JPH1037039A - Base fabric for non-coated air bag - Google Patents
Base fabric for non-coated air bagInfo
- Publication number
- JPH1037039A JPH1037039A JP8193671A JP19367196A JPH1037039A JP H1037039 A JPH1037039 A JP H1037039A JP 8193671 A JP8193671 A JP 8193671A JP 19367196 A JP19367196 A JP 19367196A JP H1037039 A JPH1037039 A JP H1037039A
- Authority
- JP
- Japan
- Prior art keywords
- warp
- weft
- denier
- yarn
- base fabric
- 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
Landscapes
- Air Bags (AREA)
- Woven Fabrics (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、通気度が低く且つ
柔軟で収納性も良く、しかも使用原糸量が少なく軽量で
経済性にも優れたノンコートエアバッグ用基布に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base fabric for a non-coated airbag, which has low air permeability, is flexible, has good storability, uses a small amount of raw yarns, is lightweight and is economical.
【0002】[0002]
【従来の技術】近年エアバッグは、車両衝突時における
乗員保護のための安全装備として広く普及してきてい
る。該エアバッグ用の基布としては、織物にクロロプレ
ンゴムやシリコーンゴム等を表面コートした素材が使用
されてきた。ところがこの様な表面コート織物を用いた
エアバッグは、コーティング処理に少なからぬコストア
ップを招き、しかも重くなるといった欠点があるため、
最近では表面コートを行なわないノンコート織物の検討
が進められ、その一部は実用化され始めている。2. Description of the Related Art In recent years, airbags have been widely used as safety equipment for protecting occupants in the event of a vehicle collision. As a base fabric for the airbag, a material obtained by surface-coating woven fabric with chloroprene rubber, silicone rubber, or the like has been used. However, airbags using such surface-coated fabrics have the drawback of causing considerable cost increases in the coating process and being heavy,
Recently, non-coated fabrics without surface coating have been studied, and some of them have been put into practical use.
【0003】ところが公知のノンコートエアバッグ用基
布は、表面コート基布に比べると通気度が大きいという
問題が指摘されている。そこで、表面コート処理を行な
っていないエアバッグ用基布では、織物の織密度を高め
て糸−糸間の間隙を小さくすることにより空気の漏洩を
防止する必要があるが、そうすると柔軟性が乏しくなっ
てバッグ展開時に顔面等へ損傷を与える恐れが生じる可
能性があり、また畳み込みによる収納性も悪くなり、更
には単位面積当りの原糸使用量も多くなって高重量化や
コストアップを招く。However, it has been pointed out that the known non-coated airbag fabric has a higher air permeability than the surface-coated fabric. Therefore, in an airbag base fabric that has not been subjected to a surface coating treatment, it is necessary to prevent air leakage by increasing the weaving density of the woven fabric and reducing the gap between the yarns, but this results in poor flexibility. It may cause damage to the face etc. when the bag is deployed, and the storage capacity due to folding is also worse, and the amount of yarn used per unit area is increased, resulting in higher weight and increased cost. .
【0004】[0004]
【発明が解決しようとする課題】本発明はこうした事情
に着目してなされたものであり、その目的は、特に低通
気性であると共に柔軟且つ軽量であり、しかも安価で経
済性にも優れたノンコートエアバッグ用基布を提供しよ
うとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a low air permeability, a flexible and lightweight structure, a low cost and excellent economical efficiency. An object of the present invention is to provide a base fabric for a non-coated airbag.
【0005】[0005]
【課題を解決するための手段】上記課題を解決すること
のできた本発明に係るノンコートエアバッグ用基布と
は、樹脂コート処理およびカレンダー処理が行なわれな
いノンコートエアバッグ用基布であって、トータル繊度
が140〜450デニール、単糸繊度が1〜4デニー
ル、原糸強度が8.0g/デニール以上であるマルチフ
ィラメント糸を製織してなり、経糸および緯糸のトータ
ル繊度D(デニール)と該経糸および緯糸の織物状態で
の幅W(mm)およびカバーファクター(CF)が下記
式の関係を満たすものであるところにその特徴が存在す
る。 経糸のD/W=700以下 緯糸のD/W=850以下 CF=√(経糸のトータル繊度)×経糸密度+√(緯糸
のトータル繊度)×緯糸密度=1,900〜2,300
[(デニール)1/2 ・本/インチ]Means for Solving the Problems A non-coated airbag base fabric according to the present invention which can solve the above-mentioned problems is a non-coated airbag base fabric which is not subjected to resin coating treatment and calendering treatment. A multifilament yarn having a total fineness of 140 to 450 denier, a single yarn fineness of 1 to 4 denier and a raw yarn strength of 8.0 g / denier or more is woven, and the total fineness D (denier) of the warp and the weft is determined. The feature lies in that the width W (mm) and the cover factor (CF) of the warp and the weft in the woven state satisfy the relationship of the following formula. D / W of warp = 700 or less D / W of weft = 850 or less CF = √ (total fineness of warp) × warp density + √ (total fineness of weft) × weft density = 1,900-2,300
[(Denier) 1/2 book / inch]
【0006】[0006]
【発明の実施の形態】本発明にかかるノンコートエアバ
ッグ用基布は、上記の様に基布を構成するマルチフィラ
メント糸のトータル繊度と単糸繊度、並びに原糸強度を
特定すると共に、経糸および緯糸のトータル繊度D(デ
ニール)と該経糸と緯糸の織物状態での幅W(mm)の
関係およびカバーファクター(CF)を特定することに
より、優れた空気遮断性と柔軟性を兼備すると共に、軽
量で安価なエアバッグ用基布を提供し得ることになった
ものである。以下、本発明に係る基布の構成素材につい
て説明すると共に、上記特性を定めた理由について詳述
する。BEST MODE FOR CARRYING OUT THE INVENTION The base fabric for a non-coated airbag according to the present invention specifies the total fineness and single yarn fineness of the multifilament yarn constituting the base fabric and the original yarn strength as described above. By specifying the relationship between the total fineness D (denier) of the weft, the width W (mm) of the warp and the weft in the woven state, and the cover factor (CF), it has both excellent air barrier properties and flexibility, It is possible to provide a lightweight and inexpensive base fabric for an airbag. Hereinafter, the constituent materials of the base fabric according to the present invention will be described, and the reasons for determining the above characteristics will be described in detail.
【0007】本発明で用いられる繊維としては、天然お
よび合成の如何を問わず使用可能であるが、経済性を考
慮しつつ前述の特性を満足させるうえで好ましいのは合
成繊維であり、中でもナイロン6,ナイロン66,ナイ
ロン46などのポリアミド系繊維や、ポリエチレンテレ
フタレートを主体とするポリエステル系繊維からなる長
繊維マルチフィラメント糸が好ましく用いられる。これ
らの中でも、熱容量や柔軟性の観点から特に好ましいの
は、ナイロン66やナイロン46からなる長繊維マルチ
フィラメント糸である。The fibers used in the present invention can be used irrespective of natural or synthetic, but synthetic fibers are preferred for satisfying the above-mentioned characteristics in consideration of economic efficiency. Long fiber multifilament yarns composed of polyamide fibers such as 6, nylon 66 and nylon 46 and polyester fibers mainly composed of polyethylene terephthalate are preferably used. Among them, a long fiber multifilament yarn made of nylon 66 or nylon 46 is particularly preferable from the viewpoint of heat capacity and flexibility.
【0008】該マルチフィラメント糸は、エアバッグに
要求される強度特性、中でも優れた引張強度と引裂強度
を確保することの必要上、原糸のトータル繊度が140
〜450デニールで且つ単糸繊度が1〜4デニールのも
のでなければならず、原糸のトータル繊度が140デニ
ール未満のものでは満足のいく引張強度と引裂強度を保
障できなくなり、また450デニールを超えて過度に太
くなると、基布としての柔軟性が乏しくなってバッグ展
開時に顔面等への損傷が大きくなる可能性がでてくるば
かりでなく、重量も重くなって軽量化の目的にそぐわな
くなる。また単糸繊度が1デニール未満では、単糸が強
力不足となって製織に際して特に経糸が単糸切れを起こ
し易くなり、織機の停台回数が増大して生産性を悪化さ
せたり織物としての品質が劣化し、一方、単糸繊度が4
デニールを超えて過度に太くなると、織密度を極端に高
くしなければ満足のいく低通気度が確保できなくなり、
結果的に基布としての柔軟性が低下してしまい、しかも
単位面積当りの原糸重量の増大によってコスト高になる
他、製品としての重量も重くなるので好ましくない。上
記強度特性や柔軟性、生産性、重量、コスト等を総合的
に考えて特に好ましい原糸のトータル繊度は210〜3
50デニール、単糸繊度は2〜4デニールの範囲であ
る。[0008] The multifilament yarn has a total fineness of 140 due to the strength characteristics required for an airbag, in particular, it is necessary to ensure excellent tensile strength and tear strength.
If the total fineness of the original yarn is less than 140 denier, satisfactory tensile strength and tear strength cannot be guaranteed, and 450 denier. If it is excessively thick, the flexibility as a base cloth becomes poor and not only the possibility of damage to the face and the like when the bag is deployed becomes large, but also the weight becomes heavy and it is not suitable for the purpose of weight reduction. . In addition, if the single yarn fineness is less than 1 denier, the single yarn becomes insufficiently strong, and the warp yarns are liable to break, especially during weaving, and the number of stops of the loom increases, resulting in poor productivity and quality as a woven fabric. Is deteriorated, while the fineness of single yarn is 4
If it is excessively thick beyond denier, it will not be possible to secure a satisfactory low air permeability unless the weaving density is extremely high,
As a result, the flexibility as the base fabric is reduced, and the cost is increased due to the increase in the weight of the raw yarn per unit area, and the weight as the product is also undesirably increased. Considering the above-mentioned strength characteristics, flexibility, productivity, weight, cost, etc., a particularly preferable total fineness of the raw yarn is 210-3.
50 denier, single yarn fineness is in the range of 2 to 4 denier.
【0009】また本発明で用いられるマルチフィラメン
ト糸は、前述の原糸のトータル繊度および単糸繊度に加
えて、原糸強度が8.0g/デニール以上であることが
必要であり、こうした強度特性は、エアバッグ用基布と
しての引張強度と引裂強度を保障するうえで必須の要件
となる。しかしてエアバッグの使用時においては、圧縮
空気の急速な導入によって該バッグを膨張させて衝撃緩
衝作用を与えるものであり、該バッグには圧縮空気の導
入により大きな膨張力が作用するので、該バッグ基布は
その膨張力に十分耐える強度特性を備えていなければな
らず、マルチフィラメント糸の強度が8.0g/デニー
ル未満のものでは、安全性基準を十分に満たし得なくな
るからである。本発明で使用するマルチフィラメント糸
のより好ましい糸強度は9.0g/デニール以上であ
る。In addition, the multifilament yarn used in the present invention needs to have an original yarn strength of 8.0 g / denier or more in addition to the total fineness and single yarn fineness of the above-mentioned yarn. Is an essential requirement for ensuring tensile strength and tear strength as a base fabric for an airbag. When the airbag is used, the bag is inflated by the rapid introduction of the compressed air to provide an impact buffering function. The introduction of the compressed air causes a large inflation force to act on the bag. This is because the bag base fabric must have strength characteristics enough to withstand the inflation force, and if the strength of the multifilament yarn is less than 8.0 g / denier, the safety standard cannot be sufficiently satisfied. The more preferable yarn strength of the multifilament yarn used in the present invention is 9.0 g / denier or more.
【0010】次に本発明で極めて重要なことは、上記要
件を満足するマルチフィラメント糸を経糸および緯糸と
して用いて製織した状態において、下記式によって求め
られるカバーファクター(CF)が1,900〜2,3
00の範囲であり、且つ経糸および緯糸のトータル繊度
D(デニール)とそれらの織物状態でのW(mm)とが
下記式の関係を満たすものでなければならない。 経糸のD/W=700以下、 緯糸のD/W=850以下 CF=√[経糸のトータル繊度(デニール)]×経糸密
度(本/インチ)+√[緯糸のトータル繊度(デニー
ル)]×緯糸密度(本/インチ)In the present invention, it is extremely important that the cover factor (CF) determined by the following equation is 1,900 to 2, when the multifilament yarn satisfying the above requirements is woven using the warp yarn and the weft yarn. , 3
00, and the total fineness D (denier) of the warp and the weft and the W (mm) in their woven state must satisfy the relationship of the following formula. D / W of warp = 700 or less, D / W of weft = 850 or less CF = {[total fineness of warp (denier)] × warp density (book / inch) +) [total fineness of weft (denier)] × weft Density (book / inch)
【0011】即ち上記カバーファクターとは、織物状態
での繊維の通気性を、経糸および緯糸のトータル繊度と
それらの各密度で表わした指標で、言わば織密度を表わ
しており、この値が大きいもの程、糸間の隙間が小さく
なって気密性は高まるが、反面織物としての柔軟性は低
下すると共に重くなり、逆にこの値が小さくなるにつれ
て織物としては柔軟になると共に軽量化されるが、気密
性は低下してくる。従って、適度の柔軟性を確保しつつ
十分な気密性(低通気性)を確保するには、適度のCF
値を決める必要があり、本発明者らが確認したところに
よると、該CF値が1,900〜2,300の範囲にお
いて、上記両特性を兼備したものになることが確認され
た。That is, the cover factor is an index indicating the air permeability of the fiber in the woven state by the total fineness of the warp and the weft and their respective densities. As the gap between the yarns becomes smaller, the airtightness increases and the airtightness increases, but on the other hand, the flexibility as the fabric decreases and the weight increases, and conversely as the value decreases, the fabric becomes softer and lighter, Hermeticity decreases. Therefore, in order to secure sufficient airtightness (low air permeability) while securing appropriate flexibility, it is necessary to use appropriate CF.
It is necessary to determine the value, and the present inventors have confirmed that, when the CF value is in the range of 1,900 to 2,300, both of the above characteristics are obtained.
【0012】しかしながらエアバッグ用基布としての上
記特性は、前述のCF値だけで決まってくる訳ではな
く、本発明者らが更に検討を重ねたところでは、経糸お
よび緯糸におけるトータル繊度D(デニール)と幅W
(mm)(後記図1参照)とが上記式の関係を満たすこ
とが、エアバッグとしての低通気性を評価するうえで必
須の要件になることが確認された。即ち上記設定式は、
経糸と緯糸のトータル繊度を織物状態での経糸と緯糸の
幅で割った値で、基布の平面に経糸および緯糸を構成す
る単糸1本1本がいかに幅方向に広がり、単糸−単糸間
の隙間を小さくしているかの基準を表わしており、単糸
繊度が大き過ぎたり、あるいは経糸として撚糸の如く収
束性の高い糸を使用すると、糸全体としての収束性が高
まってD/Wの値が大きくなり、満足のいく低通気性が
確保できなくなる。しかしながらこれらの値が、経糸の
D/Wについては700以下、緯糸のD/Wについては
850以下であるものは、製織後に表面コート処理やカ
レンダー加工を行なわなくとも、常に安定して優れた低
通気性が確保されることを確認した。[0012] However, the above-mentioned properties as the base fabric for an airbag are not determined only by the above-mentioned CF value, but the present inventors have further studied and found that the total fineness D (denier) of the warp and the weft yarns. ) And width W
(Mm) (refer to FIG. 1 described later) and satisfying the relationship of the above expression were confirmed to be indispensable requirements in evaluating low air permeability as an airbag. That is, the above setting formula is
The value obtained by dividing the total fineness of the warp and the weft by the width of the warp and the weft in the woven state. How the single yarns constituting the warp and the weft spread in the width direction on the plane of the base fabric, The criterion as to whether the gap between the yarns is small is expressed. If the single yarn fineness is too large, or if a highly convergent yarn such as a twisted yarn is used as the warp yarn, the convergence of the whole yarn is increased and the D / D The value of W increases, and satisfactory low air permeability cannot be secured. However, when these values are not more than 700 for the D / W of the warp and not more than 850 for the D / W of the weft, it is always stable and excellent even without performing surface coating treatment or calendering after weaving. It was confirmed that air permeability was ensured.
【0013】即ち本発明においては、エアバッグとして
の強度特性と柔軟性を確保する為の要件として、マルチ
フィラメント糸のトータル繊度や単糸繊度を規定する
他、織物状態におけるCF値と経糸および緯糸のD/W
値を規定することによって、低通気性を確保し、且つ軽
量で安価なエアバッグ用基布を提供することに成功した
ものである。That is, in the present invention, in order to secure the strength characteristics and flexibility of the airbag, the total fineness and single yarn fineness of the multifilament yarn are defined, and the CF value in the woven state, the warp and the weft are defined. D / W
By defining the values, it has been possible to secure a low air permeability and to provide a lightweight and inexpensive base fabric for an airbag.
【0014】[0014]
【実施例】以下、実施例を挙げて本発明をより具体的に
説明するが、本発明はもとより下記実施例によって制限
を受けるものではなく、前・後記の趣旨に適合し得る範
囲で適当に変更を加えて実施することも勿論可能であ
り、それらはいずれも本発明の技術的範囲に包含され
る。なお、下記実施例で採用した各種性能の試験法は下
記の通りである。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples, and the present invention is not limited thereto. Of course, the present invention can be embodied with modifications, all of which are included in the technical scope of the present invention. The test methods for various performances employed in the following examples are as follows.
【0015】織密度:JIS L 1096 6.6に
より測定 通気性:JIS L 1096 6.27.1 A(ブ
ラジール形法)により測定 剛軟度:JIS L 1096 6.19.1 A(カ
ンチレバー形法)により測定 正量 :JIS L 1096 6.4.2により測定 厚み :JIS L 1096 6.5により測定 糸の幅W(mm):JIS L 1096 3により調
製した試料の表面写真を走査型電子顕微鏡(SEM)に
よって撮影し(図1の一部拡大平面図参照)、その写真
上での単位長さを基準にして最も幅の広いところをW
1(mm)として求め、撮影倍率T(倍)で割った値を糸
の幅W(mm)とする。 W(mm)=W1 /T 経糸および緯糸のD/W:経糸および緯糸の繊度(デニ
ール)を、上記で求めた糸の幅W(mm)で割った値と
する。Weave density: Measured according to JIS L 1096 6.6 Air permeability: Measured according to JIS L 1096 6.27.1 A (Brazil type method) Bend softness: JIS L 1096 6.19.1 A (Cantilever type method) ) Measured according to JIS L 1096 6.4.2 Thickness: Measured according to JIS L 1096 6.5 Thread width W (mm): Scanning electron microscope for the surface photograph of the sample prepared according to JIS L 10963 (SEM) (see a partially enlarged plan view of FIG. 1), and the widest part based on the unit length in the photograph is W
1 (mm), and a value obtained by dividing by the photographing magnification T (times) is defined as a thread width W (mm). W (mm) = W 1 / T D / W of warp and weft: A value obtained by dividing the fineness (denier) of the warp and weft by the width W (mm) of the yarn obtained above.
【0016】実施例1 ナイロン66からなる420d/144fのマルチフィ
ラメント糸(強度:9.6g/d)を、無撚りのまま経
糸および緯糸として用いて平織物を製織し、精練、乾
燥、セット処理を行なって、経糸48本/インチ、緯糸
48本/インチ、カバーファクター(CF)1967の
織物を製造した。得られた織物の物性を後記表1に、ま
た表面の走査型電子顕微鏡(SEM)写真を図2に示
す。表1からも明らかである様に、この織物は通気性が
極めて低く、しかも剛軟度が小さくて優れた柔軟性を有
しており、エアバッグ基布として非常に優れたものであ
ることが分かる。Example 1 A plain fabric is woven using a 420d / 144f multifilament yarn of nylon 66 (strength: 9.6 g / d) as a warp yarn and a weft yarn without twisting, and scouring, drying and setting treatments are performed. To produce a woven fabric of 48 warps / inch, 48 wefts / inch, and a cover factor (CF) 1967. Table 1 below shows the physical properties of the obtained woven fabric, and FIG. 2 shows a scanning electron microscope (SEM) photograph of the surface. As is evident from Table 1, this woven fabric has extremely low air permeability, low rigidity and excellent flexibility, and is very excellent as an airbag base fabric. I understand.
【0017】実施例2 ナイロン66からなる315d/108fのマルチフィ
ラメント糸(強度:9.6g/d)を、無撚りのまま経
糸および緯糸として用いて平織物を製織し、精練、乾
燥、セット処理を行なって、経糸58本/インチ、緯糸
58本/インチ、カバーファクター(CF)2059の
織物を製造した。得られた織物の物性は後記表1に示す
通りであり、この織物は通気性が極めて低く、しかも剛
軟度が小さくて優れた柔軟性を有しており、エアバッグ
基布として非常に優れたものであることが分かる。Example 2 Weaving a plain woven fabric using a 315d / 108f multifilament yarn (strength: 9.6 g / d) made of nylon 66 as a warp and a weft without twisting, scouring, drying and setting treatment Was carried out to produce a woven fabric having a warp of 58 yarns / inch, a weft of 58 yarns / inch, and a cover factor (CF) of 2059. The physical properties of the obtained woven fabric are as shown in Table 1 below. This woven fabric has extremely low air permeability, low rigidity and excellent flexibility, and is extremely excellent as an airbag base fabric. It turns out that it is a thing.
【0018】実施例3 ナイロン66からなる210d/72fのマルチフィラ
メント糸(強度:9.6g/d)を、無撚りのまま経糸
および緯糸として用いて平織物を製織し、精練、乾燥、
セット処理を行なって、経糸74本/インチ、緯糸74
本/インチ、カバーファクター(CF)2145の織物
を製造した。得られた織物の物性は後記表1に示す通り
であり、この織物は通気性が極めて低く、しかも剛軟度
が小さくて優れた柔軟性を有しており、エアバッグ基布
として非常に優れたものであることが分かる。Example 3 A plain fabric is woven by using a 210d / 72f multifilament yarn (strength: 9.6 g / d) made of nylon 66 as a warp and a weft while being untwisted.
The setting process is performed, and the warp 74 / inch, the weft 74
A book / inch, a cover factor (CF) 2145 fabric was produced. The physical properties of the obtained woven fabric are as shown in Table 1 below. This woven fabric has extremely low air permeability, low rigidity and excellent flexibility, and is extremely excellent as an airbag base fabric. It turns out that it is a thing.
【0019】実施例4 ナイロン66からなる140d/72fのマルチフィラ
メント糸(強度:9.6g/d)を、無撚りのまま経糸
および緯糸として用いて平織物を製織し、精練、乾燥、
セット処理を行なって、経糸94本/インチ、緯糸94
本/インチ、カバーファクター(CF)2224の織物
を製造した。得られた織物の物性は後記表1に示す通り
であり、この織物は通気性が極めて低く、しかも剛軟度
が小さくて優れた柔軟性を有しており、エアバッグ基布
として非常に優れたものであることが分かる。Example 4 A plain fabric is woven by using a 140d / 72f multifilament yarn (strength: 9.6 g / d) made of nylon 66 as a warp and a weft while being untwisted.
The setting process is performed, and the warp 94 / inch, the weft 94
A book / inch, a cover factor (CF) 2224 woven fabric was produced. The physical properties of the obtained woven fabric are as shown in Table 1 below. This woven fabric has extremely low air permeability, low rigidity and excellent flexibility, and is extremely excellent as an airbag base fabric. It turns out that it is a thing.
【0020】比較例1 ナイロン66からなる420d/72fのマルチフィラ
メント糸(強度:9.6g/d)を、無撚りのまま経糸
および緯糸として用いて平織物を製織し、精練、乾燥、
セット処理を行なって、経糸54本/インチ、緯糸54
本/インチ、カバーファクター(CF)2213の織物
を製造した。得られた織物の物性は後記表1に、また表
面の走査型電子顕微鏡(SEM)写真を図3に示す。表
1からも明らかである様に、この織物の通気性は非常に
低いが、剛軟度が大きくて柔軟性に劣り、また前記実施
例1の基布に比べると単位面積当りの重量が大きく、経
済性においても好ましくないものであった。Comparative Example 1 A plain woven fabric was woven using 420d / 72f multifilament yarn (strength: 9.6 g / d) made of nylon 66 in a non-twisted state as a warp yarn and a weft yarn.
The setting process is performed, and the warp yarn 54 / inch and the weft yarn 54
A book / inch woven fabric with a cover factor (CF) 2213 was produced. The physical properties of the obtained fabric are shown in Table 1 below, and a scanning electron microscope (SEM) photograph of the surface is shown in FIG. As is clear from Table 1, the air permeability of this woven fabric is very low, but the stiffness is large and the flexibility is inferior, and the weight per unit area is larger than that of the base fabric of Example 1. However, it was not preferable in terms of economy.
【0021】比較例2 ナイロン66からなる315d/108fのマルチフィ
ラメント糸(強度:9.6g/d)を使用し、経糸は撚
糸品(s撚:70T/m)、緯糸は無撚のまま用いて平
織物を製織し、精練、乾燥、セット処理を行なって、経
糸58本/インチ、緯糸58本/インチ、カバーファク
ター(CF)2059の織物を製造した。得られた織物
における経糸のD/Wは716、緯糸のD/Wは851
であった。この織物の物性は後記表1に示す通りであ
り、通気性が非常に高くてエアバッグ用基布としては実
用にそぐわない。Comparative Example 2 A 315d / 108f multifilament yarn (strength: 9.6 g / d) made of nylon 66 was used, a warp yarn was used as a twisted product (s twist: 70 T / m), and a weft was used without twisting. A plain woven fabric was woven, refined, dried, and set to produce a woven fabric of 58 warps / inch, 58 wefts / inch, and a cover factor (CF) of 2059. The D / W of the warp in the obtained woven fabric is 716, and the D / W of the weft is 851.
Met. The physical properties of this woven fabric are as shown in Table 1 below. The woven fabric has a very high air permeability and is not practical for an airbag base fabric.
【0022】比較例3 ナイロン66からなる315d/72fのマルチフィラ
メント糸(強度:9.6g/d)を使用し、無撚のまま
経糸および緯糸として用いて平織物を製織し、精練、乾
燥、セット処理を行なって、経糸64本/インチ、緯糸
61本/インチ、カバーファクター(CF)2219の
織物を製造した。得られた織物の物性は下記表1に示す
通りであり、通気性は非常に低いが、剛軟度が大きくて
柔軟性に劣り、また前記実施例2の基布に比べると単位
面積当りの重量が大きく、経済性においても好ましくな
いものであった。Comparative Example 3 Using a 315d / 72f multifilament yarn (strength: 9.6 g / d) made of nylon 66, weaving a plain fabric using untwisted warp and weft yarns, scouring, drying, The setting process was performed to produce a woven fabric of 64 warps / inch, 61 wefts / inch, and a cover factor (CF) 2219. The physical properties of the obtained woven fabric are as shown in Table 1 below, and although the air permeability is very low, the stiffness is large and the flexibility is inferior, and the fabric per unit area is smaller than that of the base fabric of Example 2. The weight was large, and it was not preferable in terms of economy.
【0023】[0023]
【表1】 [Table 1]
【0024】[0024]
【発明の効果】本発明は以上の様に構成されており、基
布を構成するマルチフィラメント糸のトータル繊度と単
糸繊度、並びに原糸強度を特定すると共に、織物状態で
のカバーファクター(CF)と経糸および緯糸のトータ
ル繊度D(デニール)と幅W(mm)の関係を特定する
ことにより、優れた空気遮断性と柔軟性を兼備すると共
に、軽量で安価なエアバッグ用基布を提供し得ることに
なった。According to the present invention, the total fineness and single yarn fineness of the multifilament yarn constituting the base fabric and the original yarn strength are specified, and the cover factor (CF) in the woven state is specified. ) And the relationship between the total fineness D (denier) and the width W (mm) of the warp and weft yarns, thereby providing a lightweight and inexpensive base fabric for airbags that has both excellent air-blocking properties and flexibility. I can do it.
【図1】エアバッグ用基布を構成する織物の一部拡大平
面図である。FIG. 1 is a partially enlarged plan view of a fabric constituting a base fabric for an airbag.
【図2】実施例で得たエアバッグ用基布の織り組織を示
す走査型電子顕微鏡写真(60倍)である。FIG. 2 is a scanning electron micrograph (× 60) showing a woven structure of an airbag base fabric obtained in an example.
【図3】比較例で得たエアバッグ用基布の織り組織を示
す走査型電子顕微鏡写真(60倍)である。FIG. 3 is a scanning electron micrograph (× 60) showing a woven structure of a base fabric for an airbag obtained in a comparative example.
Claims (1)
行なわれないノンコートエアバッグ用基布であって、ト
ータル繊度が140〜450デニール、単糸繊度が1〜
4デニール、原糸強度が8.0g/デニール以上である
マルチフィラメント糸を製織してなり、経糸および緯糸
のトータル繊度D(デニール)と該経糸および緯糸の織
物状態での幅W(mm)およびカバーファクター(C
F)が下記式の関係を満たすことを特徴とするノンコー
トエアバッグ用基布。 経糸のD/W=700以下 緯糸のD/W=850以下 CF=√(経糸のトータル繊度)×経糸密度+√(緯糸
のトータル繊度)×緯糸密度=1,900〜2,300
[(デニール)1/2 ・本/インチ]1. A non-coated airbag base fabric which is not subjected to a resin coating treatment and a calendering treatment, and has a total fineness of 140 to 450 denier and a single yarn fineness of 1 to 1.
A multifilament yarn having a denier of 4 g and a yarn strength of 8.0 g / denier or more is woven. The total fineness D (denier) of the warp and the weft, the width W (mm) of the warp and the weft in the woven state, and Cover factor (C
F) which satisfies the following relationship: D / W of warp = 700 or less D / W of weft = 850 or less CF = √ (total fineness of warp) × warp density + √ (total fineness of weft) × weft density = 1,900-2,300
[(Denier) 1/2 book / inch]
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19367196A JP3144307B2 (en) | 1996-07-23 | 1996-07-23 | Base cloth for non-coated airbag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19367196A JP3144307B2 (en) | 1996-07-23 | 1996-07-23 | Base cloth for non-coated airbag |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1037039A true JPH1037039A (en) | 1998-02-10 |
JP3144307B2 JP3144307B2 (en) | 2001-03-12 |
Family
ID=16311854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19367196A Expired - Lifetime JP3144307B2 (en) | 1996-07-23 | 1996-07-23 | Base cloth for non-coated airbag |
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JP (1) | JP3144307B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004060066A (en) * | 2002-07-25 | 2004-02-26 | Toray Ind Inc | Dyed woven fabric and method for producing the same |
KR20160128399A (en) | 2014-03-14 | 2016-11-07 | 도레이 카부시키가이샤 | Airbag base fabric and manufacturing method therefor |
CN111801454A (en) * | 2018-02-28 | 2020-10-20 | 东洋纺株式会社 | Non-coated airbag base fabric, and airbag using the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107429445A (en) | 2015-04-03 | 2017-12-01 | 东洋纺株式会社 | Fabric for safety air bag and air bag |
-
1996
- 1996-07-23 JP JP19367196A patent/JP3144307B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004060066A (en) * | 2002-07-25 | 2004-02-26 | Toray Ind Inc | Dyed woven fabric and method for producing the same |
JP4599790B2 (en) * | 2002-07-25 | 2010-12-15 | 東レ株式会社 | Method for producing dyed fabric |
KR20160128399A (en) | 2014-03-14 | 2016-11-07 | 도레이 카부시키가이샤 | Airbag base fabric and manufacturing method therefor |
US10543803B2 (en) | 2014-03-14 | 2020-01-28 | Toray Industries, Inc. | Airbag base fabric and manufacturing method therefor |
CN111801454A (en) * | 2018-02-28 | 2020-10-20 | 东洋纺株式会社 | Non-coated airbag base fabric, and airbag using the same |
US11746446B2 (en) | 2018-02-28 | 2023-09-05 | Toyobo Co., Ltd. | Non-coated airbag base fabric, coated airbag base fabric, and airbag using same |
Also Published As
Publication number | Publication date |
---|---|
JP3144307B2 (en) | 2001-03-12 |
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