DE20004553U1 - Bast fiber nonwoven - Google Patents
Bast fiber nonwovenInfo
- Publication number
- DE20004553U1 DE20004553U1 DE20004553U DE20004553U DE20004553U1 DE 20004553 U1 DE20004553 U1 DE 20004553U1 DE 20004553 U DE20004553 U DE 20004553U DE 20004553 U DE20004553 U DE 20004553U DE 20004553 U1 DE20004553 U1 DE 20004553U1
- Authority
- DE
- Germany
- Prior art keywords
- fibers
- nonwoven fabric
- fibres
- fibre
- bast
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 79
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000004753 textile Substances 0.000 claims abstract 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 52
- 239000010410 layer Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000012792 core layer Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims 1
- 244000025254 Cannabis sativa Species 0.000 abstract description 6
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 abstract description 6
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 abstract description 6
- 235000009120 camo Nutrition 0.000 abstract description 6
- 235000005607 chanvre indien Nutrition 0.000 abstract description 6
- 239000011487 hemp Substances 0.000 abstract description 6
- 238000009950 felting Methods 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 description 7
- 238000007596 consolidation process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- -1 filtration fleeces Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
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
- D04H1/40—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
-
- 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
Landscapes
- 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
Bastfaservliesstoff - „Aqua-Bast-Fiber-Felt"Bast fiber non-woven fabric - “Aqua-Bast-Fiber-Felt”
Vliesstoffe aus Naturfasern werden in unterschiedlichsten Anwendungen eingesetzt. Naturfasern besitzen sehr geringe Reibungskräfte der Fasern untereinander. Es müssen daher entweder sehr hochwertige Fasern großer Länge und Reinheit eingesetzt werden oder die Naturfasern werden in Mischungen mit Trägerfasern verarbeitet.Nonwovens made from natural fibers are used in a wide variety of applications. Natural fibers have very low friction forces between the fibers. Therefore, either very high-quality fibers of great length and purity must be used or the natural fibers must be processed in mixtures with carrier fibers.
In Bezug auf die Verfestigungstechnologie lassen sich Naturfaservliesstoffe derzeit in hauptsächlich zwei Kategorien aufteilen. Mechanisch, meist durch Vernadelung, verfestigte Vliesstoffe und, nach Zugabe von Bindemitteln oder Bindefasern, thermisch verfestigte Vliesstoffe.In terms of bonding technology, natural fiber nonwovens can currently be divided into two main categories: mechanically bonded nonwovens, usually by needling, and thermally bonded nonwovens after the addition of binders or bonding fibers.
Naturfaservliese zur mechanischen Verfestigung müssen relativ lange Fasern beinhalten. Zudem sollten die Fasern frei von Fremd- und Reststoffen sein, um das Verfestigungsaggregat nicht zu beschädigen. Eine Verarbeitung von kürzeren Fasern ist nur unter Zugabe von in der Regel synthetischen Trägerfasern möglich. Die Verwendung von meist groben Bastfasern führt zu technologischen Problemen während der Vliesbildung und der Verfestigung, so daß hierfür bisher keine technischen Lösungen existieren.Natural fiber fleeces for mechanical bonding must contain relatively long fibers. In addition, the fibers should be free of foreign matter and residues in order not to damage the bonding unit. Processing of shorter fibers is only possible with the addition of carrier fibers, usually synthetic. The use of mostly coarse bast fibers leads to technological problems during the formation of the fleece and bonding, so that no technical solutions exist for this to date.
DE 94 22 147 U1 beschreibt einen Mehrschichtkörper, welcher aus verschiedenen Schichten von Vliesstoffen besteht, welche Naturfasern, Kunststoffasern und Glasfasern enthalten können. Die für die Schichten verwendeten Vliesstoffe werden einzeln durch Vernadeln verfestigt. Durch Nadelbruch verbleiben in vernadelten Vliesstoffen unvermeidlich Nadelspitzen und sonstige metallische Nadelpartikel zurück. Diese können zu teilweise erheblichen Problemen in nachfolgenden Verarbeitungsschritten führen.DE 94 22 147 U1 describes a multilayer body consisting of various layers of nonwovens, which can contain natural fibers, synthetic fibers and glass fibers. The nonwovens used for the layers are individually bonded by needling. Needle breakage inevitably leaves needle points and other metallic needle particles in needled nonwovens. These can sometimes lead to significant problems in subsequent processing steps.
Thermisch verfestigte Naturfaservliesstoffe 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 einer Mischung mit thermoplastischen Bindefasern verarbeitet. Die Zuführung von Wärme aktiviert das Bindemittel bzw. führt zum Aufschmelzen der Bindefasern und dadurch zur Verfestigung des Vlieses.Thermally bonded natural fiber nonwovens offer the advantage that shorter fibers can also be used. The fibers are provided with a binding agent before, during or after the fleece is laid or processed in a mixture with thermoplastic binding fibers. The addition of heat activates the binding agent or causes the binding fibers to melt and thus to the bonding of the fleece.
Ein solcher Vliesstoff wird in DE 196 02 551 C1 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 Weiterverwendung der Vliesstoffe nicht möglich. Zudem kann das Freiwerden evtl. von zur Bindung eingesetzten Chemikalien während des Gebrauchs nicht ausgeschlossen werden. Gleiches gilt für die in DE 31 50 547 A1 beschriebene Formmasse auf Basis thermoplastischer Kunstharze.Such a nonwoven fabric is described in DE 196 02 551 C1. The mat shown consists of a fiber mixture of natural and thermoplastic binding fibers. A cover layer made of thermoplastic fibers is also used. The use of binding fibers or binders means that the nonwoven fabrics cannot be reused in their original form. In addition, the release of chemicals used for binding during use cannot be ruled out. The same applies to the molding compound based on thermoplastic synthetic resins described in DE 31 50 547 A1.
Der erfindungsgemäße Vliesstoff besteht vorzugsweise aus reinen Bastfasern und wird mit Fluidstrahler vorzugsweise Wasserstrahlen verfestigt, wobei Produktionsreststoffe wie Faserstäube, Kleinpartikel und Kurzfasem im Vliesstoff angeordnet werden können und dort im Gegensatz zu herkömmlichen Vliesstoffen zu einer Eigenschaftsverbesserung führen.The nonwoven fabric according to the invention preferably consists of pure bast fibers and is consolidated with a fluid jet, preferably water jets, whereby production residues such as fiber dust, small particles and short fibers can be arranged in the nonwoven fabric and lead to an improvement in properties there, in contrast to conventional nonwoven fabrics.
Ziel der Erfindung ist ein Vliesstoff aus Bastfasern, hergestellt nach bekannten Verfahren, vorzugsweise geringer Länge mit einem hohen Anteil an Reststoffen aus dem Faseraufschluß, wie Kurzfasern, Faserstäube, und sonstigen Faserbegleitsubstanzen, vorzugsweise als Einstoffsystem.The aim of the invention is a nonwoven fabric made of bast fibers, produced according to known processes, preferably of short length with a high proportion of residual materials from the fiber pulping, such as short fibers, fiber dust, and other fiber accompanying substances, preferably as a single-material system.
Die technische Aufgabe besteht in der Schaffung eines Vliesstoffes aus Bastfasern (7), welche einen hohen Anteil an Reststoffen aus dem Faseraufschluß, wie Kurzfasern (5), Faserstäube (4), und sonstige Faserbegleitsubstanzen beinhalten und zu einem günstigen Preis hergestellt und bezogen werden können. Die Vlieslegung kann mechanisch, aerodynamisch oder hydrodynamisch erfolgen, die Verfestigung des Vlieses erfolgt vorzugsweise durch Wasserstrahlverfestigung. Die im Flächenbildungs- und Verfestigungsprozeß entstehenden Reststoffe, wie Kurzfasern (5), Faserstäube (4), etc. werden dem Flächengebilde zusammen mit bereits verfestigten Vliespartikeln (6), welche zerkleinert und dem Prozeß entsprechend konfektioniert sind, vor, während oder nach der Verfestigung zugeführt und im Vliesstoff so angeordnet, daß im Gegensatz zu derzeitigen Verfahren eine positive Wirkung auf die Eigenschaften des Vliesstoffes erzielt werden kann.The technical task is to create a nonwoven fabric from bast fibers (7) which contains a high proportion of residual materials from the fiber processing, such as short fibers (5), fiber dust (4), and other fiber-accompanying substances, and which can be manufactured and purchased at a reasonable price. The nonwoven fabric can be laid mechanically, aerodynamically, or hydrodynamically, and the nonwoven fabric is preferably consolidated by water jet consolidation. The residual materials created in the surface formation and consolidation process, such as short fibers (5), fiber dust (4), etc., are fed to the surface structure together with already consolidated nonwoven particles (6), which are shredded and made up according to the process, before, during, or after consolidation, and are arranged in the nonwoven fabric in such a way that, in contrast to current processes, a positive effect on the properties of the nonwoven fabric can be achieved.
Wasserstrahlverfestigte Vliesstoffe aus vorzugsweise groben Bastfasern kurzer Länge wurden bisher als nicht herstellbar angesehen, da Bastfasern schlechte Verarbeitungseigenschaften durch die schlechte Verschlingung der Fasern besitzen. Der erfindungsgemäße Vliesstoff nutzt die sehr guten Verfilzungseigenschaften der Bastfasern, besonders bei Verwendung von groben Fasern mit großem Streubereich hinsichtlich der Feinheit. Die Verfilzung wird durch die Anordnung der Produktionsreststoffe weiter verstärkt.Water jet-bonded nonwovens made from preferably coarse bast fibers of short length were previously considered impossible to produce, since bast fibers have poor processing properties due to the poor intertwining of the fibers. The nonwoven fabric according to the invention uses the very good felting properties of the bast fibers, especially when using coarse fibers with a large range of fineness. The felting is further increased by the arrangement of the production residues.
Der Vliesstoff besteht vorzugsweise aus einer Kernschicht (2) und kann Deckschichten (1) und (3) besitzen. Die Kernschicht besteht vorzugsweise aus Bastfasern (7). Der Kernschicht können auch andere Fasern, wie thermoplastische Bindefasern, Glasfasern, Mineralfasern oder weitere synthetische und natürliche Fasersorten beigemischt werden. In der Kernschicht sind die Kurzfasern (5), Faserstäube (4) und sonstigen Faserbegleitsubstanzen so angeordnet, daß sie zur Verfilzung und somit zur Verfestigung des Vliesstoffes beitragen. Das Flächengewicht des Vliesstoffes kann zwischen 30 und 3000 g/m2, die Reißfestigkeit zwischen 100 und 25000 N/m eingestellt werden.The nonwoven fabric preferably consists of a core layer (2) and can have cover layers (1) and (3). The core layer preferably consists of bast fibers (7). Other fibers, such as thermoplastic binding fibers, glass fibers, mineral fibers or other synthetic and natural fiber types, can also be mixed into the core layer. The short fibers (5), fiber dust (4) and other fiber-accompanying substances are arranged in the core layer in such a way that they contribute to felting and thus to the strengthening of the nonwoven fabric. The basis weight of the nonwoven fabric can be set between 30 and 3000 g/m 2 , the tear strength between 100 and 25000 N/m.
Die Deckschichten können ebenfalls aus Flächengebilden, wie z.B. Vliesstoffen, Geweben oder Gewirken, bestehen, welche Bastfasern (7) oder Mischungen von Bastfasern mit anderen natürlichen oder synthetischen Fasersorten beinhalten. Selbstverständlich sind auch Kombinationen aus mehreren Schichten der beschriebenen Art möglich.The cover layers can also consist of flat structures, such as nonwovens, wovens or knitted fabrics, which contain bast fibers (7) or mixtures of bast fibers with other natural or synthetic fibers. Of course, combinations of several layers of the type described are also possible.
Durch die Verfestigung mittels Fluidstrahl kann ausgeschlossen werden, daß Fremdpartikel, wie abgebrochene Nadelspitzen bei der Verfestigung durch Vernadeln, welche für die weitere Verarbeitung nachteilig sind, im Flächengebilde enthalten sind.By solidifying using a fluid jet, it can be excluded that foreign particles, such as broken needle tips during solidification by needling, which are disadvantageous for further processing, are contained in the fabric.
Der erfindungsgemäße Vliesstoff besitzen eine Flächenmasse von 30 bis 3000 g/m2, eine.dichte bis offene Struktur und zeichnet sich durch hohe Reißfestigkeit aus. Der vorzugsweise Aufbau aus reinen Bastfasern eröffnet eine große Palette anThe nonwoven fabric according to the invention has a mass per unit area of 30 to 3000 g/m 2 , a dense to open structure and is characterized by high tear resistance. The preferred structure of pure bast fibers opens up a wide range of
Anwendungen z.B. als Material zur Wandbekleidung, als Element eines Baustoff-Systems, zur Herstellung von diffusionsoffenen Dämmstoffen, Beschichtungsträgem, Filtrationsvliesstoffen, Geotextilien, Wischtüchern, Teppichgründen,Applications e.g. as a material for wall cladding, as an element of a building material system, for the production of vapour-permeable insulation materials, coating substrates, filtration fleeces, geotextiles, wipes, carpet backings,
Armierungsvliesstoffe und als Halbzeug zur Herstellung von Formteilen.Reinforcing nonwovens and as semi-finished products for the production of molded parts.
Vliesstoff, bestehend aus Hanffasem mit hohem Anteil an Reststoffen aus dem Faseraufschluß, hergestellt ohne Zusatz von Bindemitteln oder anderen Fasern und verfestigt nach der Wasserstrahltechnologie. Die Flächenmasse beträgt 50 g/m2, die Reißfestigkeit in Längsrichtung 600 N/m, die Reißfestigkeit in Querrichtung 300 N/m bei einer Dicke von 0,8 mm. Der Vliesstoff ist vornehmlich geeignet als Beschichtungsträger, z.B. in Kombination mit Harzsystemen aus nachwachsenden Rohstoffen als umweltverträgliches Verpackungsmaterial oder als Schicht eines Sandwichmaterials.Nonwoven fabric consisting of hemp fibers with a high proportion of residual materials from fiber processing, manufactured without the addition of binding agents or other fibers and solidified using water jet technology. The basis weight is 50 g/m 2 , the tear strength in the longitudinal direction is 600 N/m, the tear strength in the transverse direction is 300 N/m with a thickness of 0.8 mm. The nonwoven fabric is primarily suitable as a coating carrier, e.g. in combination with resin systems made from renewable raw materials as an environmentally friendly packaging material or as a layer of a sandwich material.
Vliesstoff aus Hanffasern, hergestellt ohne Zusatz von Bindemitteln und sonstigen Fasern und verfestigt mittels Wasserstrahlen. Die Flächenmasse beträgt 300 g/m2 bei einer Dicke von 1,5 mm und einer Reißfestigkeit in Längsrichtung von 7000 N/m und in Querrichtung von 5000 N/m. Durch die hohe Verdichtung des Vliesstoffes in der Wasserstrahlverfestigung ist der Vliesstoff besonders geeignet als Dämmvlies in Holzfußbodensystemen.Nonwoven fabric made from hemp fibers, manufactured without the addition of binding agents or other fibers and consolidated using water jets. The weight per unit area is 300 g/m 2 with a thickness of 1.5 mm and a tear strength of 7000 N/m in the longitudinal direction and 5000 N/m in the transverse direction. Due to the high compression of the nonwoven fabric in the water jet consolidation, the nonwoven fabric is particularly suitable as an insulating fleece in wooden floor systems.
Vliesstoff wie in Ausführungsbeispiel 2. Durch besondere Steuerung des Verfestigungsprozesses oder durch Aggregate nach der Verfestigung wird der Vliesstoff mit einer definierten Oberflächenstruktur versehen. Der solchermaßen strukturierte Vliesstoff findet insbesondere Anwendung als Bastfasertapete zur WandbekleidungNonwoven fabric as in Example 2. By special control of the consolidation process or by aggregates after consolidation, the nonwoven fabric is provided with a defined surface structure. The nonwoven fabric structured in this way is used in particular as bast fiber wallpaper for wall coverings
Vliesstoff, bestehend aus einer Mischung von 50% Hanffasem und 50% PET-Bikomponentenfasern, welcher durch Wasserstrahlen verfestigt ist. Der 2,5 mm dicke Vliesstoff besitzt eine Reißfestigkeit von 11000 N/m im Längs- bzw. 8000 N/m in Querrichtung. Durch Aktivierung der Bikomponentenfasern im Trocknungsprozeß kann die Reißfestigkeit weiter erhöht werden. Dadurch ist eine spezielle Eignung als Verstärkungsvliesstoff gegebenNonwoven fabric consisting of a mixture of 50% hemp fibers and 50% PET bicomponent fibers, which is consolidated by water jets. The 2.5 mm thick nonwoven fabric has a tear strength of 11000 N/m in the longitudinal direction and 8000 N/m in the transverse direction. The tear strength can be further increased by activating the bicomponent fibers in the drying process. This makes it particularly suitable as a reinforcing nonwoven fabric
Vliesstoff, bestehend aus einer Mischung von 50% Hanffasern und 50% Polypropylenfasern, welcher durch Wasserstrahlen verfestigt ist. Die guten mechanischen Eigenschaften des Vliesstoffes, Reißfestigkeit von 11000 N/m im Längs- bzw. 8000 N/m in Querrichtung, führen zu einer guten Umformbarkeit in Thermoformprozessen zur Herstellung von naturfaserverstärkten Bauteilen.Nonwoven fabric consisting of a mixture of 50% hemp fibers and 50% polypropylene fibers, which is consolidated by water jets. The good mechanical properties of the nonwoven fabric, tear strength of 11,000 N/m in the longitudinal direction and 8,000 N/m in the transverse direction, lead to good formability in thermoforming processes for the production of natural fiber-reinforced components.
Vliesstoff aus Hanffasern, verfestigt durch Wasserstrahlen, hergestellt ohne Zusatz von Bindemitteln oder anderen Fasern. Die Dicke des Vliesstoffes beträgt 4 mm, die Flächenmasse 1500 g/m2, die Reißfestigkeit in Längsrichtung 18000 N/m und in Querrichtung 15000 N/m. Die sehr hohe Naßreißfestigkeit des Vliesstoffes ermöglicht den Einsatz in Spezialfiltem z.B. zur Aufnahme von Schwermetallen in Klärschlammfiltration. Weitere Anwendungen sind Dämmaterialien und die Herstellung von Plattenstrukturen.Nonwoven fabric made of hemp fibers, consolidated by water jets, produced without the addition of binding agents or other fibers. The thickness of the nonwoven fabric is 4 mm, the mass per unit area is 1500 g/m 2 , the tear strength in the longitudinal direction is 18000 N/m and in the transverse direction 15000 N/m. The very high wet tear strength of the nonwoven fabric enables it to be used in special filters, eg for the absorption of heavy metals in sewage sludge filtration. Other applications include insulation materials and the production of panel structures.
• · · . .· · . .
Claims (6)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20004553U DE20004553U1 (en) | 2000-03-07 | 2000-03-07 | Bast fiber nonwoven |
| 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 |
| PCT/DE2001/000943 WO2001066845A1 (en) | 2000-03-07 | 2001-03-07 | Textile fabric consisting of natural fibres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20004553U DE20004553U1 (en) | 2000-03-07 | 2000-03-07 | Bast fiber nonwoven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20004553U1 true DE20004553U1 (en) | 2000-09-28 |
Family
ID=7938640
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20004553U Expired - Lifetime DE20004553U1 (en) | 2000-03-07 | 2000-03-07 | Bast fiber nonwoven |
| DE50102794T Expired - Fee Related DE50102794D1 (en) | 2000-03-07 | 2001-03-07 | Textile fabrics made of natural fibers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE50102794T Expired - Fee Related DE50102794D1 (en) | 2000-03-07 | 2001-03-07 | Textile fabrics made of natural fibers |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1264025B1 (en) |
| AT (1) | ATE270721T1 (en) |
| DE (2) | DE20004553U1 (en) |
| WO (1) | WO2001066845A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| WO2008107664A1 (en) * | 2007-03-05 | 2008-09-12 | Eco Technilin Limited | Plant fibre mat and method of making a plant fibre mat |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2972462B1 (en) * | 2011-03-08 | 2013-03-08 | Geco Ingenierie | METHOD AND DEVICE FOR PRODUCING NON-WOVEN GEOTEXTILE AND GEOTEXTILE SO PRODUCED |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253397A (en) | 1989-12-01 | 1993-10-19 | Kaysersberg, S.A. | Hydroentangling manufacturing method for hydrophilic non-wovens comprising natural fibers, in particular of unbleached cotton |
| WO2000024955A1 (en) | 1998-10-23 | 2000-05-04 | Dexter Corporation | Nonwoven for polymer moulding applications |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655361B1 (en) * | 1989-12-01 | 1992-02-28 | Kaysersberg Sa | PROCESS FOR THE MANUFACTURE OF HYDROPHILIC NONWOVEN FABRICS COMPRISING NATURAL FIBERS, PARTICULARLY ECRON COTTON, NONWOVEN PRODUCTS OBTAINED. |
| GB2264512A (en) * | 1992-02-28 | 1993-09-01 | Lantor | Hydro-entangled non-woven fabric |
| SE503272C2 (en) * | 1994-08-22 | 1996-04-29 | Moelnlycke Ab | Nonwoven material prepared by hydroentangling a fiber web and method for making such nonwoven material |
| JP3146261B2 (en) * | 1994-09-26 | 2001-03-12 | リツペルトーユニポール ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Tools for mechanical surface treatment |
| SE514726C2 (en) * | 1995-02-27 | 2001-04-09 | Sca Hygiene Prod Ab | Process for the production of hydroentangled nonwoven material with increased wet strength and material prepared by the process |
| DE19640622C2 (en) * | 1996-10-01 | 1998-11-12 | Moeller Plast Gmbh | Building material and method and device for producing a building material |
| FR2781818B1 (en) * | 1998-07-31 | 2000-09-01 | Icbt Perfojet Sa | PROCESS FOR THE PRODUCTION OF A COMPLEX NON-WOVEN MATERIAL AND NEW TYPE OF MATERIAL THUS OBTAINED |
| FR2795100B1 (en) * | 1999-06-16 | 2001-09-14 | Fort James France | HYDROPHILIC COTTON PRODUCT WITH A SOFT FACE AND A SCRATCHING FACE |
-
2000
- 2000-03-07 DE DE20004553U patent/DE20004553U1/en not_active Expired - Lifetime
-
2001
- 2001-03-07 WO PCT/DE2001/000943 patent/WO2001066845A1/en active IP Right Grant
- 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253397A (en) | 1989-12-01 | 1993-10-19 | Kaysersberg, S.A. | Hydroentangling manufacturing method for hydrophilic non-wovens comprising natural fibers, in particular of unbleached cotton |
| WO2000024955A1 (en) | 1998-10-23 | 2000-05-04 | Dexter Corporation | Nonwoven for polymer moulding applications |
Cited By (4)
| 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 |
| WO2002050357A1 (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 |
| WO2008107664A1 (en) * | 2007-03-05 | 2008-09-12 | Eco Technilin Limited | Plant fibre mat and method of making a plant fibre mat |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50102794D1 (en) | 2004-08-12 |
| EP1264025A1 (en) | 2002-12-11 |
| EP1264025B1 (en) | 2004-07-07 |
| ATE270721T1 (en) | 2004-07-15 |
| WO2001066845A1 (en) | 2001-09-13 |
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