DE10001957A1 - Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching - Google Patents

Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching

Info

Publication number
DE10001957A1
DE10001957A1 DE10001957A DE10001957A DE10001957A1 DE 10001957 A1 DE10001957 A1 DE 10001957A1 DE 10001957 A DE10001957 A DE 10001957A DE 10001957 A DE10001957 A DE 10001957A DE 10001957 A1 DE10001957 A1 DE 10001957A1
Authority
DE
Germany
Prior art keywords
fleece
fibers
consolidation
needling
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Withdrawn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
DE10001957A
Other languages
German (de)
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
Fleissner 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7627904&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE10001957(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Priority to DE10001957A priority Critical patent/DE10001957A1/en
Priority to ES01907450T priority patent/ES2239125T3/en
Priority to CN01803853A priority patent/CN1395636A/en
Priority to BR0107670-1A priority patent/BR0107670A/en
Priority to AT01907450T priority patent/ATE291656T1/en
Priority to EP01907450A priority patent/EP1294971B1/en
Priority to US10/169,909 priority patent/US20030101556A1/en
Priority to EA200200773A priority patent/EA003594B1/en
Priority to DE50105700T priority patent/DE50105700D1/en
Priority to CA002396976A priority patent/CA2396976A1/en
Priority to PCT/EP2001/000406 priority patent/WO2001053589A1/en
Priority to IL15072001A priority patent/IL150720A0/en
Priority to KR1020027008980A priority patent/KR20020071936A/en
Priority to DK01907450T priority patent/DK1294971T3/en
Priority to JP2001553443A priority patent/JP2003527495A/en
Publication of DE10001957A1 publication Critical patent/DE10001957A1/en
Priority to IL150720A priority patent/IL150720A/en
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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • D04H1/49—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 in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • 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
    • D04H1/407—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 containing absorbing substances, e.g. activated carbon
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • 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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/556—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 by welding together the fibres, e.g. by partially melting or dissolving by infrared heating
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Reinforced Plastic Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

A non-woven (4) consisting of outer layers of fibers that can be melt bonded, e.g. bi-component or homopolymer fibers, and a central layer of cellulose or super-absorbent pulp fibers is air laid in successive layers from laying heads (1, 2, 3). The non-woven is then optionally consolidated by heat (5), needle punched by a water jet treatment (6, 7) on both sides and finally dried (8). Alternatively the initial heat consolidation (5) is omitted and heat bonding is combined with the drying stage followed by sizing in a calender.

Description

Aus der WO 97/30223 ist ein air-lay-Verfahren zur Herstellung eines Kompositvlieses bekannt, bei dem mehrere Luftlege-Formköpfe der Art nach der EP 0 032 772 hinter­ einander angeordnet sind und ein Kompositvlies aus Bindefasern, dann Zellulosefa­ sern und wieder Bindefasern herstellen. Diese Herstellungsart hat gegenüber der Krempelvliesbildung den Vorteil der höher erzielbaren Geschwindigkeit. Zur Verfesti­ gung dient dann im Anschluss ein Kalander und ein Durchlüftungsaggregat, die mit Hitze die Bindefasern aneinander heften sollen.WO 97/30223 describes an air-lay process for producing a composite nonwoven is known in which several air-laying molding heads of the type according to EP 0 032 772 behind are arranged together and a composite fleece made of binding fibers, then cellulose fiber and make binding fibers again. This type of production has compared to the Carding fleece formation the advantage of the higher achievable speed. To the festival Then a calender and a ventilation unit are used, which with Heat to bind the binding fibers together.

Eine Verfestigung dieser Art lässt kein Vlies entstehen, das die Bedingungen in der Praxis erfüllt. Die einzelnen Schichten haben keinen Zusammenhalt, die Vliesbe­ standteile delaminieren, sie splitten sich. Außerdem sind die Vliesoberflächen ver­ schleißanfällig.A consolidation of this kind does not create a fleece that meets the conditions in the Practice fulfilled. The individual layers have no cohesion, the fleece Delaminate parts, they split. In addition, the fleece surfaces are ver susceptible to wear.

Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zu finden, aus welchen Fasern ein solches Vlies für das air-lay-Verfahren zusammengesetzt und dann wie dieses verfestigt werden sollte, um unter anderem die Delaminierung zu verhindern.The invention has for its object to find a method from which fibers assembled such a fleece for the air-lay process and then like this should be solidified, among other things to prevent delamination.

Ausgehend von einem Verfahren, bei dem zur Verfestigung eines nach dem Luftlege­ verfahren hergestellten Vlieses - bestehend aus zwei äußeren Schichten aus ge­ schnittenen thermisch aktivierbaren Fasern und einer zwischen diesen angeordneten Schicht aus Zellulosefasern wie superabsorbierendem Pulp durch fortlaufendes Bilden zuerst der Unterschicht, dann Auflage der Pulpschicht und letztlich der Oberschicht - lediglich eine thermische Behandlung vorgesehen ist, ist nach der Erfindung vorgese­ hen, die thermisch aktivierbaren Stapelfasern allein aus Schmelzklebefasern wie ins­ besondere Bikomponentenfasern oder und anderen Fasern, wie Homopolymerfasern, zu wählen und das dreilagige Vlies zur Verfestigung, also auch zur innigen Verbindung der Schichten einer hydrodynamischen Vernadelung zu unterziehen.Starting from a process in which to solidify one after air laying process produced fleece - consisting of two outer layers of ge cut thermally activated fibers and one arranged between them Layer of cellulose fibers such as superabsorbent pulp by continuous formation first the lower layer, then the pulp layer and finally the upper layer - only a thermal treatment is provided is vorese according to the invention hen, the thermally activated staple fibers solely from hot melt adhesive fibers such as ins special bicomponent fibers or and other fibers, such as homopolymer fibers, to choose and the three-layer fleece for strengthening, so also for intimate connection to subject the layers to hydrodynamic needling.

Diese Art der Vlieszusammensetzung der Deckschichten garantiert eine pilling- und lintingfreie Oberfläche, die dennoch flüssigkeitsdurchlässig ist und auch eine stärkere saugfähige Pulpschicht abdecken kann. Die beiden Außenschichten des Vlieses dieser Art werden durch die Wasservernadelung intensiv verfestigt und auch mit der Pulpschicht verbunden, was das gefürchtete Laminieren der Fasersorten nach der Verfestigung behindert. Zur ausreichenden Verfestigung der Deckschichten sind vor­ zugsweise beide Schichten mit der Wasservernadelung zu behandeln, also das Kom­ positvlies auf beiden Seiten zu vernadeln.This type of fleece composition of the cover layers guarantees a pilling and linting-free surface that is still permeable to liquid and also a stronger one can cover absorbent pulp layer. The two outer layers of the fleece this  The species are intensified by the needling of water and also with the Pulp layer connected, which is the dreaded lamination of the fiber types after the Solidification hindered. Adequate consolidation of the surface layers are required preferably treat both layers with water needling, i.e. the com Needle fleece on both sides.

Die Schmelzklebefasern sollten zur weiteren Verbindung an- und miteinander mittels Hitze behandelt werden. Die Hitze beeinflusst weiterhin die geforderte Oberflächenbe­ schaffenheit des Vlieses. Dabei ist die Bikomponentenfaser von besonderem Vorteil, weil sie bei der Hitzebehandlung als eigentliche Faser erhalten bleibt, während die üb­ rigen Schmelzklebefasern schmelzen und schrumpfen können, was für die Bildung der widerstandsfähigen Oberfläche von Nachteil ist. Die Hitzebehandlung kann auf unter­ schiedlichste Art erfolgen, wesentlich ist eine gute Bindung der Fasern an der Oberflä­ che und quer durch das Deckvlies.The hot melt adhesive fibers should be connected to and with each other for further connection Heat treated. The heat continues to affect the required surface finish Creativity of the fleece. The bicomponent fiber is particularly advantageous, because it remains in the heat treatment as the actual fiber, while the ex hot melt adhesive fibers can melt and shrink, leading to the formation of resistant surface is a disadvantage. The heat treatment can be on under a wide variety of types, essential is a good binding of the fibers to the surface across the cover fleece.

Eine Vorrichtung der erfindungsgemäßen Art ist in der Zeichnung beispielhaft darge­ stellt. Anhand dieses Beispiels sind noch weitere erfinderischen Details zu erläutern. Es zeigen:A device of the type according to the invention is exemplified in the drawing poses. Based on this example, further inventive details are to be explained. Show it:

Fig. 1 In der Seitenansicht eine Kontinueanlage zur Herstellung und Verfestigung eines trocken nach dem air-lay-Verfahren gelegten Vlieses und Fig. 1 is a side view of a continuous system for the production and consolidation of a fleece laid dry by the air-lay method and

Fig. 2 eine Anlage ähnlich der nach Fig. 1 ohne Thermobonding nach dem Legeverfahren. Fig. 2 shows a system similar to that of FIG. 1 without thermal bonding after the laying process.

Zunächst ist das Vlies aus Stapelfasern und Pulp zu bilden. Die Stapelfasern müssen so kurz geschnitten sein, dass sie nach dem air-lay-Verfahren mit Vorrichtungen ge­ mäß z. B. der EP-A-0 032 772 gelegt werden können, das heißt sie haben eine Länge von 4-8 - maximal 10 mm Länge. Der Formkopf 1 ist dann für die Grundvliesschicht mit den Stapelfasern zu beschicken. Die Stapelfasern sind solche, die unter Hitzeein­ wirkung zum Kleben zu bringen sind. Vorteilhaft sind hier insbesondere Bikompone­ tenfasern, die den Vorteil haben, dass sie bei der Hitzeinwirkung nicht schrumpfen, sondern als Faser erhalten bleiben. Auf das mit dem Formkopf 1 gebildete Grundvlies wird dann die Pulpschicht mit dem Formkopf 2, ggf. noch mit einem weiteren nicht dar­ gestellten Formkopf eine dickere Pulpschicht, und dann noch die obere Deckschicht aus den Stapelfasern übereinander aufgeschichtet. Dieses Kompositvlies 4 ist nun zu verfestigen, was bisher nur mittels Thermobonding erfolgt ist. First, the fleece is to be formed from staple fibers and pulp. The staple fibers must be cut so short that according to the air-lay method with devices according to z. B. EP-A-0 032 772 can be placed, that is, they have a length of 4-8 - maximum 10 mm in length. The molding head 1 is then to be loaded with the staple fibers for the basic nonwoven layer. The staple fibers are those that have to be glued under the influence of heat. In particular, bicomponent fibers are advantageous here, which have the advantage that they do not shrink when exposed to heat, but are retained as fibers. Then on the base fleece formed with the molding head 1 , the pulp layer with the molding head 2 , possibly with a further molding head not shown, a thicker pulp layer, and then the top cover layer of the staple fibers are stacked on top of one another. This composite fleece 4 is now to be consolidated, which has previously only been done by means of thermal bonding.

Nach der Anlage nach Fig. 1 wird das Vlies 4 zunächst mittels Hitze in der Vorrichtung 5 vorverfestigt. Dies kann mittels Heißluft (Durchlüftung), aber auch mit Beaufschla­ gung von Infrarotstrahlen oder mit Kalandrieren erfolgen. Diese Maßnahme des Vor­ verfestigens hat den Vorteil der besseren Oberflächenschließung der Deckschichten, was einen größeren Pulpverlust beim sich anschließenden Vernadeln verhindern kann. Bei der Anlage nach Fig. 2 ist auf diese Vorverfestigung unter Hitze verzichtet. Je nach Faser und sonstigen Bedingungen kann also auch auf die Vorverfestigung ver­ zichtet werden.After the installation according to Fig. 1, the web 4 is first pre-consolidated by means of heat in the device 5. This can be done with hot air (ventilation), but also with exposure to infrared rays or with calendering. This measure of solidifying before has the advantage of better surface closure of the cover layers, which can prevent a greater loss of pulp during subsequent needling. In the system of FIG. 2 is omitted in this pre-consolidation under heat. Depending on the fiber and other conditions, pre-consolidation can also be dispensed with.

Anschließend wird das Kompositvlies 4 mit der hydrodynamischen Vernadelung beauf­ schlagt. Da es sich hier um ein Vlies mit beidseitiger Deckschicht handelt, ist es zweckmäßig, die Verfestigung mit den Wasserstrahlen von beiden Seiten durchzufüh­ ren. Deshalb ist in den Figuren die Vernadelungseinrichtung mit zwei Trommeln 6 und 7 dargestellt, was nur andeuten soll, dass das Vlies mäanderförmig um die Trommeln zur beidseitigen Beaufschlagung mit Wasserstrahlen transportiert werden soll. Diese Wasserstrahlverfestigung beeinflusst nicht nur die Oberfläche des Kopositvlieses, sondern auch den tieferen Zusammenhalt der Schichten, so dass ein späteres Delami­ nieren der einzelnen Vliesschichten nicht mehr aufritt.The composite fleece 4 is then struck with the hydrodynamic needling. Since this is a fleece with a cover layer on both sides, it is expedient to carry out the consolidation with the water jets from both sides. Therefore, the needling device with two drums 6 and 7 is shown in the figures, which is only intended to indicate that the fleece meandering around the drums to be loaded on both sides with water jets. This hydroentanglement not only affects the surface of the composite fleece, but also the deeper cohesion of the layers, so that delamination of the individual fleece layers later no longer occurs.

Nach der Verfestigung des Kompositvlieses und auch der Verbindung der Schichten miteinander mittels den Wasserstrahlen ist das Vlies zu trocknen. Dazu ist vorteilhaft­ erweise ein Durchlüftungstrockner 8, wie Siebtrommeltrockner vorteilhaft. Abschlie­ ßend kann das Vlies noch mittels der Einrichtung 9 kalibriert werden, wie es nur in der Anlage nach Fig. 2 dargestellt ist.After the composite fleece has solidified and the layers have been joined together by means of the water jets, the fleece must be dried. For this purpose, a ventilation dryer 8 , such as a sieve drum dryer, is advantageous. Finally, the fleece can still be calibrated by means of the device 9 , as is only shown in the system according to FIG. 2.

Diese Art der Kopositvliesherstellung ist sehr kostengünstig, weil mit höheren Ge­ schwindigkeiten, wie z. B. 400-500 m/min produziert werden kann. Es kann ein sehr saugfähiges Produkt vom 40-100 g/m2 hergestellt werden, da eine dicke Pulpschicht aufgelegt werden kann. Dabei sollten die Deckschichten im Verhältnis zur Pulpschicht dünn sein z. B. mit 10 g/m2, während die Pulpschicht 60 g/m2 schwer sein kann. Durch eine Kombination von Thermobonding und Wasservernadeln ist nicht nur die Oberflä­ che im wesentlichen frei von Linting und Pilling, sondern das Vlies ist durch und durch verfestigt, was ein Aufteilen der Vliesschichten erschwert.This type of composite nonwoven is very inexpensive because at higher speeds, such as. B. 400-500 m / min can be produced. A very absorbent product of 40-100 g / m 2 can be produced because a thick pulp layer can be applied. The cover layers should be thin in relation to the pulp layer, e.g. B. with 10 g / m 2 , while the pulp layer can be 60 g / m 2 heavy. Through a combination of thermal bonding and water needling, not only is the surface essentially free of linting and pilling, but the nonwoven is solidified through and through, which makes it difficult to divide the nonwoven layers.

Claims (12)

1. Verfahren zur Verfestigung eines nach dem Luftlegeverfahren hergestellten Vlie­ ses, bestehend aus zwei äußeren Schichten aus geschnittenen thermisch akti­ vierbaren Fasern und einer zwischen diesen angeordneten Schicht aus Zellulo­ sefasern wie superabsorbierendem Pulp durch fortlaufendes Bilden zuerst der Unterschicht, dann Auflage der Pulpschicht und letztlich der Oberschicht, da­ durch gekennzeichnet, dass die thermisch aktivierbaren Stapelfasern allein aus Schmelzklebefasern wie insbesondere Bikomponentenfasern oder und anderen Fasern, wie Homopolymerfasern, bestehen und das dreilagige Vlies zur Verfesti­ gung, also auch der innigen Verbindung der Schichten einer hydrodynamischen Vernadelung unterzogen wird.1. A process for solidifying a fleece produced by the air-laying process, consisting of two outer layers of cut thermally activatable fibers and an interposed layer of cellulose fibers such as superabsorbent pulp by continuously forming first the underlayer, then layering the pulp layer and finally the Upper layer, as characterized in that the thermally activatable staple fibers consist solely of hot-melt adhesive fibers such as, in particular, bicomponent fibers and and other fibers, such as homopolymer fibers, and the three-layer fleece is subjected to hydrodynamic needling for consolidation, that is to say also the intimate connection of the layers. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zusätzlich zu der Ver­ festigung mittels der hydrodynamischen Vernadelung das Kompositvlies mittels einer thermische Verfestigung behandelt wird.2. The method according to claim 1, characterized in that in addition to the Ver consolidation of the composite fleece by means of hydrodynamic needling thermal consolidation is treated. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass unter der thermischen Verfestigung die Behandlung des Vlieses mit jeder Art der Hitzebehandlung zu verstehen ist, nämlich die z. B. mit Heißluft, insbesondere der Durchbelüftung, mit Infrarot, mit Kalander.3. The method according to claim 2, characterized in that under the thermal Solidify the treatment of the fleece with every type of heat treatment understand, namely the z. B. with hot air, in particular ventilation, with infrared, with calender. 4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Komposit­ vlies vor und/oder nach der Wasservernadelung zur Verfestigung thermisch be­ handelt wird.4. The method according to claim 2 or 3, characterized in that the composite fleece before and / or after water needling for solidification will act. 5. Verfahren nach einem der Ansprüche 2-4, dadurch gekennzeichnet, dass die thermische Verfestigung zusammen mit der Trocknung des Vlieses nach der Wasservernadelung durchgeführt wird. 5. The method according to any one of claims 2-4, characterized in that the thermal consolidation together with the drying of the fleece after the Water needling is carried out.   6. Verfahren nach einem der Ansprüche 2-5, dadurch gekennzeichnet, dass zum Schluss der Verfestigung das Kompositvlies noch kalibriert wird.6. The method according to any one of claims 2-5, characterized in that for At the end of the consolidation, the composite fleece is still calibrated. 7. Verfahren nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass die hydrodynamische Behandlung auf beiden Seiten des Kompositvlieses durchge­ führt wird.7. The method according to any one of claims 1-6, characterized in that the hydrodynamic treatment on both sides of the composite fleece leads. 8. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1-7 bestehend aus hintereinander in Linie angeordneten
  • a) zumindest drei Formköpfen, einem für die erste Schicht aus thermisch aktivierbaren Fasern, einem für den Pulp und einem für die obere Abdeck­ schicht wieder für die thermisch aktivierbaren Fasern, und einem
  • b) Vliesverfestigungsaggregat,
dadurch gekennzeichnet, dass
  • a) das Vliesverfestigungsaggregat aus einer Vorrichtung zum hydrodynamischen Vernadeln (6, 7) und einem Trockner (8) besteht.
8. Device for performing the method according to any one of claims 1-7 consisting of one behind the other in line
  • a) at least three mold heads, one for the first layer of thermally activatable fibers, one for the pulp and one for the upper cover layer again for the thermally activatable fibers, and one
  • b) fleece bonding unit,
characterized in that
  • a) the nonwoven bonding unit consists of a device for hydrodynamic needling ( 6 , 7 ) and a dryer ( 8 ).
9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass vor der Vorrichtung zum hydrodynamischen Vernadeln
  • a) eine Vorrichtung (5) zur thermischen Verfestigung angeordnet ist.
9. The device according to claim 8, characterized in that before the device for hydrodynamic needling
  • a) a device ( 5 ) for thermal hardening is arranged.
10. Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass nach der Vorrichtung zur hydrodynamischen Vernadelung
  • a) eine Vorrichtung (8) zur thermischen Verfestigung angeordnet ist.
10. The device according to claim 8 or 9, characterized in that after the device for hydrodynamic needling
  • a) a device ( 8 ) for thermal hardening is arranged.
11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Vorrichtung (8) zum thermischen Verfestigen nach dem hydrodynamischen Vernadeln zunächst zum Trocknen des Vlieses vorgesehen ist.11. The device according to claim 10, characterized in that the device ( 8 ) for thermal consolidation after hydrodynamic needling is initially provided for drying the fleece. 12. Vorrichtung nach einem der Ansprüche 8-11, dadurch gekennzeichnet, dass als letztes Aggregat zur Behandlung des Kompositvlieses eine Kalibriervorrichtung (9) angeordnet ist.12. Device according to one of claims 8-11, characterized in that a calibration device ( 9 ) is arranged as the last unit for treating the composite fleece.
DE10001957A 2000-01-18 2000-01-18 Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching Withdrawn DE10001957A1 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
DE10001957A DE10001957A1 (en) 2000-01-18 2000-01-18 Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching
JP2001553443A JP2003527495A (en) 2000-01-18 2001-01-16 Method and apparatus for bonding fleece manufactured by airlay method
DE50105700T DE50105700D1 (en) 2000-01-18 2001-01-16 METHOD AND DEVICE FOR FASTENING A FLEECE MADE ACCORDING TO THE AIR ASSEMBLY METHOD
PCT/EP2001/000406 WO2001053589A1 (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
BR0107670-1A BR0107670A (en) 2000-01-18 2001-01-16 Process and device for the stiffening of a fleece produced according to the air application process
AT01907450T ATE291656T1 (en) 2000-01-18 2001-01-16 METHOD AND DEVICE FOR CONSOLIDATING A FLEECE PRODUCED BY THE AIR-LAYING METHOD
EP01907450A EP1294971B1 (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
US10/169,909 US20030101556A1 (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
EA200200773A EA003594B1 (en) 2000-01-18 2001-01-16 Method, device and multiple-layer non-woven fibre for bonding non-woven fibre produced by the air-lay method
ES01907450T ES2239125T3 (en) 2000-01-18 2001-01-16 PROCEDURE, DEVICE, AND COMPOSITE VELO FOR REINFORCEMENT OF ANOTHER VEIL PREPARED BY THE AIR DEPOSITION PROCEDURE.
CA002396976A CA2396976A1 (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
CN01803853A CN1395636A (en) 2000-01-18 2001-01-16 Method and device for bonding non-woven fibre produced by air-lay method
IL15072001A IL150720A0 (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
KR1020027008980A KR20020071936A (en) 2000-01-18 2001-01-16 Method and device for bonding a non-woven fibre produced by the air-lay method
DK01907450T DK1294971T3 (en) 2000-01-18 2001-01-16 Method and device for stabilizing a nonwoven fabric made by the aerodynamic method
IL150720A IL150720A (en) 2000-01-18 2002-07-11 Method and device for bonding a non-woven fibre produced by the air-lay method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10001957A DE10001957A1 (en) 2000-01-18 2000-01-18 Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching

Publications (1)

Publication Number Publication Date
DE10001957A1 true DE10001957A1 (en) 2001-07-19

Family

ID=7627904

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10001957A Withdrawn DE10001957A1 (en) 2000-01-18 2000-01-18 Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching
DE50105700T Revoked DE50105700D1 (en) 2000-01-18 2001-01-16 METHOD AND DEVICE FOR FASTENING A FLEECE MADE ACCORDING TO THE AIR ASSEMBLY METHOD

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE50105700T Revoked DE50105700D1 (en) 2000-01-18 2001-01-16 METHOD AND DEVICE FOR FASTENING A FLEECE MADE ACCORDING TO THE AIR ASSEMBLY METHOD

Country Status (13)

Country Link
US (1) US20030101556A1 (en)
EP (1) EP1294971B1 (en)
JP (1) JP2003527495A (en)
KR (1) KR20020071936A (en)
CN (1) CN1395636A (en)
AT (1) ATE291656T1 (en)
BR (1) BR0107670A (en)
CA (1) CA2396976A1 (en)
DE (2) DE10001957A1 (en)
EA (1) EA003594B1 (en)
ES (1) ES2239125T3 (en)
IL (2) IL150720A0 (en)
WO (1) WO2001053589A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992338A3 (en) * 1998-10-09 2002-01-09 Fort James Corporation Hydroentangled three ply webs and products made therefrom
US7416638B2 (en) 2003-11-18 2008-08-26 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
CN106012295A (en) * 2016-08-03 2016-10-12 江苏盛纺纳米材料科技股份有限公司 Nano-fibre hot air hydrophilic non-woven material and preparation method
EP4202098A1 (en) * 2021-12-27 2023-06-28 Nitto Advanced Nonwoven Ascania GmbH Method of manufacturing a nonwoven element for sanitary articles

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008746A1 (en) * 2000-02-24 2001-08-30 Fleissner Maschf Gmbh Co Method and device for producing composite nonwovens by means of hydrodynamic needling
GB0013302D0 (en) * 2000-06-02 2000-07-26 B & H Res Ltd Formation of sheet material using hydroentanglement
GB0128692D0 (en) * 2001-11-30 2002-01-23 B & H Res Ltd Formation of sheet material using hydroentanglement
EP1325981A1 (en) * 2002-01-05 2003-07-09 The Procter & Gamble Company Multiply tissue towel with super absorbent fibres
EP1327716B1 (en) * 2002-01-05 2006-10-25 The Procter & Gamble Company Multiply tissue product
FR2838457B1 (en) * 2002-04-12 2004-08-27 Rieter Perfojet DRUM FOR INSTALLATION FOR PRODUCING A NON-WOVEN TABLECLOTH, METHOD FOR PRODUCING A NON-WOVEN TABLECLOTH, AND NON-WOVEN TABLECLOTH OBTAINED
US7367093B2 (en) * 2002-07-05 2008-05-06 Fleissner Gmbh Method for producing a nonwoven material by hydrodynamic needling
TW201420054A (en) * 2012-11-21 2014-06-01 Kang Na Hsiung Entpr Co Ltd Hygroscopic non-woven fabric and fabricating method thereof
EP3476988A4 (en) * 2016-06-22 2019-07-17 Toray Industries, Inc. Production method for partially separated fiber bundle, partially separated fiber bundle, fiber-reinforced resin molding material using partially separated fiber bundle, and production method for fiber-reinforced resin molding material using partially separated fiber bundle
US10415166B2 (en) * 2017-05-15 2019-09-17 Jacob Holm & Sons Ag Hydroentangled airlaid process and industrial wipe products
CN113004863A (en) * 2021-01-25 2021-06-22 义乌壹统胶科技有限公司 Green plate adhesive and manufacturing device thereof

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640810A (en) * 1984-06-12 1987-02-03 Scan Web Of North America, Inc. System for producing an air laid web
US4808467A (en) * 1987-09-15 1989-02-28 James River Corporation Of Virginia High strength hydroentangled nonwoven fabric
US4894280A (en) * 1987-12-21 1990-01-16 Kimberly-Clark Corporation Flexible, tear resistant composite sheet material and a method for producing the same
US4931355A (en) * 1988-03-18 1990-06-05 Radwanski Fred R Nonwoven fibrous hydraulically entangled non-elastic coform material and method of formation thereof
DE3831496C2 (en) * 1988-09-16 2001-03-22 Fleissner Maschf Gmbh Co Process for the thermal consolidation of nonwovens with binding powder
FR2667622B1 (en) * 1990-10-08 1994-10-07 Kaysersberg Sa HYDRAULICALLY LINKED MONTISSE AND MANUFACTURING METHOD THEREOF.
SE467499B (en) * 1990-11-19 1992-07-27 Moelnlycke Ab PROCEDURES FOR HYDROENT ANGLING
SE469896B (en) * 1990-11-19 1993-10-04 Moelnlycke Ab Method and apparatus for producing spun lace material and a material thus produced
US5393599A (en) * 1992-01-24 1995-02-28 Fiberweb North America, Inc. Composite nonwoven fabrics
US5240764A (en) * 1992-05-13 1993-08-31 E. I. Du Pont De Nemours And Company Process for making spunlaced nonwoven fabrics
DE4408813C1 (en) * 1994-03-16 1995-10-05 Freudenberg Carl Fa Process for making a nonwoven composite and interposed nonwoven composite
US5413849A (en) * 1994-06-07 1995-05-09 Fiberweb North America, Inc. Composite elastic nonwoven fabric
US5798305A (en) * 1994-07-04 1998-08-25 Chisso Corporation Hot-melt-adhesive conjugate fibers and a non-woven fabric using the fibers
MY116007A (en) * 1994-12-28 2003-10-31 Kao Corp Absorbent sheet, process for producing the same and absorbent article
EP0886698A1 (en) * 1996-02-12 1998-12-30 Scan-Web I/S An absorbent sheet or web material and a method of producing the material by dry forming
US5874159A (en) * 1996-05-03 1999-02-23 E. I. Du Pont De Nemours And Company Durable spunlaced fabric structures
US5916670A (en) * 1997-01-17 1999-06-29 Rayonier Inc. Absorbent material for use in absorbent articles
EP0896080B1 (en) * 1997-08-06 2003-09-10 Fleissner GmbH & Co. Maschinenfabrik Process of making a voluminous nonwoven composite fabric, fabric and apparatus for manufacturing the fabric accordingly
US6314627B1 (en) * 1998-06-30 2001-11-13 Polymer Group, Inc. Hydroentangled fabric having structured surfaces

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992338A3 (en) * 1998-10-09 2002-01-09 Fort James Corporation Hydroentangled three ply webs and products made therefrom
US7416638B2 (en) 2003-11-18 2008-08-26 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
US7578902B2 (en) 2003-11-18 2009-08-25 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
US7862690B2 (en) 2003-11-18 2011-01-04 Georgia-Pacific Consumer Products Lp Apparatus and method for manufacturing a multi-layer web product
CN106012295A (en) * 2016-08-03 2016-10-12 江苏盛纺纳米材料科技股份有限公司 Nano-fibre hot air hydrophilic non-woven material and preparation method
EP4202098A1 (en) * 2021-12-27 2023-06-28 Nitto Advanced Nonwoven Ascania GmbH Method of manufacturing a nonwoven element for sanitary articles

Also Published As

Publication number Publication date
ATE291656T1 (en) 2005-04-15
EP1294971B1 (en) 2005-03-23
CA2396976A1 (en) 2001-07-26
WO2001053589A1 (en) 2001-07-26
JP2003527495A (en) 2003-09-16
CN1395636A (en) 2003-02-05
IL150720A (en) 2007-07-04
DE50105700D1 (en) 2005-04-28
EA200200773A1 (en) 2003-02-27
BR0107670A (en) 2002-10-08
EP1294971A1 (en) 2003-03-26
IL150720A0 (en) 2003-02-12
US20030101556A1 (en) 2003-06-05
KR20020071936A (en) 2002-09-13
ES2239125T3 (en) 2005-09-16
EA003594B1 (en) 2003-06-26

Similar Documents

Publication Publication Date Title
EP1210474B1 (en) Method and device for producing a composite nonwoven for receiving and storing liquids
EP1250482B2 (en) Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling
EP1266058B1 (en) Method and device for producing composite nonwovens by means of hydrodynamic needling
DE60300540T2 (en) Apparatus for producing a patterned textile product and nonwoven fabric made therefrom
EP1524350B2 (en) Fiber laminates and methods for producing them
DE10001957A1 (en) Air laying non-wovens with melt adhesive fiber outer and cellulose inner layers includes bonding of all three layers by water jet needle punching
EP1092054B1 (en) Method for producing a non-woven fibre fabric
EP1748101A2 (en) Bulky fibrous laminate and its making
EP0751249B1 (en) Method and apparatus for consolidating a fibrous fleece
EP0719887B1 (en) Method and apparatus for the finishing of carded webs
EP1934039B1 (en) Stable fiber laminate, and method and device for the production thereof
EP0453877B1 (en) Process for the production of multifunctional lining elements
EP0896080B1 (en) Process of making a voluminous nonwoven composite fabric, fabric and apparatus for manufacturing the fabric accordingly
EP0227914A1 (en) Cotton swab and process for its production
DE10004448A1 (en) Making composite non-woven, e.g. for sanitary products, involves calendering a support layer, applying a wood pulp layer and needle punching with water jets
DE4114839A1 (en) Nonwoven microfibre for lamination to give textile character - has a component in fibres which is tacky through heat and reactivated by further heat for adhesive bonding to a substrate
DE102006037111A1 (en) Process to manufacture cleaning cloth with two layers of non-woven fibers sandwiching inner layer joined by enhanced temperature and pressure
EP0727517B1 (en) Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof
DE2212352C3 (en) Process for heat setting and consolidating nonwovens
EP1658970B1 (en) Laminate having at least three layers and process for producing the same
DE19608647C1 (en) Light fleecy insulating board is made from low strength stacked webs
DE60302661T2 (en) NONWOVEN FABRIC WITH PARTIALLY CONNECTED LAYERS AND METHOD AND DEVICE FOR PRODUCING THEM
WO2012163317A1 (en) Method for producing a composite, and composite
DE2212352B2 (en) PROCESS FOR HOT FIXING AND CONSOLIDATING FLEECE
DE10256138A1 (en) Process for hydrodynamically enclosing a variety of finite, three-dimensional products with water jets

Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: FLEISSNER GMBH, 63329 EGELSBACH, DE

8139 Disposal/non-payment of the annual fee