EP0731196B1 - Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens - Google Patents
Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens Download PDFInfo
- Publication number
- EP0731196B1 EP0731196B1 EP96102184A EP96102184A EP0731196B1 EP 0731196 B1 EP0731196 B1 EP 0731196B1 EP 96102184 A EP96102184 A EP 96102184A EP 96102184 A EP96102184 A EP 96102184A EP 0731196 B1 EP0731196 B1 EP 0731196B1
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- EP
- European Patent Office
- Prior art keywords
- thread
- heating
- process according
- spinning
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 56
- 238000009987 spinning Methods 0.000 title claims description 31
- 238000004804 winding Methods 0.000 title description 19
- 238000010438 heat treatment Methods 0.000 claims description 123
- 230000008569 process Effects 0.000 claims description 34
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- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
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Images
Classifications
-
- 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
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
-
- 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
- D02J13/001—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
- 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 invention relates to a method and a device for spinning, Stretching and winding a synthetic thread according to the generic term of claims 1 and 19, respectively.
- the remaining tendency to shrink is triggered in particular by heat or cooking treatment, so too leave or set as desired for further processing and is cheap, but is unaffected by this heat shrinking behavior to be able to wind up.
- the advantage of this solution is that the textile technology Properties by the shrink-free treatment according to the invention are not be affected.
- the thread after the expiration still a high tendency to shrink, e.g. B. expressed as cooking shrinkage, exhibit.
- the delivery plants, which feed the thread into the shrink treatment zone lead or remove from it, need not be heated. This is not just a significant simplification of the machine but also allows a more economical procedure.
- the thread is only subjected to a thread pull, the lower than that required to stretch the already oriented thread Traction is.
- the heating surface temperature is preferably higher than 350 ° C, preferably higher than 200 ° C for threads made of polypropylene.
- this makes it possible to thread the thread in the spinning zone and / or the shrink zone and / or the winding zone with very little To pull the thread without the risk of being restless Thread run or a winder formation on the godet or another Process disorder exists.
- the embodiment according to claim 4 serves the purpose of threading into one lead to a precise predetermined distance from the heating surface. A A distance of 0.5 to 3.5 mm is aimed for.
- the embodiment according to claim 6 has the advantage that the thread tension set very evenly and thus the shrinkage is set very specifically can be.
- the method according to the invention is suitable for all those used Polymers.
- a high quality polyester spool can be made become from a thread that, after unwinding, still boils down of more than 20%.
- the shrink free treatment according to the invention is of particular importance for the polyamides.
- a particularly advantageous method for stretching according to claim 12 is that the threads of a godet at high speed withdrawn from the spinneret at a speed of more than 3,500 m / min and be guided through a narrow heating pipe.
- the heating pipe due to the tension and heating of the thread, the drawing.
- This process was previously used for materials with a high tendency to shrink, especially nylon and polypropylene, not feasible because the With this type of drawing, threads have a high tendency to bobbin shrinkage receive.
- the method according to claim 13 is particularly characterized in that that the thread despite a low thread tension in the stretching zone precisely localized stretch point and fully stretchable becomes.
- the procedure is to form a precisely fixed yield point to train according to claim 14.
- the inventive device according to claim 19 is distinguished characterized in that the heating surface despite the high thread speeds is very short, especially between 300 and 1000 mm. Good, uniform heat conduction can be achieved in the design according to claim 20.
- the tube can be slotted for threading be.
- the embodiment according to claim 21 allows simple operation, in particular, however, also the selection of the distance with which the Thread is led to the heating surface. This distance can be at this Embodiment depending on the thread material, the titer, the Filament number, the thread speed, the set temperature of the The heating surface can be specified by the thread guide.
- the embodiment according to claim 21 allows a quiet thread run in particular a stepped temperature control adapted to the process.
- the first stage is, for example, in the temperature range between 450 and 550 ° C and the second stage in the temperature range adjusted between 400 and 500 ° C.
- temperatures are correspondingly lower, preferably around 100 ° C to 200 ° C.
- shrink treatment i.e. the Cold shrink tendency
- reduce or eliminate to a harmless level without the warm shrinking tendency, i.e. Boiling shrink or hot air shrinkage.
- a thread 1 is spun from a thermoplastic material.
- the thermoplastic material is fed to the extruder 3 through a filling device 2.
- the extruder 3 is driven by a motor 4.
- the motor 4 is controlled by a motor controller 49.
- the thermoplastic material is melted in the extruder 3.
- the deformation work (shear energy) introduced into the material by the extruder 3 serves for this purpose.
- a heater e.g. B. provided in the form of a resistance heater 5, which is controlled by a heating control 50.
- a pressure sensor 7 is provided for measuring the melt pressure for pressure-speed control of the extruder 3, the melt reaches a gear pump 9, which is driven by pump motor 44.
- the pump motor 44 is controlled by the pump controller 45 in such a way that the pump speed can be set sensitively.
- the pump 9 conveys the melt flow to the heated spin box 10, on the underside of which the spinneret 11 is located.
- the melt emerges from the spinneret 11 in the form of fine filament strands 12.
- the filament strands pass through a cooling shaft.
- an air flow 51 is directed transversely or radially onto the filament sheet 12 by blowing. This cools the filaments.
- the filament sheet becomes a thread 1 summarized.
- the thread is removed from the cooling shaft 15 and from the spinneret 11 deducted by a godet 54.
- the thread wraps around the trigger godet 54 multiple.
- An interleaved part of the godet 54 serves this purpose arranged overflow roller 55.
- the overflow roller 55 is freely rotatable.
- the Galette 54 is powered by a godet motor with a preset Speed driven. This withdrawal speed is around one Many times higher than the natural exit speed of the filaments 12 from the spinneret. This is the thread of a very high tension subjected to stretching.
- the stretching will supported by the heating tube 20.
- the heating tube 20 has a length of e.g. B. 1,150 m.
- the godet 54 is followed by a second godet 16 with an overflow roller 17 the thread 1 is wound up in a winder 30 to form a bobbin 33.
- a heating device 8 is provided between the godets 54 and 16 according to this invention.
- the heater 8 is an elongated one Rail to which the thread is guided at a short distance. This Heating rail is divided into several stages, two are shown can be heated independently. On details received later.
- the thread 1 arrives from the take-off godet 16 in FIG. 1 or FIG. 3 the so-called "head thread guide” 25 and from there into the traversing triangle 26.
- the traversing device is not shown in FIG. 1. It These are wings rotating in opposite directions, which thread 1 back and forth over the length of the coil 33. In doing so, it wraps around Thread a contact roller behind the traversing device (not shown).
- the contact roller lies on the surface of the coil 33.
- she is used to measure the surface speed of the coil 33.
- Die Coil 33 is formed on a sleeve 35.
- the sleeve 35 is on one Spindle 34 clamped.
- the winding spindle 34 is driven by a spindle motor and spindle control so driven that the surface speed the coil 33 remains constant. For this purpose, the The speed of the freely rotatable contact roller is sensed.
- the traversing device is also a usual reverse thread roller with one in the reverse thread groove over the Traversing area back and forth traversing thread guide can be.
- the godet 16 has a peripheral speed that is not higher is that of the godet 54. There is therefore no stretching but a relaxation treatment.
- the first Heating zone 27 of the heating rail was at 330 ° C and the second heating zone 28 heated to 150 ° C. It could be between godets 16 and 54 sufficient relaxation treatment can be achieved in this way, the continued in the take-up zone.
- the temperatures of the first heating zone 27 are preferably somewhat higher than that of the second Heating zone 28, preferably between 250 and 550 ° C.
- the temperature the second heating zone 28 is preferably between 150 and 450 ° C.
- the thread tension between the godets 54 and 16 could under Consideration of the speed difference and the shrinkage forces can be set to less than 0.1 cN / dtex. This area is special advantageous for triggering the cold shrink tendency or for their Disposal. Due to the temperature control, especially in the second Heating zone 28, the warm shrink tendency could also be targeted Be influenced without affecting the winding harmful cold shrink tendency was adversely affected. It is notes that in front of the godet 54 another godet 21 with overflow rollers 22 can be arranged. This is shown in Figure 3.
- a heating device 24 is shown in FIG. 3 shown. It has a heating surface 29 which is the thread 1 is facing. The thread 1 is without touch, but in closer Neighborhood with a distance of 0.5 to 5 mm along this heating surface 29 out. The surface temperature is set higher than the melting temperature of the polymer concerned.
- the crystal structure and increase in length stability can also be produced in a method according to Figure 1 in that the Heating tube 20 is replaced - as shown in Fig. 4 - by an elongated Surface along which the thread has no substantial contact is performed, the surface temperature - as indicated in Figure 3 - Above the melting temperature of the polymer.
- stretching force is not caused by air friction as in the case of the heating tube 20 but by thread friction on the guide body or thread guide 132 applied.
- 4 shows as a further modification that the thread several when entering the drawing zone (two are shown) thread guides 132 arranged directly one behind the other, so that the stretching point of the thread is localized due to the heating trains.
- the method variant 4 the heat treatment between the godets 16 and the winding 30 made. Since the thread in the Shrink treatment zone with very low thread tension can be, the setting is possible that the thread tension at the same time is suitable as a winding tensile force. Because the process flow after Fig. 4 otherwise corresponds to that in Figures 1 and 3, is so far referred to the description there.
- the thread 1 becomes godless withdrawn directly from the spinneret 11 by means of the winding 30.
- the take-off speed is preferably above 5,000 m / min between 6,000 and 7,500 m / min.
- the thread 1 is with the Spiders stretched at the same time.
- the heat treatment is carried out using the Heating device 8, which immediately before winding 30 on a Place of thread 1 is arranged at which the thread has already cooled.
- the spinning and stretching process can be very threads susceptible to shrinkage can be wound up without difficulty.
- the device parts not mentioned will refer to the description refer to Figs. 1 and 3.
- FIG. 6 shows a modification of the method which relates to the shrink heat treatment of the method according to FIG. 4 is not differs and thus referred to the description of FIG. 4 becomes.
- the godets with overflow rollers can be replaced by two or more, driven rollers, which the thread partly in the s sense and / or. z senses, i.e. wrapped in successive opposite directions.
- the godet 54 is unheated and also the godet 16 does not necessarily have to be heated. In contrast to usual procedures in which all godets for stripping, stretching and relaxing the polypropylene thread are heated.
- one of the two godets 54 or 16 also e.g. can be heated at approx. 100 ° C to reduce the tendency to warm shrink deliberately reduce.
- the process according to the invention is in the case of the usual polymers, ie especially polyethylene terephthalate, polytrimethylene terephthalate, polypropylene and polyamide (preferably PA6 or PA6.6, but also PA blends different PA types) applicable with success.
- polypropylene with a narrow molecular weight distribution in the range less than 3 in particular Types made on the basis of metallocene become very good Results achieved.
- spinning is i.e. Spinning and stretching in one operation and in the same zone, as shown in Fig. 1, only possible, especially using a heating pipe.
- this also has a beneficial effect can be that the thread is subjected to an additional steam treatment becomes.
- the heating device 8 is located directly at the entrance a superheated steam nozzle 23 is provided, through the superheated steam on the thread is blown.
- This superheated steam condenses on the previously cold one Thread out immediately and then evaporates. With the condensation the corresponding amount of heat supplied to the thread.
- the subsequent evaporation prevents a very sudden heating up of thread.
- This gentle treatment of the thread could be beneficial and in any case leads to a reduction in the heat shrinkage.
- the heat shrink can be adjusted with this treatment. Nevertheless, the subsequent shock-like heat treatment entails high temperature to reduce cold shrinkage.
- the invention As far as can be seen, the effect does not depend on the Use the hot steam nozzle.
- the heating device 8 shown in FIGS. 2a to 2c consists of a rail 114 made of a material and provided with two longitudinal grooves 112, which is heat resistant and scale resistant and temperatures in the range over 450 ° C for longer periods without any noteworthy changes he wears.
- the rail 114 consists essentially of one flat lower part 116, which represents the heating surface 117. With the The lower part is connected to three walls 118, 120, 122, between which the Longitudinal grooves 112 are.
- the lower part 116 can also have two or more than three upstanding walls, between which then have fewer or more grooves.
- the outer Walls 118 and 120 can be made with the lower part 116, for example Screw connection.
- each a heating element 124, 126 preferably in the form of a rod-shaped electrical resistance, which is extends over the entire length of the rail 114 or in length can also be divided into several sections to provide targeted heating profiles to enable.
- the heating elements 124, 126 are not shown Provide plug contacts for the connection with a power source.
- the located between the outer walls 118, 122 and from the lower part 116 consists of either vertically protruding middle wall 120 from one piece or is like the outer walls 118, 120 with connected to the lower part 116.
- rail 114 may be similar from an extruded profile Cross-section, in which the lower part 116 and walls 118, 120, 122 are formed in one piece and which for receiving Heating elements in a known manner with recesses, holes, bendable Rag or the like is provided.
- the rails 118, 120, 122 are A at regular intervals Recesses or bores 128 with essentially the same Recessed depth, namely those located in the middle wall 122 Recesses 128 with respect to the recesses 128 in the side walls 118 and 220 offset by a distance A.
- the recesses have a circular cylindrical shape.
- the recesses 128 are each of the longitudinal grooves 112 cut secantially so that the walls 118, 120, 122 a slot 133 located on the longitudinal grooves 112, i. H. a rectangular opening.
- the recesses are perpendicular to the groove base and correspond to their depth the height of the walls 118, 120, 122 receiving them. In certain circumstances it may be advantageous to use the recesses to slant.
- each of the recesses 128 there is a thread guide 132
- Cross-sectional shape the cross-section of the recess in size and shape corresponds and fixed in order to comply with narrow tolerances, however rests with play on the recess wall.
- the one from the drawing recognizable distance between the wall of the holes and the outer surface the thread guide is exaggerated only for the sake of clarity shown.
- a part of a protrudes in the area of the respective slot 130 each thread guide 132 into the longitudinal grooves 112, in such a way that successively arranged on opposite sides of the grooves 112 Thread guide 132 to a certain extent, e.g. 0.1 to 1 mm, over a central plane running parallel to the walls 118, 120, 122 to step.
- the width of the slots 133 is smaller than that largest cross-sectional dimension, d. h .: as the diameter of the thread guide 132 so that they do not slide out of the recesses 128 can.
- both the recesses 128 as well as the thread guides 132 of circular cylindrical cross section are conceivable.
- the embodiment has a correspondingly narrow lying tolerances fit between recesses 128 and Thread guides 132. Therefore, separate fasteners are unnecessary to secure the thread guides 132 against axial and radial displacements, which means a special effort resulting from the use of fasteners would be avoided.
- the embodiment 2 can also have game or transition fits. On the one hand, these fits are tight enough so that the thread guides lie immovably in their recesses.
- Metal caps are used to hold in the axial direction 152.
- the side walls 118, 120, 122 have on their upper edge Holding grooves 154 or a head 156 which is wider than the respective Wall.
- the sheet metal caps 152 have a cup-shaped cross section Profile, so that in the case of the central wall 120 into the holding grooves 154 protrude or in the case of the side walls 118, 120 the wall head Reach around 156.
- the sheet metal caps are elongated Profiles formed, the length of which corresponds to the length of the heating rail.
- the thickness of the wall heads 156 or the position of the holding grooves 154 and the appropriate dimensioning of the metal caps is such that the Sheet metal caps fix the thread guides in the axial direction.
- the thread guides consist of the usual materials such as silicon, Titanium or aluminum oxides or of nitrided or hard chrome-plated Steel or the like
- the thread guides 132 are in the area where they are from protrude from the recess slot 133 on their from the lower part 116 opposite ends beveled as shown at 134.
- the heating device 8 each have a V-shaped groove 136, which makes it possible to a thread 138 in the stretched state without any special measures or precautions between the successive ones Thread guide 132 in one with respect to the heating surface 112 and the lower part 116 essentially vertical movement between the thread guides 132 to lead.
- FIG. 2a and Fig. 2c At the ends or at several other points (so in Fig. 2a and Fig. 2c) of the heating rail 114 with essentially the same distance there is a spacer 140 bridging the groove 112 in each case.
- These thread guide bodies have an upward thread guide surface on, which serves the distance between the thread and the Maintain the groove base.
- These rod-shaped spacers 140 are shown in FIG Cross bores anchored in the walls 118, 120, 122.
- the heating device 8 can consist of two in the thread running direction consecutive rail sections 114a and 114b exist. These are of different lengths, but otherwise have the same cross-sectional shape.
- the purpose of such a two-part arrangement can be the heating device 8 different in different length ranges to heat the thread 138 at a property that meets its characteristics Treat heat profile. That means: It can also more than the two sections shown are applied. It is it is of particular importance that the angle that the two heating rails form each other at every processing point of the spinning and stretching machine is set identically so that on all processing points Threads of the same quality are generated.
- a heating rail 158 is used for heating rails around a rail that is the length of the two heating rails.
- the mounting rail has a U-shaped cross section.
- the heating rails are on the bottom of the mounting rail with spacers 160 attached. By dimensioning the spacers and their position relative to the heating rail, the inclination of the heating rail in the Set with respect to the straight mounting rail 158.
- the two heating rails have opposite inclinations and form together an obtuse angle.
- the mounting rail 158 thus serves on the one hand for the precise fastening of the two heating rails. Since the Fastening rail 158 has a U-shaped profile, but also encompasses it the two heating rails. Therefore, the mounting rail 158 also serves the temperature equalization over the length and width of the heating rails.
- the mounting rail is surrounded with insulation.
- rod-shaped spacers 140 can be provided that the longitudinal groove 112 on the groove bottom, d. H. of the Bridge heating surface 117 and the thread run in an exact Specify the distance to the base of the groove.
- the Circumferential grooves have the same depth over the circumference, so they are concentric to the thread guides 132.
- the circumferential grooves with a varying depth over the course of the circumference, e.g. B. in that the groove base is circular cylindrical but is eccentrically cut to the thread guides 132.
- the thread guides 132 for example, via a linkage connecting them (not shown) twist together and to the same extent.
- the heating device is in an insulating box (not shown) housed in which they are in a heat-insulating material, e.g. Glass fibers, is embedded.
- the insulating box can be used with a Flap that allows it to be opened for access to offer the heater and insert the thread. It also serves the insulating box with its overlying the heater 110 Parts for axially fixing the thread guides 132 in the rail 114.
- the insulation box is provided with slots that align with the center plane and the bevels 134 of the thread guides 132 and align it allow a thread 138 to be treated between the thread guides 132 to bring.
- the slits are wear-resistant on their side walls Insulation plates provided.
- the contact surfaces, with which the thread guides touch the thread a relative have a large diameter.
- the zigzag line has in which the thread through the overlap U of the successive Thread guide is guided, a relatively small amplitude relatively large distance A between two adjacent thread guides. This ensures that the wrap angle with which the thread the thread guides or the contact surfaces formed on them loops, is also small in total.
- the heating rail has on it from the side facing away from the longitudinal groove 112, two grooves, which are essentially lie below the thread guide grooves 112. Are in these grooves Heating elements 124 and 126 inserted.
- the heating elements are through a mounting plate 159 that extends the entire length of the heating rail stretches, clamped.
- the mounting plate also has this Grooves that surround the heating elements 124, 126.
- the distance between the thread and the heating surface 117 is very small. Of the The distance is between 0.5 and 5 mm. Preferably is the upper value no more than 3.5 mm around a good heat transfer and to achieve an accurate, trouble-free temperature control. Out For practical reasons, the lower limit is 0.5 mm. This takes place at the correspondingly high temperature of the heating rail shock-like heating of more than 350 ° C.
- the thread guide 132 can at least partially be omitted or removed if they have a negative impact. On the one hand, they help to calm down of the thread, but hardly to a heating of the thread by Running contact with and on the other hand have only a low friction the thread due to the low wrap.
- the main thing, however, is contact-free guidance in close proximity to the high-heated heating surface.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
- Fig. 1
- zeigt schematisch ein Spinnverfahren und die dazu erforderlichen Vorrichtungsteile;
- Fig. 2
- zeigt eine Ausführungsform einer Heizeinrichtung;
- Fig. 3
- zeigt ein modifiziertes Spinnverfahren und die dazu erforderlichen Vorrichtungsteile;
- Fig. 4
- zeigt ein modifiziertes Spinnverfahren und die dazu erforderlichen Vorrichtungsteile;
- Fig. 5
- zeigt ein modifiziertes Spinnverfahren und die dazu erforderlichen Vorrichtungsteile;
- Fig. 6
- zeigt ein modifiziertes Spinnverfahren und die dazu erforderlichen Vorrichtungsteile.
- 1
- Faden
- 2
- Fülleinrichtung
- 3
- Extruder
- 4
- Motor
- 5
- Widerstandsheizung
- 6
- Schmelzeleitung
- 7
- Drucksensor
- 8
- Heizeinrichtung
- 9
- Zahnradpumpe
- 10
- Spinnkopf, Spinnkasten
- 11
- Spinndüse
- 12
- Filamente, Filamentstrang
- 15
- Kühlschacht
- 16
- Galette
- 17
- Überlaufrolle
- 20
- Heizrohr
- 21
- Galette
- 22
- Überlaufrolle
- 23
- Dampfdüse
- 24
- Heizeinrichtung
- 25
- Kopffadenführer
- 26
- Changierdreieck
- 27
- erste Heizzone
- 28
- zweite Heizzone
- 29
- Heizoberfläche
- 30
- Aufwicklung
- 31
- Verstreck-Heizung
- 33
- Spule
- 34
- Spulspindel
- 35
- Spulhülse
- 44
- Pumpenmotor
- 45
- Pumpensteuerung
- 49
- Motorsteuerung
- 50
- Heizungssteuerung
- 51
- Luftstrom
- 54
- Galette
- 55
- Überlaufrolle
- 56
- Fadenführer
- 112
- Längsnut, Heiznut
- 114
- Schiene
- 116
- Unterteil
- 117
- Heizoberfläche
- 118
- Wand
- 120
- Trennwand
- 122
- Wand
- 124
- Heizelement
- 126
- Heizelement
- 128
- Ausnehmung
- 130
- Schlitz
- 132
- Fadenführer, Führungskörper
- 133
- Schlitz
- 134
- Anschrägung
- 136
- Rille
- 138
- Faden
- 140
- Fadenführer, Abstandhalter
- 142
- Umfangsnut
- 152
- Blechklappen
- 154
- Nut, Wandlungskopf
- 156
- Kopf
- 158
- Befestigungsschiene
- 159
- Befestigungsplatte
- 160
- Abstandshalter
Claims (30)
- Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens, bei dem der Faden (1) nach der Verstreckung und vor dem Aufspulen zur Verminderung der Schrumpfneigung einer Wärmebehandlung unterworfen wird,
dadurch gekennzeichnet, daß
die Wärmebehandlung dadurch erfolgt, daß der Faden (1) in enger Nachbarschaft jedoch im wesentlichen ohne Berührung entlang einer langgestreckten Heizoberfläche (117) geführt wird,
daß
die Oberflächentemperatur der Heizoberfläche (117) höher ist als die Schmelztemperatur des Fadens (1),
vorzugsweise höher als 100 Kelvin oberhalb der Schmelztemperatur des Fadens (1), vorzugsweise zwischen 200 und 300 Kelvin oberhalb der Schmelztemperatur des Fadens (1),
und daß der Faden (1) dabei einer Fadenzugkraft unterworfen wird, die niedriger als die zur plastischen Verformung erforderliche Fadenzugkraft ist,
vorzugsweise nicht höher als 0,3 cN/dtex,
vorzugsweise im Bereich von 0,1-0,2 cN/dtex,
wobei der aufgespulte Faden (1) eine Warm-Schrumpfneigung (Kochschrumpf) von mehr als 3 % hat. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß
der aufgespulte Faden (1) eine Warmschrumpfneigung von 5 bis 12 % hat. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß
der aufgespulte Faden (1) eine Warmschrumpfneigung von mehr als 12 %, vorzugsweise mehr als 20 % hat und vorzugseise im Bereich zwischen 30 bis 40 % liegt. - Verfahren nach einem der Ansprüche 1, 2 oder 3,
dadurch gekennzeichnet, daß
daß der Faden (1) entlang der Heizoberfläche (117) durch einen oder mehrere kurze Führungskörper (132), die längs der Heizstrecke verteilt sind, geführt wird. - Verfahren nach Anspruch 1 oder 4,
dadurch gekennzeichnet, daß
die Wärmebehandlung zwischen einer Galette (16) und der Aufwicklung (30) erfolgt. - Verfahren nach Anspruch 1 oder 4,
dadurch gekennzeichnet, daß
die Wärmebehandlung zwischen zwei Galetten (16, 54) erfolgt. - Verfahren nach Anspruch 5 oder 6,
dadurch gekennzeichnet, daß
die Galetten (16, 54) unbeheizt sind. - Verfahren nach Anspruch 1 oder 4
dadurch gekennzeichnet, daß
die Wärmebehandlung galettenlos zwischen Spinnkasten (10) und der Aufwicklung (30) erfolgt, wobei die Abzugsgeschwindigkeit oberhalb 5000 m/min liegt, vorzugsweise zwischen 6000 und 7500 m/min. - Verfahren nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, daß
daß der synthetische Faden (1) aus Polyester insbesondere Polyethylenterephthalat oder Polytrimethylenterephthalat besteht. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß
daß der synthetische Faden (1) aus einem Polyamid (PA6 oder PA6.6 oder einem Blend verschiedener PA-Typen) besteht. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß
daß der synthetische Faden (1) aus einem Polypropylen besteht. - Verfahren nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß
der Faden (1) nach dem Austritt aus der Spinndüse (11) und dem Kühlen jedoch vor der Wärmebehandlung durch eine langgestreckte Heizzone in Form eines engen Heizrohres (20) oder einer engen Heiznut (112) berührungslos geführt und verstreckt wird. - Verfahren nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, daß
der Faden (1) vor der Wärmebehandlung, die zur Verminderung der Schrumpfneigung dient, einer Verstreckung unterworfen wird, wobei der Faden (1) in dieser Verstreckzone in enger Nachbarschaft, jedoch im wesentlichen ohne Berührung entlang einer langgestreckten Heizoberfläche (29) geführt wird,
und wobei die Oberflächentemperatur der Heizoberfläche (29) höher ist als die Schmelztemperatur des Fadens vorzugsweise höher als 100 Kelvin oberhalb der Schmelztemperatur des Fadens, vorzugsweise zwqischen 200 und 300 Kelvin oberhalb der Schmelztemperatur des Fadens,
und wobei die Fadenzugkraft zu einer plastischen Verformung des Fadens (1) führt. - Verfahren nach Anspruch 13,
dadurch gekennzeichnet, daß
der Faden bei Eintritt in die Verstreckzone über Führungkörper (132) mit Teilumschlingung geführt wird. - Verfahren nach Anspruch 12,
dadurch gekennzeichnet, daß
der Faden (1) aus Polypropylen besteht und daß der Faden zunächst gemäß Anspruch 12 verstreckt wird und sodann eine Nachverstrekkung gemäß Anspruch 13 unterworfen wird. - Verfahren nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, daß
der Faden (1) mit einer Geschwindigkeit von mehr als 5000 m/min von der Spinndüse (11) abgezogen und dadurch gleichzeitig mit dem Spinnen verstreckt wird, daß der Faden (1) vor dem Aufwickeln der Wärmebehandlung unterworfen wird an einer Stelle, an welcher der Faden verstreckt ist und daß der Faden dabei im wesentlichen der Fadenzugkraft unterworfen wird, mit welcher der Faden von der Spinndüse (11) abgezogen wird. - Verfahren nach Anspruch 16,
dadurch gekennzeichnet, daß
die Wärmebehandlung zwischen zwei Galetten (21, 54) erfolgt, die der Faden (1) teilweise umschlingt. - Verfahren nach Anspruch 17,
dadurch gekennzeichnet, daß
der Faden (1) die Galette (21 oder 54) s-förmig umschlingt. - Spinn-, Streck- und Aufwickelmaschine zum Spinnen, Verstrecken und Aufwickeln eines synthetischen Fadens, bei welcher der Faden (1) mittels einer unbeheizten Galette (54) aus der Streckzone abgezogen und im Anschluß an die Galette (54) mittels einer Heizeinrichtung (8) vor dem Aufwickeln bei niedriger Fadenzugkraft erwärmt wird,
dadurch gekennzeichnet, daß
die Heizeinrichtung (8) eine langgestreckte Heizoberfläche (117) mit Fadenführern (132), durch welche der Faden (1) weitestgehend berührungsfrei, jedoch in enger Nachbarschaft zu der Heizoberfläche 117) geführt wird,
und daß die Heizoberfläche (117) auf eine Temperatur höher als die Schmelztemperatur des Fadens (1) vorzugsweise höher 100 Kelvin oberhalb der Schmelztemperatur des Fadens, vorzugsweise zwischen 200 und 300 Kelvin oberhalb der Schmelztemperatur des Fadens eingeregelt wird. - Vorrichtung nach Anspruch 19,
dadurch gekennzeichnet, daß
die Heizeinrichtung (8) durch ein von außen beheiztes, den Fadenlauf umschließendes Heizrohr (20) gebildet wird, in welchem der Faden (1) berührungsfrei geführt wird. - Vorrichtung nach Anspruche 19,
dadurch gekennzeichnet, daß
die Heizeinrichtung (8) durch eine langgestreckte U-förmige oder V-förmige Schiene (114) gebildet wird, in deren Längsnut (112) der Faden (1) im wesentlichen kontaktfrei geführt wird. - Vorrichtung nach einem der Anspruch 19 oder 21,
dadurch gekennzeichnet, daß
die Heizeinrichtung (8) aus mehreren langgestreckten U-förmigen oder V-förmigen Schienen (114a, 114b) gebildet wird. - Vorrichtung nach Anspruch 22,
dadurch gekennzeichnet, daß
die Schienen (114a, 114b) einen stumpfen Winkel zwischen sich einschließen, und
daß im Bereich der benachbarten Enden der beiden Schienen (114a, 114b) Fadenführer (132) angeordnet sind, die dazu dienen, den Faden (1) in der Längsnut (112) beider Schienen im wesentlichen kontaktfrei zu führen. - Vorrichtung nach einem der Ansprüche 19 bis 22,
dadurch gekennzeichnet, daß
in der Verstreckzone eine Verstreck-Heizung (31) angeordnet ist, die durch ein von außen beheiztes, den Fadenlauf umschließendes Heizrohr (20) gebildet wird, in welchem der Faden (1) berührungsfrei geführt wird. - Vorrichtung nach Anspruch 24,
dadurch gekennzeichnet, daß
die Verstreck-Heizung (31) eine langgestreckte Heizoberfläche (117) mit Fadenführern (132), durch welche der Faden weitgehend berührungsfrei, jedoch in enger Nachbarschaft zu der Heizoberfläche (117) geführt wird,
und daß die Heizoberfläche (117) auf eine Temperatur höher als die Schmelztemperatur des Fadens, vorzugsweise höher 100 Kelvin oberhalb der Schmelztemperatur des Fadens (1), vorzugsweise zwischen 200 und 300 Kelvin oberhalb der Schmelztemperatur des Fadens eingeregelt wird. - Vorrichtung nach Anspruch 25,
dadurch gekennzeichnet, daß daß
die Verstreck-Heizung (31) unmittelbar im Fadeneintrittsbereich mehrere Fadenführer (132) aufweist, die der Faden teilumschlingt. - Vorrichtung nach einem der Ansprüche 19 bis 26,
dadurch gekennzeichnet, daß
die Verstreckzone sich ohne Zwischenschaltung einer Abzugeinrichtung, Galette oder dergl. unmittelbar an die Spinnzone anschließt. - Vorrichtung nach einem der Ansprüche 19 bis 27,
dadurch gekennzeichnet, daß
der Faden (1) durch eine Abzugeinrichtung, Galette (21) oder dergl. aus der Spinnzone abgezogen und in die Streckzone gefördert wird, und daß die Abzugeinrichtung vorzugsweise unbeheizt ist. - Vorrichtung nach einem der Ansprüche 19 bis 22,
dadurch gekennzeichnet, daß
die Verstreckzone bei Spinnen mit einer Geschwindigkeit von mehr als 5000 m/min in der Spinnzone liegt und daß die Heizeinrichtung (8) vor der Aufwicklung aber in der Spinnzone angeordnet ist. - Vorrichtung nach Anspruch 29,
dadurch gekennzeichnet, daß
die Heizeinrichtung (8) zwischen zwei Galetten (16, 54)angeordnet ist.
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19506369A DE19506369A1 (de) | 1994-02-28 | 1995-02-23 | Verfahren und Vorrichtung zum Heizen eines synthetischen Fadens |
DE19506369 | 1995-02-23 | ||
DE19526106 | 1995-07-18 | ||
DE19526106 | 1995-07-18 | ||
DE19530818 | 1995-08-23 | ||
DE19530818 | 1995-08-23 | ||
DE19542699 | 1995-11-16 | ||
DE19542699 | 1995-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0731196A1 EP0731196A1 (de) | 1996-09-11 |
EP0731196B1 true EP0731196B1 (de) | 1999-05-06 |
Family
ID=27438064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96102184A Expired - Lifetime EP0731196B1 (de) | 1995-02-23 | 1996-02-14 | Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0731196B1 (de) |
CN (1) | CN1065006C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10213921B4 (de) * | 2002-03-28 | 2006-10-12 | Röhm Gmbh | Verfahren zum Spinnen und Aufspulen von Polyester-Multifilament-Garnen unter Verwendung von Spinnadditiven sowie durch das Spinn-Verfahren erhältliche Polyester-Multifilament-Garne |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2283174B1 (de) * | 2008-05-23 | 2012-01-04 | Oerlikon Textile GmbH & Co. KG | Verfahren zum schmelzspinnen, verstrecken und aufwickeln eines multifilen fadens sowie eine vorrichtung zur durchführung des verfahrens |
JP5523462B2 (ja) * | 2008-08-27 | 2014-06-18 | エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | マルチフィラメント糸を溶融紡糸し、延伸しかつ巻き上げる方法並びにこの方法を実施する装置 |
RU2019117747A (ru) * | 2016-11-08 | 2020-12-10 | Браскем С.А. | Способ изготовления полипропиленовой нити, способ и система нагрева полипропиленовой нити, способ и система нагрева и вытяжки полипропиленовой нити, система вытяжки полипропиленовой нити и способ, и система охлаждения полипропиленовой нити |
CN113043583B (zh) * | 2021-03-12 | 2023-01-31 | 山洋自动化设备(苏州)有限公司 | 一种介入手术用导丝热收缩机 |
CN113481686A (zh) * | 2021-07-28 | 2021-10-08 | 枝江锦河科技有限公司 | 一种口罩耳带纺织系统及其使用方法和一种口罩耳带 |
CN115354403B (zh) * | 2022-02-25 | 2023-06-27 | 桐昆集团浙江恒通化纤有限公司 | 一种耐磨低收缩率涤纶牵伸丝的生产方法 |
CN115182077B (zh) * | 2022-07-28 | 2024-05-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | 高稳定性碳纳米管纤维连续强化装置、系统及其应用 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR207251A1 (es) * | 1975-05-22 | 1976-09-22 | Monsanto Co | Procedimiento para producir un hilado partiendo de un polimero de poliamida termoplastica para la hilatura en estado de fusion |
ES8504982A1 (es) * | 1984-06-15 | 1985-05-01 | Calvete Capdevila Eugenio | Perfeccionamientos en los sistemas de estiraje de filamentos sinteticos |
CN1036415A (zh) * | 1988-07-20 | 1989-10-18 | 中国纺织大学 | 聚酯纤维的一步法制造方法及装置 |
DE4018200C2 (de) * | 1989-06-14 | 1996-06-05 | Barmag Barmer Maschf | Verfahren und Vorrichtung zum Heizen eines Fadens in der Falschzwirnzone einer Falschzwirntexturiermaschine |
EP0539866B1 (de) * | 1991-10-26 | 1999-01-07 | Barmag Ag | Verfahren zum Abziehen eines endlosen, synthetischen Fadens |
JP3071922B2 (ja) * | 1991-12-24 | 2000-07-31 | ユニチカ株式会社 | 複合加工糸の製造方法 |
US5605644A (en) * | 1993-06-15 | 1997-02-25 | Barmag Ag | Yarn heating apparatus |
-
1996
- 1996-02-14 EP EP96102184A patent/EP0731196B1/de not_active Expired - Lifetime
- 1996-02-16 CN CN961025069A patent/CN1065006C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10213921B4 (de) * | 2002-03-28 | 2006-10-12 | Röhm Gmbh | Verfahren zum Spinnen und Aufspulen von Polyester-Multifilament-Garnen unter Verwendung von Spinnadditiven sowie durch das Spinn-Verfahren erhältliche Polyester-Multifilament-Garne |
Also Published As
Publication number | Publication date |
---|---|
EP0731196A1 (de) | 1996-09-11 |
CN1138111A (zh) | 1996-12-18 |
CN1065006C (zh) | 2001-04-25 |
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