EP1323852A1 - Device for making a spunbond web - Google Patents

Device for making a spunbond web Download PDF

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Publication number
EP1323852A1
EP1323852A1 EP01129946A EP01129946A EP1323852A1 EP 1323852 A1 EP1323852 A1 EP 1323852A1 EP 01129946 A EP01129946 A EP 01129946A EP 01129946 A EP01129946 A EP 01129946A EP 1323852 A1 EP1323852 A1 EP 1323852A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
stretching
temperature
temperature control
nozzle assembly
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.)
Granted
Application number
EP01129946A
Other languages
German (de)
French (fr)
Other versions
EP1323852B1 (en
Inventor
Hans Georg Geus
Falk Rösner
Karsten Sievers
Hans Jürgen Hofemeister
Detlef Frey
Udo Schomer
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to SI200130865T priority Critical patent/SI1323852T1/en
Priority to DE50114266T priority patent/DE50114266D1/en
Priority to ES01129946T priority patent/ES2214983T3/en
Priority to AT01129946T priority patent/ATE406470T1/en
Priority to EP01129946A priority patent/EP1323852B1/en
Priority to DK01129946T priority patent/DK1323852T3/en
Priority to US10/294,480 priority patent/US6908292B2/en
Priority to MYPI20024335A priority patent/MY129489A/en
Priority to CA002412719A priority patent/CA2412719C/en
Priority to CNB02152453XA priority patent/CN1274896C/en
Priority to JP2002351432A priority patent/JP3645887B2/en
Priority to MXPA02012303A priority patent/MXPA02012303A/en
Priority to BRPI0205177-0B1A priority patent/BR0205177B1/en
Priority to KR10-2002-0079595A priority patent/KR100493981B1/en
Publication of EP1323852A1 publication Critical patent/EP1323852A1/en
Application granted granted Critical
Publication of EP1323852B1 publication Critical patent/EP1323852B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D04H3/033—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation immediately after yarn or filament formation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/084—Heating filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a device for production a spunbonded web made of aerodynamically stretched filaments made of thermoplastic - with a spinning head with a plurality of spinneret holes from which a curtain of thermoplastic filaments emerges and a stretching nozzle with two opposing nozzle gap-forming Verstreckdüsenaggregaten.
  • a stretching nozzle with two opposing nozzle gap-forming Verstreckdüsenaggregaten.
  • the process air in the die gap of the stretching die usually has one higher temperature than the ambient temperature, for example a temperature of 35 to 45 ° C.
  • two opposing die gap-forming stretching die units naturally does not fail to recognize the fact that these two drawing nozzle units into a single one Drawing nozzle are combined and with each other on their end faces can be connected.
  • a cooling device intended for the filaments is usually a storage tape is provided.
  • a storage tape is provided between the stretching nozzle and the laying tape.
  • the invention has a technical problem based on specifying a device of the type mentioned at the outset, with the spunbonded webs with narrow basis weight tolerances are producible.
  • the invention teaches to solve this technical problem a device of the type described above, which is characterized in that on at least one stretching nozzle assembly at least one temperature control device for Temperature control of the drawing nozzle unit connected is. - It is within the scope of the invention that on both opposite stretching die units forming the die gap in each case at least one temperature control device is arranged, preferably on the nozzle gap facing away Rear of each drawing nozzle unit.
  • a temperature control device is expedient on one Carrier element of a stretching nozzle unit attached. It is preferably a rear one Carrier element or a rear beam for the Verstreckdüsenaggregat. The back here means the nozzle gap facing away Side of the drawing nozzle unit. tempering means a device within the scope of the invention for heating or cooling a stretching nozzle assembly.
  • the The tempering device is of particular importance a heating device for heating the stretching nozzle unit.
  • the following is therefore used instead of the term Tempering device the term heating device used although the technical features explained below basically also generally for a temperature control device can apply.
  • the heating device or with the stretching nozzle units be heated if necessary.
  • Heating of the drawing nozzle units with the proviso that a temperature difference between the temperature in the Drawing die gap or the process air temperature in the drawing die gap and the ambient temperature compensated and a result of this temperature difference Deformation of the stretching nozzle unit counteracted becomes. So can the entire stretching nozzle unit the process air temperature or the temperature in the drafting die gap be heated.
  • the invention is based on the knowledge that with differences between the temperature in the drawing die gap and the ambient temperature deformation at the Drawing nozzle units occur or can occur and the stretching nozzle units then in particular in their Bulge out towards the center of the nozzle gap.
  • the invention lies continue to recognize that due to such Deformations of the stretching nozzle units or the nozzle gap side Inner surfaces of the stretching die units mentioned differences in the basis weight of a spunbonded nonwoven web occur. In the context of the invention it was therefore found that the undesirably high basis weight tolerances, those known from the prior art Devices occur as a direct result of the deformations or bending of the stretching nozzle units are.
  • a heating device for heating the stretching nozzle unit is provided.
  • the temperature in the drafting die gap or the temperature of the process air in the drafting die gap (for example 35 to 45 ° C) higher than the ambient temperature (e.g. about 20 ° C).
  • the drawing nozzle units bulge in the operation of the system with its nozzle gap side Inner walls usually towards the nozzle gap. This can be avoided by the heating according to the invention become.
  • the stretching nozzle unit is expediently heated to the temperature in the nozzle gap.
  • At least one temperature sensor is preferably used for the measurement the ambient temperature and in accordance with the measured ambient temperature, a Verstreckdüsenaggregates. As stated above, lies the ambient temperature is usually around 20 ° C. Conveniently, is a temperature sensor on the back, i.e. on the side of a stretching nozzle unit facing away from the nozzle gap, arranged. A temperature sensor can in particular on a rear carrier element or on a provided back beam of the stretching nozzle assembly his. According to one embodiment of the invention on each drawing nozzle unit, expediently on the Back of each stretching unit, at least one Temperature sensor arranged.
  • Control and / or regulating device for controlling and / or Rules for the heating of a drawing nozzle unit are available. It is within the scope of the invention that with the control and / or regulating device heating a Hiding nozzle unit according to the measured ambient temperature he follows. It remains within the scope of the Invention that a measuring device for measuring the temperature in the drawing die gap or the process air temperature is provided in the stretching die gap. Then can heating with the control and / or regulating device a stretching nozzle unit also in accordance with this measured temperature.
  • a device for determining the weight per unit area provided spunbonded web provided and takes place Heating depending on the basis weight determined. It is within the scope of the invention that with the control and / or regulating device in accordance with the determined Grammage the heating of the stretching nozzle units he follows.
  • the cooling device can, for example consist of a cooling chamber that one in has a horizontal direction rectangular chamber cross section.
  • the chamber cross section expediently takes Direction of the filaments.
  • the stretching nozzle a fleece laying device downstream.
  • This Fleece laying device can be in the form of a jet pump vertical direction venturi-like feed and a Diffuser outlet to be formed. Expediently points the fleece laying device in the horizontal direction rectangular flow cross-section.
  • In the area of moving in the fleece laying device or the jet pump at least one outdoor suction opening is provided.
  • a continuously moving conveyor belt provided, under a suction fan in the area of the fleece laying device is arranged. It is within the scope of the invention that the amount of air created by the jet pump Fleece laying device is sucked in using the Suction blower is controllable or adjustable.
  • the stretching nozzle according to the invention is designed as a gap nozzle.
  • the drawing nozzle expediently has one in the horizontal direction rectangular nozzle cross-section.
  • the nozzle gap thickness of the nozzle cross section is preferably adjustable. It is within the scope of the invention that on Leaving the stretching nozzle at least a recess a stretching nozzle wall is provided.
  • the stretching nozzle or a stretching nozzle unit is expediently as box-like component with nozzle wall made of sheet metal. In other words, according to this embodiment Stretching nozzle assembly on the gap nozzle side on a sheet metal wall.
  • the invention is based on the finding that with the inventive design of the device or with the possibility according to the invention of heating the stretching nozzle units the basis weight tolerances of the finished Spunbonded web can be kept very low. While with the devices known from the prior art undesirable basis weight tolerances in the The order of magnitude of ⁇ 20% can be achieved with the The device according to the invention has significantly lower basis weight differences or basis weight tolerances achieved become. For example, basis weight tolerances in the order of magnitude of ⁇ 6% and less.
  • a device for producing a Spunbonded nonwoven web 1 made of aerodynamically stretched filaments shown from thermoplastic has a spinning head 2 with a plurality of spinneret bores on. A curtain 3 emerges from the spinning head 2 made of thermoplastic filaments.
  • a thread formation space 4 To the spinning head 2 connects a thread formation space 4.
  • the drawing nozzle 5 is one Fleece laying device 7 connected in the form of a Jet pump with venturi-like in the vertical direction Feeder 8 and diffuser outlet 9 is formed.
  • the fleece laying device 7 or the jet pump has at least one Open air intake opening 10 in the area of the feeder 8.
  • the spunbonded nonwoven web 1 is placed on a lay-down belt 11 that is moved continuously. Under this sieve belt 11 is in the area of the fleece laying device 7 Suction fan 12 arranged.
  • the stretching nozzle 5 is designed as a gap nozzle.
  • Fig. 1 it can be seen that the inner walls 13 of the two drawing nozzle units 6 at least via one Most of the vertical length of the stretching nozzle 5 are arranged convergent to each other.
  • the two Drawing nozzle units 6 are on their end faces expediently together in a manner not shown connected.
  • a heating device 14 according to the invention arranged, preferably on the nozzle gap facing away Back of each drawing nozzle assembly 6 (see 1 and 2). Is preferred and in the embodiment each heating device 14 on a support beam 15 a stretching nozzle assembly 6 attached.
  • a beam 15 extends perpendicular to the embodiment Direction of the filaments.
  • a heater 14 can for example as a panel radiator or as a heating register be trained.
  • Is in operation of the device usually a temperature difference between the Temperature in the nozzle gap 16 or the process air temperature in the nozzle gap 16 and the ambient temperature.
  • the temperature in the nozzle gap 16 is, for example, 35 to 45 ° C, while the ambient temperature for example 20 ° C is. If this temperature difference is maintained remains, deformations occur on the drawing nozzle units 6, in particular the nozzle gap side Inner walls 13 of the stretching nozzle units 6 deformed, and especially bulged inwards towards the nozzle gap 16.
  • the Invention is based on the knowledge that due to these deformations undesirably high basis weight tolerances in the spunbonded web produced 1 result. According to the invention is therefore with the help of Heaters 14 heated so that temperature differences within the drawing nozzle units 6 be balanced as much as possible and the undesirable deformations thus be avoided.
  • a heater 14 can be seen, the the back of a support beam 15 of a stretching nozzle unit 6 is attached.
  • Preferably and in the embodiment is an insulation over the heater 14 17 provided.
  • temperature sensors are shown in FIG. 2 18 to measure the ambient temperature detect. Expediently takes place in accordance with the measured Ambient temperature the heating of the drawing nozzle units 6th

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

A spunbond web producing-apparatus has a spinning head to produce a curtain of thermoplastic synthetic resin filaments, a stretching nozzle between a pair of nozzle-forming units to stretch the filaments, a foraminous belt to collect the filaments in the form of spunbond web, and temperature control device(s) to control the temperature of the unit(s) and reduce basis weight tolerances of the web.

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung einer Spinnvliesbahn aus aerodynamisch verstreckten Filamenten aus thermoplastischem Kunststoff, - mit einem Spinnkopf mit einer Mehrzahl von Spinndüsenbohrungen, aus dem ein Vorhang aus thermoplastischen Filamenten austritt und einer Verstreckdüse mit zwei gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten. - In der Verstreckdüse bzw. in dem Düsenspalt der Verstreckdüse findet eine Verstreckung der Filamente statt, und zwar mit Hilfe von die Verstreckdüse durchströmender Prozessluft. Die Prozessluft in dem Düsenspalt der Verstreckdüse hat in der Regel eine höhere Temperatur als die Umgebungstemperatur, beispielsweise eine Temperatur von 35 bis 45 °C. Die Bezeichnung "zwei gegenüberliegende düsenspaltbildende Verstreckdüsenaggregate" verkennt natürlich nicht die Tatsache, dass diese beiden Verstreckdüsenaggregate zu einer einzigen Verstreckdüse kombiniert sind und an ihren Stirnseiten miteinander verbunden sein können. - Zwischen Spinnkopf und Verstreckdüse ist zweckmäßigerweise eine Kühleinrichtung für die Filamente vorgesehen. Zur Aufnahme des Vlieses ist in der Regel ein Ablegeband vorgesehen. Zwischen Verstreckdüse und Ablegeband ist vorzugsweise eine spezielle Vlieslegeeinrichtung angeordnet.The invention relates to a device for production a spunbonded web made of aerodynamically stretched filaments made of thermoplastic - with a spinning head with a plurality of spinneret holes from which a curtain of thermoplastic filaments emerges and a stretching nozzle with two opposing nozzle gap-forming Verstreckdüsenaggregaten. - In the drawing nozzle or in the die gap of the stretching die there is stretching of the filaments, with the help of Process air flowing through the stretching nozzle. The process air in the die gap of the stretching die usually has one higher temperature than the ambient temperature, for example a temperature of 35 to 45 ° C. The label "two opposing die gap-forming stretching die units" naturally does not fail to recognize the fact that these two drawing nozzle units into a single one Drawing nozzle are combined and with each other on their end faces can be connected. - Between spinning head and The stretching nozzle is expediently a cooling device intended for the filaments. To accommodate the fleece is usually a storage tape is provided. Between the stretching nozzle and the laying tape is preferably a special fleece laying device arranged.

Die aus der Praxis bekannten Vorrichtungen der eingangs beschriebenen Art haben sich grundsätzlich bewährt. Bei den mit diesen bekannten Vorrichtungen hergestellten Spinnvliesbahnen weist jedoch das Flächengewicht Unterschiede bzw. Toleranzen in der Größenordnung von ± 20% auf. Es versteht sich, dass diese breite Flächengewichtsverteilung unerwünscht ist.The devices known from practice of the beginning described type have generally proven themselves. Both spunbonded webs produced with these known devices however, the basis weight shows differences or tolerances in the order of magnitude of ± 20%. It it goes without saying that this broad basis weight distribution is undesirable.

Dementsprechend liegt der Erfindung das technische Problem zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, mit der Spinnvliesbahnen mit engen Flächengewichtstoleranzen herstellbar sind.Accordingly, the invention has a technical problem based on specifying a device of the type mentioned at the outset, with the spunbonded webs with narrow basis weight tolerances are producible.

Zur Lösung dieses technischen Problems lehrt die Erfindung eine Vorrichtung der eingangs beschriebenen Art, welche dadurch gekennzeichnet ist, dass an zumindest einem Verstreckdüsenaggregat zumindest eine Temperiereinrichtung zur Temperierung des Verstreckdüsenaggregates angeschlossen ist. - Es liegt im Rahmen der Erfindung, dass an beiden gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten jeweils zumindest eine Temperiereinrichtung angeordnet ist, und zwar vorzugsweise an der düsenspaltabgewandten Rückseite jedes Verstreckdüsenaggregates. Zweckmäßigerweise ist eine Temperiereinrichtung an einem Trägerelement eines Verstreckdüsenaggregates befestigt. Dabei handelt es sich bevorzugt um ein rückseitiges Trägerelement bzw. einen rückseitigen Trägerbalken für das Verstreckdüsenaggregat. Rückseite meint hier die düsenspaltabgewandte Seite des Verstreckdüsenaggregates. Temperiereinrichtung meint im Rahmen der Erfindung eine Einrichtung zur Aufheizung oder zur Abkühlung eines Verstreckdüsenaggregates.The invention teaches to solve this technical problem a device of the type described above, which is characterized in that on at least one stretching nozzle assembly at least one temperature control device for Temperature control of the drawing nozzle unit connected is. - It is within the scope of the invention that on both opposite stretching die units forming the die gap in each case at least one temperature control device is arranged, preferably on the nozzle gap facing away Rear of each drawing nozzle unit. A temperature control device is expedient on one Carrier element of a stretching nozzle unit attached. It is preferably a rear one Carrier element or a rear beam for the Verstreckdüsenaggregat. The back here means the nozzle gap facing away Side of the drawing nozzle unit. tempering means a device within the scope of the invention for heating or cooling a stretching nozzle assembly.

Nach sehr bevorzugter Ausführungsform der Erfindung, der besondere Bedeutung zukommt, ist die Temperiereinrichtung eine Heizeinrichtung zur Aufheizung des Verstreckdüsenaggregates. Nachfolgend wird deshalb anstelle des Begriffes Temperiereinrichtung der Begriff Heizeinrichtung verwendet, obwohl die nachfolgend erläuterten technischen Merkmale grundsätzlich auch ganz allgemein für eine Temperiereinrichtung gelten können. Mit der Heizeinrichtung bzw. mit den Heizeinrichtungen können die Verstreckdüsenaggregate bei Bedarf aufgeheizt werden. Erfindungsgemäß erfolgt die Aufheizung der Verstreckdüsenaggregate mit der Maßgabe, dass eine Temperaturdifferenz zwischen der Temperatur im Verstreckdüsenspalt bzw. der Prozesslufttemperatur im Verstreckdüsenspalt und der Umgebungstemperatur kompensiert wird und einer aus dieser Temperaturdifferenz resultierenden Verformung des Verstreckdüsenaggregates entgegengewirkt wird. So kann das gesamte Verstreckdüsenaggregat auf Prozesslufttemperatur bzw. auf die Temperatur im Verstreckdüsenspalt aufgeheizt werden.According to a very preferred embodiment of the invention, the The tempering device is of particular importance a heating device for heating the stretching nozzle unit. The following is therefore used instead of the term Tempering device the term heating device used although the technical features explained below basically also generally for a temperature control device can apply. With the heating device or with the stretching nozzle units be heated if necessary. According to the invention Heating of the drawing nozzle units with the proviso that a temperature difference between the temperature in the Drawing die gap or the process air temperature in the drawing die gap and the ambient temperature compensated and a result of this temperature difference Deformation of the stretching nozzle unit counteracted becomes. So can the entire stretching nozzle unit the process air temperature or the temperature in the drafting die gap be heated.

Der Erfindung liegt insoweit die Erkenntnis zugrunde, dass bei Differenzen zwischen der Temperatur im Verstreckdüsenspalt und der Umgebungstemperatur Verformungen an den Verstreckdüsenaggregaten auftreten bzw. auftreten können und die Verstreckdüsenaggregate dann insbesondere in ihrer Mitte zum Düsenspalt hin ausbeulen. Der Erfindung liegt weiterhin die Erkenntnis zugrunde, dass aufgrund solcher Verformungen der Verstreckdüsenaggregate bzw. der düsenspaltseitigen Innenflächen der Verstreckdüsenaggregate die genannten Differenzen im Flächengewicht einer Spinnvliesbahn auftreten. Im Rahmen der Erfindung wurde also gefunden, dass die unerwünscht hohen Flächengewichtstoleranzen, die bei den aus dem Stand der Technik bekannten Vorrichtungen auftreten, eine unmittelbare Folge der Verformungen bzw. Verbiegungen der Verstreckdüsenaggregate sind. Es liegt deshalb im Rahmen der Erfindung, dass vorzugsweise an jedem Verstreckdüsenaggregat zumindest jeweils eine Heizeinrichtung zur Aufheizung des Verstreckdüsenaggregates vorgesehen ist. Durch diese Aufheizung können die Temperaturdifferenzen innerhalb der Verstreckdüsenaggregate kompensiert werden und somit die Verformungen vermieden oder zumindest ausreichend reduziert werden. Normalerweise ist die Temperatur im Verstreckdüsenspalt bzw. die Temperatur der Prozessluft im Verstreckdüsenspalt (beispielsweise 35 bis 45 °C) höher als die Umgebungstemperatur (beispielsweise ca. 20 °C). Dann beulen die Verstreckdüsenaggregate im Betrieb der Anlage mit ihren düsenspaltseitigen Innenwänden in der Regel zum Düsenspalt hin aus. Durch die erfindungsgemäße Aufheizung kann das vermieden werden. Zweckmäßigerweise wird das Verstreckdüsenaggregat auf die Temperatur im Düsenspalt aufgeheizt.The invention is based on the knowledge that with differences between the temperature in the drawing die gap and the ambient temperature deformation at the Drawing nozzle units occur or can occur and the stretching nozzle units then in particular in their Bulge out towards the center of the nozzle gap. The invention lies continue to recognize that due to such Deformations of the stretching nozzle units or the nozzle gap side Inner surfaces of the stretching die units mentioned differences in the basis weight of a spunbonded nonwoven web occur. In the context of the invention it was therefore found that the undesirably high basis weight tolerances, those known from the prior art Devices occur as a direct result of the deformations or bending of the stretching nozzle units are. It is therefore within the scope of the invention that preferably at least on each stretching nozzle assembly a heating device for heating the stretching nozzle unit is provided. Through this heating up the temperature differences within the drawing nozzle units be compensated for and thus the deformations avoided or at least reduced sufficiently. Usually is the temperature in the drafting die gap or the temperature of the process air in the drafting die gap (for example 35 to 45 ° C) higher than the ambient temperature (e.g. about 20 ° C). Then the drawing nozzle units bulge in the operation of the system with its nozzle gap side Inner walls usually towards the nozzle gap. This can be avoided by the heating according to the invention become. The stretching nozzle unit is expediently heated to the temperature in the nozzle gap.

Vorzugsweise ist zumindest ein Temperaturfühler zur Messung der Umgebungstemperatur vorgesehen und nach Maßgabe der gemessenen Umgebungstemperatur erfolgt die Aufheizung eines Verstreckdüsenaggregates. Wie oben bereits dargelegt, liegt die Umgebungstemperatur in der Regel bei etwa 20 °C. Zweckmäßigerweise ist ein Temperaturfühler an der Rückseite, d.h. an der düsenspaltabgewandten Seite eines Verstreckdüsenaggregates, angeordnet. Ein Temperaturfühler kann insbesondere an einem rückseitigen Trägerelement bzw. an einem rückseitigen Trägerbalken des Verstreckdüsenaggregates vorgesehen sein. Nach einer Ausführungsform der Erfindung ist an jedem Verstreckdüsenaggregat, zweckmäßigerweise an der Rückseite jedes Verstreckdüsenaggregates, zumindest ein Temperaturfühler angeordnet.At least one temperature sensor is preferably used for the measurement the ambient temperature and in accordance with the measured ambient temperature, a Verstreckdüsenaggregates. As stated above, lies the ambient temperature is usually around 20 ° C. Conveniently, is a temperature sensor on the back, i.e. on the side of a stretching nozzle unit facing away from the nozzle gap, arranged. A temperature sensor can in particular on a rear carrier element or on a provided back beam of the stretching nozzle assembly his. According to one embodiment of the invention on each drawing nozzle unit, expediently on the Back of each stretching unit, at least one Temperature sensor arranged.

Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, ist eine Steuer- und/oder Regeleinrichtung zum Steuern und/oder Regeln der Aufheizung eines Verstreckdüsenaggregates vorhanden. Es liegt dabei im Rahmen der Erfindung, dass mit der Steuer- und/oder Regeleinrichtung die Aufheizung eines Versteckdüsenaggregates nach Maßgabe der gemessenen Umgebungstemperatur erfolgt. Es liegt weiterhin im Rahmen der Erfindung, dass eine Messeinrichtung zur Messung der Temperatur im Verstreckdüsenspalt bzw. der Prozesslufttemperatur im Verstreckdüsenspalt vorgesehen ist. Dann kann mit der Steuer- und/oder Regeleinrichtung die Aufheizung eines Verstreckdüsenaggregates auch nach Maßgabe dieser gemessenen Temperatur vorgenommen werden.According to a very preferred embodiment of the Invention is of particular importance is one Control and / or regulating device for controlling and / or Rules for the heating of a drawing nozzle unit are available. It is within the scope of the invention that with the control and / or regulating device heating a Hiding nozzle unit according to the measured ambient temperature he follows. It remains within the scope of the Invention that a measuring device for measuring the temperature in the drawing die gap or the process air temperature is provided in the stretching die gap. Then can heating with the control and / or regulating device a stretching nozzle unit also in accordance with this measured temperature.

Nach einer bevorzugten Ausführungsform der Erfindung ist eine Einrichtung zur Ermittlung des Flächengewichtes einer hergestellten Spinnvliesbahn vorgesehen und erfolgt die Aufheizung in Abhängigkeit von diesem ermittelten Flächengewicht. Es liegt dabei im Rahmen der Erfindung, dass mit der Steuer- und/oder Regeleinrichtung nach Maßgabe des ermittelten Flächengewichtes die Aufheizung der Verstreckdüsenaggregate erfolgt.According to a preferred embodiment of the invention a device for determining the weight per unit area provided spunbonded web provided and takes place Heating depending on the basis weight determined. It is within the scope of the invention that with the control and / or regulating device in accordance with the determined Grammage the heating of the stretching nozzle units he follows.

Zweckmäßigerweise ist bei der erfindungsgemäßen Vorrichtung zwischen dem Spinnkopf und der Verstreckdüse zumindest eine Kühlvorrichtung angeordnet. Die Kühlvorrichtung kann beispielsweise aus einer Kühlkammer bestehen, die einen in horizontaler Richtung rechteckigen Kammerquerschnitt aufweist. Der Kammerquerschnitt nimmt zweckmäßigerweise in Laufrichtung der Filamente ab. - Vorzugsweise ist der Verstreckdüse eine Vlieslegeeinrichtung nachgeschaltet. Diese Vlieslegeeinrichtung kann in Form einer Strahlpumpe mit in vertikaler Richtung venturiartigem Einzug sowie einem Diffusoraustritt ausgebildet sein. Zweckmäßigerweise weist die Vlieslegeeinrichtung in horizontaler Richtung einen rechteckigen Strömungsquerschnitt auf. Im Bereich des Einzuges der Vlieslegeeinrichtung bzw. der Strahlpumpe ist zumindest eine Freiluft-Einsaugöffnung vorgesehen. Unterhalb der Vlieslegeeinrichtung ist zweckmäßigerweise ein kontinuierlich bewegtes Ablegesiebband vorgesehen, unter dem im Bereich der Vlieslegeeinrichtung ein Sauggebläse angeordnet ist. Dabei liegt es im Rahmen der Erfindung, dass die Luftmenge, die durch die als Strahlpumpe arbeitende Vlieslegeeinrichtung angesaugt wird, mit Hilfe des Sauggebläses steuerbar oder regelbar ist.It is expedient in the device according to the invention at least one between the spinning head and the drawing nozzle Cooling device arranged. The cooling device can, for example consist of a cooling chamber that one in has a horizontal direction rectangular chamber cross section. The chamber cross section expediently takes Direction of the filaments. - Preferably the stretching nozzle a fleece laying device downstream. This Fleece laying device can be in the form of a jet pump vertical direction venturi-like feed and a Diffuser outlet to be formed. Expediently points the fleece laying device in the horizontal direction rectangular flow cross-section. In the area of moving in the fleece laying device or the jet pump at least one outdoor suction opening is provided. Below the fleece laying device is expediently a continuously moving conveyor belt provided, under a suction fan in the area of the fleece laying device is arranged. It is within the scope of the invention that the amount of air created by the jet pump Fleece laying device is sucked in using the Suction blower is controllable or adjustable.

Die erfindungsgemäße Verstreckdüse ist als Spaltdüse ausgebildet. Die Verstreckdüse weist zweckmäßigerweise einen in horizontaler Richtung rechteckigen Düsenquerschnitt auf. Vorzugsweise ist die Düsenspaltdicke des Düsenquerschnittes einstellbar. Es liegt im Rahmen der Erfindung, dass am Austritt der Verstreckdüse ein Rücksprung an zumindest einer Verstreckdüsenwand vorgesehen ist. Die Verstreckdüse bzw. ein Verstreckdüsenaggregat ist zweckmäßigerweise als kastenartiges Bauteil mit Düsenwand aus Blech ausgebildet. Mit anderen Worten weist nach dieser Ausführungsform ein Verstreckdüsenaggregat spaltdüsenseitig eine Blechwand auf. The stretching nozzle according to the invention is designed as a gap nozzle. The drawing nozzle expediently has one in the horizontal direction rectangular nozzle cross-section. The nozzle gap thickness of the nozzle cross section is preferably adjustable. It is within the scope of the invention that on Leaving the stretching nozzle at least a recess a stretching nozzle wall is provided. The stretching nozzle or a stretching nozzle unit is expediently as box-like component with nozzle wall made of sheet metal. In other words, according to this embodiment Stretching nozzle assembly on the gap nozzle side on a sheet metal wall.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit der erfindungsgemäßen Ausgestaltung der Vorrichtung bzw. mit der erfindungsgemäßen Möglichkeit der Aufheizung der Verstreckdüsenaggregate die Flächengewichtstoleranzen der fertigen Spinnvliesbahn sehr gering gehalten werden können. Während mit den aus dem Stand der Technik bekannten Vorrichtungen unerwünschte Flächengewichtstoleranzen in der Größenordnung von ± 20% erreicht werden, können mit der erfindungsgemäßen Vorrichtung wesentlich geringere Flächengewichtsdifferenzen bzw. Flächengewichtstoleranzen erzielt werden. So werden beispielsweise Flächengewichtstoleranzen in der Größenordnung von ± 6% und kleiner erreicht.The invention is based on the finding that with the inventive design of the device or with the possibility according to the invention of heating the stretching nozzle units the basis weight tolerances of the finished Spunbonded web can be kept very low. While with the devices known from the prior art undesirable basis weight tolerances in the The order of magnitude of ± 20% can be achieved with the The device according to the invention has significantly lower basis weight differences or basis weight tolerances achieved become. For example, basis weight tolerances in the order of magnitude of ± 6% and less.

Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
das Schema einer erfindungsgemäßen Vorrichtung für die Herstellung eines Spinnvliesbahn, und
Fig. 2
eine perspektivische Ansicht des Gegenstandes nach Fig. 1 aus Richtung des Pfeiles A.
The invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. In a schematic representation:
Fig. 1
the scheme of a device according to the invention for the production of a spunbonded nonwoven web, and
Fig. 2
a perspective view of the object of FIG. 1 from the direction of arrow A.

In den Figuren ist eine Vorrichtung zur Herstellung einer Spinnvliesbahn 1 aus aerodynamisch verstreckten Filamenten aus thermoplastischem Kunststoff dargestellt. Die Vorrichtung weist einen Spinnkopf 2 mit einer Mehrzahl von Spinndüsenbohrungen auf. Aus dem Spinnkopf 2 tritt ein Vorhang 3 aus thermoplastischen Filamenten aus. An den Spinnkopf 2 schließt ein Fadenbildungsraum 4 an. Weiter unten in Fig. 1 ist die Verstreckdüse 5 erkennbar, die aus zwei gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten 6 besteht. Der Verstreckdüse 5 ist eine Vlieslegeeinrichtung 7 nachgeschaltet, die in Form einer Strahlpumpe mit in vertikaler Richtung venturiartigem Einzug 8 und Diffusoraustritt 9 ausgebildet ist. Die Vlieslegeeinrichtung 7 bzw. die Strahlpumpe weist zumindest eine Freiluft-Einsaugöffnung 10 im Bereich des Einzuges 8 auf. Die Spinnvliesbahn 1 wird auf einem Ablegesiebband 11 abgelegt, das kontinuierlich bewegt wird. Unter diesem Ablegesiebband 11 ist im Bereich der Vlieslegeeinrichtung 7 ein Sauggebläse 12 angeordnet.In the figures is a device for producing a Spunbonded nonwoven web 1 made of aerodynamically stretched filaments shown from thermoplastic. The device has a spinning head 2 with a plurality of spinneret bores on. A curtain 3 emerges from the spinning head 2 made of thermoplastic filaments. To the spinning head 2 connects a thread formation space 4. Below in Fig. 1 the stretching nozzle 5 can be seen, which consists of two opposite stretching die units forming the die gap 6 exists. The drawing nozzle 5 is one Fleece laying device 7 connected in the form of a Jet pump with venturi-like in the vertical direction Feeder 8 and diffuser outlet 9 is formed. The fleece laying device 7 or the jet pump has at least one Open air intake opening 10 in the area of the feeder 8. The spunbonded nonwoven web 1 is placed on a lay-down belt 11 that is moved continuously. Under this sieve belt 11 is in the area of the fleece laying device 7 Suction fan 12 arranged.

Die Verstreckdüse 5 ist als Spaltdüse ausgeführt. In Fig. 1 ist erkennbar, dass die düsenspaltseitigen Innenwände 13 der beiden Verstreckdüsenaggregate 6 zumindest über einen Großteil der vertikalen Länge der Verstreckdüse 5 konvergent zueinander angeordnet sind. Die beiden Verstreckdüsenaggregate 6 sind an ihren Stirnseiten zweckmäßigerweise in nicht dargestellter Weise miteinander verbunden. Im Ausführungsbeispiel ist an jedem der beiden gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregate 6 eine erfindungsgemäße Heizeinrichtung 14 angeordnet, und zwar vorzugsweise an der düsenspaltabgewandten Rückseite jedes Verstreckdüsenaggregates 6 (s. Fig. 1 und 2). Vorzugsweise und im Ausführungsbeispiel ist dabei jede Heizeinrichtung 14 an einem Trägerbalken 15 eines Verstreckdüsenaggregates 6 befestigt. Ein Trägerbalken 15 verläuft im Ausführungsbeispiel senkrecht zur Laufrichtung der Filamente. Eine Heizeinrichtung 14 kann beispielsweise als Plattenheizkörper oder als Heizregister ausgebildet sein. - Im Betrieb der Vorrichtung liegt normalerweise eine Temperaturdifferenz zwischen der Temperatur im Düsenspalt 16 bzw. der Prozesslufttemperatur im Düsenspalt 16 und der Umgebungstemperatur vor. Die Temperatur im Düsenspalt 16 beträgt beispielsweise 35 bis 45 °C, während die Umgebungstemperatur beispielsweise 20 °C beträgt. Wenn diese Temperaturdifferenz aufrechterhalten bleibt, treten Verformungen an den Verstreckdüsenaggregaten 6 auf, und zwar werden insbesondere die düsenspaltseitigen Innenwände 13 der Verstreckdüsenaggregate 6 verformt, und vor allem nach innen zum Düsenspalt 16 hin ausgebeult. Der Erfindung liegt die Erkenntnis zugrunde, dass aufgrund dieser Verformungen unerwünscht hohe Flächengewichtstoleranzen in der hergestellten Spinnvliesbahn 1 resultieren. Erfindungsgemäß wird deshalb mit Hilfe der Heizeinrichtungen 14 so aufgeheizt, dass Temperaturdifferenzen innerhalb der Verstreckdüsenaggregate 6 möglichst ausgeglichen werden und die unerwünschten Verformungen somit vermieden werden.The stretching nozzle 5 is designed as a gap nozzle. In Fig. 1 it can be seen that the inner walls 13 of the two drawing nozzle units 6 at least via one Most of the vertical length of the stretching nozzle 5 are arranged convergent to each other. The two Drawing nozzle units 6 are on their end faces expediently together in a manner not shown connected. In the exemplary embodiment is on each of the two opposite stretching die units forming the die gap 6 a heating device 14 according to the invention arranged, preferably on the nozzle gap facing away Back of each drawing nozzle assembly 6 (see 1 and 2). Is preferred and in the embodiment each heating device 14 on a support beam 15 a stretching nozzle assembly 6 attached. A beam 15 extends perpendicular to the embodiment Direction of the filaments. A heater 14 can for example as a panel radiator or as a heating register be trained. - Is in operation of the device usually a temperature difference between the Temperature in the nozzle gap 16 or the process air temperature in the nozzle gap 16 and the ambient temperature. The The temperature in the nozzle gap 16 is, for example, 35 to 45 ° C, while the ambient temperature for example 20 ° C is. If this temperature difference is maintained remains, deformations occur on the drawing nozzle units 6, in particular the nozzle gap side Inner walls 13 of the stretching nozzle units 6 deformed, and especially bulged inwards towards the nozzle gap 16. The Invention is based on the knowledge that due to these deformations undesirably high basis weight tolerances in the spunbonded web produced 1 result. According to the invention is therefore with the help of Heaters 14 heated so that temperature differences within the drawing nozzle units 6 be balanced as much as possible and the undesirable deformations thus be avoided.

In der Fig. 2 ist eine Heizeinrichtung 14 erkennbar, die an der Rückseite eines Trägerbalkens 15 eines Verstreckdüsenaggregates 6 befestigt ist. Vorzugsweise und im Ausführungsbeispiel ist über der Heizeinrichtung 14 eine Isolierung 17 vorgesehen. In der Fig. 2 sind im Übrigen Temperaturfühler 18 zur Messung der Umgebungstemperatur zu erkennen. Zweckmäßigerweise erfolgt nach Maßgabe der gemessenen Umgebungstemperatur die Aufheizung der Verstreckdüsenaggregate 6.In Fig. 2, a heater 14 can be seen, the the back of a support beam 15 of a stretching nozzle unit 6 is attached. Preferably and in the embodiment is an insulation over the heater 14 17 provided. In addition, temperature sensors are shown in FIG. 2 18 to measure the ambient temperature detect. Expediently takes place in accordance with the measured Ambient temperature the heating of the drawing nozzle units 6th

Claims (10)

Vorrichtung zur Herstellung einer Spinnvliesbahn (1) aus aerodynamisch verstreckten Filamenten aus thermoplastischem Kunststoff, - mit
einem Spinnkopf (2) mit einer Mehrzahl von Spinndüsenbohrungen, aus dem ein Vorhang (3) aus thermoplastischen Filamenten austritt,
einer Verstreckdüse (5) mit zwei gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten (6), dadurch gekennzeichnet, dass an zumindest einem Verstreckdüsenaggregat (6) zumindest eine Temperiereinrichtung zur Temperierung des Verstreckdüsenaggregates (6) angeschlossen ist.Device for producing a spunbonded nonwoven web (1) from aerodynamically stretched filaments made of thermoplastic, - with
a spinning head (2) with a plurality of spinneret bores, from which a curtain (3) made of thermoplastic filaments emerges,
a stretching nozzle (5) with two opposing nozzle gap-forming stretching nozzle assemblies (6), characterized in that at least one temperature control device for temperature control of the stretching nozzle assembly (6) is connected to at least one stretching nozzle assembly (6). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass an beiden gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten (6) jeweils zumindest eine Temperiereinrichtung angeordnet ist, und zwar vorzugsweise an der düsenspaltabgewandten Rückseite jedes Verstreckdüsenaggregates (6).Apparatus according to claim 1, characterized in that at least one temperature control device is arranged on each of the two opposing stretching die assemblies (6), preferably on the rear side of each stretching unit (6) facing away from the die gap. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass eine Temperiereinrichtung an einem Trägerelement eines Verstreckdüsenaggregates (6) befestigt ist. Device according to one of claims 1 or 2, characterized in that a temperature control device is attached to a carrier element of a drawing nozzle assembly (6). Vorrichtung nach einem der Ansprüche 1 bis 3, wobei die zumindest eine Temperiereinrichtung eine Heizeinrichtung (14) zur Aufheizung des Verstreckdüsenaggregates (6) ist. Device according to one of claims 1 to 3, wherein the at least one temperature control device is a heating device (14) for heating the stretching nozzle assembly (6). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zumindest ein Temperaturfühler (18) zur Messung der Umgebungstemperatur vorgesehen ist und wobei nach Maßgabe der gemessenen Umgebungstemperatur die Temperierung des Verstreckdüsenaggregates (6) erfolgt.Device according to one of claims 1 to 4, characterized in that at least one temperature sensor (18) is provided for measuring the ambient temperature and the temperature of the drawing nozzle assembly (6) is carried out in accordance with the measured ambient temperature. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine Steuer- und/oder Regeleinrichtung zum Steuern und/oder Regeln der Temperierung eines Verstreckdüsenaggregates (6) vorgesehen ist.Device according to one of claims 1 to 5, characterized in that a control and / or regulating device for controlling and / or regulating the temperature control of a drawing nozzle assembly (6) is provided. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass eine Einrichtung zur Ermittlung des Flächengewichtes der hergestellten Spinnvliesbahn (1) vorgesehen ist und wobei die Temperierung in Abhängigkeit von dem ermittelten Flächengewicht der Spinnvliesbahn (1) erfolgt.Device according to one of claims 1 to 6, characterized in that a device is provided for determining the weight per unit area of the spunbonded web (1) produced, and the temperature is controlled as a function of the determined weight per unit area of the spunbonded web (1). Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zwischen Spinnkopf (2) und Verstreckdüse (5) zumindest eine Kühlvorrichtung angeordnet ist.Device according to one of claims 1 to 7, characterized in that at least one cooling device is arranged between the spinning head (2) and the drawing nozzle (5). Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Verstreckdüse (5) eine Vlieslegeeinrichtung (7) nachgeschaltet ist.Device according to one of claims 1 to 8, characterized in that the stretching nozzle (5) is followed by a fleece laying device (7). Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass ein Ablegesiebband (11) für die Spinnvliesbahn (1) vorgesehen ist.Device according to one of claims 1 to 9, characterized in that a deposit screen belt (11) is provided for the spunbonded nonwoven web (1).
EP01129946A 2001-12-17 2001-12-17 Device for making a spunbond web Expired - Lifetime EP1323852B1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
SI200130865T SI1323852T1 (en) 2001-12-17 2001-12-17 Device for making a spunbond web
DE50114266T DE50114266D1 (en) 2001-12-17 2001-12-17 Apparatus for producing a spunbonded nonwoven web
ES01129946T ES2214983T3 (en) 2001-12-17 2001-12-17 DEVICE FOR PRODUCING A BAND OF A SPINNING VEIL.
AT01129946T ATE406470T1 (en) 2001-12-17 2001-12-17 DEVICE FOR PRODUCING A SPUNNOVED WEB
EP01129946A EP1323852B1 (en) 2001-12-17 2001-12-17 Device for making a spunbond web
DK01129946T DK1323852T3 (en) 2001-12-17 2001-12-17 Apparatus for manufacturing a web of spunbonded fabric
US10/294,480 US6908292B2 (en) 2001-12-17 2002-11-14 Apparatus for producing a nonwoven web
MYPI20024335A MY129489A (en) 2001-12-17 2002-11-20 Apparatus for producing a nonwoven web
CA002412719A CA2412719C (en) 2001-12-17 2002-11-26 Apparatus for producing a nonwoven web
CNB02152453XA CN1274896C (en) 2001-12-17 2002-11-28 Device for mfg. width of spun-bonded nonwoven fabric material
JP2002351432A JP3645887B2 (en) 2001-12-17 2002-12-03 Equipment for producing spunbonded nonwovens
MXPA02012303A MXPA02012303A (en) 2001-12-17 2002-12-11 Device for making a spunbond web.
BRPI0205177-0B1A BR0205177B1 (en) 2001-12-17 2002-12-12 Device for producing a continuous filament fleece section
KR10-2002-0079595A KR100493981B1 (en) 2001-12-17 2002-12-13 Apparatus for producing spunbonded web from aerodynamic drafting filament of thermoplastic plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01129946A EP1323852B1 (en) 2001-12-17 2001-12-17 Device for making a spunbond web

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EP1323852A1 true EP1323852A1 (en) 2003-07-02
EP1323852B1 EP1323852B1 (en) 2008-08-27

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US (1) US6908292B2 (en)
EP (1) EP1323852B1 (en)
JP (1) JP3645887B2 (en)
KR (1) KR100493981B1 (en)
CN (1) CN1274896C (en)
AT (1) ATE406470T1 (en)
BR (1) BR0205177B1 (en)
CA (1) CA2412719C (en)
DE (1) DE50114266D1 (en)
DK (1) DK1323852T3 (en)
ES (1) ES2214983T3 (en)
MX (1) MXPA02012303A (en)
MY (1) MY129489A (en)
SI (1) SI1323852T1 (en)

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ATE406470T1 (en) 2008-09-15
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BR0205177A (en) 2004-06-29

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