DE20012275U1 - Stiffening material - Google Patents
Stiffening materialInfo
- Publication number
- DE20012275U1 DE20012275U1 DE20012275U DE20012275U DE20012275U1 DE 20012275 U1 DE20012275 U1 DE 20012275U1 DE 20012275 U DE20012275 U DE 20012275U DE 20012275 U DE20012275 U DE 20012275U DE 20012275 U1 DE20012275 U1 DE 20012275U1
- Authority
- DE
- Germany
- Prior art keywords
- material according
- stiffening material
- web
- stiffening
- surface structures
- 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
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- 239000000463 material Substances 0.000 title claims description 81
- 239000000835 fiber Substances 0.000 claims description 26
- 239000004744 fabric Substances 0.000 claims description 15
- 229920003002 synthetic resin Polymers 0.000 claims description 14
- 239000000057 synthetic resin Substances 0.000 claims description 14
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 239000002759 woven fabric Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 7
- 239000004753 textile Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- D04H1/54—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
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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
- D04H1/54—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
- D04H1/559—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 the fibres being within layered webs
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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
- D04H13/00—Other non-woven fabrics
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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- B32B2262/0253—Polyolefin fibres
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- B32B2305/10—Fibres of continuous length
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- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/38—Meshes, lattices or nets
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Description
Textec Construct GmbHTextec Construct GmbH
Technische Textilien und WerkstoffeTechnical textiles and materials
Heideweg 3Heideweg 3
32805 Horn-Bad Meinberg32805 Horn-Bad Meinberg
TCOl07TCOl07
VersteifungsmaterialStiffening material
Die Erfindung betrifft ein Versteifungsmaterial aus mindestens zwei Materialien mit unterschiedlichen Erweichungspunkten. The invention relates to a stiffening material made of at least two materials with different softening points.
Aus der DE 38 25 046 sind textile Flächengebilde bekannt, die als Versteifungsmaterial eingesetzt werden. Die Flächenmaterialien bestehen aus einem Grundmaterial, das ein- oder beidseitig mit Schlaufen versehen ist, die mit einem thermoplastischen oder duroplastischen Harz imprägniert sind.Textile fabrics that are used as stiffening material are known from DE 38 25 046. The fabrics consist of a base material that has loops on one or both sides that are impregnated with a thermoplastic or thermosetting resin.
TC0107 Seite 2TC0107 Page 2
Ebenso ist es aus der DE 35 21 479 bekannt, ein Garn aus synthetischen vororientierten, unverstreckten Filamenten zur Herstellung eines verformbaren Flächengebildes einzusetzen. Die Filamente werden vor dem Weben, Stricken oder Wirken einer Wärmebehandlung unterzogen. Das Garn läßt sich dann wegen der Erhöhung der Fließspannung ohne Gefahr einer unbeabsichtigten Verstreckung verarbeiten und das auf diese Weise hergestellte textile Flächengebilde kann dann, beispielsweise durch Tiefziehen, bleibend verformt werden.It is also known from DE 35 21 479 to use a yarn made of synthetic pre-oriented, undrawn filaments to produce a deformable fabric. The filaments are subjected to heat treatment before weaving, knitting or warp knitting. The yarn can then be processed without the risk of unintentional stretching due to the increase in yield stress, and the textile fabric produced in this way can then be permanently deformed, for example by deep drawing.
In der DE 38 01 020 wird ein gewebtes, gewirktes oder gestricktes textiles unverharztes Flächengebilde aus teilweise vorverstreckten synthetischen Filamentgarnen beschrieben, das eine permanente dreidimensionale, durch eine mechanische Wärmeformverstreckung der Filamentgarne erzielte Strukturierung aufweist.DE 38 01 020 describes a woven, knitted or crocheted textile non-resinous fabric made of partially pre-stretched synthetic filament yarns, which has a permanent three-dimensional structuring achieved by mechanical heat-forming of the filament yarns.
Die bekannten Materialien sind für viele Einsatzgebiete der Technik mit den gegebenen Eigenschaften nicht ausreichend.The known materials are not sufficient for many technical applications with their given properties.
Es stand die Aufgabe, ein flächenförmiges, mehrlagiges Versteifungsmaterial zu schaffen, das hohe Festigkeitswerte aufweist und mit einer einfachen Technologie herzustellen ist.The task was to create a sheet-like, multi-layer stiffening material that has high strength values and can be produced using simple technology.
Die Aufgabe wird durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst.The problem is solved by the features of the characterizing part of claim 1.
Erfindungsgemäß besteht das Versteifungsmaterial aus mindestens zwei Materialien mit unterschiedlichen Erweichungspunkten, wobei das/die Material/ien mit höherem Erweichungspunkt das Material mit dem niederen Erweichungspunkt umhül-1/en. Dabei werden zum einen Polymerenmaterialien mit niederem Erweichungspunkt in Form von Fasern mit Polymeren-According to the invention, the stiffening material consists of at least two materials with different softening points, whereby the material(s) with a higher softening point envelops the material with the lower softening point. On the one hand, polymer materials with a low softening point in the form of fibers with polymer
TCO107 Seite 3TCO107 Page 3
material/ien in Form von Fasern mit höherem Erweichungspunkt umgeben, daraus glatte Vliese, Gestricke, Gewebe u. ä. hergestellt und diese unter Anwendung von Wärme u./o. Druck zum erfindungsgetnäßen dreidimensionalen Versteifungsmaterial verformt. Bei der Bildung des dreidimensionalen Versteifungsmaterials werden die umhüllenden Fasern an die innenliegenden Fasern durch deren Erweichung fixiert ohne das ein Ankleben am Formwerkzeug erfolgt.material(s) in the form of fibers with a higher softening point, from which smooth fleeces, knits, fabrics, etc. are produced and these are shaped into the three-dimensional stiffening material according to the invention using heat and/or pressure. When the three-dimensional stiffening material is formed, the enveloping fibers are fixed to the inner fibers by softening them without sticking to the mold.
Bei einer anderen Variante besteht das Versteifuhgsmaterial aus mindestens drei übereinanderliegenden bahnenförmigen Flächengebilden aus Polymeren, wobei das Material der Mittelschicht einen niedrigeren Erweichungspunkt besitzt, als die äußeren Schichten und die nach dem Zusammenfügen der Flächengebilde verformt werden.In another variant, the stiffening material consists of at least three superimposed sheet-like polymer structures, whereby the material of the middle layer has a lower softening point than the outer layers and which are deformed after the sheet structures are joined together.
Die vorzugsweise unverharzten Flächengebilde werden kontinuierlich oder Diskontinuierlich unter Anwendung von Wärme und/oder Druck verformt. Dabei werden die glatten bahnenförmigen Flächengebilde zu einem dreidimensionalen Versteifungsmaterial verformt. Bei der Verformung erweicht das Material der Mittelschicht leicht ohne zu fließen und eine gewisse Fixierung der Außenschichten tritt ein.The preferably non-resinous surface structures are deformed continuously or discontinuously using heat and/or pressure. The smooth sheet-like surface structures are deformed into a three-dimensional stiffening material. During deformation, the material of the middle layer softens slightly without flowing and a certain fixation of the outer layers occurs.
Nach der Verformung erhält man das profilierte Versteifungsmaterial, das je nach Art der Verformungseinrichtung tiefgezogene Näpfchen oder Kegelstümpfe mit runden oder polygonalem Querschnitt oder anders ausgebildete geometrische Strukturen aufweist. Die Näpfchen oder anders ausgestalteten geometrischen Strukturen können in Reihe oder aber in jeder anderen beliebigen Weise angeordnet sein. Die ausgestalteten Strukturen weisen eine Höhe bis zu 20 mm auf.After forming, the profiled stiffening material is obtained, which, depending on the type of forming device, has deep-drawn cups or truncated cones with a round or polygonal cross-section or other geometric structures. The cups or other geometric structures can be arranged in a row or in any other desired manner. The formed structures have a height of up to 20 mm.
TC0107 Seite 4TC0107 Page 4
Die Flächengebilde aus Polymeren bestehen aus Geweben, Vliesen, Gestricken, Gittern u. ä. Vorzugsweise wird für die Mittelschicht ein Flächengebilde mit Gitterstruktur eingesetzt, ebenso ist aber auch der Einsatz von Vliesen möglich. Der Vorteil einer Gitterstruktur gegenüber einem Vlies ist der, dass eine große Durchlässigkeit für Kunstharze und Luft bei der Weiterverarbeitung des erfindungsgemäßen Versteifungsmaterials gegeben ist. Werden Vliese an Stelle des Gitters eingesetzt, so ist die Durchlässigkeit für die Kunstharze und die Luft schlechter.The polymer fabrics consist of woven fabrics, fleeces, knits, grids, etc. A fabric with a grid structure is preferably used for the middle layer, but the use of fleeces is also possible. The advantage of a grid structure over a fleece is that it allows a high level of permeability for synthetic resins and air during further processing of the stiffening material according to the invention. If fleeces are used instead of the grid, the permeability for synthetic resins and air is poorer.
Wird die Durchlässigkeit durch Einsatz von Vliesen" mit weniger Fasern/Fläche erzwungen, so leidet darunter die Festigkeit des erfindungsgemäßen Versteifungsmaterials.If the permeability is enforced by using nonwovens with fewer fibers/area, the strength of the stiffening material according to the invention suffers.
Das Material der äußeren Schichten oder Fasern kann aus gleichen oder verschiedenen Polymeren bestehen.The material of the outer layers or fibers can consist of the same or different polymers.
Selbstverständlich können die Polymere auch in unterschiedlicher Ausgestaltung wie Gewirke oder Gestricke u. a. eingesetzt werden. Die Auswahl richtet sich nach dem jeweiligen späteren Einsatzgebiet des erfindungsgemäßen Versteifungsmaterials .Of course, the polymers can also be used in different designs such as knitted or woven fabrics, etc. The selection depends on the respective subsequent application area of the stiffening material according to the invention.
Als Polymere für die zum Einsatz gelangenden Fasern, Gewebe, Vliese, Gestricke, Gitter u. ä. eignen sich besonders Thermoplaste, wie Polyester, Polyolefine und Polyamide.Thermoplastics such as polyesters, polyolefins and polyamides are particularly suitable as polymers for the fibres, fabrics, fleeces, knits, grids, etc. used.
Neben der schwachen Fixierung der einzelnen Fasern bzw Flächengebilde beim Zusammenführen der einzelnen Fasern bzw bandförmigen Materialien vor der Verformung bzw. bei der Verformung zu dem erfindungsgemäßen Versteifungsmaterial allein durch Erweichung der Mittelschicht bzw der umhüllten Fasern kann die Fixierung auch durch zusätzlich aufgetragene geringe Mengen an Kunstharzen unterstützt werden.In addition to the weak fixation of the individual fibers or flat structures when bringing together the individual fibers or band-shaped materials before deformation or during deformation to form the stiffening material according to the invention solely by softening the middle layer or the coated fibers, the fixation can also be supported by additionally applied small amounts of synthetic resins.
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Die Fixierung der Flächengebilde allein durch aufgetragene sehr geringe Mengen an Kunstharzen zu erreichen, ist ebenfalls möglich.It is also possible to fix the surface structures simply by applying very small amounts of synthetic resins.
Dabei können alle oder aber nur das die untere und/oder obere Schicht bildende Flächengebilde oder nur die Mittelschicht vor deren Zusammenführung mit Kunstharz versehen werden.All or only the surface structure forming the lower and/or upper layer or only the middle layer can be provided with synthetic resin before they are joined together.
Werden Fasern mit niederem Erweichungspunkt mit Fasern mit einem höheren Erweichungspunkt umhüllt, um daraus Vliese, Gewebe, Gestricke herzustellen, so können auch hier beide Fasermaterialien oder aber nur ein Fasermaterial mit sehr, geringen Mengen an Kunstharzen versehen werden.If fibres with a low softening point are coated with fibres with a higher softening point in order to produce nonwovens, woven fabrics or knitted fabrics, both fibre materials or only one fibre material can be provided with very small amounts of synthetic resins.
Bei einer anderen Variante wird das Kunstharz erst im Moment der Zusammenführung der einzelnen bahnenförmigen Flächengebilde zugegeben.In another variant, the synthetic resin is only added at the moment the individual sheet-like structures are brought together.
Die Menge des Kunstharzes wird in jedem Falle so gewählt, dass nur eine leichte Fixierung der einzelnen Fasern oder bahnenförmigen Flächengebilde zum erfindungsgemäßen Versteifungsmaterial erreicht wird. Es muss dabei darauf geachtet werden, dass eine offene Struktur bei dem erzeugten Versteifungsmaterial erhalten bleibt, die für die Weiterverarbeitung notwendig ist.The amount of synthetic resin is always chosen so that only a slight fixation of the individual fibers or sheet-like structures to the stiffening material according to the invention is achieved. Care must be taken to ensure that an open structure is retained in the stiffening material produced, which is necessary for further processing.
Wenn bisher von der Zusammenführung von drei bahnförmigen Flächengebilden oder zwei unterschiedlichen Fasermaterialien zu dem erfindungsgemäßen Versteifungsmaterial gesprochen wurde, so liegt es im Rahmen der Erfindung, mehr als drei bahnenförmige Flächengebilde bzw mehr als zwei unterschiedliche Fasermaterialien zusammenzuführen.If we have previously spoken of combining three web-shaped surface structures or two different fiber materials to form the stiffening material according to the invention, it is within the scope of the invention to combine more than three web-shaped surface structures or more than two different fiber materials.
TC0107 Seite 6TC0107 Page 6
Aufgrund der Möglichkeiten in der Wahl der Polymere, der Ausgestaltung der Flächengebilde und der Endform werden den jeweiligen Anforderungen optimal angepasste Versteifungsmaterialien für den gewünschten Einsatzzweck zur Verfügung gestellt.Due to the possibilities in the choice of polymers, the design of the surface structures and the final shape, stiffening materials are made available that are optimally adapted to the respective requirements for the desired application.
Zur Herstellung der erfindungsgemäßen Versteifungsmaterialien werden entweder die die Außenschichten bildenden bahnförmigen Flächengebilde auf die Mittelschicht aufkaschiert, wobei die Aufkaschierung bei Temperaturen erfolgt, bei der die Mittelschicht erweicht aber nicht fließt und eine leichte Fixierung der Außenbahnen erreicht . wird oder die innenliegenden Fasern mit niederem Erweichungspunkt werden von Fasern mit höherem Erweichungspunkt vollständig umhüllt und daraus Vliese, Gestricke bzw. Gewebe hergestellt ohne dass schon hier eine Fixierung durch Verkleben der unterschiedlichen Fasern erfolgt. .To produce the stiffening materials according to the invention, either the web-like surface structures forming the outer layers are laminated onto the middle layer, with the lamination taking place at temperatures at which the middle layer softens but does not flow and a slight fixation of the outer webs is achieved. Or the inner fibers with a low softening point are completely covered by fibers with a higher softening point and nonwovens, knitted fabrics or woven fabrics are produced from them without fixation by gluing the different fibers.
Das so erhaltene Material wird in einer Verformungsanlage in die gewünschte Form gebracht.The material thus obtained is formed into the desired shape in a forming machine.
Eine mögliche Verformung des Materials könnte in einer Richtung senkrecht zur ursprünglichen Ebene des Materials erfolgen. Die Verformungen in Gestalt von Noppen, Stegen u. ä. weisen bei dieser Art der Verformung eine neue Ebene auf, die parallel zur ursprünglichen Ebene des Ausgangsmaterials verläuft.A possible deformation of the material could occur in a direction perpendicular to the original plane of the material. With this type of deformation, the deformations in the form of knobs, webs, etc. have a new plane that runs parallel to the original plane of the starting material.
Bei der Verformung weist die Verformungseinrichtung in der Regel die Temperatur auf, die ein Erweichen der Materialien mit dem niederen Erweichungpunkt ermöglicht und damit eine ausreichende Fixierung der eingesetzten Materialien aneinander erfolgt.During deformation, the deformation device is usually at a temperature that allows softening of the materials with the low softening point and thus ensures sufficient fixation of the materials used to one another.
TCO107 Seite 7TCO107 Page 7
Bei einer anderen Variante zur Herstellung des Versteifungsmaterials unter Verwendung von bahnförmigen Flächengebilden werden die die Außenschichten bildenden bahnförmigen Flächengebilde und die Mittelschicht bei Normaltemperatur zusammengeführt und die Fixierung durch Erweichung der Mittelschicht erfolgt erst in der Verformungseinrichtung, in der Temperaturen herrschen, die ein Erweichen des Materials der Mittelschicht ermöglichen.In another variant for producing the stiffening material using web-shaped flat structures, the web-shaped flat structures forming the outer layers and the middle layer are brought together at normal temperature and the fixing by softening of the middle layer only takes place in the deformation device in which temperatures prevail which enable softening of the material of the middle layer.
Wird mit einer Kunstharzbindung gearbeitet, kann ebenfalls eines der beiden vorgenannten Verfahren zum Einsatz gelangen. .: .'.-.■■ ■ . ■If a synthetic resin bond is used, one of the two aforementioned methods can also be used. .: .'.-.■■ ■ . ■
Durch die Anzahl, die Form, die räumliche Anordnung und die Größe der Verformungen kann ebenfalls Einfluss auf die Festigkeit des erhaltenen Versteifungsmaterials genommen werden. .The number, shape, spatial arrangement and size of the deformations can also influence the strength of the resulting stiffening material.
Das erfindungsgemäße Versteifungsmaterial besitzt den weiteren Vorteil, dass es sich räumlich verformen läßt und so auch zur Herstellung nichtplaner flächenförmiger Körper geeignet ist. Das erfindungsgemäße Versteifungsmaterial kann direkt auf Modelle aufgelegt werden und dann nach Zugabe von Kunstharzen oder anderen Bindemitteln durch Aushärtung in die gewünschte Endform gebracht werden.The stiffening material according to the invention has the further advantage that it can be deformed spatially and is therefore also suitable for the production of non-planar, flat bodies. The stiffening material according to the invention can be placed directly on models and then, after adding synthetic resins or other binding agents, can be brought into the desired final shape by hardening.
Die Erfindung soll nachfolgend anhand der beigefügten Figuren näher erläutert werden.The invention will be explained in more detail below with reference to the accompanying figures.
Figuren 1 und 2 zeigen in perspektivischer Ansicht mögliche dreidimensionale Strukturierungen des erfindungsgemäßen Versteifungsmaterials.Figures 1 and 2 show, in perspective view, possible three-dimensional structuring of the stiffening material according to the invention.
Figur 3 zeigt in perspektivischer Ansicht den Aufbau des erfindungsgemäßen Versteifungsmaterials.Figure 3 shows a perspective view of the structure of the stiffening material according to the invention.
TC0107 Seite 8TC0107 Page 8
Figur 4 zeigt das erfindungsgemäße Versteifungsmaterial hergestellt aus einem Gewebe, das aus Fasern mit unterschiedlichen Erweichungspunkten besteht, vor der Verformung .Figure 4 shows the stiffening material according to the invention made from a fabric consisting of fibers with different softening points, before deformation.
Figur 5 zeigt das Material gemäß Figur 4 nach der Verformung. Figure 5 shows the material according to Figure 4 after deformation.
Wie in Figur 3 gezeigt, wird das erfindungsgemäße Versteifungsmaterial 1 durch Zusammenführen der oberen und unteren Flächengebilde 3; 5 und der Mittelschicht 4 erhalten. Die Mittelschicht 4 weist vorzugsweise eine Gitterstruktur auf und besteht aus einem Material, das einen Erweichungspunkt besitzt, der niedriger liegt, als beim Material, das die Außenschichten bildet.As shown in Figure 3, the stiffening material 1 according to the invention is obtained by combining the upper and lower sheet structures 3; 5 and the middle layer 4. The middle layer 4 preferably has a lattice structure and consists of a material that has a softening point that is lower than that of the material that forms the outer layers.
Das die Mittelschicht 4 bildende Material wird vor der Zusammenführung der einzelnen Flächengebilde auf eine Temperatur erhitzt, dass deren Oberfläche leicht erweicht. Damit wird im Moment der Zusammenführung der einzelnen Flächengebilde deren gegenseitige Fixierung erreicht.The material forming the middle layer 4 is heated to a temperature before the individual sheet structures are brought together so that their surface softens slightly. This ensures that the individual sheet structures are mutually fixed at the moment they are brought together.
Das so erhaltene bahnenförmige Material wird in einer Verforraungseinrichtung in gewünschter Weise dreidimensional unter Wärmezufuhr und/oder Druck verformt. Die Wärmezufuhr wird so gesteuert, dass zwar ein leichtes Erweichen der Oberfläche des Materials der Mittelschicht 4 erfolgt, aber ein Fließen vermieden wird.The web-like material thus obtained is deformed in a deformation device in the desired three-dimensional manner by applying heat and/or pressure. The heat supply is controlled in such a way that the surface of the material of the middle layer 4 softens slightly, but flow is avoided.
Figur 5 zeigt das erfindungsgemäße Versteifungsmaterial, das aus einem Gewebe 6, wie in Figur 4 gezeigt, geformt wurde, bei dem eine Faser mit niederem Erweichungspunkt vollständig von Fasern mit höherem Erweichungspunkt umhüllt ist. Die Umhüllung muss so vollständig sein, dass zwar eineFigure 5 shows the stiffening material according to the invention, which was formed from a fabric 6 as shown in Figure 4, in which a fiber with a low softening point is completely covered by fibers with a higher softening point. The covering must be so complete that a
TC0107 Seite 9TC0107 Page 9
Fixierung der äußeren Fasern an der inneren Faser erfolgt, ein Verkleben der inneren Fasern mit der Verformungseinrichtung aber vermieden wird.Fixation of the outer fibers to the inner fiber takes place, but adhesion of the inner fibers to the deformation device is avoided.
Während des Verformungsvorganges wird durch das gleichzeitige Anschmelzen der Fasern aneinander eine Dehnung erreicht, die nach der Abkühlung zur Erhöhung der Steifigkeit des erfindungsgemäßen Versteifungsmaterials 1 beiträgt.During the deformation process, the simultaneous melting of the fibers to one another results in an elongation which, after cooling, contributes to increasing the stiffness of the stiffening material 1 according to the invention.
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Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE20012275U DE20012275U1 (en) | 2000-07-10 | 2000-07-10 | Stiffening material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE20012275U DE20012275U1 (en) | 2000-07-10 | 2000-07-10 | Stiffening material |
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DE20012275U1 true DE20012275U1 (en) | 2001-01-11 |
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DE20012275U Expired - Lifetime DE20012275U1 (en) | 2000-07-10 | 2000-07-10 | Stiffening material |
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DE10216781A1 (en) * | 2002-04-15 | 2003-10-23 | Glove Tec Gmbh | Body protection skin has carrier layer and padding layer applied on carrier layer |
US8918919B2 (en) | 2002-08-30 | 2014-12-30 | W. L. Gore & Associates, Inc. | Infrared-reflecting covering material |
EP3453738B1 (en) * | 2016-05-02 | 2025-07-02 | Nissan Motor Co., Ltd. | Fiber-reinforced resin molded article and method for manufacturing same |
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DE3521479C1 (en) | 1985-06-14 | 1987-01-02 | Neckelmann Kaj Synt Fiber | Use of a yarn for the production of a deformable surface structure |
DE3801020C1 (en) | 1988-01-12 | 1989-07-13 | Textec Textil Engineering Und Consulting Gmbh, 1000 Berlin, De | |
DE3610029C2 (en) | 1986-03-25 | 1989-12-07 | Fa. Carl Freudenberg, 6940 Weinheim, De | |
DE69023822T2 (en) | 1989-06-29 | 1996-05-09 | Picardie Lainiere | Textile material for reinforcement inserts. |
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DE3521479C1 (en) | 1985-06-14 | 1987-01-02 | Neckelmann Kaj Synt Fiber | Use of a yarn for the production of a deformable surface structure |
DE3610029C2 (en) | 1986-03-25 | 1989-12-07 | Fa. Carl Freudenberg, 6940 Weinheim, De | |
DE3801020C1 (en) | 1988-01-12 | 1989-07-13 | Textec Textil Engineering Und Consulting Gmbh, 1000 Berlin, De | |
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DE10216781A1 (en) * | 2002-04-15 | 2003-10-23 | Glove Tec Gmbh | Body protection skin has carrier layer and padding layer applied on carrier layer |
US8918919B2 (en) | 2002-08-30 | 2014-12-30 | W. L. Gore & Associates, Inc. | Infrared-reflecting covering material |
EP3453738B1 (en) * | 2016-05-02 | 2025-07-02 | Nissan Motor Co., Ltd. | Fiber-reinforced resin molded article and method for manufacturing same |
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