EP0953072A1 - Technical fabrics for airbags - Google Patents
Technical fabrics for airbagsInfo
- Publication number
- EP0953072A1 EP0953072A1 EP98900067A EP98900067A EP0953072A1 EP 0953072 A1 EP0953072 A1 EP 0953072A1 EP 98900067 A EP98900067 A EP 98900067A EP 98900067 A EP98900067 A EP 98900067A EP 0953072 A1 EP0953072 A1 EP 0953072A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filaments
- coarse
- dtex
- fine
- yarn
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- 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
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/446—Yarns or threads for use in automotive applications
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2976—Longitudinally varying
-
- 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
Definitions
- the present invention relates to technical fabrics, in particular for airbags, consisting of a filament yarn containing coarse and fine thermoplastic filaments with a total titer between 30 and 1000 dtex, and a method for producing the filament yarn.
- filament yarns made of polyamides or polyesters with a total denier between about 50-750 denier (56-830 dtex) are used (JP-A-01 -104848).
- Such yarns can also consist of mixtures of different raw materials.
- Various approaches have been taken to reduce air permeability. So there is a way to coat the fabric with an elastomer. Such fabrics are usually stiff, difficult and expensive to manufacture. Because of the high manufacturing costs, the reduced foldability and the limited recyclability, this solution has proven to be unsuitable.
- Another way has been proposed in the manufacture of uncoated fabrics in a denser weave and / or adapted finishing processes. However, these fabrics were unsatisfactory in terms of foldability and weight.
- the air permeability can be also improve by calendering the fabric, but with the disadvantage of additional process steps and impairment of the mechanical properties such as strength and tear resistance in the warp and weft directions.
- the production of a mixed titer yarn with a total titer of 50 to 800 dtex is also known from EP-A-0 022 065.
- the yarn produced using a spinneret with different holes for coarse and fine filaments is false twist textured and is said to have a so-called spun-like effect. It is intended for loose textile applications. It consists of a core filament group with a coarser titer and a sheath filament group with a finer titer, which is placed around the core group and a maximum of two further filaments with a single titer between 4.0 and 10 dtex.
- the spun-like yarn is not suitable for the production of fabrics with low air permeability and good tear resistance.
- the object of the invention is to provide a fabric which has a low air permeability, is light and smooth and yet an improved Tear strength, in particular an improved tear resistance.
- Another object is to provide a method for producing the filament yarn.
- the coarse filaments of the filament yarn have an individual titer of 5 to 14 dtex, in particular 5.5 to 8 dtex, preferably 6 to 8 dtex and the fine filaments an individual titer of 1.5 to 5 dtex, in particular 2.5 to 4 dtex, preferably 3 to 4 dtex.
- a mixed title yarn with a total denier between 30 and 1000 dtex, preferably between 200 and 950 dtex, ie, a yarn consisting of a mixture of finer and coarser individual filaments, especially for technical use in airbag fabrics is particularly suitable with regard to the combination of characteristics of air permeability and thus filtration capacity, softness and foldability.
- the coarse filaments help to improve the tensile strength and thus tear resistance.
- the fine filaments guarantee good foldability and thus lower flexural rigidity and thus better softness and suppleness. These advantages, particularly the softness and suppleness, result in better foldability with both uncoated and coated fabrics.
- the mixture of coarse and fine filaments contributes to a deeper one Air permeability due to the arrangement of the single filaments in the fabric. With lighter fabrics, a better seam strength is achieved at the same time, thanks to the blocking effect of the individual flames or the yarn structures, such as trilobal or other multilobal designs. Thanks to the high coverage of the fine single filaments, it is possible to work with lower thread counts in the fabric while maintaining a high tear strength / tear strength.
- the mixed yarn is produced by melt spinning through spinnerets, in which the holes for the coarse filaments and for the fine filaments are arranged alternately. This has the advantage that the coarse and fine filaments are mixed before the intermingling. As a rule, a uniform polymer is used.
- Fig. 3 shows a variant of the mixed yarn according to the invention.
- Fig. 5 shows a variant of a spinneret
- the reference numeral 1 shows a filament of a filament bundle in cross section.
- the individual filaments 1 have the same round diameter.
- a bundle of coarse filaments 1 'and fine filaments 2 is shown in FIG.
- the filaments. ', 2 are distributed over the entire cross-sectional area.
- the coarse filaments can be trilobal or multilobal.
- 4 shows the top view of the exit side of a spinneret plate 10.
- the designation 11 or 12 stands for a row or a whole bundle or a group of similar holes. Alternation is essential, which ensures that the coarse and fine filaments in the yarn are thoroughly mixed.
- FIG. 5 shows a variant of the arrangement of the bores with a right side of a spinneret plate 100 and a left side of the spinneret plate 100 ', for example two-end spinning, according to FIG. 4.
- the weaving in Lemwandbmdung was carried out on a rapier weaving machine, with a warp thread density of 18 f / cm and a weft thread density of 17.5 f / cm. This was followed by treatment in a chamber with saturated water vapor at temperatures above 100 ° C. The fabrics were dried / fixed on a stenter.
- the fabrics according to the invention, uncoated or coated, are preferably suitable for
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Air Bags (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH9897 | 1997-01-20 | ||
CH9897 | 1997-01-20 | ||
PCT/CH1998/000009 WO1998031854A1 (en) | 1997-01-20 | 1998-01-12 | Technical fabrics for airbags |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0953072A1 true EP0953072A1 (en) | 1999-11-03 |
EP0953072B1 EP0953072B1 (en) | 2002-06-19 |
Family
ID=4179207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98900067A Expired - Lifetime EP0953072B1 (en) | 1997-01-20 | 1998-01-12 | Technical fabrics for airbags |
Country Status (17)
Country | Link |
---|---|
US (1) | US6153545A (en) |
EP (1) | EP0953072B1 (en) |
JP (1) | JP2001507410A (en) |
KR (1) | KR100493342B1 (en) |
CN (1) | CN1094159C (en) |
AR (1) | AR010847A1 (en) |
AT (1) | ATE219531T1 (en) |
BR (1) | BR9806919A (en) |
DE (1) | DE59804507D1 (en) |
DK (1) | DK0953072T3 (en) |
ES (1) | ES2178138T3 (en) |
HK (1) | HK1025135A1 (en) |
ID (1) | ID21898A (en) |
PT (1) | PT953072E (en) |
SK (1) | SK285269B6 (en) |
TR (1) | TR199901744T2 (en) |
WO (1) | WO1998031854A1 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357520B (en) * | 1999-12-21 | 2004-04-28 | Du Pont | Airbag fabrics made from high denier per filament yarns |
DE50312125D1 (en) * | 2002-04-24 | 2009-12-31 | Polyamide High Performance Gmb | High-strength yarn with profiled filaments |
DE202005008939U1 (en) * | 2005-06-07 | 2005-08-04 | Trw Automotive Safety Systems Gmbh | Gas bag for use in vehicles comprises at least one wall or a part of a wall consisting of a fabric made of fibers in the form of a polymer matrix containing distributed cellulose fibrils |
US7638193B1 (en) * | 2006-10-10 | 2009-12-29 | E. I. Du Pont De Nemours And Company | Cut-resistant yarns and method of manufacture |
US20080095875A1 (en) * | 2006-10-10 | 2008-04-24 | Serge Rebouillat | Spinnerets for making cut-resistant yarns |
KR20080074019A (en) * | 2007-02-07 | 2008-08-12 | 주식회사 코오롱 | A tubular braid and compsite hollow fiber membrane using the same |
CN101608371B (en) * | 2008-06-17 | 2012-05-23 | 东丽纤维研究所(中国)有限公司 | Fabric for air bag |
CN102199827A (en) * | 2010-03-25 | 2011-09-28 | 东丽纤维研究所(中国)有限公司 | Fabric for air bags |
WO2012134227A2 (en) * | 2011-03-31 | 2012-10-04 | 코오롱인더스트리 주식회사 | Polyester fabric and method for manufacturing same |
CN103835047B (en) * | 2012-11-27 | 2016-05-25 | 东丽纤维研究所(中国)有限公司 | A kind of Wind-proof, moisture-permeability fabric |
CN103233311B (en) * | 2013-04-18 | 2015-03-11 | 可隆(南京)特种纺织品有限公司 | Air bag fabric with fewer falbalas and production method thereof |
CN104831440A (en) * | 2015-05-15 | 2015-08-12 | 苏州龙杰特种纤维股份有限公司 | High-elasticity memory type composite fiber |
DE102016009570A1 (en) * | 2016-08-05 | 2018-02-08 | Texticord Steinfort S.A. | Reinforcing material for rubber arrangements, in particular in the form of a tire cord construction and method for its production |
EP3369629A1 (en) * | 2017-03-03 | 2018-09-05 | IHC Co.,Ltd. | Seam-sealed curtain airbag cushion |
CN107263969A (en) * | 2017-05-02 | 2017-10-20 | 扬州纪元纺织有限公司 | A kind of method for preparing the special checked fabric of parachute |
CN106984097A (en) * | 2017-05-24 | 2017-07-28 | 上海创治环境科技有限公司 | A kind of many string diameter nanoscale PP melt-blown filter materials and the spinneret for manufacturing the material |
CN107380114A (en) * | 2017-06-05 | 2017-11-24 | 柳州市御朗机械制造有限公司 | Air bag |
CN108048981A (en) * | 2018-02-05 | 2018-05-18 | 张家港市隆利氨纶纱线厂 | A kind of low, non-twist cotton brocade washs double-contracting core strand line |
US11306419B2 (en) | 2019-11-18 | 2022-04-19 | Dongguan Shichang Metals Factory Ltd. | Woven fabric |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3593513A (en) * | 1967-09-05 | 1971-07-20 | Du Pont | Dyeing of mixed synthetic polymeric yarns |
CH624527B (en) * | 1979-06-07 | Schweizerische Viscose | FALSE TWIST TEXTURED FILAMENT YARN MADE FROM SYNTHETIC POLYMER. | |
US5188892A (en) * | 1986-10-31 | 1993-02-23 | E. I. Du Pont De Nemours And Company | Spun textile yarns |
US5146738A (en) * | 1987-05-15 | 1992-09-15 | Amann Und Sohne Gmbh & Co. | Thread having looped effect yarn intermingled with multi-filament core yarn |
DE8710538U1 (en) * | 1987-07-23 | 1987-10-22 | Niederrheinische Leinenweberei Carl Billmann & Soehne, 5144 Wegberg, De | |
JPH01104848A (en) * | 1987-10-16 | 1989-04-21 | Asahi Chem Ind Co Ltd | Base cloth for air bag |
DE3834139A1 (en) * | 1988-10-07 | 1990-04-19 | Hoechst Ag | TWO-COMPONENT LOOP SEWING YARN AND METHOD FOR THE PRODUCTION THEREOF |
DE4013946A1 (en) * | 1990-04-30 | 1991-10-31 | Hoechst Ag | TWISTED MULTIFILAMENT YARN FROM HIGH MODULAR SINGLE FILAMENTS AND METHOD FOR PRODUCING SUCH A YARN |
DE4121638C2 (en) * | 1990-08-17 | 1993-11-04 | Amann & Soehne | YARN, ESPECIALLY SEWING YARN, AND METHOD FOR PRODUCING SUCH A YARN |
ES2094833T3 (en) * | 1991-02-26 | 1997-02-01 | Akzo Nobel Nv | NON-COATED FABRIC FOR THE MANUFACTURE OF ANTI-IMPACT CUSHIONS (AIRBAGS). |
US5470106A (en) * | 1992-08-19 | 1995-11-28 | Teijin Limited | Air bag having a high burst strength |
EP0586951B1 (en) * | 1992-08-26 | 1999-10-06 | Hoechst Aktiengesellschaft | Bicomponent looped yarns with a fine yarn count and high strength, method of production and their use as sewing and embroidery threads |
CA2123424C (en) * | 1992-09-14 | 1999-04-06 | Kunio Nishimura | Air bag provided with reinforcing belts |
DE4324752C2 (en) * | 1993-07-23 | 1996-08-22 | Hoechst Ag | Multi-filament flat yarn with low tendency to open and good thread closure, process for the production of multi-filament flat yarn and its use |
JPH08199449A (en) * | 1995-01-12 | 1996-08-06 | Toray Ind Inc | Fabric base for non-coated air bag and air bag |
-
1997
- 1997-12-22 AR ARP970106114A patent/AR010847A1/en active IP Right Grant
-
1998
- 1998-01-12 DE DE59804507T patent/DE59804507D1/en not_active Expired - Lifetime
- 1998-01-12 US US09/331,879 patent/US6153545A/en not_active Expired - Fee Related
- 1998-01-12 TR TR1999/01744T patent/TR199901744T2/en unknown
- 1998-01-12 ES ES98900067T patent/ES2178138T3/en not_active Expired - Lifetime
- 1998-01-12 BR BR9806919-5A patent/BR9806919A/en not_active IP Right Cessation
- 1998-01-12 WO PCT/CH1998/000009 patent/WO1998031854A1/en active IP Right Grant
- 1998-01-12 AT AT98900067T patent/ATE219531T1/en active
- 1998-01-12 EP EP98900067A patent/EP0953072B1/en not_active Expired - Lifetime
- 1998-01-12 CN CN98801579XA patent/CN1094159C/en not_active Expired - Fee Related
- 1998-01-12 JP JP53347598A patent/JP2001507410A/en active Pending
- 1998-01-12 KR KR10-1999-7006514A patent/KR100493342B1/en not_active IP Right Cessation
- 1998-01-12 SK SK961-99A patent/SK285269B6/en not_active IP Right Cessation
- 1998-01-12 ID IDW990709A patent/ID21898A/en unknown
- 1998-01-12 DK DK98900067T patent/DK0953072T3/en active
- 1998-01-12 PT PT98900067T patent/PT953072E/en unknown
-
2000
- 2000-07-19 HK HK00104416A patent/HK1025135A1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9831854A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2178138T3 (en) | 2002-12-16 |
EP0953072B1 (en) | 2002-06-19 |
KR100493342B1 (en) | 2005-06-02 |
JP2001507410A (en) | 2001-06-05 |
WO1998031854A1 (en) | 1998-07-23 |
HK1025135A1 (en) | 2000-11-03 |
AR010847A1 (en) | 2000-07-12 |
PT953072E (en) | 2002-11-29 |
KR20000070286A (en) | 2000-11-25 |
DE59804507D1 (en) | 2002-07-25 |
SK96199A3 (en) | 2000-02-14 |
ID21898A (en) | 1999-08-12 |
CN1242807A (en) | 2000-01-26 |
TR199901744T2 (en) | 2000-10-23 |
CN1094159C (en) | 2002-11-13 |
DK0953072T3 (en) | 2002-10-14 |
US6153545A (en) | 2000-11-28 |
ATE219531T1 (en) | 2002-07-15 |
SK285269B6 (en) | 2006-10-05 |
BR9806919A (en) | 2000-04-18 |
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