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US20090194188A1 - Stretchable Fabric - Google Patents

Stretchable Fabric Download PDF

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Publication number
US20090194188A1
US20090194188A1 US12/226,196 US22619607A US2009194188A1 US 20090194188 A1 US20090194188 A1 US 20090194188A1 US 22619607 A US22619607 A US 22619607A US 2009194188 A1 US2009194188 A1 US 2009194188A1
Authority
US
United States
Prior art keywords
threads
fabric
warp threads
weft
warp
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.)
Abandoned
Application number
US12/226,196
Other languages
English (en)
Inventor
Jörg Ruschulte
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.)
Global Safety Textiles GmbH
Original Assignee
Global Safety Textiles 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 Global Safety Textiles GmbH filed Critical Global Safety Textiles GmbH
Assigned to ITG AUTOMOTIVE SAFETY TEXTILES GMBH reassignment ITG AUTOMOTIVE SAFETY TEXTILES GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUSCHULTE, JORG
Publication of US20090194188A1 publication Critical patent/US20090194188A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/02—Inflatable articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • 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
    • D03D15/50—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 properties of the yarns or threads
    • D03D15/56—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 properties of the yarns or threads elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23509—Fabric

Definitions

  • the present invention relates to a stretchable fabric comprising first and second warp threads and first and second weft threads.
  • Fabrics are known which are employed in the production of air bags for automotive passenger restraint systems and incorporated uncoated.
  • An air bag made of such a fabric is inflated instantly by a gas being jetted thereinto in application, the resulting pressure stressing the air bag in tension, opening up the fabric structure, i.e. increasing its air permeance by stretching its structure, permitting the outflow of inflation gas.
  • This can greatly retard the response of the air bag, for example, because of it being deployed slower and because of it losing air all the time as a consequence.
  • the air bag is delayed in developing its cushioning effect to protect the passenger, possibly also with a risk of injury from escape of the inflation gas.
  • the invention is based on the object of proposing a fabric which avoids, or at least greatly reduces, the drawbacks known from prior art.
  • a fabric as set forth in claim 1 comprising first and second warp threads and first and second weft threads, characterized in that the first warp threads and the first weft threads form a basic ply and the second warp threads and second weft threads form a ply topping the basic ply, the second warp threads being interwoven also with the first weft threads and the first weft threads and the second weft threads are arranged so that they, after stretching of the fabric, lie alternatingly substantially juxtaposed so that a second weft thread always locates alongside a first weft thread.
  • a fabric as set forth in claim 2 comprising first and second warp threads and first and second weft threads, characterized in that the modulus of elasticity of the first warp threads is lower than the modulus of elasticity of the second warp threads and that the second warp threads are woven with a lower warp tension than the first warp threads and that the first weft threads lie in a basic plane and the weft threads lie in a topping plane along with the basic plane, the first weft threads and the second weft threads being arranged so that after stretching of the fabric they lie alternatingly substantially juxtaposed so that a second weft thread always locates alongside a first weft thread.
  • the first warp threads having the lower modulus of elasticity are stretched more than the second warp threads having the higher modulus of elasticity so that the spacing growing between the first weft threads when the fabric is tensile loaded is compensated that the second weft threads previously located in the topping plane become more or less arranged in the increasing gaps between the first weft threads, resulting in the absolute spacing between two juxtaposed weft threads remaining roughly the same.
  • first and second warp threads and weft threads are repeated reference to first and second warp threads and weft threads. It is to be noted that this does not exclusively involve individual threads, but is also intended to include threads in a multiple lay or shedded, in other words, threads located multiply juxtaposed.
  • a first warp thread “a” is intended functionally and not numerically.
  • the fabric in accordance with the invention may be provided as a piece, for example as a filter piece or gas jetting mechanism in an air bag both fabricated and in one-piece woven (OPW) air bags.
  • the air bag may also be made totally of such a fabric.
  • threads of differing design and/or stretch can be put to use in accordance with the invention in a fabric in the warp and/or weft direction. It is understood that this is not exclusively intended for application in automotive passenger restraint systems but may find application in many technical fields for the use of textiles.
  • FIG. 1 is a diagrammatic view of a fabric as known from prior art in the unstretched condition.
  • FIG. 2 is a diagrammatic view of the fabric as shown in FIG. 1 but in the stretched condition as occurs in its application as an air bag.
  • FIG. 3 is a diagrammatic view of one example embodiment of the fabric in accordance with the invention in the unstretched condition.
  • FIG. 4 is a diagrammatic view of the fabric as shown in FIG. 3 but in the stretched condition.
  • FIG. 5 is a diagrammatic view of another example embodiment of the fabric in accordance with the invention in the unstretched condition.
  • FIG. 6 is a diagrammatic view of the fabric as shown in FIG. 5 but in the stretched condition.
  • FIG. 1 there is illustrated weft threads 3 greatly magnified as circles interwoven by warp threads 1 and 2 in a fabric woven in usual L 1/1 plain weave, the spacing of two weft threads being identified by the reference numeral 6 .
  • the upper illustration of FIG. 1 shows a section through a fabric along a first warp thread in which a first warp thread 1 entwines weft threads 3 .
  • the lower illustration of a section of fabric known from prior art in a plain weave shows a section through the fabric along a second warp thread 2 .
  • the spacing 6 between the weft threads 3 (the response being the same between warp threads) is as designed.
  • FIG. 2 there are illustrated the sections of the fabric as shown in FIG. 1 but in the stretched condition, i.e. for example in application of the fabric in an air bag during or after inflation. Jetting the air bag (not shown) with gas by an inflator (not shown) and/or cushioning the impact of the vehicle occupant results in tensile loading of the fabric, extending the spacing 6 between the weft threads indexed “a” to indicate the stretched condition in FIG. 2 .
  • the spacing 6 a is greater than the spacing 6 and the weft threads in the position 3 a have a correspondingly larger spacing. This increase in the spacing 6 a between the 3 a increases the air permeance of the fabric, a designed and substantial stretch resulting, in the course of which the threads (warp threads and weft threads) also become thinner.
  • FIG. 3 there is illustrated one embodiment of a new fabric comprising first weft threads 13 topped by second weft threads 15 (so-called sealing threads).
  • first weft threads 13 topped by second weft threads 15 (so-called sealing threads).
  • FIGS. 1 and 2 Analogous to the illustration as shown in FIGS. 1 and 2 again the upper illustration of FIG. 3 shows how the first weft threads 13 and second weft threads 15 are picked in connection with warp threads 11 and 14 , the first weft threads 13 forming likewise a basic ply 17 over which an actual not truly juxtaposed topping ply 19 is arranged.
  • the lower illustration of FIG. 3 shows warp threads 12 and 14 .
  • the warp threads 11 and 12 crimp only the first weft threads 13 whereas the second warp thread 14 , in this case having likewise the function of a lacing thread, laces the second weft threads 15 in forming a topping ply 19 on the basic ply 17 .
  • the second weft threads 15 in other words, the sealing threads, lie more on instead of in the basic ply 17 in forming a “topping ply” 19 .
  • the topping ply 19 is not a woven in its own right but a topping 19 lying on the basic ply 17 , represented by the second weft threads 15 and the second warp threads 14 (lacing threads). Whilst the fabric is shown in FIG.
  • FIG. 4 there is illustrated the fabric of FIG. 3 in the unstretched condition, showing how the first and second warp threads 11 , 12 are stretched to the left and right.
  • the spacing between the weft threads 13 a has increased to that as shown by interspace dimension 16 a and in the interspace between the second weft threads 13 a the weft threads 15 a (sealing threads) are drawn by the lacing threads (second warp threads 14 a ) into the interspaces 16 a .
  • This special design of the fabric in accordance with the invention now makes it possible by presetting the running length of the second warp thread (lacing thread 14 ) lacing the weft threads 13 and 15 to maintain constant the interspace 16 resulting from stretch under loading and thus also the air permeance between the threads of the fabric, to reduce it with increasing stress, or to increase it in accordance with requirements or to tailor it individually via the loading profile.
  • FIGS. 3 and 4 it is thus, for example, possible to set the smallest spacing (spacing 16 in FIG. 3 , spacing 16 b in FIG. 4 ) between two sealing weft threads. In the aspect as shown here, the spacing in FIG.
  • FIG. 5 there is illustrated a second example aspect of a fabric in accordance with the invention in the unloaded condition with a response similar to that of the first example aspect, but without separate lacing and sealing threads.
  • two different yarn materials are employed in the warp, namely first warp threads 21 and second warp threads 24 , the second warp threads 24 having a higher modulus of elasticity than that of the first warp threads 21 .
  • the second warp threads 24 are woven with a lower warp tension than the first warp threads 21 , resulting in a fabric situation the first weft threads 23 being woven in a basic plane 27 and the weft threads 25 in a topping plane 29 .
  • the first warp threads 21 with a lower modulus of elasticity than that of the second warp threads 24 are placed with a warp tension for fabricating the fabric and the second warp threads 24 having a modulus of elasticity higher than the modulus of elasticity of the first warp threads 21 are placed with a warp tension lower than that of the first warp threads 21 .
  • FIG. 6 there is illustrated the fabric as shown in FIG. 5 but in the loaded condition.
  • the first warp threads 21 a having the smaller modulus of elasticity are stretched more than the second warp threads 24 a having the higher modulus of elasticity so that the increase in the spacing ( 26 becomes 26 a ) between the first weft threads 23 a when the fabric is subjected to tensile loading is compensated by the previously topping weft threads 25 becoming arranged more or less in the gaps 26 a becoming larger and the absolute spacing 28 between adjoining weft threads 23 a , 25 a remaining the same in thus making it possible to maintain the interspace 26 / 28 and accordingly also the air permeance between the weft threads constant.
  • a fabric as shown in FIG. 6 is characterized by it being woven in the unloaded condition with the same crimp of the first warp threads 21 and second warp threads 24 , the strain of the material of the second warp threads 24 , 24 a being higher than the strain capacity of the first warp threads 21 , 21 a .
  • second weft threads can be lifted out from the plane of the first weft threads as a result of the difference in the capacity of the warp threads when loaded to accommodate strain.
  • the spacing may also be made larger or smaller than that of the fabric shown unloaded in FIG. 5 .
  • the design in accordance with the invention permits enhancing the air permeance out of all proportion when weaving a fabric similar to that as shown in FIG. 6 , i.e. with the same crimp of the warp threads 21 and 24 , but now in the unloaded condition.
  • the second weft threads (sealing threads 25 ) because of the difference in the strain capacity (that of the second warp threads 24 , second warp threads 24 a is higher and that of the first warp threads 21 , first warp threads 21 a is lower) can be lifted out from the plane of the first weft threads 23 when loaded (analagous to the illustration as shown in FIG. 5 but with an even greater spacing in the levels 27 and 29 , but in the loaded condition).
  • a fabric in which the profile of the stretch curve is set up individually or tweaked by the fabric comprising in predefined portions warp threads and weft threads with specifically selected parameters such as the modulus of elasticity or also in a specifically selected sequence.
  • other technical parameters such as for example the profile of the stretch curve—can be tweaked or individually set up to subsequently also influence, for example, the deployment response of air bags by sections of the fabric stretching more or less individually.
  • These smart fabrics pave the way to tweaking or setting up individually the parameters of the fabric each independent of the other in the future as are currently functionally dependent on each by design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Air Bags (AREA)
US12/226,196 2006-04-12 2007-04-12 Stretchable Fabric Abandoned US20090194188A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006017270A DE102006017270A1 (de) 2006-04-12 2006-04-12 Gewebe
DE2006-017-2701.1 2006-04-12
PCT/EP2007/003263 WO2007118673A2 (de) 2006-04-12 2007-04-12 Dehnbares gewebe

Publications (1)

Publication Number Publication Date
US20090194188A1 true US20090194188A1 (en) 2009-08-06

Family

ID=38462059

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/226,196 Abandoned US20090194188A1 (en) 2006-04-12 2007-04-12 Stretchable Fabric

Country Status (9)

Country Link
US (1) US20090194188A1 (de)
EP (1) EP2004886A2 (de)
JP (1) JP2009533565A (de)
CN (1) CN101421450A (de)
CA (1) CA2649382A1 (de)
DE (1) DE102006017270A1 (de)
MX (1) MX2008013155A (de)
WO (1) WO2007118673A2 (de)
ZA (1) ZA200808659B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170321354A1 (en) * 2014-12-10 2017-11-09 Uchino Co., Ltd. Method for weaving multiply gauze, and multiply gauze woven fabric
EP3896202A4 (de) * 2018-12-14 2022-09-28 Toray Industries, Inc. Airbag-gewebe und verfahren zur herstellung von airbag-gewebe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009333A1 (de) 2013-06-05 2014-12-11 Hermann-Frank Müller Fahrzeugplane
KR20170106159A (ko) * 2016-03-10 2017-09-20 주식회사 엘지생활건강 화장품
CN109385728B (zh) * 2017-08-11 2021-08-31 东莞超盈纺织有限公司 具有环境水分响应能力的纺织面料设计及制备方法
DE102019002441A1 (de) * 2019-04-03 2020-10-08 Global Safety Textiles Gmbh OPW-Luftsack

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340091A (en) * 1975-05-07 1982-07-20 Albany International Corp. Elastomeric sheet materials for heart valve and other prosthetic implants
US4710423A (en) * 1985-11-11 1987-12-01 Teijin Limited Woven polyester webbing for safety belts
US4876774A (en) * 1982-09-30 1989-10-31 Allied-Signal Inc. Method for preparing heat set fabrics
US5394563A (en) * 1990-10-01 1995-03-07 Doyle; Brian P. Anti-G garment fabric
US20030111128A1 (en) * 2001-12-19 2003-06-19 Hannigan Mark A. Bi-modulus reinforcement fabric
US20030159749A1 (en) * 2000-02-04 2003-08-28 Yoshiomi Hotta Woven strech fabric
US20030166367A1 (en) * 2000-10-05 2003-09-04 Johann Berger Textile construction and method for the production thereof
US20050161919A1 (en) * 2002-06-04 2005-07-28 Johann Berger Airbag and method of producing an airbag
US20060246801A1 (en) * 2003-09-24 2006-11-02 Johann Berger Woven webbing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE635902C (de) * 1934-01-23 1936-09-30 Kulmbacher Spinnerei Gewebe
GB742863A (en) * 1952-08-15 1956-01-04 John Guilfoyle Williams Improvements in and relating to low porosity textile fabrics
GB883529A (en) * 1957-04-02 1961-11-29 Secr Defence Brit Ballistic armour
DE1248576B (de) * 1961-11-04 1967-08-24 Hch Kalbskopf Fa Elastisches Gurtengewebe
DE2150370A1 (de) * 1971-10-08 1973-04-12 Johnson & Johnson Gewebeband sowie verfahren und vorrichtung zu seiner herstellung
IT1087206B (it) * 1977-10-24 1985-06-04 Mectex Sas Di C Fassi & C Procedimento per l'ottenimento di un tessuto tubico bielastico e tessuto cosi' ottenuto
DE3032815A1 (de) * 1980-08-30 1982-04-15 Jute- und Leinenindustrie H.R. Rathgeber KG, 7922 Herbrechtingen Gurtband und verfahren zu seiner herstellung
FR2590914B1 (fr) * 1985-11-29 1988-03-04 Cheynet Fils J Ruban a effet de brillance en surface
US7048013B2 (en) * 2003-07-07 2006-05-23 Maidenform, Inc. Elastic material having variable modulus of elasticity
DE202004017762U1 (de) * 2004-11-16 2005-01-05 Berger Gmbh & Co. Holding Kg Gewebe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340091A (en) * 1975-05-07 1982-07-20 Albany International Corp. Elastomeric sheet materials for heart valve and other prosthetic implants
US4876774A (en) * 1982-09-30 1989-10-31 Allied-Signal Inc. Method for preparing heat set fabrics
US4710423A (en) * 1985-11-11 1987-12-01 Teijin Limited Woven polyester webbing for safety belts
US5394563A (en) * 1990-10-01 1995-03-07 Doyle; Brian P. Anti-G garment fabric
US20030159749A1 (en) * 2000-02-04 2003-08-28 Yoshiomi Hotta Woven strech fabric
US6705353B2 (en) * 2000-02-04 2004-03-16 Asahi Kasei Kabushiki Kaisha Woven strecth fabric
US20030166367A1 (en) * 2000-10-05 2003-09-04 Johann Berger Textile construction and method for the production thereof
US20030111128A1 (en) * 2001-12-19 2003-06-19 Hannigan Mark A. Bi-modulus reinforcement fabric
US6834685B2 (en) * 2001-12-19 2004-12-28 Warwick Mills, Inc. Bi-modulus reinforcement fabric
US20050161919A1 (en) * 2002-06-04 2005-07-28 Johann Berger Airbag and method of producing an airbag
US20060246801A1 (en) * 2003-09-24 2006-11-02 Johann Berger Woven webbing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170321354A1 (en) * 2014-12-10 2017-11-09 Uchino Co., Ltd. Method for weaving multiply gauze, and multiply gauze woven fabric
US10415161B2 (en) * 2014-12-10 2019-09-17 Uchino Co., Ltd. Method for weaving multiply gauze, and multiply gauze woven fabric
EP3896202A4 (de) * 2018-12-14 2022-09-28 Toray Industries, Inc. Airbag-gewebe und verfahren zur herstellung von airbag-gewebe

Also Published As

Publication number Publication date
DE102006017270A1 (de) 2007-10-18
WO2007118673A2 (de) 2007-10-25
CN101421450A (zh) 2009-04-29
WO2007118673A3 (de) 2008-04-10
EP2004886A2 (de) 2008-12-24
JP2009533565A (ja) 2009-09-17
ZA200808659B (en) 2009-11-25
MX2008013155A (es) 2009-01-12
CA2649382A1 (en) 2007-10-25

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ITG AUTOMOTIVE SAFETY TEXTILES GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RUSCHULTE, JORG;REEL/FRAME:022419/0706

Effective date: 20090311

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION