JP2007138357A - Heat-resistant high-strength base cloth for airbag - Google Patents
Heat-resistant high-strength base cloth for airbag Download PDFInfo
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Abstract
Description
本発明は、収納性に優れ、かつ必要な基布強力と耐熱性を有するエアバッグ用基布に関するものである。 The present invention relates to a base fabric for an air bag having excellent storage properties and having necessary base fabric strength and heat resistance.
近年、自動車***品の一つとして急速に装着率が向上しているエアバッグは、自動車の衝突事故の際、衝撃をセンサーが感知し、インフレータから高温、高圧のガスを発生させ、このガスによってエアバッグを急激に展開させて、運転者や同乗者の身体が衝突した方向へ飛び出した際、特に頭部がハンドル、フロントガラス、ドアガラス等に衝突することを防止し保護するものである。従来、エアバッグにはクロロプレン、クロルスルフォン化オレフィン、シリコーンなどの合成ゴムを被覆したコーティング基布が、耐熱性、空気遮断性（低通気度）、難燃性が高いという理由により使用されてきた。 In recent years, airbags, which have been rapidly installed as one of the safety parts of automobiles, have detected high-pressure, high-pressure gas from the inflator when a car crash occurs. When the airbag is suddenly deployed and the body of the driver or passengers jumps out in the colliding direction, the head particularly prevents and protects the head from colliding with the handle, the windshield, the door glass and the like. Conventionally, coated base fabrics coated with synthetic rubber such as chloroprene, chlorosulfonated olefin, and silicone have been used for airbags because of their high heat resistance, air barrier properties (low air permeability), and high flame resistance. .
しかしながら、これらの合成ゴムをコーティングした基布は基布の重量が増加し、また柔軟性が満足できるものではなく製造コストも高いため、エアバッグ用織物として使用するには不具合な点が多かった。 However, the base fabrics coated with these synthetic rubbers have many problems in use as airbag fabrics because the weight of the base fabric increases and the flexibility is not satisfactory and the manufacturing cost is high. .
現在でも一部で使用されているシリコーンコーティング基布は上記不具合点がかなり改善されてはいるが、まだ満足できるものではない。 The silicone-coated base fabrics that are used in some of the present invention have been improved considerably, but are not yet satisfactory.
そこで、最近はコーティングを施さないノンコートエアバッグ用織物を使用したノンコートエアバッグが主流になっているが、更なる収納性の向上が必要とされている。収納性の向上の為に使用繊維量を低減させることが考えられるが、繊維量を低減させると基布強力が低下し、エアバッグ用基布として必要な機械特性を有することができない。 Thus, recently, non-coated airbags using non-coated airbag fabrics that are not coated have become mainstream, but further improvement in storage is required. Although it is conceivable to reduce the amount of fibers used for improving the storage property, if the amount of fibers is reduced, the strength of the base fabric is lowered, and the mechanical properties necessary for a base fabric for airbag cannot be obtained.
繊維量を低減させ、基布強力を維持する為に、高強力繊維を経糸および／または緯糸の少なくとも一部に用いた生地（例えば、特許文献１参照）や、熱可塑性繊維と高強力繊維との混撚糸から構成されたエアバッグ基布（例えば、特許文献２参照）が提案されている。 In order to reduce the amount of fibers and maintain base fabric strength, fabrics using high strength fibers as at least a part of warp and / or weft (for example, see Patent Document 1), thermoplastic fibers and high strength fibers An air bag base fabric (for example, refer to Patent Document 2) composed of a mixed twisted yarn is proposed.
しかし、上記特許文献１の場合、単に高強力繊維とナイロン繊維を交織した基布であり、実際に高温インフレータを使用した場合のそれぞれの温度における必要な基布強力について全く言及されておらず、特許文献２の場合、混撚の工程が別途必要となる為にコストアップの原因となり好ましくない。
本発明は、上記従来の方法では解決できていない収納性に優れ、かつ必要な基布強力と耐熱性を有するエアバッグ用基布を提供することにある。 An object of the present invention is to provide a base fabric for an air bag which has excellent storage properties that cannot be solved by the above-described conventional methods, and has necessary base fabric strength and heat resistance.
即ち、本発明は以下の（１）〜（３）の構成よりなる。
（１）織物からなるエアバッグ用基布であって、基布が、ポリアミド繊維からなる繊維糸条Ａと、ポリパラフェニレンベンゾビスオキサゾール繊維、アラミド繊維、及び全芳香族ポリエステル繊維からなる群から選ばれる少なくとも一種の繊維から選択された原糸強度が１５ｃＮ／ｄｔｅｘ以上の高強度繊維糸条Ｂとの交織織物であり、高強度繊維糸条Ｂの基布中の混率が１〜２０％であり、基布収納性が１４００ｃｍ３以下であり、引張強度が経緯それぞれともに以下の（式１）を満足することを特徴とするエアバッグ用基布。
ｙ≧―１．１ｘ＋７３４――――（式１）
〔但し、ｘは温度（K）であり、ｙ：引張強度（Ｎ／ｃｍ）である。ｘ＝２９８、３７３、４２３、４７３の４つの温度条件において計算し、４つの温度条件においてすべてｙが（式１）を満足する。〕
（２）基布を構成する原糸の総繊度が５０〜３５０ｄｔｅｘであることを特徴とする上記（１）に記載のエアバッグ用基布。
（３）原糸強度が７．０ｃＮ／ｄｔｅｘ〜１２ｃＮ／ｄｔｅｘの繊維糸条Ａより製織されてなる織物からなる基布において、経糸および／または緯糸の少なくとも一部に高強度繊維糸条Ｂが混用されてなり、かつ前記基布中の繊維糸条のクリンプ率が以下の（式２）及び（式３）を満足する（１）または（２）に記載のエアバッグ用基布。
ＣＷＢ−ＣＷＡ≧４．０％――――（式２）
ＣＴＢ−ＣＴＡ≧４．０％――――（式３）
（但し、ＣＷＡ：布帛中の繊維糸条Ａの経糸クリンプ率（％）
ＣＷＢ：布帛中の高強度繊維糸条Ｂの経糸クリンプ率（％）
ＣＴＡ：布帛中の繊維糸条Ａの緯糸クリンプ率（％）
ＣＴＢ：布帛中の高強度繊維糸条Ｂの緯糸クリンプ率（％）
をそれぞれ示す。）
That is, the present invention comprises the following configurations (1) to (3).
(1) Airbag base fabric made of woven fabric, wherein the base fabric is made of a fiber yarn A made of polyamide fiber, polyparaphenylenebenzobisoxazole fiber, aramid fiber, and wholly aromatic polyester fiber. It is a woven fabric with a high-strength fiber yarn B having a yarn strength selected from at least one selected fiber of 15 cN / dtex or more, and the mixing ratio in the base fabric of the high-strength fiber yarn B is 1 to 20%. A base fabric for an air bag characterized by having a base fabric storage property of 1400 cm 3 or less and a tensile strength satisfying the following (Equation 1).
y ≧ −1.1x + 734 ―――― (Formula 1)
[However, x is temperature (K) and y is tensile strength (N / cm). Calculation is performed under four temperature conditions of x = 298, 373, 423, and 473, and y satisfies (Equation 1) under the four temperature conditions. ]
(2) The base fabric for an air bag according to (1) above, wherein the total fineness of the raw yarn constituting the base fabric is 50 to 350 dtex.
(3) In a base fabric comprising a woven fabric woven from a fiber yarn A having an original yarn strength of 7.0 cN / dtex to 12 cN / dtex, a high-strength fiber yarn B is formed on at least part of the warp and / or the weft. The airbag fabric according to (1) or (2), wherein the airbag is crimped and the crimp rate of the fiber yarn in the fabric satisfies the following (Equation 2) and (Equation 3).
C WB -C WA ≧ 4.0% --- (Formula 2)
C TB -C TA ≧ 4.0% --- (Formula 3)
(However, C WA : warp crimp ratio (%) of fiber yarn A in the fabric
C WB : Warp crimp ratio (%) of high-strength fiber yarn B in the fabric
C TA : Weft crimp ratio (%) of fiber yarn A in the fabric
C TB : Weft crimp ratio (%) of high-strength fiber yarn B in the fabric
Respectively. )
本発明によれば、エアバッグ用基布として必要な機械的特性を保持しつつ、耐熱性、収納性に優れたエアバッグ用基布を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the base fabric for airbags excellent in heat resistance and storage property can be provided, hold | maintaining the mechanical characteristic required as a base fabric for airbags.
エアバッグはインフレータによって展開される。インフレータの熱によりエアバッグ用基布は高温の状態で展開される。従って、通常の常温（２９８Ｋ）下だけでの引張強度測定では、実際の展開時の基布強度を満足するかどうかは不明である。現行のエアバッグ用インフレータでの展開時には最大４７３Ｋの温度まで基布は上昇している。即ち４７３Ｋでの必要な基布強力を満足する基布が必要であり、また出力や構造によって、３７３Ｋや４２３Ｋの基布表面温度となるようなインフレータも開発されており、前述のそれぞれの温度に対応可能な基布強度を設定することはエアバッグ用基布設計において非常に重要なことである。 The airbag is deployed by an inflator. The airbag fabric is deployed at a high temperature by the heat of the inflator. Therefore, it is unclear whether or not the base fabric strength at the time of actual deployment is satisfied in the measurement of the tensile strength only under normal room temperature (298K). At the time of deployment with the current airbag inflator, the base fabric has risen to a temperature of up to 473K. In other words, a base fabric that satisfies the required base fabric strength at 473K is required, and inflators that have surface temperatures of 373K and 423K depending on the output and structure have been developed. Setting a compatible base fabric strength is very important in the design of airbag base fabrics.
以下、本発明のエアバッグ用基布について詳細に説明する。
本発明のエアバッグ用基布の特徴は織物からなり、通常のエアバッグ用繊維糸条Ａと、耐熱性・強力を向上させるための高強度繊維糸条Ｂとの交織織物である。高強度繊維糸条Ｂとしては、原糸強度が１５ｃＮ／ｄｔｅｘ以上であり、より好ましくは２０ｃＮ／ｄｔｅｘ以上である。高強度繊維糸条Ｂの原糸強度は大きいことが好ましいが、通常５０ｃＮ／ｄｔｅｘ以下である。高強度繊維糸条Ｂはアラミド繊維、全芳香族ポリエステル繊維、ポリパラフェニレンベンゾビスオキサゾール繊維からなる糸条から選択される。通常これらの糸条の破断伸度は０〜５％程度である。一方、通常のエアバッグ用繊維糸条Ａはポリアミド繊維からなる糸条である。通常これらの糸条の判断伸度は１５〜３０％程度である。ポリアミド繊維糸条のうち、特にポリヘキサメチレンアジパミド繊維糸条が機械特性、耐熱性、コストの面から最も好ましい。
Hereinafter, the airbag fabric of the present invention will be described in detail.
A feature of the airbag fabric of the present invention is a woven fabric, which is a woven fabric of normal airbag fiber yarn A and high-strength fiber yarn B for improving heat resistance and strength. As the high-strength fiber yarn B, the raw yarn strength is 15 cN / dtex or more, more preferably 20 cN / dtex or more. Although it is preferable that the high-strength fiber yarn B has a high yarn strength, it is usually 50 cN / dtex or less. The high-strength fiber yarn B is selected from yarns composed of aramid fibers, wholly aromatic polyester fibers, and polyparaphenylene benzobisoxazole fibers. Usually, the breaking elongation of these yarns is about 0 to 5%. On the other hand, a normal fiber yarn A for airbags is a yarn made of polyamide fiber. Usually, the judged elongation of these yarns is about 15 to 30%. Of the polyamide fiber yarns, polyhexamethylene adipamide fiber yarns are most preferable from the viewpoints of mechanical properties, heat resistance, and cost.
基布を構成する原糸の総繊度としては、収納性を向上させる為に、５０〜３５０ｄｔｅｘが好ましい。５０ｄｔｅｘより小さいとたとえ高強力繊維を用いたとしてもエアバッグとして要求される強力を満足しにくくなるのであまり好ましくない。３５０ｄｔｅｘより大きいと収納性が現状のエアバッグ用基布と同等程度にしかならない為にあまり好ましくない。より好ましくは１００〜３００ｄｔｅｘである。 The total fineness of the raw yarn constituting the base fabric is preferably 50 to 350 dtex in order to improve the storage property. If it is smaller than 50 dtex, even if a high strength fiber is used, it is difficult to satisfy the strength required for an airbag, which is not preferable. When it is larger than 350 dtex, the storage property is only about the same as that of the current airbag fabric, which is not preferable. More preferably, it is 100-300 dtex.
前述のそれぞれの温度で満足させる基布を作製するためには、原糸の常温（２９８Ｋ）下での強度とともに、それ以外の考慮すべき各温度（３７３Ｋ，４２３Ｋ，４７３Ｋ）での原糸の強度保持率を考慮して設計する必要がある。常温下での強度と強度保持率から最低限必要な高強度繊維の混率を求めるが、混率を上げた場合には収納性を満足できなくなる。従って、強度と収納性の両方を満足できる最適な混率範囲が存在する。高強度繊維糸条Ｂと通常のエアバッグ用繊維糸条Ａとの交織物においては、高強度繊維糸条Ｂの基布中の混率は１〜２０％である。混率が１％より小さいと強力を満足しにくくなるのであまり好ましくない。２０％より大きいと強力は満足できるが、高強度繊維糸条Ｂの特性上基布の柔らかさが失われやすくなりあまり好ましくない。混率は基布の等方性から経と緯が同一であることが好ましいが、限定されるものではない。ここでの混率とは、基布を１０ｃｍ四方に採取した時の全体の糸本数に対するそれぞれの繊維糸条の本数の割合で算出され、その混率は経、緯ともどの部分でも同一であることが好ましい。 In order to produce a base fabric that satisfies each of the aforementioned temperatures, the strength of the raw yarn at room temperature (298K) and the yarn at each other temperature (373K, 423K, 473K) to be considered It is necessary to design in consideration of strength retention. The minimum required mixing ratio of high-strength fibers is determined from the strength at normal temperature and the strength retention, but if the mixing ratio is increased, the storage property cannot be satisfied. Therefore, there exists an optimum mixture ratio range that can satisfy both strength and storage performance. In the cross fabric of the high-strength fiber yarn B and the normal fiber yarn A for airbag, the mixing ratio in the base fabric of the high-strength fiber yarn B is 1 to 20%. If the mixing ratio is less than 1%, it is difficult to satisfy the strength, which is not preferable. If it exceeds 20%, the tenacity is satisfactory, but the softness of the base fabric tends to be lost due to the characteristics of the high-strength fiber yarn B, which is not preferable. The mixing ratio is preferably the same in terms of warp and weft from the isotropic nature of the base fabric, but is not limited. The mixing ratio here is calculated by the ratio of the number of each fiber yarn to the total number of yarns when the base fabric is sampled in a 10 cm square, and the mixing ratio is the same for both the warp and the weft. preferable.
本発明では、製造する織機としては常用の織機を用いることができるが、生産性・品位の面からウォータージェットルームやエアージェットルームでの製織が好ましい。また緯方向に２種類の糸条を交互に挿入するために、例えば２個の緯糸飛送ノズル有する所謂２ノズル織機を用いて作ることもできる。 In the present invention, a conventional loom can be used as the loom to be manufactured, but weaving in a water jet room or air jet loom is preferable from the viewpoint of productivity and quality. In order to alternately insert two types of yarns in the weft direction, for example, a so-called two-nozzle loom having two weft flying nozzles can be used.
本発明においては、基布収納性が１４００ｃｍ３以下であり、かつ引張強度が経緯それぞれともに以下の（式１）を満足できる基布を作製することにより、従来では達成できていないエアバッグ用基布として必要な機械性能を備えかつ収納性に優れた基布となることを見出したものである。基布収納性においてはスペースがより厳しくなる方向であるために、１３００ｃｍ３以下がより好ましい。通常収納性を改善させると基布強度は低下してしまうが、本発明等が鋭意検討した結果、以下の（式１）を満足することにより、エアバッグ用基布として必要な基布強度を有しているということを見出したものである。
ｙ≧―１．１ｘ＋７３４――――（式１）
〔但し、ｘは温度（K）であり、ｙ：引張強度（Ｎ／ｃｍ）である。ｘ＝２９８、３７３、４２３、４７３の４つの温度条件において計算し、４つの温度条件においてすべてｙが（式１）を満足する。〕
具体的には、インフレータの温度・出力により必要な基布強度が異なるが、展開時の基布表面温度に相当する温度下での基布強度と収納性を同時に満たす基布を設計することにより、収納性に非常に優れかつ必要な機械特性を持つエアバッグ用基布を作製することができるのである。
In the present invention, by producing a base fabric having a base fabric storage capacity of 1400 cm 3 or less and satisfying the following (Equation 1) for each of the tensile strengths, a base for an airbag that has not been achieved conventionally. It has been found that the base fabric has the necessary mechanical performance as a fabric and has excellent storage properties. Since the space in the base fabric is more severe, 1300 cm 3 or less is more preferable. Usually, the base fabric strength decreases when the storage property is improved. However, as a result of intensive studies by the present invention and the like, by satisfying the following (Formula 1), the base fabric strength necessary for the airbag fabric is obtained. It has been found that it has.
y ≧ −1.1x + 734 ―――― (Formula 1)
[However, x is temperature (K) and y is tensile strength (N / cm). The calculation is performed under four temperature conditions of x = 298, 373, 423, and 473, and y satisfies (Equation 1) under the four temperature conditions. ]
Specifically, the required base fabric strength differs depending on the temperature and output of the inflator, but by designing a base fabric that simultaneously satisfies the base fabric strength and storage properties under the temperature equivalent to the base fabric surface temperature during deployment. Thus, it is possible to produce a base fabric for an air bag having excellent storage properties and necessary mechanical characteristics.
本発明では、高強度繊維糸条の基布での強力発現率を高める為に、以下の（式２）及び（式３）を満たすクリンプ率を有する基布であることが好ましい。より好ましくはクリンプ率差が５％以上である。
ＣＷＢ−ＣＷＡ≧４．０％――――（式２）
ＣＴＢ−ＣＴＡ≧４．０％――――（式３）
（但し、ＣＷＡ：布帛中の繊維糸条Ａの経糸クリンプ率（％）
ＣＷＢ：布帛中の高強度繊維糸条Ｂの経糸クリンプ率（％）
ＣＴＡ：布帛中の繊維糸条Ａの緯糸クリンプ率（％）
ＣＴＢ：布帛中の高強度繊維糸条Ｂの緯糸クリンプ率（％）
をそれぞれ示す。）
（式２）及び（式３）を満たさない場合、高強度繊維の伸度が通常のエアバッグ用繊維の伸度と比べて小さい為に、基布の引張時に高強度繊維の強力を発現する前に破断する恐れがあり、必ずしも必要な強力を発揮できるとは限らないのであまり好ましくない。
In the present invention, in order to increase the strength expression rate of the high-strength fiber yarn in the base fabric, the base fabric preferably has a crimp rate satisfying the following (formula 2) and (formula 3). More preferably, the crimp rate difference is 5% or more.
C WB -C WA ≧ 4.0% --- (Formula 2)
C TB -C TA ≧ 4.0% --- (Formula 3)
(However, C WA : warp crimp ratio (%) of fiber yarn A in the fabric
C WB : Warp crimp ratio (%) of high-strength fiber yarn B in the fabric
C TA : Weft crimp ratio (%) of fiber yarn A in the fabric
C TB : Weft crimp ratio (%) of high-strength fiber yarn B in the fabric
Respectively. )
If (Equation 2) and (Equation 3) are not satisfied, the strength of the high-strength fibers is expressed when the base fabric is pulled because the elongation of the high-strength fibers is smaller than the elongation of ordinary airbag fibers. There is a risk of breaking before, and it is not always preferable because the necessary strength cannot always be exhibited.
（式２）及び（式３）を満たすクリンプ率を有する基布を製造する方法としては、例えば高強度繊維と通常のエアバッグ用繊維とを交織する段階で、テンション差をつける方法がある。具体的には、高強度繊維のテンションを相対的に小さくすることにより、仕上がった基布のクリンプ率差をつける方法である。また別のより好ましい例としては、ポリヘキサメチレンアジパミドなどによる通常の高収縮のエアバッグ用繊維糸条と、ポリパラフェニレンベンゾビスオキサゾールなどによる低収縮の高強度繊維糸条を用いて製織後、温水や熱水中にて収縮加工を行い製造することにより、低収縮の高強度繊維が高収縮の繊維によって強制的に縮められる為に、基布としては高強度繊維糸条のクリンプ率が大きな状態を形成することができる。高強度繊維糸条原糸の沸水収縮率は通常のエアバッグ用繊維糸条の沸水収縮率より６％以上大きいことが好ましい。しかしながら、あまりに沸水収縮率差が大き過ぎるとサッカー状などと呼ばれる本発明の基布としてはあまり好ましくない外観となるので、沸水収縮率差は２０％以下としておくことが好ましい。収縮処理後の織物は乾燥熱セットされることが好ましい。 As a method for producing a base fabric having a crimp rate satisfying (Equation 2) and (Equation 3), for example, there is a method of applying a tension difference at the stage of interweaving high-strength fibers and ordinary airbag fibers. Specifically, it is a method of providing a difference in the crimp rate of the finished base fabric by relatively reducing the tension of the high-strength fibers. As another more preferable example, weaving using normal high-shrinkage fiber yarns for airbags such as polyhexamethylene adipamide and low-strength high-strength fiber yarns such as polyparaphenylene benzobisoxazole. After that, the shrinkage processing is performed in warm water or hot water, and the high-strength fibers with low shrinkage are forcibly shrunk by the fibers with high shrinkage. Can form a large state. It is preferable that the boiling water shrinkage of the high-strength fiber yarn base yarn is 6% or more larger than the boiling water shrinkage of a normal fiber yarn. However, if the boiling water shrinkage difference is too large, the appearance of the base fabric of the present invention, which is called a soccer shape, is not preferable. Therefore, the boiling water shrinkage difference is preferably 20% or less. It is preferable that the woven fabric after the shrinkage treatment is set to dry heat.
以下、実施例及び比較例により本発明を詳細に説明するが、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、本文もしくは実施例・比較例中の各物性は、次のようにして測定した。
原糸強度：ＪＩＳ―Ｌ−１０１３ ８．５．１
原糸繊度：ＪＩＳ−Ｌ−１０１３ ８．３．１
沸水収縮率：ＪＩＳ−Ｌ−１０１３ 熱水収縮率（１００℃）
クリンプ率：ＪＩＳ―Ｌ―１０９６ ８．７．２Ｂ法
引張強度：ＪＩＳ―Ｌ−１０９６ ８．１２．１Ａ法
収納性試験：ＡＳＴＭ Ｄ６４７８
EXAMPLES Hereinafter, the present invention will be described in detail with reference to examples and comparative examples. However, the present invention is not limited by the following examples as a matter of course, and is implemented with appropriate modifications within a range that can meet the purpose described above and below. Of course, any of these is also included in the technical scope of the present invention. In addition, each physical property in the text or the examples and comparative examples was measured as follows.
Raw yarn strength: JIS-L-1013 8.5.1
Original yarn fineness: JIS-L-1013 8.3.1
Boiling water shrinkage: JIS-L-1013 Hot water shrinkage (100 ° C)
Crimp rate: JIS-L-1096 8.7.2B method Tensile strength: JIS-L-1096 8.12.1A method Storage test: ASTM D6478
〔実施例１〕
沸水収縮率９．５％、総繊度１５０ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条に対して、経緯とも１０％の混率となるように沸水収縮率０．５％、総繊度２００ｄｔｅｘ、単糸数１２０本、強度３５ｃＮ／ｄｔｅｘ、伸度３．５％のポリパラフェニレンベンゾビスオキサゾール繊維糸条をウォータージェットルームで平織組織にて交織した。糸配列は経緯ともにポリヘキサメチレンアジパミド繊維糸条９本に対してポリパラフェニレンベンゾビスオキサゾール繊維糸条が１本となるように等間隔に存在させた。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。実施例１の織物はエアバッグ用基布として十分な強力を有し、収納性にも優れた物であった。
[Example 1]
A blending ratio of 10% for the polyhexamethylene adipamide fiber yarn having a boiling water shrinkage of 9.5%, a total fineness of 150 dtex, a single yarn count of 36, a strength of 8.5 cN / dtex, and an elongation of 21.0% Polyparaphenylene benzobisoxazole fiber yarn having a boiling water shrinkage of 0.5%, total fineness of 200 dtex, number of single yarns of 120, strength of 35 cN / dtex, elongation of 3.5% in a plain weave structure in a water jet loom And weaved. The yarn array was present at equal intervals so that there were nine polyhexamethylene adipamide fiber yarns and one polyparaphenylenebenzobisoxazole fiber yarn with respect to the background. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Example 1 had sufficient strength as a base fabric for an airbag and was excellent in storage properties.
〔実施例２〕
沸水収縮率９．５％、総繊度２００ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条に対して、経緯とも５％の混率となるように沸水収縮率０．５％、総繊度２５０ｄｔｅｘ、単糸数１５０本、強度３５ｃＮ／ｄｔｅｘ、伸度３．５％のポリパラフェニレンベンゾビスオキサゾール繊維糸条をウォータージェットルームで平織組織にて交織した。糸配列は経緯ともにポリヘキサメチレンアジパミド繊維糸条１９本に対してポリパラフェニレンベンゾビスオキサゾール繊維糸条が１本となるように等間隔に存在させた。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。実施例２の織物はエアバッグ用基布として十分な強力を有し、収納性にも優れた物であった。
[Example 2]
A blending ratio of 5% for the polyhexamethylene adipamide fiber yarn having a boiling water shrinkage of 9.5%, a total fineness of 200 dtex, a single yarn count of 36, a strength of 8.5 cN / dtex, and an elongation of 21.0% Polyparaphenylene benzobisoxazole fiber yarn having a boiling water shrinkage of 0.5%, total fineness of 250 dtex, number of single yarns of 150, strength of 35 cN / dtex, elongation of 3.5% in a plain woven structure in a water jet loom And weaved. The yarn array was present at equal intervals so that there was one polyparaphenylene benzobisoxazole fiber yarn with respect to 19 polyhexamethylene adipamide fiber yarns with respect to the background. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Example 2 had sufficient strength as an airbag base fabric and was excellent in storage properties.
〔実施例３〕
沸水収縮率７．５％、総繊度１５０ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条に対して、経緯とも１０％の混率となるように沸水収縮率０．５％、総繊度２００ｄｔｅｘ、単糸数１２０本、強度３５ｃＮ／ｄｔｅｘ、伸度３．５％のポリパラフェニレンベンゾビスオキサゾール繊維糸条をウォータージェットルームで平織組織にて交織した。糸配列は経緯ともにポリヘキサメチレンアジパミド繊維糸条９本に対してポリパラフェニレンベンゾビスオキサゾール繊維糸条が１本となるように等間隔に存在させた。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。実施例３の織物はエアバッグ用基布として十分な強力を有し、収納性にも優れた物であった。
Example 3
Boiling water shrinkage of 7.5%, total fineness of 150 dtex, number of single yarns of 36, strength of 8.5 cN / dtex, elongation of 21.0%, polyhexamethylene adipamide fiber yarn with 10% blending ratio Polyparaphenylene benzobisoxazole fiber yarn having a boiling water shrinkage of 0.5%, total fineness of 200 dtex, number of single yarns of 120, strength of 35 cN / dtex, elongation of 3.5% in a plain weave structure in a water jet loom And weaved. The yarn array was present at equal intervals so that there were nine polyhexamethylene adipamide fiber yarns and one polyparaphenylenebenzobisoxazole fiber yarn with respect to the background. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Example 3 had a sufficient strength as a base fabric for an air bag and was excellent in storage properties.
〔実施例４〕
沸水収縮率９．５％、総繊度２００ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条に対して、経緯とも５％の混率となるように沸水収縮率０．５％、総繊度１５０ｄｔｅｘ、単糸数９０本、強度３５ｃＮ／ｄｔｅｘ、伸度３．５％のポリパラフェニレンベンゾビスオキサゾール繊維糸条をウォータージェットルームで平織組織にて交織した。糸配列は経緯ともにポリヘキサメチレンアジパミド繊維糸条１９本に対してポリパラフェニレンベンゾビスオキサゾール繊維糸条が１本となるように等間隔に存在させた。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。実施例４の織物はエアバッグ用基布として十分な強力を有し、収納性にも優れた物であった。
Example 4
A blending ratio of 5% for the polyhexamethylene adipamide fiber yarn having a boiling water shrinkage of 9.5%, a total fineness of 200 dtex, a single yarn count of 36, a strength of 8.5 cN / dtex, and an elongation of 21.0% Polyparaphenylene benzobisoxazole fiber yarns with a boiling water shrinkage of 0.5%, total fineness of 150 dtex, number of single yarns of 90, strength of 35 cN / dtex, elongation of 3.5% in a plain weave structure in a water jet loom And weaved. The yarn array was present at equal intervals so that there was one polyparaphenylene benzobisoxazole fiber yarn with respect to 19 polyhexamethylene adipamide fiber yarns with respect to the background. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Example 4 had sufficient strength as an airbag base fabric and was excellent in storage properties.
〔比較例１〕
沸水収縮率５．５％、総繊度１５０ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条に対して、経緯とも１０％の混率となるように沸水収縮率０．５％、総繊度２００ｄｔｅｘ、単糸数１２０本、強度３５ｃＮ／ｄｔｅｘ、伸度３．５％のポリパラフェニレンベンゾビスオキサゾール繊維糸条をウォータージェットルームで平織組織にて交織した。糸配列は経緯ともにポリヘキサメチレンアジパミド繊維糸条９本に対してポリパラフェニレンベンゾビスオキサゾール繊維糸条が１本となるように等間隔に存在させた。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。比較例１の織物は収納性の優れた物であったが、クリンプ率差が小さい為に強力が劣り、エアバッグ用基布として満足できるものではなかった。
[Comparative Example 1]
A blending ratio of 10% for the polyhexamethylene adipamide fiber yarn having a boiling water shrinkage of 5.5%, a total fineness of 150 dtex, a single yarn count of 36, a strength of 8.5 cN / dtex, and an elongation of 21.0% Polyparaphenylene benzobisoxazole fiber yarn with a boiling water shrinkage of 0.5%, total fineness of 200 dtex, number of single yarns of 120, strength of 35 cN / dtex, elongation of 3.5% to a plain weave structure in a water jet loom And weaved. The yarn array was present at equal intervals so that there was one polyparaphenylene benzobisoxazole fiber yarn with respect to nine polyhexamethylene adipamide fiber yarns in the background. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Comparative Example 1 was excellent in storage properties, but the strength was inferior due to the small difference in the crimp rate, and it was not satisfactory as a base fabric for airbags.
〔比較例２〕
沸水収縮率９．５％、総繊度１５０ｄｔｅｘ、単糸数３６本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条をウォータージェットルームで平織組織にて交織した。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。比較例２の織物は収納性の優れた物であったが、強力が劣り、エアバッグ用基布として満足できるものではなかった
[Comparative Example 2]
Polyhexamethylene adipamide fiber yarn with a boiling water shrinkage of 9.5%, total fineness of 150 dtex, number of single yarns of 36, strength of 8.5 cN / dtex, elongation of 21.0% is interwoven in a plain weave structure in a water jet loom. did. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. Although the fabric of Comparative Example 2 was excellent in storage properties, the strength was inferior and it was not satisfactory as a base fabric for airbags.
〔比較例３〕
沸水収縮率９．５％、総繊度３５０ｄｔｅｘ、単糸数７２本、強度８．５ｃＮ／ｄｔｅｘ、伸度２１．０％のポリヘキサメチレンアジパミド繊維糸条をウォータージェットルームで平織組織にて交織した。これを沸水にて収縮加工し、乾燥熱セット（１４０℃）してエアバッグ用高密度織物を得た。得られた織物の物性の測定結果を表１に示す。比較例３の織物は強力を満足するが、収納性が悪くエアバッグ基布として劣っていた。
[Comparative Example 3]
Polyhexamethylene adipamide fiber yarn having a boiling water shrinkage of 9.5%, total fineness of 350 dtex, number of single yarns of 72, strength of 8.5 cN / dtex, elongation of 21.0% is interwoven in a plain weave structure in a water jet loom. did. This was shrunk with boiling water and dried and heat set (140 ° C.) to obtain a high-density fabric for airbags. Table 1 shows the measurement results of the physical properties of the resulting fabric. The fabric of Comparative Example 3 satisfied the strength but was poor as an airbag base fabric due to poor storage.
繊維糸条Ｂ：ポリパラフェニレンベンゾビスオキサゾール繊維糸条
クリンプ率Ａ：等間隔である繊維糸条Ｂの２本の中心に位置する繊維糸条Ａのクリンプ率
クリンプ率Ｂ：繊維糸条Ｂのクリンプ率
引張強度：サンプルを設置し雰囲気温度が設定温度になった後、１分経過後に測定。
表１から明らかなように、本発明の各実施例のエアバッグ用基布は、高強力で収納性、耐熱性に優れていることがわかる。 As is apparent from Table 1, it can be seen that the airbag fabric of each example of the present invention has high strength and excellent storage and heat resistance.
本発明によれば、エアバッグ用基布として必要な機械的特性を保持しつつ、耐熱性、収納性に優れたエアバッグ用基布を提供することができ、安全な自動車の提供に寄与できるものである。 ADVANTAGE OF THE INVENTION According to this invention, it can provide the base fabric for airbags excellent in heat resistance and storage property, hold | maintaining the mechanical characteristic required as a base fabric for airbags, and can contribute to provision of a safe automobile. Is.
Claims (3)
ｙ≧―１．１ｘ＋７３４――――（式１）
〔但し、ｘは温度（K）であり、ｙ：引張強度（Ｎ／ｃｍ）である。ｘ＝２９８、３７３、４２３、４７３の４つの温度条件において計算し、４つの温度条件においてすべてｙが（式１）を満足する。〕 A base fabric for an airbag made of woven fabric, wherein the base fabric is at least selected from the group consisting of a fiber yarn A made of polyamide fiber, polyparaphenylene benzobisoxazole fiber, aramid fiber, and wholly aromatic polyester fiber It is a woven fabric with a high-strength fiber yarn B selected from a kind of fiber and having a strength of 15 cN / dtex or more, and the mixing ratio in the base fabric of the high-strength fiber yarn B is 1 to 20%. An air bag base fabric having a fabric storage property of 1400 cm 3 or less and a tensile strength satisfying the following (Equation 1) for each process.
y ≧ −1.1x + 734 ―――― (Formula 1)
[However, x is temperature (K) and y is tensile strength (N / cm). The calculation is performed under four temperature conditions of x = 298, 373, 423, and 473, and y satisfies (Equation 1) under the four temperature conditions. ]
ＣＷＢ−ＣＷＡ≧４．０％――――（式２）
ＣＴＢ−ＣＴＡ≧４．０％――――（式３）
（但し、ＣＷＡ：布帛中の繊維糸条Ａの経糸クリンプ率（％）
ＣＷＢ：布帛中の高強度繊維糸条Ｂの経糸クリンプ率（％）
ＣＴＡ：布帛中の繊維糸条Ａの緯糸クリンプ率（％）
ＣＴＢ：布帛中の高強度繊維糸条Ｂの緯糸クリンプ率（％）
をそれぞれ示す。） In a base fabric made of a woven fabric made of fiber yarn A having a yarn strength of 7.0 cN / dtex to 12 cN / dtex, high-strength fiber yarn B is mixed with at least a part of warp and / or weft. The airbag fabric according to claim 1 or 2, wherein a crimp rate of the fiber yarn in the fabric satisfies the following (Equation 2) and (Equation 3).
C WB -C WA ≧ 4.0% --- (Formula 2)
C TB -C TA ≧ 4.0% --- (Formula 3)
(However, C WA : warp crimp ratio (%) of fiber yarn A in the fabric
C WB : Warp crimp ratio (%) of high-strength fiber yarn B in the fabric
C TA : Weft crimp ratio (%) of fiber yarn A in the fabric
C TB : Weft crimp ratio (%) of high-strength fiber yarn B in the fabric
Respectively. )
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127158A (en) * | 2007-11-27 | 2009-06-11 | Seiren Co Ltd | Woven fabric for airbag and airbag |
| KR20170131413A (en) | 2015-03-30 | 2017-11-29 | 도레이 카부시키가이샤 | Method for manufacturing coating bubbles for airbags, airbags and coating bubbles for airbags |
| WO2019150937A1 (en) * | 2018-01-30 | 2019-08-08 | 東レ株式会社 | Plain-weave fabric, method for manufacturing same, and stent graft |
| JP2020125558A (en) * | 2019-02-05 | 2020-08-20 | 東レ株式会社 | fabric |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633336A (en) * | 1992-07-10 | 1994-02-08 | Bridgestone Corp | Base cloth for air-bag |
| JPH09193730A (en) * | 1996-01-18 | 1997-07-29 | Teijin Ltd | Manufacture of woven fabric for air bag |
| JPH11286846A (en) * | 1998-04-01 | 1999-10-19 | Toyobo Co Ltd | Woven fabric for air bag |
| JP2001146655A (en) * | 1999-11-22 | 2001-05-29 | Asahi Kasei Corp | Base fabric for air bag |
-
2005
- 2005-11-22 JP JP2005336572A patent/JP4857730B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633336A (en) * | 1992-07-10 | 1994-02-08 | Bridgestone Corp | Base cloth for air-bag |
| JPH09193730A (en) * | 1996-01-18 | 1997-07-29 | Teijin Ltd | Manufacture of woven fabric for air bag |
| JPH11286846A (en) * | 1998-04-01 | 1999-10-19 | Toyobo Co Ltd | Woven fabric for air bag |
| JP2001146655A (en) * | 1999-11-22 | 2001-05-29 | Asahi Kasei Corp | Base fabric for air bag |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127158A (en) * | 2007-11-27 | 2009-06-11 | Seiren Co Ltd | Woven fabric for airbag and airbag |
| KR20170131413A (en) | 2015-03-30 | 2017-11-29 | 도레이 카부시키가이샤 | Method for manufacturing coating bubbles for airbags, airbags and coating bubbles for airbags |
| US10562483B2 (en) | 2015-03-30 | 2020-02-18 | Toray Industries, Inc. | Coated base fabric for an airbag, airbag, and method of producing coated base fabric for an airbag |
| WO2019150937A1 (en) * | 2018-01-30 | 2019-08-08 | 東レ株式会社 | Plain-weave fabric, method for manufacturing same, and stent graft |
| JP6610832B1 (en) * | 2018-01-30 | 2019-11-27 | 東レ株式会社 | Plain fabric, method for producing the same, and stent graft |
| JP2020125558A (en) * | 2019-02-05 | 2020-08-20 | 東レ株式会社 | fabric |
| JP7243242B2 (en) | 2019-02-05 | 2023-03-22 | 東レ株式会社 | fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4857730B2 (en) | 2012-01-18 |
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