EP1323852B1 - Device for making a spunbond web - Google Patents

Device for making a spunbond web Download PDF

Info

Publication number
EP1323852B1
EP1323852B1 EP01129946A EP01129946A EP1323852B1 EP 1323852 B1 EP1323852 B1 EP 1323852B1 EP 01129946 A EP01129946 A EP 01129946A EP 01129946 A EP01129946 A EP 01129946A EP 1323852 B1 EP1323852 B1 EP 1323852B1
Authority
EP
European Patent Office
Prior art keywords
drawing die
temperature
nozzle
gap
temperature equalisation
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
EP01129946A
Other languages
German (de)
French (fr)
Other versions
EP1323852A1 (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 EP01129946A priority Critical patent/EP1323852B1/en
Priority to DE50114266T priority patent/DE50114266D1/en
Priority to ES01129946T priority patent/ES2214983T3/en
Priority to DK01129946T priority patent/DK1323852T3/en
Priority to AT01129946T priority patent/ATE406470T1/en
Priority to SI200130865T priority patent/SI1323852T1/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

Links

Images

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 producing a spunbonded nonwoven web from aerodynamically stretched filaments of thermoplastic material, having a spinner head with a plurality of spinneret bores from which emerges a curtain made of thermoplastic filaments and a drawing die with two opposing die gap forming draw jet units.
  • the filaments are stretched, with the aid of process air flowing through the drawing die.
  • the process air in the nozzle gap of the drawing-out nozzle usually has a higher temperature than the ambient temperature, for example a temperature of 35 to 45 ° C.
  • two opposing die-splitting draw-jet units does not fail to recognize the fact that these two draw-jet dies are combined into a single drawing die and can be connected to one another at their end faces.
  • a cooling device for the filaments is provided.
  • a depositing belt is provided.
  • a special web laying device is arranged.
  • the technical problem underlying the invention is to specify a device of the type mentioned at the beginning, with which spunbond webs with narrow basis weight tolerances can be produced.
  • the invention teaches a device of the type described above, which is characterized in that at least one tempering device for temperature control of the Verstreckdüsenaggregates is connected to at least one Verstreckdüsenaggregat. It is within the scope of the invention that in each case at least one tempering device is arranged on both opposing nozzle-gap-forming stretching nozzle assemblies, preferably at the rear side of each stretching nozzle assembly facing away from the nozzle gap.
  • a tempering device is attached to a carrier element of a Verstreckdüsenaggregates. This is preferably a rear-side carrier element or a rear-side carrier bar for the draw-jet unit. The reverse side here means the side of the draw-jet unit facing away from the nozzle gap.
  • Tempering means in the context of the invention means for heating or cooling of a stretching nozzle.
  • the tempering is a heater for heating the Verstreckdüsenaggregates.
  • the term heating device is used instead of the term tempering device, although the technical features explained below can in principle generally also apply to a tempering device.
  • the heating of the stretching nozzle assemblies is carried out with the proviso that a temperature difference between the temperature in the stretching nozzle gap and the process air temperature in the stretching nozzle gap and the ambient temperature is compensated and a deformation of the stretching nozzle assembly resulting from this temperature difference is counteracted.
  • the entire draw-jet unit can be heated to the process air temperature or to the temperature in the drawing-die gap.
  • the invention is based on the knowledge that, given differences between the temperature in the stretching die gap and the ambient temperature, deformations can occur or occur on the stretching die assemblies, and the stretching die assemblies then bulge, in particular in their middle towards the die gap.
  • the invention is further based on the finding that due to such deformations of the draw-jet aggregates or of the nozzle-gap-side inner surfaces of the draw-jet aggregates, the differences in the basis weight of a spunbonded nonwoven web occur.
  • the undesirably high basis weight tolerances which occur in the devices known from the prior art, an immediate consequence of the deformations or bends of the stretching jet aggregates.
  • At least one heating device for heating the Verstreckdüsenaggregates is provided at each Verstreckdüsenaggregat.
  • the temperature differences can be compensated within the Verstreckdüsenaggregate and thus avoided the deformations or at least reduced sufficiently.
  • the temperature in the drawing die gap or the temperature of the process air in the drawing die gap is higher than the ambient temperature (for example about 20 ° C.).
  • the draw-jet aggregates then bulge with their nozzle-gap-side inner walls, as a rule, toward the nozzle gap. This can be avoided by the heating according to the invention.
  • the draw-jet unit is heated to the temperature in the nozzle gap.
  • At least one temperature sensor is provided for measuring the ambient temperature and, in accordance with the measured ambient temperature, the heating of a stretching nozzle assembly takes place.
  • the ambient temperature is usually about 20 ° C.
  • a temperature sensor on the back that is arranged on the side facing away from the nozzle gap of a Verstreckdüsenaggregates.
  • a temperature sensor may in particular be provided on a rear-side support element or on a rear-side support beam of the draw-jet unit.
  • at each draw-jet unit expediently at the Rear side of each Verstreckdüsenaggregates, arranged at least one temperature sensor.
  • control and / or regulating device for controlling and / or regulating the heating of a drawing jet aggregate. It is within the scope of the invention that the control and / or regulating device is used to heat up a hiding-machine aggregate in accordance with the measured ambient temperature. It is also within the scope of the invention that a measuring device is provided for measuring the temperature in the stretching nozzle gap or the process air temperature in the stretching nozzle gap. Then can be made in accordance with this measured temperature with the control and / or regulating device, the heating of a Verstreckdüsenaggregates.
  • a device for determining the weight per unit area of a spunbonded nonwoven web produced is provided and the heating takes place as a function of this determined basis weight. It is within the scope of the invention that with the control and / or regulating device in accordance with the determined basis weight, the heating of the draw-jet unit is carried out.
  • At least one cooling device is arranged between the spinning head and the drawing-out nozzle in the device according to the invention.
  • the cooling device may for example consist of a cooling chamber having a in horizontal direction has rectangular chamber cross-section.
  • the chamber cross section expediently decreases in the running direction of the filaments.
  • the Verstreckdüse is followed by a web laying device.
  • This nonwoven laying device can be designed in the form of a jet pump with a venturi-like intake in the vertical direction and a diffuser outlet. Expediently, the nonwoven laying device has a rectangular flow cross section in the horizontal direction. In the region of the collection of the fleece laying device or the jet pump, at least one outdoor suction opening is provided.
  • a continuously moving deposition screen is expediently provided, under which a suction fan is arranged in the area of the nonwoven laying device. It is within the scope of the invention that the amount of air that is sucked in by the non-woven laying device operating as a jet pump can be controlled or regulated with the aid of the suction fan.
  • the drawing die according to the invention is designed as a gap nozzle.
  • the drawing-out nozzle expediently has a nozzle cross-section that is rectangular in the horizontal direction.
  • the nozzle gap thickness of the nozzle cross-section is adjustable.
  • a return is provided at least one Verstreckdüsenwand at the outlet of the Verstreckdüse.
  • the Verstreckdüse or a Verstreckdüsenaggregat is suitably designed as a box-like component with nozzle wall made of sheet metal.
  • a drawing jet aggregate has a sheet-metal wall on the nozzle side.
  • the invention is based on the finding that the surface weight tolerances of the finished spunbonded nonwoven web can be kept very low with the inventive design of the device or with the inventive possibility of heating the draw-jet unit. While undesirable basis weight tolerances of the order of magnitude of ⁇ 20% are achieved with the devices known from the prior art, substantially lower basis weight differences or surface weight tolerances can be achieved with the device according to the invention. For example, basis weight tolerances of the order of ⁇ 6% and less are achieved.
  • an apparatus for producing a spunbonded web 1 of aerodynamically stretched filaments of thermoplastic material has a spinner head 2 with a plurality of spinneret holes. From the spinning head 2 exits a curtain 3 of thermoplastic filaments. At the spinning head 2 includes a thread forming space 4. Further down in Fig. 1 is the Verstreckdüse 5 recognizable, consisting of two consists of opposite nozzle gap forming stretching jet 6 aggregates. The Verstreckdüse 5 is followed by a fleece laying device 7, which is in the form of a jet pump with venturiartigem 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 outdoor suction opening 10 in the region of the intake 8. The spunbonded web 1 is deposited on a Ablegesiebband 11, which is moved continuously. Under this Ablegesiebband 11, a suction fan 12 is arranged in the region of the fleece laying device 7.
  • the Verstreckdüse 5 is designed as a Spaltdüse.
  • Fig. 1 It can be seen that the nozzle-gap-side inner walls 13 of the two drawing-jet aggregates 6 are arranged convergent with each other over at least a majority of the vertical length of the drawing-out die 5.
  • the two Verstreckdüsenaggregate 6 are suitably connected to each other at their ends in a manner not shown.
  • a heating device 14 according to the invention is arranged on each of the two opposing nozzle gap-forming stretching nozzle units 6, preferably on the rear side of each stretching nozzle assembly 6 facing away from the nozzle gap (see FIG. Fig. 1 and 2 ).
  • each heating device 14 is fastened to a carrier beam 15 of a stretching nozzle assembly 6.
  • a support beam 15 extends in the embodiment perpendicular to the direction of filaments.
  • a heater 14 may be formed for example as a plate heater or as a heater.
  • - In the operation of the device is usually a temperature difference between the temperature in the nozzle gap 16 and the process air temperature in the nozzle gap 16 and the ambient temperature before.
  • the temperature in the nozzle gap 16 is for example 35 to 45 ° C, while the ambient temperature is 20 ° C, for example.
  • the invention is based on the finding that, due to these deformations, undesirably high basis weight tolerances result in the spunbonded nonwoven web 1 produced. According to the invention is therefore heated by means of the heaters 14 so that temperature differences within the Verstreckdüsenaggregate 6 are balanced as possible and the undesirable deformations are thus avoided.
  • a heater 14 recognizable, which is attached to the back of a support beam 15 of a Verstreckdüsenaggregates 6.
  • an insulation 17 is provided above the heater 14.
  • temperature sensor 18 for measuring the ambient temperature can be recognized. Conveniently, the heating of the stretching jet aggregates 6 takes place in accordance with the measured ambient temperature.

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 producing a spunbonded nonwoven web from aerodynamically stretched filaments of thermoplastic material, having a spinner head with a plurality of spinneret bores from which emerges a curtain made of thermoplastic filaments and a drawing die with two opposing die gap forming draw jet units. In the drawing die or in the die gap of the drawing die, the filaments are stretched, with the aid of process air flowing through the drawing die. The process air in the nozzle gap of the drawing-out nozzle usually has a higher temperature than the ambient temperature, for example a temperature of 35 to 45 ° C. Of course, the term "two opposing die-splitting draw-jet units" does not fail to recognize the fact that these two draw-jet dies are combined into a single drawing die and can be connected to one another at their end faces. - Between the spinning head and drawing die expediently a cooling device for the filaments is provided. For receiving the nonwoven usually a depositing belt is provided. Between drawing die and depositing belt preferably a special web laying device is 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 known from practice devices of the type described above have proven themselves in principle. In the spunbonded nonwoven webs produced with these known devices, however, the basis weight differences or tolerances in the order of ± 20%. It It is understood 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 technical problem underlying the invention is to specify a device of the type mentioned at the beginning, with which spunbond webs with narrow basis weight tolerances can be produced.

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.To solve this technical problem, the invention teaches a device of the type described above, which is characterized in that at least one tempering device for temperature control of the Verstreckdüsenaggregates is connected to at least one Verstreckdüsenaggregat. It is within the scope of the invention that in each case at least one tempering device is arranged on both opposing nozzle-gap-forming stretching nozzle assemblies, preferably at the rear side of each stretching nozzle assembly facing away from the nozzle gap. Appropriately, a tempering device is attached to a carrier element of a Verstreckdüsenaggregates. This is preferably a rear-side carrier element or a rear-side carrier bar for the draw-jet unit. The reverse side here means the side of the draw-jet unit facing away from the nozzle gap. Tempering means in the context of the invention means for heating or cooling of a stretching nozzle.

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.After a very preferred embodiment of the invention, which is of particular importance, the tempering is a heater for heating the Verstreckdüsenaggregates. In the following, therefore, the term heating device is used instead of the term tempering device, although the technical features explained below can in principle generally also apply to a tempering device. With the heating device or with the heating devices, the drawing-jet aggregates can be heated if necessary. According to the invention, the heating of the stretching nozzle assemblies is carried out with the proviso that a temperature difference between the temperature in the stretching nozzle gap and the process air temperature in the stretching nozzle gap and the ambient temperature is compensated and a deformation of the stretching nozzle assembly resulting from this temperature difference is counteracted. Thus, the entire draw-jet unit can be heated to the process air temperature or to the temperature in the drawing-die gap.

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.Insofar, the invention is based on the knowledge that, given differences between the temperature in the stretching die gap and the ambient temperature, deformations can occur or occur on the stretching die assemblies, and the stretching die assemblies then bulge, in particular in their middle towards the die gap. The invention is further based on the finding that due to such deformations of the draw-jet aggregates or of the nozzle-gap-side inner surfaces of the draw-jet aggregates, the differences in the basis weight of a spunbonded nonwoven web occur. In the context of the invention it has thus been found that the undesirably high basis weight tolerances which occur in the devices known from the prior art, an immediate consequence of the deformations or bends of the stretching jet aggregates. It is therefore within the scope of the invention that preferably at least one heating device for heating the Verstreckdüsenaggregates is provided at each Verstreckdüsenaggregat. By this heating, the temperature differences can be compensated within the Verstreckdüsenaggregate and thus avoided the deformations or at least reduced sufficiently. Normally, the temperature in the drawing die gap or the temperature of the process air in the drawing die gap (for example 35 to 45 ° C.) is higher than the ambient temperature (for example about 20 ° C.). In the operation of the system, the draw-jet aggregates then bulge with their nozzle-gap-side inner walls, as a rule, toward the nozzle gap. This can be avoided by the heating according to the invention. Conveniently, the draw-jet unit is 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.Preferably, at least one temperature sensor is provided for measuring the ambient temperature and, in accordance with the measured ambient temperature, the heating of a stretching nozzle assembly takes place. As stated above, the ambient temperature is usually about 20 ° C. Conveniently, a temperature sensor on the back, that is arranged on the side facing away from the nozzle gap of a Verstreckdüsenaggregates. A temperature sensor may in particular be provided on a rear-side support element or on a rear-side support beam of the draw-jet unit. According to one embodiment of the invention, at each draw-jet unit, expediently at the Rear side of each Verstreckdüsenaggregates, arranged at least one temperature sensor.

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, which is of very particular importance in the context of the invention, there is a control and / or regulating device for controlling and / or regulating the heating of a drawing jet aggregate. It is within the scope of the invention that the control and / or regulating device is used to heat up a hiding-machine aggregate in accordance with the measured ambient temperature. It is also within the scope of the invention that a measuring device is provided for measuring the temperature in the stretching nozzle gap or the process air temperature in the stretching nozzle gap. Then can be made in accordance with this measured temperature with the control and / or regulating device, the heating of a Verstreckdüsenaggregates.

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 of a spunbonded nonwoven web produced is provided and the heating takes place as a function of this determined basis weight. It is within the scope of the invention that with the control and / or regulating device in accordance with the determined basis weight, the heating of the draw-jet unit is carried out.

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.Conveniently, at least one cooling device is arranged between the spinning head and the drawing-out nozzle in the device according to the invention. The cooling device may for example consist of a cooling chamber having a in horizontal direction has rectangular chamber cross-section. The chamber cross section expediently decreases in the running direction of the filaments. - Preferably, the Verstreckdüse is followed by a web laying device. This nonwoven laying device can be designed in the form of a jet pump with a venturi-like intake in the vertical direction and a diffuser outlet. Expediently, the nonwoven laying device has a rectangular flow cross section in the horizontal direction. In the region of the collection of the fleece laying device or the jet pump, at least one outdoor suction opening is provided. Below the nonwoven laying device, a continuously moving deposition screen is expediently provided, under which a suction fan is arranged in the area of the nonwoven laying device. It is within the scope of the invention that the amount of air that is sucked in by the non-woven laying device operating as a jet pump can be controlled or regulated with the aid of the suction fan.

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 drawing die according to the invention is designed as a gap nozzle. The drawing-out nozzle expediently has a nozzle cross-section that is rectangular in the horizontal direction. Preferably, the nozzle gap thickness of the nozzle cross-section is adjustable. It is within the scope of the invention that a return is provided at least one Verstreckdüsenwand at the outlet of the Verstreckdüse. The Verstreckdüse or a Verstreckdüsenaggregat is suitably designed as a box-like component with nozzle wall made of sheet metal. In other words, according to this embodiment, a drawing jet aggregate has a sheet-metal wall on the nozzle side.

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 the surface weight tolerances of the finished spunbonded nonwoven web can be kept very low with the inventive design of the device or with the inventive possibility of heating the draw-jet unit. While undesirable basis weight tolerances of the order of magnitude of ± 20% are achieved with the devices known from the prior art, substantially lower basis weight differences or surface weight tolerances can be achieved with the device according to the invention. For example, basis weight tolerances of the order of ± 6% and less are achieved.

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 will be explained in more detail with reference to a drawing showing 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 according to Fig. 1 from the direction of the 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, an apparatus for producing a spunbonded web 1 of aerodynamically stretched filaments of thermoplastic material is shown. The apparatus has a spinner head 2 with a plurality of spinneret holes. From the spinning head 2 exits a curtain 3 of thermoplastic filaments. At the spinning head 2 includes a thread forming space 4. Further down in Fig. 1 is the Verstreckdüse 5 recognizable, consisting of two consists of opposite nozzle gap forming stretching jet 6 aggregates. The Verstreckdüse 5 is followed by a fleece laying device 7, which is in the form of a jet pump with venturiartigem 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 outdoor suction opening 10 in the region of the intake 8. The spunbonded web 1 is deposited on a Ablegesiebband 11, which is moved continuously. Under this Ablegesiebband 11, a suction fan 12 is arranged in the region of the fleece laying device 7.

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 Verstreckdüse 5 is designed as a Spaltdüse. In Fig. 1 It can be seen that the nozzle-gap-side inner walls 13 of the two drawing-jet aggregates 6 are arranged convergent with each other over at least a majority of the vertical length of the drawing-out die 5. The two Verstreckdüsenaggregate 6 are suitably connected to each other at their ends in a manner not shown. In the exemplary embodiment, a heating device 14 according to the invention is arranged on each of the two opposing nozzle gap-forming stretching nozzle units 6, preferably on the rear side of each stretching nozzle assembly 6 facing away from the nozzle gap (see FIG. Fig. 1 and 2 ). Preferably, and in the exemplary embodiment, each heating device 14 is fastened to a carrier beam 15 of a stretching nozzle assembly 6. A support beam 15 extends in the embodiment perpendicular to the direction of filaments. A heater 14 may be formed for example as a plate heater or as a heater. - In the operation of the device is usually a temperature difference between the temperature in the nozzle gap 16 and the process air temperature in the nozzle gap 16 and the ambient temperature before. The temperature in the nozzle gap 16 is for example 35 to 45 ° C, while the ambient temperature is 20 ° C, for example. If this temperature difference is maintained, deformations occur on the draw jet units 6, specifically the nozzle gap-side inner walls 13 of the draw jet units 6 are deformed, and bulged inwards in particular towards the nozzle gap 16. The invention is based on the finding that, due to these deformations, undesirably high basis weight tolerances result in the spunbonded nonwoven web 1 produced. According to the invention is therefore heated by means of the heaters 14 so that temperature differences within the Verstreckdüsenaggregate 6 are balanced as possible and the undesirable deformations are thus 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 the Fig. 2 is a heater 14 recognizable, which is attached to the back of a support beam 15 of a Verstreckdüsenaggregates 6. Preferably, and in the embodiment, an insulation 17 is provided above the heater 14. In the Fig. 2 Incidentally, temperature sensor 18 for measuring the ambient temperature can be recognized. Conveniently, the heating of the stretching jet aggregates 6 takes place in accordance with the measured ambient temperature.

Claims (10)

  1. An apparatus for producing a length of spun felt (1) from aerodynamically drawn filaments made of thermoplastic synthetic material, - comprising
    a spinning head (2) having a multiplicity of spinneret holes from which a curtain (3) of thermoplastic filaments emerges, and
    a drawing die (5) having two opposite drawing die units (6) forming the die gap, characterised in that at least one temperature equalisation device for temperature equalisation of the drawing die unit (6) is attached to at least one drawing die unit (6).
  2. An apparatus according to claim 1, characterised in that at least one temperature equalisation device is disposed on each of the two opposite drawing die units (6) which form the die gap, preferably on the back of each drawing die unit (6) remote from the drawing die gap.
  3. An apparatus according to either one of claims 1 or 2, characterised in that a temperature equalisation device is fixed to a supporting element of a drawing die unit (6).
  4. An apparatus according to any one of claims 1 to 3, wherein the at least one temperature equalisation device is a heater (14) for heating the drawing die unit (6).
  5. An apparatus according to any one of claims 1 to 4, characterised in that at least one temperature sensor (18) is provided for measuring the ambient temperature, wherein temperature equalisation of the drawing die unit (6) is effected according to the measured ambient temperature.
  6. An apparatus according to any one of claims 1 to 5, characterised in that a controller and/or regulator is provided for controlling and/or regulating the temperature equalisation of a drawing die unit (6).
  7. An apparatus according to any one of claims 1 to 6, characterised in that a device is provided for determining the weight per unit area of the length of spun felt (1) produced, wherein temperature equalisation is effected depending on the determined weight per unit area of the length of spun felt (1).
  8. An apparatus according to any one of claims 1 to 7, characterised in that at least one cooling apparatus is disposed between the spinning head (2) and the drawing die (5).
  9. An apparatus according to any one of claims 1 to 8, characterised in that a felt deposition device (7) is disposed downstream of the drawing die (5).
  10. An apparatus according to any one of claims 1 to 9, characterised in that a travelling deposition screen (11) is provided for the length of spun felt (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
EP01129946A EP1323852B1 (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.
DK01129946T DK1323852T3 (en) 2001-12-17 2001-12-17 Apparatus for manufacturing a web of spunbonded fabric
AT01129946T ATE406470T1 (en) 2001-12-17 2001-12-17 DEVICE FOR PRODUCING A SPUNNOVED WEB
SI200130865T SI1323852T1 (en) 2001-12-17 2001-12-17 Device for making a spunbond web
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

Publications (2)

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

Family

ID=8179571

Family Applications (1)

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

Country Status (14)

Country Link
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)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010138832A1 (en) 2009-05-28 2010-12-02 Biomet Manufacturing Corp. Knee prosthesis
WO2010141577A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2010141578A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Structured fibrous web
WO2010141643A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2012125538A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012125281A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Acquisition system for an absorbent article comprising a fluid permeable structured fibrous web
WO2012125707A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2012125336A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012125701A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012161840A1 (en) 2011-03-15 2012-11-29 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2012162085A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fiber of starch- polymer -oil compositions
WO2012162130A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fibers of polymer-wax compositions
WO2012162083A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fibers of polymer-oil compositions
WO2014081778A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Starch-thermoplastic polymer-soap compositions and methods of making and using the same
WO2014081765A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Method of molding thermoplastic polymer compositions comprising hydroxylated lipids
WO2014081753A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Thermoplastic polymer compositions comprising hydrogenated castor oil, methods of making, and non-migrating articles made therefrom
WO2014081791A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Starch-thermoplastic polymer-grease compositions and methods of making and using the same
WO2014081749A2 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Polymer-soap compositions and methods of making and using the same
WO2014081751A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Polymer-grease compositions and methods of making and using the same
US8759606B2 (en) 2009-06-03 2014-06-24 The Procter & Gamble Company Structured fibrous web

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101092758B (en) * 2007-06-05 2010-11-10 东华大学 Module type air draft equipment in non-woven product line of spinning viscose
US20100310845A1 (en) * 2009-06-03 2010-12-09 Eric Bryan Bond Fluid permeable structured fibrous web
US20130089747A1 (en) 2011-05-20 2013-04-11 William Maxwell Allen, Jr. Fibers of Polymer-Wax Compositions
US9994982B2 (en) 2013-03-12 2018-06-12 Fitesa Germany Gmbh Extensible nonwoven fabric
CN104149342A (en) * 2014-07-25 2014-11-19 英华达（上海）科技有限公司 Quick forming device and method
ES2795402T3 (en) * 2016-01-27 2020-11-23 Reifenhaeuser Masch Device for the manufacture of spunbonded nonwovens
CN107190424A (en) * 2016-03-15 2017-09-22 常州阿尔丰机械有限公司 A kind of nonwoven production diffuser and its method of work
WO2017170242A1 (en) * 2016-03-30 2017-10-05 三井化学株式会社 Device for manufacturing non-woven fabric and method for manufacturing non-woven fabric
PL3460108T3 (en) * 2016-08-10 2022-06-13 Yamashin-Filter Corp. Fine fiber manufacturing method and fine fiber manufacturing apparatus
CZ2018647A3 (en) * 2018-11-23 2020-06-03 Reifenhäuser GmbH & Co. KG Maschinenfabrik Bulky nonwoven fabric with increased compressibility and improved regenerative ability
IT202000003074A1 (en) 2020-02-17 2021-08-17 Ramina S R L PLANT FOR THE PRODUCTION OF NON-WOVEN FABRIC AND PROCEDURE FOR THE PRODUCTION OF NON-WOVEN FABRIC
CN112411017B (en) * 2020-11-26 2021-10-22 浦江海工机械有限公司 Processing and production process of melt-blown non-woven fabric

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936253A (en) * 1974-05-24 1976-02-03 Allied Chemical Corporation Apparatus for melt-spinning synthetic fibers
DE3738326A1 (en) * 1987-04-25 1988-11-10 Reifenhaeuser Masch Spun-bonded web apparatus for the production of a spun-bonded web from synthetic endless filament
DE3927254A1 (en) * 1989-08-18 1991-02-21 Reifenhaeuser Masch METHOD AND SPINNING NOZZLE UNIT FOR THE PRODUCTION OF PLASTIC THREADS AND / OR PLASTIC FIBERS INTO THE PRODUCTION OF A SPINNING FLEECE FROM THERMOPLASTIC PLASTIC
DE4014414C2 (en) * 1990-05-04 1996-08-08 Reifenhaeuser Masch Plant for the production of a spunbonded nonwoven web from stretched plastic filaments
JPH0598505A (en) * 1991-10-08 1993-04-20 Mitsubishi Rayon Co Ltd Heater for direct spin drawing
DE4312419C2 (en) * 1993-04-16 1996-02-22 Reifenhaeuser Masch Plant for the production of a spunbonded nonwoven web from aerodynamically stretched plastic filaments
DE4409940A1 (en) * 1994-03-23 1995-10-12 Hoechst Ag Process for stretching filament bundles in the form of a thread curtain, device suitable therefor and its use for producing spunbonded nonwovens
JPH07268721A (en) * 1994-03-26 1995-10-17 Teijin Seiki Co Ltd Apparatus for heat-treating polyester fiber
DE19501125C2 (en) * 1995-01-17 1997-10-16 Reifenhaeuser Masch Process for producing a nonwoven web from thermoplastic polymer filaments
DE19504953C2 (en) * 1995-02-15 1999-05-20 Reifenhaeuser Masch Plant for the production of a spunbonded nonwoven web from thermoplastic continuous filaments
US5620785A (en) * 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
DE19521466C2 (en) * 1995-06-13 1999-01-14 Reifenhaeuser Masch Plant for the production of a spunbonded nonwoven web from thermoplastic continuous filaments
KR19990009821A (en) * 1997-07-11 1999-02-05 구광시 Manufacturing method of long fiber nonwoven fabric and apparatus therefor
JPH11286823A (en) * 1998-04-01 1999-10-19 Teijin Ltd Melt spinning apparatus
KR100534520B1 (en) * 1998-10-28 2006-03-14 주식회사 코오롱 A method for producing a spunbond nonwoven fabric and an apparatus for manufacturing the same.
JP3855546B2 (en) * 1999-08-04 2006-12-13 東レ株式会社 Method for producing polyester fiber

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010138832A1 (en) 2009-05-28 2010-12-02 Biomet Manufacturing Corp. Knee prosthesis
WO2010141577A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2010141578A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Structured fibrous web
WO2010141643A1 (en) 2009-06-03 2010-12-09 The Procter & Gamble Company Fluid permeable structured fibrous web
US9439816B2 (en) 2009-06-03 2016-09-13 The Procter & Gamble Company Structured fibrous web
US8759606B2 (en) 2009-06-03 2014-06-24 The Procter & Gamble Company Structured fibrous web
WO2012125538A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012125281A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Acquisition system for an absorbent article comprising a fluid permeable structured fibrous web
WO2012125707A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2012125336A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012125701A1 (en) 2011-03-15 2012-09-20 The Procter & Gamble Company Structured fibrous web
WO2012161840A1 (en) 2011-03-15 2012-11-29 The Procter & Gamble Company Fluid permeable structured fibrous web
WO2012162083A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fibers of polymer-oil compositions
WO2012162130A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fibers of polymer-wax compositions
WO2012162085A1 (en) 2011-05-20 2012-11-29 The Procter & Gamble Company Fiber of starch- polymer -oil compositions
EP3085733A1 (en) 2011-05-20 2016-10-26 The Procter and Gamble Company Fibers of polymer-oil compositions
EP3103833A1 (en) 2011-05-20 2016-12-14 The Procter and Gamble Company Fibers of polymer-wax compositions
WO2014081778A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Starch-thermoplastic polymer-soap compositions and methods of making and using the same
WO2014081765A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Method of molding thermoplastic polymer compositions comprising hydroxylated lipids
WO2014081753A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Thermoplastic polymer compositions comprising hydrogenated castor oil, methods of making, and non-migrating articles made therefrom
WO2014081791A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Starch-thermoplastic polymer-grease compositions and methods of making and using the same
WO2014081789A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Thermoplastic polymer compositions comprising hydroxylated lipid, methods of making, and non-migrating articles made therefrom
WO2014081749A2 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Polymer-soap compositions and methods of making and using the same
WO2014081751A1 (en) 2012-11-20 2014-05-30 The Procter & Gamble Company Polymer-grease compositions and methods of making and using the same

Also Published As

Publication number Publication date
ES2214983T3 (en) 2008-12-16
EP1323852A1 (en) 2003-07-02
JP2003213561A (en) 2003-07-30
KR100493981B1 (en) 2005-06-13
CN1427106A (en) 2003-07-02
US20030113394A1 (en) 2003-06-19
ATE406470T1 (en) 2008-09-15
ES2214983T1 (en) 2004-10-01
SI1323852T1 (en) 2008-12-31
KR20030051303A (en) 2003-06-25
MXPA02012303A (en) 2006-09-14
US6908292B2 (en) 2005-06-21
JP3645887B2 (en) 2005-05-11
CA2412719A1 (en) 2003-06-17
BR0205177B1 (en) 2013-11-26
BR0205177A (en) 2004-06-29
CN1274896C (en) 2006-09-13
DK1323852T3 (en) 2008-11-17
MY129489A (en) 2007-04-30
CA2412719C (en) 2007-01-16
DE50114266D1 (en) 2008-10-09

Similar Documents

Publication Publication Date Title
EP1323852B1 (en) Device for making a spunbond web
DE19620379C2 (en) Plant for the continuous production of a spunbonded nonwoven web
EP1340843B1 (en) Apparatus for the continuous production of a spunbonded web
DE4312419C2 (en) Plant for the production of a spunbonded nonwoven web from aerodynamically stretched plastic filaments
EP1630265B1 (en) Apparatus for the continuous production of a spunbonded web
EP0598463B1 (en) Process and apparatus for conveying and for laying continuous filaments bundle with air force
DE4036734C1 (en)
EP3575469B1 (en) Device and method for the manufacture of woven material from continuous filaments
DE4312309C2 (en) Process and devices for producing a spunbonded nonwoven sheet product
EP0230541B1 (en) Method for making randomly laid filament webs, and apparatus for carrying out this method
EP1637632B1 (en) Device for producing filaments from thermoplastic material
EP3771763B1 (en) Device and method for producing nonwoven fabric from crimped fibers
DE10139228A1 (en) Stretching device and method for producing stretched plastic filaments
DE19504953C2 (en) Plant for the production of a spunbonded nonwoven web from thermoplastic continuous filaments
EP3382080B1 (en) Method and device for producing a non-woven fabric from fibres
DE4220915A1 (en) Cooling filaments in high speed melt spinning - with cooling air supplied by entrainment in perforated first section of cooling chimney
EP3575468B1 (en) Device and method for the manufacture of woven material from continuous filaments
DE2220575A1 (en) Apparatus for producing a non-woven textile web
EP1396567B2 (en) Method of producing a nonwoven web of bicomponent filaments
DE2732012C2 (en) Process for the production of glass fibers
EP0480550A1 (en) Process and apparatus for producing spunbonded nonwoven
EP3382082B1 (en) Device for the manufacture of woven material from continuous filaments
EP3771762B1 (en) Device and method for producing a fibre web
EP4123073B1 (en) Method and device for producing a non-woven fabric from fibres
DE3807483A1 (en) Device for uniform laying down of the filaments in the manufacture of a bonded fabric using the direct method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020705

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AXX Extension fees paid

Extension state: SI

Payment date: 20030819

Extension state: LT

Payment date: 20030819

Extension state: LV

Payment date: 20030819

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRCL

GBC Gb: translation of claims filed (gb section 78(7)/1977)
REG Reference to a national code

Ref country code: GR

Ref legal event code: PP

Ref document number: 20040300017

Country of ref document: GR

EL Fr: translation of claims filed
TCNL Nl: translation of patent claims filed
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: LT LV SI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50114266

Country of ref document: DE

Date of ref document: 20081009

Kind code of ref document: P

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2214983

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20080403009

Country of ref document: GR

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20080827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080827

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090127

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20090528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080827

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20201227

Year of fee payment: 20

Ref country code: FR

Payment date: 20201228

Year of fee payment: 20

Ref country code: SE

Payment date: 20201227

Year of fee payment: 20

Ref country code: GR

Payment date: 20201222

Year of fee payment: 20

Ref country code: DK

Payment date: 20201227

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20201223

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20201223

Year of fee payment: 20

Ref country code: NL

Payment date: 20201223

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20201224

Year of fee payment: 20

Ref country code: TR

Payment date: 20201216

Year of fee payment: 20

Ref country code: ES

Payment date: 20210108

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20201231

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50114266

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20211217

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20211216

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20211216

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20211216

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20211217

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20211218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211217