DE29720598U1 - Non-woven fabric made from natural fibers and synthetic fibers - Google Patents
Non-woven fabric made from natural fibers and synthetic fibersInfo
- Publication number
- DE29720598U1 DE29720598U1 DE29720598U DE29720598U DE29720598U1 DE 29720598 U1 DE29720598 U1 DE 29720598U1 DE 29720598 U DE29720598 U DE 29720598U DE 29720598 U DE29720598 U DE 29720598U DE 29720598 U1 DE29720598 U1 DE 29720598U1
- Authority
- DE
- Germany
- Prior art keywords
- fibers
- nonwoven fabric
- fabric according
- bicomponent
- sheath
- 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 description 95
- 239000004745 nonwoven fabric Substances 0.000 title claims description 60
- 229920002994 synthetic fiber Polymers 0.000 title claims description 14
- 239000012209 synthetic fiber Substances 0.000 title claims description 13
- 229920000728 polyester Polymers 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 229920001634 Copolyester Polymers 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 238000007596 consolidation process Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002292 Nylon 6 Polymers 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000013518 molded foam Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 244000198134 Agave sisalana Species 0.000 claims description 2
- 240000008564 Boehmeria nivea Species 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 244000146553 Ceiba pentandra Species 0.000 claims description 2
- 235000003301 Ceiba pentandra Nutrition 0.000 claims description 2
- 244000060011 Cocos nucifera Species 0.000 claims description 2
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 2
- 240000000491 Corchorus aestuans Species 0.000 claims description 2
- 235000011777 Corchorus aestuans Nutrition 0.000 claims description 2
- 235000010862 Corchorus capsularis Nutrition 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- 240000008790 Musa x paradisiaca Species 0.000 claims description 2
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 244000274883 Urtica dioica Species 0.000 claims description 2
- 235000009108 Urtica dioica Nutrition 0.000 claims description 2
- 239000002318 adhesion promoter Substances 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- FYIBGDKNYYMMAG-UHFFFAOYSA-N ethane-1,2-diol;terephthalic acid Chemical compound OCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 FYIBGDKNYYMMAG-UHFFFAOYSA-N 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 2
- 240000006240 Linum usitatissimum Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 13
- 241000208202 Linaceae Species 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- -1 polypropylene Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- 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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
-
- 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
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
-
- 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
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/68—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions the bonding agent being applied in the form of foam
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Woven Fabrics (AREA)
Description
B/34.439/AM-asB/34.439/AM-as
Christian Heinrich Sandler GmbH & Co. KG, Lamitzmühle, 95120 SchwarzenbachChristian Heinrich Sandler GmbH & Co. KG, Lamitzmühle, 95120 Schwarzenbach
Die vorliegende Erfindung betrifft einen Vliesstoff, insbesondere ein Stabilisierungsvlies, aus Naturfasern und Kunstfasern.The present invention relates to a nonwoven fabric, in particular a stabilizing nonwoven fabric, made of natural fibers and synthetic fibers.
In vielen Bereichen der Industrie ist seit geraumer Zeit die Tendenz vorhanden, Produktion und Produkte allgemein unter größerer Berücksichtigung ökologischer Aspekte zu verwirklichen. Dies ist auch im Bereich der Vliesstoffherstellung der Fall, wo seit kurzem Untersuchungen durchgeführt werden, um die auf diesem Gebiet weit verbreiteten Glasfasern auszutauschen. Hier bieten Naturfasern als nachwachsende Rohstoffe eine Reihe besonderer Vorteile wie geringe Abrasivität, eine sehr hohe Verfügbarkeit sowie eine problemlose Entsorgung. Nachteilig ist, daß Naturfasern vergleichsweise hygroskopisch sind und auch die Haftung zwischen Naturfasern und Kunstfasern nur beschränkt ist. Es sind Vliesstoffe aus Flachsfasern und Polypropylen bekannt (K. P. Mieck, C. Knobeisdorf "Anwendungsmöglichkeiten von Naturfaserstoffen bei Verbundmaterial", Melliand Textilberichte 11/1994, Seiten 892 bis 898), bei denen die Haftung zwischen Naturfaser und Polypropylen jedoch für viele AnwendungenIn many areas of industry, there has been a tendency for some time to implement production and products in general with greater consideration of ecological aspects. This is also the case in the area of nonwovens production, where studies have recently been carried out to replace the glass fibers that are widely used in this field. Here, natural fibers as renewable raw materials offer a number of special advantages such as low abrasiveness, very high availability and easy disposal. The disadvantage is that natural fibers are relatively hygroscopic and the adhesion between natural fibers and synthetic fibers is only limited. Nonwovens made of flax fibers and polypropylene are known (K. P. Mieck, C. Knobeisdorf "Applications of natural fibers in composite materials", Melliand Textilberichte 11/1994, pages 892 to 898), where the adhesion between natural fibers and polypropylene is, however, for many applications
unzureichend ist. Desweiteren bestehen auch Probleme hinsichtlich der größeren Fähigkeit der Flachsfaser im Vergleich zur Glasfaser im Hinblick auf die mögliche Feuchtigkeitsaufnahme.is inadequate. There are also problems with the greater ability of flax fibre to absorb moisture compared to glass fibre.
Gerade das Haftvermögen zwischen Naturfasern und Kunststoffasern ist jedoch von besonderer Bedeutung, wenn derartige Artikel als Vliese, z. B. als Stabilisierungsvliese, bei der Formteilfertigung eingesetzt werden sollen. Insbesondere im Kfz-Bereich werden selbsttragende, großflächige Formteile häufig aus mehreren Schichten aufgebaut. Der typische Aufbau eines Dachhimmels besteht im allgemeinen aus einer zentralen Trägerschicht aus einem Thermo-Formschaum, aus thermisch oder mit Phenolharz verfestigten Reißspinnstoffen oder aus harzverfestigter Lignocellulose, einer ein- oder beidseitigen hochmoduligen Stabilisierungsschicht aus texilen Flächengebilden aus Hochmodulfasern, wie z. B. Aramidfasern, Kohlenstoffasern, Glasfasern oder den erwähnten Vliesstoffen aus Flachsfasern und Polypropylen sowie einer zum Fahrzeug Innenraum weisenden Dekorschicht.However, the adhesive strength between natural fibers and synthetic fibers is particularly important if such articles are to be used as nonwovens, e.g. as stabilizing nonwovens, in the production of molded parts. In the automotive sector in particular, self-supporting, large-area molded parts are often made up of several layers. The typical structure of a roof liner generally consists of a central carrier layer made of thermoformed foam, of thermally or phenolic resin-strengthened shredded fibers or of resin-strengthened lignocellulose, a one- or two-sided high-modulus stabilization layer made of textile fabrics made of high-modulus fibers, such as aramid fibers, carbon fibers, glass fibers or the aforementioned nonwovens made of flax fibers and polypropylene, as well as a decorative layer facing the vehicle interior.
Der Einsatz eines derartigen Vlieses als Stabilisierungsvlies bei der Formteilfertigung ist jedoch nicht die einzige Einsatzmöglichkeit. Weitere Einsatzbereiche sind z. B. die Verstärkung bzw. Stabilisierung von Bodenbelägen, insbesondere Teppichen oder Teppichböden. Gleiches gilt selbstverständlich auch für andere Anwendungen im Wohnbereich, wie z. B. eine mögliche Verstärkung/Stabilisierung von Wandverkleidungen und/oder -dekorationen.However, the use of such a fleece as a stabilizing fleece in the production of molded parts is not the only possible application. Other areas of application include, for example, the reinforcement or stabilization of floor coverings, especially carpets or rugs. The same naturally also applies to other applications in the home, such as the possible reinforcement/stabilization of wall coverings and/or decorations.
Während der Trägerschicht die Aufgabe der Bildung des Formkörpers zukommt und sie damit in der Lage sein muß die dreidimensionale Konturbildung zu unterstützen und die Verformbarkeit und die Formhaltigkeit zu gewährleisten, ist esWhile the carrier layer has the task of forming the molded body and must therefore be able to support the three-dimensional contour formation and ensure deformability and shape retention, it is
Aufgabe der Stabilisierungsschichtfen) die Steifheit, &zgr;. B. die VerwindungsSteifheit des Formteiles zu gewährleisten. Hierfür werden textile Flächengebilde aus Fasern mit besonders hohem E-modul eingesetzt. Aus Preisgründen fanden hier vorzugsweise Glasfasern Verwendung, wobei aber auch Aramidfasern oder Kohlenstoffasern beschrieben wurden. Der Einsatz von Vliesstoffen aus Flachsfasern und Polypropylenfasern weist die bereits zuvor erwähnten Probleme hinsichtlich der Haftfestigkeit und der Feuchtigkeitsaufnahme der Naturfasern auf, weshalb derartige Vliese auf dem vorliegenden Fachgebiet bestenfalls über eine geringe wirtschaftliche Bedeutung verfügen. Aufgabe der vorliegenden Erfindung ist es daher, einen Vliesstoff der eingangsbeschriebenen Art so weiterzubilden, daß er gegenüber dem aus dem Stand der Technik bekannten Vliesstoff verbesserte Eigenschaften aufweist, insbesondere ein besseres Haftvermögen von Naturfasern und Kunststoffasern, und wirtschaftlich herstellbar ist sowie möglichst problemlos zu entsorgen oder einer Wiederverwertung zuführbar ist.The task of the stabilizing layers is to ensure the rigidity, e.g. the torsional rigidity of the molded part. Textile fabrics made of fibers with a particularly high modulus of elasticity are used for this purpose. For cost reasons, glass fibers were preferably used here, although aramid fibers or carbon fibers have also been described. The use of nonwovens made of flax fibers and polypropylene fibers has the problems already mentioned with regard to the adhesive strength and moisture absorption of the natural fibers, which is why such nonwovens have at best little economic significance in the present field. The task of the present invention is therefore to further develop a nonwoven of the type described at the beginning in such a way that it has improved properties compared to the nonwoven known from the prior art, in particular better adhesion of natural fibers and synthetic fibers, and can be produced economically and can be disposed of as easily as possible or recycled.
Die vorstehende Aufgabe wird durch einen Vliesstoff der eingangs beschriebenen Art dadurch gelöst, daß als Kunstfasern Bikomponentenpolyamidfasern, Bikomponentenpolyesterfasern oder amorphe Polyesterklebefasern neben den Naturfasern als Bindefasern in dem Vliesstoff enthalten sind.The above object is achieved by a nonwoven fabric of the type described above in that bicomponent polyamide fibers, bicomponent polyester fibers or amorphous polyester adhesive fibers are contained as synthetic fibers in addition to the natural fibers as binding fibers in the nonwoven fabric.
Überraschenderweise hat sich gezeigt, daß durch die Verwendung von Bindefasern mit gegenüber Polyolefinen größerer Polarität, wie die genannten Polyamid- oder Polyesterbindefasern die Haftung zwischen Naturfasern und Kunststoffasern stark verbessert wird. Es wird dabei angenommen, daß die mögliche Bildung von Wasserstoffbrücken diese Adhäsion zwischen den unterschiedlichen Pasern auf molekularer Basis, d. h. zwischenSurprisingly, it has been shown that the use of binding fibers with a higher polarity than polyolefins, such as the polyamide or polyester binding fibers mentioned above, greatly improves the adhesion between natural fibers and synthetic fibers. It is assumed that the possible formation of hydrogen bonds facilitates this adhesion between the different fibers on a molecular basis, i.e. between
den Cellulose-Molekülen und den Kunststoff-Molekülen, entscheidend verstärkt.the cellulose molecules and the plastic molecules, decisively strengthened.
Eine de'rart verbesserte Adhäsion ist aber nicht nur unter den verschiedenen Faserarten festzustellen, vorteilhafterweise wird mit dem erfindungsgemäßen Vliesstoff auch eine bessere Haftung der unterschiedlichen Verbundwerkstoffe untereinander realisiert. Bei der Fertigung eines Thermo-Formschaumhimmels wird die Trägerschicht, welche beispielsweise aus Polyurethanschaum besteht, ein- oder beidseitig mittels eines entsprechenden Polyurethanklebers mit den Stabilisierungsschichten verklebt. Vergleicht man dabei die Adhäsionskräfte zwischen Trägerschicht und Stabilisierungsschicht bzw. dem Polyurethankleber, so ergibt sich auch hier eine bedeutend stärkere Adhäsionskraft des erfindungsgemäßen Vliesstoffs gegenüber dem Vliesstoff aus Flachsfasern und Polypropylenfasern. Auch hier wird die stärkere Polarität der Bindefasern im Vergleich zu den Polyolefinfasern als zumindest zur Erhöhung der Haftung beitragend angesehen.Such improved adhesion is not only evident between the different types of fiber, but the nonwoven fabric according to the invention also advantageously enables better adhesion between the different composite materials. When manufacturing a thermo-molded foam headliner, the carrier layer, which consists of polyurethane foam, for example, is bonded to the stabilizing layers on one or both sides using an appropriate polyurethane adhesive. If one compares the adhesive forces between the carrier layer and the stabilizing layer or the polyurethane adhesive, the nonwoven fabric according to the invention also has a significantly stronger adhesive force than the nonwoven fabric made of flax fibers and polypropylene fibers. Here too, the stronger polarity of the binding fibers compared to the polyolefin fibers is considered to at least contribute to increasing the adhesion.
Gegenüber mit homopolymeren Thermoplastfasern, insbesondere gegenüber mit Polypropylen verfestigten Vliesstoffen mit Naturfasern besitzt der erfindungsgemäße Vliesstoff besonders bei entsprechender Auswahl der Bindefasern auch eine wesentlich größere thermische Stabilität und Belastbarkeit, was sich insbesondere bei der Verwendung für die Formteilherstellung positiv auswirkt, da die Herstellung von stark temperaturbeständigen Formteilen möglich ist.Compared to nonwovens with homopolymer thermoplastic fibers, in particular compared to nonwovens with natural fibers consolidated with polypropylene, the nonwoven according to the invention also has a significantly greater thermal stability and resilience, especially with appropriate selection of the binding fibers, which has a positive effect in particular when used for the production of molded parts, since the production of highly temperature-resistant molded parts is possible.
In einer bevorzugten Ausgestaltung des erfindungsgemäßen Vliesstoffs sind die Bikomponentenfasern vom side-by-side-Typ oder Mantel-Kern-Typ. Hierdurch wird eine bestimmte Variationsbreite und Anpassbarkeit an verschiedensteIn a preferred embodiment of the nonwoven fabric according to the invention, the bicomponent fibers are of the side-by-side type or sheath-core type. This provides a certain range of variation and adaptability to a wide variety of
Anforderungen bei der Herstellung und/oder anschließenden Verfestigung erreicht.Requirements during production and/or subsequent solidification are achieved.
Bestehen die Bikomponentenfasern zu einem erheblichen bis wesentlichen Teil aus Bikomponentenpolyamidfasern, so ist bevorzugt, wenn diese vom Mantel-Kern-Typ sind. Vorzugsweise besteht der Kern einer derartigen Bikomponentenfaser aus Polyamid 6.6 und der Mantel aus Polyamid 6 oder einem Kern aus Polyamid 6.6 oder Polyamid 6 und einem Mantel aus einem Copolyamid.If the bicomponent fibers consist to a significant or substantial extent of bicomponent polyamide fibers, it is preferred if these are of the sheath-core type. Preferably, the core of such a bicomponent fiber consists of polyamide 6.6 and the sheath of polyamide 6 or a core of polyamide 6.6 or polyamide 6 and a sheath of a copolyamide.
In einer anderen vorteilhaften Ausgestaltung der vorliegenden Erfindung bestehen die Bikomponentenfasern bevorzugt aus Copolyester/Polyesterbikomponentenfasern, wobei bevorzugt ist, wenn es sich dabei um Fasern vom Mantel-Kern-Typ handelt, bei denen der Kern aus Polyethylenglykolterephthalat und der Mantel aus einem Copolymeren aus Ethylenglykolterephthalat und Isophthalsäure besteht.In another advantageous embodiment of the present invention, the bicomponent fibers preferably consist of copolyester/polyester bicomponent fibers, wherein it is preferred if these are fibers of the sheath-core type, in which the core consists of polyethylene glycol terephthalate and the sheath consists of a copolymer of ethylene glycol terephthalate and isophthalic acid.
Die Verfestigungstemperaturen derartiger Bindefasern sind allgemein lieferantenseitig im Bereich zwischen 100 und 205 0C einstellbar, was eine gute Anpassbarkeit der Herstellungsbedingungen an unterschiedlichste Anforderungen gewährleistet. Der Kern derartiger Fasern besitzt eine hohe Kristallinität und einen Schmelzpunkt von etwa 254 0C, wodurch eine entsprechende thermische Stabilität gewährleistet wird. Bei derartigen Bindefasern liegt die Bindekomponente der Bikomponentenfasern im allgemeinen als amorpher Copolyester vor.The solidification temperatures of such binding fibers can generally be set by the supplier in the range between 100 and 205 0 C, which ensures that the production conditions can be easily adapted to a wide variety of requirements. The core of such fibers has a high crystallinity and a melting point of around 254 0 C, which ensures corresponding thermal stability. In such binding fibers, the binding component of the bicomponent fibers is generally present as an amorphous copolyester.
Es hat sich weiterhin gezeigt, daß die thermische Beständigkeit sich vorteilhafterweise noch weiter erhöht, wenn als Bikomponentenpolyesterfaser eine Mantel-Kern-Bindefaser in dem Vlies enthalten ist, bei der Mantel und Kern jeweils aus einemIt has also been shown that the thermal resistance is advantageously increased even further if a sheath-core binding fibre is contained in the fleece as a bicomponent polyester fibre, in which the sheath and core each consist of a
«I »t tttf«I »t tttf
kristallinen Copolyester bzw. Polyester besteht. Dabei ist bevorzugt, daß der Schmelzpunkt des Mantels der Bindefaser höher als 140 0C ist, insbesondere höher als 160 0C.crystalline copolyester or polyester. It is preferred that the melting point of the sheath of the binding fiber is higher than 140 0 C, in particular higher than 160 0 C.
Da Vliesstoffe wie der erfindungsgemäße Vliesstoff allgemein weiterverarbeitet werden, erhöht sich die Handhabbarkeit beträchtlich, wenn der Vliesstoff mechanisch verfestigt ist. Es ist dabei bevorzugt, daß die mechanische Verfestigung durch Vernadeln oder durch Anwendung des Wasserstrahlverfestigungsverfahrens bewirkt wird. Daneben sind sämtliche andere Verfahren zur Herstellung bzw. Verfestigung des erfindungsgemäßen Vliesstoffs einsetzbar, die in "Vliesstoffe", Lünenschloß (Autor), Georg Thieme Verlag Stuttgart, Seiten 67 bis 103 und 122 bis 142, beschrieben sind. Insbesondere ist es auch möglich, den erfindungsgemäßen Vliesstoff thermisch zu verfestigen. Eine mechanische Vorverfestigung ist hierfür nicht zwingend erforderlich.Since nonwovens such as the nonwoven according to the invention are generally further processed, the handling is increased considerably if the nonwoven is mechanically consolidated. It is preferred that the mechanical consolidation is achieved by needling or by using the water jet consolidation process. In addition, all other processes for producing or consolidating the nonwoven according to the invention can be used, which are described in "Vliesstoffe", Lünenschloß (author), Georg Thieme Verlag Stuttgart, pages 67 to 103 and 122 to 142. In particular, it is also possible to thermally consolidate the nonwoven according to the invention. Mechanical pre-consolidation is not absolutely necessary for this.
Es ist bevorzugt, wenn der erfindungsgemäße Vliesstoff ein Flächengewicht von etwa 20 bis 1000 g/m aufweist, insbesondere 50 bis 200 g/m . Der erfindungsgemäße Vliesstoff besitzt vorzugsweise ein Bindefaseranteil von 5 bis 80 %, insbesondere 15 bis 50 %, und einen Naturfaseranteil von 95 bis 20 %, insbesondere 85 bis 50 %.It is preferred if the nonwoven fabric according to the invention has a basis weight of about 20 to 1000 g/m , in particular 50 to 200 g/m . The nonwoven fabric according to the invention preferably has a binding fiber content of 5 to 80%, in particular 15 to 50%, and a natural fiber content of 95 to 20%, in particular 85 to 50%.
Je nach den Anforderungen können auch besonders vorteilhafte Eigenschaften erreicht werden, wenn die Matrixfasern aus einer Mischung verschiedener Naturfasern oder aus einer Mischung einer oder mehrerer Naturfasern mit einer oder mehreren Kunstfasern gebildet sind.Depending on the requirements, particularly advantageous properties can also be achieved if the matrix fibers are formed from a mixture of different natural fibers or from a mixture of one or more natural fibers with one or more synthetic fibers.
Der Anwendungsbereich des erfindungsgemäßen Vliesstoffs vergrößert sich besonders, wenn derselbe weiterhin Funktionselemente wie eine thermische Verklebung ermöglichendeThe application area of the nonwoven fabric according to the invention increases particularly if it also contains functional elements such as thermal bonding
,, &igr;,, &igr;
Klebstoffe, oder Haftvermittler in Form von Fasern, Partikeln, Dispersions- oder Latexfilmen, Vliesen oder Folien, oberflächlich oder homogen vermischt enthält.Adhesives or adhesion promoters in the form of fibres, particles, dispersion or latex films, fleeces or foils, superficially or homogeneously mixed.
Die in dem erfindungsgemäßen Vliesstoff enthaltenen Naturfasern und Kunstfasern besitzen bevorzugt einen Titer von etwa 0,7 bis 28 dtex, insbesondere 1,7 bis 12 dtex, und eine Faserlänge von etwa 10 bis 200 mm, insbesondere 40 bis 80 mm. Aufgrund ihrer Eigenschaften ist es bevorzugt, wenn die Naturfasern pflanzlicher Art sind, wobei Flachs, Hanf, Sisal, Kapok, Jute, Ramie, Kokos, Nessel, Banane und dergleichen besonders bevorzugt sind.The natural fibers and synthetic fibers contained in the nonwoven fabric according to the invention preferably have a titer of about 0.7 to 28 dtex, in particular 1.7 to 12 dtex, and a fiber length of about 10 to 200 mm, in particular 40 to 80 mm. Due to their properties, it is preferred if the natural fibers are of plant origin, with flax, hemp, sisal, kapok, jute, ramie, coconut, nettle, banana and the like being particularly preferred.
Der erfindungsgemäße Vliesstoff findet insbesondere Anwendung zur Herstellung von Formteilen oder Verbundwerkstoffen, wobei ein derartiger Verbundwerkstoff wenigstens ein weiteres Material in Form eines Schaums, wie z. B. eines Polyurethan-Formschaums, einer Folie oder eines Vlieses, zusammen mit dem erfindungsgemäßen Vliesstoff aufweist.The nonwoven fabric according to the invention is used in particular for the production of molded parts or composite materials, wherein such a composite material comprises at least one further material in the form of a foam, such as a polyurethane molded foam, a film or a nonwoven, together with the nonwoven fabric according to the invention.
Bei der Verwendung von amorphen Polyesterfasern als Bindefasern lassen sich besonders stabile Vliese bzw. Formteile und/oder Verbundwerkstoffe herstellen, da derartige amorphe Polyesterfasern aufgrund ihrer amorphen Struktur beim Erhitzten ab ca. 70 0C klebrig werden und sich mit sich selbst und anderen Fasern unter Anwendung von Kraft und Wärme zur Verfestigung verbinden. Dieser Vorgang ist irreversibel, da dieser Fasertyp ab ca. 125 0C kristallisiert und dadurch einen Schmelzpunkt von ca. 254 0C erreicht.When amorphous polyester fibers are used as binding fibers, particularly stable nonwovens or molded parts and/or composite materials can be produced, since such amorphous polyester fibers become sticky when heated above approx. 70 ° C due to their amorphous structure and bond with themselves and other fibers using force and heat to solidify. This process is irreversible, since this type of fiber crystallizes at approx. 125 ° C and thus reaches a melting point of approx. 254 ° C.
Die Verwendung von derartigen, amorphen Polyesterfasern bei der Herstellung von Vliesstoffen und Formteilen mit Polymereinheitlicher Zusammensetzung ist in der EP 476 538 beschrieben. So hergestellte Vliesstoffe lassen sich jedoch inThe use of such amorphous polyester fibers in the production of nonwovens and molded parts with a polymer-uniform composition is described in EP 476 538. Nonwovens produced in this way can, however, be used in
Form von Bahnenware nur durch einen Kalander-Prozeß oder einen kalanderähnlichen Prozeß, wie der Verfestigung mittels einer Flachbettpresse, thermisch verfestigen, da sie mit oder ohne mechanische Vorverfestigung ausschließlich durch gleichzeitige Anwendung von Kraft und Wärme entsprechend thermisch verfestigt werden können.The form of web goods can only be thermally consolidated by a calendering process or a calender-like process, such as consolidation by means of a flatbed press, since they can only be thermally consolidated with or without mechanical pre-consolidation by the simultaneous application of force and heat.
Allgemein ist jedoch hervorzuheben, daß bei der Herstellung von Formteilen und/oder Verbundwerkstoffen nicht nur thermisch verfestigte Vliesstoffe eingesetzt werden können, es können auch die erfindungsgemäßen Vliesstoffe eingesetzt werden, die z. B. nur mechanisch verfestigt sind und bei denen die thermische Verfestigung erst während der Formteilverpressung oder -verklebung erfolgt. Dies hängt im wesentlichen vom gewählten Formteilherstellungsprozeß sowie den Anforderungen an den Vliesstoff und das Formteil selbst ab.In general, however, it should be emphasized that not only thermally bonded nonwovens can be used in the production of molded parts and/or composite materials, but also the nonwovens according to the invention can be used which, for example, are only mechanically bonded and in which the thermal bonding only takes place during the molded part pressing or bonding. This depends essentially on the molded part production process selected as well as the requirements for the nonwoven and the molded part itself.
Mit dem nachfolgenden Ausführungsbeispiel wird die Erfindung näher erläutert.The invention is explained in more detail with the following embodiment.
Es wird eine Fasermischung aus 70 % Flachsfaser und 30 % Copolyester/Polyester-Mantel-Kernfaser aus kristallinem Copolyester (Mantel) und kristallinem Polyester (Kern) von einer Feinheit von 4,4 dtex und einer Länge von 51 mm (Typ Melty 7080, Unitica Ltd., Osaka), hergestellt. Die Fasermischung wird gekrempelt, über einen Querleger abgelegt und in einer Nadelmaschine von oben und unten mit Einstichtiefen von 8 mm und 5 mm und einer Einstichdichte von 125 Einstichen/cm^ genadelt. Anschließend wird bei einer Temperatur von 182 0C in einem Heißluftofen thermisch verfestigt und das Vlies über kalte Kalanderwalzen geglättet und auf 2,3 mm Dicke kalibriert. Das Flächengewicht dieses Vliesstoffs beträgt 150 g/m2.A fiber mixture of 70% flax fiber and 30% copolyester/polyester sheath core fiber made of crystalline copolyester (sheath) and crystalline polyester (core) with a fineness of 4.4 dtex and a length of 51 mm (type Melty 7080, Unitica Ltd., Osaka) is produced. The fiber mixture is carded, laid over a cross-lapper and needled in a needle machine from above and below with penetration depths of 8 mm and 5 mm and a penetration density of 125 penetrations/cm^. It is then thermally bonded at a temperature of 182 0 C in a hot air oven and the fleece is smoothed over cold calender rollers and calibrated to a thickness of 2.3 mm. The basis weight of this fleece is 150 g/m 2 .
Der so erhaltene Vliesstoff wird mittels Polyurethankleber beidseitig auf eine Trägerschicht aus Polyurethan Thermo-Formschaum aufgeklebt und anschließend gleichzeitig verpreßt und verformt. Die Haftungswerte des Verbundes sind hervorragend und die thermische Stabilität gemäß einem Klima-Wechseltest von -20 bis +130 0C entspricht voll den gestellten Anforderungen.The nonwoven fabric obtained in this way is glued to a carrier layer made of polyurethane thermoformed foam on both sides using polyurethane adhesive and then pressed and formed at the same time. The adhesion values of the composite are excellent and the thermal stability according to a climate change test from -20 to +130 0 C fully meets the requirements.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29720598U DE29720598U1 (en) | 1997-11-20 | 1997-11-20 | Non-woven fabric made from natural fibers and synthetic fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29720598U DE29720598U1 (en) | 1997-11-20 | 1997-11-20 | Non-woven fabric made from natural fibers and synthetic fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29720598U1 true DE29720598U1 (en) | 1998-02-05 |
Family
ID=8048889
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29720598U Expired - Lifetime DE29720598U1 (en) | 1997-11-20 | 1997-11-20 | Non-woven fabric made from natural fibers and synthetic fibers |
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| Country | Link |
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| DE (1) | DE29720598U1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19832721A1 (en) * | 1998-07-21 | 2000-01-27 | Sandler C H Gmbh | Composite sheet for use as outer layer in an expanded foam sandwich comprises a natural fiber textile layer, an extensible layer, and a thermoplastic layer which penetrates into the other layers and acts as bonding agent |
| DE10007556C2 (en) * | 1999-07-28 | 2003-07-03 | Sandler Ag | Carrier component for molded parts |
| DE10230235A1 (en) * | 2002-07-04 | 2004-01-29 | Herbert Costard | Nonwoven semifinished product is made of natural fibres (e.g. hemp or flax) and for use in mouldings; fibres are in the main drawn, in x/y arrangement and crosslaid |
| FR2912427A1 (en) * | 2007-02-14 | 2008-08-15 | Soprema Soc Par Actions Simpli | Making non-woven fabric for reinforcing sealing membranes for use e.g. in buildings, involves forming the fabric from natural fibres and then needling, chemical- or thermal-bonding and waterproofing |
| EP2322713A1 (en) | 2009-11-11 | 2011-05-18 | Aarsen Holding B.V. | Method for producing bamboo fibres as well as plastics containing same |
| EP2338928A1 (en) | 2009-12-17 | 2011-06-29 | Ems-Patent Ag | Binding fibre for fixing flat materials containing natural fibres |
| CN102312353A (en) * | 2010-07-07 | 2012-01-11 | 稳健实业(深圳)有限公司 | Spunlaced nonwoven fabric for clothing and production method and equipment thereof |
| US20160288394A1 (en) * | 2013-12-03 | 2016-10-06 | Continental Structural Plastics, Inc. | Resin transfer molding with rapid cycle time |
| US20200122413A1 (en) * | 2013-12-03 | 2020-04-23 | Continental Structural Plastics, Inc. | Resin transfer molding with rapid cycle time |
| US11407187B2 (en) * | 2016-12-27 | 2022-08-09 | Teijin Automotive Technologies, Inc. | Continuous channel resin transfer molding with rapid cycle time |
-
1997
- 1997-11-20 DE DE29720598U patent/DE29720598U1/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19832721A1 (en) * | 1998-07-21 | 2000-01-27 | Sandler C H Gmbh | Composite sheet for use as outer layer in an expanded foam sandwich comprises a natural fiber textile layer, an extensible layer, and a thermoplastic layer which penetrates into the other layers and acts as bonding agent |
| DE10007556C2 (en) * | 1999-07-28 | 2003-07-03 | Sandler Ag | Carrier component for molded parts |
| DE10230235A1 (en) * | 2002-07-04 | 2004-01-29 | Herbert Costard | Nonwoven semifinished product is made of natural fibres (e.g. hemp or flax) and for use in mouldings; fibres are in the main drawn, in x/y arrangement and crosslaid |
| DE10230235B4 (en) * | 2002-07-04 | 2007-03-29 | Herbert Costard | Semi-finished sheet material for composite materials |
| FR2912427A1 (en) * | 2007-02-14 | 2008-08-15 | Soprema Soc Par Actions Simpli | Making non-woven fabric for reinforcing sealing membranes for use e.g. in buildings, involves forming the fabric from natural fibres and then needling, chemical- or thermal-bonding and waterproofing |
| WO2008110727A3 (en) * | 2007-02-14 | 2008-11-27 | Soprema Soc Par Actions Simpli | Method for making a reinforcement frame and sealing membrane including such frame, and products thus obtained |
| EP2322713A1 (en) | 2009-11-11 | 2011-05-18 | Aarsen Holding B.V. | Method for producing bamboo fibres as well as plastics containing same |
| EP2338928A1 (en) | 2009-12-17 | 2011-06-29 | Ems-Patent Ag | Binding fibre for fixing flat materials containing natural fibres |
| US8956986B2 (en) | 2009-12-17 | 2015-02-17 | Ems-Patent Ag | Binding fiber for bonding of flat material containing natural fibers |
| CN102312353A (en) * | 2010-07-07 | 2012-01-11 | 稳健实业(深圳)有限公司 | Spunlaced nonwoven fabric for clothing and production method and equipment thereof |
| CN102312353B (en) * | 2010-07-07 | 2014-09-10 | 稳健实业(深圳)有限公司 | Spunlaced nonwoven fabric for clothing and production method and equipment thereof |
| US20160288394A1 (en) * | 2013-12-03 | 2016-10-06 | Continental Structural Plastics, Inc. | Resin transfer molding with rapid cycle time |
| US20200122413A1 (en) * | 2013-12-03 | 2020-04-23 | Continental Structural Plastics, Inc. | Resin transfer molding with rapid cycle time |
| US11247415B2 (en) * | 2013-12-03 | 2022-02-15 | Continental Structural Plastics, Inc. | Resin transfer molding with rapid cycle time |
| US11407187B2 (en) * | 2016-12-27 | 2022-08-09 | Teijin Automotive Technologies, Inc. | Continuous channel resin transfer molding with rapid cycle time |
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