WO1997034034A1 - Textile fabric - Google Patents

Textile fabric Download PDF

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Publication number
WO1997034034A1
WO1997034034A1 PCT/GB1997/000604 GB9700604W WO9734034A1 WO 1997034034 A1 WO1997034034 A1 WO 1997034034A1 GB 9700604 W GB9700604 W GB 9700604W WO 9734034 A1 WO9734034 A1 WO 9734034A1
Authority
WO
WIPO (PCT)
Prior art keywords
strands
fabric according
polyester
fabric
wefts
Prior art date
Application number
PCT/GB1997/000604
Other languages
French (fr)
Inventor
John Thompson
Original Assignee
Netlon Limited
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 Netlon Limited filed Critical Netlon Limited
Priority to AU22258/97A priority Critical patent/AU2225897A/en
Publication of WO1997034034A1 publication Critical patent/WO1997034034A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/43—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204—Geotextiles

Definitions

  • This invention concerns a textile fabric and more particularly a so-called geotextile of the kind intended for example for inclusion within an earthwork to provide stability thereto.
  • Geotextiles may be of woven, knitted, non-woven or other construction, may be formed from one or more different fibre types present in different configurations and different densities per unit area, all dependent upon the intended end usage and physical characteristics required.
  • a commonly used fibre for its tensile strength is polyester, but such has the disadvantage of poor resistance to damage through abrasion as is apt to occur on site between deployment of the fabrics and their final burial, by contact with workmen's boots, vehicle tyres and tracks and so forth.
  • a conventional solution to this problem is to utilise fabrics of higher strength than the intended design requirement in the expectation that after the anticipated damage the installed fabrics will at least meet the design requirement. T is is a wasteful and costly option.
  • a geotextile fabric including as a component thereof strands comprising a multifilament yam encased in a protective sheath.
  • the multifilaments may be of polyester and the sheath may be of polyethylene.
  • the strands may be present as warps or wefts or both.
  • warps and wefts When both warps and wefts are present they may be of different diameters.
  • the warps or wefts or both may be joined into a coherent sheet by a knitted structure enmeshing same.
  • the geotextile comprises warps 10 arranged in parallel spaced relationship and overlaying, at right angles, wefts 11 also arranged in parallel spaced relationship.
  • the warps 10 have an overall diameter of 4 mm and comprise a polyester yarn of 54,000 denier having 10,800 filaments 10a within a sheath 10b of polyethylene having a thickness of 0.05 mm. There are 120 warps 10 per linear metre.
  • the wefts 1 1 comprise a polyester yam of 1,000 denier having 200 filaments within a sheath 1 lb of polyethylene. There are 700 wefts 11 per linear metre.
  • the layers of warps 10 and wefts 11 are joined into a coherent sheet by lines of knitted stitching 12 of 360 denier polyethylene tape which enmesh the warps and wefts at their crossing points.
  • the polyester content is such as to give the finished fabric the required mechanical characteristics which can be expected to remain throughout installation since the polyester is encased in the relatively abrasion resistant polyethylene.
  • the fabric may be of woven construction.
  • warp or the weft strands may be of the composite structure described.
  • the fabric might include a non-woven substrate of polyester or polypropylene for example to add filtration and separation properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

There is disclosed a geotextile fabric including as a component thereof strands comprising a multifilament yarn encased in a protective sheath.

Description

TEXTILE FABRΪC
This invention concerns a textile fabric and more particularly a so-called geotextile of the kind intended for example for inclusion within an earthwork to provide stability thereto.
Geotextiles may be of woven, knitted, non-woven or other construction, may be formed from one or more different fibre types present in different configurations and different densities per unit area, all dependent upon the intended end usage and physical characteristics required.
A commonly used fibre for its tensile strength is polyester, but such has the disadvantage of poor resistance to damage through abrasion as is apt to occur on site between deployment of the fabrics and their final burial, by contact with workmen's boots, vehicle tyres and tracks and so forth.
A conventional solution to this problem is to utilise fabrics of higher strength than the intended design requirement in the expectation that after the anticipated damage the installed fabrics will at least meet the design requirement. T is is a wasteful and costly option.
It is an object of the present invention to provide a geotextile which overcomes, at least to some extent, the problems aforesaid.
According to the present invention, there is a provided a geotextile fabric including as a component thereof strands comprising a multifilament yam encased in a protective sheath. The multifilaments may be of polyester and the sheath may be of polyethylene.
The strands may be present as warps or wefts or both.
When both warps and wefts are present they may be of different diameters.
The warps or wefts or both may be joined into a coherent sheet by a knitted structure enmeshing same.
The invention will be further apparent from the following description, with reference to the single figure of the accompanying drawing, which shows, by way of example only, one form of geotextile embodying same.
Referring to the drawing it will be seen that the geotextile comprises warps 10 arranged in parallel spaced relationship and overlaying, at right angles, wefts 11 also arranged in parallel spaced relationship.
The warps 10 have an overall diameter of 4 mm and comprise a polyester yarn of 54,000 denier having 10,800 filaments 10a within a sheath 10b of polyethylene having a thickness of 0.05 mm. There are 120 warps 10 per linear metre.
The wefts 1 1 comprise a polyester yam of 1,000 denier having 200 filaments within a sheath 1 lb of polyethylene. There are 700 wefts 11 per linear metre.
The layers of warps 10 and wefts 11 are joined into a coherent sheet by lines of knitted stitching 12 of 360 denier polyethylene tape which enmesh the warps and wefts at their crossing points. The polyester content is such as to give the finished fabric the required mechanical characteristics which can be expected to remain throughout installation since the polyester is encased in the relatively abrasion resistant polyethylene.
It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art being possible, without departing from the scope thereof.
Thus, for example, the fabric may be of woven construction.
Again, for example, only the warp or the weft strands may be of the composite structure described.
Yet again, for example, not all strands of polyester need to be sheathed in polyethylene.
Still again, the fabric might include a non-woven substrate of polyester or polypropylene for example to add filtration and separation properties.

Claims

CLAMS
1. A geotextile fabric including as a component thereof strands comprising a multifilament yam encased in a protective sheath.
2. A fabric according to claim 1, of which the multifilament yam comprises a polyester yam.
3. A fabric according to claim 1 or claim 2, of which the sheath is of polyethylene.
4. A fabric according to any one of claims 1 to 3, of which the strands are warp strands.
5. A fabric according to any one of claims 1 to 4, of which the strands are weft strands.
6. A fabric according to any one of claims 1 to 5, having warp and weft strands of different diameters.
7. A fabric according to any one of claims 1 to 6, having strands joined into a coherent sheet of a knitted structure enmeshing them.
PCT/GB1997/000604 1996-03-12 1997-03-05 Textile fabric WO1997034034A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22258/97A AU2225897A (en) 1996-03-12 1997-03-05 Textile fabric

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9605238.6 1996-03-12
GBGB9605238.6A GB9605238D0 (en) 1996-03-12 1996-03-12 Textile fabric

Publications (1)

Publication Number Publication Date
WO1997034034A1 true WO1997034034A1 (en) 1997-09-18

Family

ID=10790287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/000604 WO1997034034A1 (en) 1996-03-12 1997-03-05 Textile fabric

Country Status (4)

Country Link
AU (1) AU2225897A (en)
GB (1) GB9605238D0 (en)
TW (1) TW330950B (en)
WO (1) WO1997034034A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033449A1 (en) * 2007-09-10 2009-03-19 Geotex Gmbh Geomat
US11047073B2 (en) * 2017-04-03 2021-06-29 Toho Tenax Europe Gmbh Method for producing a textile unidirectional fabric

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572426A1 (en) * 1984-10-31 1986-05-02 Nord Sa Union Textile Geotextile
US5091247A (en) * 1988-12-05 1992-02-25 Nicolon Corporation Woven geotextile grid
JPH06299470A (en) * 1993-04-15 1994-10-25 Toray Ind Inc Sheet for civil engineering
JPH0797719A (en) * 1993-09-27 1995-04-11 Kuraray Co Ltd Conjugate fiber
JPH07189139A (en) * 1993-12-27 1995-07-25 Toray Ind Inc Nonwoven fabric and geotextile material
WO1996035833A1 (en) * 1995-05-12 1996-11-14 The Tensar Corporation Bonded composite open mesh structural textiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572426A1 (en) * 1984-10-31 1986-05-02 Nord Sa Union Textile Geotextile
US5091247A (en) * 1988-12-05 1992-02-25 Nicolon Corporation Woven geotextile grid
JPH06299470A (en) * 1993-04-15 1994-10-25 Toray Ind Inc Sheet for civil engineering
JPH0797719A (en) * 1993-09-27 1995-04-11 Kuraray Co Ltd Conjugate fiber
JPH07189139A (en) * 1993-12-27 1995-07-25 Toray Ind Inc Nonwoven fabric and geotextile material
WO1996035833A1 (en) * 1995-05-12 1996-11-14 The Tensar Corporation Bonded composite open mesh structural textiles

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9502, Derwent World Patents Index; Class A93, AN 95-012364, XP002035426 *
DATABASE WPI Section Ch Week 9523, Derwent World Patents Index; Class A23, AN 95-175617, XP002035427 *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 010 30 November 1995 (1995-11-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033449A1 (en) * 2007-09-10 2009-03-19 Geotex Gmbh Geomat
US11047073B2 (en) * 2017-04-03 2021-06-29 Toho Tenax Europe Gmbh Method for producing a textile unidirectional fabric

Also Published As

Publication number Publication date
AU2225897A (en) 1997-10-01
GB9605238D0 (en) 1996-05-15
TW330950B (en) 1998-05-01

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