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EP2665853A1 - Dispositif et procédé pour la fabrication d'un tissu composite non-tisse - Google Patents

Dispositif et procédé pour la fabrication d'un tissu composite non-tisse

Info

Publication number
EP2665853A1
EP2665853A1 EP12702457.8A EP12702457A EP2665853A1 EP 2665853 A1 EP2665853 A1 EP 2665853A1 EP 12702457 A EP12702457 A EP 12702457A EP 2665853 A1 EP2665853 A1 EP 2665853A1
Authority
EP
European Patent Office
Prior art keywords
support structure
nonwoven
fleece
water jet
layer
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.)
Withdrawn
Application number
EP12702457.8A
Other languages
German (de)
English (en)
Inventor
Ullrich MÜNSTERMANN
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Truetzschler Nonwovens GmbH
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 Truetzschler Nonwovens GmbH filed Critical Truetzschler Nonwovens GmbH
Publication of EP2665853A1 publication Critical patent/EP2665853A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet

Definitions

  • the invention relates to a device for producing a non-woven fabric composite according to the preamble of claim 1 and a method according to claim 5.
  • Nonwoven fabric compounds are known from numerous publications.
  • DE 44 10 110 C2 shows a filter material for cleanable separators.
  • a support fabric is surrounded on both sides by a nonwoven layer, by means of water jets, the fibers are swirled through the openings of the metal fabric.
  • a multilayer composite which may also comprise metal fibers, is known from DE 103 16 259 A1.
  • the layers are needled together by means of water jets under high pressure ( ⁇ 200 bar).
  • a support fabric for filters surrounded on both sides by fibers is known from DE 103 49 298 B4. In the manufacture of a needling and in particular also an application of high pressure water jets are used.
  • a filter fabric with PTEF fibers and glass fibers, which are connected to a fabric by water jet needling, is known from EP 0 226 471 A2.
  • nonwoven fabric webs described in the documents are rolled goods. For some applications, e.g. papermaking, but also endless nonwoven webs are needed.
  • the object of the invention is to provide a device and a method with which or in the endless nonwoven fabric composites are particularly simple and inexpensive to produce.
  • a feed device for a nonwoven which can be brought into contact with the carrier structure and can be moved further in contact therewith
  • a device for water jet needling by which the web is connectable to the support structure.
  • a clamping device through which the support structure is stretched in the water jet needling at least in one direction.
  • the tensioning of the screen fabric or the grid is carried out in a simple manner in the direction of rotation of the Carrier structure, ie the band is stretched in the circumferential direction. This is preferably done by one of the deflection rollers.
  • In addition and further education can also be a tensioning of the fabric, the grid transverse to the direction, ie in the width of the belt, including cooperating with the band edge jigs that rotate with this in the water jet needling to provide.
  • the compacting device by means of which the carrier structure supplied fleece brought into contact with this and the means for water jet needling is supplied.
  • the compacting device consists of a roller or preferably of a screen belt tensioned by rollers, through which compresses a voluminous web and in particular in the compressed state undergoes the first Wasserstrahlbeetzwegung.
  • a feed device for one or both nonwoven layers essentially consists of a roll providing the fleece.
  • guide and pressure rollers may be provided, through which the nonwoven applied to the carrier structure is pressed against this.
  • the support structure formed as a closed belt at least once rotates and so - except for an overlap area - covered by exactly one layer fleece and connected to this. Furthermore, it is possible to pass through the carrier structure belt several revolutions and thereby apply several layers of fleece on each side of the support structure and to strengthen and consolidate.
  • the product thus obtained can be removed from the guide rollers and be inserted again after the eversion in the inventive device.
  • the support structure now runs on the previously applied nonwoven side over the deflection rollers, wherein now applied to the outer support structure, a new nonwoven layer and is hydrodynamically needled while revolving with the support structure.
  • one or more cycles are possible by which are then applied according to one or more nonwoven layers.
  • another type of nonwoven fabric with different grammage, other fiber structure and thus other properties is applied.
  • the nonwoven layers it is possible for the nonwoven layers to be applied on both sides of the carrier structure during one revolution, that is to say without removing the carrier structure band and putting it back upturned.
  • the device according to the invention then comprises two feed devices, wherein a first nonwoven layer is fed by the first feed device to one side of the carrier structure strip and a second nonwoven layer by the second feed device to the second side of the carrier structure strip.
  • two devices for waterjet needling are provided, by means of which the nonwoven layers surrounding the carrier structure strip on both sides are needled with the carrier structure.
  • the device according to the invention is preferably suitable for the production of felts (wet felt, dry felt), as used in the production of paper. It is also possible to produce bag filters for, for example, cement production.
  • a monofilament screen fabric having a basis weight of 700 g / m 2 is used as the support structure.
  • the density of the weft and warp threads is between 80 and 90 wires / 10 cm.
  • the screen mesh is surrounded on both sides by a nonwoven layer (fibers between 20 and 40 dtex) with a weight per unit area of 150 - 300 g / m 2 and water jet needled from each side.
  • the water jet needling on each side of the support structure is effected by means of two nozzle bars having a hole diameter between 0.1 and 0.2 mm, with a hole density between 10 and 40 holes per inch (Hpi).
  • the water pressure in the first nozzle bar (based on the movement of the belt) was 50 bar - hole diameter 0.12 mm - 40 Hpi - holes in a row - distance jet strip fleece underlay or screen drum 26 mm (further this information is like follows indicated: 50 bar - 0.12-40-1 26mm).
  • the values for pressure and nozzle strips were:
  • the band After everting and reloading the band (the now present nonwoven support structure), a further nonwoven layer is placed on the second side of the support structure during the second pass.
  • the values are 50 bar - 0.12-40-1 26 mm and 350 bar - 0.20-10-1 10 mm.
  • the support structure is clamped on at least two, preferably at least four deflection rollers and moved circumferentially around them.
  • the support structure can be stretched in the region of the application of water jet in at least one direction by means of a tensioning device.
  • a second web may be applied to a second side of the support structure opposite the first side and connected to the support structure by means of pressurized water jets.
  • a system comprising a device and a carrier structure for producing a nonwoven fabric composite, wherein at least one layer of a nonwoven fabric can be applied to the carrier structure by means of a water jet needling and can be connected thereto.
  • the device has at least one feeding device, by means of which the fleece can be applied to the carrier structure, and at least one device for water jet needling, by means of which the fleece can be connected to the carrier structure.
  • the support structure is formed as an endless belt and the apparatus has a number of guide rollers, wherein the support structure formed as an endless belt stretched on the number of guide rollers and is circumferentially movable.
  • FIG. 1 shows a device for receiving a closed (endless)
  • FIG. 2 shows the device according to FIG. 1, wherein a second nonwoven layer is applied to the second side of the carrier structure
  • Fig. 4 shows another embodiment.
  • Figure 1 shows an apparatus for receiving a formed as a closed or endlo ⁇ ses belt support structure S, formed in accordance with the exemplary embodiment as a screen mesh, and having corresponding openings.
  • the band is pulled around a number of guide rollers U and tensioned by means of an adjustable deflecting roller US.
  • the clamping direction of the tensioning guide roller US is indicated by the arrow.
  • the tensioned band of the support structure runs in the direction of the arrow around the deflection rollers U, US and a needle drum ST1 designed as a needling drum with a suction, not shown.
  • the suction drum are associated with two nozzle bars Dil, D12, which can be acted upon by high pressure water and are connected to a high pressure pump, not shown.
  • Dil nozzle bars
  • D12 nozzle strips are inserted with a certain hole spacing and a specific hole size.
  • a nonwoven fabric, a first nonwoven layer VI is removed and placed on the band of the support structure S.
  • the nonwoven VI lying on the carrier structure S now runs together with the latter onto the suction drum ST1 and experiences a hydrodynamic impingement there through the nozzle bars Dil, D12. the web is subjected to high pressure water jets.
  • the openings in the fabric are stretched, enlarged, so that the fibers of the nonwoven fabric VI are more easily driven through the hydrodynamic impingement.
  • the nonwoven layer VI thus experiences a solidification and at the same time a fixation on the support structure S receiving it.
  • FIG. 1 the composite of carrier structure S and nonwoven layer VI created by the hydrodynamic impingement is shown enlarged.
  • the support structure S is shown before the laying of the nonwoven layer VI and the hydrodynamic loading.
  • the support structure S with the laid-up fleece VI runs around at least once, wherein additionally a small overlapping area is created.
  • an endless belt is produced, consisting of the support structure S and a layer of the nonwoven VI solidified by the hydrodynamic impingement and bonded to the structure S. If now this band S, VI relaxed and removed from the guide rollers U, US, so the support structure S shrinks to its original dimension and the fixation of the driven through the openings fibers of the nonwoven VI is reinforced.
  • FIG. 2 shows the band S, V inserted into the device according to the invention in conjunction with two enlargements, wherein one enlargement shows the inverted band S, VI, as created in the process according to FIG. 1, and the second enlargement shows the one on both sides Fleece VI, V2 created band VI, S, V2 after the hydrodynamic impingement by means of the nozzle beam D21, D22.
  • FIG. 3 shows a further embodiment of the invention, in which the nonwoven layers VI, V2 are fed via two feed devices RV1, RV2 assigned to the two sides of the carrier structure S.
  • the band of the support structure S is guided by means of the guide rollers U, US to two suction drums ST1, ST2, which are respectively downstream of one of the feeders RVL, RV2 and which cooperate with nozzle bars Di l, D12, D21, D22.
  • the hydrodynamic loading by the nozzle bars Di l, D12, D21, D22 takes place here, once on the one and then on the other side of the support structure S, such that the nonwoven layer VI, V2 previously brought into contact with the support structure S respectively lying above a hydrodynamic impingement.
  • FIG. 4 shows a further exemplary embodiment. It shows a device for receiving a support structure S designed as an endless belt, the device being similar to the device of FIGS. 1 and 2.
  • the device according to Figure 4 has only four guide rollers Ul, U2, U3 and US and instead of the suction drum on a suction box SK.
  • the suction box SK is arranged at a distance from the support structure S.
  • At least one nozzle bar D31 is arranged above the carrier structure S in the area of the case block SK.
  • fleece VI can be acted upon by water jets, so that the fleece VI with the support structure S is connectable.
  • the fleece VI is connected to the support structure S in that fibers of the fleece VI pass through the openings of the support structure S when exposed to the jets of water.
  • the suction box SK sucks off the water passing through the nonwoven fabric and the support structure S.
  • Trained as an endless belt support structure S can be tensioned by means of the guide roller US.
  • the guide roller Ul is driven.
  • Turn the diverter roller Ul is the support structure S around the guide roller Ul, U2, U3 and US circumferentially movable.
  • the support structure S designed as a band can be removed, reversed and tensioned again on the deflection rollers U1, U2, U3 and US.
  • a further fleece V2 can then be deposited on the second side of the carrier structure S opposite the first side and water jets are also applied to the jet bar D31 so that the second fleece V2 is also connected to the carrier structure S.
  • the compacting device may comprise a compacting roll or preferably a compaction belt stretched around rollers.
  • Such Kompaktierband can be angeodnet so that the respective Kompaktierband presses the respective nonwoven on the support structure and thereby compressed.
  • the jets of water can be applied to the respective compressed web through the apertured compacting belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne un dispositif de fabrication d'un tissu composite non-tissé. Selon l'invention, une couche de non-tissé est déposée par aiguilletage à jet d'eau sur une structure porteuse et y est liée. Selon l'invention, il est prévu un certain nombre de cylindres de renvoi (U, US) sur lesquels est tendue et mise en rotation une structure porteuse (S) conçue comme une bande fermée se présentant sous forme de toile de tamis ou de tissu à structure en treillis, un dispositif d'alimentation (V1R) pour un non-tissé (V1) mis en contact avec la structure porteuse (S) et entraîné conjointement en contact avec celle-ci et un dispositif pour l'aiguilletage à jet d'eau (D11, D12, ST1) pour lier le non-tissé (V1) à la structure porteuse (S).
EP12702457.8A 2011-01-22 2012-01-20 Dispositif et procédé pour la fabrication d'un tissu composite non-tisse Withdrawn EP2665853A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011009227A DE102011009227A1 (de) 2011-01-22 2011-01-22 Vorrichtung zum Herstellen eines Vlies-Gewebeverbundes
PCT/EP2012/050857 WO2012098223A1 (fr) 2011-01-22 2012-01-20 Dispositif et procédé pour la fabrication d'un tissu composite non-tisse

Publications (1)

Publication Number Publication Date
EP2665853A1 true EP2665853A1 (fr) 2013-11-27

Family

ID=45562981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12702457.8A Withdrawn EP2665853A1 (fr) 2011-01-22 2012-01-20 Dispositif et procédé pour la fabrication d'un tissu composite non-tisse

Country Status (5)

Country Link
US (1) US9181643B2 (fr)
EP (1) EP2665853A1 (fr)
CN (1) CN103328709A (fr)
DE (1) DE102011009227A1 (fr)
WO (1) WO2012098223A1 (fr)

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DE102015002393B3 (de) * 2015-02-20 2016-04-21 Siegfried Langhein Atemschutzmaske
DE102015112955A1 (de) * 2015-04-13 2016-10-13 TRüTZSCHLER GMBH & CO. KG Anlage und Verfahren zur Verbindung bzw. Verfestigung einer Bahn von Faserstoff mit einem Vlies
WO2018178180A1 (fr) 2017-03-28 2018-10-04 Mann+Hummel Gmbh Matériau non-tissé voie fondue, objet comprenant un matériau non-tissé voie fondue, média filtrant, élément filtrant et leur utilisation
DE102017002957A1 (de) 2017-03-28 2018-10-04 Mann+Hummel Gmbh Spinnvliesstoff, Filtermedium, Filterelement und deren Verwendung und Filteranordnung
CN110203730A (zh) * 2019-07-09 2019-09-06 四川环龙技术织物有限公司 一种造纸毛毯针刺机放卷装置
CN114855362A (zh) * 2022-05-19 2022-08-05 济南永信新材料科技有限公司 一种立体提花水刺无纺布及其制备方法和立体提花辊筒
DE102023119892A1 (de) 2023-07-27 2025-01-30 Voith Patent Gmbh Verfahren und Filz
DE102023119894A1 (de) 2023-07-27 2025-01-30 Voith Patent Gmbh Verfahren und Vorrichtung

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Also Published As

Publication number Publication date
US9181643B2 (en) 2015-11-10
WO2012098223A1 (fr) 2012-07-26
US20130291355A1 (en) 2013-11-07
DE102011009227A1 (de) 2012-07-26
CN103328709A (zh) 2013-09-25

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