZA943387B (en) * | 1993-05-24 | 1995-02-17 | Courtaulds Fibres Holdings Ltd | Spinning cell |
| AT399729B (en) * | 1993-07-01 | 1995-07-25 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC FIBERS AND DEVICE FOR IMPLEMENTING THE METHOD AND THE USE THEREOF |
| AT402738B (en) * | 1993-07-28 | 1997-08-25 | Chemiefaser Lenzing Ag | SPIDER NOZZLE |
-
1994
- 1994-12-22 AT AT0239194A patent/ATA239194A/en not_active Application Discontinuation
-
1995
- 1995-11-27 NZ NZ295314A patent/NZ295314A/en unknown
- 1995-11-27 DE DE19581437D patent/DE19581437D2/en not_active Expired - Lifetime
- 1995-11-27 EP EP98117527A patent/EP0887444B1/en not_active Expired - Lifetime
- 1995-11-27 GB GB9617170A patent/GB2301309A/en not_active Withdrawn
- 1995-11-27 WO PCT/AT1995/000229 patent/WO1996020300A2/en active IP Right Grant
- 1995-11-27 DE DE59505595T patent/DE59505595D1/en not_active Expired - Fee Related
- 1995-11-27 AT AT98117527T patent/ATE222614T1/en not_active IP Right Cessation
- 1995-11-27 EP EP95937712A patent/EP0746642B1/en not_active Expired - Lifetime
- 1995-11-27 CN CN95192380A patent/CN1068910C/en not_active Expired - Lifetime
- 1995-11-27 DE DE19581437A patent/DE19581437B4/en not_active Expired - Fee Related
- 1995-11-27 AT AT95937712T patent/ATE178665T1/en not_active IP Right Cessation
- 1995-11-27 SK SK1044-96A patent/SK284686B6/en unknown
- 1995-11-27 PL PL95315840A patent/PL181190B1/en not_active IP Right Cessation
- 1995-11-27 CA CA002183627A patent/CA2183627C/en not_active Expired - Fee Related
- 1995-11-27 BR BR9506857A patent/BR9506857A/en not_active IP Right Cessation
- 1995-11-27 CZ CZ19962305A patent/CZ288127B6/en not_active IP Right Cessation
- 1995-11-27 RO RO96-01690A patent/RO114811B1/en unknown
- 1995-11-27 HU HU9602257A patent/HU220328B/en not_active IP Right Cessation
- 1995-11-27 KR KR1019960704671A patent/KR100430918B1/en not_active IP Right Cessation
- 1995-11-27 RU RU96119348A patent/RU2132418C1/en not_active IP Right Cessation
- 1995-11-27 MX MX9603562A patent/MX9603562A/en unknown
- 1995-11-27 AU AU38632/95A patent/AU703733B2/en not_active Ceased
- 1995-11-27 JP JP8520070A patent/JPH09509704A/en not_active Ceased
- 1995-11-27 DE DE59510336T patent/DE59510336D1/en not_active Expired - Fee Related
- 1995-12-04 TW TW084112883A patent/TW293040B/zh not_active IP Right Cessation
- 1995-12-08 IL IL11629295A patent/IL116292A/en not_active IP Right Cessation
- 1995-12-09 DE DE19581487T patent/DE19581487D2/en not_active Expired - Fee Related
- 1995-12-13 MY MYPI95003847A patent/MY115450A/en unknown
- 1995-12-13 PE PE1995287106A patent/PE4397A1/en not_active Application Discontinuation
- 1995-12-14 ZA ZA9510655A patent/ZA9510655B/en unknown
- 1995-12-15 AR AR33464695A patent/AR000362A1/en unknown
- 1995-12-19 WO PCT/AT1995/000244 patent/WO1996019598A2/en active IP Right Grant
- 1995-12-19 AT AT0902195A patent/ATA902195A/en not_active Application Discontinuation
- 1995-12-19 CN CN95192617A patent/CN1146218A/en active Pending
- 1995-12-19 JP JP8519353A patent/JPH09509703A/en active Pending
- 1995-12-19 MA MA24101A patent/MA23749A1/en unknown
- 1995-12-19 CA CA002183230A patent/CA2183230A1/en not_active Abandoned
- 1995-12-19 EP EP95940073A patent/EP0746641B1/en not_active Expired - Lifetime
- 1995-12-19 GB GB9617016A patent/GB2301060A/en not_active Withdrawn
- 1995-12-19 BR BR9506858A patent/BR9506858A/en not_active Application Discontinuation
- 1995-12-19 AT AT95940073T patent/ATE166677T1/en active
- 1995-12-19 DE DE59502340T patent/DE59502340D1/en not_active Expired - Fee Related
- 1995-12-19 EP EP97119866A patent/EP0832995A3/en not_active Withdrawn
- 1995-12-19 AU AU41675/96A patent/AU695715B2/en not_active Ceased
- 1995-12-20 HR HRA2391/94 patent/HRP950610B1/en not_active IP Right Cessation
- 1995-12-20 CR CR5234A patent/CR5234A/en not_active Application Discontinuation
- 1995-12-21 CO CO95060916A patent/CO4480065A1/en unknown
- 1995-12-21 UY UY24131A patent/UY24131A1/en not_active IP Right Cessation
- 1995-12-22 TN TNTNSN95134A patent/TNSN95134A1/en unknown
- 1995-12-22 TR TR95/01659A patent/TR199501659A2/en unknown
-
1996
- 1996-08-20 BG BG100793A patent/BG61849B1/en unknown
- 1996-08-21 FI FI963270A patent/FI963270A/en unknown
- 1996-08-21 FI FI963269A patent/FI963269A/en not_active IP Right Cessation
- 1996-08-21 NO NO963481A patent/NO310034B1/en unknown
- 1996-08-21 NO NO963480A patent/NO963480L/en unknown
-
1998
- 1998-09-28 HK HK98111006A patent/HK1010401A1/en not_active IP Right Cessation
-
2000
- 2000-09-20 CN CN00130433A patent/CN1132972C/en not_active Expired - Lifetime
- 2000-09-25 CZ CZ20003534A patent/CZ291490B6/en not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| The search results were not available at the time preparations for republication were completed * |
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2301060A (en) | Device for impementing a dry/wet spinning process | |
| CA2141817C (en) | Process and device for producing cellulose fibres | |
| CN1056891C (en) | High speed spinning of multi-component fibers with high hole surface density spinnerettes and high velocity quench | |
| US5984655A (en) | Spinning process and apparatus | |
| WO1992007122A1 (en) | Method and apparatus for treating meltblown filaments | |
| US6174474B1 (en) | Device and method for producing microfilament yarns with high titer uniformity from thermoplastic polymers | |
| BRPI0503683B1 (en) | device for continuous production of a nonwoven fabric | |
| HU214358B (en) | Process for manifacturing cellulose moulded bodies | |
| GB2180499A (en) | Apparatus for cooling and conditioning melt-spun material | |
| CN104838048B (en) | Weaving bath and method for the solidification of molded article | |
| KR100492069B1 (en) | Process and device for the transport of continuous moldings without tensile stress | |
| CN1181788A (en) | Method for the prodn. of cellulose fibres and device for carrying out the method | |
| JP3483070B2 (en) | Wet spinning device | |
| KR100995296B1 (en) | Multiple spinning nozzle arrangement and method for suctioning and blowing | |
| JPH10183420A (en) | Horizontal wet-coagulation bath and wet-spinning using the coagulation bath | |
| JPH0219508A (en) | Spinning column of natural suction type of bath solution | |
| JP4709445B2 (en) | Method for producing spunbond nonwoven | |
| CN113755958A (en) | Spinning winding roller tension adjusting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 789A | Request for publication of translation (sect. 89(a)/1977) | ||
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |