JP4106589B2 - Bag-woven airbag base fabric and airbag manufacturing method - Google Patents

Bag-woven airbag base fabric and airbag manufacturing method Download PDF

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JP4106589B2
JP4106589B2 JP2001384866A JP2001384866A JP4106589B2 JP 4106589 B2 JP4106589 B2 JP 4106589B2 JP 2001384866 A JP2001384866 A JP 2001384866A JP 2001384866 A JP2001384866 A JP 2001384866A JP 4106589 B2 JP4106589 B2 JP 4106589B2
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bag
base fabric
airbag
yarn
weft
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JP2003193350A (en
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松井まり子
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Toyobo Co Ltd
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Toyobo Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は自動車用安全装置の一つであるエアバッグに関するものであり、輸送車両における搭乗者を正面保護または側面保護するために特に有益なエアバッグに関するものである。
【0002】
【従来の技術】
近年、自動車***品の一つとしてエアバッグは乗員の安全意識の向上に伴い、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、インフレーターから高温及び/または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、乗員保護に役立つものである。
【0003】
従来、エアバッグには運転席用、助手席用の正面からの衝突時に乗員を保護するものが装着されてきたが、最近では側面からの衝突にも対応できるエアバッグが開発されてきた。
【0004】
運転席用、助手席用のエアバッグは従来2枚のエアバッグ基布を縫製することによって、作製されている。しかし、最近、エアバッグの性能向上および製造コストの削減から製織段階で袋体を形成することが出来る袋織り技術が注目されている。袋織エアバッグは、その利点によりエアバッグ縫製工程は省くことができる。しかし、縫製工程で行っていたエアバッグへの自動車部材等取付け位置印付けが困難となり、そのため、袋織エアバッグを正確にインフレーターや自動車部材へ取り付ける作業やエアバッグに付属品を取り付ける作業性が低下した。
【0005】
また、袋織り基布はその性質上基布の段階で袋が形成されており、裁断時にカットミスが起こると、袋部分の損傷へ繋がり、ロス率が急激に増加する可能性が高く、裁断時に細心の注意を払わなければならない。
【0006】
【発明が解決しようとする課題】
運転席用および助手席用袋織りエアバッグの場合、数秒から10秒程度の内圧保持が不必要なため、通常軽量、コンパクト化を目的としてノンコート布が用いられている。そのため、低通気性の高密度織物が必要とされている。また、運転席用および助手席用および側面保護用のどの袋織りエアバッグも、展開した際1重部と2重部のつなぎ目で目ずれが起こり、空気漏れやインフレーターからの残さの飛び出しが大きな問題となっている。この問題を解決するため高密度織物が必要とされている。
【0007】
そのため、特開平5−2131382号公報のように、袋部内の織組織を変更して目印をつけると、該目印部組織と袋部地組織のクリンプ率の違い等から糸の緩み及び/またはつりが起こり、袋部基布のフラット性が得られず、更には通気度も上昇する。よって、高密度織物の利点を十分に発揮することが出来ない。
【0008】
また、特許26666580号に、目的は異なるが色糸を用いる手法がある。しかしこれは、色糸を用いる場所を経糸、緯糸のどちらにも規定していない。高密度織物の場合、経糸のテンションむらは、基布の製織性を損ね、品位を低下させるため、経糸は同一糸を用いなければならない。よって、この方法では経糸に色糸を入れることによる品位悪化をまぬがれない。
【0009】
さらに、袋織エアバッグの場合、製織段階で既にエアバッグが形成されるため、該エアバッグに裁断開始点や、インフレーター・自動車部材への取付け位置印が無ければ、後工程での取扱い性が低下し、製品として仕上がったエアバッグシステムがバラツキの多いものとなる。
【0010】
本発明は、上記のような問題を解決すべく、エアバッグ本来の性能に影響を及ぼさず、容易にかつ正確にエアバッグを生産することのできる袋織エアバッグ基布及びエアバッグの製造方法を提供することを目的とするものである。
【0011】
【課題を解決するための手段】
上記課題を解決するための手段、即ち、本発明の第1は、袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布であり、
【0012】
その第2は、袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布を用いたエアバッグの製造方法であり、
【0013】
その第3は、袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する経糸及び緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布であり、
【0014】
その第4は、袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する経糸及び緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布を用いたエアバッグの製造方法である。
【0015】
【発明の実施の形態】
本発明の袋織りエアバッグ基布を構成する原糸は、特に素材を限定するものではないが、特にナイロン66、ナイロン6、ナイロン46、ナイロン12などの脂肪族ポリアミド繊維、アラミド繊維のような芳香族ポリアミド繊維、ポリエチレンテレフタレートやポリブチレンテレフタレートなどのホモポリエステルが使用される。他には全芳香族ポリエステル、超高分子量ポリエチレン繊維、PPS繊維、ポリエーテルケトン繊維などが挙げられる。ただし、経済性を勘案するとポリエステル繊維、ポリアミド繊維(ナイロン66、ナイロン6、ナイロン46)が特に好ましい。また、これらの合成繊維には原糸製造工程や後加工工程での工程通過性を向上させるために、各種添加剤を含有しても何ら問題はない。例えば、酸化防止剤、熱安定剤、平滑剤、帯電防止剤、増粘剤、難燃剤などである。
【0016】
また、通気度低下や目ずれ防止のためのコート剤、ラミネート材としては特に限定するものではなく、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塗付またはゴム状のものを接着剤を介してコーティング及び/またはラミネートしても良いし、接着剤を介さずそのままコーティング及び/またはラミネートすることも可能である。
【0017】
また、製織の際使用される織機についても特に限定はなく、例えばウォータージェットルーム、エアージェットルーム、レピアルーム、プロジェクタイルルームなどが使用される。しかし、織生産性、経糸へのダメージ、糸汚れなどを考慮するとウォータージェットルーム、エアージェットルームが特に好ましい。
【0018】
また、袋織りの柄を決定する際には、ジャカード装置やドビー装置が用いられる。特に複雑な柄出しをするためには、ジャカード装置(電子式、機械式)が必要となり、更に生産性、柄変更の容易さより電子式ジャカード装置が好ましい。
【0019】
本発明でいう袋織とは、2重織組織限らず、3重織、4重織のような多重織全般を指すものであり、織密度を考慮すると4重織までの多重織が好ましく、より好ましくは2重織である。
【0020】
用いる色糸の色彩に関しては、使用する緯糸と色彩が異なれば構わないが、緯糸と同系色ではない色彩の糸がより好ましく、更に好ましくは経糸、緯糸とも異なる色彩で、経糸、緯糸とも同系色ではない色彩の色糸である。
【0021】
以下、本発明の袋織エアバッグ基布及びエアバッグの好ましい例を添付図面を参照して詳述する。
【0022】
図1、図2、図3の例は、今回使用した袋織エアバッグ基布の模式図である。形状等の因子を省くため、バッグの複雑な形状は取り入れず、簡単化した図面とした。1が袋部(多重布部)、2が接結一重部である。
【0023】
【実施例】
次に実施例により、本発明を更に詳細に説明する。なお、実施例、比較例中の物性は下記の方法で評価した。
【0024】
製織性:24時間製織後その停台回数を1時間あたりに換算し、◎が0〜1回/h、○が2〜3回/h、△が4〜5回/h、×が6回以上/hで製織性の評価とした。
【0025】
基布品位:製織、加工後、コート前の基布品位を調査。基布品位は主に、経糸、緯糸に起因する欠点を中心に、毛羽、単糸切れ、シワ、ツリ等を検査し、判定は、◎:大変良好、○:良好、△:普通、×:悪いとした。
【0026】
裁断作業性:コーティング後のエアバッグ基布を裁断する際の作業性、すなわち如何に正確に短時間で効率良く裁断出来るかを評価し、単位時間あたりの仕上がりバッグ数と、仕上がったバッグの形状品位(設定形状とのズレ)を総合的に判断して、◎:大変良好、○:良好、△:普通、×:悪いとした。
【0027】
【実施例1】
経、緯糸に350dtex/108fのナイロン66フィラメント原糸を用い、エアージェットルームと電子ジャカード装置を用いて図1のエアバッグ図面を2重織エアバッグ基布として製織した。使用した原糸の色は、経糸、緯糸ともに白色で、図1−1袋部は平織、図1−2接結一重部は3×3バスケット組織にて形成し、加工後袋部密度が経60本/in,緯60本/inになるよう袋織にて製織後、沸水収縮工程を通過させ、引き続き乾燥、セット工程を経て加工反を作製した。また、色糸は図1の示す通り、袋部と袋部の間にバッグの切り出し、切り終わり位置となる部分に緯糸のみで黒色糸を挿入した。織物の物性は表1に示す。
【0028】
【実施例2】
経、緯糸に350dtex/108fのナイロン66フィラメント原糸を用い、エアージェットルームと電子ジャカード装置を用いて図1のエアバッグ図面を2重織エアバッグ基布として製織した。使用した原糸の色は、経糸が白色、緯糸が黒色で、図1−1袋部は平織、図1−2接結一重部は3×3バスケット組織にて形成し、加工後袋部密度が経60本/in,緯60本/inになるよう袋織にて製織後、沸水収縮工程を通過させ、引き続き乾燥、セット工程を経て加工反を作製した。また、色糸は図1の示す通り、袋部と袋部の間にバッグの切り出し、切り終わり位置となる部分に緯糸のみで白色糸(経糸と同色)を挿入した。織物の物性は表1に示す。
【0029】
【実施例3】
経、緯糸に350dtex/108fのナイロン66フィラメント原糸を用い、エアージェットルームと電子ジャカード装置を用いて図1のエアバッグ図面を2重織エアバッグ基布として製織した。使用した原糸の色は、経糸、緯糸ともに白色で、図1−1袋部は平織、図1−2接結一重部は3×3バスケット組織にて形成し、加工後袋部密度が経60本/in,緯60本/inになるよう袋織にて製織後、沸水収縮工程を通過させ、引き続き乾燥、セット工程を経て加工反を作製した。また、色糸は図1の示す通り、袋部と袋部の間にバッグの切り出し、切り終わり位置となる部分に緯糸のみで薄黄色糸を挿入した。織物の物性は表1に示す。
【0030】
【比較例1】
経、緯糸に350dtex/108fのナイロン66フィラメント原糸を用い、エアージェットルームと電子ジャカード装置を用いて図2のエアバッグ図面を2重織エアバッグ基布として製織した。使用した原糸の色は、経糸、緯糸ともに白色で、図2−1袋部は平織、図2−2接結一重部は3×3バスケット組織にて形成し、加工後袋部密度が経60本/in,緯60本/inになるよう袋織にて製織後、沸水収縮工程を通過させ、引き続き乾燥、セット工程を経て加工反を作製した。また、色糸は図2の示す通り、バッグの左右切り出し、切り終わり位置となる部分に経糸のみで黒色糸を挿入した。織物の物性を表1に示す。
【0031】
【比較例2】
経、緯糸に350dtex/108fのナイロン66フィラメント原糸を用い、エアージェットルームと電子ジャカード装置を用いて図3のエアバッグ図面を2重織エアバッグ基布として製織した。使用した原糸の色は、経糸、緯糸ともに白色で、図3−1袋部は平織、図3−2接結一重部は3×3バスケット組織にて形成し、加工後袋部密度が経60本/in,緯60本/inになるよう袋織にて製織後、沸水収縮工程を通過させ、引き続き乾燥、セット工程を経て加工反を作製した。織物の物性を表1に示す。
【0032】
【表1】

Figure 0004106589
【0033】
表1の実施例1、2及び比較例1からわかるように、色糸によって裁断開始点を印し付けしている場合、裁断作業性は良好であるが、比較例3のように、全く印し付けが無い場合は裁断効率が落ちるだけでなく、仕上がったバッグの形状ムラが多く、ロス率の増加へつながる。
【0034】
実施例2の場合、色糸の色彩の違いは緯糸とのみであり、経、緯糸共の色彩と異なる色糸を使用する実施例1とで比較すると、色糸を入れる効果は実施例1の方が高く、実施例2ではその効果が減少するが、切り出し位置を判別する程度は可能であるため、裁断作業性には問題は無く、良好である。また、実施例3の場合、用いた色糸の色彩が経糸、緯糸と同系色であったため、実施例1、2と比較すると、色彩を入れることによる目印効果が減少したが、裁断作業性に悪影響はなく、作業性は普通であった。
【0035】
また、比較例1では、経糸に色糸を用いているため、地の経糸とのテンション差が出て、経糸ツリ現象が起こった。また、そのツリから派生した経糸単糸切れ、毛羽が増加し、基布品位は悪化した。
【0036】
実施例1の場合、上記に記したように裁断開始点を色糸で印し付けしているだけでなく、その色糸を緯糸でのみ挿入しているため、製織性にも問題なく、基布品位も良好なままとなり、安全性に優れたエアバッグとなる。
【0037】
【発明の効果】
本発明によれば、エアバッグの性能に影響を及ぼすことなく、エアバッグの裁断作業性に優れ、設計通り正確な形状に裁断出来るため、最終的には安全性に優れたエアバッグを供給することができる。
【図面の簡単な説明】
【図1】本発明による袋織りエアバッグ基布の一例(実施例)を示す平面図である。
【図2】本発明による袋織りエアバッグ基布の一例(比較例1)を示す平面図である。
【図3】本発明による袋織りエアバッグ基布の一例(比較例2)を示す平面図である。
【符号の説明】
1:袋部
2:エアバッグ作動時に袋体として膨張しない部分[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an airbag that is one of safety devices for automobiles, and more particularly to an airbag that is particularly useful for protecting a passenger in a transportation vehicle from the front or side.
[0002]
[Prior art]
In recent years, as an automobile safety component, an airbag has been rapidly installed with an improvement in the safety awareness of passengers. In the case of an automobile crash, an air bag detects an impact by a sensor, generates a high-temperature and / or high-pressure gas from an inflator, and abruptly deploys the air-bag by this gas, which is useful for occupant protection.
[0003]
Conventionally, airbags for driver's seat and passenger's seat that protect passengers in the event of a collision from the front have been mounted, but recently, airbags that can cope with a collision from the side have been developed.
[0004]
Conventionally, airbags for driver seats and passenger seats are manufactured by sewing two airbag base fabrics. However, recently, a bag weaving technique that can form a bag body at the weaving stage has attracted attention because of the performance improvement of the airbag and the reduction of the manufacturing cost. The bag woven airbag can omit the airbag sewing process due to its advantages. However, it is difficult to mark the mounting position of automobile parts, etc., on the airbag, which has been used in the sewing process, and as a result, the work of attaching the bag-woven airbag to the inflator and automobile parts accurately and the work of attaching accessories to the airbag are reduced did.
[0005]
In addition, the bag weave base fabric is formed at the stage of the base fabric due to its nature, and if a cut mistake occurs during cutting, the bag portion is likely to be damaged, and the loss rate is likely to increase rapidly. Sometimes you have to be very careful.
[0006]
[Problems to be solved by the invention]
In the case of a woven airbag for a driver seat and a passenger seat, it is not necessary to maintain an internal pressure for several seconds to about 10 seconds, and therefore, an uncoated cloth is usually used for the purpose of light weight and compactness. Therefore, there is a need for a low-breathable high-density fabric. In addition, all woven airbags for driver seats, passenger seats, and side protections cause misalignment at the joint between the single part and double part when deployed, resulting in large air leaks and jumping out of the residue from the inflator It is a problem. In order to solve this problem, a high density fabric is required.
[0007]
Therefore, as in Japanese Patent Application Laid-Open No. 5-213382, when a mark is made by changing the woven structure in the bag part, loosening and / or suspension of the yarn is caused by the difference in the crimp rate between the mark part structure and the bag part ground structure. As a result, the flatness of the bag base fabric cannot be obtained, and the air permeability also increases. Therefore, the advantages of the high density fabric cannot be fully exhibited.
[0008]
Japanese Patent No. 26666580 has a method of using colored yarn for different purposes. However, this does not stipulate where the colored yarn is used for either warp or weft. In the case of a high-density fabric, the warp tension unevenness impairs the weaving property of the base fabric and lowers the quality, so the warp must use the same yarn. Therefore, in this method, the deterioration of quality due to adding colored yarn to the warp cannot be avoided.
[0009]
Furthermore, in the case of a bag-woven airbag, since the airbag is already formed at the weaving stage, if the airbag does not have a cutting start point or an attachment position mark on an inflator or an automobile member, handling in the subsequent process is reduced. However, the air bag system finished as a product has many variations.
[0010]
In order to solve the above problems, the present invention provides a bag-woven airbag base fabric and an airbag manufacturing method that can easily and accurately produce an airbag without affecting the original performance of the airbag. It is intended to provide.
[0011]
[Means for Solving the Problems]
Means for solving the above-described problem, that is, the first aspect of the present invention is an airbag base fabric that is joined by bag weaving to form a bag, and has a color different from the color of the weft constituting the airbag base fabric. A bag-woven airbag base fabric, characterized in that at least one or more yarns are used only as weft yarns as positioning yarns for positioning,
[0012]
The second is an air bag base fabric that is joined by bag weaving to form a bag, and at least one yarn having a color different from the color of the weft constituting the air bag base fabric is used as a positioning mark yarn only. A method of manufacturing an airbag using a bag-woven airbag base fabric, characterized in that
[0013]
The third is an airbag base fabric that is joined by bag weaving to form a bag, and at least one yarn having a color different from the colors of the warp and weft constituting the airbag base fabric is used as a positioning mark yarn. A bag-woven airbag base fabric characterized by being used only for wefts,
[0014]
The fourth is an airbag base fabric that is joined by bag weaving to form a bag. At least one yarn having a color different from the colors of the warp and weft constituting the airbag base fabric is used as a positioning mark yarn. An airbag manufacturing method using a bag-woven airbag base fabric characterized by being used only for wefts.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The raw yarn constituting the bag-woven airbag base fabric of the present invention is not particularly limited in material, but in particular, aliphatic polyamide fibers such as nylon 66, nylon 6, nylon 46, nylon 12, and aramid fibers Homopolyesters such as aromatic polyamide fibers, polyethylene terephthalate and polybutylene terephthalate are used. Other examples include wholly aromatic polyester, ultrahigh molecular weight polyethylene fiber, PPS fiber, and polyetherketone fiber. However, polyester fiber and polyamide fiber (nylon 66, nylon 6, nylon 46) are particularly preferable in consideration of economy. Moreover, in order to improve the process passability in the raw yarn manufacturing process and the post-processing process, these synthetic fibers do not have any problem even if they contain various additives. For example, antioxidants, heat stabilizers, smoothing agents, antistatic agents, thickeners, flame retardants and the like.
[0016]
Also, there are no particular limitations on the coating agent or laminate material for preventing air permeability deterioration or misalignment, and synthetic rubber such as chloroprene, chlorosulfonated olefin, or silicone is applied, or a rubber-like adhesive is used. It is also possible to coat and / or laminate the film, or to coat and / or laminate as it is without using an adhesive.
[0017]
The loom used for weaving is not particularly limited, and for example, a water jet room, an air jet room, a rapier room, a projector room, and the like are used. However, the water jet loom and the air jet loom are particularly preferable in consideration of woven productivity, damage to the warp, yarn stains, and the like.
[0018]
Further, when determining the bag weave pattern, a jacquard device or a dobby device is used. In particular, in order to obtain a complicated pattern, a jacquard device (electronic or mechanical) is required, and an electronic jacquard device is more preferable because of productivity and ease of pattern change.
[0019]
The bag weave as used in the present invention is not limited to a double weave structure, and refers to general multiple weaves such as a triple weave and a quadruple weave. A double weave is preferred.
[0020]
As for the color of the color yarn to be used, the color may be different from the weft to be used, but a yarn having a color that is not the same color as the weft is more preferable, and more preferably a color different from the warp and the weft, and the same color for the warp and the weft. It is not a color thread.
[0021]
Hereinafter, preferred examples of the bag-woven airbag base fabric and the airbag of the present invention will be described in detail with reference to the accompanying drawings.
[0022]
The examples of FIGS. 1, 2 and 3 are schematic views of the bag-woven airbag base fabric used this time. In order to omit factors such as the shape, the complicated shape of the bag was not adopted, and the drawing was simplified. 1 is a bag part (multiple cloth part), 2 is a connecting single part.
[0023]
【Example】
Next, the present invention will be described in more detail with reference to examples. In addition, the physical property in an Example and a comparative example was evaluated with the following method.
[0024]
Weaving property: After weaving for 24 hours, convert the number of stops per hour, ◎ 0-1 times / h, ○ 2-3 times / h, △ 4-5 times / h, × 6 times The evaluation of weaving property was made by the above / h.
[0025]
Base fabric quality: After weaving and processing, surveys the quality of the base fabric before coating. Base fabric quality is mainly inspected for defects caused by warps and wefts, and is checked for fluff, single yarn breakage, wrinkles, threads, etc., and the judgment is ◎: very good, ○: good, △: normal, ×: It was bad.
[0026]
Cutting workability: Evaluates the workability when cutting the air bag base fabric after coating, that is, how accurately it can be cut efficiently in a short time. The number of finished bags per unit time and the shape of the finished bag Judging from the overall quality (deviation from the set shape), ◎: very good, ○: good, Δ: normal, ×: bad.
[0027]
[Example 1]
The warp and weft yarns of 650 dtex / 108f nylon 66 filament were used, and the airbag drawing of FIG. 1 was woven as a double woven airbag base fabric using an air jet loom and an electronic jacquard apparatus. The color of the used yarn is white for both the warp and weft. Fig. 1-1 The bag part is plain weave, and Fig. 1-2 connected single part is a 3x3 basket structure. After weaving with bag weaving so as to be 60 pieces / in and 60 pieces / in, we passed a boiling water shrinkage step, followed by drying and setting steps to produce a processed fabric. In addition, as shown in FIG. 1, the colored yarn was cut out between the bag portion and the bag portion, and the black yarn was inserted only with the weft thread at the portion where the cutting end position was reached. The physical properties of the fabric are shown in Table 1.
[0028]
[Example 2]
The warp and weft yarns of 650 dtex / 108f nylon 66 filament were used, and the airbag drawing of FIG. 1 was woven as a double woven airbag base fabric using an air jet loom and an electronic jacquard apparatus. The colors of the raw yarn used are white for warp and black for weft, Fig. 1-1 bag portion is plain weave, Fig. 1-2 connected single portion is formed with 3 x 3 basket structure, and density of bag portion after processing After weaving with bag weaving so that the warp was 60 pieces / in and weft 60 pieces / in, it was passed through a boiling water shrinkage step, followed by a drying and setting step to produce a processed fabric. In addition, as shown in FIG. 1, the colored yarn was cut out between the bag portion and the bag portion, and white yarn (same color as the warp yarn) was inserted only with the weft yarn at the end position. The physical properties of the fabric are shown in Table 1.
[0029]
[Example 3]
The warp and weft yarns of 650 dtex / 108f nylon 66 filament were used, and the airbag drawing of FIG. 1 was woven as a double woven airbag base fabric using an air jet loom and an electronic jacquard apparatus. The color of the used yarn is white for both the warp and weft. Fig. 1-1 The bag part is plain weave, and Fig. 1-2 connected single part is a 3x3 basket structure. After weaving with bag weaving so as to be 60 pieces / in and 60 pieces / in, we passed a boiling water shrinkage step, followed by drying and setting steps to produce a processed fabric. In addition, as shown in FIG. 1, the colored yarn was cut out between the bag portion and the bag portion, and a light yellow yarn was inserted only with the weft thread at the end position. The physical properties of the fabric are shown in Table 1.
[0030]
[Comparative Example 1]
The warp and weft yarns of 650 dtex / 108f nylon 66 filament were used, and the airbag drawing of FIG. 2 was woven as a double woven airbag base fabric using an air jet loom and an electronic jacquard apparatus. The color of the used yarn is white for both warp and weft. Fig. 2-1 Bag part is plain weave, Figure 2-2 is connected with a single 3x3 basket structure, and the bag part density after processing is warp. After weaving with bag weaving so as to be 60 pieces / in and 60 pieces / in, we passed a boiling water shrinkage step, followed by drying and setting steps to produce a processed fabric. In addition, as shown in FIG. 2, the black yarn was inserted with the warp alone into the left and right cut-out and cut end positions of the colored yarn as shown in FIG. Table 1 shows the physical properties of the fabric.
[0031]
[Comparative Example 2]
The warp and weft yarns of 650 dtex / 108f nylon 66 filament were used, and the airbag drawing of FIG. 3 was woven as a double woven airbag base fabric using an air jet loom and an electronic jacquard apparatus. The color of the used yarn is white for both the warp and weft. Fig. 3-1 The bag part is a plain weave, and Fig. 3-2 is connected with a 3x3 basket structure. After weaving with bag weaving so as to be 60 pieces / in and 60 pieces / in, we passed a boiling water shrinkage step, followed by drying and setting steps to produce a processed fabric. Table 1 shows the physical properties of the fabric.
[0032]
[Table 1]
Figure 0004106589
[0033]
As can be seen from Examples 1 and 2 and Comparative Example 1 in Table 1, when the cutting start point is marked with colored yarn, the cutting workability is good, but as in Comparative Example 3, it is completely marked. When there is no brazing, not only the cutting efficiency is lowered, but also the shape of the finished bag is uneven, leading to an increase in the loss rate.
[0034]
In the case of Example 2, the difference in color of the colored yarn is only with the weft, and the effect of adding the colored yarn is the same as in Example 1 when compared with Example 1 that uses different colored yarns for the warp and weft. Although it is higher and the effect is reduced in the second embodiment, it is possible to determine the cut-out position. Further, in the case of Example 3, since the color of the used color yarn was similar to that of the warp and weft, the marking effect by adding the color was reduced compared to Examples 1 and 2, but the cutting workability was improved. There was no adverse effect and workability was normal.
[0035]
Further, in Comparative Example 1, since colored yarn was used as the warp, a tension difference from the ground warp occurred, and a warp twist phenomenon occurred. In addition, warp single yarn breakage and fluff derived from the thread increased, and the base fabric quality deteriorated.
[0036]
In the case of Example 1, not only the cutting start point is marked with colored yarn as described above, but also the colored yarn is inserted only with weft, so there is no problem in weaving and the basic The fabric quality will remain good, and the airbag will be excellent in safety.
[0037]
【The invention's effect】
According to the present invention, since the airbag has excellent cutting workability without affecting the performance of the airbag and can be cut into an accurate shape as designed, an airbag having excellent safety is finally supplied. be able to.
[Brief description of the drawings]
FIG. 1 is a plan view showing an example (Example) of a bag-woven airbag base fabric according to the present invention.
FIG. 2 is a plan view showing an example (Comparative Example 1) of a bag-woven airbag base fabric according to the present invention.
FIG. 3 is a plan view showing an example (Comparative Example 2) of a bag-woven airbag base fabric according to the present invention.
[Explanation of symbols]
1: Bag part
2: Portion that does not expand as a bag when the airbag is activated

Claims (4)

袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布。It is an airbag base fabric that is joined by bag weaving to form a bag, and at least one yarn of a color different from the color of the weft constituting the airbag base fabric is used only as a weft yarn as a positioning mark yarn A bag-woven airbag base fabric. 袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布を用いたエアバッグの製造方法It is an airbag base fabric that is joined by bag weaving to form a bag, and at least one yarn of a color different from the color of the weft constituting the airbag base fabric is used only as a weft yarn as a positioning mark yarn An airbag manufacturing method using a bag-woven airbag base fabric characterized by the above. 袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する経糸及び緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸のみに用いてなることを特徴とする袋織りエアバッグ基布。An airbag base fabric that is combined by bag weaving to form a bag, and at least one yarn having a color different from the colors of the warp and weft constituting the airbag base fabric is used as a positioning mark yarn only for the weft. A bag-woven airbag base fabric characterized in that 袋織りにより結合し袋を形成するエアバッグ基布であり、該エアバッグ基布を構成する経糸及び緯糸の色彩とは異なる色彩の糸を少なくとも1本以上位置決め用目印糸として緯糸に用いてなることを特徴とする袋織りエアバッグ基布を用いたエアバッグの製造方法An airbag base fabric that is joined by bag weaving to form a bag, and at least one yarn having a color different from the colors of the warp and the weft constituting the airbag base fabric is used for the weft as a positioning mark yarn An air bag manufacturing method using a bag-woven air bag base fabric.
JP2001384866A 2001-12-18 2001-12-18 Bag-woven airbag base fabric and airbag manufacturing method Expired - Fee Related JP4106589B2 (en)

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