EP4381122A1 - Dispositif de texturation et procédé de texturation - Google Patents
Dispositif de texturation et procédé de texturationInfo
- Publication number
- EP4381122A1 EP4381122A1 EP23744883.2A EP23744883A EP4381122A1 EP 4381122 A1 EP4381122 A1 EP 4381122A1 EP 23744883 A EP23744883 A EP 23744883A EP 4381122 A1 EP4381122 A1 EP 4381122A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filament
- counter
- air flow
- nozzle
- crimped
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
-
- 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
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
- D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
- D02G1/165—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam characterised by the use of certain filaments or yarns
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
Definitions
- the present invention relates to a texturing device for producing crimped plastic filaments, which has a texturing nozzle with a nozzle insert with a hot compressed air supply connection and a filament guide slot tube and a cooling mechanism, the cooling mechanism being a counter-air flow mechanism integrated in the texturing nozzle.
- the invention further relates to a texturing method for producing crimped plastic filaments, wherein at least one plastic filament is blown in a texturing nozzle in a conveying direction by means of a hot-pressure air stream through a nozzle insert and crimped in a filament guide slot tube adjoining the nozzle insert, after which the at least one crimped plastic filament is cooled , wherein the at least one crimped plastic filament is cooled in that a counter air flow which is at least partially directed opposite to the hot-pressure air flow and which is cooler than the hot-pressure air flow is directed onto the at least one crimped plastic filament.
- plastic filaments or threads described in the present invention is often also referred to in textile technology as texturing of plastic filaments or threads.
- Crimped plastic filaments or crimped plastic threads are used, for example, in the production of artificial turf, where in various types of artificial turf, crimped plastic threads, so-called moss fibers, are incorporated as filling material in a floor area between the long, erect blades of grass made from smooth plastic threads. This results in a particularly soft and dense structure, with the long blades of lawn being supported by the crimped threads.
- the publication DE 24 57 825 A1 discloses a crimping device with a cylindrical stuffer box.
- the crimping device is provided with an inlet for a hot medium and four narrow pipes.
- the four lines are arranged in such a way that the hot medium is swirled in the diffuser chamber.
- the compression chamber mer has a hemispherical inlet end and is provided with openings extending in the radial direction to allow the escape of the medium.
- a device for crimping a yarn thread known from the document DE 29 03 508 A1 consists of a nozzle unit for a hot medium, a stuffing chamber with outlet openings for the hot medium, a residence time control chamber with means for the exit of a cold medium and a mixing nozzle.
- the nozzle unit is attached to a stuffing chamber housing, which consists of an arrangement of radially extending ribs.
- the hot medium can flow out radially through spaces between adjacent ribs.
- a similar crimping device is described in the publication DE 27 53 618 A1.
- a yarn enters there through an inlet opening, behind which there is a treatment nozzle with a central passage and four channels arranged tangentially to it.
- the yarn is twisted with a fluid and transported along the passage into a relaxation chamber which is provided with holes through which the fluid is released to the atmosphere.
- the device has a second nozzle for supplying a fluid for inhibiting and cooling the yarn.
- the device has a texturing nozzle in which filaments of a filament bundle are carried under the influence of hot air guided through the texturing nozzle. The heat causes the filaments to form loops and arches, from which a thread plug is formed in a stuffer box of the texturing nozzle. Subsequent filaments, which are also heated and thereby deformed into a loop, are compressed onto the thread plug, which results in a crimp of the filaments.
- a filament guide slot tube is provided instead of the stuffer box, through which the hot filaments are guided.
- the hot compressed air with which the filaments are blown through the texturing nozzle is suddenly released to the outside through the filament guide slot tube. Due to its nature, the filament guide slot tube still holds the filament bundle together. A flow stall occurs in the area of the filament guide slot tube, in which the monofilaments abruptly relax and curl.
- a cooling drum with a gas-permeable guide jacket, in which a negative pressure is generated is arranged under the texturing nozzle.
- the crimped filaments coming from the texturing nozzle lie with several wraps on tracks that are formed on the guide jacket of the cooling drum. Since the rotation speed of the cooling drum is lower than the feed speed of the threads coming from the texturing nozzle, the filaments retain their crimp, which is fixed by the cooling.
- the rotating cooling drum with the vacuum chamber inside ensures accumulation, cooling and precise removal of the textured monofilaments.
- the crimped filaments are then drawn off into a crimped thread by a take-off means arranged downstream of the cooling drum, such as a take-off godet.
- the crimped thread is wound onto a winding head.
- the problem with the known production of crimped filaments is the high energy consumption resulting in particular from the cooling drum.
- the cooling drum requires a vacuum, which must be generated by a compressor.
- the drum and the compressor also require a relatively large amount of space.
- a texturing device for producing crimped plastic filaments which has a texturing nozzle with a nozzle insert with a hot compressed air supply connection and a filament guide slot tube and a cooling mechanism, the cooling mechanism being a counter-air flow mechanism integrated in the texturing nozzle, the counter-air flow mechanism having a cooling air supply connection, wherein A counter-air flow slot tube aligned in line with the filament guide slot tube is arranged between the cooling air supply connection and the filament guide slot tube, and a pass-through nozzle is arranged between the counter air flow slot tube and the cooling air supply connection.
- the device according to the invention does not require a cooling drum. Instead, the device according to the invention has the counter air flow mechanism integrated in the texturing nozzle as a cooling mechanism. Due to the absence of a cooling drum, installation space and energy are saved in the present invention compared to the prior art.
- At least one plastic filament is heated to such an extent by the hot air flow generated in the texturing nozzle by means of the hot compressed air supply connection that the at least one plastic filament forms loops.
- the at least one hot plastic filament is conveyed in the direction of the filament guide slot tube by means of the hot compressed air.
- the at least one plastic filament which is strongly heated by the hot compressed air, is crimped as described above by the sudden flow stall.
- the filament guide slot tube preferably has longitudinal slots through which the hot air entering the filament guide slot tube from the nozzle insert can escape along a conveying direction of the texturing nozzle.
- the at least one crimped plastic filament is caused by the air flow of the hot compressed air in the direction of the counter air flow mechanism. generated counter air flow.
- the at least one crimped plastic filament is cooled in the texturing nozzle by the counter air flow directed opposite to the hot compressed air flow, whereby the crimp is fixed.
- the counter-air flow causes a slight braking and thus upsetting of the at least one crimped plastic filament at the point where the counter-air flow meets the hot-pressure air flow, which intensifies the crimping.
- the counter-air flow mechanism has a cooling air supply connection, with a counter-air flow slot tube aligned in line with the filament guide slot tube and coupled to it being arranged between the cooling air supply connection and the filament guide slot tube.
- the at least one crimped plastic filament after exiting the filament guide slot tube, the at least one crimped plastic filament enters the counter-air flow slot tube, in which the at least one crimped plastic filament meets the counter-air flow in a bundled manner.
- the counter air flow slows down the at least one crimped plastic filament, which further increases its upsetting and curling and at the same time leads to its cooling.
- the cooling causes the crimp to solidify.
- the counter air flow slot tube is slotted, preferably longitudinally slotted, some of the counter air flow escapes from it.
- the counter air flow consists of air that is colder than the hot compressed air. Since the hot compressed air that has not escaped from the filament guide slot tube and has already cooled down somewhat but is still warm is blown against the counter air flow, the counter air flow is at least cold at the beginning of the counter air flow slot tube, i.e. near the filament guide slot tube, and becomes increasingly cooler as the counter air flow slot tube progresses up to the cooling air supply connection . This leads to a gradual solidification of the crimp of the at least one crimped plastic filament in the counter-air flow slot tube.
- At least one heated pair of godets is arranged in front of the texturing nozzle in a filament processing direction of the texturing device, with which the at least one plastic filament can be preheated. It has been shown that, in the present invention, even a single such heated pair of godets is sufficient to achieve advantageous preheating of the at least one plastic filament. This allows further installation space to be saved.
- the object is further achieved by a texturing process for producing crimped plastic filaments, wherein at least one plastic filament is blown in a texturing nozzle in a conveying direction by means of a hot-pressure air stream through a nozzle insert and crimped in a filament guide slot tube adjoining the nozzle insert, after which the at least one crimped plastic filament is cooled, wherein the at least one crimped plastic filament is cooled in that a counter air flow which is at least partially directed opposite to the hot compressed air flow and which is cooler than the hot compressed air flow is directed onto the at least one crimped plastic filament, wherein the counter air flow is directed onto the at least one crimped plastic filament by means a counter-air flow slot tube aligned in line with the filament guide slot tube and coupled to it, and wherein the at least one crimped plastic filament is pulled through the counter air flow slot tube through a pass-through nozzle which is arranged downstream of the counter air flow slot tube in the conveying direction and blows air in the conveying direction.
- the texturing nozzle not only crimps the at least one plastic filament, but also cools it and thus fixes the crimp.
- the at least one plastic filament is first inserted into the preferably tubular nozzle insert, which is longitudinally closed except for a hot-compressed air supply connection, by the hot-compressed air flowing into it. stream warms.
- the at least one plastic filament is crimped by the sudden flow stall.
- the at least one crimped plastic filament hits the counter air flow, which is directed opposite to the conveying direction on the at least one crimped plastic filament, cools it and thus solidifies its crimp.
- the counter air flow is directed onto the at least one crimped plastic filament by means of a counter air flow slot tube aligned in line with the filament guide slot tube and coupled to it.
- the at least one crimped plastic filament can be continued bundled through the counter-air flow slot tube, whereby at the same time the counter-air flow can be directed specifically at the at least one crimped plastic filament. Due to the slotted design of the counter air flow slot tube, cold air emerges from it in the opposite direction to the conveying direction.
- the temperature difference to the hot compressed air, with which the at least one crimped plastic filament is transported to the counter-air flow slot tube, and the intensity of the cold air at the transition from the filament guide slot tube to the counter-air flow slot tube are still moderate compared to the other end of the counter-air flow slot tube, so that this is at least the case a crimped plastic filament can gradually cool and solidify in the counter-air flow slot tube.
- the texturing process according to the invention is significantly more economical than the known texturing processes described above, since in the texturing process according to the invention the texturing nozzle takes over both the crimping and the cooling of the at least one crimped plastic filament.
- the texturing nozzle designed according to the invention takes up significantly less installation space than a combination of a texturing nozzle suitable only for crimping with a cooling drum and consumes significantly less energy.
- the textured filaments produced using the texturing process according to the invention are equivalent in nature to conventionally textured filaments.
- the at least one crimped plastic filament is pulled through the counter-air flow slot tube by a pass-through nozzle which is arranged downstream of the counter-air flow slot tube in the conveying direction and blows air into the conveying direction of the texturing nozzle.
- the pass-through nozzle causes an air flow aligned in the conveying direction, which conveys the at least one crimped plastic filament in the direction of an outlet pipe or withdrawal end of the texturing nozzle despite the counter air flow. This can prevent the at least one crimped plastic filament from sticking or piling up inside the texturing nozzle.
- the method according to the invention can be carried out particularly effectively on a particularly compact device with reduced operating costs if the at least one plastic filament is preheated by a single heated pair of godets before it is passed through the texturing nozzle.
- the counter air flow has ambient pressure.
- Figure 1 shows schematically an embodiment of a texturing nozzle of a texturing device according to the invention in a sectioned side view
- Figure 2 shows schematically the texturing nozzle from Figure 1 in a non-sectional side view.
- Figures 1 and 2 show a possible embodiment of a texturing nozzle 1 according to the invention.
- the texturing nozzle 1 In its conveying direction A, the texturing nozzle 1 successively has a nozzle needle 2, a nozzle insert 3 with a hot-pressure air supply connection 4 located thereon, a filament guide slot tube 5, a counter-air flow slot tube 6, a pass-through nozzle 7, a cooling air supply connection 8 and an outlet pipe 9.
- the nozzle insert 3 is an internally hollow area of the texturing nozzle 1, which is closed circumferentially - except for the hot compressed air supply connection 4. Accordingly, at least one plastic filament, preferably a filament bundle made of plastic filaments, can be heated or kept warm within the nozzle insert 3. The heating or keeping warm takes place by means of hot compressed air flowing into the nozzle insert 3 from the hot compressed air supply connection 4.
- a hot-pressure air stream B flowing in the conveying direction A of the texturing nozzle 1 is generated by the hot-pressure air supply connection 4.
- the hot compressed air stream B has, for example, a pressure in a range of 5 to 6 bar and a temperature in a range of 100 to 150 ° C or 120 to 130 ° C.
- the filament guide slot tube 5 is mechanically coupled to the nozzle insert 3 in such a way that the at least one warm or hot plastic filament can enter the filament guide slot tube 5 directly from the nozzle insert 3.
- the filament guide slot tube 5 is also hollow on the inside, but is slotted on its circumference so that air can escape from it.
- the filament guide slot tube 5 is coupled to the counter air flow slot tube 6 by means of a coupling element 10 in such a way that their axes of rotation lie on a line.
- the counter air flow slot tube 6 is also hollow on the inside and slotted on its circumference so that air can also escape from it.
- connection block 11 An end of the counter-air flow slot tube 6 located opposite the filament guide slot tube 5 is mechanically coupled to a connection block 11 of the texturing nozzle 1.
- the connection block 11 has a filament guide channel 12 on the inside, to which the feed-through nozzle 7 and then the cooling air supply connection 8 are connected in the conveying direction of the texturing nozzle 1.
- An air flow C entering from the pass-through nozzle 7 into the filament guide channel 12 is at least partially aligned in the conveying direction A.
- the counter air flow D entering from the cooling air supply connection 8 into the filament guide channel 12 is at least partially aligned against the conveying direction A and thus at least partially against the hot compressed air flow B.
- Both the air that flows from the pass-through nozzle 7 into the filament guide channel 12 and the air that flows from the cooling air supply connection 8 into the filament guide channel 12 are significantly colder than the hot compressed air flow B.
- the air from the cooling air supply connection 8 or that generated with it Counter air flow D can have ambient pressure, i.e. 1 bar.
- the at least one plastic filament entering the texturing nozzle 1, preferably a plurality of plastic monofilaments, such as 8 plastic monofilaments, which together form a filament bundle and are introduced into the texturing nozzle 1, is/are previously produced by a monofilament extrusion system, optionally passed through a water bath , then pulled over at least one, preferably a single, heated pair of godets, heated and exposed to a certain stress and then fed directly, in a still hot, soft state, to the texturing nozzle 1, which is typically located under the heated pair of godets.
- the at least one plastic filament can consist, for example, of LDPE (low density polyethylene) or PP (polypropylene), although numerous other plastic materials are possible for this.
- LDPE low density polyethylene
- PP polypropylene
- the at least one plastic filament is blown through the texturing nozzle 1 at high air pressure, which is typically greater than 5 bar, and at a high temperature, which depends on the material but is usually greater than 100 ° C.
- high air pressure typically greater than 5 bar
- high temperature which depends on the material but is usually greater than 100 ° C.
- the air with the high air pressure and high temperature is generated by the hot compressed air supply port 4 connected to the nozzle insert 3.
- the hot compressed air is suddenly released to the outside through the filament guide slot tube 5 arranged at the outlet of the nozzle insert 3.
- the hot compressed air is released evenly along the longitudinal slots of the filament guide slot tube 5.
- the at least one plastic filament or the filament bundle is still held together.
- a flow stall occurs in the filament guide slot tube 5, in which the at least one plastic filament or the monofilaments of the filament bundle suddenly relax/relax and curl/curl.
- the hot compressed air supply connection 4 air continues to flow, the at least one crimped plastic filament is pushed further and directly hits the ambient counter air of the counter air flow D. In this counter air, the at least one crimped plastic filament is slowed down and cooled.
- a take-off godet transports the at least one crimped plastic filament further to a winder.
- the at least one crimped plastic filament cools down further.
- the take-off godet is typically unheated and pulls off the crimped filaments with very low thread tension, for example at a speed of approx. 100 m/min.
- the textured thread is then wound onto a bobbin head using a winder.
- a texturing device On a texturing device according to the invention, several texturing nozzles 1 can be arranged next to one another, so that a plurality of filament bundles can be texturized at the same time.
- the temperature, air pressure and thread or filament speed are precisely adjusted and coordinated with one another, so that there is no clogging within the texturing nozzle 1.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
La présente invention concerne un dispositif de texturation pour produire des filaments plastiques frisés, comprenant une buse de texturation pourvue d'un insert comportant un raccord d'alimentation en air chaud comprimé et un tube fendu de guidage de filament et un mécanisme de refroidissement, le mécanisme de refroidissement étant un mécanisme de flux d'air antagoniste intégré dans la buse de texturation. L'invention concerne également un procédé de texturation pour la fabrication de filaments plastiques frisés, selon lequel au moins un filament plastique est soufflé dans un insert d'une buse de texturation dans une direction de transport au moyen d'un flux d'air chaud comprimé et est frisé dans un tube fendu de guidage de filament adjacent à l'insert de buse, ledit au moins un filament plastique frisé étant ensuite refroidi ; ledit au moins un filament plastique frisé est refroidi par le fait qu'un flux d'air antagoniste, qui est dirigé au moins partiellement à l'encontre du flux d'air chaud comprimé et est plus froid que le flux d'air chaud comprimé, est dirigé vers ledit au moins un filament plastique frisé. Selon l'invention, le mécanisme de flux d'air antagoniste comporte un raccord d'alimentation en air de refroidissement, un tube fendu à flux d'air antagoniste étant situé entre le raccord d'alimentation en air de refroidissement et le tube fendu de guidage de filament et se trouvant sur une ligne droite imaginaire entre ceux-ci, et une buse traversante étant placée entre le tube fendu à flux d'air antagoniste et le raccord d'alimentation en air de refroidissement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022121694.2A DE102022121694A1 (de) | 2022-08-26 | 2022-08-26 | Texturiervorrichtung und Texturierverfahren |
| PCT/IB2023/056954 WO2024042384A1 (fr) | 2022-08-26 | 2023-07-05 | Dispositif de texturation et procédé de texturation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4381122A1 true EP4381122A1 (fr) | 2024-06-12 |
Family
ID=87429458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23744883.2A Pending EP4381122A1 (fr) | 2022-08-26 | 2023-07-05 | Dispositif de texturation et procédé de texturation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12516447B2 (fr) |
| EP (1) | EP4381122A1 (fr) |
| CN (1) | CN118265820A (fr) |
| DE (1) | DE102022121694A1 (fr) |
| WO (1) | WO2024042384A1 (fr) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2030229A1 (en) * | 1970-06-19 | 1971-12-30 | Triumph-Universa GmbH, Bern | Pneumatic compaction crimping appts - crimping synthetic yarns at controlled rates |
| CH527931A (de) * | 1970-12-16 | 1972-09-15 | Neumuenster Masch App | Vorrichtung zum Kräuseln von Fäden |
| GB1485768A (en) * | 1973-12-07 | 1977-09-14 | Ici Ltd | Production of crimped yarn |
| GB1487180A (en) | 1973-12-07 | 1977-09-28 | Ici Ltd | Yarn crimping process and apparatus |
| JPS5345420A (en) * | 1976-10-05 | 1978-04-24 | Teijin Ltd | Crimping of filament yarns and its apparatus |
| GB1592646A (en) * | 1976-12-01 | 1981-07-08 | Ici Ltd | Yarn treatment |
| JPS54151653A (en) | 1978-05-16 | 1979-11-29 | Teijin Ltd | Crimping method and apparatus of yarn |
| SU855093A1 (ru) * | 1979-04-11 | 1981-08-15 | Всесоюзный научно-исследовательский институт синтетических волокон | Устройство дл текстурировани термопластичных нитей |
| EP0212175B1 (fr) * | 1985-07-15 | 1989-10-18 | Maschinenfabrik Rieter Ag | Machine à texturer les fils de filaments continus |
| DE102007022112A1 (de) | 2006-05-18 | 2007-11-22 | Saurer Gmbh & Co. Kg | Vorrichtung zum Kräuseln eines synthetischen Fadens |
| DE102013003408A1 (de) * | 2013-02-28 | 2014-08-28 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum pneumatischen Fördern und Führen eines multifilen Fadens |
| DE102013020471A1 (de) * | 2013-12-03 | 2015-06-18 | Saurer Germany Gmbh & Co. Kg | Verfahren und Vorrichtung zur kontinuierlichen Bearbeitung eines fadenförmigen Gutes |
-
2022
- 2022-08-26 DE DE102022121694.2A patent/DE102022121694A1/de active Pending
-
2023
- 2023-07-05 WO PCT/IB2023/056954 patent/WO2024042384A1/fr not_active Ceased
- 2023-07-05 US US18/700,362 patent/US12516447B2/en active Active
- 2023-07-05 CN CN202380014532.8A patent/CN118265820A/zh active Pending
- 2023-07-05 EP EP23744883.2A patent/EP4381122A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250003115A1 (en) | 2025-01-02 |
| WO2024042384A1 (fr) | 2024-02-29 |
| US12516447B2 (en) | 2026-01-06 |
| DE102022121694A1 (de) | 2024-02-29 |
| CN118265820A (zh) | 2024-06-28 |
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