EP0727517B1 - Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof - Google Patents
Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof Download PDFInfo
- Publication number
- EP0727517B1 EP0727517B1 EP19960100302 EP96100302A EP0727517B1 EP 0727517 B1 EP0727517 B1 EP 0727517B1 EP 19960100302 EP19960100302 EP 19960100302 EP 96100302 A EP96100302 A EP 96100302A EP 0727517 B1 EP0727517 B1 EP 0727517B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibres
- fibrous material
- woven
- woven fibrous
- strengthened
- 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
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
- D04H1/492—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
- 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
- D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
Definitions
- the invention relates to a method for consolidating a nonwoven fabric artificial staple fibers, such as polyester, polyethylene or polypropylene fibers and / or also from such continuous fibers, and / or natural fibers, which have a thickness of 10 mm and more from pure chemical fibers without binding fibers, such as bicomponent or special melt fibers, and is manufactured without binders.
- a nonwoven fabric artificial staple fibers such as polyester, polyethylene or polypropylene fibers and / or also from such continuous fibers, and / or natural fibers, which have a thickness of 10 mm and more from pure chemical fibers without binding fibers, such as bicomponent or special melt fibers, and is manufactured without binders.
- Carded fiber nonwovens are made from a wide variety of fibers. All generally they have the advantage that the short fibers in the finished nonwoven mess lie and therefore give the fleece better strength in all tensile directions.
- nonwovens made from continuous fibers that are produced after the fibers immediately to a fleece z. B. stored on an endless belt.
- spunbonded nonwovens have to be of satisfactory strength in practice be connected to each other.
- thin nonwovens cannot be needled mechanically at all.
- the nonwoven fibers have lower melting synthetic fibers such as also to mix bicomponent fibers, which at least then by the action of heat be melted down so that they bond with the neighboring fibers of the fleece glue.
- the expensive binding fibers and the additional energy required disadvantageous when heated up to the melting temperature of the binding fibers.
- EP-A-0 321237 which is a wet-laid nonwoven fabric discloses that is also needled water for solidification. What to achieve Nonwoven should not be voluminous, but should be consolidated flat, and at the same time high Have interlayer adhesive strength. The recital further states that the previously known dry-laid nonwovens are hot pressed for consolidation, what brings sufficient surface consolidation, but not that there desired transverse strength. The document also goes to "spunlaced" nonwovens without adhesives, which are also solidified by water needling. The document states that this type of fleece does not solidify sufficiently and are disadvantageous compared to the wet-strengthened nonwovens.
- the invention has for its object a method for producing a solidified to develop voluminous fleece, such as carded fiber or staple fiber fleece, in which no additional binding chemicals or binding fibers are used for solidification are necessary and yet the required strength even with this voluminous Fleece is achieved.
- voluminous fleece such as carded fiber or staple fiber fleece
- a nonwoven made of fibers having a titer between 1-15 den and weighing up to 200 g / m 2 produced and solidified by means of a single needling of water alone, solidified over the surface with only a water pressure of up to at most 60 bar, preferably 20-30 bar, and then it has a density of up to 0.05 g / cm 3 .
- This water needled, voluminous fleece is also a product of this invention. This also applies to the use according to the invention. It's going on referred to the claims.
- This method of making a consolidated voluminous nonwoven is first only applied to one side of the fleece.
- the back (support side) has a different surface structure after the hardening treatment. Should both Sides should be structured and surface treated the same way to feed the other side of the fleece to another water needling machine. However, this has to do with the basic single treatment procedure None to do. A different product is required for double-sided needling, the but also falls under the scope of protection of the patent.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Filtering Materials (AREA)
- Multicomponent Fibers (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren zur Verfestigung eines Faservlieses aus künstlichen Stapelfasern, wie Polyester- Polyethylen- oder Polypropylenfasern und/oder auch aus solchen Endlosfasern, und/oder Naturfasern, das in einer Dicke von 10 mm und mehr aus reinen Chemiefasern ohne Bindefasern, wie Bikomponenten- oder speziellen Schmelzfasern, und ohne Bindemitteln hergestellt wird.The invention relates to a method for consolidating a nonwoven fabric artificial staple fibers, such as polyester, polyethylene or polypropylene fibers and / or also from such continuous fibers, and / or natural fibers, which have a thickness of 10 mm and more from pure chemical fibers without binding fibers, such as bicomponent or special melt fibers, and is manufactured without binders.
Krempelfaservliese werden aus Fasern der unterschiedlichsten Art hergestellt. Ganz allgemein haben sie den Vorteil, daß die Kurzfasern im fertigen Vlies wirr durcheinander liegen und deshalb dem Vlies eine bessere Festigkeit in allen Zugrichtungen verleihen. Daneben gibt es Vliese aus Endlosfasern, die nach der Herstellung der Fasern unmittelbar zu einem Vlies z. B. auf ein Endlosband abgelegt werden. Die im von der Krempelmaschine gelieferten Vlies locker verlegten Fasern und auch die eines Spinnvlieses müssen aber zur Herstellung einer in der Praxis befriedigenden Festigkeit miteinander verbunden werden. Dazu ist es bekannt, das Vlies mechanisch zu vernadeln. Durch diesen im Grunde diskontinuierlichen und damit langsamen Verfestigungsvorgang wird das Volumen aber wesentlich vermindert, so daß ein solches mechanisch verfestigtes Nadelvlies für so manche Verwendungsmöglichkeiten nicht brauchbar ist. Außerdem sind dünne Vliese mechanisch gar nicht zu vernadeln.Carded fiber nonwovens are made from a wide variety of fibers. All generally they have the advantage that the short fibers in the finished nonwoven mess lie and therefore give the fleece better strength in all tensile directions. In addition, there are nonwovens made from continuous fibers that are produced after the fibers immediately to a fleece z. B. stored on an endless belt. The im of the Carding machine supplied fleece loosely laid fibers and also one However, spunbonded nonwovens have to be of satisfactory strength in practice be connected to each other. For this purpose, it is known to mechanically needle the fleece. Through this basically discontinuous and therefore slow hardening process but the volume is significantly reduced, so that such a mechanical Consolidated needle fleece is not usable for so many uses. In addition, thin nonwovens cannot be needled mechanically at all.
Es ist weiterhin bekannt, den Fasern Bindemittel beizugeben, z. B. flüssig durch Aufsprühen oder mittels Schaumimprägnierung. Der Nachteil eines solchen Vlieses ist nicht nur die zusätzlich notwendige teure Chemikalie, die nur mit einer gewissen Umweltbelastung hergestellt werden kann, sondern auch die schlechtere Recyclefähigkeit. It is also known to add binders to the fibers, e.g. B. liquid by spraying or by means of foam impregnation. The disadvantage of such a fleece is not just the additionally required expensive chemical, which only has a certain environmental impact can be produced, but also the poorer recyclability.
Weiterhin ist es bekannt, den Vliesen Fasern niedriger schmelzende Chemiefasern wie auch Bikomponentenfasern beizumischen, die dann durch Wärmeeinwirkung zumindest angeschmolzen werden, damit sie mit den benachbarten Fasern des Vlieses verkleben. Hierbei sind die teuren Bindefasern und der zusätzlich notwendige Energieaufwand beim Erhitzen bis auf die Schmelztemperatur der Bindefasern von Nachteil.Furthermore, it is known that the nonwoven fibers have lower melting synthetic fibers such as also to mix bicomponent fibers, which at least then by the action of heat be melted down so that they bond with the neighboring fibers of the fleece glue. Here are the expensive binding fibers and the additional energy required disadvantageous when heated up to the melting temperature of the binding fibers.
Es ist auch bekannt, die Vliese der genannten Art mittels Wasser zu vernadeln. Die Wasservernadelung hat grundsätzlich den Vorteil, daß es kontinuierlich erfolgt, also höhere Produktionsgeschwindigkeiten möglich sind. Nachteilig sind jedoch die bei der Wasservernadelung entstehenden brettigen, papierähnlichen Produkte.It is also known to needled the nonwovens of the type mentioned by means of water. The Basically, water needling has the advantage that it takes place continuously, that is higher production speeds are possible. However, the disadvantage of the Watery needling produced boardy, paper-like products.
Dazu ist z. B. die US-A-4 868 958 zu nennen. In diesem Dokument ist zusätzlich eine besondere Konstruktion einer Wasservernadelungstrommel offenbart mit der die von außen auf die Warenbahn gespritzten Wasserstrahlen an der das Siebblech tragenden Konstruktion reflektieren sollen, um auch von unten her eine Verbesserung der Verfestigung der Warenbahn zu erzielen. Eine solche Wasserstrahlverfestigung muß eine Verfestigung quer durch das Vlies zur Folge haben, denn sonst können die Wasserstrahlen nicht noch zusätzlich aufgrund der ihnen noch innewohnenden Energie reflektiert werden. Dort werden aber nur Vliese mit einem Gewicht von vorzugsweise 100, besser 30 g/m2 vernadelt, wozu die Vernadelung ggf. auch nur einmal und mit einem Wasserdruck von 20 - 100 bar erfolgen kann. Es wir dort keine Aussage darüber gemacht, daß mit dieser dort offenbarten Trommel ein voluminöses Vlies ohne Bindemittel erzielbar ist. Außerdem ist auch hier nicht von einem Vlies von bis zu 10 mm Dicke die Rede.For this purpose, e.g. For example, mention US-A-4,868,958. In this document, a special construction of a water needling drum is additionally disclosed, with which the water jets sprayed onto the web from the outside should reflect on the construction carrying the screen plate, in order to also improve the solidification of the web from below. Such a water jet consolidation must result in a consolidation across the fleece, because otherwise the water jets cannot be additionally reflected due to the energy inherent in them. There, however, only nonwovens with a weight of preferably 100, more preferably 30 g / m 2 are needled, for which purpose the needling can also be carried out only once and with a water pressure of 20-100 bar. There is no statement made there that a voluminous nonwoven without binders can be achieved with the drum disclosed there. In addition, there is no question of a fleece up to 10 mm thick.
Weiterhin ist noch die EP-A-0 321237 zu nennen, die ein naß gelegtes Faservlies offenbart, das zur Verfestigung ebenfalls wasservernadelt wird. Das zu erzielende Vlies soll aber nicht voluminös, sondern flach verfestigt sein, und dabei eine hohe Zwischenschicht-Haftfestigkeit haben. Die Schrift führt dazu weiter aus, daß die vorbekannten trocken gelegten Vliese zur Verfestigung heiß verpreßt werden, was zwar eine ausreichende Oberflächenverfestigung bringt, aber nicht die dort gewünschte Querfestigkeit. Im weiteren geht das Dokument auch auf "Spunlaced"-Vliesstoffe ohne Klebstoffe ein, die auch durch Wasservernadelung verfestigt werden. Im Dokument wird dazu ausgesagt, daß diese Art von Vliese ungenügend verfestigt seien und gegenüber den naß verfestigten Vliesen nachteilig sind. Also to be mentioned is EP-A-0 321237, which is a wet-laid nonwoven fabric discloses that is also needled water for solidification. What to achieve Nonwoven should not be voluminous, but should be consolidated flat, and at the same time high Have interlayer adhesive strength. The Scripture further states that the previously known dry-laid nonwovens are hot pressed for consolidation, what brings sufficient surface consolidation, but not that there desired transverse strength. The document also goes to "spunlaced" nonwovens without adhesives, which are also solidified by water needling. The document states that this type of fleece does not solidify sufficiently and are disadvantageous compared to the wet-strengthened nonwovens.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines verfestigten voluminösen Vlieses, wie Krempelfaser- oder Spinnfaservlies, zu entwickeln, bei dem zur Verfestigung keine zusätzlichen Bindechemikalien oder Bindefasern notwendig sind und dennoch die erforderliche Festigkeit auch bei diesem voluminösen Vlies erzielt wird.The invention has for its object a method for producing a solidified to develop voluminous fleece, such as carded fiber or staple fiber fleece, in which no additional binding chemicals or binding fibers are used for solidification are necessary and yet the required strength even with this voluminous Fleece is achieved.
Ausgehend von dem Verfahren anfangs genannter Art, wird die Lösung dieser Aufgabe darin gesehen, daß zur Erzielung eines voluminösen, aber dennoch quer verfestigten Faservlieses ein Vlies aus Fasern mit einem Titer zwischen 1 - 15 den und mit einem Gewicht von bis zu 200 g/m2 hergestellt und allein mittels einer einmaligen Wasservernadelung gleichmäßig beaufschlagt über die Oberfläche mit nur einem Wasserdruck von bis zu höchstens 60 bar, vorzugsweise 20 - 30 bar, verfestigt wird, und es dann eine Dichte von bis zu 0,05 g/cm3 aufweist.Starting from the method mentioned at the beginning, the solution to this problem is seen in the fact that in order to achieve a voluminous but nevertheless cross-bonded nonwoven, a nonwoven made of fibers having a titer between 1-15 den and weighing up to 200 g / m 2 produced and solidified by means of a single needling of water alone, solidified over the surface with only a water pressure of up to at most 60 bar, preferably 20-30 bar, and then it has a density of up to 0.05 g / cm 3 .
Es hat sich überraschend gezeigt, daß ein solches Vlies - so wie es von der Krempel oder von den Spinnbalken nach Ablage geliefert wird - zwar beim Wasservernadeln mit diesem Wasserdruck an Volumen verliert, aber nur unbedeutend wenig. Jedenfalls verfilzen die Fasern durch das Auftreffen der Wasserstrahlen mit dem geringen Wasserdruck derart, daß ein ausreichend verfestigtes Vlies von der nur einen Wasservernadelungsmaschine geliefert wird, um industriell verwendet werden zu können. Dabei kann es von Vorteil sein, wenn vor der eigentlichen Wasservernadelung, das Vlies mit Wasser zur Befeuchtung unter Druck beblasen wird. Die Feuchtigkeit kann anschließend leicht aus dem Vlies abgesaugt und evtl. auch durch Wärme entfernt werden. Wegen des großen Volumens ist nur wenig Energie zur Herstellung des trockenen Vlieses notwendig.It has surprisingly been shown that such a fleece - as it is from the clutter or is delivered from the spinning beam after storage - with the needling of water this water pressure loses volume, but only insignificantly little. In any case matting the fibers by the impact of the water jets with the low Water pressure such that a sufficiently solidified fleece of only one Water needling machine is supplied to be used industrially can. It can be an advantage if before the actual Water needling, the fleece is blown with water for moistening under pressure. The moisture can then easily be sucked out of the fleece and possibly also be removed by heat. Because of the large volume, there is only little energy available Production of the dry fleece necessary.
Dieses wasservernadelte, voluminöse Vlies ist als Produkt ebenfalls Gegenstand dieser Erfindung. Dies gilt auch für die erfindungsgemäße Verwendung. Es wird auf die Patentansprüche verwiesen.This water needled, voluminous fleece is also a product of this invention. This also applies to the use according to the invention. It's going on referred to the claims.
Dieses Verfahren zur Herstellung eines verfestigten voluminösen Vlieses ist zunächst nur auf die eine Seite des Vlieses angewendet. Die Rückseite (Unterstützungsseite) hat nach der Verfestigungsbehandlung eine andere Oberflächenstruktur. Sollen beide Seiten gleich strukturiert und oberflächenbehandelt sein, so ist selbstverständlich auch die andere Seite des Vlieses einer weiteren Wasservernadelungsmaschine zuzuführen. Dies hat aber mit dem grundsätzlichen Verfahren der einmaligen Behandlung nichts zu tun. Beim beidseitigen Vernadeln wird ein anderes Produkt gewünscht, das aber auch unter den Schutzumfang des Patents fällt.This method of making a consolidated voluminous nonwoven is first only applied to one side of the fleece. The back (support side) has a different surface structure after the hardening treatment. Should both Sides should be structured and surface treated the same way to feed the other side of the fleece to another water needling machine. However, this has to do with the basic single treatment procedure Nothing to do. A different product is required for double-sided needling, the but also falls under the scope of protection of the patent.
Claims (9)
- Method of strengthening a non-woven fibrous material formed from artificial staple fibres, such as polyester, polyethylene or polypropylene fibres, and/or from such endless fibres, and/or natural fibres, which material is produced in a thickness of 10 mm and more without bonding fibres, such as bi-component or special fusion fibres, and without bonding agents, characterised in that, to achieve a voluminous, yet transversely strengthened non-woven fibrous material, a non-woven material is produced from fibres having a titre between 1 - 15 den and having a weight of up to 200 g/m2 and strengthened solely by means of a single hydraulic needle-punching operation uniformly effected over the surface with only a hydraulic pressure of up to 60 bar at most, preferably 20 - 30 bar, and it then has a density of up to 0.05 g/cm3.
- Method according to claim 1, characterised in that this type of hydraulic needle-punching operation to achieve a surface structure of the non-woven material, which structure is identical on both sides, is effected twice, that is to say in succession even on the rear side of the non-woven material.
- Non-woven fibrous material formed from artificial staple fibres, such as polyester, polyethylene or polypropylene fibres, and/or from such endless fibres, and/or natural fibres, which material is produced with a weight of up to 200 g/m2 in a thickness of 10 mm and more from pure chemical fibres having a titre greater than 5 den without bonding fibres, such as bi-component or special fusion fibres, and without bonding agents and is strengthened by means of a single hydraulic needle-punching operational process on one or both sides with only a hydraulic pressure of up to 60 bar at most, preferably 20 - 30 bar, to achieve a voluminous non-woven material, and it then has a density of up to 0.05 g/cm3.
- Non-woven fibrous material according to claim 3 and the fibres of which, when staple fibres are used, have a staple length of 36 - 75 mm or longer.
- Non-woven fibrous material according to claim 3 or 4 and which has a density of 0.01 - 0.03 g/cm3.
- Non-woven fibrous material according to claims 3 to 5 and which has a resistance to tearing/tensile strength of 5 - 100 N/5 cm, preferably 10 - 50 N/5 cm.
- Use of the non-woven fibrous material, which is strengthened in accordance with the type of manufacture according to claim 1 or 2, as a capillary layer in the hygiene or sanitary sector.
- Use of the non-woven fibrous material, which is strengthened in accordance with the type of manufacture according to claim 1 or 2, as a filter product.
- Use of the non-woven fibrous material, which is strengthened in accordance with the type of manufacture according to claim 1 or 2, as padding in the clothes industry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19500669 | 1995-01-12 | ||
| DE19500669A DE19500669A1 (en) | 1994-12-22 | 1995-01-12 | Consolidating fibre web made of synthetic staple fibres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0727517A1 EP0727517A1 (en) | 1996-08-21 |
| EP0727517B1 true EP0727517B1 (en) | 2000-04-12 |
Family
ID=7751311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19960100302 Expired - Lifetime EP0727517B1 (en) | 1995-01-12 | 1996-01-11 | Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0727517B1 (en) |
| JP (1) | JPH08232147A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116901554B (en) * | 2023-07-01 | 2024-03-19 | 广东一农新材料科技有限公司 | Composite moisturizing cloth and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663165B2 (en) * | 1985-11-20 | 1994-08-17 | ユニ・チヤ−ム株式会社 | Nonwoven fabric manufacturing method and apparatus |
| US4891262A (en) * | 1987-12-16 | 1990-01-02 | Asahi Kasei Kogyo Kabushiki Kaisha | High strength wet-laid nonwoven fabric and process for producing same |
| US4970104A (en) * | 1988-03-18 | 1990-11-13 | Kimberly-Clark Corporation | Nonwoven material subjected to hydraulic jet treatment in spots |
| US5238644A (en) * | 1990-07-26 | 1993-08-24 | Johnson & Johnson Inc. | Low fluid pressure dual-sided fiber entanglement method, apparatus and resulting product |
-
1996
- 1996-01-11 JP JP8003132A patent/JPH08232147A/en active Pending
- 1996-01-11 EP EP19960100302 patent/EP0727517B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08232147A (en) | 1996-09-10 |
| EP0727517A1 (en) | 1996-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1210474B1 (en) | Method and device for producing a composite nonwoven for receiving and storing liquids | |
| EP1250482B1 (en) | Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling | |
| DE60030120T2 (en) | METHOD FOR THE PRODUCTION OF A NONWOVEN MATERIAL, APPARATUS FOR CARRYING OUT THIS METHOD, NONWOVEN MATERIAL MANUFACTURED | |
| DE69938197T2 (en) | NONWORK OF HIGH STRENGTH AND METHOD FOR THE PRODUCTION THEREOF | |
| DE60300540T2 (en) | Apparatus for producing a patterned textile product and nonwoven fabric made therefrom | |
| DE3586931T2 (en) | NON-WOVEN BRAIDED FABRIC WITH SURFACE-CONTAINING THERMOPLASTIC FIBERS AND METHOD FOR THE PRODUCTION THEREOF. | |
| DE60103753T2 (en) | FUSSEL FREE THICKER AND SOFT NONWOVEN | |
| EP1092054B1 (en) | Method for producing a non-woven fibre fabric | |
| EP1748101A2 (en) | Bulky fibrous laminate and its making | |
| EP1266058A1 (en) | Method and device for producing composite nonwovens by means of hydrodynamic needling | |
| DE102005028627B3 (en) | Thermoformed supporting component, e.g. automobile roof rack, comprises core layer of glass and thermoplastic fibers, covering non-woven layer(s) containing melt adhesive fibers | |
| EP0751249B1 (en) | Method and apparatus for consolidating a fibrous fleece | |
| EP1294971B1 (en) | Method and device for bonding a non-woven fibre produced by the air-lay method | |
| EP0719887A2 (en) | Method and process for the finishing of carded webs | |
| EP0727517B1 (en) | Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof | |
| DE2259203A1 (en) | Converting thermoplastic fleeces into continuous sheet - by ultrasonically bonding and partially welding | |
| DE19500669A1 (en) | Consolidating fibre web made of synthetic staple fibres | |
| EP1934039A1 (en) | Stable fiber laminate, and method and device for the production thereof | |
| EP1392905B1 (en) | Method for consolidating a material web made from wood pulp | |
| 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 | |
| DE10345953B4 (en) | Nonwoven fabric and process for its production | |
| WO2002068744A2 (en) | Water-needled, composite nonwoven consisting of staple fibres and continuous filaments and method for producing the same | |
| DE102021132077A1 (en) | Plant and method for producing a single or multi-layer fleece | |
| DE60302661T2 (en) | NONWOVEN FABRIC WITH PARTIALLY CONNECTED LAYERS AND METHOD AND DEVICE FOR PRODUCING THEM | |
| DE2212352C3 (en) | Process for heat setting and consolidating nonwovens |
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 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19960827 |
|
| 17Q | First examination report despatched |
Effective date: 19971120 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| ITF | It: translation for a ep patent filed |
Owner name: BARZANO' E ZANARDO ROMA S.P.A. |
|
| REF | Corresponds to: |
Ref document number: 59604929 Country of ref document: DE Date of ref document: 20000518 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000710 |
|
| ET | Fr: translation filed | ||
| 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 |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080109 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090211 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090127 Year of fee payment: 14 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090111 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090119 Year of fee payment: 14 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20090111 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100930 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100803 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100111 |