WO2001066845A1 - Textile fabric consisting of natural fibres - Google Patents
Textile fabric consisting of natural fibres Download PDFInfo
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- WO2001066845A1 WO2001066845A1 PCT/DE2001/000943 DE0100943W WO0166845A1 WO 2001066845 A1 WO2001066845 A1 WO 2001066845A1 DE 0100943 W DE0100943 W DE 0100943W WO 0166845 A1 WO0166845 A1 WO 0166845A1
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- fibers
- textile fabric
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- fibre
- bast
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Classifications
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- 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
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- 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
- D04H1/4266—Natural fibres not provided for in group D04H1/425
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- 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
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
Definitions
- the invention relates to a textile fabric made of natural fibers, preferably bast fiber or mixtures of bast fibers, which have been consolidated by fluid jets.
- DE 94 22 147 Ul describes a multi-layer body which consists of different layers of nonwovens, which can contain natural fibers, plastic fibers and glass fibers.
- the nonwovens used for the layers are individually consolidated by needling. If a needle breaks, metallic needle particles will inevitably remain in the needled nonwoven. These can lead to considerable problems in subsequent processing steps.
- Thermally bonded natural fiber nonwovens are also known. The advantage of this is that shorter fibers can also be used.
- the fibers are provided with a binder before, during or after the fleece laying, or processed in a mixture with thermoplastic binder fibers. The application of heat activates the binder or leads to the melting of the binding fibers and thereby to the consolidation of the fleece.
- a nonwoven is described in DE 196 02 551 Cl.
- the mat shown consists of a fiber mixture of natural and thermoplastic binding fibers.
- a top layer made of thermoplastic fibers is used. Through the use of binding fibers or binding agents, it is not possible to reuse the nonwovens by type. In addition, the release of chemicals used to bind chemicals during use cannot be excluded.
- thermoplastic binder fibers or thermoplastic binders when using natural fibers makes the manufactured products expensive and sorted recycling is impossible.
- the invention has for its object to create textile fabrics made of natural fibers, preferably bast fibers, which do not require an additional binder, allow the processing of short fibers and residual dusts and give the fabrics good strength values.
- natural fibers preferably bast fibers
- bast fibers are relatively stiff and have a lot of woody parts, short fibers and dusts, which put a high load on the filtration system, which cleans the working medium of the foreign substances.
- the filtration system was not subjected to high loads.
- the fabric according to the invention consists of natural fibers, preferably of bast fibers and in particular of hemp fibers, which contain a high proportion of residues from fiber digestion, such as short fibers, fiber dusts and other fiber accompanying substances.
- feedstocks for the textile fabrics according to the invention can be produced and purchased at a favorable price.
- the fleece can be laid mechanically, aerodynamically or hydrodynamically, the fleece is consolidated by fluid jets, preferably by water jets.
- the residues arising in the area formation and consolidation process such as short fibers, fiber dusts, etc. are collected and together with already solidified nonwoven particles, which are comminuted and appropriately tailored supplied before or during the consolidation of the natural fibers. In contrast to currently known methods, these residues have positive effects on the properties of the textile fabrics according to the invention.
- the structure of the textile fabrics according to the invention can be both uniform and also consist of a core layer which is provided on one or both sides with cover layers.
- both the core and the cover layers can consist of pure bast fibers, only different compositions and / or densities. Fibers made of synthetic resin or inorganic fibers can also be incorporated into the cover layers. Preferably only bast fibers are used to build up the core layer.
- the structure of the multilayer textile fabric can be carried out continuously by a repeated pass through the consolidation device, in which new fibers are fed to the already formed fabric.
- prefabricated nonwovens can be placed on the nonwoven forming the core layer and then connected to one another by fluid jet consolidation.
- the weight per unit area of the textile fabrics can be set between 30 and 3000 g / m and the tensile strength between 100 and 25000 N / m.
- the textile fabrics according to the invention have a dense to open structure and are distinguished by high tear strength.
- the preferred structure of pure bast fibers opens up a wide range of applications, e.g. B. as a material for wall cladding, as an element of a building material system, for the production of vapor-permeable insulation materials, coating substrates, filtration nonwovens, geotextiles, wiping cloths, carpets, reinforcing nonwovens and as a semi-finished product for the production of molded parts.
- the textile fabric consists of hemp fibers with a high proportion of residues from fiber digestion, produced without the addition of binders or other fibers and solidified using water jet technology.
- the areas aces is 50 g / m, the tensile strength in the longitudinal direction 600 N / m, the tensile strength in the transverse direction 300 N / m with a thickness of 0.8 mm.
- the textile fabric is primarily suitable as a coating substrate for. B. in combination with resin systems, as environmentally friendly packaging material or as a layer of a sandwich material.
- the textile fabric consists of hemp fibers without the addition of binders and other fibers and was consolidated using water jets.
- the mass per unit area is 300 g / m with a thickness of 1.5 mm, the tensile strength is 7000 N / m in the longitudinal direction and 5000 N / m in the transverse direction. Due to the high compaction of the nonwoven during water jet consolidation, it is particularly suitable as an insulating fleece in flooring systems.
- the textile fabric consists of hemp fibers with a proportion of residues and was consolidated with water jets.
- the mass per unit area is 120 g / m
- the tensile strength in the longitudinal direction is 700 N / m and in the transverse direction 500 N / m.
- the textile fabrics are particularly suitable as coating supports or as replacements for reinforcing materials made of glass fiber nonwovens in sandwich systems for molded parts. Comparative articles made from regenerated cellulose fibers under the same consolidation conditions have significantly lower strengths.
- the tensile strength in the longitudinal and transverse directions is only 200 N / m.
- a textile fabric according to Example 2 was used.
- the textile fabric is given a defined surface structure through special control of the hardening process or through aggregates after the hardening.
- Such structured textile fabrics are used in particular as wallcovering instead of wallpaper.
- the textile fabric consists of a mixture of 50% hemp fibers and 50% PET bicomponent fibers, which are consolidated by water jets.
- the 2.5 mm thick textile fabric has a tensile strength of 11000 N / m in the longitudinal direction and 8000 N / m in the transverse direction. By activating the bicomponent fibers in the drying process, the tensile strength can be increased further. This gives it a special use as a reinforcing material.
- the textile fabric consists of a mixture of 50% hemp fibers and 50% polypropylene fibers, which have been consolidated by water jets.
- the textile fabric has good mechanical properties, so tear resistance 11000 N / m in the longitudinal direction and 8000 N / m in the transverse direction.
- Such textile fabrics can be easily formed in thermoforming processes. Natural fiber reinforced components are obtained.
- the textile fabric was made from hemp fibers without the addition of binders or other fibers and solidified by water jets.
- the thickness of the textile fabric is 4 mm
- the basis weight is 1500 g / m
- the tensile strength in the longitudinal direction is 18000 N / m
- in the transverse direction is 15000 N / m.
- the very high wet strength of the textile fabric enables use in special filters, e.g. B. for the absorption of heavy metals in sewage sludge filtration.
- Other applications are as insulation material and for the production of structured panels.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Details Of Garments (AREA)
Abstract
Description
Textiles Flächengebilde aus NaturfasernTextile fabrics made of natural fibers
Beschreibungdescription
Die Erfindung betrifft ein textiles Flächengebilde aus Naturfasern, vorzugsweise Bastfaser oder Mischungen aus Bastfasern, die durch Fluidstrahlen verfestigt wurden.The invention relates to a textile fabric made of natural fibers, preferably bast fiber or mixtures of bast fibers, which have been consolidated by fluid jets.
Für die bisher bekannten textilen Flächengebilde, die in den unterschiedlichsten Anwendungsgebieten eingesetzt werden, wurden bisher nur hochwertige Naturfasern großer Länge und großer Reinheit verwendet. Vornehmlich werden die Naturfasern in Mischungen mit Trägerfasern aus Kunstharzen verarbeitet . Grund dafür ist, dass die einzelnen Naturfasern sehr geringe Reibungskräfte untereinander besitzen und einen hohen Anteil an sehr kurzen Fasern und Reststäuben, der mehr als 25 % ausmacht, aufweisen. Wurden Naturfasern mit kurzen Faserlängen und/oder größeren Fremd- und Reststoffanteilen eingesetzt, so kam es oft zu Havarien in den Verfestigungsagregaten. Deshalb wurden kürzere Fasern in der Regel nur unter Zugabe von Trägerfasern aus Kunstharzen verarbeitet .So far, only high-quality natural fibers of great length and high purity have been used for the textile fabrics known to date, which are used in a wide variety of fields of application. The natural fibers are mainly processed in mixtures with carrier fibers made of synthetic resins. The reason for this is that the individual natural fibers have very low frictional forces with one another and a high proportion of very short fibers and residual dusts, which makes up more than 25%. If natural fibers with short fiber lengths and / or larger foreign and residual material contents were used, there were often accidents in the consolidation units. For this reason, shorter fibers were generally only processed with the addition of synthetic fibers.
So wird in der DE 94 22 147 Ul ein Mehrschichtkörper beschrieben, welcher aus verschiedenen Schichten von Vliesstoffen besteht, welche Naturfasern, Kuststofffasern und Glasfasern enthalten können. Die für die Schichten verwendeten Vliesstoffe werden einzeln durch Vernadeln verfestigt. Durch auftretenden Nadelbruch verbleiben im vernadelten Vliesstoff unvermeidlich metallische Nadelpartikel zurück. Diese können zu teilweise erheblichen Problemen in nachfolgenden Verarbeitungsschritten führen.For example, DE 94 22 147 Ul describes a multi-layer body which consists of different layers of nonwovens, which can contain natural fibers, plastic fibers and glass fibers. The nonwovens used for the layers are individually consolidated by needling. If a needle breaks, metallic needle particles will inevitably remain in the needled nonwoven. These can lead to considerable problems in subsequent processing steps.
Ebenso sind thermisch verfestigte Naturfaservliese bekannt. Diese bieten den Vorteil, dass auch kürzere Fasern eingesetzt werden können. Die Fasern werden vor, während oder nach der Vlieslegung mit einem Bindemittel versehen oder in Mischung mit thermoplastischen Bindefasern verarbeitet. Die Zuführung von Wärme aktiviert das Bindemittel bzw. führt zum Aufschmelzen der Bindefasern und dadurch zur Verfestigung des Vlieses. Ein solcher Vliesstoff wird in der DE 196 02 551 Cl beschrieben. Die dargestellte Matte besteht aus einem Fasergemisch von Natur- und thermoplastischen Bindefasern. Zudem wird eine Deckschicht aus thermoplastischen Fasern verwendet. Durch den Einsatz von Bindefasern bzw. Bindemitteln ist eine sortenreine Wiederverwendung der Vliesstoffe nicht möglich. Zudem kann das Freiwerden eventuell von zur Bindung eingesetzter Chemikalien während des Gebrauches nicht ausgeschlossen werden.Thermally bonded natural fiber nonwovens are also known. The advantage of this is that shorter fibers can also be used. The fibers are provided with a binder before, during or after the fleece laying, or processed in a mixture with thermoplastic binder fibers. The application of heat activates the binder or leads to the melting of the binding fibers and thereby to the consolidation of the fleece. Such a nonwoven is described in DE 196 02 551 Cl. The mat shown consists of a fiber mixture of natural and thermoplastic binding fibers. In addition, a top layer made of thermoplastic fibers is used. Through the use of binding fibers or binding agents, it is not possible to reuse the nonwovens by type. In addition, the release of chemicals used to bind chemicals during use cannot be excluded.
Gleiche Aussagen sind zu der in der DE 31 50 547 AI beschriebenen Formmasse auf Basis thermoplastischer Kunstharze zu sagen.The same statements can be made about the molding composition based on thermoplastic synthetic resins described in DE 31 50 547 A1.
Das Arbeiten mit thermoplastischen Bindefasern bzw. thermoplastischen Bindemittel beim Einsatz von Naturfasern macht die hergestellten Produkte teuer und ein sortenreines Recycling unmöglich.Working with thermoplastic binder fibers or thermoplastic binders when using natural fibers makes the manufactured products expensive and sorted recycling is impossible.
Der Erfindung liegt die Aufgabe zugrunde, textile Flächengebilde aus Naturfasern, vorzugsweise Bastfasern zu schaffen, die ohne ein zusätzliches Bindemittel auskommen, das Verarbeiten von Kurzfasern und Reststäuben erlauben und den Flächengebilden gute Festigkeitswerte verleihen.The invention has for its object to create textile fabrics made of natural fibers, preferably bast fibers, which do not require an additional binder, allow the processing of short fibers and residual dusts and give the fabrics good strength values.
Es wurde erfindungsgemäß gefunden, das Naturfasern, vorzugsweise Bastfasern sich vorzüglich zu textilen Flächengebilden unter Einsatz des Fluidstrahlverfestigungsverfah- rens verarbeiten lassen. Obwohl Bastfasern relativ steif und mit viel verholzten Teilen, Kurzfasern und Stäuben behaftet sind, die eine hohe Belastung der Filtrationsanlage, welche das Arbeitsmedium von den Fremdstoffen reinigt, um ein Verstopfen der Hochdruckdüsen zu verhindern, erwarten ließen, konnte überraschend festgestellt werden, dass die hohe Belastung der Filtrationsanlage ausblieb.It has been found according to the invention that natural fibers, preferably bast fibers, can be processed excellently into textile fabrics using the fluid jet consolidation method. Although bast fibers are relatively stiff and have a lot of woody parts, short fibers and dusts, which put a high load on the filtration system, which cleans the working medium of the foreign substances, In order to prevent the high-pressure nozzles from becoming clogged, it was surprisingly found that the filtration system was not subjected to high loads.
Überraschenderweise tritt bei der Verfestigung der Naturfasern, vorzugsweise Bastfasern zu textilen Flächengebilden durch Fluidstrahlen neben der Faserverschlingung auch eine Faserverfilzung durch die eigentlich störenden anteiligen Kurzfasern und Faserstäube auf. Neben der nicht zu erwartenden Faserverfilzung durch die Kurzfasern und Stäube tritt unter dem Einfluss der unter Hochdruck stehenden Fluidstrahlen eine Abnahme der Steifigkeit der holzigen Bestandteile hin zu einer größeren Flexibilität ein, was ebenfalls zu einer Verbesserung der Vliesbildung beiträgt. Besonders gute Ergebnisse werden mit Hanffasern erzielt, was sich anhand der erreichbaren Reißfestigkeiten belegen läßt.Surprisingly, when the natural fibers, preferably bast fibers, are solidified into textile fabrics by fluid jets, fiber entangling also occurs due to the actually disruptive proportionate short fibers and fiber dusts. In addition to the unexpected fiber matting caused by the short fibers and dusts, under the influence of the high-pressure fluid jets there is a decrease in the stiffness of the woody components towards greater flexibility, which also contributes to an improvement in the formation of fleece. Particularly good results are achieved with hemp fibers, which can be demonstrated by the tensile strengths that can be achieved.
Das erfindungsgemäße Flächengebilde besteht aus Naturfasern, vorzugsweise aus Bastfasern und insbesondere aus Hanffasern welche einen hohen Anteil an Reststoffen aus dem Faseraufschluss, wie Kurzfaser, Faserstäube und sonstige Faserbegleitsubstanzen beinhalten. Diese Einsatzstoffe für die erfindungsgemäßen textilen Flächengebilde können zu einem günstigen Preis hergestellt und bezogen werden.The fabric according to the invention consists of natural fibers, preferably of bast fibers and in particular of hemp fibers, which contain a high proportion of residues from fiber digestion, such as short fibers, fiber dusts and other fiber accompanying substances. These feedstocks for the textile fabrics according to the invention can be produced and purchased at a favorable price.
Die Vlieslegung kann mechanisch, aerodynamisch oder hydrodynamisch erfolgen, die Verfestigung des Vlieses erfolgt durch Fluidstrahlen, vorzugsweise durch Wasserstrahlen. Die im Flächenbildungs- und Verfestigungdprozess anfallenden Reststoffe wie Kurzfasern, Faserstäube usw. werden gesammelt und zusammen mit bereits verfestigten Vliespartikeln, welche zerkleinert und entsprechend kofektioniert werden vor oder während der Verfestigung der Naturfasern zugeführt. Im Gegensatz zu derzeitigen bekannten Verfahren, werden durch diese Reststoffe positive Wirkungen auf die Eigenschaften der erfindungsgemäßen textilen Flächengebilde erzielt .The fleece can be laid mechanically, aerodynamically or hydrodynamically, the fleece is consolidated by fluid jets, preferably by water jets. The residues arising in the area formation and consolidation process such as short fibers, fiber dusts, etc. are collected and together with already solidified nonwoven particles, which are comminuted and appropriately tailored supplied before or during the consolidation of the natural fibers. In contrast to currently known methods, these residues have positive effects on the properties of the textile fabrics according to the invention.
Fluidstrahlverfestigte textile Flächengebilde aus vorzugsweise groben Bastfasern kurzer Länge galten bisher als nicht herstellbar, da Bastfasern schlechte Verarbeitungseigenschaften durch die schlechte Verschlingung der Fasern besitzen. Beim erfindungsgemäßen textilen Flächengebilde werden die sehr guten Verfilzungseigenschaften der Bastfasern, besonders bei Verwendung von groben Fasern mit großem Streubereich hinsichtlich der Feinheit ausgenutzt, wobei die Verfilzung durch die Einbringung von Produktionsrest- stoffen weiter verstärkt wird.Previously, fluid jet-consolidated textile fabrics made of preferably coarse bast fibers were considered not to be producible, since bast fibers have poor processing properties due to the poor interlacing of the fibers. In the textile fabric according to the invention, the very good felting properties of the bast fibers, particularly when using coarse fibers with a large scattering range in terms of fineness, are exploited, the felting being further increased by the introduction of production residues.
Die erfindungsgemäßen textilen Flächengebilde können in ihrem Aufbau sowohl einheitlich sein, als auch aus einer Kernschicht bestehen, die ein- oder beidseitig mit Deckschichten ausgestattet ist . Dabei können bei einem mehrschichtigen Aufbau sowohl Kern- als auch die Deckschichten aus reinem Bastfasern, nur unterschiedlicher Zusammensetzung und/oder Verdichtung bestehen. Ebenso können in die Deckschichten Fasern aus Kunstharz oder anorganischen Fasern eingearbeitet werden. Vorzugsweise werden für den Aufbau der Kernschicht nur Bastfasern eingesetzt . Der Aufbau des mehrschichtigen textilen Flächengebildes kann kontinuierlich durch einen mehrmaligen Durchlauf durch die Verfestigungseinrichtung erfolgen, bei dem jeweils neue Fasern dem schon gebildeten Flächengebilde zugeführt werden. Bei einer anderen Variante können auf das die Kernschicht bildende Vlies jeweils schon vorgefertigte Vliese aufgelegt und dann durch Fluidstrahlverfestigung miteinander verbunden werden.The structure of the textile fabrics according to the invention can be both uniform and also consist of a core layer which is provided on one or both sides with cover layers. In the case of a multilayer structure, both the core and the cover layers can consist of pure bast fibers, only different compositions and / or densities. Fibers made of synthetic resin or inorganic fibers can also be incorporated into the cover layers. Preferably only bast fibers are used to build up the core layer. The structure of the multilayer textile fabric can be carried out continuously by a repeated pass through the consolidation device, in which new fibers are fed to the already formed fabric. In another variant, prefabricated nonwovens can be placed on the nonwoven forming the core layer and then connected to one another by fluid jet consolidation.
Das Flächengewicht der textilen Flächengebilde kann zwischen 30 bis 3000 g/m und die Reißfestigkeit zwischen 100 bis 25000 N/m eingestellt werden.The weight per unit area of the textile fabrics can be set between 30 and 3000 g / m and the tensile strength between 100 and 25000 N / m.
Die erfindungsgemäßen textilen Flächengebilde besitzen eine dichte bis offene Struktur und zeichnen sich durch hohe Reißfestigkeit aus. Der vorzugsweise Aufbau aus reinen Bastfasern eröffnet eine große Palette an Einsatzgebieten, z. B. als Material zur Wandbekleidung, als Element eines BaustoffSystems, zur Herstellung von diffusionsoffenen Dämmstoffen, Beschichtungsträgern, Filtrationsvliesstoffen, Geotextilen, Wischtüchern, Teppichgründen, Armierungsvliesstoffen und als Halbzeug zur Herstellung von Formteilen.The textile fabrics according to the invention have a dense to open structure and are distinguished by high tear strength. The preferred structure of pure bast fibers opens up a wide range of applications, e.g. B. as a material for wall cladding, as an element of a building material system, for the production of vapor-permeable insulation materials, coating substrates, filtration nonwovens, geotextiles, wiping cloths, carpets, reinforcing nonwovens and as a semi-finished product for the production of molded parts.
Die Erfindung soll nachfolgend an Beispielen näher erläutert werden.The invention will be explained in more detail below using examples.
Beispiel 1example 1
Das textile Flächengebilde besteht aus Hanffasern mit hohem Anteil an Reststoffen aus dem Faseraufschluss, hergestellt ohne Zusatz von Bindemitteln oder anderen Fasern und verfestigt nach der Wasserstrahltechnologie. Die Flächen asse beträgt 50 g/m, die Reißfestigkeit in Längsrichtung 600 N/m, die Reißfestigkeit in Querrichtung 300 N/m bei einer Dicke von 0,8 mm. Das textile Flächengebilde ist vornehmlich geeignet als Beschichtungsträger z. B. in Kombination mit Harzsystemen, als umweltverträgliches Verpackungsmaterial oder als Schicht eines Sandwichmaterials .The textile fabric consists of hemp fibers with a high proportion of residues from fiber digestion, produced without the addition of binders or other fibers and solidified using water jet technology. The areas aces is 50 g / m, the tensile strength in the longitudinal direction 600 N / m, the tensile strength in the transverse direction 300 N / m with a thickness of 0.8 mm. The textile fabric is primarily suitable as a coating substrate for. B. in combination with resin systems, as environmentally friendly packaging material or as a layer of a sandwich material.
Beispiel 2Example 2
Das textile Flächengebilde besteht aus Hanffasern ohne Zusatz von Bindemitteln und sonstigen Fasern und wurde verfestigt mittels Wasserstrahlen. Die Flächenmasse beträgt 300 g/m bei einer Dicke von 1,5 mm, die Reißfestigkeit beträgt in Längsrichtung 7000 N/m und in Querrichtung 5000 N/m. Durch die hohe Verdichtung des Vliesstoffes bei der Wasserstrahlverfestigung ist dieser besonders geeignet als Dämmvlies in Fußbodensystemen.The textile fabric consists of hemp fibers without the addition of binders and other fibers and was consolidated using water jets. The mass per unit area is 300 g / m with a thickness of 1.5 mm, the tensile strength is 7000 N / m in the longitudinal direction and 5000 N / m in the transverse direction. Due to the high compaction of the nonwoven during water jet consolidation, it is particularly suitable as an insulating fleece in flooring systems.
Beispiel 3Example 3
Das textile Flächengebilde besteht aus Hanffasern mit einem Anteil an Reststoffen und wurde mit Wasserstrahlen verfestigt. Die Flächenmasse beträgt 120 g/m, die Reißfestigkeit in Längsrichtung 700 N/m und in Querrichtung 500 N/m. Die textilen Flächengebilde sind besonders als Beschichtungsträger bzw. als Ersatz für Verstärkungsmaterialien aus Glasfaservliesstoffen in Sandwichsystemen für Formteile geeignet . Vergleichsartikel aus Regeneratzellulosefasern unter gleichen Verfestigungsbedingungen hergestellt weisen wesentlich geringere Festigkeiten auf. So beträgt die Reißfestigkeit in Längs- als auch in Querrichtung nur 200 N/m.The textile fabric consists of hemp fibers with a proportion of residues and was consolidated with water jets. The mass per unit area is 120 g / m, the tensile strength in the longitudinal direction is 700 N / m and in the transverse direction 500 N / m. The textile fabrics are particularly suitable as coating supports or as replacements for reinforcing materials made of glass fiber nonwovens in sandwich systems for molded parts. Comparative articles made from regenerated cellulose fibers under the same consolidation conditions have significantly lower strengths. The tensile strength in the longitudinal and transverse directions is only 200 N / m.
Beispiel 4Example 4
Es wurde ein textiles Flächengebilde gemäß Beispiel 2 eingesetzt . Durch besondere Steuerung des Verfestigungsprozesses oder durch Aggregate nach der Verfestigung wird dem textilen Flächengebilde eine definierte Oberflächenstruktur gegeben. Solche strukturierten textilien Flächengebilde finden insbesondere Anwendung als Wandbekleidung anstelle einer Tapete.A textile fabric according to Example 2 was used. The textile fabric is given a defined surface structure through special control of the hardening process or through aggregates after the hardening. Such structured textile fabrics are used in particular as wallcovering instead of wallpaper.
Beispiel 5Example 5
Das textile Flächengebilde besteht aus einer Mischung von 50 % Hanffasern und 50 % PET-Bikomponentenfasern, welche durch Wasserstrahlen verfestigt werden. Das 2,5 mm dicke textile Flächengebilde besitzt eine Reißfestigkeit von 11000 N/m in Längs- bzw. 8000 N/m in Querrichtung. Durch Aktivierung der Bikomponentenfasern im Trocknungsprozeß kann die Reißfestigkeit weiter erhöht werden. Dadurch ist ein spezieller Einsatz als Verstärkungsmaterial gegeben.The textile fabric consists of a mixture of 50% hemp fibers and 50% PET bicomponent fibers, which are consolidated by water jets. The 2.5 mm thick textile fabric has a tensile strength of 11000 N / m in the longitudinal direction and 8000 N / m in the transverse direction. By activating the bicomponent fibers in the drying process, the tensile strength can be increased further. This gives it a special use as a reinforcing material.
Beispiel 6Example 6
Das textile Flächengebilde besteht aus einer Mischung von 50 % Hanffasern und 50 % Polypropylenfasern, welche durch Wasserstrahlen verfestigt wurden. Das textile Flächengebilde besitzt gute mechanische Eigenschaften, so Reißfestigkei- ten von 11000 N/m in Längs- bzw. 8000 N/m in Querrichtung. Solche textile Flächengebilde lassen sich gut in Thermo- formprozessen umformen. Man erhält naturfaserverstärkte Bauteile.The textile fabric consists of a mixture of 50% hemp fibers and 50% polypropylene fibers, which have been consolidated by water jets. The textile fabric has good mechanical properties, so tear resistance 11000 N / m in the longitudinal direction and 8000 N / m in the transverse direction. Such textile fabrics can be easily formed in thermoforming processes. Natural fiber reinforced components are obtained.
Beispiel 7Example 7
Das textile Flächengebilde wurde hergestellt aus Hanffasern ohne Zusatz von Bindemitteln oder anderen Fasern und durch Wasserstrahlen verfestigt. Die Dicke des textilen Flächengebildes beträgt 4 mm, die Flächenmasse 1500 g/m, die Reißfestigkeit in Längsrichtung 18000 N/m und in Querrichtung 15000 N/m.The textile fabric was made from hemp fibers without the addition of binders or other fibers and solidified by water jets. The thickness of the textile fabric is 4 mm, the basis weight is 1500 g / m, the tensile strength in the longitudinal direction is 18000 N / m and in the transverse direction is 15000 N / m.
Die sehr hohe Nassfestigkeit des textilen Flächengebildes ermöglicht den Einsatz in Spezialfiltern z. B. zur Aufnahme von Schwermetallen bei der Klärschlammfiltration. Weitere Anwendungen sind die als Dämmmaterial und für die Herstellung von strukturierten Platten. The very high wet strength of the textile fabric enables use in special filters, e.g. B. for the absorption of heavy metals in sewage sludge filtration. Other applications are as insulation material and for the production of structured panels.
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01916922A EP1264025B1 (en) | 2000-03-07 | 2001-03-07 | Textile fabric consisting of natural fibres |
| AT01916922T ATE270721T1 (en) | 2000-03-07 | 2001-03-07 | TEXTILE STRUCTURE MADE OF NATURAL FIBERS |
| DE50102794T DE50102794D1 (en) | 2000-03-07 | 2001-03-07 | Textile fabrics made of natural fibers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20004553U DE20004553U1 (en) | 2000-03-07 | 2000-03-07 | Bast fiber nonwoven |
| DE20004553.9 | 2000-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001066845A1 true WO2001066845A1 (en) | 2001-09-13 |
Family
ID=7938640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2001/000943 Ceased WO2001066845A1 (en) | 2000-03-07 | 2001-03-07 | Textile fabric consisting of natural fibres |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1264025B1 (en) |
| AT (1) | ATE270721T1 (en) |
| DE (2) | DE20004553U1 (en) |
| WO (1) | WO2001066845A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2972462A1 (en) * | 2011-03-08 | 2012-09-14 | Geco Ingenierie | METHOD AND DEVICE FOR PRODUCTION OF NON-WOVEN GEOTEXTILE AND GEOTEXTILE SO PRODUCED |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002050355A1 (en) * | 2000-12-19 | 2002-06-27 | M & J Fibretech A/S | Web consisting of a base web and air-laid fibres hydroentangled on the base web |
| DE20118508U1 (en) | 2001-10-30 | 2002-02-28 | VLIESTEC AG, 10587 Berlin | Textile multi-layer sandwich system made of natural fibers with weights greater than 200 g / sqm |
| GB2452235A (en) * | 2007-03-05 | 2009-03-04 | Eco Mats Ltd | Plant fibre mat and method of making a plant fibre mat |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655361A1 (en) * | 1989-12-01 | 1991-06-07 | Kaysersberg Sa | Process for the manufacture of hydrophilic nonwovens comprising natural fibres, in particular unbleached cotton, and the nonwovens obtained |
| GB2264512A (en) * | 1992-02-28 | 1993-09-01 | Lantor | Hydro-entangled non-woven fabric |
| WO1996006222A1 (en) * | 1994-08-22 | 1996-02-29 | Sca Hygiene Paper Ab | Nonwoven material comprising a certain proportion of recycled fibres originating from nonwoven and/or textile waste |
| WO1996009915A1 (en) * | 1994-09-26 | 1996-04-04 | Heinrich Lippert Gmbh | Tool for mechanically treating surfaces |
| WO1996027044A1 (en) * | 1995-02-27 | 1996-09-06 | Sca Hygiene Paper Ab | Method for producing a spunlace material with increased wet strength and spunlace material according to the method |
| DE19640622A1 (en) * | 1996-10-01 | 1998-04-09 | Moeller Plast Gmbh | Building material and method and device for producing a building material |
| FR2781818A1 (en) * | 1998-07-31 | 2000-02-04 | Icbt Perfojet Sa | PROCESS FOR THE PRODUCTION OF A COMPLEX NON-WOVEN MATERIAL AND NEW TYPE OF MATERIAL THUS OBTAINED |
| FR2795100A1 (en) * | 1999-06-16 | 2000-12-22 | Fort James France | HYDROPHILIC COTTON PRODUCT WITH A SOFT FACE AND A SCRATCH FACE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662711B2 (en) | 1989-12-01 | 1992-08-14 | Kaysersberg Sa | NONWOOD MANUFACTURING PROCESS. |
| AU769205B2 (en) | 1998-10-23 | 2004-01-22 | Dexter Corporation, The | Nonwoven for polymer moulding applications |
-
2000
- 2000-03-07 DE DE20004553U patent/DE20004553U1/en not_active Expired - Lifetime
-
2001
- 2001-03-07 WO PCT/DE2001/000943 patent/WO2001066845A1/en not_active Ceased
- 2001-03-07 DE DE50102794T patent/DE50102794D1/en not_active Expired - Fee Related
- 2001-03-07 AT AT01916922T patent/ATE270721T1/en not_active IP Right Cessation
- 2001-03-07 EP EP01916922A patent/EP1264025B1/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655361A1 (en) * | 1989-12-01 | 1991-06-07 | Kaysersberg Sa | Process for the manufacture of hydrophilic nonwovens comprising natural fibres, in particular unbleached cotton, and the nonwovens obtained |
| GB2264512A (en) * | 1992-02-28 | 1993-09-01 | Lantor | Hydro-entangled non-woven fabric |
| WO1996006222A1 (en) * | 1994-08-22 | 1996-02-29 | Sca Hygiene Paper Ab | Nonwoven material comprising a certain proportion of recycled fibres originating from nonwoven and/or textile waste |
| WO1996009915A1 (en) * | 1994-09-26 | 1996-04-04 | Heinrich Lippert Gmbh | Tool for mechanically treating surfaces |
| WO1996027044A1 (en) * | 1995-02-27 | 1996-09-06 | Sca Hygiene Paper Ab | Method for producing a spunlace material with increased wet strength and spunlace material according to the method |
| DE19640622A1 (en) * | 1996-10-01 | 1998-04-09 | Moeller Plast Gmbh | Building material and method and device for producing a building material |
| FR2781818A1 (en) * | 1998-07-31 | 2000-02-04 | Icbt Perfojet Sa | PROCESS FOR THE PRODUCTION OF A COMPLEX NON-WOVEN MATERIAL AND NEW TYPE OF MATERIAL THUS OBTAINED |
| FR2795100A1 (en) * | 1999-06-16 | 2000-12-22 | Fort James France | HYDROPHILIC COTTON PRODUCT WITH A SOFT FACE AND A SCRATCH FACE |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2972462A1 (en) * | 2011-03-08 | 2012-09-14 | Geco Ingenierie | METHOD AND DEVICE FOR PRODUCTION OF NON-WOVEN GEOTEXTILE AND GEOTEXTILE SO PRODUCED |
| WO2012146847A1 (en) * | 2011-03-08 | 2012-11-01 | Géco Ingénierie | Method and device for producing a nonwoven geotextile, and geotextile thus produced |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50102794D1 (en) | 2004-08-12 |
| DE20004553U1 (en) | 2000-09-28 |
| EP1264025B1 (en) | 2004-07-07 |
| EP1264025A1 (en) | 2002-12-11 |
| ATE270721T1 (en) | 2004-07-15 |
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