EP1404910B2 - Dispositif de frisage par compression - Google Patents

Dispositif de frisage par compression Download PDF

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Publication number
EP1404910B2
EP1404910B2 EP02740756A EP02740756A EP1404910B2 EP 1404910 B2 EP1404910 B2 EP 1404910B2 EP 02740756 A EP02740756 A EP 02740756A EP 02740756 A EP02740756 A EP 02740756A EP 1404910 B2 EP1404910 B2 EP 1404910B2
Authority
EP
European Patent Office
Prior art keywords
yarn
channel
chamber wall
plug
coating
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
Application number
EP02740756A
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German (de)
English (en)
Other versions
EP1404910A1 (fr
EP1404910B1 (fr
Inventor
Mathias STÜNDL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1404910A1 publication Critical patent/EP1404910A1/fr
Publication of EP1404910B1 publication Critical patent/EP1404910B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet

Definitions

  • the invention relates to a device for compression crimping of a synthetic multifilament yarn according to the preamble of claim 1.
  • a generic device is for example from the EP 0 554 642 A1 known.
  • the known device For upsetting crimping of a multifilament yarn, the known device has a delivery nozzle and a stuffer box arranged downstream of the delivery nozzle.
  • the thread is conveyed by means of the delivery nozzle in the stuffer box, compressed to a yarn plug and curled.
  • the delivery nozzle is supplied with a delivery medium, preferably a hot gas, which requires the thread within a thread channel to the stuffer box.
  • the thread plug is formed.
  • the multifilament lies in loops on the surface of the yarn plug and is compacted by the pumped medium, which can escape from the stuffer box above the yarn plug.
  • the chamber wall of the stuffer box has at the periphery a plurality of slot-shaped openings through which the fluid can escape.
  • the plug formation must take place in the stuffer box with very high uniformity.
  • the frictional forces resulting from the relative movement of the yarn plug in the stuffer box have a significant influence on the texturing process.
  • the braking effect generated by the friction between the yarn plug and the chamber wall depends essentially on the nature of the chamber wall.
  • the braking effect decreases, however, it can come to the point that the yarn plug is conveyed out of the stuffer box due to low frictional forces. The texturing process then breaks down.
  • the yarn plug is no longer or no longer evenly conveyed out of the stuffer box.
  • An uneven ripple of the thread is the result.
  • uneven crimping occurs when a stick-slip effect is applied in the stuffer box.
  • JP 04-343727 discloses a Stauchk syndromeselvorraumraum, in which a yarn is passed through a heating nozzle before entering the stuffer box, in which the crimping, wherein there is no leading to wear of the chamber walls thread plugging.
  • US 3,808,654 discloses an apparatus for upset crimping a synthetic thread having a stuffer box with chamber walls whose surface is coated with tetrafluoroethylene.
  • US-A 3,935,621 discloses a device for crimping a synthetic thread by means of a rotating cylinder.
  • the invention is based on the finding that the deposition of the thread on the thread stopper surface by the forming loops and bows substantially affects the uniformity of the crimps.
  • the balance of forces between the conveying effect and the braking effect generated by the yarn thread on the thread stop must be kept constant.
  • the device according to the invention essentially in that the gas-permeable chamber wall has a friction surface made of a wear-resistant material on the inside facing the yarn plug inside.
  • the invention thus has the advantage that the plug formation can be controlled solely by monitoring the pumped medium by, for example, pressure monitoring.
  • the wear-resistant material on the surface of the chamber wall can basically be formed by two variants.
  • the friction surface is formed by a coating applied to the surface of the chamber wall.
  • This coating could for example consist of a ceramic material or a chromium oxide or a carbon coating.
  • the friction surface is made by the chamber wall made of a ceramic material educated.
  • the chamber wall can be produced for example from ceramic materials such as zirconium oxide or aluminum oxide or a combination of both.
  • the gas-permeable wall is resistant to corrosion and little susceptible to contamination.
  • deposits can be avoided by preparation residues. Even after a maintenance break the same friction conditions are achieved when switching on the device when starting the device.
  • another section with a closed chamber wall also on the side facing the yarn plug inside with a contact surface formed from a wear-resistant material is provided.
  • the contact surface could be formed by a coating applied to the surface of the chamber wall or by the chamber wall made of a ceramic material.
  • the thread tension reduction in the delivery nozzle was reduced by the friction of the thread to the wall. This can then be achieved at the same delivery pressure a higher yarn tension, which has a higher reliability of the texturing process result, or a yarn tension level can be achieved with lower pressure, with a lower discharge pressure leads to a lower consumption of the fluid.
  • the wear-resistant material of the contact surfaces within the delivery nozzle may be formed by coatings or by ceramic base materials.
  • the delivery nozzle can also be advantageously made entirely of a ceramic.
  • the inlet of the thread channel in the delivery nozzle is formed by a guide insert.
  • the guide insert which may be made of a ceramic material or could carry on its surface a coating forms an extension of the thread channel an inlet channel.
  • the delivery nozzle could also have a guide insert forming the outlet of the thread channel which is also made of a ceramic material or has a coating on its surface.
  • the thread leaves the delivery nozzle through an outlet channel of the guide insert.
  • a conveying medium preferably hot air or hot gas
  • the air inlet is formed in the thread channel by a guide insert according to an advantageous embodiment of the invention.
  • the guide insert contains a guide channel, which is aligned in extension of the thread channel.
  • the guide insert also consists of a ceramic material or carries a coating on its surface.
  • the advantageous development of the invention according to claim 11 is preferred to use, in which the guide insert has an additional insert in the inlet region of the guide channel in the air inlet. This can stabilize the thread guide and avoid in the thread returning disturbing influences.
  • a conveyor for guiding the yarn plug is provided.
  • the conveying means and the cooling device have a coating on the contact surfaces contacted by the thread stopper.
  • Fig. 1 schematically a first embodiment of the device according to the invention is shown in a cross section.
  • the device consists of a delivery nozzle 1 and a delivery nozzle 1 downstream compression chamber 2.
  • the delivery nozzle 1 includes a thread channel 3, which forms an outlet 21 at one end and an outlet 24 at the opposite end.
  • the delivery nozzle 1 is connected by a supply line 17 to a pressure source (not shown here).
  • a pressure source not shown here
  • the supply line 17 is connected to the thread channel 3.
  • the air inlet 16 is formed by a plurality of bores, which supplies a conveying medium in the thread running direction, which is indicated by an arrow, the thread channel 3.
  • With the outlet 24 of the thread channel 3 opens into a plug channel 31 of the stuffer box second
  • the compression chamber 2 is formed by a delivery nozzle 1 facing portion 7.1 with a yarn inlet 5 and a portion 7.1 downstream section 7.2 with a stopper outlet 6.
  • a plug channel 31 is formed by a gas-permeable chamber wall 8.
  • the gas-permeable chamber wall 8 includes a plurality of fins 9, which are arranged at a small distance from each other in an annular manner.
  • the lamellae 9 are held by the lamella holder 10.1 at the upper end of the section 7.1 and by the holder 10.2 at the lower end of the section 7.1.
  • the fins 9 and the holders 10.1 and 10.2 are arranged in a housing 11, wherein the housing 11 is closed to the outside and is connected through an opening 32 with a suction 12.
  • the lamellae 9 On the side facing a thread plug 13, the lamellae 9 each have a friction surface 14.
  • the lamellae 9 are made of a ceramic material, so that the friction surfaces 14 are made of a low-wear material.
  • a closed chamber wall 15 which forms a plug channel 33.
  • the plug channel 33 is made larger in diameter than the plug channel 31 in the region of the gas-permeable chamber wall 8.
  • the plug channel 33 forms the plug outlet 6 at its end.
  • Fig. 1 illustrated embodiment of the device according to the invention is shown with a threadline to illustrate the function of the device.
  • the yarn 4 is conveyed through the delivery nozzle 1 in the yarn channel 3 by a conveying medium supplied via the air inlet 16.
  • the thread 4 enters via the inlet 21 in the thread channel 3 a.
  • the conveying medium used is preferably hot air or a hot gas.
  • a thread plug 13 forms in the plug channel 31.
  • the thread 4, which consists of a plurality of filaments is deposited on the surface of the yarn plug 13, so that the filaments form loops and bows.
  • the pumped medium is sucked through between the slats 9 through the opening 32.
  • the thread stopper 13 forming in the stopper channel 31 bears against the friction surfaces 14 of the lamellae 9.
  • the frictional forces and the delivery pressure of the delivery medium acting on the thread stopper 13 are substantially in equilibrium, so that the yarn stop height inside the stopper channel 31 remains essentially the same.
  • the fins 9 are made of a ceramic material, the force equilibrium acting on the yarn plug 13 is maintained substantially by keeping the pressure of the pumped medium constant.
  • the yarn plug 13 enters after leaving the plug channel 31 in the plug channel 33, which is formed by the closed chamber wall 15.
  • the closed chamber wall 15, which could be formed, for example, as a tube, serves only to guide the yarn plug 13 to a downstream, not shown cooling device.
  • the plug channel 33 is formed larger than the plug channel 31, so that only small frictional forces acting on the yarn plug 13. Wear protection is therefore unnecessary.
  • Fig. 2 is another example not belonging to the invention schematically shown in a cross section.
  • the example is essentially identical in construction to the previous embodiment Fig. 1 , so that only the main differences are shown below. For clarity, the components are provided with the same functions with identical reference numerals.
  • the delivery nozzle 1 has for additional acceleration of the pumped medium in the thread channel 3 has a narrowest cross section, which is formed directly below the air inlet 16 Thus, the fluid is accelerated to a flow velocity which is higher than the speed of sound.
  • the thread channel 3 opens into the plug channel 32, which is formed by a cylinder body 18.
  • the cylinder body 18 is arranged in the first section 7.1 of the stuffer box 2.
  • the cylinder body 18 has distributed over the circumference a plurality of longitudinal slots 34, whereby the plug channel 31 is connected to a formed by the housing 11 and the cylinder body 18 annular space 35. At the annular space 35, the housing 11 is connected to an exhaust 12 via the opening 32.
  • the cylinder body 18 On the side facing the yarn plug 13, the cylinder body 18 has a coating 19.
  • the coating 19, which forms the friction surface 14 for guiding a yarn plug preferably consists of a ceramic material.
  • metallic hard chrome layers or carbon compounds are also possible.
  • the cylinder body 18 may also be made of an aluminum material, which receives a friction surface 14 forming aluminum oxide coating.
  • the Longitudinal slots 34 extend at least over a portion of the cylinder body 18th
  • the second section 7.2 of the stuffer box is formed by the closed chamber wall 15 containing the plug channel 33.
  • the plug channel 33 forms at the end of the plug outlet 6.
  • the closed chamber wall 15 has on the side facing the yarn plug 13 side a contact surface 20, which also carries a wear-resistant coating 35.
  • the compression chamber 2 is associated with a delivery means 29 directly at the stopper outlet 6, which is formed from two opposing rollers.
  • the conveying means 29 guides the yarn plug 13 to a cooling device 30 arranged below the conveying means 29.
  • the cooling device 30 could be formed, for example, from a cooling drum, at the circumference of which the yarn plug is cooled. Both the conveyor 29 and the cooling device 30 are provided at their contact surfaces 37 and 38 with a coating.
  • Fig. 2 The function of in Fig. 2
  • the illustrated example is essentially identical to the previous embodiment Fig. 1 , so that was dispensed with the presentation of the threadline. In this case, however, the yarn plug formation is additionally influenced by the conveyor 29.
  • FIG. 3 schematically an embodiment of a delivery nozzle is shown in a cross-sectional view, as for example in the embodiment according to Fig. 1 or in the example Fig. 2 could be used.
  • the delivery nozzle is here in Fig. 3.1 in a disassembled state and in Fig. 3.2 shown in a mounted state.
  • the following description applies, insofar as no explicit reference is made to one of the figures, for both figures.
  • the delivery nozzle 1 has in the region of the inlet 21 in the region of the air inlet 16 and in the region of the outlet 24 in each case an incision 36.1, 36.2 and 36.3.
  • the cuts 36.1, 36.2 and 36.3 are connected to each other via a thread channel 3. Between the incision 36.1 and 36.2, a pressure chamber 39 is formed in the delivery nozzle 1.
  • the incision 36.1 in the inlet region of the delivery nozzle 1 serves to receive a guide insert 22.1.
  • the Ftihrungs disrupt 22.1 forms an inlet channel 23 which is aligned in extension of the thread channel 3.
  • the guide insert 22.1 is preferably made of a ceramic material. However, it is also possible that in the region of the inlet channel 23 of the guide insert 22.1 carries a coating.
  • the guide insert 22.2 forms on the one hand the air inlet 16, through which the fluid is introduced from the pressure chamber 39 into a guide channel 26 of the guide insert 22.2.
  • the guide channel 26 of the Fühungs tenues 22.2 is aligned in extension of the thread channel 3 on the inlet side of the guide insert 22 an insert 27 is provided which forms an inlet channel 28.
  • the inlet channel 28 has a smaller diameter than the subsequent guide channel 26.
  • the insert 27 and the guide insert 22.2 can also be advantageously made of a ceramic material or provided with a coating.
  • the guide insert 22.3 On the outlet side of the delivery nozzle 1, the guide insert 22.3 is embedded in the recess 36.3.
  • the guide insert 22.3 forms an outlet channel 25, which is aligned in extension of the thread channel 3 and the outlet 24 of the delivery nozzle 1 forms.
  • the guide insert 22.3 is also preferably made of a ceramic material
  • Fig. 3 illustrated delivery nozzle consists in particular in the highly stressed by the thread contact points and friction points of a wear-resistant material, so that a stable and uniform yarn guide and yarn delivery is achieved. In addition, the coefficients of friction between the thread and the contact points or friction points are considerably reduced.
  • the delivery nozzle 1 and the stuffer box 2 are preferably each formed from two halves which are non-positively connected to each other during operation.
  • the device according to the invention is thus characterized in particular by high wear protection and thus stable friction conditions as well as insensitivity to preparations of the thread as well as a considerable extension of the cleaning cycles due to the insensitivity to soiling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Insulated Conductors (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (11)

  1. Dispositif de frisage à refoulement d'un fil multifilaire synthétique (4) avec une buse convoyeuse (1), qui comprend un canal (3) de fil pour guider et convoyer le fil (4) et avec un bac à refoulement (2) agencé sur l'extrémité du canal (3) de fil pour former et recevoir un bouchon de fil (13), le bac à refoulement contenant un orifice d'entrée (5) de fil et un orifice de sortie de bouchon (6) et qui contient entre l'orifice d'entrée du fil (5) et l'orifice de sortie de bouchon (6) une section (7.1) avec une paroi de chambre perméable au gaz (8), caractérisé en ce que la paroi de chambre perméable au gaz (8) est formée par une multiplicité de lamelles (9) agencées de façon annulaire à faible distance les unes aux autres et présente une surface de friction (14) en un matériau résistant à l'usure sur la face intérieure tournée vers le bouchon de fil (13), dans quel cas les surfaces de contact contactées par le fil à l'intérieur de la buse convoyeuse (1) sont formées au moins partiellement d'un matériau résistant à l'usure en forme d'un revêtement ou en forme d'un matériau céramique.
  2. Dispositif selon la revendication 1, caractérisé en ce que la surface de friction (14) est formée par un revêtement (19) appliqué sur la surface de la paroi de chambre (8).
  3. Dispositif selon la revendication 1, caractérisé en ce que la paroi de chambre (8) consiste en un matériau céramique qui forme la surface de friction (14) sur la surface de la paroi de chambre (8).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le bac à refoulement (2) a une section supplémentaire (7, 2) avec une paroi de chambre fermée (15), qui se trouve en aval de la section (7.1) avec la paroi de chambre perméable au gaz (8) et en ce que la paroi de chambre fermée (15) a sur la face intérieure tournée vers le bouchon de fil (13) une surface de contact (20) en un matériau résistant à l'usure.
  5. Dispositif selon la revendication 4, caractérisé en ce que la surface de contact (20) est formée par un revêtement (35) appliqué sur la surface de la paroi de chambre (15).
  6. Dispositif selon la revendication 4, caractérisé en ce que la paroi de chambre (15) consiste en un matériau céramique qui forme la surface de contact (20) sur la surface de la paroi de chambre (15).
  7. Dispositif selon la revendication 1, caractérisé en ce que la buse convoyeuse (1) a un insert de guidage (22.1) formant l'orifice d'entrée (21) du canal de fil (3), lequel insert de guidage (22.1) forme un canal d'entrée (23) aligné en prolongement du canal de fil (3) et en ce que l'insert de guidage (22.1) est fabriqué d'un matériau céramique ou porte un revêtement sur sa surface.
  8. Dispositif selon la revendication 1 ou 7, caractérisé en ce que la buse convoyeuse (1) a un insert de guidage (22.3) formant l'orifice de sortie (24) du canal de fil (3), lequel insert de guidage (22.3) forme un canal de sortie (25) aligné en prolongement du canal de fil (3) et en ce que l'insert de guidage (22.1) est fabriqué d'un matériau céramique ou porte un revêtement sur sa surface.
  9. Dispositif selon l'une des revendications 1, 7 ou 8, caractérisé en ce que la buse convoyeuse (1) a un insert de guidage (22.2) formant l'entrée d'air (16) dans le canal de fil (3), lequel insert de guidage (22.3) forme un canal de guidage (26) aligné en prolongement du canal de fil (3) et en ce que l'insert de guidage (22.1) est fabriqué d'un matériau céramique ou porte un revêtement sur sa surface.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'insert de guidage (22.2) comprend un insert (27) formant l'admission du canal de guidage (26), lequel insert (27) forme un canal d'entrée (28) aligné en prolongement du canal de guidage (26) et en ce que l'insert de guidage (27) est fabriqué d'un matériau céramique ou porte un revêtement sur sa surface.
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce qu'un moyen convoyeur (29) et/ou un dispositif de refroidissement (30) sont agencés en aval du bac à refoulement (2) en direction de trajet du fil et en ce que le moyen convoyeur (29) et le dispositif de refroidissement (30) ont un revêtement sur les surfaces de contact (37, 38) contactées par le bouchon de fil.
EP02740756A 2001-07-03 2002-06-28 Dispositif de frisage par compression Expired - Lifetime EP1404910B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10132148 2001-07-03
DE10132148 2001-07-03
PCT/EP2002/007161 WO2003004743A1 (fr) 2001-07-03 2002-06-28 Dispositif de frisage par compression

Publications (3)

Publication Number Publication Date
EP1404910A1 EP1404910A1 (fr) 2004-04-07
EP1404910B1 EP1404910B1 (fr) 2007-01-31
EP1404910B2 true EP1404910B2 (fr) 2011-06-15

Family

ID=7690404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02740756A Expired - Lifetime EP1404910B2 (fr) 2001-07-03 2002-06-28 Dispositif de frisage par compression

Country Status (6)

Country Link
US (1) US7318263B2 (fr)
EP (1) EP1404910B2 (fr)
CN (1) CN100362153C (fr)
AT (1) ATE353109T1 (fr)
DE (1) DE50209409D1 (fr)
WO (1) WO2003004743A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59912950D1 (de) * 1998-08-27 2006-01-26 Saurer Gmbh & Co Kg Vorrichtung und Verfahren zum Stauchkräuseln eines synthetischen Fadens
DE102004022469A1 (de) * 2004-05-06 2005-12-01 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Stauchkräuseln eines multifilen Fadens
DE102004043773A1 (de) * 2004-09-10 2006-04-13 Saurer Gmbh & Co. Kg Keramikdüse und Vorrichtung zum Stauchkräuseln eines synthetischen multifilen Fadens
US7152288B1 (en) * 2005-07-07 2006-12-26 Celanese Acetate Llc Stuffer box crimper and a method for crimping
DE102014002318A1 (de) * 2014-02-19 2015-08-20 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Kräuseln multifiler Fäden

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EP0249804A2 (fr) † 1986-06-17 1987-12-23 Maschinenfabrik Rieter Ag Tuyères de traitement de fils
DE19635736A1 (de) † 1996-09-03 1998-03-05 Saxonia Umformtechnik Gmbh Diamantähnliche Beschichtung
EP1116806A2 (fr) † 2000-01-12 2001-07-18 SML Maschinengesellschaft m.b.H. Tuyère de texturation

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US3237270A (en) * 1963-12-11 1966-03-01 Du Pont Stuffer box crimper with composite crimper discs
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DE2302363B2 (de) * 1973-01-18 1976-09-09 Akzo Gmbh, 5600 Wuppertal Stauchkraeuselvorrichtung
DE2635341A1 (de) * 1976-08-03 1978-02-09 Berliner Maschinenbau Ag Vorrichtung zum benetzen und texturieren von einem oder mehreren, aus einer mehrzahl von synthetischen filamenten gebildeten garnen
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CA1287245C (fr) * 1985-12-20 1991-08-06 Union Carbide Corporation Surfaces metalliques au carbure resistant a l'usure, gravees au laser, pour cylindres de friction servant a l'ouvraison de pieces longues, production des surfaces, et ouvraison des pieces
US4794680A (en) 1985-12-20 1989-01-03 Union Carbide Corporation Novel wear-resistant laser-engraved ceramic or metallic carbide surfaces for friction rolls for working elongate members, method for producing same and method for working elongate members using the novel friction roll
US4726098A (en) * 1986-10-24 1988-02-23 Burlington Industries, Inc. Combination vortex action processing and melt sizing of spun yarn
US4736500A (en) * 1987-07-09 1988-04-12 Milliken Research Corporation System to draw and texturize partially oriented yarn
DE3829150A1 (de) * 1988-08-27 1990-03-01 Fritz Stahlecker Luftduese fuer pneumatisches falschdrallspinnen
JPH04343727A (ja) * 1991-05-15 1992-11-30 Aiki Seisakusho:Kk 巻縮加工機
DE59206744D1 (de) * 1992-02-07 1996-08-14 Rieter Ag Maschf Verfahren und Vorrichtung zum kontinuierlichen Kräuseln von thermoplastischen Fäden
EP0579082B1 (fr) * 1992-07-10 1998-08-26 Hoechst Aktiengesellschaft Méthode pour le traitement thermique de fils en mouvement et dispositif pour effectuer ce traitement
US5485662A (en) * 1994-04-29 1996-01-23 Hercules Incorporated Apparatus and method for crimping fiber for nonwoven applications
DE59702549D1 (de) * 1996-04-03 2000-12-07 Barmag Barmer Maschf Heizeinrichtung mit auswechselbarem Fadenführereinsatz
CN2279367Y (zh) 1997-01-20 1998-04-22 北京服装学院 叶片型长丝膨化变形器
US6351877B1 (en) * 2000-05-31 2002-03-05 Eastman Chemical Company Synthetic fiber crimper, method of crimping and crimped fiber produced therefrom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249804A2 (fr) † 1986-06-17 1987-12-23 Maschinenfabrik Rieter Ag Tuyères de traitement de fils
DE19635736A1 (de) † 1996-09-03 1998-03-05 Saxonia Umformtechnik Gmbh Diamantähnliche Beschichtung
EP1116806A2 (fr) † 2000-01-12 2001-07-18 SML Maschinengesellschaft m.b.H. Tuyère de texturation

Also Published As

Publication number Publication date
US7318263B2 (en) 2008-01-15
CN100362153C (zh) 2008-01-16
EP1404910A1 (fr) 2004-04-07
EP1404910B1 (fr) 2007-01-31
US20040237211A1 (en) 2004-12-02
ATE353109T1 (de) 2007-02-15
CN1511202A (zh) 2004-07-07
WO2003004743A1 (fr) 2003-01-16
DE50209409D1 (de) 2007-03-22

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