JPH0616101A - Air bag - Google Patents
Air bagInfo
- Publication number
- JPH0616101A JPH0616101A JP4200372A JP20037292A JPH0616101A JP H0616101 A JPH0616101 A JP H0616101A JP 4200372 A JP4200372 A JP 4200372A JP 20037292 A JP20037292 A JP 20037292A JP H0616101 A JPH0616101 A JP H0616101A
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- entangled
- fibers
- synthetic fiber
- short fibers
- 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- Withdrawn
Links
- 239000000835 fiber Substances 0.000 claims abstract description 68
- 239000002759 woven fabric Substances 0.000 claims abstract description 60
- 239000004744 fabric Substances 0.000 claims abstract description 40
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 34
- 239000012209 synthetic fiber Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 8
- 230000035699 permeability Effects 0.000 claims description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- 229920006026 co-polymeric resin Polymers 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009958 sewing Methods 0.000 abstract 1
- 239000004745 nonwoven fabric Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 229920002302 Nylon 6,6 Polymers 0.000 description 8
- 230000006378 damage Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 6
- -1 polymetaphenylene isophthalamide Polymers 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920003235 aromatic polyamide Polymers 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 239000004760 aramid Substances 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- ZKNHDJMXIUOHLX-UHFFFAOYSA-N 2-ethoxy-1,1,1-trifluoroethane Chemical compound CCOCC(F)(F)F ZKNHDJMXIUOHLX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- KNUQMCFQGBKYPW-UHFFFAOYSA-N holamide Natural products O=C1C=CC2(C)C3CCC45CN(C(=O)NC)C(C)C5CCC4C3CCC2=C1 KNUQMCFQGBKYPW-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Air Bags (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は車両、特に自動車の乗員
保護用エアバッグの改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an airbag for protecting an occupant of a vehicle, particularly an automobile.
【０００２】[0002]
【従来の技術】近年、車両、特に自動車の乗員保護を目
的として図２に示す如きエアバッグ装置の使用が急速に
進められているが、従来、この種エアバッグ装置では、
袋体はナイロン６，ナイロン６６，ポリエステル等の合
成繊維、とりわけ４２０ｄ〜８４０ｄの高強力ナイロン
を用いた平織布にクロロプレンやシリコン等の合成ゴム
をコーティングした基布が用いられ、この基布を顔面接
触側基布（１０）、インフレーター取付側基布（１１）
として裁断し袋状に縫製して、インフレーター取付側基
布（１１）に通気孔（１２）を設けることによって形成
されている。2. Description of the Related Art In recent years, the use of an airbag device as shown in FIG. 2 has been rapidly promoted for the purpose of protecting occupants of vehicles, especially automobiles.
The bag body is made of synthetic fabrics such as nylon 6, nylon 66, polyester, etc., especially a plain woven fabric made of high strength nylon of 420d to 840d, coated with synthetic rubber such as chloroprene or silicone. Face contact side base cloth (10), inflator mounting side base cloth (11)
Is cut and sewn in a bag shape, and the ventilation hole (12) is provided in the inflator mounting side base cloth (11).
【０００３】ところが、平織布の場合、顔面接触側にお
いて、衝突時、乗員の顔面が直接、ざらざらした織布表
面に当接するため、擦過傷などの２次災害の恐れを有し
ていた。そこで、これに対処し、種々の検討が加えら
れ、その改良のために織布を起毛させる方法が考えられ
たが、強度低下が著しく品質上の問題があって実用に至
らなかった。一方、織布の柔軟性の面より織布の外、不
織布を用いることが試みられ、例えば織布又は不織布に
耐熱性有機フィルムの内張りを施しエアバッグに用いる
ことが提案されている。（特開平２−６３９４９号公
報）However, in the case of the plain woven fabric, the face of the occupant directly comes into contact with the rough woven fabric surface at the time of a collision on the face contact side, which may cause a secondary disaster such as abrasion. Then, in order to cope with this, various studies were added, and a method of raising a woven fabric was considered for the improvement, but it was not put into practical use due to a remarkable decrease in strength and a problem in quality. On the other hand, it has been attempted to use a non-woven fabric in addition to the woven fabric in terms of flexibility of the woven fabric. For example, it has been proposed to use a woven fabric or a non-woven fabric with a heat-resistant organic film lining for use in an airbag. (JP-A-2-63949)
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記提
案にかかるエアバッグ用基布は一般的な織布の場合には
耐熱性の問題があり、かりにアラミド繊維の利用をはか
るとしてもコストアップにつながり、実用化に難があ
る。一方、不織布にしてもスパンボンド法、フラッシュ
法などで製造されたものは、通常、バインダーを使用す
るため柔軟な風合いが損なわれ、更にポリイミドフィル
ム、メタ系又はパラ系のアラミドフィルム，ポリエーテ
ルイミドフィルム，芳香族ポリエステルフィルム等の耐
熱性有機フィルムも剛直な風合いをかもし出す問題があ
る。また、従来の高密度織布の場合には水流絡合法を利
用しようとしても水が織布を通過し難い難がある。However, the airbag base fabric according to the above-mentioned proposal has a problem of heat resistance in the case of a general woven fabric, and even if the aramid fiber is used, the cost is increased. , It is difficult to put it into practical use. On the other hand, even non-woven fabrics produced by the spunbond method, the flash method, etc., usually have a soft texture due to the use of a binder, and further have a polyimide film, a meta- or para-type aramid film, and a polyetherimide. Heat-resistant organic films such as films and aromatic polyester films also have a problem of producing a rigid texture. Further, in the case of the conventional high density woven fabric, it is difficult for water to pass through the woven fabric even if the hydroentangling method is used.
【０００５】本発明は上述の如き実状に鑑み、特に流体
交絡方式、とりわけ水流交絡法による短繊維層の絡合可
能な織布と、耐熱性樹脂のラミネートの組合せを見出す
ことにより袋体表面の柔軟さを保持し、かつ耐熱性，気
密性を確保すると共に、バッグ自体の重量の軽量化、作
成コストの低減をはかることを目的とするものである。In view of the above-mentioned circumstances, the present invention finds a combination of a woven fabric in which short fiber layers can be entangled by a fluid entanglement method, particularly a hydroentanglement method, and a laminate of a heat-resistant resin to find a bag surface. The object is to maintain flexibility and heat resistance and airtightness, reduce the weight of the bag itself, and reduce the production cost.
【０００６】[0006]
【課題を解決するための手段】即ち、上記目的に適合す
る本発明は顔面接触側基布と、インフレーター取付側基
布を袋状に縫製したエアバッグにおいて、合成繊維基布
の一面に短繊維を配しバインダーを用いることなく流体
交絡方式により個々の短繊維を絡合せしめると同時に合
成繊維織布に該短繊維を絡合し、一方短繊維と反対側の
織布には耐熱性の高い樹脂をラミネートしたエアバッグ
用基布を顔面接触側基布としてその短繊維絡合側を外面
側に、耐熱性樹脂ラミネート側を内面側に用いた構成を
特徴とする。Means for Solving the Problems That is, according to the present invention, which is adapted to the above object, an airbag in which a face contact side base cloth and an inflator mounting side base cloth are sewn in a bag shape is provided with a short fiber on one surface of a synthetic fiber base cloth. The short fibers are entangled with the synthetic fiber woven fabric while the short fibers are entangled by the fluid entanglement method without using a binder, while the woven fabric on the opposite side of the short fibers has high heat resistance. The air bag base cloth laminated with resin is used as the face contact side base cloth, and the short fiber entangled side is used as the outer surface side and the heat resistant resin laminated side is used as the inner surface side.
【０００７】ここで上記合成繊維織布はナイロン６，ナ
イロン６６，ポリエステル等の有機合成繊維が使用可能
であり、また流体交絡方式、特に水流交絡法により短繊
維を絡合し易くする上から織布はフラジール法による通
気度で４０cc／cm2 /sec以上の比較的低密度のものが有
効である。絡合する短繊維は特に制限はないが、可及的
風合のよい低デニールの繊維が好ましい。また、耐熱性
を有するラミネート樹脂は高温のインフレーターから発
生するガスによる織布の溶融破壊及び通過した熱風によ
る乗員の火傷を防止する上から耐熱性の良好なフッ素系
樹脂、例えばテトラフルオロエチレンとエチレンとの共
重合体樹脂が好適である。As the synthetic fiber woven fabric, organic synthetic fibers such as nylon 6, nylon 66, and polyester can be used, and a woven fabric is used to facilitate the entanglement of short fibers by a fluid entanglement method, particularly a hydroentanglement method. It is effective that the cloth has a relatively low density of 40 cc / cm 2 / sec or more in terms of air permeability according to the Frazier method. The short fibers to be entangled are not particularly limited, but low denier fibers having a good texture as much as possible are preferable. In addition, a heat-resistant laminated resin is a fluorine-based resin having good heat resistance, such as tetrafluoroethylene and ethylene, from the viewpoint of preventing melting destruction of the woven fabric by the gas generated from the high temperature inflator and preventing burns of an occupant due to the hot air passing through. Copolymer resins with are preferred.
【０００８】[0008]
【作用】上記本発明による構成によれば合成繊維織布の
表面に短繊維が絡合しているため織布の表面の風合が柔
らかくなると共に、高圧ジェット流による絡合がなさ
れ、接着剤が用いられていないため、硬さもなく、柔軟
さを保持する。しかも短繊維は高圧ジェット流により織
布に絡合されているため、比較的薄層で済み、エアーバ
ッグに望まれる軽量化を達成する。そして、上記基布
を、その短繊維側を顔面側として顔面接触側基布に用い
るときは織布表面の風合の柔らかさと、接着剤を用いな
い織布の柔軟さにより車両の衝突などを感知し、エアー
バッグが膨張して顔面に接触したときには緩衝効果が作
用して顔面に対する擦過傷防止につながる。According to the above-mentioned structure of the present invention, since the short fibers are entangled with the surface of the synthetic fiber woven fabric, the surface of the woven fabric is softened and entangled by the high-pressure jet flow. Since it is not used, it has no hardness and retains flexibility. Moreover, since the short fibers are entangled with the woven fabric by the high pressure jet flow, a relatively thin layer is required, and the weight reduction desired for the air bag is achieved. When the above-mentioned base cloth is used as the face contact side base cloth with the short fiber side as the face side, the softness of the texture of the woven cloth surface and the softness of the woven cloth without using an adhesive may prevent a vehicle collision or the like. When the air bag is sensed and inflated and comes into contact with the face, a cushioning effect acts to prevent scratches on the face.
【０００９】一方、内面側は耐熱性の良好な樹脂でラミ
ネートされているためインフレーターの熱風で繊維が溶
融破壊したり、熱風通過により乗員が火傷するといった
二次災害の心配もなくなる。On the other hand, since the inner surface side is laminated with a resin having good heat resistance, there is no fear of secondary damage such as the fibers being melted and broken by the hot air of the inflator, or the occupant being burned by the passage of hot air.
【００１０】[0010]
【実施例】以下、更に添付図面により本発明の実施例を
説明する。図１は本発明に係るエアーバッグ用基布の１
例を示し、図において（１）は基布、（２）は合成繊維
織布、（３）は前記合成繊維織布（２）の一面に絡合さ
れた短繊維、（４）は他面側に設けられた耐熱性を有す
る樹脂によるラミネート層である。ここで、上記合成繊
維織布（２）は従来のエアーバッグ用基布に用いられる
織布であり、織布（２）を形成する合成繊維糸条として
は、ポリエステル繊維，ナイロン６，ナイロン６６など
のポリアミド繊維，メタ系あるいはパラ系の全芳香族ポ
リアミド繊維、具体的にはポリメタフェニレンイソフタ
ルアミド，ポリパラフェニレンテレフタルアミド，パラ
系アラミドとメタ系アラミドとの共重合体、例えば３，
４′−ジアミノジフェニルエーテルを共重合したパラ系
アラミド、他にはポリパラフェニレンスルフォン，ポリ
パラフェニレンスルフィド，ポリエーテルエーテルケン
トなどからなる繊維である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an air bag base fabric 1 according to the present invention.
In the figure, (1) is a base fabric, (2) is a synthetic fiber woven fabric, (3) is a short fiber entangled on one side of the synthetic fiber woven fabric (2), and (4) is the other side. It is a laminate layer made of a heat-resistant resin provided on the side. Here, the synthetic fiber woven fabric (2) is a woven fabric used for a conventional air bag base fabric, and the synthetic fiber yarns forming the woven fabric (2) include polyester fiber, nylon 6, nylon 66. Such as polyamide fiber, meta-type or para-type wholly aromatic polyamide fiber, specifically polymetaphenylene isophthalamide, polyparaphenylene terephthalamide, copolymer of para-type aramid and meta-type aramid, for example, 3,
The fiber is a para-aramid copolymerized with 4'-diaminodiphenyl ether, and other fibers such as polyparaphenylene sulfone, polyparaphenylene sulfide, and polyether ether kent.
【００１１】これらは単独又は適宜混配合して用いら
れ、場合によってはビニロン繊維，ポリオレフィン繊
維，炭素繊維あるいはガラス繊維，セラミックス繊維な
どの無機繊維を併用使用することもできる。そして、織
布（２）は上記繊維のマルチフィラメント糸もしくは紡
績糸を用い平織，朱子織などの組織で織成することによ
って形成される。しかし、この合成繊維織布（２）は後
述する流体交絡方式により短繊維（２）を絡合するにあ
たり該絡合を容易ならしめる必要があり、密度がフラジ
ール法による通気度で４０cc／cm2 ／sce 以上のものが
好ましく、余り密度の高いものは好ましくない。なお、
フラジール法による通気度はＪＩＳによる通気性の表示
として知られるところであり、フラジール形試験機を用
い、円筒の一端に試験片を取り付けた後、加減抵抗器に
よって傾斜形気圧計が水柱1.27cm(124.5Pa) の圧力を示
すように吸い込み、吸込ファンを調整し、そのときの垂
直形気圧計の示す圧力と使用した空気孔の種類とから試
験機に付属の表によって試験片を通過する空気量cc／cm
2／sce を求めたものである。本発明における合成繊維
織布（２）はかかるフラジール法による通気度で４０cc
／cm2 ／sce 以上の通気性を有する密度、即ち比較的、
低密度のものが用いられる。These may be used alone or in admixture as appropriate, and in some cases, inorganic fibers such as vinylon fiber, polyolefin fiber, carbon fiber or glass fiber, ceramic fiber may be used together. Then, the woven cloth (2) is formed by weaving a multifilament yarn or spun yarn of the above fibers with a structure such as plain weave or satin weave. However, this synthetic fiber woven fabric (2) needs to be easily entangled when the short fibers (2) are entangled by the fluid entanglement method described later, and the density is 40 cc / cm 2 in terms of air permeability by the Frazier method. / Sce or more is preferable, and one having an excessively high density is not preferable. In addition,
The air permeability according to the Frazier method is known as an indication of air permeability according to JIS. After using a Frazier type tester to attach a test piece to one end of a cylinder, a tilt type barometer is adjusted to a water column of 1.27 cm (124.5 cm) by an adjustable resistor. (Pa) pressure, adjust the suction fan, and according to the pressure indicated by the vertical barometer at that time and the type of air hole used, the amount of air passing through the test piece according to the table attached to the tester cc /cm
2 / sce was calculated. The synthetic fiber woven fabric (2) of the present invention has an air permeability of 40 cc according to the Frazier method.
/ Cm 2 / sce or more breathable density, that is, relatively,
A low density one is used.
【００１２】一方、上記合成繊維織布（２）の一面に絡
合される前記短繊維絡合による不織布層を形成する短繊
維（３）はポリエステル繊維、あるいはナイロン６，ナ
イロン６６などのホリアミド繊維，アラミド繊維などの
繊維であり、なかでもアラミド繊維はコスト面より３０
％程度あるいはそれ以下として他繊維に混合使用するこ
とが望ましい。これら短繊維は一般的に太さ３〜５ｄで
繊維長が３０〜５０mmにカットされた繊維が好ましい
が、短繊維状に紡出したものも勿論使用可能である。そ
して、これら短繊維を図１に示す如く合成繊維織布
（２）一面に絡結合させるには流体交絡方式、例えば水
流交絡法による高圧ジェット水流が図１の矢印方向に適
用され、接着剤を用いることなく該高圧ジェット水流に
よって合成繊維織布の織目間に短繊維が絡着される。On the other hand, the short fibers (3) forming the non-woven fabric layer by the short fiber entanglement that is entangled on one surface of the synthetic fiber woven fabric (2) are polyester fibers or holamide fibers such as nylon 6 and nylon 66. , Aramid fiber, etc., and aramid fiber is 30
It is desirable to mix and use it with other fibers at about 10% or less. Generally, these short fibers are preferably fibers cut to a thickness of 3 to 5 d and a fiber length of 30 to 50 mm, but fibers spun into short fibers can of course be used. Then, in order to entangle and bond these short fibers to one surface of the synthetic fiber woven fabric (2) as shown in FIG. 1, a high-pressure jet water flow by a fluid entanglement method, for example, a water entanglement method is applied in the arrow direction of FIG. The high-pressure jet water stream entangles the short fibers between the weaves of the synthetic fiber woven fabric without using them.
【００１３】勿論、上記短繊維を合成繊維織布（２）に
絡合するだけであればニードリング等の方法もあるが、
前者は合成繊維織布を破断損傷するので好ましくなく、
また同じ流体交絡方式でもエア噴射は短繊維が飛散し、
均一な短繊維層が得難いので適切でない。従って、一般
には水流交絡法により、高圧ジェット水流を利用する方
式が用いられる。Needless to say, there is a needling method as long as the short fibers are simply entangled with the synthetic fiber woven fabric (2).
The former is not preferable because it breaks and damages the synthetic fiber woven fabric.
Even with the same fluid entanglement method, short fibers are scattered in air injection,
It is not suitable because it is difficult to obtain a uniform short fiber layer. Therefore, generally, a method utilizing a high-pressure jet water flow is used by the water entanglement method.
【００１４】水流交絡法は近時、不織布の製造法におい
て注目されている１つの方法として短繊維ウエブに対し
高圧ジェット水流をあててウエブの個々の繊維を互いに
交絡させる方法であり、このようにして形成された不織
布は接着剤を使用する必要はなく、目付の小さい薄い不
織布を得ることができると共に、均一性がよく、柔軟
性，強度，寸法安定性にすぐれ、とりわけ経緯のバラン
スのとれた強度が確保される。従って、本発明の前記図
１に示す如き基布（１）を得るにあたっては、合成繊維
織布（２）上に短繊維（３）を形成する短繊維を均一に
散布し、これに高圧ジェット水流を矢印方向にあてて該
短繊維を合成繊維織布（２）の一面に絡合させることも
可能であるが、合成繊維織布（２）に予めウエブに形成
した短繊維ウエブを積層し、これに高圧ジェット水流を
あててウエブの個々の短繊維を交絡させと同時に該短繊
維（３）を合成繊維織布（２）の織目間隙を通じて織布
に絡結合させることも可能である。勿論、予め、高圧ジ
ェット水流により交絡形成した不織布を合成繊維織布
（２）に積層し、再び高圧ジェット水流をあてて短繊維
を織布に絡合し、両者を結合させることも差し支えな
い。The hydroentanglement method has recently attracted attention as a method for producing non-woven fabrics, in which a high-pressure jet water stream is applied to a short fiber web to entangle individual fibers of the web with each other. The formed non-woven fabric does not require the use of an adhesive, and it is possible to obtain a thin non-woven fabric with a small basis weight, and also it has good uniformity, excellent flexibility, strength, and dimensional stability. The strength is secured. Therefore, in order to obtain the base fabric (1) as shown in FIG. 1 of the present invention, the short fibers forming the short fibers (3) are uniformly dispersed on the synthetic fiber woven fabric (2), and the high pressure jet is applied to the short fibers. Although it is possible to entangle the synthetic fiber woven fabric (2) with one side of the synthetic fiber woven fabric by applying a water stream in the direction of the arrow, the synthetic fiber woven fabric (2) is laminated with a short fiber web previously formed on the web. It is also possible to apply a high-pressure jet water stream to this to entangle individual short fibers of the web, and at the same time, to bind the short fibers (3) to the woven fabric through the weft gap of the synthetic fiber woven fabric (2). . Of course, it is also possible to laminate a non-woven fabric entangled by a high-pressure jet water flow in advance on the synthetic fiber woven fabric (2), apply the high-pressure jet water flow again to entangle the short fibers with the woven fabric, and combine them.
【００１５】しかして上記の如く合成繊維織布（２）の
片面に短繊維（３）による不織布層が絡合形成されるの
に対し、上記短繊維（３）の反対側の面には図に示す如
く耐熱性を有する樹脂でラミネート層（４）が形成され
る。ラミネート層（４）は耐熱性良好な樹脂であること
が必要で、最も好ましい樹脂としてはテトラフルオロエ
チレンとエチレンの共重合体（ＰＴＦＥＥ）が用いられ
るが、同効の耐熱性樹脂の使用も可能である。ラミネー
トに際しては上記ＰＴＦＥＥフイルムなど耐熱性樹脂フ
イルムを合成繊維織布（２）に対し熱融着又は既知の接
着手段によって層着してもよく、またコーティングなど
既知の手段によって層着してもよく、これらの場合、何
れも合成繊維織布の通気性は阻害される。なお、上記Ｐ
ＴＦＥＥのフイルムを接着手段によりラミネートする場
合にはＰＴＦＥＥフイルムに対し、コロナ放電処理等の
表面活性化処理を施すのが好適である。Thus, while the nonwoven fabric layer of short fibers (3) is entangled on one side of the synthetic fiber woven fabric (2) as described above, the non-woven fabric layer on the opposite side of the short fibers (3) is The laminate layer (4) is formed of a resin having heat resistance as shown in FIG. The laminate layer (4) needs to be a resin with good heat resistance, and the most preferable resin is a copolymer of tetrafluoroethylene and ethylene (PTFEEE), but a heat resistant resin with the same effect can also be used. Is. At the time of lamination, a heat-resistant resin film such as the above-mentioned PTFE film may be layered on the synthetic fiber woven fabric (2) by heat fusion or known adhesion means, or by known means such as coating. In all of these cases, the breathability of the synthetic fiber woven fabric is impaired. The above P
When a TFEE film is laminated by an adhesive means, it is preferable to subject the PTFE film to a surface activation treatment such as corona discharge treatment.
【００１６】かくして構成された基布（１）は外面側が
短繊維（３）による不織布層とし、内面側が耐熱性樹脂
によるラミネート層（４）としてエアバッグの顔面接触
側基布として用いる。勿論、内面が耐熱性であることか
らインフレーター取付側基布として使用することも可能
である。以下、更に上記基布を利用して構成したエアバ
ッグの効果確認のための実験例を揚げる。先ず、合成繊
維織布として下記Ａ，Ｂ，Ｃ，Ｄの４種の織布を作成し
た。 織布Ａ；ナイロン６６からなる平織状織布で、フラジー
ル法による通気度２cc／cm2 ／sec 織布Ｂ；ナイロン６６からなる平織状織布で、フラジー
ル法による通気度５０cc／cm2 ／sec 織布Ｃ；ナイロン６６からなる平織状織布で、フラジー
ル法による通気度0.5cc／cm2 ／sec 織布Ｄ；ポリエステルからなる平織状織布で、フラジー
ル法による通気度１００cc／cm2 ／secThe base fabric (1) thus constructed is used as a non-woven fabric layer of short fibers (3) on the outer surface side and as a laminate layer (4) of heat resistant resin on the inner surface side as a face contact side base fabric of an airbag. Of course, since the inner surface is heat resistant, it can also be used as an inflator mounting side base cloth. Hereinafter, an experimental example for confirming the effect of an airbag constructed by using the above-mentioned base fabric will be further described. First, the following four types of woven fabrics A, B, C and D were prepared as synthetic fiber woven fabrics. Plain weave-like woven fabric made of nylon 66, an air permeability of 2cc / cm 2 / sec fabric B by Frazier method; fabric A plain weave-like woven fabric made of nylon 66, aeration with Frazier method of 50cc / cm 2 / sec plain weave-like woven fabric made of nylon 66, the air permeability 0.5cc / cm 2 / sec fabric D by Frazier method; fabric C in plain weave-like woven fabric made of polyester, aeration with Frazier method of 100cc / cm 2 / sec
【００１７】一方、前記合成繊維織布の外面側不織布繊
維として３ｄ、繊維長４０mmのナイロン６６（Ｅ）と、
４ｄ、繊維長３０mmのポリエステル（Ｆ）を使用した。
また、内面側ラミネート樹脂（Ｇ）としてテトラフルオ
ロエチレンとエチレンの共重合体樹脂を用いた。そし
て、上記合成繊維各織布と、不織布繊維，内面側ラミネ
ート樹脂を組み合わせて後記表１に示す如く実施例１及
び２、比較例１〜４の各例を作り、これらについて展開
試験を行ない性能を対比した。その結果は表１の如くで
あった。表中、展開後のバッグの損傷は官能評価により
行ない、１は最も悪く、２は損傷大、３は一部損傷、４
は損傷小、５は損傷なしである。また風合は布表面の感
触と柔軟性を衝突事故の際、エアバッグに顔面が強く当
たることを想定し、硬い風合を１、柔らかい風合を５と
して官能評価した。更に火傷性評価は展開前のエアバッ
グの外面に高圧法により重合されたポリエチレンフイル
ムを貼り付け、展開後の溶融を表わし、最も溶けた状態
を１、全く溶けない状態を５として官能評価した。次に
表１を示す。 以下余白On the other hand, nylon 66 (E) having a fiber length of 40 mm and 3d as an outer surface side non-woven fiber of the synthetic fiber woven fabric,
A polyester (F) having a fiber length of 4 mm and a fiber length of 30 mm was used.
A copolymer resin of tetrafluoroethylene and ethylene was used as the inner side laminating resin (G). Then, the synthetic fiber woven fabrics, the non-woven fabric fibers, and the inner surface side laminating resin are combined to prepare each of Examples 1 and 2 and Comparative Examples 1 to 4 as shown in Table 1 below, and a development test is performed on these examples. Contrasted. The results are shown in Table 1. In the table, damage to the bag after deployment is performed by sensory evaluation, 1 is the worst, 2 is large damage, 3 is partial damage, 4
Indicates small damage and 5 indicates no damage. Regarding the texture, the feel and flexibility of the cloth surface were sensory-evaluated with 1 being a hard texture and 5 being a soft texture, assuming that the airbag hits the face strongly in the event of a collision. Further, the burnability was evaluated by affixing a polyethylene film polymerized by a high pressure method to the outer surface of the airbag before deployment and expressing melting after deployment, with 1 being the most melted state and 5 being the state not melted at all. Next, Table 1 is shown. Margin below
【００１８】[0018]
【表１】 [Table 1]
【００１９】上記表１より本発明によるものは他の各比
較例に比し何れもすぐれていることが分かる。From Table 1 above, it can be seen that the products according to the present invention are superior to the other comparative examples.
【００２０】[0020]
【発明の効果】以上のように本発明は合成繊維織布に短
繊維を流体交絡方式により絡結合させたエアーバッグ用
の、特に顔面接触側に使用する基布であり、織布表面に
短繊維が絡合しているため、織布表面の風合が柔らかく
なって、車両衝突時などでセンサーが所定の加速度を感
知し、エアーバッグが膨張し、その表面が顔面に接触し
たとしても、その接触当たりが柔らかく、緩衝効果が働
いて顔面に擦過傷を生じさせる危険性は少なく、乗員の
保護を確実ならしめる効果を有する。しかも本発明の短
繊維は水流交絡法により接着剤を用いることなく織布に
絡合されているため、接着剤硬化による顔面擦過の危険
性も全くなく、更に短繊維は薄い層で充分柔軟性，強
度，寸法安定性，耐摩耗性が得られ、従来の基布に比し
軽量化を図ることができる顕著な効果が期待される。ま
た、本発明は短繊維を絡合させた反対側の織布に耐熱性
の高い樹脂をラミネートしているため高温のインフレー
ターから発生するガスによる織布の溶融破壊や、通過し
た熱風による乗員の火傷を防止することができる効果も
ある。INDUSTRIAL APPLICABILITY As described above, the present invention is a base fabric used for an air bag, in which short fibers are entangled by a fluid entanglement method in a synthetic fiber woven fabric, particularly on the face contacting side, and the fabric surface is short. Since the fibers are entangled, the texture of the woven fabric becomes soft, and the sensor detects a predetermined acceleration at the time of a vehicle collision or the like, and even if the airbag inflates and its surface comes into contact with the face, The contact is soft, the cushioning effect works, and the risk of scratching the face is small, and it has the effect of reliably protecting the occupant. Moreover, since the short fibers of the present invention are entangled in the woven fabric by the hydroentangling method without using an adhesive, there is no risk of facial abrasion due to the adhesive curing, and the short fibers are sufficiently flexible in a thin layer. , Strength, dimensional stability, and wear resistance are obtained, and it is expected that a remarkable effect that the weight can be reduced as compared with the conventional base cloth. Further, in the present invention, since the highly heat-resistant resin is laminated on the woven fabric on the opposite side in which the short fibers are entangled, the woven fabric is melted and destroyed by the gas generated from the high temperature inflator, and the occupants of the passengers due to the hot air passing therethrough. It also has the effect of preventing burns.
【図１】本発明に係るエアーバッグ用基布の一例を示す
部分拡大断面図である。FIG. 1 is a partially enlarged cross-sectional view showing an example of a base fabric for an air bag according to the present invention.
【図２】エアーバッグの使用状態を示す説明図である。FIG. 2 is an explanatory diagram showing a usage state of an airbag.
（１） エアーバッグ基布 （２） 合成繊維織布 （３） 短繊維 （４） ラミネート層 (1) Air bag base fabric (2) Synthetic fiber woven fabric (3) Short fibers (4) Laminate layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊佐治 孝太郎 兵庫県伊丹市天津字藤ノ木100番地 東洋 ゴム工業株式会社タイヤ技術センター内 (72)発明者 尾崎 徹 愛知県西加茂郡三好町大字打越字生賀山３ 番地 東洋ゴム工業株式会社自動車部品技 術センター内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kotaro Isaji 100 Fujinoki, Tianjin, Itami City, Hyogo Prefecture, Toyo Tire & Rubber Co., Ltd. (72) Inventor Toru Ozaki Miyoshi, Nishikamo-gun, Aichi Prefecture Mountain No. 3 Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center
Claims (2)
側基布とを袋状に縫製してなるエアバッグにおいて、顔
面接触側を、外面側がフラジール法による通気度４０cc
／cm2 ／sec 以上の合成繊維織布に短繊維をバインダー
を用いることなく流体交絡方式により絡合形成され、内
面側が耐熱性を有する樹脂でラミネートされた基布によ
り構成せしめたことを特徴とするエアバッグ。1. An airbag comprising a face-contact side base fabric and an inflator-attachment side base fabric sewn into a bag shape, wherein the face-contact side is the outer side and the air permeability is 40 cc according to the Frazier method.
/ Cm 2 / sec or more synthetic fiber woven fabric short fibers are entangled by a fluid entanglement method without using a binder, and the inner surface side is made of a base fabric laminated with a heat-resistant resin. Airbag to do.
チレンとエチレンとの共重合体樹脂である請求項１記載
のエアバッグ。2. The airbag according to claim 1, wherein the resin having heat resistance is a copolymer resin of tetrafluoroethylene and ethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4200372A JPH0616101A (en) | 1992-07-02 | 1992-07-02 | Air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4200372A JPH0616101A (en) | 1992-07-02 | 1992-07-02 | Air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0616101A true JPH0616101A (en) | 1994-01-25 |
Family
ID=16423219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4200372A Withdrawn JPH0616101A (en) | 1992-07-02 | 1992-07-02 | Air bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10273002A (en) * | 1997-03-28 | 1998-10-13 | Toray Ind Inc | Base fabric for airbag and airbag |
| DE102005015078A1 (en) * | 2005-04-01 | 2006-10-05 | Trw Automotive Gmbh | Vehicle restraint system`s gas bag e.g. driver gas bag, has wall section comprising textile layer that is attached at carrier fabric and temperature-resistant as fabric, where fabric and layer represent surface interconnection |
-
1992
- 1992-07-02 JP JP4200372A patent/JPH0616101A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10273002A (en) * | 1997-03-28 | 1998-10-13 | Toray Ind Inc | Base fabric for airbag and airbag |
| DE102005015078A1 (en) * | 2005-04-01 | 2006-10-05 | Trw Automotive Gmbh | Vehicle restraint system`s gas bag e.g. driver gas bag, has wall section comprising textile layer that is attached at carrier fabric and temperature-resistant as fabric, where fabric and layer represent surface interconnection |
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|---|---|---|---|
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