EP3568510B1 - Device and method for producing a multicolored yarn - Google Patents
Device and method for producing a multicolored yarn Download PDFInfo
- Publication number
- EP3568510B1 EP3568510B1 EP18700410.6A EP18700410A EP3568510B1 EP 3568510 B1 EP3568510 B1 EP 3568510B1 EP 18700410 A EP18700410 A EP 18700410A EP 3568510 B1 EP3568510 B1 EP 3568510B1
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- EP
- European Patent Office
- Prior art keywords
- filaments
- nozzle
- rollers
- yarn
- texturing
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- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims 6
- 239000003086 colorant Substances 0.000 description 13
- 229920002292 Nylon 6 Polymers 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- 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
- D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
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- 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
- D02G1/168—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including drawing or stretching on the same machine
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- 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
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
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- 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
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
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- 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
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/224—Selection or control of the temperature during stretching
-
- 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
- D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
Definitions
- the present invention relates to a device and a method for producing a multicolored yarn from differently colored filaments, each consisting of a large number of continuous filaments, with at least two filaments being guided into a drawing device, where they are guided by a pair of infeed rollers to at least two pairs of drafting system rollers and stretched by them, which are followed by a texturing device with a cooling drum, according to the preamble of claim 1.
- colored yarns are produced by mixing several bundles of threads of different colors.
- the individual endless filaments In order to create a clear color effect on the end product, the individual endless filaments must be connected to one another in such a way that a clear color separation can be seen. This is usually done by tangles, in which the threads are intertwined by applying compressed air from the side. The crimping then takes place in the stuffer box of a texturing nozzle.
- the EP 0784109 B1 describes a method for producing a yarn with a plurality of differently colored filament bundles. At least one bundle of filaments is treated individually above the joining step and below all previous stretching and texturing processes.
- the object of the invention is the further development of a known device and a method with the aim of simplifying the device and the method for producing the multicolored yarns and producing an end product with a clear color effect.
- the invention includes the technical teaching that to produce a multicolored yarn from differently colored filaments consisting of a large number of continuous filaments, at least two filaments are guided into a drawing device, where they are guided by a pair of infeed rollers to at least two pairs of drafting system rollers and are stretched by these, which is followed by a texturing device with a cooling drum.
- the invention is characterized in that a nozzle for knotting the filaments, which consist of a large number of continuous filaments, is arranged in front of the texturing device. Each filament is knotted separately in the nozzle. The filaments converge into a yarn in the texturing nozzle. Contrary to the general opinion of those skilled in the art, it has surprisingly been shown that sticking and bonding of the filaments during subsequent texturing can be prevented due to the short residence time in the nozzle, so that very high color clarity can be achieved.
- the nozzle for knotting the filaments is arranged after the two-stage stretching and before the texturing nozzle.
- the pair of drafting rollers in front of the nozzle has the highest speed in the drafting device, with which the filaments are conveyed. This allows a minimum residence time in the nozzle to be achieved, which prevents the colors from mixing due to the possible bonding of the filaments with each other.
- the speed of the filaments on these drafting system rollers is at least 1,700 m/min.
- the drafting system rollers are designed as heated duo rollers.
- the filaments which consist of a large number of continuous filaments, are each knotted separately by means of a nozzle before being stretched. This first knotting can further improve the subsequent process of the second knotting, since it stabilizes the structure of the individual filaments.
- the nozzles for turbulence and knotting can be operated at a pressure (overpressure) of 0.01 to 12 bar, with a gaseous medium, preferably air, being introduced laterally into the nozzle and causing the filaments to be turbulent or knotted.
- a pressure overpressure
- a gaseous medium preferably air
- the nozzle is arranged after the pair of infeed rollers and before the drafting system rollers for knotting the filaments. According to the prevailing opinion, subsequent stretching and texturing would reduce the color clarity of the yarn, since the individual filaments can stick together as the process progresses. A very short dwell time of the filaments in the nozzle prevented subsequent sticking and bonding of the filaments, so that the desired color clarity also comes to light.
- drafting system rollers are used after the texturing device, which cool the yarn to a temperature of 0°C to 80°C, preferably to a temperature of 0°C to 50°C. This is advantageous for the further fixation of the yarn that has been compressed in the texturing nozzle, but the color clarity also comes into its own before the yarn is wound on the winder.
- the method according to the invention according to claim 9 solves the problem in that at least two filaments are guided into a stretching device, guided there by a pair of infeed rollers to at least two pairs of drafting system rollers and stretched by them, then textured and cooled on a cooling drum (9). .
- the method according to the invention is characterized in that the filaments, which consist of a large number of continuous filaments, are each knotted separately before texturing. The subsequent convergence of the filaments into a yarn takes place in the texturing nozzle.
- the filaments are entangled to form a yarn after two-stage stretching in the texturing nozzle. Since the speed of the filaments in the drafting device is highest on the second pair of drafting rollers, the short dwell time in the nozzle, in which the filaments are knotted separately, means that the filaments do not mix with each other or partially fuse during the subsequent texturing, which means that the color clarity of the yarn is improved.
- the speed of the filaments is at least 1,700 m/min.
- the effect is preferably intensified if the filaments, which consist of a large number of individual filaments, are knotted separately before stretching. As a result, each knotted filament has a more stable structure, which has a better effect on color clarity during subsequent texturing and swirling.
- the filaments are knotted before stretching.
- the short dwell time in the nozzle means that the filaments do not tend to stick together during further processing in the texturing nozzle.
- the yarn is preferably stretched or relaxed by drafting rollers, which cool the yarn to a temperature of 0°C to 80°C, preferably to a temperature of 0°C to 50°C.
- the yarn that is puffed up in the texturing nozzle can thus be set very well without reducing the color clarity.
- FIG 1 shows a section of a spinning-drawing system according to a first exemplary embodiment, in which six differently colored filaments F1-F6, for example made of polyamide 6 (PA6), run into the drawing device 1 from spinnerets (not shown).
- F1-F6 for example made of polyamide 6 (PA6)
- FIG. 1 shows a section of a spinning-drawing system according to a first exemplary embodiment, in which six differently colored filaments F1-F6, for example made of polyamide 6 (PA6), run into the drawing device 1 from spinnerets (not shown).
- Filaments F1 - F6 are colored using different batches of plastics, which are extruded separately and converted into endless filaments using a spinning head.
- Each filament F1 - F6 consists of up to 1000 continuous filaments, which are combined below the spinning head in front of the stretching device 1 to form one filament F1 - F6 each.
- a first nozzle 4 can optionally be arranged between the pair of inlet rollers 3.1, 3.2 and the pair of stretching rollers 5.1, 5.2, in which the six filaments F1-F6 are laterally subjected to a gaseous medium, preferably air, with a pressure of 0.01-12 bar .
- the nozzle 4 has a separate guide for each filament F1-F6, so that the filaments F1-F6 do not come into contact with one another. Up to 1000 endless filaments are knotted together within the guide of the nozzle 4, so that six separately knotted filaments F1-F6 exit the nozzle 4 and are guided onto the drafting system roller pair 5.1, 5.2.
- the filaments F1-F6 are heated to a temperature of 65° C. at a speed of 925 m/min.
- This pair of drafting system rollers 5.1, 5.2 is designed as a mono-roller, in which only the drafting system roller 5.1 is driven.
- the drafting system roller 5.2 is not driven, but rotates with the tension of the filaments F1-F6.
- the drafting system rollers 5.1, 5.2 can also be designed as duo rollers in which both rollers are driven and which essentially have the same outside diameter. This has the advantage that the gradual heating of the filaments F1 - F6 can take place more continuously over a longer period of time, which is advantageous for the transformation of the molecular chains.
- the surfaces of the pairs of drafting rollers can be heated via a heating system (not shown), for example an electrical, steam-based or liquid-based heating system, it being assumed below that the filaments F1 - F6 during at least two turns around the drafting roller pairs also have assumed the temperature of the pairs of stretching rollers.
- a heating system for example an electrical, steam-based or liquid-based heating system, it being assumed below that the filaments F1 - F6 during at least two turns around the drafting roller pairs also have assumed the temperature of the pairs of stretching rollers.
- the filaments F1 - F6 are guided from the pair of stretching rollers 5.1, 5.2 to the pair of stretching rollers 6.1, 6.2, having first passed them through a guide 14 be kept at a distance from each other. Further stretching and heating on the pair of stretching rollers 6.1, 6.2, which are designed as a duo, takes place at a speed of 2,500 m/min and heating to 170°C.
- the nozzle 7 also has a separate guide for each filament F1-F6, so that the filaments F1-F6 do not come into contact with one another. Up to 1000 continuous filaments are knotted together within the guide of the nozzle 7, so that six separately knotted filaments F1-F6 exit the nozzle 7 and enter the texturing nozzle. In the nozzle 7, the six filaments F1-F6 are knotted by an injected gaseous medium, preferably air, at a pressure of 0.01-12 bar.
- Yarns G1, G2 are formed in the texturing nozzle 8, with a total of two crimped yarns G1, G2 being produced in the texturing nozzle 8, each consisting of three filaments F1-F3 and F4-F6, each with one color per filament.
- each yarn G1, G2 can have three filaments with three different colors that are clearly distinguishable from each other.
- each yarn G1, G2 can also consist of two or four filaments of different colors.
- the advantage of the invention is that the yarn G1, G2 with the three filaments clearly displays the colors of the filaments without any intermingling. According to the state of the art, this would not be possible since the individual filaments F1-F3 and F4-F6 would stick together, which would lead to an unclear differentiation of the colors. In contrast to the prior art, it has surprisingly been shown that with an extremely short dwell time within the nozzle 7, the subsequent sticking of the filaments F1-F3 and F4-F6 in the texturing nozzle can be prevented. Since the speed of the filaments F1-F6 in the entire drafting device 1 is highest at the drafting rollers 6.1 and 6.2 is, at the same time the dwell time of the filaments F1 - F6 in the downstream nozzle 7 is the shortest. The dwell time of the filaments F1-F6 at a speed of the filaments F1-F6 around the drafting rollers 6.1 and 6.2 of 2,500 m/min with PA6 in the nozzle 7 is only around 5 milliseconds.
- the parameters for the drafting system rollers 6.1, 6.2 can look like this, for example: parameters for Unit pp PA6 PET PA6-6 drafting rollers 6.1,6.2 speed m/min 2030 2500 3200 2960 temperature °C 130 170 165 200
- the filaments F1-F6 run into the downstream texturing nozzle 8, in which they converge to form the yarn G1 and G2, which means that the texturing nozzle 8 only has to have two nozzle channels.
- the structure of which is frozen on the subsequent cooling drum 9.
- the filaments F1 - F6 are thus heated again in the texturing nozzle 8 after the nozzle 7, with PA6 from 170°C to 180°C.
- a subsequent slight stretching takes place with cold drafting rollers 10.1, 10.2 and 11.1, 11.2.
- the speed of the yarn on the drafting system roller 10.1 is 2,222 m/min.
- the drafting roller 11.1 transports the yarn G1, G2 with a Speed of 2,257 m/min at a temperature of, for example, 20°C to 80°C.
- the drafting system rollers 10.1, 10.2, 11.1, 11.2 can preferably be cooled.
- the yarn G1, G2 is wound onto two spools at a speed of 2201 m/min.
- the advantage of this system is that an existing system with six or up to twelve incoming filaments only requires one texturing nozzle 8 with two or up to four channels, so that the drafting with the drafting system rollers 10.1, 10.2, 11.1, 11.2 is shorter can be built.
- the nozzle 4 can be used optionally.
- the process for knotting the filaments F1 - F6 separately in the nozzle 7 and combining them into the yarns G1, G2 in the texturing nozzle 8 can also be carried out without the nozzle 4 ( figure 3 ) can be used and gives good results.
- the use of the nozzle 4 for knotting the individual filaments F1 - F6 has the advantage that the structure of each individual filament F1 - F6 is more stable, which has a positive effect on the subsequent knotting in the nozzle 7 . With the nozzle 4, which causes a knotting of up to 1000 endless filaments of each filament F1 - F6, the color separation after the knotting in the nozzle 7 becomes even clearer.
- the six filaments F1-F6 are knotted separately by using the nozzle 4 between the pair of inlet rollers 3.1, 3.2 and the drafting system rollers 5.1, 5.2. Due to the short residence time of the filaments F1-F6 in the nozzle 4, a separate knotting can take place, so that a clear color separation is also achieved in the yarns G1, G2 subsequently produced in the texturing nozzle 8 from the six filaments F1-F6.
- the further processing of the filaments F1 - F6 takes place as in the exemplary embodiment 1, but without the nozzle 7.
- the advantage of this configuration is that the separately knotted filaments F1 - F6 can be guided more easily and more stably from the nozzle 4 through the entire system.
- the color separation can be maintained by a very short dwell time of the filaments F1-F6 in the nozzle 4.
- the dwell time of the plastic of the filaments F1-F6 in the nozzle 7 is around 10 milliseconds.
- the filaments (F1 - F6) are knotted separately with each other exclusively with the nozzle 7 in front of the texturing nozzle 8 and three filaments F1 - F3 and F4 - F6 are connected to one another in the texturing nozzle 8 to form a yarn G1, G2. Otherwise, the embodiment is identical to the embodiment of FIG figure 1 .
- filaments F1-F6 for example made of polyamide 6 (PA6) enter the stretching device 1 from spinnerets (not shown).
- Filaments F1 - F6 are colored using different batches of plastics, which are extruded separately and converted into endless filaments using a spinning head.
- Each filament F1 - F6 consists of up to 1000 endless filaments, which are combined below the spinning head in front of the stretching device 1 to form a filament F1 - F6.
- the filaments F1 - F6 enter the drafting device 1 at a speed of 925 m/min, are treated with oil or a lubricant in a preparation device 2 and are diverted via a pair of infeed rollers 3.1, 3.2 to a first pair of drafting system rollers 5.1, 5.2.
- the filaments F1-F6 are heated to a temperature of 65° C. at a speed of 925 m/min.
- This drafting roller pair 5.1, 5.2 is designed as a mono role in which only the drafting roller 5.1 is driven.
- the filaments F1-F6 are guided from the pair of stretching rollers 5.1, 5.2 to the pair of stretching rollers 6.1, 6.2, where they are previously kept at a distance from one another by a guide 14. Further stretching and heating on the pair of stretching rollers 6.1, 6.2, which are designed as a duo, takes place at a speed of 2,500 m/min and heating to 170°C.
- the nozzle 7 also has a separate guide for each filament F1-F6, so that the filaments F1-F6 do not come into contact with one another.
- Up to 1000 continuous filaments are knotted together within the guide of the nozzle 7, so that six separately knotted filaments F1-F6 exit the nozzle 7 and enter the texturing nozzle.
- the six filaments F1-F6 are knotted together by means of an injected gaseous medium, preferably air, at a pressure of 0.01-12 bar.
- Yarns G1, G2 are formed in the texturing nozzle 8, with a total of two crimped yarns G1, G2 being produced in the texturing nozzle 8, each consisting of three filaments F1-F3 and F4-F6, each with one color per filament.
- each yarn G1, G2 can have three filaments with three different colors that are clearly distinguishable from each other.
- each yarn G1, G2 can also consist of two or four filaments of different colors.
- the advantage of the invention in this embodiment is that the yarn G1, G2 with the three filaments clearly shows the colors of the filaments without any intermingling. According to the state of the art, this would not be possible since the individual filaments F1-F3 and F4-F6 would stick together, which would lead to an unclear differentiation of the colors. In contrast to the prior art, it has surprisingly been shown that with an extremely short residence time within the nozzle 7, the subsequent bonding of the Filaments F1 - F3 and F4 - F6 can be prevented. Since the speed of the filaments F1-F6 in the entire drafting device 1 is highest at the drafting system rollers 6.1 and 6.2, the dwell time of the filaments F1-F6 in the downstream nozzle 7 is at the same time the shortest. The dwell time of the filaments F1-F6 at a speed of the filaments F1-F6 around the drafting rollers 6.1 and 6.2 of 2,500 m/min with PA6 in the nozzle 7 is only around 5 milliseconds.
- the parameters for the drafting system rollers 6.1, 6.2 can look like this, for example: parameters for Unit pp PA6 PET PA6-6 drafting rollers 6.1,6.2 speed m/min 2030 2500 3200 2960 temperature °C 130 170 165 200
- the filaments F1-F6 run into the downstream texturing nozzle 8, in which they converge to form the crimped yarn G1 and G2, which means that the texturing nozzle 8 only has to have two nozzle channels.
- two crimped yarns G1, G2 are produced from the filaments, the structure of which is frozen on the subsequent cooling drum 9.
- the filaments F1 - F6 are thus heated again in the texturing nozzle 8 after the nozzle 7, with PA6 from 170°C to 180°C.
- a subsequent slight stretching takes place with cold drafting rollers 10.1, 10.2 and 11.1, 11.2.
- the speed of the yarn on the drafting system roller 10.1 is 2,222 m/min.
- the drafting system roller 11.1 transports the yarn G1, G2 at a speed of 2,257 m/min at a temperature of 20°C to 80°C.
- the drafting system rollers 10.1, 10.2 and 11.1, 11.2 are preferably cooled.
- the yarn G1, G2 is wound onto two spools at a speed of 2201 m/min.
- a total of up to 12 filaments (F1 - F12) of different colors, each with up to 1000 continuous filaments, can be processed in the system, so that up to four yarns (G1...G4) can be produced, with each yarn consisting of two, three or four filaments of different colors.
- the invention can be used with all types of polymers such as PP, PET, PA6, PA6.6 or PBT.
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- 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)
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Description
Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zur Erzeugung eines mehrfarbigen Garnes aus unterschiedlich farbigen Filamenten, die jeweils aus einer Vielzahl von Endlosfilamenten bestehen, wobei mindestens zwei Filamente in eine Streckvorrichtung geführt werden, dort von einem Paar Einlaufrollen zu mindestens zwei Paaren von Streckwerksrollen geführt und von diesen verstreckt werden, denen eine Texturiervorrichtung mit einer Kühltrommel nachgeordnet ist, nach dem Oberbegriff von Anspruch 1.The present invention relates to a device and a method for producing a multicolored yarn from differently colored filaments, each consisting of a large number of continuous filaments, with at least two filaments being guided into a drawing device, where they are guided by a pair of infeed rollers to at least two pairs of drafting system rollers and stretched by them, which are followed by a texturing device with a cooling drum, according to the preamble of
Zur Herstellung von textilen Waren, insbesondere von Teppichen und Polstern, werden durch Vermischen mehrerer Fadenbündel unterschiedlicher Farben Buntgarne erzeugt. Um an dem Endprodukt einen klaren Farbeffekt zu erzeugen, müssen die einzelnen Endlosfilamente so miteinander verbunden werden, dass eine eindeutige Farbtrennung erkennbar ist. Üblicherweise erfolgt dies durch ein Tangeln, in dem die Fäden durch eine seitliche Druckluftbeaufschlagung miteinander verflochten werden. Anschließend erfolgt das Kräuseln in der Stauchkammer einer Texturierdüse.For the production of textile goods, especially carpets and upholstery, colored yarns are produced by mixing several bundles of threads of different colors. In order to create a clear color effect on the end product, the individual endless filaments must be connected to one another in such a way that a clear color separation can be seen. This is usually done by tangles, in which the threads are intertwined by applying compressed air from the side. The crimping then takes place in the stuffer box of a texturing nozzle.
Um eine Vermischung der Farben zu vermeiden, also eine hohe Farbklarheit bzw. Farbseparierung zu erzielen, ist es Stand der Technik, Tangeln nach dem Spinnstreckverfahren und nach der Texturierung anzuwenden, da nicht die Deformation des kompletten Stranges erwünscht ist, sondern die Deformation der einzelnen Filamente. Dabei wird unterstellt, dass ein Tangeln vor dem Verstrecken und Texturieren zu einem Verkleben oder zu starkem aneinanderheften der Filamente führt, was zwangsläufig zu einer Vermischung oder unklaren Abgrenzung der Farben führt. Damit wird eine Anlage zur Verarbeitung von sechs oder neun Filamenten sehr aufwändig, da die Texturierdüse ebenfalls sechs oder neun Kanäle umfassen muss und die Kühltrommel, Streckwerksrollen und die Umlenkungen einschließlich Lager und Temperaturführung entsprechend dimensioniert werden müssen, um die sechs bzw. neun Filamente mit Abstand zueinander zu führen.In order to avoid mixing the colors, i.e. to achieve high color clarity or color separation, it is state of the art to use tangles after the spin-draw process and after texturing, since it is not the deformation of the entire strand that is desired, but the deformation of the individual filaments . It is assumed that tangles before stretching and texturing filaments sticking together or sticking too much together, which inevitably leads to color mixing or unclear differentiation. This makes a system for processing six or nine filaments very complex, since the texturing nozzle must also have six or nine channels and the cooling drum, drafting system rollers and the deflectors including bearings and temperature control must be dimensioned accordingly in order to keep the six or nine filaments at a distance to lead to each other.
Die
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Aufgabe der Erfindung ist die Weiterbildung einer bekannten Vorrichtung und eines Verfahrens mit dem Ziel, die Vorrichtung und das Verfahren zur Herstellung der mehrfarbigen Garne zu vereinfachen und ein Endprodukt mit einem klaren Farbeffekt herzustellen.The object of the invention is the further development of a known device and a method with the aim of simplifying the device and the method for producing the multicolored yarns and producing an end product with a clear color effect.
Diese Aufgabe wird ausgehend von einer Vorrichtung gemäß dem Oberbegriff des Anspruches 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved on the basis of a device according to the preamble of
Die Erfindung schließt die technische Lehre ein, dass zur Erzeugung eines mehrfarbigen Garnes aus unterschiedlich farbigen Filamenten, die aus einer Vielzahl von Endlosfilamenten bestehen, mindestens zwei Filamente, in eine Streckvorrichtung geführt werden, dort von einem Paar Einlaufrollen zu mindestens zwei Paaren von Streckwerksrollen geführt und von diesen verstreckt werden, denen eine Texturiervorrichtung mit einer Kühltrommel nachgeordnet ist.The invention includes the technical teaching that to produce a multicolored yarn from differently colored filaments consisting of a large number of continuous filaments, at least two filaments are guided into a drawing device, where they are guided by a pair of infeed rollers to at least two pairs of drafting system rollers and are stretched by these, which is followed by a texturing device with a cooling drum.
Die Erfindung ist dadurch gekennzeichnet, dass vor der Texturiervorrichtung eine Düse zum Verknoten der Filamente, die aus einer Vielzahl von Endlosfilamenten bestehen, angeordnet ist. Dabei wird jedes Filament in der Düse separat verknotet. Die Konvergierung der Filamente zu einem Garn erfolgt in der Texturierdüse. Entgegen der allgemeinen Auffassung der Fachleute hat sich überraschenderweise gezeigt, dass über die kurze Verweilzeit in der Düse ein Verkleben und Verbinden der Filamente beim nachfolgenden Texturieren unterbunden werden kann, so dass eine sehr hohe Farbklarheit erreichbar ist.The invention is characterized in that a nozzle for knotting the filaments, which consist of a large number of continuous filaments, is arranged in front of the texturing device. Each filament is knotted separately in the nozzle. The filaments converge into a yarn in the texturing nozzle. Contrary to the general opinion of those skilled in the art, it has surprisingly been shown that sticking and bonding of the filaments during subsequent texturing can be prevented due to the short residence time in the nozzle, so that very high color clarity can be achieved.
Nach Anspruch 1 ist die Düse zum Verknoten der Filamente nach der zweistufigen Verstreckung und vor der Texturierdüse angeordnet. Dabei weist das Paar an Streckwerksrollen vor der Düse die höchste Geschwindigkeit in der Streckvorrichtung auf, mit der die Filamente gefördert werden. Dadurch kann eine minimale Verweilzeit in der Düse erreicht werden, die ein Vermischen der Farben aufgrund der möglichen Verbindung der Filamente miteinander verhindert. Die Geschwindigkeit der Filamente auf diesen Streckwerksrollen beträgt dabei mindestens 1.700 m/min.According to
Um eine gleichmäßige Erwärmung der Filamente zu erreichen, sind die Streckwerksrollen als beheizte Duorollen ausgebildet.In order to achieve uniform heating of the filaments, the drafting system rollers are designed as heated duo rollers.
Mit weiterem Vorteil werden die Filamente, die aus einer Vielzahl von Endlosfilamenten bestehen, vor dem Verstrecken mittels einer Düse jeweils separat verknotet. Durch diese erste Verknotung kann der nachfolgende Prozess der zweiten Verknotung weiter verbessert werden, da die Struktur der einzelnen Filamente dadurch stabilisiert wird.With a further advantage, the filaments, which consist of a large number of continuous filaments, are each knotted separately by means of a nozzle before being stretched. This first knotting can further improve the subsequent process of the second knotting, since it stabilizes the structure of the individual filaments.
Grundsätzlich können die Düsen zur Verwirbelung und Verknotung mit einem Druck (Überdruck) von 0,01 bis 12 bar betrieben werden, wobei ein gasförmiges Medium, vorzugsweise Luft seitlich in die Düse eingeführt wird und zur Verwirbelung bzw. Verknotung der Filamente führt. Die besten Ergebnisse haben sich bei beiden Düsen gezeigt, wenn der Druck zwischen 0,01 bis 6 bar beträgt. Dabei wurde die höchste Farbklarheit erreicht.In principle, the nozzles for turbulence and knotting can be operated at a pressure (overpressure) of 0.01 to 12 bar, with a gaseous medium, preferably air, being introduced laterally into the nozzle and causing the filaments to be turbulent or knotted. The The best results have been shown with both nozzles when the pressure is between 0.01 and 6 bar. The highest color clarity was achieved.
Die Düse ist zum Verknoten der Filamente nach dem Paar der Einlaufrollen und vor den Streckwerksrollen angeordnet. Nach der vorherrschenden Meinung würde bei einem nachfolgenden Verstrecken und Texturieren die Farbklarheit des Garnes zurückgehen, da die einzelnen Filamente im weiteren Prozess miteinander verkleben können. Hier konnte durch eine sehr kurze Verweilzeit der Filamente in der Düse ein nachfolgendes Verkleben und Verbinden der Filamente unterbunden werden, so dass die erwünschte Farbklarheit ebenfalls zu Tage tritt.The nozzle is arranged after the pair of infeed rollers and before the drafting system rollers for knotting the filaments. According to the prevailing opinion, subsequent stretching and texturing would reduce the color clarity of the yarn, since the individual filaments can stick together as the process progresses. A very short dwell time of the filaments in the nozzle prevented subsequent sticking and bonding of the filaments, so that the desired color clarity also comes to light.
Vorteilhafterweise werden bei allen Ausführungsformen Streckwerksrollen nach der Texturiervorrichtung verwendet, die das Garn auf eine Temperatur von 0°C bis 80°C kühlen, vorzugsweise auf eine Temperatur von 0°C bis 50°C. Dies ist vorteilhaft für die weitere Fixierung des in der Texturierdüse gestauchten Garnes, aber auch die Farbklarheit kommt dabei sehr gut zur Geltung, bevor das Garn auf dem Wickler aufgespult wird.Advantageously, in all embodiments, drafting system rollers are used after the texturing device, which cool the yarn to a temperature of 0°C to 80°C, preferably to a temperature of 0°C to 50°C. This is advantageous for the further fixation of the yarn that has been compressed in the texturing nozzle, but the color clarity also comes into its own before the yarn is wound on the winder.
Das erfindungsgemäße Verfahren nach Anspruch 9 löst die Aufgabe dadurch, indem mindestens zwei Filamente in eine Streckvorrichtung geführt werden, dort von einem Paar Einlaufrollen zu mindestens zwei Paaren von Streckwerksrollen geführt und von diesen verstreckt werden, anschließend texturiert und auf einer Kühltrommel (9) gekühlt werden. Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass vor dem Texturieren die Filamente, die aus einer Vielzahl von Endlosfilamenten bestehen, jeweils separat verknotet werden. Die anschließende Konvergierung der Filamente zu einem Garn erfolgt in der Texturierdüse.The method according to the invention according to
Aufgrund der sehr kurzen Verweilzeit der Filamente beim Verknoten in der Düse kann überraschenderweise ein Verkleben und Verbinden der Filamente während des nachfolgenden Verwirbelns unterbunden werden, so dass eine sehr hohe Farbklarheit erreichbar ist.Due to the very short dwell time of the filaments during knotting in the nozzle, sticking and bonding of the filaments during the subsequent turbulence can surprisingly be prevented, so that a very high degree of color clarity can be achieved.
Die Verwirbelung der Filamente erfolgt zu einem Garn nach einem zweistufigen Verstrecken in der Texturierdüse. Da auf dem zweiten Paar von Streckwerksrollen die Geschwindigkeit der Filamente in der Streckvorrichtung am höchsten ist, führt die kurze Verweilzeit in der Düse, in der die Filamente jeweils separat verknotet werden dazu, dass sich die Filamente beim nachfolgenden Texturieren nicht miteinander vermischen oder teilverschmelzen, wodurch die Farbklarheit des Garns verbessert wird. Die Geschwindigkeit der Filamente beträgt dabei mindestens 1.700 m/min.The filaments are entangled to form a yarn after two-stage stretching in the texturing nozzle. Since the speed of the filaments in the drafting device is highest on the second pair of drafting rollers, the short dwell time in the nozzle, in which the filaments are knotted separately, means that the filaments do not mix with each other or partially fuse during the subsequent texturing, which means that the color clarity of the yarn is improved. The speed of the filaments is at least 1,700 m/min.
Eine Verstärkung des Effektes ergibt sich vorzugsweise dadurch, indem die Filamente, die aus einer Vielzahl von Einzelfilamenten bestehen, vor der Verstreckung separat verknotet werden. Jedes verknotete Filament weist dadurch eine stabilere Struktur auf, was sich beim anschließenden Texturieren und Verwirbeln hinsichtlich Farbklarheit besser auswirkt.The effect is preferably intensified if the filaments, which consist of a large number of individual filaments, are knotted separately before stretching. As a result, each knotted filament has a more stable structure, which has a better effect on color clarity during subsequent texturing and swirling.
Die Verknotung der Filamente erfolgt vor dem Verstrecken. Auch hier trägt die kurze Verweilzeit in der Düse dazu bei, dass die Filamente bei der weiteren Verarbeitung in der Texturierdüse nicht zum Verkleben neigen.The filaments are knotted before stretching. Here, too, the short dwell time in the nozzle means that the filaments do not tend to stick together during further processing in the texturing nozzle.
Vorzugsweise erfolgt bei beiden Ausführungsformen nach dem Texturieren eine Verstreckung bzw. Relaxierung des Garnes durch Streckwerksrollen, die das Garn auf eine Temperatur von 0°C bis 80°C kühlen, vorzugsweise auf eine Temperatur von 0°C bis 50°C. Damit lässt sich das in der Texturierdüse aufgebauschte Garn sehr gut fixieren, ohne dass die Farbklarheit vermindert wird.In both embodiments, after texturing, the yarn is preferably stretched or relaxed by drafting rollers, which cool the yarn to a temperature of 0°C to 80°C, preferably to a temperature of 0°C to 50°C. The yarn that is puffed up in the texturing nozzle can thus be set very well without reducing the color clarity.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigen:
- Figur 1:
- eine Teildarstellung auf ein erstes Ausführungsbeispiel einer Spinnstreckanlage;
- Figur 2:
- eine Teildarstellung auf ein zweites Ausführungsbeispiel einer Spinnstreckanlage;
- Figur 3:
- eine Teildarstellung auf ein drittes Ausführungsbeispiel einer Spinnstreckanlage.
- Figure 1:
- a partial representation of a first embodiment of a spin-draw system;
- Figure 2:
- a partial representation of a second embodiment of a spin-draw system;
- Figure 3:
- a partial representation of a third embodiment of a spin-draw system.
Zwischen dem Einlaufrollenpaar 3.1, 3.2 und dem Streckrollenpaar 5.1, 5.2 kann optional eine erste Düse 4 angeordnet sein, in der die sechs Filamente F1 - F6 seitlich mit einem gasförmigen Medium, vorzugsweise Luft, mit einem Druck von 0,01 - 12 bar beaufschlagt werden. Die Düse 4 weist für jedes Filament F1 - F6 eine separate Führung auf, so dass die Filamente F1 - F6 nicht miteinander in Berührung kommen. Innerhalb der Führung der Düse 4 werden die bis zu 1000 Endlosfilamente miteinander verknotet, so dass sechs separat verknotete Filamente F1 - F6 aus der Düse 4 auslaufen und auf das Streckwerksrollenpaar 5.1, 5.2 geführt werden.A
Beim Streckwerksrollenpaar 5.1, 5.2 werden die Filamente F1 - F6 bei einer Geschwindigkeit von 925 m/min auf eine Temperatur von 65°C aufgeheizt. Dieses Streckwerksrollenpaar 5.1, 5.2 ist als Monorolle ausgebildet, bei der nur die Streckwerksrolle 5.1 angetrieben ist. Die Streckwerksrolle 5.2 wird nicht angetrieben, sondern dreht sich über die Spannung der Filamente F1 - F6 mit. Die Streckwerksrollen 5.1, 5.2 können auch als Duorollen ausgeführt sein, bei denen beide Rollen angetrieben sind, und die im Wesentlichen einen gleich großen Außendurchmesser aufweisen. Dies hat den Vorteil, dass die stufenweise Erwärmung der Filamente F1 - F6 kontinuierlicher über eine längere Zeit erfolgen kann, was für die Umbildung der Molekülketten vorteilhaft ist. Die Oberflächen der Paare an Streckwerksrollen können dabei über ein nicht dargestelltes Heizsystem, beispielsweise ein elektrisches, dampf- oder flüssigkeitsbasiertes Heizsystem, erwärmt werden, wobei im nachfolgenden davon ausgegangen wird, dass die Filamente F1 - F6 während des mindestens zweimaligen Umlaufens um die Streckrollenpaare auch die Temperatur der Streckrollenpaare angenommen haben.In the case of the pair of drafting rollers 5.1, 5.2, the filaments F1-F6 are heated to a temperature of 65° C. at a speed of 925 m/min. This pair of drafting system rollers 5.1, 5.2 is designed as a mono-roller, in which only the drafting system roller 5.1 is driven. The drafting system roller 5.2 is not driven, but rotates with the tension of the filaments F1-F6. The drafting system rollers 5.1, 5.2 can also be designed as duo rollers in which both rollers are driven and which essentially have the same outside diameter. This has the advantage that the gradual heating of the filaments F1 - F6 can take place more continuously over a longer period of time, which is advantageous for the transformation of the molecular chains. The surfaces of the pairs of drafting rollers can be heated via a heating system (not shown), for example an electrical, steam-based or liquid-based heating system, it being assumed below that the filaments F1 - F6 during at least two turns around the drafting roller pairs also have assumed the temperature of the pairs of stretching rollers.
Von dem Streckrollenpaar 5.1, 5.2 werden die Filamente F1 - F6 zum Streckrollenpaar 6.1, 6.2 geführt, wobei sie vorher durch eine Führung 14 auf Abstand voneinander gehalten werden. Die weitere Verstreckung und Erwärmung auf dem Streckrollenpaar 6.1, 6.2, die als Duo ausgeführt sind, erfolgt bei einer Geschwindigkeit von 2.500 m/min und einer Erwärmung auf 170° C.The filaments F1 - F6 are guided from the pair of stretching rollers 5.1, 5.2 to the pair of stretching rollers 6.1, 6.2, having first passed them through a
Die Düse 7 weist für jedes Filament F1 - F6 ebenfalls eine separate Führung auf, so dass die Filamente F1 - F6 nicht miteinander in Berührung kommen. Innerhalb der Führung der Düse 7 werden die bis zu 1000 Endlosfilamente miteinander verknotet, so dass sechs separat verknotete Filamente F1 - F6 aus der Düse 7 auslaufen und in die Texturierdüse einlaufen. In der Düse 7 werden die sechs Filamente F1 - F6 durch ein eingeblasenes gasförmiges Medium, vorzugsweise Luft, bei einem Druck von 0,01 - 12 bar verknotet. Die Bildung der Garne G1, G2 erfolgt in der Texturierdüse 8, wobei insgesamt zwei gekräuselte Garne G1, G2 in der Texturierdüse 8 entstehen, die aus jeweils drei Filamente F1 - F3 und F4 - F6 mit jeweils einer Farbe pro Filament bestehen. Damit kann jedes Garn G1, G2 drei Filamente mit drei unterschiedlichen Farben aufweisen, die sich klar voneinander unterscheiden. Jedes Garn G1, G2 kann je nach Anlagenkonfiguration aber auch aus zwei oder vier Filamenten unterschiedlicher Farbe bestehen.The
Der Vorteil der Erfindung besteht darin, dass das Garn G1, G2 mit den drei Filamenten die Farben der Filamente klar anzeigt, ohne dass eine Vermischung stattfindet. Nach dem Stand der Technik wäre dies nicht möglich, da die einzelnen Filamente F1 - F3 und F4 - F6 miteinander verkleben würden, was zu einer unklaren Abgrenzung der Farben führt. Im Unterschied zum Stand der Technik hat sich überraschenderweise gezeigt, dass bei einer extrem kurzen Verweilzeit innerhalb der Düse 7 die nachfolgende Verklebung der Filamente F1 - F3 und F4 - F6 in der Texturierdüse verhindert werden kann. Da die Geschwindigkeit der Filamente F1 - F6 in der gesamten Streckvorrichtung 1 bei den Streckwerksrollen 6.1 und 6.2 am höchsten ist, ist gleichzeitig die Verweilzeit der Filamente F1 - F6 in der nachfolgend angeordneten Düse 7 am geringsten. Die Verweilzeit der Filamente F1 - F6 beträgt bei einer Geschwindigkeit der Filamente F1 - F6 um die Streckwerksrollen 6.1 und 6.2 von 2.500 m/min bei PA6 in der Düse 7 nur rund 5 Millisekunden.The advantage of the invention is that the yarn G1, G2 with the three filaments clearly displays the colors of the filaments without any intermingling. According to the state of the art, this would not be possible since the individual filaments F1-F3 and F4-F6 would stick together, which would lead to an unclear differentiation of the colors. In contrast to the prior art, it has surprisingly been shown that with an extremely short dwell time within the
Bei anderen Kunststoffen können die Parameter für die Streckwerksrollen 6.1, 6.2 beispielsweise wie folgt aussehen:
Vorteilhafterweise werden jetzt nur zwei Garne G1, G2 texturiert und weiter verstreckt, was die Anlage kompakter und preiswerter macht, als wenn sechs bzw. bis zu zwölf Filamente verarbeitet werden. Die nachfolgenden Streckwerksrollen können kürzer ausgeführt werden, was die Temperaturführung und die Lagerung vereinfacht.Advantageously, only two yarns G1, G2 are now textured and further drawn, which makes the system more compact and less expensive than when six or up to twelve filaments are processed. The following drafting system rollers can be made shorter, which simplifies temperature control and storage.
Nach der Düse 7 laufen die Filamente F1 - F6 in die nachfolgend angeordnete Texturierdüse 8, in der sie zu dem Garn G1 und G2 konvergieren, wodurch die Texturierdüse 8 nur über zwei Düsenkanäle verfügen muss. Hier werden bei einer Temperatur von 180°C zwei gekräuselte Garne G1, G2 hergestellt, deren Struktur auf der nachfolgenden Kühltrommel 9 eingefroren wird. Die Filamente F1 - F6 werden nach der Düse 7 also wieder in der Texturierdüse 8 erwärmt, bei PA6 von 170°C auf 180°C.After the
Eine nachfolgende leichte Verstreckung erfolgt mit kalten Streckwerksrollen 10.1, 10.2 und 11.1, 11.2. Die Geschwindigkeit des Garns beträgt auf der Streckwerksrolle 10.1 2.222 m/min. Die Streckwerksrolle 11.1 transportiert das Garn G1, G2 mit einer Geschwindigkeit von 2.257 m/min bei einer Temperatur von beispielsweise 20° C bis 80°C. Vorzugsweise können die Streckwerksrollen 10.1, 10.2, 11.1, 11.2 gekühlt sein.A subsequent slight stretching takes place with cold drafting rollers 10.1, 10.2 and 11.1, 11.2. The speed of the yarn on the drafting system roller 10.1 is 2,222 m/min. The drafting roller 11.1 transports the yarn G1, G2 with a Speed of 2,257 m/min at a temperature of, for example, 20°C to 80°C. The drafting system rollers 10.1, 10.2, 11.1, 11.2 can preferably be cooled.
Bei einer abschließenden Umlenkung durch den Umlenker 12 zum Wickler 13 wird das Garn G1, G2 mit einer Geschwindigkeit von 2201 m/min auf zwei Spulen aufgewickelt.In a final deflection by the
Der Vorteil dieser Anlage besteht darin, dass eine bestehende Anlage mit sechs bzw. bis zu zwölf einlaufenden Filamenten nur eine Texturierdüse 8 mit zwei bzw. bis zu vier Kanälen benötigt, so dass nachfolgend die Verstreckung mit den Streckwerksrollen 10.1, 10.2, 11.1, 11.2 kürzer gebaut werden kann.The advantage of this system is that an existing system with six or up to twelve incoming filaments only requires one
Im Vergleich zum Ausführungsbeispiel der
In einem Ausführungsbeispiel nach der
In dem Ausführungsbeispiel der
Nach
Die Düse 7 weist für jedes Filament F1 - F6 ebenfalls eine separate Führung auf, so dass die Filamente F1 - F6 nicht miteinander in Berührung kommen. Innerhalb der Führung der Düse 7 werden die bis zu 1000 Endlosfilamente miteinander verknotet, so dass sechs separat verknotete Filamente F1 - F6 aus der Düse 7 auslaufen und in die Texturierdüse einlaufen. In der Düse 7 werden die sechs Filamente F1 - F6 durch ein eingeblasenes gasförmiges Medium, vorzugsweise Luft, bei einem Druck von 0,01 - 12 bar miteinander verknotet. Die Bildung der Garne G1, G2 erfolgt in der Texturierdüse 8, wobei insgesamt zwei gekräuselte Garne G1, G2 in der Texturierdüse 8 entstehen, die aus jeweils drei Filamente F1 - F3 und F4 - F6 mit jeweils einer Farbe pro Filament bestehen. Damit kann jedes Garn G1, G2 drei Filamente mit drei unterschiedlichen Farben aufweisen, die sich klar voneinander unterscheiden. Jedes Garn G1, G2 kann je nach Anlagenkonfiguration aber auch aus zwei oder vier Filamenten unterschiedlicher Farbe bestehen.The
Der Vorteil der Erfindung bei dieser Ausführungsform besteht darin, dass das Garn G1, G2 mit den drei Filamenten die Farben der Filamente klar anzeigt, ohne dass eine Vermischung stattfindet. Nach dem Stand der Technik wäre dies nicht möglich, da die einzelnen Filamente F1 - F3 und F4 - F6 miteinander verkleben würden, was zu einer unklaren Abgrenzung der Farben führt. Im Unterschied zum Stand der Technik hat sich überraschenderweise gezeigt, dass bei einer extrem kurzen Verweilzeit innerhalb der Düse 7 die nachfolgende Verklebung der Filamente F1 - F3 und F4 - F6 verhindert werden kann. Da die Geschwindigkeit der Filamente F1 - F6 in der gesamten Streckvorrichtung 1 bei den Streckwerksrollen 6.1 und 6.2 am höchsten ist, ist gleichzeitig die Verweilzeit der Filamente F1 - F6 in der nachfolgend angeordneten Düse 7 am geringsten. Die Verweilzeit der Filamente F1 - F6 beträgt bei einer Geschwindigkeit der Filamente F1 - F6 um die Streckwerksrollen 6.1 und 6.2 von 2.500 m/min bei PA6 in der Düse 7 nur rund 5 Millisekunden.The advantage of the invention in this embodiment is that the yarn G1, G2 with the three filaments clearly shows the colors of the filaments without any intermingling. According to the state of the art, this would not be possible since the individual filaments F1-F3 and F4-F6 would stick together, which would lead to an unclear differentiation of the colors. In contrast to the prior art, it has surprisingly been shown that with an extremely short residence time within the
Bei anderen Kunststoffen können die Parameter für die Streckwerksrollen 6.1, 6.2 beispielsweise wie folgt aussehen:
Vorteilhafterweise werden jetzt nur zwei Garne G1, G2 texturiert und weiter verstreckt, was die Anlage kompakter und preiswerter macht, als wenn sechs bzw. bis zu zwölf Filamente verarbeitet werden. Die nachfolgenden Streckwerksrollen können kürzer ausgeführt werden, was die Temperaturführung und die Lagerung vereinfacht.Advantageously, only two yarns G1, G2 are now textured and further drawn, which makes the system more compact and less expensive than when six or up to twelve filaments are processed. The following drafting system rollers can be made shorter, which simplifies temperature control and storage.
Nach der Düse 7 laufen die Filamente F1 - F6 in die nachfolgend angeordnete Texturierdüse 8, in der sie zu dem gekräuselten Garn G1 und G2 konvergieren, wodurch die Texturierdüse 8 nur über zwei Düsenkanäle verfügen muss. Hier werden bei einer Temperatur von 180°C aus den Filamenten zwei gekräuselte Garne G1, G2 hergestellt, deren Struktur auf der nachfolgenden Kühltrommel 9 eingefroren wird. Die Filamente F1 - F6 werden nach der Düse 7 also wieder in der Texturierdüse 8 erwärmt, bei PA6 von 170°C auf 180°C.After the
Eine nachfolgende leichte Verstreckung erfolgt mit kalten Streckwerksrollen 10.1, 10.2 und 11.1, 11.2. Die Geschwindigkeit des Garns beträgt auf der Streckwerksrolle 10.1 2.222 m/min. Die Streckwerksrolle 11.1 transportiert das Garn G1, G2 mit einer Geschwindigkeit von 2.257 m/min bei einer Temperatur von 20° C bis 80°C. Vorzugsweise sind die Streckwerksrollen 10.1, 10.2 und 11.1, 11.2 gekühlt.A subsequent slight stretching takes place with cold drafting rollers 10.1, 10.2 and 11.1, 11.2. The speed of the yarn on the drafting system roller 10.1 is 2,222 m/min. The drafting system roller 11.1 transports the yarn G1, G2 at a speed of 2,257 m/min at a temperature of 20°C to 80°C. The drafting system rollers 10.1, 10.2 and 11.1, 11.2 are preferably cooled.
Bei einer abschließenden Umlenkung durch den Umlenker 12 zum Wickler 13 wird das Garn G1, G2 mit einer Geschwindigkeit von 2201 m/min auf zwei Spulen aufgewickelt.In a final deflection by the
Der Vorteil dieser Anlage besteht darin, dass eine bestehende Anlage mit sechs oder bis zu zwölf einlaufenden Filamenten nur eine Texturierdüse 8 mit zwei bzw. bis zu vier Kanälen benötigt, so dass nachfolgend die Verstreckung mit den Streckwerksrollen 10.1, 10.2, 11.1, 11.2 kürzer gebaut werden kann.The advantage of this system is that an existing system with six or up to twelve incoming filaments only requires one
Insgesamt können in der Anlage bis zu 12 Filamente (F1 - F12) unterschiedlicher Farbe mit jeweils bis zu 1000 Endlosfilamenten verarbeitet werden, so dass bis zu vier Garne (G1...G4) entstehen können, wobei jedes Garn aus zwei, drei oder vier Filamenten unterschiedlicher Farbe bestehen kann.A total of up to 12 filaments (F1 - F12) of different colors, each with up to 1000 continuous filaments, can be processed in the system, so that up to four yarns (G1...G4) can be produced, with each yarn consisting of two, three or four filaments of different colors.
Die Erfindung kann bei allen Polymerarten wie beispielsweise PP, PET, PA6, PA6.6 oder PBT verwendet werden.The invention can be used with all types of polymers such as PP, PET, PA6, PA6.6 or PBT.
Die Erfindung beschränkt sich in ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht. Sämtliche aus den Ansprüchen, der Beschreibung oder den Zeichnungen hervorgehenden Merkmale und/oder Vorteile, einschließlich konstruktiver Einzelheiten oder räumlicher Anordnungen, können sowohl für sich als auch in den verschiedensten Kombinationen erfindungswesentlich sein.The invention is not limited in its implementation to the preferred exemplary embodiment given above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different designs. All features and/or advantages resulting from the claims, the description or the drawings, including constructive ones Details or spatial arrangements can be essential to the invention both on their own and in a wide variety of combinations.
- 11
- Streckvorrichtungstretching device
- 22
- Präparationsvorrichtungpreparation device
- 3.1, 3.23.1, 3.2
- Einlaufrolleninfeed rollers
- 44
- Düsejet
- 5.1, 5.25.1, 5.2
- Streckwerksrollendrafting rollers
- 6.1, 6.26.1, 6.2
- Streckwerksrollendrafting rollers
- 77
- Düsejet
- 88th
- Texturiervorrichtungtexturing device
- 99
- Kühltrommelcooling drum
- 10.1, 10.210.1, 10.2
- Streckwerksrollendrafting rollers
- 11.1, 11.211.1, 11.2
- Streckwerksrollendrafting rollers
- 1212
- Umlenkungdeflection
- 1313
- Wicklerwinder
- 1414
- Führungguide
- F1...FnF1...Fn
- Filamentefilaments
- G1...GnG1...Gn
- Garnyarn
Claims (14)
- Device for producing a multicoloured yarn from differently coloured filaments which consist of a plurality of endless filaments, wherein at least two filaments (F1 ... Fn) are guided into a drawing device (1), where they are guided by a pair of intake rollers (3.1, 3.2) to at least two pairs of drawing unit rollers (5.1, 5.2; 6.1, 6.2) and are drawn by the drawing unit rollers, downstream of which there is arranged a texturing device (8) having a cooling drum (9), characterised in that there is arranged solely upstream of the texturing device (8) at least one nozzle (4, 7) in which each filament (F1 ... Fn) is separately interlaced, and at least one yarn (G1, G2) is formed from the filaments (F1 ... Fn) in the texturing nozzle (8), wherein the filaments (F1 ... Fn) are drawn on the pair of drawing unit rollers (6.1, 6.2) that is arranged directly upstream of the nozzle (7) at a speed of at least 1700 m/min.
- Device according to claim 1, characterised in that the nozzle (7) is arranged downstream of the second pair of drawing unit rollers (6.1, 6.2) and upstream of the texturing nozzle (8).
- Device according to claim 1 or 2, characterised in that the nozzle (4) is arranged downstream of the pair of intake rollers (3.1, 3.2) and upstream of the drawing unit rollers (5.1, 5.2; 6.1, 6.2).
- Device according to any one of the preceding claims, characterised in that a gaseous medium at a pressure of from 0.01 to 12 bar, preferably at a pressure of from 0.01 to 6 bar, is blown into the nozzle (4, 7).
- Device according to any one of the preceding claims, characterised in that the pair of drawing unit rollers (6.1, 6.2) is in the form of duo rollers.
- Device according to any one of the preceding claims, characterised in that there is arranged upstream of the drawing unit rollers (5.1, 5.2) a guide (14) which guides each filament (F1 ... Fn) separately.
- Device according to any one of the preceding claims, characterised in that there is arranged downstream of the texturing device (8) having the cooling drum (9) at least one pair of drawing unit rollers (10.1, 10.2; 11.1, 11.2) which cool the yarn (G1, G2).
- Device according to claim 7, characterised in that the at least one pair of drawing unit rollers (10.1, 10.2; 11.1, 11.2) cools the yarn (G1 ... Gn) to a temperature of from 0°C to 80°C, preferably to a temperature of from 0°C to 50°C.
- Method for producing a multicoloured yarn from differently coloured filaments which consist of a plurality of endless filaments, wherein at least two filaments (F1 ... Fn) are guided into a drawing device (1), where they are guided by a pair of intake rollers (3.1, 3.2) to at least two pairs of drawing unit rollers (5.1, 5.2; 6.1, 6.2) and are drawn by the drawing unit rollers, then textured and cooled on a cooling drum (9), characterised in that, solely prior to the texturing, the filaments (F1 ... Fn) are each interlaced separately, and at least one yarn (G1 ... Gn) is formed from the individual filaments (F1 ... Fn) in the downstream texturing nozzle (8), wherein the filaments (F1 ... Fn) are drawn on the pair of drawing unit rollers (6.1, 6.2) that is arranged directly upstream of the nozzle (7) at a speed of at least 1700 m/min.
- Method according to claim 9, characterised in that the interlacing of the filaments (F1 ... Fn) is carried out after a two-stage drawing.
- Method according to claim 9 or 10, characterised in that the interlacing of the filaments (F1 ... Fn) is carried out prior to a drawing.
- Method according to any one of claims 9 to 11, characterised in that the interlacing of the filaments (F1 ... Fn) is carried out by means of a gaseous medium at a pressure of from 0.01 to 12 bar, preferably at a pressure of from 0.01 to 6 bar.
- Method according to any one of claims 9 to 12, characterised in that the yarn (G1 ... Gn), after the texturing, is cooled by at least one pair of drawing unit rollers (10.1, 10.2; 11.1, 11.2).
- Method according to claim 13, characterised in that the yarn (G1 ... Gn) is cooled to a temperature of from 0°C to 80°C, preferably to a temperature of from 0°C to 50°C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017100487.4A DE102017100487A1 (en) | 2017-01-12 | 2017-01-12 | Apparatus and method for producing a multicolor yarn |
PCT/EP2018/050641 WO2018130608A1 (en) | 2017-01-12 | 2018-01-11 | Device and method for producing a multicolor yarn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3568510A1 EP3568510A1 (en) | 2019-11-20 |
EP3568510B1 true EP3568510B1 (en) | 2023-04-26 |
Family
ID=60972228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18700410.6A Active EP3568510B1 (en) | 2017-01-12 | 2018-01-11 | Device and method for producing a multicolored yarn |
Country Status (6)
Country | Link |
---|---|
US (1) | US11479884B2 (en) |
EP (1) | EP3568510B1 (en) |
CN (1) | CN110177906B (en) |
DE (1) | DE102017100487A1 (en) |
ES (1) | ES2945664T3 (en) |
WO (1) | WO2018130608A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12071713B2 (en) | 2020-06-16 | 2024-08-27 | Aladdin Manufacturing Corporation | Systems and methods for producing a bundle of filaments and/or a yarn |
WO2021257733A1 (en) * | 2020-06-16 | 2021-12-23 | Aladdin Manufacturing Corporation | Systems and methods to provide color enhanced yarns |
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US3671623A (en) * | 1967-08-07 | 1972-06-20 | Teijin Ltd | Method of drawing and heat treating synthetic filaments |
DE2446139A1 (en) * | 1974-09-27 | 1976-04-15 | Barmag Barmer Maschf | METHOD OF MANUFACTURING TEXTURED YARN |
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JP2692513B2 (en) * | 1992-11-10 | 1997-12-17 | 東レ株式会社 | Method and apparatus for producing polyester fiber |
KR950701991A (en) * | 1993-04-30 | 1995-05-17 | 클라우스 퓌팅, 리이터 핑슈텐 | Drawing Process |
DE59601798D1 (en) * | 1995-02-23 | 1999-06-10 | Barmag Barmer Maschf | Process for spinning, drawing and winding a synthetic thread |
EP0754790B1 (en) * | 1995-07-19 | 2006-10-04 | Saurer GmbH & Co. KG | Method and apparatus for heating a synthetic yarn |
CA2194843A1 (en) * | 1996-01-12 | 1997-07-13 | Hans-Joachim Weiss | Method and apparatus for producing a multicoloured yarn from differently coloured part-threads of endless filament |
US5804115A (en) * | 1996-12-13 | 1998-09-08 | Basf Corporation | One step, ready-to-tuft, mock space-dyed multifilament yarn |
DE19730977A1 (en) * | 1997-07-18 | 1999-01-21 | Guetermann Ag | Process for the production of air-textured sewing threads |
US6013223A (en) * | 1998-05-28 | 2000-01-11 | Biax-Fiberfilm Corporation | Process and apparatus for producing non-woven webs of strong filaments |
US6105224A (en) * | 1998-09-28 | 2000-08-22 | O'mara Incorporated | Bulk yarns having improved elasticity and recovery, and processes for making same |
DE50008281D1 (en) * | 1999-03-10 | 2004-11-25 | Saurer Gmbh & Co Kg | spinning device |
US6638614B2 (en) * | 1999-11-18 | 2003-10-28 | Prisma Fibers Inc. | Apparent space-dyed yarns and method for producing same |
DE10110601A1 (en) * | 2000-04-11 | 2001-10-25 | Barmag Barmer Maschf | Production of a texturized filament yarns divides the extruded filament bundle into equal part-bundles to be texturized and then combined into a yarn for winding |
AU2001273255A1 (en) * | 2000-07-13 | 2002-01-30 | Prisma Fibers, Inc. | Apparent twist yarn system and apparatus and method for producing same |
FR2835261B1 (en) * | 2002-01-31 | 2004-03-26 | Rieter Icbt | DEVICE FOR CONTINUOUS WIRING AND FIXING OF WIRES FOLLOWED BY COMPLEMENTARY HEAT TREATMENT |
DE10236359A1 (en) | 2002-08-08 | 2004-02-19 | Neumag Gmbh & Co. Kg | Polymer multifilament thread spinning process and texturizing assembly has two-stage thread ruffling unit |
EP1411014A1 (en) * | 2002-10-17 | 2004-04-21 | Giudici S.p.a. | Method and device for the production of covered elastic yarn and for automatically replacing feeding spools |
US20050147784A1 (en) * | 2004-01-06 | 2005-07-07 | Chang Jing C. | Process for preparing poly(trimethylene terephthalate) fiber |
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EP1844186B1 (en) * | 2005-02-04 | 2010-07-28 | Oerlikon Textile GmbH & Co. KG | Method and device for producing a crimped composite thread |
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ATE490355T1 (en) * | 2006-05-08 | 2010-12-15 | Oerlikon Textile Gmbh & Co Kg | SPINN-TRECK TEXTURING MACHINE |
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-
2017
- 2017-01-12 DE DE102017100487.4A patent/DE102017100487A1/en not_active Withdrawn
-
2018
- 2018-01-11 US US16/477,462 patent/US11479884B2/en active Active
- 2018-01-11 CN CN201880006684.2A patent/CN110177906B/en active Active
- 2018-01-11 WO PCT/EP2018/050641 patent/WO2018130608A1/en unknown
- 2018-01-11 ES ES18700410T patent/ES2945664T3/en active Active
- 2018-01-11 EP EP18700410.6A patent/EP3568510B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102017100487A1 (en) | 2018-07-12 |
WO2018130608A1 (en) | 2018-07-19 |
US11479884B2 (en) | 2022-10-25 |
EP3568510A1 (en) | 2019-11-20 |
CN110177906B (en) | 2022-02-01 |
ES2945664T3 (en) | 2023-07-05 |
US20190360129A1 (en) | 2019-11-28 |
CN110177906A (en) | 2019-08-27 |
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