EP1424422A1 - Géotextiles structurés et procédé de fabrication - Google Patents

Géotextiles structurés et procédé de fabrication Download PDF

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Publication number
EP1424422A1
EP1424422A1 EP02026437A EP02026437A EP1424422A1 EP 1424422 A1 EP1424422 A1 EP 1424422A1 EP 02026437 A EP02026437 A EP 02026437A EP 02026437 A EP02026437 A EP 02026437A EP 1424422 A1 EP1424422 A1 EP 1424422A1
Authority
EP
European Patent Office
Prior art keywords
structured
geotextiles
nonwovens
targeted
consolidated
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.)
Withdrawn
Application number
EP02026437A
Other languages
German (de)
English (en)
Inventor
Uwe Bornmann
Albert Mittermayr
Franz Hintermüller
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.)
Polyfelt GmbH
Original Assignee
Polyfelt 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 Polyfelt GmbH filed Critical Polyfelt GmbH
Priority to EP02026437A priority Critical patent/EP1424422A1/fr
Publication of EP1424422A1 publication Critical patent/EP1424422A1/fr
Withdrawn legal-status Critical Current

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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
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Definitions

  • the invention relates to structured geotextiles and methods for their Manufactured by hydrodynamic consolidation processes.
  • Structured geotextiles are used in a variety of applications used. For example, structured geotextiles become targeted and directed drainage of water, especially surface water, for example in embankments, dikes, slopes, in road construction and the like used.
  • the object of the invention was to provide structured geotextiles, which have improved properties, particularly with regard to Water permeability in defined areas both on the geotextile level, as well as vertical to the surface of the geotextile. It was also the task of Invention defines a method and an apparatus for manufacturing such to provide structured geotextiles.
  • the invention therefore relates to structured geotextiles, thereby characterized that the defined structuring through targeted hydrodynamic consolidation process is produced.
  • Another object of the invention is a method for manufacturing structured geotextiles, characterized in that in one hydrodynamic solidification processes defined capillaries differently Diameter for the production of differently solidified areas Geotextiles can be used.
  • Methods for the hydrodynamic consolidation of nonwovens are, for example from EP-A 0 896 080, EP-A 101 064, EP-A 0 900 295, EP-A 0967 315, EP-A 0859 076, EP-A 0 841 424, EP 0 727 517 and EP-A 0 751 249 known.
  • nonwovens can be protected Way by flowing out of a nozzle bar
  • Water curtain can be solidified from water jets.
  • the intensity the solidification is essentially the diameter of the from the nozzle bar, or its holes depending on the water jet emerging. The bigger the The diameter of the water jet, the higher the matting and thus the Consolidation of the fleece.
  • Structured geotextiles can be produced in a defined manner by the arrangement of the water jet nozzles of different diameters in the nozzle bar. For example, regular sequences of water jet nozzles with a small diameter and water jet nozzles with a larger diameter can be used to produce regularly structured geotextiles. In the area in which the geotextile is consolidated by water jets with a small diameter, the consolidation is less, the geotextile remains more voluminous and loose. In those areas in which the geotextile is consolidated by water jets with a larger diameter, the geotextile is strongly consolidated, it becomes flat and firm.
  • the diameter of the water jet nozzles can be between 0.1-0.2 mm for strong flat consolidation and 0.05-0.1 for loose voluminous consolidation.
  • the diameters of the capillaries can be selected accordingly, intermediate values also being possible depending on the requirements.
  • the fleece to be consolidated can consist of staple or continuous fibers.
  • the fibers preferably consist of plastics, such as, for example Polypropylene, polyethylene, polyamide, polyester or mixtures the same.
  • nonwovens can also have bicomponent fibers or consist entirely of such fibers.
  • the nonwovens can also contain parts of natural fibers such as cellulose, hemp, sisal, coconut, kenaf and the like.
  • the fibers can each have different textures and / or Have fiber cross sections.
  • two or more unconsolidated or pre-consolidated nonwovens are placed on top of one another and then, as described, consolidated differently by the hydrodynamic consolidation process using different capillary diameters of the water jet nozzles, so that structured composite nonwovens are formed.
  • the individual fleeces can have different compositions.
  • 1 a - 3 b are examples of arrangements of water jet nozzles and solidified by the special arrangement of the water jet nozzles Fleece shown.
  • Figures 1, 2 and 3 show the arrangement of the water jet nozzles different diameter, Figures 1 a, 2a, 3a, which correspond to the Structures produced diameters, represented qualitatively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
EP02026437A 2002-11-27 2002-11-27 Géotextiles structurés et procédé de fabrication Withdrawn EP1424422A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02026437A EP1424422A1 (fr) 2002-11-27 2002-11-27 Géotextiles structurés et procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02026437A EP1424422A1 (fr) 2002-11-27 2002-11-27 Géotextiles structurés et procédé de fabrication

Publications (1)

Publication Number Publication Date
EP1424422A1 true EP1424422A1 (fr) 2004-06-02

Family

ID=32241283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02026437A Withdrawn EP1424422A1 (fr) 2002-11-27 2002-11-27 Géotextiles structurés et procédé de fabrication

Country Status (1)

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EP (1) EP1424422A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748101A2 (fr) * 2005-07-26 2007-01-31 Fleissner GmbH Multi-couche fibreux volumineux et sa fabrication
DE102008060327A1 (de) * 2008-12-03 2010-06-10 Fleissner Gmbh Verfahren und Vorrichtung zur Herstellung eines Vliesproduktes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752247A (en) * 1952-02-04 1956-06-26 Ray C Chandler Rice processing
US5018255A (en) * 1987-06-26 1991-05-28 Vetrotex Saint-Gobain S.A. Method and apparatus for needling of glass mat and composite product made from said mat
US5151320A (en) * 1992-02-25 1992-09-29 The Dexter Corporation Hydroentangled spunbonded composite fabric and process
US5308674A (en) * 1991-03-26 1994-05-03 E. I. Du Pont De Nemours And Company Tear-resistant stitchbonded fabric
US5630261A (en) * 1994-06-15 1997-05-20 Jps Automotive Products Corporation Air bag for use in a motor vehicle and method of producing same
GB2337723A (en) * 1998-05-30 1999-12-01 Growthscope Limited Producing a textile package
US20010006866A1 (en) * 1999-12-28 2001-07-05 Polymer Processing Research Institute, Ltd. Tow multiaxial non-woven fabric, and method of making the same
WO2001094673A1 (fr) * 2000-06-02 2001-12-13 B & H Research Limited Formation de matiere de feuille par hydroenchevetrement
DE10064687A1 (de) * 2000-12-22 2002-07-04 Fleissner Maschf Gmbh Co Verfahren zur hydrodynamischen Beaufschlagung einer auch mit endlichen Produkten versehenen Warenbahn mit Wasserstrahlen und Düseneinrichtung zur Erzeugung von Flüssigkeitsstrahlen
US20020157766A1 (en) * 1999-06-10 2002-10-31 Rieter Perfojet Process for producing a nonwoven material, plant for implementing it and nonwoven thus obtained

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752247A (en) * 1952-02-04 1956-06-26 Ray C Chandler Rice processing
US5018255A (en) * 1987-06-26 1991-05-28 Vetrotex Saint-Gobain S.A. Method and apparatus for needling of glass mat and composite product made from said mat
US5308674A (en) * 1991-03-26 1994-05-03 E. I. Du Pont De Nemours And Company Tear-resistant stitchbonded fabric
US5151320A (en) * 1992-02-25 1992-09-29 The Dexter Corporation Hydroentangled spunbonded composite fabric and process
US5630261A (en) * 1994-06-15 1997-05-20 Jps Automotive Products Corporation Air bag for use in a motor vehicle and method of producing same
GB2337723A (en) * 1998-05-30 1999-12-01 Growthscope Limited Producing a textile package
US20020157766A1 (en) * 1999-06-10 2002-10-31 Rieter Perfojet Process for producing a nonwoven material, plant for implementing it and nonwoven thus obtained
US20010006866A1 (en) * 1999-12-28 2001-07-05 Polymer Processing Research Institute, Ltd. Tow multiaxial non-woven fabric, and method of making the same
WO2001094673A1 (fr) * 2000-06-02 2001-12-13 B & H Research Limited Formation de matiere de feuille par hydroenchevetrement
DE10064687A1 (de) * 2000-12-22 2002-07-04 Fleissner Maschf Gmbh Co Verfahren zur hydrodynamischen Beaufschlagung einer auch mit endlichen Produkten versehenen Warenbahn mit Wasserstrahlen und Düseneinrichtung zur Erzeugung von Flüssigkeitsstrahlen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748101A2 (fr) * 2005-07-26 2007-01-31 Fleissner GmbH Multi-couche fibreux volumineux et sa fabrication
DE102005034821A1 (de) * 2005-07-26 2007-02-08 Fleissner Gmbh Voluminöse Faserlaminate und ihre Herstellung
EP1748101A3 (fr) * 2005-07-26 2008-07-09 Fleissner GmbH Multi-couche fibreux volumineux et sa fabrication
DE102008060327A1 (de) * 2008-12-03 2010-06-10 Fleissner Gmbh Verfahren und Vorrichtung zur Herstellung eines Vliesproduktes

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