EP0852631B1 - Process for manufacturing a flat element with interrupted multifilaments - Google Patents

Process for manufacturing a flat element with interrupted multifilaments Download PDF

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Publication number
EP0852631B1
EP0852631B1 EP97922852A EP97922852A EP0852631B1 EP 0852631 B1 EP0852631 B1 EP 0852631B1 EP 97922852 A EP97922852 A EP 97922852A EP 97922852 A EP97922852 A EP 97922852A EP 0852631 B1 EP0852631 B1 EP 0852631B1
Authority
EP
European Patent Office
Prior art keywords
filaments
interrupted
flat element
pct
individual filaments
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
Application number
EP97922852A
Other languages
German (de)
French (fr)
Other versions
EP0852631A1 (en
Inventor
Gert Wagener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saertex GmbH and Co KG
Original Assignee
Saertex Wagener GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saertex Wagener GmbH filed Critical Saertex Wagener GmbH
Publication of EP0852631A1 publication Critical patent/EP0852631A1/en
Application granted granted Critical
Publication of EP0852631B1 publication Critical patent/EP0852631B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/105—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2414—Structurally defined web or sheet [e.g., overall dimension, etc.] including fringe

Definitions

  • the invention relates to a method of manufacture of a surface element made of unidirectional filaments the preamble of the main claim.
  • a generic method is from US-A-5 018 255 known. These are not unidirectional filaments, form the directional thread layers, but by one "Mat” consisting of two continuous, crosswise arranged arrangements Yarns placed on a moving conveyor and then needled.
  • the invention further relates to a surface element according to the preamble of claim 5.
  • the reinforcement filaments can be made of Glass, carbon, aramid or other synthetic materials.
  • the excellent strength properties of such Reinforcement surfaces made from directional filaments However, they have the disadvantage that the reinforcing surface is deformed before or during further processing is difficult. The used ones leave a direct deformation Filaments in many cases don't.
  • a reinforcement for matrix systems is known from WO-A-97 04946 became known by means of sewn fabrics made of glass fibers will be produced.
  • a correspondingly formed surface element is claimed 5 explained.
  • the invention proposes the filaments from the defined layers of thread interrupt in a post-treatment process, d. H. by means of needling the defined filament extension to interrupt. This interruption happens completely irregular, similar to that known in the professional world Schappe spinning process.
  • the aftertreatment can also only in some areas and also take place with different levels of intensity.
  • the method according to the invention is particularly suitable for carbon filaments, because cut fiber mats with uniform cut fiber distribution are conceivable here in very high sqm weights from the available filament thicknesses.
  • the product according to the invention also represents mats with outstandingly uniform fiber distribution even with relatively light basis weights from 300 g / m 2 .
  • the invention relates to monofilaments and Multifilaments depending on the application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

PCT No. PCT/DE97/00784 Sec. 371 Date May 6, 1998 Sec. 102(e) Date May 6, 1998 PCT Filed Apr. 17, 1997 PCT Pub. No. WO97/48845 PCT Pub. Date Dec. 24, 1997The invention proposes to provide interrupted individual filaments by a subsequent treatment in a flat element made of aligned filaments. Also disclosed is a process for manufacturing a flat structure useful as a reinforcing surface in a building element made of a composite material with aligned layers of individual filaments. The invention provides for individual filaments to be interrupted by a subsequent treatment.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Flächenelementes aus unidirektionalen Filamenten gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a method of manufacture of a surface element made of unidirectional filaments the preamble of the main claim.

Ein gattungsbildendes Verfahren ist aus der US-A-5 018 255 bekannt. Hierbei handelt es sich nicht um unidirektionale Filamente, die gerichtete Fadenlagen ausbilden, sondern um eine "Matte" aus zwei kontinuierlichen, kreuzweise verteilt angeordneten Garnen, die auf einen sich bewegenden Förderer abgelegt und anschließend vernadelt werden.A generic method is from US-A-5 018 255 known. These are not unidirectional filaments, form the directional thread layers, but by one "Mat" consisting of two continuous, crosswise arranged arrangements Yarns placed on a moving conveyor and then needled.

Die Erfindung bezieht sich weiterhin auf ein Flächenelement gemäß dem Oberbegriff des Anspruches 5.The invention further relates to a surface element according to the preamble of claim 5.

Für hoch zu belastende Kunststoffteile sind unidirektionale Filamente bzw. Armierungsfilamente mit gerichteten Fadenlagen in bestimmten Winkeln, beispielsweise 0°, 90°, + 45°, - 45° oder anderen Winkeln bekannt. Die Armierungsfilamente können aus Glas, Carbon, Aramid oder anderen synthetischen Stoffen bestehen. Die hervorragenden Festigkeitseigenschaften derartiger, aus gerichteten Filamenten hergestellten Armierungsflächen weisen jedoch den Nachteil auf, daß eine Umformung der Armierungsfläche vor oder während der Weiterverarbeitung schwierig ist. Eine direkte Verformung lassen die eingesetzten Filamente in vielen Fällen nicht zu.For high-stress plastic parts are unidirectional Filaments or reinforcement filaments with oriented layers of thread at certain angles, for example 0 °, 90 °, + 45 °, - 45 ° or known at other angles. The reinforcement filaments can be made of Glass, carbon, aramid or other synthetic materials. The excellent strength properties of such Reinforcement surfaces made from directional filaments However, they have the disadvantage that the reinforcing surface is deformed before or during further processing is difficult. The used ones leave a direct deformation Filaments in many cases don't.

Aus der WO - A - 97 04946 ist eine Armierung für Matrixsysteme bekanntgeworden, die mittels vernähter Gelege aus Glasfasern hergestellt wird.A reinforcement for matrix systems is known from WO-A-97 04946 became known by means of sewn fabrics made of glass fibers will be produced.

Ausgehend von der gattungsbildenden US-A-5 018 255 liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zu schaffen, mit dem Flächenelemente aus gerichteten Filamentlagen trotzdem und ggf. nur bereichsweise eine gute Verformbarkeit aufweisen.Starting from the generic US-A-5 018 255 is the Invention based on the object to provide a method with the surface elements made of directional filament layers anyway and possibly only have good ductility in some areas.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object of the invention is achieved by Teaching of the main claim solved.

Ein entsprechend ausgebildetes Flächenelement wird im Anspruch 5 erläutert.A correspondingly formed surface element is claimed 5 explained.

Mit anderen Worten ausgedrückt wird mit der Erfindung vorgeschlagen, die Filamente aus den definiert angeordneten Fadenlagen in einem Nachbehandlungsprozeß zu unterbrechen, d. h. durch eine Nadelung die definiert angeordnete Filamenterstreckung zu unterbrechen. Diese Unterbrechung geschieht völlig unregelmäßig, ähnlich dem in der Fachwelt bekannten Schappe-Spinnverfahren.In other words, the invention proposes the filaments from the defined layers of thread interrupt in a post-treatment process, d. H. by means of needling the defined filament extension to interrupt. This interruption happens completely irregular, similar to that known in the professional world Schappe spinning process.

Die Nachbehandlung kann dabei auch nur bereichsweise und auch bereichsweise mit unterschiedlicher Intensität erfolgen.The aftertreatment can also only in some areas and also take place with different levels of intensity.

Dabei werden unterschiedliche Filamentlängen geschaffen, wobei die im noch nicht vernadelten Vorprodukt gebildeten Basis orientierungen in steuerbaren Anteilen erhalten bleiben. Gleichzeitig wird durch die Aufhebung des reinen Endloscharakters der Filamente eine Dehnfähigkeit des Armierungsmaterials geschaffen und damit dessen Eignung für formgebende Verfahren, weil die unterbrochenen Endlosfilamente nun bei einer Dehnbeanspruchung aneinander vorbeigleiten können.Different filament lengths are created, whereby the base formed in the not yet needled preliminary product Orientations in controllable proportions are retained. At the same time becomes by the abolition of the pure endless character the filaments created an elasticity of the reinforcement material and thus its suitability for shaping processes, because the interrupted continuous filaments are now subjected to stretching can slide past each other.

Beim Vernadeln ergibt sich weiterhin ein zusätzlicher positiver Effekt, da durch die teilweise Umorientierung der unterbrochenen Filamente in die dritte Dimension hier eine weitere Festigkeit geschaffen wird.When needling, there is still an additional positive Effect because of the partial reorientation of the interrupted Filaments in the third dimension here another strength is created.

Das erfindungsgemäße Verfahren eignet sich besonders für Carbonfilamente, weil aus den zur Verfügung stehenden Filamentstärken Schnittfaser-Matten mit gleichmäßiger Schnittfaserverteilung hier in sehr hohen qm-Gewichten denkbar sind. Das erfindungsgemäße Produkt stellt jedoch auch bei relativ leichten Flächengewichten ab 300 g/m2 Matten mit hervorragend gleichmäßiger Faserverteilung dar.The method according to the invention is particularly suitable for carbon filaments, because cut fiber mats with uniform cut fiber distribution are conceivable here in very high sqm weights from the available filament thicknesses. However, the product according to the invention also represents mats with outstandingly uniform fiber distribution even with relatively light basis weights from 300 g / m 2 .

Die Erfindung bezieht sich dabei auf Monofilamente und auf Multifilamente je nach Einsatzfall.The invention relates to monofilaments and Multifilaments depending on the application.

Claims (7)

  1. Process for the manufacture of a flat element of unidirectional filaments with aligned thread layers, characterised in that the individual filaments are in a finishing process interrupted by needling.
  2. Process according to Claim 1, characterised in that the finishing treatment is carried out only in some areas of the flat element.
  3. Process according to Claim 1 or 2, characterised in that the finishing treatment is carried out in some areas with different intensity.
  4. Process according to one of the above claims, characterised in that the individual filaments are interrupted at irregular distances by needling.
  5. Flat element of unidirectional filaments with aligned thread layers in which the individual filaments are interrupted by needling, characterised in that carbon threads are applied as individual filaments.
  6. Flat filament according to Claim 5, characterised by a mixture of mono-filaments and multi-filaments of different materials.
  7. Flat element according to one of the above Claims 5 and 6, characterised in that the hybrid is produced from strength giving filaments and thermoplast filaments.
EP97922852A 1996-06-18 1997-04-17 Process for manufacturing a flat element with interrupted multifilaments Expired - Lifetime EP0852631B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19624234 1996-06-18
DE19624234A DE19624234A1 (en) 1996-06-18 1996-06-18 Flat element with interrupted multifilaments and process for its production
PCT/DE1997/000784 WO1997048845A1 (en) 1996-06-18 1997-04-17 Process for manufacturing a flat element with interrupted multifilaments

Publications (2)

Publication Number Publication Date
EP0852631A1 EP0852631A1 (en) 1998-07-15
EP0852631B1 true EP0852631B1 (en) 1999-07-28

Family

ID=7797237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97922852A Expired - Lifetime EP0852631B1 (en) 1996-06-18 1997-04-17 Process for manufacturing a flat element with interrupted multifilaments

Country Status (6)

Country Link
US (1) US6027783A (en)
EP (1) EP0852631B1 (en)
JP (1) JP4159055B2 (en)
AT (1) ATE182639T1 (en)
DE (2) DE19624234A1 (en)
WO (1) WO1997048845A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10252671C1 (en) * 2002-11-11 2003-12-04 Mayer Malimo Textilmaschf Three-dimensional fiber-reinforce plastics body is formed by overlaid layers of filament bands, bonded together by stitches in a warp knitter, where the stitches are partially cut for shaping and penetration by a matrix material
US8246882B2 (en) 2003-05-02 2012-08-21 The Boeing Company Methods and preforms for forming composite members with interlayers formed of nonwoven, continuous materials
WO2005087996A1 (en) * 2004-03-10 2005-09-22 Saertex Gmbh & Co. Kg Multiaxial complex
AU2012245500B2 (en) 2011-04-18 2015-12-17 Fyfe Co., Llc Expandable liner for the protection and strengthening of existing pipes
DE102012109488B4 (en) 2012-10-05 2014-08-07 WEGU GmbH Schwingungsdämpfung Compact warehouse with multi-part frame made of extruded sections
KR20170015926A (en) 2014-06-16 2017-02-10 파이페 씨오. 엘엘씨 Repair of pipes
WO2016009361A1 (en) 2014-07-14 2016-01-21 Fyfe Co. Llc Method of reininforcing a pipe with a pipe lining, reinforced pipe and method of waterproofing a reinforced pipe
US9993992B2 (en) 2015-04-17 2018-06-12 Fyfe Co. Llc Structural fabric useful for lining pipe
US10077855B2 (en) 2015-09-22 2018-09-18 Ina Acquisition Corp. Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength liner
US11173634B2 (en) 2018-02-01 2021-11-16 Ina Acquisition Corp Electromagnetic radiation curable pipe liner and method of making and installing the same
US10704728B2 (en) 2018-03-20 2020-07-07 Ina Acquisition Corp. Pipe liner and method of making same

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
DE1087559B (en) * 1956-07-02 1960-08-25 Wilhelm Bellingroth Method and device for the production of a surface structure provided with recesses
DE3132697A1 (en) * 1981-08-19 1983-03-03 Richard 4937 Lage Pott METHOD AND DEVICE FOR PRODUCING A LAYER
FR2617208B1 (en) * 1987-06-26 1989-10-20 Inst Textile De France PROCESS AND MATERIAL FOR NEEDLES OF GLASS MAT AND COMPOSITE PRODUCT MADE FROM SAID MAT
DE3741669A1 (en) * 1987-12-09 1989-06-22 Basf Ag FIBER REINFORCED, THERMOPLASTIC SEMI-FINISHED PRODUCTS
DE69022595T2 (en) * 1989-07-25 1996-02-29 Dunlop Ltd., London PRODUCTION OF CARBON FIBER SEMI-FINISHED PRODUCTS.
DK162535C (en) * 1989-11-30 1992-03-30 Dansk Hoerindustri As HEAR FIBER FELT PLATE
US5217770A (en) * 1991-08-15 1993-06-08 The B. F. Goodrich Company Braided shaped filamentary structures and methods of making
US5392500A (en) * 1991-12-02 1995-02-28 Societe Europeenne De Propulsion Process for the manufacture of a fibrous preform formed of refractory fibers for producing a composite material article
US5688577A (en) * 1995-07-27 1997-11-18 R. K. Carbon Fibers, Inc. Multi-directional friction materials
ATE207808T1 (en) * 1995-07-28 2001-11-15 Saertex Wagener Gmbh & Co Kg METHOD FOR PRODUCING A REINFORCEMENT FOR THERMAL OR DUROPLAST MATRICES

Also Published As

Publication number Publication date
JP2001508135A (en) 2001-06-19
ATE182639T1 (en) 1999-08-15
DE59700285D1 (en) 1999-09-02
EP0852631A1 (en) 1998-07-15
WO1997048845A1 (en) 1997-12-24
JP4159055B2 (en) 2008-10-01
US6027783A (en) 2000-02-22
DE19624234A1 (en) 1998-01-08

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