DE4130343A1 - Nonwoven fabric for plant protection in open land - has fibrous webs previous to air and water and interposed bonded network of equal or stronger texture - Google Patents

Nonwoven fabric for plant protection in open land - has fibrous webs previous to air and water and interposed bonded network of equal or stronger texture

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Publication number
DE4130343A1
DE4130343A1 DE4130343A DE4130343A DE4130343A1 DE 4130343 A1 DE4130343 A1 DE 4130343A1 DE 4130343 A DE4130343 A DE 4130343A DE 4130343 A DE4130343 A DE 4130343A DE 4130343 A1 DE4130343 A1 DE 4130343A1
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DE
Germany
Prior art keywords
nonwoven material
composite nonwoven
individual components
material according
scrim
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE4130343A
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German (de)
Other versions
DE4130343C2 (en
Inventor
Erhard Neuhaus
Reiner Dr Thiele
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Corovin GmbH
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Corovin GmbH
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Publication date
Application filed by Corovin GmbH filed Critical Corovin GmbH
Priority to DE4130343A priority Critical patent/DE4130343C2/en
Publication of DE4130343A1 publication Critical patent/DE4130343A1/en
Application granted granted Critical
Publication of DE4130343C2 publication Critical patent/DE4130343C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/70—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
    • D06M15/705—Embossing; Calendering; Pressing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/16—Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/188—Woven fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/38—Meshes, lattices or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2410/00—Agriculture-related articles

Abstract

Fabric has an upper and lower fibrous web, which is pervious to air and water. In between the two layers of web is bonded a network of equal or stronger texture. The nonwoven fabric is pref. a web of staple fibre (12,14) from rolls (22,24), and it may contain thermosetting plastic, or have adhesive applied during construction, which fixes the web to the cross sections of the rectangular net (16) from the roll (26). This is made of material which is as strong, or stronger than the web. It may be polythene, polyester or polypropylene. These are then pressed between the rollers (30,32), which may have some form of heat treatment, and the fabric (10) is then rolled up. The size of the square of the net determines the size of cloche for each plant. USE/ADVANTAGE - The fabric provides plant protection in open land, for horticultural work. It is not necessary to remove and refix the protective cover, as the fabric allows water to percolate, and air to circulate.

Description

Die Erfindung betrifft ein Verbundvliesmaterial sowie ein Verfahren zur Herstellung eines Verbundvliesmaterials.The invention relates to a composite nonwoven material and a Process for producing a composite nonwoven material.

Im Bereich der Landwirtschaft und auch des Gartenbaus werden bekanntlich Folien verwendet, um ein Mikroklima mit Treibhauseffekt zu erzielen. Zu diesem Zweck werden die Folien über als Träger dienende Rundbögen über die betreffende zu nutzende Agrarfläche oder Gartenerde gespannt, so daß durch die Folie eine Abdeckung gebildet wird. Unterhalb dieser Abdeckung entsteht dann das gewünschte Mikroklima mit Treibhauseffekt, wodurch das Wachstum von Pflanzen oder dergleichen gefördert wird.In the field of agriculture and horticulture foils are known to be used to create a microclimate to achieve with greenhouse effect. For this purpose the foils over round arches serving as supports over the relevant agricultural area or garden soil to be used stretched so that a cover is formed by the film becomes. This is then created below this cover desired microclimate with greenhouse effect, which makes Growth of plants or the like is promoted.

Der Verwendung der bekannten Folien,die üblicherweise aus Polyethylen bestehen, haften in der Praxis allerdings Nachteile an. So sind die Folien trotz einer vorgesehenen Perforierung in Form von kleinen Löchern nicht in der Lage, hinreichend Regenwasser durchzulassen. Der Anwender ist daher gezwungen, die Folie bei Regen während der Dauer des Regens zu entfernen und anschließend wieder anzubringen.The use of the known films, which are usually made of Polyethylene exist, but stick in practice  Disadvantages. So the slides are provided despite one Perforation in the form of small holes not in the Able to let sufficient rain water through. The user is therefore forced to remove the film during the rain Remove duration of rain and then again to attach.

Ein weiterer Nachteil besteht darin, daß die Folie keine hinreichende Belüftung gewährleistet so daß auch für diesen Zweck zusätzliche Maßnahmen erforderlich sind. Üblicherweise wird die Folie an den beiden unteren Seiten zu bestimmten Zeiten teilweise aufgerollt und entfernt, so daß für den durch die Folie abgedeckten Raum ein Luftzug entstehen kann und eine Entlüftung erfolgt.Another disadvantage is that the film does not sufficient ventilation ensures that also for additional measures are required for this purpose. The film is usually on the two lower sides partially rolled up and removed at certain times, so that for the space covered by the film Drafts can occur and ventilation takes place.

Insgesamt bringt also der Einsatz der bekannten Folien, mit denen nach Art von Gewächshäusern ein Mikroklima mit Treibhauseffekt erzeugt werden soll, zusätzliche Arbeit mit sich. Sie sind zwar in mechanischer Hinsicht durchaus mit der erforderlichen Reißfestigkeit und mit den Zugspannungswerten versehen, um sie über die erwähnten Rundbögen zu spannen, jedoch haften der Folie die Nachteile an, nicht hinreichend wasserdurchlässig und luftdurchlässig zu sein.Overall, the use of the known foils with which a microclimate with the kind of greenhouses Greenhouse effect should be created, additional work with yourself. In mechanical terms, they are quite with the required tensile strength and with the Tension values provided to them above the mentioned Tension round arches, but stick to the film Disadvantages, not sufficiently permeable and to be permeable to air.

Die Erfindung geht von der Überlegung aus, daß es bekanntlich Spinnvliese gibt, welche die Eigenschaften besitzen, sowohl hinreichend wasserdurchlässig als auch luftdurchlässig zu sein. Trotzdem konnten entsprechende Vliesmaterialien bisher nicht zum Einsatz gelangen, weil sie nämlich in mechanischer Hinsicht nicht hinreichend stabil sind, um zur Bildung von Kleingewächshäusern verwendet zu werden. In Folge der fehlenden mechanischen Stabilität besteht die Gefahr, daß das Vliesmaterial beim Spannen über die Rundbögen zerreißt bzw. später auftretenden mechanischen Belastungen durch Wind oder Regen nicht standhält.The invention is based on the consideration that it As is known, there are spunbonded fabrics, which have the properties possess, both sufficiently water permeable as well to be permeable to air. Nevertheless, we were able to Nonwoven materials have not been used so far because it is inadequate in mechanical terms are stable to the formation of small greenhouses to be used. As a result of the lack of mechanical Stability there is a risk that the nonwoven material when Tension over the arches tears or later mechanical loads caused by wind or Rain does not withstand.

Die obigen Überlegungen gelten übrigens neben Spinnvliesen auch für Stapelfaservliese, die gleichfalls hinreichend wasser- und luftdurchlässig sind, denen aber die erforderliche mechanische Stabilität fehlt.Incidentally, the above considerations also apply Spunbonded nonwovens also for staple fiber nonwovens, too are sufficiently permeable to water and air, but to them the required mechanical stability is missing.

Durch die Erfindung wird ein Verbundvliesmaterial geschaffen, welches es erstmals ermöglicht, Vliesmaterialien zur Bildung von Kleingewächshäusern einzusetzen. Dies wird durch ein Verbundvliesmaterial erreicht, welches aus einer oberen und unteren Vliesmaterialschicht mit an sich bekannten wasserdurchlässigen und luftdurchlässigen Eigenschaften besteht, und zwischen denen ein Gelege angeordnet ist, dessen Einzelkomponenten im gegenseitigen Abstand zueinander verlaufen und deren mechanische Zugfestigkeit gleich oder größer der mechanischen Zugfestigkeit der Vliesmaterialschichten ist, und die ferner durch Adhäsive mit den beiden Vliesmaterialschichten verbunden sind.The invention makes a composite nonwoven material created, which makes it possible for the first time Nonwoven materials for the formation of small greenhouses to use. This is due to a composite nonwoven material reached, which consists of an upper and lower Nonwoven material layer with known water-permeable and air-permeable properties  exists, and between which a clutch is arranged, its individual components at a mutual distance to each other and their mechanical tensile strength equal to or greater than the mechanical tensile strength of the Nonwoven material layers is, and further by adhesives are connected to the two layers of nonwoven material.

Der Grundgedanke der Erfindung besteht also darin, die mit den vorteilhaften Eigenschaften der Wasserdurchläßigkeit und Luftdurchläßigkeit behafteten Vliese - Spinnvliese oder auch Stapelfasern - zu einem mehrschichtigen Verbundvliesmaterial zusammenzufassen, welches sandwichartig ein Gelege als mittlere Schicht enthält, wobei dieses Gelege dem Material die bisher fehlende Stabilität gibt. Andererseits wird durch das Gelege, dessen Einzelkomponenten im diskreten Abstand zueinander verlaufen und vorzugsweise eine Kreuzgitterstruktur aufweisen, die Wasser- und Luftdurchlässigkeit nicht beeinflußt. Somit läßt sich das neue Verbundvliesmaterial in vorteilhafter Weise an Stelle der eingangs genannten Folien verwenden.The basic idea of the invention is therefore that with the beneficial properties of Permeability to water and permeability to air Nonwovens - spunbonded or staple fibers - into one summarize multilayer composite nonwoven material, which sandwiches a scrim as a middle layer contains, this scrim the material the previously lack of stability. On the other hand, the Scrim, its individual components at discrete distance run to each other and preferably one Have cross-lattice structure, the water and Air permeability not affected. So that can be new composite nonwoven material in an advantageous manner Use the place of the foils mentioned at the beginning.

Es ist zwar schon vorgeschlagen worden, zur Erhöhung der mechanischen Stabilität eines Vlieses ein Gelege vorzusehen, welches auf einer Seite der Vliesschicht durch Kleben befestigt wird, wodurch ein zweischichtiger Aufbau entsteht. Damit eine sichere Befestigung des Geleges erzielt wird, ist es dabei erforderlich, relativ große Mengen von Kleber zu verwenden. Dies führt dazu, daß sich auch außerhab der Bereiche der Einzelkomponenten des Geleges eine Klebeschicht auf der Vliesschicht bildet, wodurch eine relativ große wirksame Fläche der Vliesschicht für die geforderten Eigenschaften der Wasserdurchlässigkeit und Dampfdurchlässigkeit verloren geht.While it has already been proposed to increase the mechanical stability of a non-woven fabric to be provided on one side of the fleece layer  is attached by gluing, creating a two-layer Construction arises. So that a secure attachment of the Occasionally, it is necessary to be relative use large amounts of glue. This leads to, that also disregard the areas of individual components of the scrim an adhesive layer on the non-woven layer forms, creating a relatively large effective area of the Fleece layer for the required properties of the Water permeability and vapor permeability lost goes.

Nachteilig ist bei diesem Vorschlag ferner, daß die durch das Gelege gebildete Schicht von außen her zugänglich und somit ungeschützt ist und bei Beanspruchung leicht delaminiert.Another disadvantage of this proposal is that the the layer formed layer accessible from the outside and is therefore unprotected and light when used delaminated.

Bei der Erfindung treten diese Nachteile nicht auf, weil ein sandwichartiger dreischichtiger Aufbau vorgesehen wird, wobei das Gelege die mittlere Schicht bildet. Die das Gelege bildenden Einzelkomponenten können dabei mit einem reaktivierbaren Kleber umgeben sein, wobei jedoch keine großen Klebermengen erforderlich sind wie bei einem zweischichtigen Aufbau, da das Gelege auch durch die dritte Vliesschicht sicherer in das gesamte Verbundvliesmaterial eingebettet ist. In the invention, these disadvantages do not occur because a sandwich-like three-layer structure is provided the scrim forms the middle layer. The the individual components forming the scrim can be surrounded by a reactivatable adhesive, however no large amounts of adhesive are required as with one two-layer structure, since the scrim also through the third layer of fleece more secure in the whole Composite nonwoven material is embedded.  

Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Appropriate configurations and advantageous Further developments of the invention result from the Subclaims.

Anhand der in der Zeichnung dargestellten Ausführungsbeispiele wird die Erfindung nachfolgend näher erläutert. Es zeigen:Using the shown in the drawing The invention is described in more detail below explained. Show it:

Fig. 1 eine Draufsicht eines Geleges, Fig. 1 is a plan view of a cross ply,

Fig. 2 und 3 jeweils schematische Querschnitts­ ansichten eines Verbundvliesmaterials, und Fig. 2 and 3 are schematic cross-sectional views of a composite nonwoven material, and

Fig. 4 eine schematische Darstellung eines Verfahrens zur Herstellung eines Verbundvliesmaterials. Fig. 4 is a schematic representation of a method for producing a composite nonwoven material.

Das in Fig. 1 gezeigte Gelege 16 besitzt eine Kreuzgitterstruktur, die durch entsprechend angeordnete Einzelkomponenten 18 gebildet wird, so daß zwischen den Einzelkomponenten Freizonen 34 bestehen.The fabric 16 shown in FIG. 1 has a cross-lattice structure which is formed by correspondingly arranged individual components 18 , so that there are free zones 34 between the individual components.

Bei einem vorgefertigten Gelege 16 besteht an den Kreuzungspunkten der Einzelkomponenten eine durch Klebung erzielte Verbindung, so daß sich das Gelege auf einer Vorratsrolle anordnen läßt.In the case of a prefabricated scrim 16, there is a connection achieved by adhesive bonding at the points of intersection of the individual components, so that the scrim can be arranged on a supply roll.

Die Einzelkomponenten 18 besitzen eine relativ hohe Reißfestigkeit und sind somit vorzugsweise in mechanischer Hinsicht wesentlich höher beanspruchbar, als übliche Vliesschichten. Zweckmäßig ist es, die Einzelkomponenten 18 des Geleges 16 entweder durch Endlosfilamente oder durch Fasern zu bilden.The individual components 18 have a relatively high tensile strength and are therefore preferably mechanically much more stressable than conventional fleece layers. It is expedient to form the individual components 18 of the scrim 16 either by continuous filaments or by fibers.

In der schematischen Querschnittsansicht gemäß Fig. 2 ist ein fertiges Verbundvliesmaterial 10 zu erkennen, welches aus einer oberen Vliesmaterialschicht 12 und einer unteren Vliesmaterialschicht 14 besteht, zwischen denen das Gelege 16 sandwichartig eingebunden ist. Das Verbundvliesmaterial 10 weist somit einen dreischichtigen Aufbau auf.A finished composite nonwoven material 10 can be seen in the schematic cross-sectional view according to FIG. 2, which consists of an upper nonwoven material layer 12 and a lower nonwoven material layer 14 , between which the scrim 16 is sandwiched. The composite nonwoven material 10 thus has a three-layer structure.

In Fig. 3 ist in einer weiteren Querschnittsansicht zu erkennen, wie das Verbundvliesmaterial 10 zusammengehalten wird. Der dreischichtige Aufbau besitzt diskrete Verbindungspunkte 20, an denen die drei Schichten in an sich bekannter Weise mit Hilfe eines Prägekalanders unter Einwirkung von Wärme miteinander verbunden werden, wobei dann die Einzelkomponenten 18 des Geleges 16 mit einem reaktivierbaren Kleber umgeben sein können, um eine Klebeverbindung an den Verbindungspunkten 20 herzustellen.A further cross-sectional view of how the composite nonwoven material 10 is held together can be seen in FIG. 3. The three-layer structure has discrete connection points 20 at which the three layers are connected to one another in a manner known per se with the aid of an embossing calender under the action of heat, in which case the individual components 18 of the scrim 16 can then be surrounded with a reactivatable adhesive in order to provide an adhesive connection to establish the connection points 20 .

In Fig. 4 ist schematisch ein mögliches Verfahren zur Herstellung eines Verbundvliesmaterials 10 gezeigt. Es wird davon ausgegangen, daß sich auf Vorratsrollen 22 und 24 bereits vorgefertigte Vliesmaterialschichten 12 und 14 befinden. Eine weitere Vorratsrolle 26 nimmt das bereits vorgefertigte Gelege 16 auf. Wie in Fig. 4 verdeutlicht wird, sind die einzelnen Vorratsrollen 22, 24 und 26 so angeordnet, daß sich für das Endprodukt in Form des Verbundvliesmaterials 10 der gewünschte sandwichartige Aufbau erzielen läßt.In FIG. 4, a possible method for producing a composite nonwoven material 10 is schematically shown. It is assumed that there are prefabricated nonwoven material layers 12 and 14 on supply rolls 22 and 24 . The pre-fabricated scrim 16 takes up a further supply roll 26 . As shown in Fig. 4, the individual supply rolls 22 , 24 and 26 are arranged so that the desired sandwich-like structure can be achieved for the end product in the form of the composite nonwoven material 10 .

Zur Bildung des Verbundvliesmaterials 10 selbst werden die drei Schichten, nämlich die obere Vliesschicht 12, das Gelege 16 und die untere Vliesschicht 14, in einer Prägestation 28 mit zwei Prägewalzen 30 und 32 in an sich bekannter Weise miteinander verbunden. Dabei kann eine Prägewalze zum Einsatz kommen, welche an diskreten Verbindungspunkten 20 (vgl. Fig. 3) die Verbindungsstruktur herstellt. To form the composite nonwoven material 10 itself, the three layers, namely the upper nonwoven layer 12 , the scrim 16 and the lower nonwoven layer 14 , are connected to one another in a stamping station 28 with two stamping rollers 30 and 32 in a manner known per se. An embossing roller can be used, which produces the connection structure at discrete connection points 20 (cf. FIG. 3).

Gemäß einem anderen Verfahren ist es daneben auch möglich, so vorzugehen, daß vorgefertigte Vliesmaterialschichten 12 und 14 von entsprechenden Vorratsrollen verwendet werden, und daß das Gelege selbst noch produziert wird. Dies erfolgt dadurch, daß die Einzelkomponenten des Geleges durch ein Klebebad geführt werden, und daß dann anschließend die Verklebung des Geleges mit den beiden Vliesschichten durch Kalandrierung erfolgt.According to another method, it is also possible to proceed in such a way that prefabricated nonwoven material layers 12 and 14 of corresponding supply rolls are used, and that the scrim itself is still produced. This takes place in that the individual components of the scrim are passed through an adhesive bath and that the scrim is then bonded to the two nonwoven layers by calendering.

Bei einem weiteren möglichen Verfahren wird ein vorgefertigtes Gelege vorausgesetzt, dessen Einzelkomponenten mit einem reaktivierbaren Kleber umgeben sind. Die Vliesmaterialschichten selbst werden noch im üblichen Spinnvliesverfahren hergestellt und anschließend in einer Prägestation mit dem Gelege zusammengebracht.Another possible method is a prefabricated clutch provided that Individual components with a reactivable adhesive are surrounded. The nonwoven material layers themselves will be still manufactured in the usual spunbond process and then in an embossing station with the clutch brought together.

Für die Bildung des Geleges selbst lassen sich in vorteilhafter Weise synthetische Fasern verwenden, z. B. aus PP oder PET oder PE.For the formation of the clutch itself can be in advantageously use synthetic fibers, e.g. B. made of PP or PET or PE.

Claims (15)

1. Verbundvliesmaterial (10), bestehend aus einer oberen (12) und unteren (14) Vliesmaterialschicht mit an sich bekannten wasserdurchlässigen und luftdurchlässigen Eigenschaften, zwischen denen ein Gelege angeordnet ist, dessen Einzelkomponenten im gegenseitigen Abstand zueinander verlaufen, wobei die mechanische Zugfestigkeit der Einzelkomponenten gleich oder größer der mechanischen Zugfestigkeit bzw. Reißfestigkeit der Vliesmaterialschichten ist, wobei die Einzelkomponenten durch Adhäsive (Kleber) mit den beiden Vliesmaterialschichten verbunden sind.1. composite nonwoven material ( 10 ), consisting of an upper ( 12 ) and lower ( 14 ) nonwoven material layer with known water-permeable and air-permeable properties, between which a scrim is arranged, the individual components of which are spaced apart from one another, the mechanical tensile strength of the individual components is equal to or greater than the mechanical tensile strength or tensile strength of the nonwoven material layers, the individual components being connected to the two nonwoven material layers by adhesives (adhesives). 2. Verbundvliesmaterial nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Vliesmaterialschichten (12, 14) an diskreten Stellen (20) miteinander verbunden sind.2. Composite nonwoven material according to claim 1, characterized in that the two nonwoven material layers ( 12 , 14 ) are connected to one another at discrete locations ( 20 ). 3. Verbundvliesmaterial nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß das Gelege (16) aus im Winkel zueinander verlaufenden Einzelkomponenten (18) besteht, die eine Kreuzgitterstruktur bilden, so daß zwischen den Einzelkomponenten Freizonen gebildet sind.3. Composite nonwoven material according to claim 1 and / or 2, characterized in that the scrim ( 16 ) consists of individual components ( 18 ) which run at an angle to one another and form a cross-lattice structure, so that free zones are formed between the individual components. 4. Verbundvliesmaterial nach Anspruch 3, dadurch gekennzeichnet, daß das Gelege (16) aus etwa rechtwinkelig zueinander verlaufenden Einzelkomponenten (18) besteht, so daß die Freizonen (34) in etwa rechteckförmig ausgebildet sind.4. composite nonwoven material according to claim 3, characterized in that the scrim ( 16 ) consists of approximately at right angles to each other individual components ( 18 ), so that the free zones ( 34 ) are approximately rectangular. 5. Verbundvliesmaterial nach Anspruch 4, dadurch gekennzeichnet, daß die rechteckförmigen Freizonen (34) in etwa quadratisch ausgebildet sind und eine Seitenlänge von ca. 0,3-3,0 cm besitzen.5. composite nonwoven material according to claim 4, characterized in that the rectangular free zones ( 34 ) are approximately square and have a side length of about 0.3-3.0 cm. 6. Verbundvliesmaterial nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Gelege (16) zusätzlich diagonal zu den rechteckförmigen Freizonen verlaufende Einzelkomponenten aufweist.6. Composite nonwoven material according to claim 4 or 5, characterized in that the scrim ( 16 ) additionally has individual components running diagonally to the rectangular free zones. 7. Verbundvliesmaterial nach einem der vorhergehenden Ansprüche 1-6, dadurch gekennzeichnet, daß die Einzelkomponenten (18) aus Endlosfilamenten bestehen.7. Composite nonwoven material according to one of the preceding claims 1-6, characterized in that the individual components ( 18 ) consist of continuous filaments. 8. Verbundvliesmaterial nach einem der vorhergehenden Ansprüche 1-6, dadurch gekennzeichnet, daß die Einzelkomponenten (18) aus synthetischen Fasern, z. B. aus PE oder PP oder PET bestehen.8. composite nonwoven material according to one of the preceding claims 1-6, characterized in that the individual components ( 18 ) made of synthetic fibers, for. B. consist of PE or PP or PET. 9. Verbundvliesmaterial nach einem der vorhergehenden Ansprüche 1-8, dadurch gekennzeichnet, daß die Reißfestigkeit des Geleges (16) um mindestens 50% größer ist als die Reißfestigkeit der Vliesmaterialschichten (12, 14).9. composite nonwoven material according to one of the preceding claims 1-8, characterized in that the tear strength of the scrim ( 16 ) is at least 50% greater than the tear strength of the nonwoven material layers ( 12 , 14 ). 10. Verbundvliesmaterial nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Vliesmaterialschichten (12, 14) durch ein herkömmliches Spinnvlies gebildet sind.10. Composite nonwoven material according to claim 1 and / or 2, characterized in that the nonwoven material layers ( 12 , 14 ) are formed by a conventional spunbonded nonwoven. 11. Verbundvliesmaterial nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Vliesschichten (12, 14) durch ein herkömmliches Stapelfaservlies gebildet sind.11. Composite nonwoven material according to claim 1 and / or 2, characterized in that the nonwoven layers ( 12 , 14 ) are formed by a conventional staple fiber nonwoven. 12. Verbundvliesmaterial nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Vliesschichten (12, 14) durch ein herkömmliches Verbundvliesmaterial gebildet sind.12. Composite nonwoven material according to claim 1 and / or 2, characterized in that the nonwoven layers ( 12 , 14 ) are formed by a conventional composite nonwoven material. 13. Verfahren zur Herstellung eines Verbundvliesmaterials nach einem oder mehreren der vorhergehenden Ansprüche 1-12, dadurch gekennzeichnet, daß das Verbundvliesmaterial aus bereits vorgefertigten Vliesmaterialschichten und aus einem vorgefertigten, mit einem reaktivierbaren Kleber umgebenen, aus im Abstand voneinander angeordneten Einzelkomponenten gebildeten Geleges produziert wird, wobei die einzelnen vorgefertigten Komponenten von Vorratsrollen abgezogen und übereinander gelegt und danach miteinander verbunden werden.13. Process for producing a Composite nonwoven material according to one or more of the preceding claims 1-12, characterized in that the composite nonwoven material from pre-made Non-woven material layers and from a prefabricated, with surrounded by a reactivable adhesive, from at a distance arranged from each other arranged individual components Geleges is produced, the individual prefabricated components deducted from supply rolls and placed on top of each other and then connected to each other will. 14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß die übereinandergelegten Bestandteile mittels eines Prägekalanders thermisch an diskreten Stellen miteinander verschweißt und verbunden werden.14. The method according to claim 13, characterized in that the superimposed components by means of a Embossing calenders thermally with each other at discrete points welded and connected. 15. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß die übereinander gelegten Bestandteile mittels eines partiell aufgetragenen Klebers miteinander verbunden werden.15. The method according to claim 13, characterized in that the superimposed components by means of a partially applied adhesive bonded together will.
DE4130343A 1991-09-12 1991-09-12 Composite nonwoven material and method for producing a composite nonwoven material Expired - Fee Related DE4130343C2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0748894A2 (en) * 1995-06-14 1996-12-18 J.W. Suominen Oy Method for increasing directionality of fluid transport in nonwoven sheet materials, and disposable absorbent articles containing the nonwoven material
WO2000040793A1 (en) * 1999-01-08 2000-07-13 Carl Freudenberg Flat nonwoven fiber aggregate with three-dimensional structure and method for its production
WO2001083140A1 (en) * 2000-05-02 2001-11-08 Kimlon Invest Aps Plastic laminate and flexible tube
EP1262587A1 (en) * 2001-05-30 2002-12-04 Carl Freudenberg KG Multilayer material and manufacturing process
EP1817954A3 (en) * 2006-02-08 2008-11-26 Carl Freudenberg KG Sheet material for protecting crops
DE102004022464B4 (en) * 2004-05-06 2011-08-18 Techtex GmbH Vliesstoffe, 09648 Molded part for the interior decoration of vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001472A (en) * 1971-09-03 1977-01-04 Kimberly-Clark Corporation Nonwoven reinforced cellulosic material and method of preparation
DE2146790A1 (en) * 1971-09-18 1973-03-29 Johnson & Johnson Laparotomic sponges - non-woven reinforced absorbent textile discardable after one use
US3862877A (en) * 1972-05-22 1975-01-28 Buckeye Cellulose Corp Clothlike tissue laminates
GB1453447A (en) * 1972-09-06 1976-10-20 Kimberly Clark Co Nonwoven thermoplastic fabric
US4522863A (en) * 1984-06-21 1985-06-11 Kimberly-Clark Corporation Soft nonwoven laminate bonded by adhesive on reinforcing scrim
FR2633803B1 (en) * 1988-07-07 1991-10-31 Holzstoff Holding Sa COMPOSITE AGROTEXTILE AND ITS APPLICATIONS

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0748894A2 (en) * 1995-06-14 1996-12-18 J.W. Suominen Oy Method for increasing directionality of fluid transport in nonwoven sheet materials, and disposable absorbent articles containing the nonwoven material
EP0748894A3 (en) * 1995-06-14 1997-03-05 Suominen Oy J W Method for increasing directionality of fluid transport in nonwoven sheet materials, and disposable absorbent articles containing the nonwoven material
WO2000040793A1 (en) * 1999-01-08 2000-07-13 Carl Freudenberg Flat nonwoven fiber aggregate with three-dimensional structure and method for its production
US6723416B1 (en) 1999-01-08 2004-04-20 Firma Carl Freudenberg Flat nonwoven fiber aggregate with three-dimensional structure and method for its production
WO2001083140A1 (en) * 2000-05-02 2001-11-08 Kimlon Invest Aps Plastic laminate and flexible tube
EP1262587A1 (en) * 2001-05-30 2002-12-04 Carl Freudenberg KG Multilayer material and manufacturing process
US7008685B2 (en) 2001-05-30 2006-03-07 Carl Freudenberg Kg Laminated material and method for its production
DE102004022464B4 (en) * 2004-05-06 2011-08-18 Techtex GmbH Vliesstoffe, 09648 Molded part for the interior decoration of vehicles
EP1817954A3 (en) * 2006-02-08 2008-11-26 Carl Freudenberg KG Sheet material for protecting crops

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