WO2003078713A2 - Textile reinforcement - Google Patents
Textile reinforcement Download PDFInfo
- Publication number
- WO2003078713A2 WO2003078713A2 PCT/DE2003/000706 DE0300706W WO03078713A2 WO 2003078713 A2 WO2003078713 A2 WO 2003078713A2 DE 0300706 W DE0300706 W DE 0300706W WO 03078713 A2 WO03078713 A2 WO 03078713A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intermediate layer
- fibers
- textile reinforcement
- dtex
- textile
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
Definitions
- the invention relates to a textile reinforcement according to the preamble of the main claim.
- This textile reinforcement can be used for the production of molded parts from composite material or articles with such a reinforcement, at least two textile reinforcement layers being provided, which are arranged on both sides of an intermediate layer which defines the thickness of the product.
- This intermediate layer or non-woven layer consists of a layer of synthetic fibers that have a permanent corrugation, so that the intermediate layer is a light, thick and air-containing layer.
- the different layers are connected to each other by sewing or knitting.
- Such so-called sandwich constructions serve as reinforcement in the glass fiber plastic area, in particular in the so-called RT process (resin transfer molding), in which the highest possible resin flow through the intermediate layer and good drapability, that is to say the possibility of shaping the reinforcement, is sought.
- the corrugated fibers forming the intermediate layer should have a fiber fineness of at least 30 dtex.
- fibers with a fiber fineness of 40 dtex are proposed and in practice fibers with a fiber fineness of 70 and 110 dtex are processed. These fibers are partially structurally pressed through on the surface of the laminates and there is an unwanted surface structure, to avoid which a particularly dense surface fleece must be used as a textile cover layer. These very dense surface fleeces are expensive.
- the desired resin permeability can only be achieved if these fibers have a fiber fineness of more than 40, preferably 70 to 100 dtex. However, the use of these fibers still forms a relatively high resistance to the good flow of resin.
- EP 0 586 924 B1 describes a multilayer composite material which is to be produced using fibers which are to have a helical texturing. It cannot be inferred from this reference that these
- Fibers should only be used in a middle layer of the composite material in order to achieve an almost structureless smooth surface of the end product, but on the other hand to ensure a good resin flow.
- the invention has for its object to propose a textile reinforcement in which an almost structurally smooth surface of the laminates can be achieved without the use of the relatively expensive surface nonwovens and in which an excellent resin flow is ensured without an increase in the weight per unit area being necessary.
- This object on which the invention is based is achieved by the teaching of the main claim.
- a synthetic fiber be used that has a spiral or helical texturing so that the fiber fineness can be kept below 30 dtex.
- This design results in a lower resistance to the resin flow and ensures the required volume with sufficient pressure resistance without increasing the basis weight.
- the fibers of the intermediate layer preferably have a fiber fineness of 25 dtex.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a textile reinforcement for producing a composite material comprising an upper and a lower textile coating and a voluminous, light, porous intermediate layer that is placed between said upper and lower coating. The coatings are connected to the intermediate layer which is formed by synthetic fibers having a fiber fineness of less than 30 dtex, said fibers being provided with a spiral-shaped or helix-shaped texture.
Description
"Textile Armierung""Textile reinforcement"
Die Erfindung bezieht sich auf eine textile Armierung gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a textile reinforcement according to the preamble of the main claim.
Eine gattungsbildende textile Armierung ist in der EP 0 395 548A generic textile reinforcement is in EP 0 395 548
B1 beschrieben. Diese textile Armierung ist für die Herstellung von Formteilen aus Verbundstoff oder Artikeln mit einer solchen Armierung verwendbar, wobei wenigstens zwei textile Verstärkungsschichten vorgesehen sind, die beiderseits einer die Dicke des Produktes vorgebenden Zwischenschicht angeordnet sind.B1 described. This textile reinforcement can be used for the production of molded parts from composite material or articles with such a reinforcement, at least two textile reinforcement layers being provided, which are arranged on both sides of an intermediate layer which defines the thickness of the product.
Diese Zwischenschicht oder Vliesschicht besteht aus einer Lage synthetischer Fasern, die eine dauerhafte Wellung aufweisen, so dass die Zwischenschicht eine leichte, dicke und lufthaltige Schicht darstellt. Die verschiedenen Schichten sind untereinan- der durch vernähen oder verstricken verbunden. Derartige sogenannte Sandwichkonstruktionen dienen als Armierung im Glas- faserkunststoffbereicht, insbesondere in dem sogenannten RT -Verfahren (resin transfer moulding), bei dem ein höchst möglicher Harzfluss durch die Zwischenschicht und eine gute Drapierfähigkeit, d. h. also Formgebungsmöglichkeit der Armierung angestrebt wird.
Die die Zwischenschicht bildenden gewellten Fasern sollen gemäß der gattungsbildenden Literaturstelle eine Faserfeinheit von wenigstens gleich 30 dtex aufweisen. In dem in dieser Literatur- stelle erläuterten Ausführungsbeispiel werden aber Fasern mit einer Faserfeinheit von 40 dtex vorgeschlagen und in der Praxis werden Fasern mit einer Faserfeinheit von 70 und 110 dtex verarbeitet. Diese Fasern drücken sich zum Teil strukturell an der Oberfläche der Laminate durch und es erfolgt eine nicht gewollte Oberflächenstruktur, zu deren Vermeidung ein besonders dichtes Oberflächenvlies als textile Deckschicht eingesetzt werden muss. Diese sehr dichten Oberflächenvliese sind kostenaufwendig.This intermediate layer or non-woven layer consists of a layer of synthetic fibers that have a permanent corrugation, so that the intermediate layer is a light, thick and air-containing layer. The different layers are connected to each other by sewing or knitting. Such so-called sandwich constructions serve as reinforcement in the glass fiber plastic area, in particular in the so-called RT process (resin transfer molding), in which the highest possible resin flow through the intermediate layer and good drapability, that is to say the possibility of shaping the reinforcement, is sought. According to the generic literature reference, the corrugated fibers forming the intermediate layer should have a fiber fineness of at least 30 dtex. In the exemplary embodiment explained in this reference, however, fibers with a fiber fineness of 40 dtex are proposed and in practice fibers with a fiber fineness of 70 and 110 dtex are processed. These fibers are partially structurally pressed through on the surface of the laminates and there is an unwanted surface structure, to avoid which a particularly dense surface fleece must be used as a textile cover layer. These very dense surface fleeces are expensive.
Werden Fasern, die eine wellenförmige Texturierung aufweisen, eingesetzt, kann die angestrebte Harzdurchlässigkeit nur erreicht werden, wenn diese Fasern eine Faserfeinheit von mehr als 40 vorzugsweise 70 bis 100 dtex aufweisen. Der Einsatz dieser Fasern bilden aber immer noch einen relativ hohen Wider- stand gegen den guten Harzfluss.If fibers that have a wavy texturing are used, the desired resin permeability can only be achieved if these fibers have a fiber fineness of more than 40, preferably 70 to 100 dtex. However, the use of these fibers still forms a relatively high resistance to the good flow of resin.
In der EP 0 586 924 B1 wird ein mehrschichtiges Verbundmaterial beschrieben, das unter Verwendung von Fasern hergestellt werden soll, die eine schraubenförmige Texturierung aufweisen sollen. Dieser Literaturstelle ist nicht zu entnehmen, daß dieseEP 0 586 924 B1 describes a multilayer composite material which is to be produced using fibers which are to have a helical texturing. It cannot be inferred from this reference that these
Fasern lediglich in einer Mittelschicht des Verbundmaterials verwendet werden sollen, um so eine nahezu strukturlose glatte Oberfläche des Endproduktes zu erreichen, andererseits aber einen guten Harzfluß sicherzustellen.Fibers should only be used in a middle layer of the composite material in order to achieve an almost structureless smooth surface of the end product, but on the other hand to ensure a good resin flow.
Der Erfindung liegt die Aufgabe zugrunde, eine textile Armierung vorzuschlagen, bei der eine nahezu strukturlose glatte Oberfläche der Laminate erreichbar ist ohne den Einsatz der relativ kostenaufwendigen Oberflächenvliese und bei der ein vorzüglicher Harzfluss sichergestellt ist, ohne dass eine Erhöhung des Flächengewichtes erforderlich ist.
Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.The invention has for its object to propose a textile reinforcement in which an almost structurally smooth surface of the laminates can be achieved without the use of the relatively expensive surface nonwovens and in which an excellent resin flow is ensured without an increase in the weight per unit area being necessary. This object on which the invention is based is achieved by the teaching of the main claim.
Mit anderen Worten ausgedrückt, wird vorgeschlagen, dass als synthetische Fasern eine Faserart zur Anwendung kommt, die eine spiral- oder wendeiförmige Texturierung aufweist, so dass dadurch die Faserfeinheit unter 30 dtex gehalten werden kann.In other words, it is proposed that a synthetic fiber be used that has a spiral or helical texturing so that the fiber fineness can be kept below 30 dtex.
Durch diese Ausbildung wird ein geringerer Widerstand gegen den Harzfluss erreicht und das erforderliche Volumen mit ausreichender Druckbeständigkeit ohne Erhöhung des Flächengewichtes sichergestellt.This design results in a lower resistance to the resin flow and ensures the required volume with sufficient pressure resistance without increasing the basis weight.
Vorzugsweise weisen die Fasern der Zwischenschicht eine Faserfeinheit von 25 dtex auf.
The fibers of the intermediate layer preferably have a fiber fineness of 25 dtex.
Claims
1. Textile Armierung zur Herstellung von Verbundmaterial mit einer oberen und einer unteren textilen Deckschicht und einer dazwischen angeordneten voluminösen, leichten und durchlässigen Zwischenschicht, wobei die Deckschichten mit der Zwischenschicht verbunden sind, dadurch gekennzeichnet, dass die Zwischenschicht aus synthetischen Fasern mit einer Faserfeinheit von unter 30 dtex aufgebaut ist und die Fasern eine spiral- oder wendeiförmige1. Textile reinforcement for the production of composite material with an upper and a lower textile cover layer and a voluminous, light and permeable intermediate layer arranged therebetween, the cover layers being connected to the intermediate layer, characterized in that the intermediate layer is made of synthetic fibers with a fiber fineness of below 30 dtex is built up and the fibers are spiral or helical
Texturierung aufweisen.Have texturing.
2. Textile Armierung nach Anspruch 1 , gekennzeichnet durch eine Faserfeinheit für die Zwischenschicht von 25 dtex. 2. Textile reinforcement according to claim 1, characterized by a fiber fineness for the intermediate layer of 25 dtex.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10211175.8 | 2002-03-14 | ||
| DE2002111175 DE10211175C1 (en) | 2002-03-14 | 2002-03-14 | Textile reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003078713A2 true WO2003078713A2 (en) | 2003-09-25 |
| WO2003078713A3 WO2003078713A3 (en) | 2003-12-04 |
Family
ID=27815626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2003/000706 WO2003078713A2 (en) | 2002-03-14 | 2003-03-06 | Textile reinforcement |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10211175C1 (en) |
| WO (1) | WO2003078713A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2036701B1 (en) | 2007-09-11 | 2012-10-03 | Perick Management GmbH | Layered structure and method and device for manufacturing a layered structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2218999A1 (en) * | 1973-02-26 | 1974-09-20 | Brochier & Fils | Textile-based wall covering material - with transparent plastic film covering relief face of fabric |
| EP0395548A1 (en) * | 1989-04-28 | 1990-10-31 | ETABLISSEMENTS LES FILS D'AUGUSTE CHOMARAT & CIE. Société Anonyme | Textil reinforcement for making moulded composite materials and articles with reinforcement |
| EP0586924A1 (en) * | 1992-08-21 | 1994-03-16 | Kimberly-Clark Corporation | Nonwoven multicomponent polymeric fabric and method for making same |
| EP0694643A1 (en) * | 1994-07-21 | 1996-01-31 | ETABLISSEMENT LES FILS D'AUGUSTE CHOMARAT & CIE | Textile reinforcement fabric for the manufacture of composite materials |
| US5667882A (en) * | 1995-06-02 | 1997-09-16 | Etablissements Les Fils D'auguste Chomarat Et Cie | Textile reinforcement which can be used for producing composite materials |
-
2002
- 2002-03-14 DE DE2002111175 patent/DE10211175C1/en not_active Expired - Fee Related
-
2003
- 2003-03-06 WO PCT/DE2003/000706 patent/WO2003078713A2/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2218999A1 (en) * | 1973-02-26 | 1974-09-20 | Brochier & Fils | Textile-based wall covering material - with transparent plastic film covering relief face of fabric |
| EP0395548A1 (en) * | 1989-04-28 | 1990-10-31 | ETABLISSEMENTS LES FILS D'AUGUSTE CHOMARAT & CIE. Société Anonyme | Textil reinforcement for making moulded composite materials and articles with reinforcement |
| EP0586924A1 (en) * | 1992-08-21 | 1994-03-16 | Kimberly-Clark Corporation | Nonwoven multicomponent polymeric fabric and method for making same |
| EP0694643A1 (en) * | 1994-07-21 | 1996-01-31 | ETABLISSEMENT LES FILS D'AUGUSTE CHOMARAT & CIE | Textile reinforcement fabric for the manufacture of composite materials |
| US5667882A (en) * | 1995-06-02 | 1997-09-16 | Etablissements Les Fils D'auguste Chomarat Et Cie | Textile reinforcement which can be used for producing composite materials |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10211175C1 (en) | 2003-11-13 |
| WO2003078713A3 (en) | 2003-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19738433B4 (en) | Textile fabric | |
| DE69216145T2 (en) | Method for producing a self-supporting filter unit and self-supporting filter unit | |
| DE69918683T2 (en) | HEADLINING MATERIAL WITH POLYESTER AND NON-POLYESTER LAYERS | |
| DE2753559C2 (en) | Laminated body made of two layers of base materials with pores or spaces | |
| DE69729936T2 (en) | HIGH PRECISION FILTER | |
| DE19939227A1 (en) | Composite | |
| EP1510334B1 (en) | Fiber laminate and method of producing a fiber laminate | |
| EP1264561B2 (en) | Nonwoven material and process of manufacturing | |
| DE212010000141U1 (en) | Composite mold with improved mold surface | |
| DE3206072A1 (en) | METHOD FOR PRODUCING WOVEN LAMINATES | |
| EP2585190B1 (en) | Method for producing a filtering element and filter element | |
| DE4407097C2 (en) | Textile goods and composite material made from them | |
| DE102005001354A1 (en) | Loudspeaker membrane comprising composite paper material and an elastic foamed plastic material, e.g. in polyurethane foam useful for conversion of electrical energy fluctuations into acoustic energy and having decreased weight | |
| DE202012000284U1 (en) | Prefabricated laminated modular element for floors | |
| WO2003078713A2 (en) | Textile reinforcement | |
| DE602004010675T2 (en) | VEHICLE PLATE WITH REINFORCEMENT LOCATION | |
| DE69400134T2 (en) | Textile reinforcement insert used for the production of composite materials | |
| DE19953717C2 (en) | Fiber mat | |
| DE102012220979A1 (en) | Flexible layer with at least one regular structure made of carbon fibers useful in a component, preferably an interior part of a vehicle interior, an airbag flap or a hinge for the airbag flap | |
| DE102014017809B4 (en) | Process for producing a structural component | |
| DE102018115121A1 (en) | Manufacturing process for resin composite panels | |
| EP2338677A1 (en) | Method for producing a composite sheet, in particular for use for vehicle seat covers | |
| DE102017115179A1 (en) | Method of forming three-dimensional patterns using a double raschel knitted fabric | |
| DE20200250U1 (en) | Textile reinforcement | |
| EP3819115A1 (en) | Wire cloth layer and method of making a multilayered product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): BR CA JP US ZA |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |