JPH08269837A - Reinforcing woven fabric and its production - Google Patents
Reinforcing woven fabric and its productionInfo
- Publication number
- JPH08269837A JPH08269837A JP7077867A JP7786795A JPH08269837A JP H08269837 A JPH08269837 A JP H08269837A JP 7077867 A JP7077867 A JP 7077867A JP 7786795 A JP7786795 A JP 7786795A JP H08269837 A JPH08269837 A JP H08269837A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- reinforcing
- warp
- fiber
- weft
- 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.)
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Links
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- Treatment Of Fiber Materials (AREA)
- Woven Fabrics (AREA)
- Looms (AREA)
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は複合材の補強基材として
使用される補強用織物およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing fabric used as a reinforcing base material for composite materials and a method for producing the same.
【０００２】[0002]
【従来の技術】炭素繊維織物やガラス繊維織物は、繊維
強化樹脂（ＦＲＰ）を形成するときの補強基材として広
く用いられている。しかし、これらの織物に使用される
炭素繊維やガラス繊維は非常に弾性率が高いため、引張
りには著しく強いが曲げには脆いという性質がある。そ
のため、よこ糸としてシャトル織機で織製すると、その
よこ糸がシャトル内の小さな管に巻かれることや、シャ
トルの往復によって耳部で折り曲げられることなどか
ら、よこ糸が強い曲げを受けて毛羽を発生しやすいとい
う問題がある。2. Description of the Related Art Carbon fiber woven fabrics and glass fiber woven fabrics are widely used as a reinforcing base material when forming a fiber reinforced resin (FRP). However, since carbon fibers and glass fibers used for these woven fabrics have a very high elastic modulus, they have the property of being extremely strong in tension but brittle in bending. Therefore, when weaving a weft thread with a shuttle loom, the weft thread is wound around a small tube inside the shuttle and is bent at the ears when the shuttle reciprocates. There is a problem.
【０００３】このようなことから、補強用織物の織製に
はレピア織機が使用されることが多い。このレピア織機
による織製では、よこ糸は挿入毎に耳部で切断され、ま
た小さい径の管に巻く必要がないため、シャトル織機の
場合のように強い曲げを受けることがない。しかしなが
ら、レピア織機による織物のよこ糸は挿入毎に切断され
るため、耳部がほつれ易いという問題がある。For this reason, rapier looms are often used for weaving reinforcing fabrics. In the weaving by the rapier loom, the weft thread is not cut by the selvages every time it is inserted, and since it is not necessary to wind the thread in a tube having a small diameter, it is not subjected to strong bending as in the case of the shuttle loom. However, since the weft thread of the woven fabric by the rapier loom is cut each time it is inserted, there is a problem that the selvages are easily frayed.
【０００４】一般に、ほつれ防止対策としては耳部を絡
み糸を挿入した絡み耳にすることが採用されている。し
かし、絡み糸を挿入すると、例えばたて糸が太い炭素繊
維で、よこ糸に細い補助糸を使用した織物を製織する場
合には、絡み組織によりよこ糸の両端部が屈曲し、耳部
のよこ糸切断端が１本交互に織物平面に対して上下に立
ってしまう現象が生ずる。In general, as a measure for preventing fraying, it has been adopted to make the ears into entangled ears with entangled threads. However, when the entanglement yarn is inserted, for example, when weaving a fabric in which the warp yarn is a thick carbon fiber and a thin auxiliary yarn is used for the weft yarn, both ends of the weft yarn are bent due to the entanglement structure, and the weft yarn cut end of the ear portion is bent. A phenomenon occurs in which one piece stands up and down alternately with respect to the plane of the fabric.
【０００５】このように織物の耳部でよこ糸端が立った
状態になると、ハンドレイアップ成形でＦＲＰにする
際、一旦は糸端が含浸ローラーで抑えられるとしても、
樹脂硬化の過程で再び立ってしまい、その部分が分厚く
成形される。その上に直交する方向の織物を更に積層す
ると耳部で盛り上がり、補強織物が曲がって十分な補強
効果が得られなくなるばかりでなく、その間にボイドが
入り、高性能なＦＲＰを得ることができなくなる。When the weft yarn ends are erected at the selvages of the fabric in this way, even when the yarn ends are temporarily suppressed by the impregnating roller when the hand lay-up molding is applied to FRP.
It stands up again in the process of hardening the resin, and that part is thickened. If a woven fabric in a direction perpendicular to the woven fabric is further stacked on it, the woven fabric will bulge at the ears and the reinforcing woven fabric will not bend to obtain a sufficient reinforcing effect, and voids will be created between them, making it impossible to obtain a high-performance FRP. .
【０００６】また、よこ糸を強固に拘束する目的の絡み
糸は、高い張力で供給する必要がある。しかし、このよ
うにして得られた織物は、長さ方向において絡み耳だけ
が突っ張った状態になるため、長尺の織物を長さ方向の
両端を持ちながら積層すると、織物の幅方向中央部が弛
んだ状態になっているため、まず中央部が前の積層の樹
脂と接触し、繊維配向を正確にしながら積層することが
困難になる。Further, the entangled yarn for the purpose of firmly restraining the weft yarn must be supplied with high tension. However, since the woven fabric obtained in this way is in a state in which only the ears are entangled in the lengthwise direction and the ears are stretched, when the long woven fabric is laminated while holding both ends in the lengthwise direction, the widthwise central portion of the woven fabric is Since it is in a slackened state, first, the central portion comes into contact with the resin of the previous lamination, and it becomes difficult to laminate while accurately aligning the fibers.
【０００７】また、プリプレグ加工などのように連続的
に織物を供給しながら加工していく場合は、突っ張った
耳部が先行し、織物の中央部が遅れることなってよこ糸
が大きく弓なりに曲がることとなり、繊維配向の悪いプ
リフレグになってしまう。特開昭６３−２８８２７２号
公報には、補強用織物の耳部に熱可塑性ポリマーを付着
させたのち、その耳部をカッターで切断することにより
耳部切断によるほつれを防止するようにしたものが提案
されている。しかし、カッターの織物に対する切断位置
を常に同じ箇所に設定することは困難であるので、切断
箇所を或る程度の幅に確保して熱可塑性ポリマーを付着
させる必要があるため、かなりの広幅の範囲で熱可塑性
ポリマーを付着した織物になることが避けられない。Further, in the case of processing while continuously supplying the fabric such as prepreg processing, the protruding ear part precedes and the central part of the fabric is delayed so that the weft thread is bent in a large bow. Therefore, the prepreg has poor fiber orientation. JP-A-63-288272 discloses a structure in which a thermoplastic polymer is attached to the ears of a reinforcing fabric, and the ears are cut with a cutter to prevent fraying due to cutting of the ears. Proposed. However, it is difficult to always set the cutting position for the fabric of the cutter at the same position, so it is necessary to secure the cutting position to a certain width and attach the thermoplastic polymer to it, so that it is possible to set a wide range. Therefore, it is inevitable that the woven fabric will have a thermoplastic polymer attached thereto.
【０００８】しかし、このような織物の一部に予め熱可
塑性ポリマーを含浸させた状態にすると、その領域には
ＦＲＰのマトリックス樹脂が含浸するのが阻害されるこ
とになるため、ＦＲＰの特性を低下させてしまう問題が
ある。また、耳部切断のための余分な工程が必要であ
り、かつ耳部切断除去による材料ロスも発生する。However, when a part of such a woven fabric is preliminarily impregnated with the thermoplastic polymer, impregnation of the region with the matrix resin of FRP is hindered. There is a problem of lowering it. In addition, an extra step for cutting the ears is required, and material loss occurs due to removal of the ears.
【０００９】[0009]
【発明が解決しようとする課題】本発明の目的は、よこ
糸端部を切断端とする場合において、その切断端が織物
平面に対して直立状態になるのを防止することにより、
複合材の性能向上を図るようにした補強用織物およびそ
の製造方法を提供することにある。An object of the present invention is to prevent the cut end from standing upright with respect to the plane of the fabric when the weft end is used as the cut end.
It is an object of the present invention to provide a reinforcing fabric and a method for producing the same for improving the performance of a composite material.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
の本発明は、少なくともたて糸を補強繊維糸で構成し、
よこ糸を耳部で切断端に形成した織物であって、該よこ
糸の切断端を最外側に位置するたて糸と交差する部分で
接着剤だけで接着固定したことを特徴とするものであ
る。According to the present invention for achieving the above object, at least warp yarns are constituted by reinforcing fiber yarns,
A woven fabric in which a weft thread is formed at a cut end at an ear portion, and is characterized in that a cut end of the weft thread is bonded and fixed only by an adhesive at a portion intersecting a warp thread located at an outermost side.
【００１１】また、本発明による他の補強用織物は、少
なくともたて糸を補強繊維糸で構成すると共に、最外側
に位置するたて糸の外側に補助たて糸を配置し、よこ糸
を耳部で切断端に形成した織物であって、該よこ糸の切
断端を前記補助たて糸と交差する部分で接着剤だけで接
着固定したことを特徴とするものである。このようによ
こ糸切断端を、最外側のたて糸、またはその外側に配置
した補助たて糸と交差する部分で接着剤だけで接着固定
して拘束状態にしたので、そのよこ糸切断端が織物平面
に対して立った状態になることはなく、ＦＲＰ等の複合
材に対する補強効果を低減させることはない。Further, in another reinforcing fabric according to the present invention, at least the warp yarn is constituted by the reinforcing fiber yarn, the auxiliary warp yarn is arranged outside the outermost warp yarn, and the weft yarn is formed at the cut end at the ear portion. The above-mentioned woven fabric is characterized in that the cut end of the weft yarn is bonded and fixed only with an adhesive at a portion intersecting with the auxiliary warp yarn. In this way, the weft thread cutting end is fixed by binding only with an adhesive at the portion that intersects the outermost warp thread or the auxiliary warp thread arranged on the outer side of the weft thread cutting end, so that the weft thread cutting end is in contact with the fabric plane. It does not stand up and does not reduce the reinforcing effect on the composite material such as FRP.
【００１２】また、よこ糸切断端の接着固定をたて糸ま
たは補助たて糸に対して点状または線状に限定すること
ができるので、ＦＲＰ等のマトリックス樹脂の含浸を妨
げることはなく、高性能の複合材にすることができる。
また、上記補強用織物の製造方法は、少なくともたて糸
を補強繊維糸で構成し、よこ糸を耳部で切断端に形成し
た織物の耳部に低融点ポリマーからなる糸を絡み糸とし
て挿入し、該織物の少なくとも耳部を加熱することによ
り前記絡み糸を溶融させ、前記よこ糸の切断端を前記織
物の最外側に位置するたて糸に融着させることを特徴と
するものである。Further, since the adhesive fixing of the cut end of the weft yarn can be limited to the warp yarn or the auxiliary warp yarn in a dot shape or a linear shape, impregnation of the matrix resin such as FRP is not hindered and a high performance composite material is obtained. Can be
Further, in the method for manufacturing the reinforcing fabric, at least the warp yarn is composed of a reinforcing fiber yarn, and a yarn made of a low melting point polymer is inserted as an entangled yarn into the selvage of the fabric formed by cutting the weft yarn at the selvage end, The entangled yarn is melted by heating at least the selvage of the woven fabric, and the cut end of the weft yarn is fused to the warp yarn located on the outermost side of the woven fabric.
【００１３】本発明による他の製造方法は、少なくとも
たて糸を補強繊維糸で構成すると共に、最外側に位置す
るたて糸の外側に補助たて糸を配置し、よこ糸を耳部で
切断端に形成した織物の耳部に低融点ポリマーからなる
糸を絡み糸として挿入し、該織物の少なくとも耳部を加
熱することにより前記絡み糸を溶融させ、前記よこ糸の
切断端を前記補助たて糸に融着させることを特徴とする
ものである。In another manufacturing method according to the present invention, at least the warp yarns are made of reinforcing fiber yarns, the auxiliary warp yarns are arranged outside the outermost warp yarns, and the weft yarns are formed at the cut ends at the selvages. A thread made of a low melting point polymer is inserted into the selvage as a entangled thread, and the entangled thread is melted by heating at least the selvage of the woven fabric, and the cut end of the weft thread is fused to the auxiliary warp thread. It is what
【００１４】このように低融点ポリマーからなる糸を絡
み糸とし、それを加熱溶融させるため、よこ糸切断端と
たて糸または補助たて糸に対して点状または線状に簡単
に接着固定させることができる。以下、本発明を図に示
す実施例によって具体的に説明する。図１は、本発明の
実施例からなる補強用織物を示す。Since the yarn made of the low melting point polymer is used as the entangled yarn and is melted by heating as described above, it can be easily adhered and fixed in a dotted or linear manner to the weft yarn cutting end and the warp yarn or the auxiliary warp yarn. Hereinafter, the present invention will be specifically described with reference to the embodiments shown in the drawings. FIG. 1 shows a reinforcing fabric according to an embodiment of the present invention.
【００１５】図１において、補強用織物１は多数本のた
て糸２とよこ糸３とにより平織に織製されている。たて
糸２には炭素繊維等の高強力、高弾性率の補強繊維糸が
使用され、これに対してよこ糸３は、補強繊維糸のたて
糸２を一体化させるための補助糸として使用され、それ
ぞれ織物の両耳部でたて糸方向に平行に切り揃えられた
切断端３ｅを形成している。このよこ糸３の両側の切断
端３ｅは、それぞれ多数のたて糸群のうち最外側に位置
するたて糸２ｓに対し、低融点ポリマーを接着剤５とし
て点状または線状に接着固定されている。In FIG. 1, a reinforcing fabric 1 is woven into a plain weave by a large number of warp threads 2 and weft threads 3. As the warp yarn 2, a reinforcing fiber yarn having high strength and a high elastic modulus such as carbon fiber is used, while the weft yarn 3 is used as an auxiliary yarn for integrating the warp yarn 2 of the reinforcing fiber yarn, and each of them is a woven fabric. The cut ends 3e cut in parallel with the warp yarn direction are formed by both ears. The cut ends 3e on both sides of the weft thread 3 are fixed to the warp threads 2s positioned on the outermost side of a large number of warp thread groups in a dotted or linear manner by using a low melting point polymer as an adhesive agent 5.
【００１６】補強用織物１の織構造は特に限定されず、
従来から使用されているものがいずれも使用可能であ
る。例えば、上記例示の平織のほか、綾織、朱子織、ノ
ンクリンプ組織などを使用することができる。図２は、
本発明の他の実施例からなる補強用織物を示すものであ
る。この実施例の補強用織物１は、図１の実施例におい
て、両最外側に位置するたて糸２ｓの外側に、さらに複
数本の補助たて糸４を挿入したものである。補助たて糸
４は、よこ糸３の切断端３ｅと交錯することにより耳組
織を形成している。このように複数本挿入した補助たて
糸４のうち、少なくとも最外側に位置する補助たて糸４
が、よこ糸３の切断端３ｅとの交点で低融点ポリマーを
接着剤５として点状または線状に接着されている。The woven structure of the reinforcing fabric 1 is not particularly limited,
Any of those conventionally used can be used. For example, in addition to the plain weaves exemplified above, a twill weave, a satin weave, a non-crimp design and the like can be used. Figure 2
7 shows a reinforcing fabric according to another embodiment of the present invention. The reinforcing fabric 1 of this embodiment is obtained by further inserting a plurality of auxiliary warp yarns 4 outside the warp yarns 2s located on both outermost sides in the embodiment of FIG. The auxiliary warp yarn 4 forms an ear tissue by intersecting with the cut end 3e of the weft yarn 3. Of the plurality of auxiliary warp threads 4 thus inserted, at least the outermost auxiliary warp threads 4 are positioned.
However, the low melting point polymer is used as the adhesive 5 at the intersection with the cut end 3e of the weft thread 3 to be adhered in a dot shape or a linear shape.
【００１７】補助たて糸４はよこ糸３の切断端３ｅを拘
束するための補助手段として配置したものであるので、
その使用繊維としては必ずしもたて糸２と同じ補強繊維
糸を使用する必要はない。同じであってもよいが、太さ
は細くてよい。また、補助たて糸４による織構造は特に
限定されず、地組織と同一であってもよく、異なってい
てもよい。ただし、よこ糸切断端３ｅを拘束することを
目的とするものであるので、望ましく交錯点の多い平織
組織にすることが好ましい。Since the auxiliary warp thread 4 is arranged as an auxiliary means for restraining the cut end 3e of the weft thread 3,
As the fibers to be used, it is not always necessary to use the same reinforcing fiber yarn as the warp yarn 2. They may be the same, but may be thin. The woven structure of the auxiliary warp threads 4 is not particularly limited and may be the same as or different from the ground weave. However, since the purpose is to restrain the weft yarn cutting end 3e, it is preferable to use a plain weave design having many intersecting points.
【００１８】上述した実施例において、よこ糸切断端と
たて糸または補助たて糸との接着固定に使用する低融点
ポリマーの耳部の単位長さ当たりの付着量としては、
０．０２〜０．２ｇ／ｍにするとよい。０．０２ｇ／ｍ
よりも少なくては、十分な接着効果を得ることが難しく
なり、また０．２ｇ／ｍよりも多くなると、ＦＲＰにし
た場合のマトリックス樹脂の補強繊維糸への含浸性が低
下するようになる。In the above-mentioned examples, the adhesion amount per unit length of the selvage of the low melting point polymer used for adhesively fixing the cut end of the weft thread and the warp thread or the auxiliary warp thread is as follows.
It is good to set it to 0.02-0.2 g / m. 0.02 g / m
When it is less than 0.2 g, it becomes difficult to obtain a sufficient adhesive effect, and when it is more than 0.2 g / m, the impregnating property of the matrix resin into the reinforcing fiber yarn becomes low when FRP is used.
【００１９】少なくともたて糸に使用する補強繊維糸は
実質的によりを無撚りで、繊度が５００〜３０，０００
デニール、サイジング付着量が０．２〜２．０重量％で
あることが好ましい。また、図２の例のように耳部に補
助たて糸を使用する場合は、その織幅および繊度と密度
の関係としては、補助たて糸の織幅を２〜２０mm、補助
たて糸／補強繊維糸のたて糸との繊度比を１／３〜１／
４０、また補助たて糸の繊度×密度を1,０００〜１2,０
００デニール・本／cm にするのがよい。The reinforcing fiber yarn used for at least the warp yarn is substantially non-twisted and has a fineness of 500 to 30,000.
The denier and sizing adhesion amount is preferably 0.2 to 2.0% by weight. When an auxiliary warp yarn is used for the selvages as in the example of FIG. 2, regarding the relationship between the weaving width and the fineness and the density, the weaving width of the auxiliary warp yarn is 2 to 20 mm, and the warp yarn of the auxiliary warp yarn / reinforcing fiber yarn is The fineness ratio with
40, and the fineness x density of the auxiliary warp threads is 1,000 to 12,0.
It is recommended to use 00 denier / book / cm.
【００２０】本発明において、少なくともたて糸に使用
する補強繊維糸には、高強度・高弾性率の繊維を使用す
る。例えば、炭素繊維、ガラス繊維、芳香族ポリアミド
繊維などである。なかでも、フィラメントが多数本集束
した炭素繊維が好ましい。この炭素繊維としては、単繊
維径が５〜８ミクロン、フィラメント数が５，０００〜
５０，０００本のマルチフィラメント糸で、引張強度が
２００〜７００kg／mm2 、引張弾性率が２０〜７０×１
０3 kg／mm2 の範囲のものがよい少量の繊維量で高い補
強効果が得られるので好ましい。In the present invention, at least the reinforcing fiber yarn used for the warp yarn is a fiber having high strength and high elastic modulus. For example, carbon fiber, glass fiber, aromatic polyamide fiber and the like. Of these, carbon fibers in which a large number of filaments are bundled are preferable. This carbon fiber has a single fiber diameter of 5 to 8 microns and a filament number of 5,000 to
50,000 multifilament yarns, tensile strength 200-700 kg / mm 2 , tensile modulus 20-70 × 1
The range of 0 3 kg / mm 2 is preferable, since a high reinforcing effect can be obtained with a small amount of fibers, and thus it is preferable.
【００２１】よこ糸に使用する補助糸は、本質的にＦＲ
Ｐの機械的特性を担うものではなく、たて糸の補強繊維
糸の形態保持を行うものであるので、繊度が１００〜１
２００デニールであって、たて糸よりも細い糸を使用す
ることが好ましい。特に、繊度の上限としては、たて糸
として使用する補強繊維糸の太さの１／３以下であるこ
とが好ましい。補強繊維糸糸の太さの１／３よりも太く
すると、よこ糸の剛性が大きくなって、交錯点において
たて糸のクリンプが大きくなるため、補強繊維糸が有す
る高強度・高弾性率の効果が低減することになる。The auxiliary yarn used for the weft yarn is essentially FR
The fineness is 100 to 1 because it does not bear the mechanical characteristics of P but retains the shape of the reinforcing fiber yarn of the warp yarn.
It is preferred to use yarns of 200 denier and thinner than the warp yarns. In particular, the upper limit of the fineness is preferably 1/3 or less of the thickness of the reinforcing fiber yarn used as the warp yarn. Reinforcing fiber yarn If the thickness is larger than 1/3 of the yarn thickness, the rigidity of the weft yarn increases and the crimp of the warp yarn increases at the crossing point, so the effect of the high strength and high elastic modulus of the reinforcing fiber yarn is reduced. Will be done.
【００２２】このよこ糸に補助糸として使用する繊維と
しては、ガラス繊維、芳香族ポリアミド繊維、ポリビニ
ルアルコール繊維、ポリエステル繊維、ポリアミド繊
維、ポリエチレン繊維、ポリプロピレン繊維など特に限
定されるものではないが、なかでもガラス繊維、芳香族
ポリアミド繊維、ポリビニルアルコール繊維は熱収縮率
が小さく、寸法安定性がよいので好ましい。The fibers used as auxiliary yarns for the weft yarns are not particularly limited, such as glass fibers, aromatic polyamide fibers, polyvinyl alcohol fibers, polyester fibers, polyamide fibers, polyethylene fibers, polypropylene fibers, but among others, Glass fibers, aromatic polyamide fibers, and polyvinyl alcohol fibers are preferable because they have a small heat shrinkage rate and good dimensional stability.
【００２３】さらに、よこ糸切断端のたて糸または補助
たて糸に対する接着剤としては、熱融着性の低融点ポリ
マーの使用が好ましい。この低融点ポリマーとしては、
ナイロン、共重合ナイロン、ポリエステル、塩化ビニリ
デン、塩化ビニル、ポリポリウレタンなどの熱可塑性樹
脂を使用することができる。なかでも共重合ナイロン、
例えば、ナイロン６、６６および６１０の共重合ナイロ
ン、ナイロン６、１２、６６および６１０の共重合ナイ
ロンは好ましい。Further, as the adhesive for the warp yarn or the auxiliary warp yarn at the cut end of the weft yarn, it is preferable to use a heat-meltable low melting point polymer. As this low melting point polymer,
Thermoplastic resins such as nylon, copolymerized nylon, polyester, vinylidene chloride, vinyl chloride and polypolyurethane can be used. Among them, copolymer nylon,
For example, copolymerized nylons of nylon 6, 66 and 610 and copolymerized nylons of nylon 6, 12, 66 and 610 are preferable.
【００２４】本発明による補強用織物の製造方法として
は、次のようにすれば簡単に行うことができる。まず、
図３に示すように、補強繊維糸からなるたて糸２と補助
糸としてのよこ糸３とから一体化された地組織を構成
し、さらにこの地組織の両最外側に位置するたて糸２
ｓ，２ｓの外側に突出するよこ糸３の切断端３ｅに、低
融点ポリマーからなる糸６，７が絡み糸として織り込ま
れた一方向性の織物構造の原反１’を製作する。The method of manufacturing the reinforcing fabric according to the present invention can be easily carried out as follows. First,
As shown in FIG. 3, a warp yarn 2 made of a reinforcing fiber yarn and a weft yarn 3 as an auxiliary yarn form an integrated ground structure, and the warp yarns 2 located on both outermost sides of this ground structure are formed.
A unidirectional woven fabric structure 1 ′ is produced in which threads 6 and 7 made of a low melting point polymer are woven as entangled threads at a cut end 3e of a weft thread 3 protruding outward of s and 2s.
【００２５】上記のように耳部にからみ糸６，７を設け
た原反１’は、織製時に補強繊維糸のたて糸２群が一本
交互に上下の開口運動がなされても、よこ打ち込みされ
たよこ糸３の切断端３ｅが低融点熱可塑性ポリマー糸
６、７の絡み組織でしっかりと保持されるため、よこ糸
３が織物の中央方向に引き込まれることがなく、正常な
繊維配向の織物に製織される。As described above, the raw fabric 1'provided with the entangled yarns 6 and 7 in the selvages is woven into the fabric even if two warp yarns of the reinforcing fiber yarn are alternately moved up and down. Since the cut end 3e of the weft yarn 3 is firmly held by the entangled structure of the low-melting point thermoplastic polymer yarns 6 and 7, the weft yarn 3 is not drawn in the center direction of the fabric, and a fabric having a normal fiber orientation is obtained. Woven.
【００２６】しかし、この原反１’の状態でも、図３に
示すように、よこ糸３の切断端３ｅは織物面に対して１
本交互に上下に立った状態になる。この現象は、図４に
示す絡み組成構造図から分かるように、絡み糸６および
７に矢印ａ方向に張力が加わると絡み糸６および７が真
っ直ぐになろうとするため、よこ糸切断端３ｅが、それ
ぞれ絡み糸（上糸）６からは紙面の裏側へ曲げる力を受
け、絡み糸（下糸）７からは紙面の表側に曲げる力を受
けることによって、よこ糸端３ｅは矢印ｂまたはｃの方
向に回転して、表側と裏側とに交互に立った状態にな
る。However, even in the state of this original fabric 1 ', as shown in FIG. 3, the cut end 3e of the weft yarn 3 is 1 with respect to the woven surface.
The books are placed alternately up and down. As can be seen from the entanglement composition structure diagram shown in FIG. 4, when the tension is applied to the entanglement yarns 6 and 7 in the direction of the arrow a, the entanglement yarns 6 and 7 tend to be straightened. By receiving a bending force from the entangled yarn (upper yarn) 6 to the back side of the paper surface and a bending force from the entangled yarn (bottom yarn) 7 to the front side of the paper surface, the weft yarn end 3e moves in the direction of arrow b or c. It rotates and stands alternately on the front and back sides.
【００２７】この傾向は、よこ糸３の剛性が小さいほ
ど、また絡み糸６，７の剛性が大きく絡み糸の締め付け
が強いほど大きくなる。上記のように織製された原反
１’は、織機上で巻き取りローラーに巻き取られるまで
の間に、耳部をヒーターにより絡み糸６，７の低融点ポ
リマーの溶融温度以上に加熱処理され、その絡み糸６，
７を溶融させる。この加熱処理によって、よこ糸切断端
３ｅは絡み糸６、７の拘束から解放されて、図１のよう
に真っ直ぐな状態になった補強用織物１が得られる。This tendency increases as the rigidity of the weft thread 3 decreases, and the rigidity of the entanglement threads 6 and 7 increases and the tightening of the entanglement threads increases. The woven fabric 1 ′ woven as described above is heat-treated at a temperature higher than the melting temperature of the low melting point polymer of the entangled yarns 6 and 7 by the heater until the selvage is wound up by the winding roller on the loom. The entangled thread 6,
Melt 7. By this heat treatment, the weft cutting ends 3e are released from the restraint of the entangled yarns 6 and 7, and the reinforcing fabric 1 in a straight state as shown in FIG. 1 is obtained.
【００２８】上記製造方法において、絡み組織を形成す
る２本の絡み糸のうち、低融点ポリマーの糸は何れか一
方だけにし、他方を他の繊維糸にするようにしてもよ
い。また、本発明の製造方法において、少なくとも原反
のたて糸は補強繊維糸から構成されるが、よこ糸も共に
補強繊維糸から構成した二方向性の補強用織物であって
もよい。In the above manufacturing method, one of the two entangled yarns forming the entangled structure may be the low melting point polymer yarn, and the other may be another fiber yarn. Further, in the manufacturing method of the present invention, at least the raw warp yarns are composed of reinforcing fiber yarns, but the weft yarns may also be bidirectional reinforcing fabrics composed of reinforcing fiber yarns.
【００２９】図５は、たて糸２とよこ糸３を共に補強繊
維糸から構成した二方向性の原反１０を示す。この原反
１０では、よこ糸３が補強繊維糸から構成されているた
め剛性が高く、図３の一方向性の原反１’では生じた絡
み糸６，７の締め付けによるよこ糸切断端３ｅの屈曲は
僅かであり、ほとんど立った状態になることはない。FIG. 5 shows a bidirectional original fabric 10 in which both warp threads 2 and weft threads 3 are composed of reinforcing fiber threads. In this original fabric 10, since the weft yarn 3 is composed of a reinforcing fiber yarn, the rigidity is high, and the weft yarn cutting end 3e is bent by tightening the entangled yarns 6 and 7 generated in the unidirectional original fabric 1 ′ in FIG. Is small and almost never stands.
【００３０】しかし、絡み糸６，７の供給は地組織のた
て糸２とは組織構造が異なるため別供給させる必要があ
り、また、絡み糸６，７はよこ糸３を強固に把持させる
目的から高い張力を掛けて製織するのが普通である。そ
の結果として、耳が突っ張った原反織物になり、織物ロ
ールから解舒させながら連続的にプリプレグ加工すると
耳が先行し、織物の中央部が遅れることによりよこ糸が
大きく弧形する問題が生じたりする。However, since the entanglement yarns 6 and 7 have different texture structures from the warp yarn 2 of the ground texture, it is necessary to separately supply the entanglement yarns 6 and 7, and the entanglement yarns 6 and 7 are high in order to firmly grip the weft yarn 3. Weaving is usually performed by applying tension. As a result, it becomes a raw fabric with ears stretched, and when prepreg processing is continuously performed while unwinding from the fabric roll, the ears lead, and the center of the fabric is delayed, causing a problem that the weft thread is greatly arcuated. To do.
【００３１】しかし、本発明の製造法による補強用織物
であれば、製織後に絡み糸の低融点ポリマーからなる糸
６，７を溶融させて、織物の長さ方向の突っ張りを解放
させるので、上記問題点を発生することはない。However, in the case of the reinforcing woven fabric according to the manufacturing method of the present invention, the yarns 6 and 7 made of the low melting point polymer of the entangled yarn are melted after weaving to release the tension in the longitudinal direction of the woven fabric. It does not cause any problems.
【００３２】[0032]
【実施例】引張強度４，８００MPa 、引張弾性率２３０
GPa 、破断伸度２．１％、フィラメント直径７μｍ、フ
ィラメント数１２，０００本、繊度７，２００デニール
の扁平な炭素繊維をたて糸として１，８７５本の密度で
配列し、ガラス繊維（フィラメント直径７μｍ、フィラ
メント数が４００本、繊度が４０５デニール）をよこ糸
として使用することにより、図３に示す平織の地組織
で、その地組織の両耳部に、低融点ナイロン糸（共重合
ナイロン）３００デニールを２本組みにした絡み糸を設
けた原反を織製した。この織製は、たて糸の開口時に常
に一方向からレピア棒の先端でよこ糸端を把持して挿入
し、筬打ち時にそのよこ糸をカッターで切断するレピア
織機によって行った。Example: Tensile strength 4,800 MPa, tensile modulus 230
GPa, elongation at break 2.1%, filament diameter 7 μm, number of filaments 12,000, fineness 7,200 denier flat carbon fibers are arranged as warp threads at a density of 1,875 filaments, and glass fibers (filament diameter 7 μm , The number of filaments is 400 and the fineness is 405 denier), the plain weave shown in FIG. 3 is used as the weft, and 300 denier of low melting point nylon yarn (copolymerized nylon) is applied to both ears of the plain weave. The original fabric provided with the entangled yarn which is a set of two was woven. This weaving was carried out by a rapier weaving machine in which the end of the weft yarn is always grasped and inserted by the tip of the rapier rod from one direction when the warp yarn is opened, and the weft yarn is cut by a cutter during beating.
【００３３】次いで、上記原反を巻取りロールに巻き取
る手前で、ヒーターにより耳部の絡み糸を溶融させ、こ
の絡み糸に隣接するたて糸とよこ糸切断端とを接着させ
ることにより、補強用織物にした。このようにして得ら
れた補強用織物は、上記のように絡み糸を溶融させる前
のよこ糸切断端は、剛性が小さい細いガラス繊維である
ため、２本の絡み糸の張力によって１本交互に織物面の
上下に立った状態になっていたが、絡み糸を溶融させた
後は屈曲が解放されて真っ直ぐな状態になった。しか
も、織物両端のたて糸とよこ糸切断端は低融点ナイロン
糸の溶融樹脂で接着されることにより、たて糸がほつれ
ることはなかった。Then, before winding the above-mentioned raw material on a winding roll, the entangled yarn of the selvage is melted by a heater, and the warp yarn adjacent to this entangled yarn and the cut end of the weft yarn are adhered to each other, whereby a reinforcing fabric is obtained. I chose In the reinforcing fabric thus obtained, the cut ends of the weft yarn before melting the entanglement yarn are thin glass fibers having low rigidity as described above. It was standing on the top and bottom of the fabric surface, but after melting the entangled yarn, the bending was released and it became straight. In addition, the warp threads and the cut ends of the weft threads at both ends of the fabric were adhered with the molten resin of the low melting point nylon thread, so that the warp threads were not frayed.
【００３４】さらに、この補強用織物に室温硬化型エポ
キシ樹脂をハンドレイアップで含浸させることによりＦ
ＲＰ硬化板を製作した。このＦＲＰ硬化板は、よこ糸切
断端の屈曲による織物耳部の盛り上がりが全くなかっ
た。Further, by impregnating the reinforcing fabric with a room temperature curing type epoxy resin by hand layup, F
An RP cured plate was manufactured. In this FRP cured plate, there was no swelling of the fabric selvage due to the bending of the cut end of the weft thread.
【００３５】[0035]
【発明の効果】上述したように、本発明の補強用織物
は、よこ糸切断端を最外側のたて糸、またはその外側に
配置した補助たて糸と交差する部分で点状または線状に
接着固定して拘束状態にしたので、そのよこ糸切断端が
織物平面に立った状態になることはなく、ＦＲＰ等の複
合材の補強効果を低減させることはない。As described above, in the reinforcing fabric of the present invention, the cut end of the weft thread is adhesively fixed in a dot shape or a linear shape at a portion intersecting with the outermost warp thread or the auxiliary warp thread arranged outside thereof. Since it is in the restrained state, the cut end of the weft thread does not stand in the plane of the fabric, and the reinforcing effect of the composite material such as FRP is not reduced.
【００３６】また、よこ糸切断端の接着固定がたて糸ま
たは補助たて糸に対して点状または線状になるので、Ｆ
ＲＰ等のマトリックス樹脂の含浸が妨げられることがな
く、高性能の複合材を得ることができる。また、本発明
による補強用織物の製造方法は、低融点ポリマーからな
る糸を絡み糸とし、それを加熱溶融させることによりよ
こ糸切断端とたて糸または補助たて糸との接着を行うた
め、よこ糸切断端とたて糸または補助たて糸に点状また
は線状に簡単に接着固定させ、上記性能の補強用織物を
効率よく製造することができる。In addition, since the adhesive fixing of the cut end of the weft thread becomes a dot shape or a linear shape with respect to the warp thread or the auxiliary warp thread, F
A high-performance composite material can be obtained without impeding impregnation of a matrix resin such as RP. Further, in the method for producing a reinforcing fabric according to the present invention, a yarn made of a low-melting polymer is used as an entangled yarn, and the weft cutting end is adhered to the warp yarn or the auxiliary warp yarn by heating and melting the entangled yarn. By simply adhering and fixing the warp yarn or the auxiliary warp yarn in the form of dots or lines, the reinforcing fabric having the above performance can be efficiently produced.
【図１】本発明の実施例からなる補強用織物の斜視図で
ある。FIG. 1 is a perspective view of a reinforcing fabric according to an embodiment of the present invention.
【図２】本発明の他の実施例からなる補強用織物の斜視
図である。FIG. 2 is a perspective view of a reinforcing fabric according to another embodiment of the present invention.
【図３】本発明の製造方法に使用する原反織物を示す斜
視図である。FIG. 3 is a perspective view showing a raw fabric used in the manufacturing method of the present invention.
【図４】図３の原反織物の要部を示す説明図である。FIG. 4 is an explanatory view showing a main part of the raw fabric of FIG. 3.
【図５】本発明の製造方法に使用する他の実施例からな
る原反織物の平面図である。FIG. 5 is a plan view of a raw fabric according to another embodiment used in the manufacturing method of the present invention.
１ 補強用織物 ２ たて糸 ３ よこ糸 ４ 補助たて糸 ５ 接着剤（低融点ポリマー） ６ 絡み糸（上糸） ７ 絡み糸（下糸） １’，１０ 原反織物 1 Reinforcing woven fabric 2 Warp yarn 3 Weft yarn 4 Auxiliary warp yarn 5 Adhesive (low melting point polymer) 6 Entangled yarn (upper yarn) 7 Entangled yarn (lower yarn) 1 ', 10 Raw fabric
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ０６Ｃ 7/00 Ｄ０６Ｃ 7/00 Ａ 25/00 25/00 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location D06C 7/00 D06C 7/00 A 25/00 25/00 A
Claims (11)
し、よこ糸を耳部で切断端に形成した織物であって、該
よこ糸の切断端を最外側に位置するたて糸と交差する部
分で接着剤だけで接着固定した補強用織物。1. A woven fabric in which at least warp yarns are composed of reinforcing fiber yarns and weft yarns are formed at the cut ends at the selvages, and only the adhesive is used at the portion where the cut ends of the weft yarns cross the outermost warp yarns. Reinforcing fabric bonded and fixed with.
ると共に、最外側に位置するたて糸の外側に補助たて糸
を配置し、よこ糸を耳部で切断端に形成した織物であっ
て、該よこ糸の切断端を前記補助たて糸と交差する部分
で接着剤だけで接着固定した補強用織物。2. A woven fabric in which at least warp yarns are composed of reinforcing fiber yarns, auxiliary warp yarns are arranged outside the outermost warp yarns, and the weft yarns are formed at the cut ends at the selvages. A reinforcing woven fabric whose ends are adhered and fixed only with an adhesive at a portion intersecting with the auxiliary warp yarn.
項１または２に記載の補強用織物。3. The reinforcing woven fabric according to claim 1, wherein the adhesive is a low melting point polymer.
素繊維、ガラス繊維及び芳香族ポリアミド繊維から選ば
れた繊維からなる請求項１〜３のいずれか１項に記載の
補強用織物。4. The reinforcing woven fabric according to claim 1, wherein the reinforcing fiber yarn constituting the warp yarn is made of a fiber selected from carbon fiber, glass fiber and aromatic polyamide fiber.
アミド繊維、ポリビニルアルコール繊維、ポリエステル
繊維、ポリアミド繊維、ポリエチレン繊維及びポリプロ
ピレン繊維から選ばれた繊維からなる請求項２〜４のい
ずれか１項に記載の補強用織物。5. The fiber according to claim 2, wherein the weft comprises a fiber selected from glass fiber, aromatic polyamide fiber, polyvinyl alcohol fiber, polyester fiber, polyamide fiber, polyethylene fiber and polypropylene fiber. The reinforcing fabric described.
記補助たて糸／前記補強繊維糸のたて糸の繊度比が１／
３〜１／４０、前記補助たて糸の繊度×密度が1,０００
〜１2,０００デニール・本／cmである請求項２〜５のい
ずれか１項に記載の補強用織物。6. The auxiliary warp weaving width is 2 to 20 mm, and the auxiliary warp yarn / the reinforcing fiber yarn warp yarn fineness ratio is 1 /.
3 to 1/40, the fineness x density of the auxiliary warp yarn is 1,000
The reinforcing woven fabric according to any one of claims 2 to 5, wherein the woven fabric has a denier of 12,000 to about 12,000 / cm.
ポリマーの付着量が、０．０２〜０．２ｇ／ｍである請
求項３〜６のいずれか１項に記載の補強用織物。7. The reinforcing woven fabric according to claim 3, wherein the amount of the low melting point polymer deposited per unit length of the ear portion is 0.02 to 0.2 g / m. .
５００〜３０，０００デニール、サイジング剤付着量が
０．２〜２．０重量％である請求項１〜７のいずれか１
項に記載の補強用織物。8. The warp yarn is substantially non-twisted, has a fineness of 500 to 30,000 denier, and has a sizing agent adhesion amount of 0.2 to 2.0% by weight.
The reinforcing fabric according to the item.
で、前記たて糸の繊度の１／３以下である請求項１〜８
のいずれか１項に記載の補強用織物。9. The fineness of the weft yarn is 100 denier or more and 1/3 or less of the fineness of the warp yarn.
The reinforcing fabric according to any one of 1.
し、よこ糸を耳部で切断端に形成した織物の耳部に低融
点ポリマーからなる糸を絡み糸として挿入し、該織物の
少なくとも耳部を加熱することにより前記絡み糸を溶融
させ、前記よこ糸の切断端を前記織物の最外側に位置す
るたて糸に融着させる補強用織物の製造方法。10. A warp yarn is composed of a reinforcing fiber yarn, and a yarn made of a low melting point polymer is inserted as a entangled yarn into the selvage of a woven fabric in which the weft yarn is formed at the cut end at the selvage, and at least the selvage of the woven fabric is inserted. A method for manufacturing a reinforcing fabric, wherein the entangled yarn is melted by heating and the cut end of the weft yarn is fused to a warp yarn located on the outermost side of the fabric.
すると共に、最外側に位置するたて糸の外側に補助たて
糸を配置し、よこ糸を耳部で切断端に形成した織物の耳
部に低融点ポリマーからなる糸を絡み糸として挿入し、
該織物の少なくとも耳部を加熱することにより前記絡み
糸を溶融させ、前記よこ糸の切断端を前記補助たて糸に
融着させる補強用織物の製造方法。11. At least the warp yarns are made of reinforcing fiber yarns, auxiliary warp yarns are arranged outside the outermost warp yarns, and the weft yarns are formed from the low melting point polymer at the selvages formed at the cut ends. Insert the yarn as entangled yarn,
A method for manufacturing a reinforcing fabric, wherein the entangled yarn is melted by heating at least the selvages of the fabric, and the cut end of the weft yarn is fused to the auxiliary warp yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07077867A JP3102295B2 (en) | 1995-04-03 | 1995-04-03 | Reinforcing fabric and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07077867A JP3102295B2 (en) | 1995-04-03 | 1995-04-03 | Reinforcing fabric and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08269837A true JPH08269837A (en) | 1996-10-15 |
| JP3102295B2 JP3102295B2 (en) | 2000-10-23 |
Family
ID=13646013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07077867A Expired - Fee Related JP3102295B2 (en) | 1995-04-03 | 1995-04-03 | Reinforcing fabric and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3102295B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002535157A (en) * | 1999-01-18 | 2002-10-22 | トワロン プロダクツ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Penetration resistant material including woven fabric with high linear density ratio of two sets of yarns |
| JP2010111980A (en) * | 2008-11-10 | 2010-05-20 | Abedesignpro Co Ltd | Woven fabric product, and method for producing the same |
| JP2010124928A (en) * | 2008-11-26 | 2010-06-10 | Aoyama Hosohaba Orifu:Kk | Curtain liner |
| JP2014132067A (en) * | 2012-12-07 | 2014-07-17 | Gunze Ltd | Method for producing composite mesh sheet |
| KR101421327B1 (en) * | 2011-08-30 | 2014-07-18 | 코오롱인더스트리 주식회사 | Aramid Woven Fabric, Method for Manufacturing The Same, and Method for Manufacturing Aramid Pulp Using The Same |
| WO2016087664A1 (en) * | 2014-12-05 | 2016-06-09 | Clear Edge-Germany Gmbh | Belt edge |
| JP2019154880A (en) * | 2018-03-15 | 2019-09-19 | クラレファスニング株式会社 | Fire-resistant hook-and-loop fastener |
| CN111809296A (en) * | 2020-06-18 | 2020-10-23 | 重庆市华汇纺织有限公司 | Intelligent air jet loom serging device |
-
1995
- 1995-04-03 JP JP07077867A patent/JP3102295B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002535157A (en) * | 1999-01-18 | 2002-10-22 | トワロン プロダクツ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Penetration resistant material including woven fabric with high linear density ratio of two sets of yarns |
| JP2010111980A (en) * | 2008-11-10 | 2010-05-20 | Abedesignpro Co Ltd | Woven fabric product, and method for producing the same |
| JP2010124928A (en) * | 2008-11-26 | 2010-06-10 | Aoyama Hosohaba Orifu:Kk | Curtain liner |
| KR101421327B1 (en) * | 2011-08-30 | 2014-07-18 | 코오롱인더스트리 주식회사 | Aramid Woven Fabric, Method for Manufacturing The Same, and Method for Manufacturing Aramid Pulp Using The Same |
| JP2014132067A (en) * | 2012-12-07 | 2014-07-17 | Gunze Ltd | Method for producing composite mesh sheet |
| WO2016087664A1 (en) * | 2014-12-05 | 2016-06-09 | Clear Edge-Germany Gmbh | Belt edge |
| AU2015356982B2 (en) * | 2014-12-05 | 2019-05-02 | Clear Edge-Germany Gmbh | Belt edge |
| JP2019154880A (en) * | 2018-03-15 | 2019-09-19 | クラレファスニング株式会社 | Fire-resistant hook-and-loop fastener |
| CN111809296A (en) * | 2020-06-18 | 2020-10-23 | 重庆市华汇纺织有限公司 | Intelligent air jet loom serging device |
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| Publication number | Publication date |
|---|---|
| JP3102295B2 (en) | 2000-10-23 |
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