JP2002302864A - Method of producing laminated nonwoven fabric - Google Patents
Method of producing laminated nonwoven fabricInfo
- Publication number
- JP2002302864A JP2002302864A JP2001103700A JP2001103700A JP2002302864A JP 2002302864 A JP2002302864 A JP 2002302864A JP 2001103700 A JP2001103700 A JP 2001103700A JP 2001103700 A JP2001103700 A JP 2001103700A JP 2002302864 A JP2002302864 A JP 2002302864A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- laminated
- fiber
- composite material
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、不織ウエッブ又は
不織布に複合材料用繊維群を積層する不織布の製造方法
に関する。得られた複合材料用繊維積層不織布はそのま
まで又は予備形成体として使用されるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a nonwoven fabric by laminating a fiber group for a composite material on a nonwoven web or a nonwoven fabric. The obtained fiber laminated nonwoven fabric for a composite material is used as it is or as a preform.
【０００２】[0002]
【従来の技術】従来より、不織布の強度を補強するため
にガラス繊維などの補強繊維を不織ウエッブ又は不織布
と積層複合することが行われている。例えば、米国特許
第5118550号公報では、不織布ウエッブ製造工程で補強
繊維であるガラスヤーンをクリールより引き出し、不織
布ウエッブの上に積層したり、不織布ウエッブの中間層
にガラスヤーンを挿入するものであり、ガラスヤーン切
断時の修正やボビン替えや品番切替等の作業性が非常に
悪く、また、不織布ウエッブ製造工程でガラスヤーンを
挿入するため、設備が過大となり、設備費及び設置場所
が大きくコスト高になる問題があった。また、従来の方
法では、積層される複合材料用繊維群の加工張力に差が
生じ、得られる積層体にソリ、曲がり等の外観不良が発
生し易い欠点があった。2. Description of the Related Art Hitherto, in order to reinforce the strength of a nonwoven fabric, a reinforcing fiber such as a glass fiber has been laminated and composited with a nonwoven web or a nonwoven fabric. For example, in U.S. Pat. Workability such as correction when cutting glass yarn, bobbin change, part number switching, etc. is extremely poor.In addition, since glass yarn is inserted in the nonwoven fabric web manufacturing process, equipment becomes excessive, equipment cost and installation location are large, and cost is high. There was a problem. Further, in the conventional method, there is a difference in processing tension of the composite material fiber group to be laminated, and the resulting laminated body has a defect in that appearance defects such as warping and bending are likely to occur.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記従来の
不織ウエッブ又は不織布に複合材料用繊維群を積層する
方法における上記欠点を改善するものであり、即ち、補
強繊維が切断した時の修正やボビン替え、品番切替等の
作業性に優れ、かつ製造設備が過大にならず、不織ウエ
ッブ又は不織布に複合材料用繊維群を簡易に積層するこ
とができるのみならず、積層体でのソリ、曲がり等の外
観不良の発生を防止する積層不織布の製造方法を提供し
ようとするものである。SUMMARY OF THE INVENTION The present invention aims to improve the above-mentioned drawbacks in the conventional method of laminating a fiber group for a composite material on a nonwoven web or a nonwoven fabric, that is, when the reinforcing fibers are cut. It is excellent in workability such as correction, bobbin change, part number switching, etc., and the manufacturing equipment is not excessive, and not only can the composite material fiber group be easily laminated on a nonwoven web or nonwoven fabric, but also in a laminate. An object of the present invention is to provide a method for manufacturing a laminated nonwoven fabric that prevents appearance defects such as warpage and bending.
【０００４】[0004]
【課題を解決するための手段】即ち、本発明は、不織ウ
エッブ又は不織布に複合材料用繊維群を積層してニード
ルパンチ工程で不織ウエッブ又は不織布と複合材料用繊
維とを連続的に絡合一体化させるに際し、複数本の複合
材料用繊維を、クリールから引き出し、筬及び／又は張
力制御装置を介在させて一方向に配列させ、かつ走行す
る不織ウエッブ又は不織布に駆動フィードニップロール
装置より一定速度で供給して積層しながら、フェルティ
ングニードルを用いてニードルパンチする事を特徴とす
る積層不織布の製造方法である。That is, the present invention provides a method of laminating a fiber group for a composite material on a nonwoven web or a nonwoven fabric and continuously entangles the nonwoven web or nonwoven fabric with the fiber for a composite material in a needle punching step. At the time of combining and unifying, a plurality of composite material fibers are pulled out of the creel, arranged in one direction with a reed and / or a tension control device interposed therebetween, and driven from a drive feed nip roll device to a running nonwoven web or nonwoven fabric. This is a method for producing a laminated nonwoven fabric, which comprises performing needle punching using a felting needle while supplying and laminating at a constant speed.
【０００５】[0005]
【発明の実施の形態】本発明における不織ウエッブ又は
不織布（以下、単に不織布と記す）としては、長繊維、
短繊維のいずれでもよく、例えば、短繊維のカード不織
布、サマーマルボンド不織布、ウォータジェット法によ
るスパンレース不織布、ステッチボンド不織布、スパン
ボンド不織布、スパンボンド方式により形成され、かつ
熱圧着された不織布などが挙げられるがこれらに限定さ
れるものではない。DESCRIPTION OF THE PREFERRED EMBODIMENTS The nonwoven web or nonwoven fabric (hereinafter simply referred to as nonwoven fabric) in the present invention includes long fibers,
Any of short fibers may be used, for example, short fiber card nonwoven fabric, summer bonded nonwoven fabric, spunlace nonwoven fabric by water jet method, stitch bonded nonwoven fabric, spunbonded nonwoven fabric, nonwoven fabric formed by spunbonding method and thermocompression-bonded But are not limited to these.
【０００６】不織布の素材としては、木綿、羊毛、絹な
どの天然繊維、レーヨンなどの半合成繊維、ポリエステ
ル、ポリアミド、ポリオレフィン、ＰＶＡ、ビニロンな
どの合成繊維、高強力ポリエチレン繊維、アラミド系繊
維などのハイモジュラス繊維などであり、特に限定され
るものではない。Examples of the material of the nonwoven fabric include natural fibers such as cotton, wool and silk, semi-synthetic fibers such as rayon, synthetic fibers such as polyester, polyamide, polyolefin, PVA and vinylon, high-strength polyethylene fibers and aramid fibers. It is a high modulus fiber or the like, and is not particularly limited.
【０００７】合成繊維の中で、製造のし易さ、性能とコ
ストのバランス、リサイクル材料用の利用などの観点か
らポリエステル系繊維が好ましい。ポリエステル系繊維
としては、ポリエチレンテレフタレート、ポリブチレン
テレフタレートなどはもとより、イソフタル酸、アジピ
ン酸、ジエチレングリコール、トリメチレングリコー
ル、ポリテトラメチレングルコールなどの共重合成分の
共重合ポリエステル、ポリエチレンナフタレート及びこ
れらの共重合物も使用することができる。またこれらの
共重合物からなる繊維で芯鞘構造又はサイドバイサイド
等の複合繊維であっても良い。[0007] Among synthetic fibers, polyester fibers are preferred from the viewpoint of ease of production, balance between performance and cost, utilization of recycled materials, and the like. Examples of the polyester fibers include polyethylene terephthalate, polybutylene terephthalate, and the like, as well as copolymerized polyester, polyethylene naphthalate, and copolymers of copolymer components such as isophthalic acid, adipic acid, diethylene glycol, trimethylene glycol, and polytetramethylene glycol. Polymers can also be used. Further, composite fibers having a core-in-sheath structure or a side-by-side structure made of these copolymers may be used.
【０００８】積層される不織布の目付は、求められる特
性によって適宜選択されるが、通常４０〜５００g／ｍ2
であり、性能、製品重量、コストなどの関係から４０〜
２００g／ｍ2が好ましい。不織布繊維の繊度は、特に限
定されないが、通常１〜２２ｄｔｅｘであり、製造のし
易さから２〜１７ｄｔｅｘが好ましい。[0008] The basis weight of the nonwoven fabric to be laminated is appropriately selected depending on the required properties, and is usually 40 to 500 g / m 2.
It is 40 ~ from the relationship of performance, product weight, cost, etc.
200 g / m 2 is preferred. The fineness of the nonwoven fabric fiber is not particularly limited, but is usually 1 to 22 dtex, and preferably 2 to 17 dtex from the viewpoint of easy production.
【０００９】不織布が合成繊維の場合、通常、溶融紡糸
されてウェッブが形成されるが、必要に応じて、溶融紡
糸の段階で開繊性改良剤を、また紡糸或はウェッブ形成
の段階で酸化防止剤、安定剤、紫外線吸収剤などを付与
することができる。不織布が合成繊維でない場合や熱可
塑性でない場合は、ポリエステル、ポリアミド、ポリエ
チレンなどの公知のホットメルト型のバインダー繊維を
混用することができる。When the non-woven fabric is a synthetic fiber, it is usually melt-spun to form a web. However, if necessary, an opening-improving agent is used in the melt-spinning step, and an oxidizing agent is used in the spinning or web-forming step. Inhibitors, stabilizers, ultraviolet absorbers and the like can be added. When the nonwoven fabric is not a synthetic fiber or non-thermoplastic, known hot-melt type binder fibers such as polyester, polyamide, and polyethylene can be mixed.
【００１０】本発明における複合材料用繊維とは、補強
効果を得る事が出来る複合材料用繊維であり、例えば、
炭素繊維、鉱物繊維、ガラス繊維、金属繊維などの無機
繊維やポリアラミド系、ポリエーテルケトン、ポリエー
テルスルホン、ポリベンゾオキサゾールなどの高弾性有
機繊維を挙げることができ、これらは、用途に応じて適
宜選択できる。これらの繊維は、引張り強さが4.0g／ｄ
ｔｅｘ以上、伸度が４０％以下、180℃乾熱収縮率が3.0
％以下であることが好ましい。引張り強さが4.0g／ｄｔ
ｅｘ未満であると、補強効果が低く、又180℃乾熱収縮
率が3.0％を超えると、アスファルト加工などの高温で
の加工の際、熱履歴により収縮し加工製品としてソリが
発生することがある。The fiber for composite material in the present invention is a fiber for composite material capable of obtaining a reinforcing effect.
Examples thereof include inorganic fibers such as carbon fiber, mineral fiber, glass fiber, and metal fiber, and highly elastic organic fibers such as polyaramid, polyetherketone, polyethersulfone, and polybenzoxazole. You can choose. These fibers have a tensile strength of 4.0 g / d.
tex or more, elongation 40% or less, 180 ° C dry heat shrinkage 3.0
% Is preferable. 4.0 g / dt tensile strength
If it is less than ex, the reinforcing effect is low, and if the dry heat shrinkage exceeds 180% at 180 ° C, during hot work such as asphalt processing, it shrinks due to heat history and warpage may occur as a processed product. is there.
【００１１】本発明における複合材料用繊維は、例え
ば、図１に示すように、ケーキ、ボビン、リールなど捲
かれてパッケージ状態１でクリールスタンドにセットさ
れ、複数本の複合材料用繊維は、クリールからテンショ
ンガイド（張力制御装置）２を介して引き出されて筬３
〜５を通して互いに平行で所望の間隔（ピッチ）に配列
され、長手方向に走行可能なようにセットされる。この
配列されてなる複数本の複合材料用繊維は、駆動式フィ
ードニップロール装置８を介在させて一定速度で、更に
筬６〜７を通してニードルパンチ機へ供給される。As shown in FIG. 1, for example, the fiber for composite material according to the present invention is wound on a cake, bobbin, reel or the like and set in a creel stand in a package state 1. From the reed 3 through a tension guide (tension control device) 2
5 are arranged in parallel with each other at a desired interval (pitch), and are set so that they can travel in the longitudinal direction. The plurality of fibers for the composite material arranged in this manner are further supplied to the needle punching machine through the reeds 6 to 7 at a constant speed through the drive type feed nip roll device 8.
【００１２】一方、積層させる不織布は、配列された複
数本の複合材料用繊維の上方と下方からニードルパンチ
機へ供給できるようにセットされ、ニードルパンチ機へ
供給される。不織布及び複数本の複合材料用繊維は、ニ
ードルパンチ機のフィードニップロール９の所で不織布
／複数本の複合材料用繊維／不織布の３層に重ね合わさ
れた後、ニードルパンチ処理が施される。ニードルパン
チ処理された積層不織布は、デリベリーロール１０を経
て次の工程に供給される。On the other hand, the nonwoven fabric to be laminated is set so that it can be supplied to the needle punching machine from above and below the arranged plurality of composite material fibers, and is supplied to the needle punching machine. The nonwoven fabric and the plurality of composite material fibers are superposed on three layers of nonwoven fabric / plurality of composite material fibers / nonwoven fabric at the feed nip roll 9 of the needle punching machine, and then subjected to needle punching treatment. The laminated nonwoven fabric subjected to the needle punching is supplied to the next step via the delivery roll 10.
【００１３】本発明において、クリールから供給される
複合材料用繊維群は、駆動式フィードニップロール装置
に供給されることにより、次工程のニードルパンチのフ
ィードニップロールとデリベリーロール間の速度を調整
することができ、複合材料用繊維群の張力をコントロー
ルする事ができ、積層体のソリ、曲がり等の外観不良の
発生を防止することができる。通常、不織布積層体をニ
ードルパンチすると、フェルティングニードルのバーブ
に繊維が引っ掛かり垂直方向に繊維移動が起こるため、
不織布積層体の端部が変形する、所謂、巾入り現象が発
生する。このため駆動式フィードニップロール装置を設
けない場合、複合材料用繊維群の張力はニードルパンチ
工程で発生する巾入り現象に引きずられて巾方向で制御
出来なくなり易い。即ち、積層される複合材料用繊維群
の加工張力に差が生じ、操業性が悪化するとともに得ら
れる積層体にソリ、曲がり等の外観不良が発生し易くな
る。In the present invention, the fiber group for the composite material supplied from the creel is supplied to a drive type feed nip roll device to adjust the speed between the feed nip roll and the delivery roll of the needle punch in the next step. This makes it possible to control the tension of the fiber group for a composite material, thereby preventing appearance defects such as warpage and bending of the laminate. Usually, when needle-punching a nonwoven fabric laminate, the fiber is caught on the barb of the felting needle and the fiber moves in the vertical direction,
A so-called width phenomenon occurs in which the end of the nonwoven fabric laminate is deformed. For this reason, when the drive type feed nip roll device is not provided, the tension of the composite material fiber group tends to be dragged by the width-in phenomenon that occurs in the needle punching process and cannot be controlled in the width direction. That is, a difference occurs in the processing tension of the composite material fiber group to be laminated, the operability is deteriorated, and the resulting laminated body is liable to cause appearance defects such as warpage and bending.
【００１４】本発明における複数本の複合材料用繊維
は、不織布の長手方向に平行に所定の間隔で挿入積層さ
れるが、挿入ピッチは、３〜３０ｍｍが好ましく、３〜
１０ｍｍがより好ましい。挿入ピッチを大きくするとア
スファルトなどの含浸後に不織布の収縮により表面に凸
凹が発生しやすくなり、又挿入ピッチを小さくすると物
性上の問題はないが、繊維使用量が増えるだけ不経済で
ある。In the present invention, a plurality of fibers for a composite material are inserted and laminated at predetermined intervals in parallel with the longitudinal direction of the nonwoven fabric, and the insertion pitch is preferably 3 to 30 mm, and 3 to 30 mm.
10 mm is more preferred. If the insertion pitch is increased, the surface of the nonwoven fabric tends to be uneven due to shrinkage after impregnation with asphalt or the like. If the insertion pitch is reduced, there is no problem in physical properties, but it is uneconomical as the amount of fibers used increases.
【００１５】ニードルパンチ処理は、挿入糸と不織布と
を交絡させて積層不織布としての強度を向上させるため
に行なわれるが、ニードルパンチ処理における針密度
は、２０〜１２０本／ｃｍ2にすることが好ましい。針
密度が２０本／ｃｍ2未満では、交絡性が悪く積層効果
が発現され難く、針密度が１２０本／ｃｍ2を超える
と、積層不織布の表面の凹凸が大きくなったり、ガラス
繊維の破断が起こり易くなる。The needle punching treatment is performed in order to improve the strength of the laminated nonwoven fabric by entanglement of the inserted yarn and the nonwoven fabric. The needle density in the needle punching treatment is set to 20 to 120 needles / cm 2. preferable. When the needle density is less than 20 needles / cm 2 , the confounding property is poor and the laminating effect is hardly exhibited, and when the needle density exceeds 120 needles / cm 2 , the unevenness of the surface of the laminated nonwoven fabric becomes large, or the glass fiber breaks. More likely to happen.
【００１６】ニードルパンチ処理された積層不織布は、
必要により、次いで加熱圧着処理及び／又は樹脂含浸処
理が施される。ニードルパンチ工程で一体化された積層
不織布をさらに加熱処理する目的は、表裏の繊維を固定
するとともに繊維間距離を最密充填させる事で基布とし
ての剛性を付与するためである。加熱処理の方法として
は、エンボスロールとフラットカレンダー間で熱圧着す
ることが好ましい。この方法により、初期強力低下を抑
制して、剛性を付与することができる。加工時の線圧は
５０〜５００Ｎ／ｃｍが好ましく、より好ましくは１０
０〜３００Ｎ／cmである。低線圧の場合は二層の繊維不
織布の熱固定が不十分で基布としての剛性が得られにく
い。又、高線圧の領域で加工すると中間層に挿入したガ
ラス繊維がエンボスロールにより切断されて、得られる
基布の初期応力が大巾に低下する傾向がある。さらに、
加熱圧着処理において、フラット／フラットのカレンダ
ーロールを使用すると二層の不織布が熱圧着され繊維間
距離を最密充填する事は可能であるがドレープ性が増し
てしまう。The laminated nonwoven fabric subjected to the needle punching process is as follows:
If necessary, a thermocompression treatment and / or a resin impregnation treatment are then performed. The purpose of further heat-treating the laminated nonwoven fabric integrated in the needle punching step is to provide rigidity as a base fabric by fixing the fibers on the front and back and filling the distance between the fibers in the closest density. As a heat treatment method, it is preferable to perform thermocompression bonding between the embossing roll and the flat calender. According to this method, rigidity can be imparted while suppressing a decrease in initial strength. The linear pressure during processing is preferably 50 to 500 N / cm, more preferably 10 to 500 N / cm.
0 to 300 N / cm. In the case of a low linear pressure, the heat fixation of the two-layer fiber nonwoven fabric is insufficient, and it is difficult to obtain rigidity as a base fabric. Further, when processing is performed in a region of high linear pressure, the glass fiber inserted into the intermediate layer is cut by the embossing roll, and the initial stress of the obtained base fabric tends to be significantly reduced. further,
If a flat / flat calender roll is used in the thermocompression bonding process, the two-layer nonwoven fabric can be thermocompressed and the distance between the fibers can be filled in a close-packed manner, but the drapability increases.
【００１７】ニードルパンチ処理で絡合一体化させ、さ
らに不織布を加熱圧着処理した積層不織布は、不織布の
繊維間どうしの交点を強固に固定するために、バインダ
ー樹脂含浸処理することが好ましい。但し、前記のバイ
ンダー繊維が不織布に混用されている場合は、バインダ
ー樹脂含浸処理は、省略することができる。The laminated nonwoven fabric obtained by entanglement and integration by a needle punching process and further heat-pressing the nonwoven fabric is preferably impregnated with a binder resin in order to firmly fix the intersections between the fibers of the nonwoven fabric. However, when the binder fibers are mixed in the nonwoven fabric, the binder resin impregnation treatment can be omitted.
【００１８】使用されるバインダー樹脂としては、尿素
系、メラミン系、アクリル系、エポキシ系等の熱硬化性
樹脂、熱可塑性樹脂など公知のものを使用することがで
き、これらは適宜併用して使用される。バインダー樹脂
の付着量は、積層不織布の３〜５０質量％が好ましく、
５〜３０質量％が特に好ましい。バインダーの付着量が
多すぎると、あとで含浸させるアスファルトなどの含浸
性が低下する。逆に少なすぎるとアスファルト含浸工程
などでの工程張力に絶えきれずに破断や捲き付きトラブ
ルを発生することがある。As the binder resin to be used, known resins such as thermosetting resins such as urea-based, melamine-based, acrylic-based, and epoxy-based resins and thermoplastic resins can be used. Is done. The adhesion amount of the binder resin is preferably 3 to 50% by mass of the laminated nonwoven fabric,
Especially preferred is 5 to 30% by mass. If the amount of the binder attached is too large, the impregnating property of asphalt or the like to be impregnated later is reduced. On the other hand, if the amount is too small, the process tension in the asphalt impregnation step or the like may not be constant and breakage or winding trouble may occur.
【００１９】[0019]
【実施例】（実施例１）融点２６０℃、極限粘度０．６
３のポリエチレンテレフタレートを、口径０．３０ｍ
ｍ、３００ホールの紡糸ノズルを用いて単孔吐出量
１．５ｇ／分・孔、溶融温度２８５℃で吐出させ、紡糸
速度４５００ｍ／分でエジェクターで牽引し細化・冷却
して引き取り後、得られた繊維を金属ネット上に捕集し
ウェッブとした。このウェッブを熱圧着ロールで弱圧着
し不織布とした。得られた不織布の目付は７０ｇ／ｍ2
であった。EXAMPLES (Example 1) Melting point: 260 ° C., intrinsic viscosity: 0.6
3 polyethylene terephthalate, 0.30m diameter
m, single-hole discharge amount using a 300-hole spinning nozzle
Discharged at 1.5 g / min / hole, melting temperature: 285 ° C., pulled by an ejector at a spinning speed of 4500 m / min, thinned, cooled, and taken out. The obtained fiber was collected on a metal net to form a web. . The web was weakly pressed with a thermocompression roll to form a nonwoven fabric. The basis weight of the obtained nonwoven fabric is 70 g / m 2.
Met.
【００２０】次に、上記製造法で得られた不織布を表裏
に配置し、クリールスタンドにセットしたガラス繊維
（ＥＣ９３４Ｚ２８Ｔ３０、VETROTEX社製）をクリール
から引き出し、テンションガイド（張力制御装置）及び
筬を介在させ、長手方向に互いに平行に３ｍｍピッチで
配列させ、駆動式フィードニップロールで一定速度でニ
ートルパンチ機に供給するとともに、該ガラス繊維群の
上方と下方から上記製造法で得られた不織布を重ね合わ
せて、オルガン社製のニードル針（ＦＰＤ １−４０）
を具備するニートルパンチ機で、針密度６０本／ｃｍ2
でニードルパンチ処理し、中間層にガラス繊維を挿入し
た積層不織布を得た。該積層不織布の安定生産が可能
で、かつ積層不織布の端部にソリ（波打ち）は認められ
なかった。次いで、該積層不織布を185℃のエンボスロ
ールとフラットカレンダー間で加熱熱圧着処理後に、尿
素メラミン樹脂とアクリル系樹脂との混合樹脂の含浸処
理を定法により施し、ガラス繊維積層補強不織布を得
た。得られたガラス繊維積層補強不織布について表１に
示す。得られたガラス繊維積層補強不織布はガラス繊維
の弛みもなく、積層不織布の端部のソリ（波打ち）も認
められなかった。Next, the nonwoven fabric obtained by the above manufacturing method is placed on the front and back, glass fibers (EC934Z28T30, manufactured by VETROTEX) set on a creel stand are pulled out from the creel, and a tension guide (tension control device) and a reed are interposed. Then, they are arranged at a pitch of 3 mm parallel to each other in the longitudinal direction, and supplied to a nitrile punch machine at a constant speed by a driven feed nip roll, and the nonwoven fabric obtained by the above-described manufacturing method is overlapped from above and below the glass fiber group. In addition, a needle (Organic needle) (FPD 1-40)
Needle density of 60 needles / cm 2
To obtain a laminated nonwoven fabric in which glass fibers were inserted into the intermediate layer. Stable production of the laminated nonwoven fabric was possible, and no warping was observed at the end of the laminated nonwoven fabric. Next, the laminated non-woven fabric was subjected to heat and pressure bonding between an embossing roll at 185 ° C. and a flat calender, and then impregnated with a mixed resin of a urea melamine resin and an acrylic resin by a conventional method to obtain a glass fiber laminated reinforced non-woven fabric. Table 1 shows the obtained glass fiber laminated reinforced nonwoven fabric. The obtained glass fiber laminated reinforced nonwoven fabric did not have slackness of the glass fiber, and no warping of the end portion of the laminated nonwoven fabric was observed.
【００２１】（比較例１）実施例１記載の製造法におい
てガラス繊維を一定速度で供給する駆動式フィードニッ
プロールを使用しない以外は実施例１と同様にして積層
不織布の製造を試みたが、駆動式フィードニップロール
を使用しないと、巾入り現象で端部と中央部のガラス繊
維張力が制御出来ずに端部のガラス繊維が弛み、筬等に
ガラス繊維が詰まり、糸切れが発生し、安定製造できる
状態ではなかった。また、得られた積層不織布も端部に
ソリ（波打ち）が発生していた。(Comparative Example 1) A laminated nonwoven fabric was produced in the same manner as in Example 1 except that a driving feed nip roll for supplying glass fibers at a constant speed was not used in the production method described in Example 1. If the feed nip roll is not used, the glass fiber tension at the end and the central part cannot be controlled due to the width-in phenomenon, the glass fiber at the end is loosened, the glass fiber is clogged in the reed, etc. I wasn't ready. Moreover, the obtained laminated nonwoven fabric also had warpage (wavy) at the end.
【００２２】[0022]
【表１】 （注）速度比率−１：ガラス繊維を供給する駆動フィー
ドニップロール速度とニードルパンチ機のフィードニッ
プロール速度との比率を示す。速度比率−２：ニードル
パンチ機のデリベリロール速度とフィードニップロール
速度との比率を示す。[Table 1] (Note) Speed ratio-1: Indicates the ratio between the drive feed nip roll speed for supplying the glass fiber and the feed nip roll speed of the needle punching machine. Speed ratio-2: Indicates the ratio between the delivery roll speed of the needle punch machine and the feed nip roll speed.
【００２３】[0023]
【発明の効果】本発明によれば、補強繊維が切断した時
の修正やボビン替え、品番切替等の作業性に優れ、かつ
製造設備が過大にならず、不織ウエッブ又は不織布に複
合材料用繊維群を簡易に積層することができるのみなら
ず、積層体でのソリ、曲がり等の外観不良の発生を防止
することが可能である。According to the present invention, it is excellent in workability such as correction when the reinforcing fiber is cut, bobbin change, part number switching, etc., and the production equipment is not excessively large. Not only can the fiber group be simply laminated, it is possible to prevent appearance defects such as warpage and bending in the laminate.
【図１】本発明の積層不織布の製造方法の工程の概略を
示す模式図である。FIG. 1 is a schematic view showing an outline of steps of a method for producing a laminated nonwoven fabric of the present invention.
１：複合繊維材料のパッケージ ２：張力制御装置（テンションガイド） ３〜７：筬 ８：駆動式フィードニップロール ９：フィードニップロール １０：デリベリーロール 1: Composite fiber material package 2: Tension control device (tension guide) 3 to 7: Reed 8: Driving feed nip roll 9: Feed nip roll 10: Delivery berry roll
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4L047 AA05 BA03 BA23 CA03 CA05 EA08 EA14 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4L047 AA05 BA03 BA23 CA03 CA05 EA08 EA14
Claims (1)
群を積層してニードルパンチ工程で不織ウエッブ又は不
織布と複合材料用繊維とを連続的に絡合一体化させるに
際し、複数本の複合材料用繊維を、クリールから引き出
し、筬及び／又は張力制御装置を介在させて一方向に配
列させ、かつ走行する不織ウエッブ又は不織布に駆動式
フィードニップロール装置より一定速度で供給して積層
しながら、フェルティングニードルを用いてニードルパ
ンチする事を特徴とする積層不織布の製造方法。When a nonwoven web or a nonwoven fabric and a composite material fiber are continuously entangled and integrated in a needle punching step, a plurality of composite fibers are laminated. The fibers for the material are pulled out of the creel, arranged in one direction with a reed and / or a tension control device interposed therebetween, and supplied to the running nonwoven web or nonwoven fabric at a constant speed from a driven feed nip roll device while being laminated. And a needle punching using a felting needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103700A JP3632844B2 (en) | 2001-04-02 | 2001-04-02 | Method for producing laminated nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103700A JP3632844B2 (en) | 2001-04-02 | 2001-04-02 | Method for producing laminated nonwoven fabric |
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| Publication Number | Publication Date |
|---|---|
| JP2002302864A true JP2002302864A (en) | 2002-10-18 |
| JP3632844B2 JP3632844B2 (en) | 2005-03-23 |
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|---|---|---|---|
| JP2001103700A Expired - Fee Related JP3632844B2 (en) | 2001-04-02 | 2001-04-02 | Method for producing laminated nonwoven fabric |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460276A (en) * | 2015-03-24 | 2017-02-22 | 株式会社爱克斯山崎 | Sewing of plurality of pieces of fabric and sewing machine for same |
| CN114734691A (en) * | 2022-05-17 | 2022-07-12 | 福建省远辉纺织科技有限公司 | Production method of composite warp-knitted fabric |
| CN114960040A (en) * | 2022-06-08 | 2022-08-30 | 南通大学 | Preparation method of composite non-woven material formed by needling/chemical bonding in synchronization |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310091B (en) * | 2014-09-19 | 2016-09-28 | 浙江梅盛实业股份有限公司 | A kind of unwinding device linked with main frame and installation method thereof |
-
2001
- 2001-04-02 JP JP2001103700A patent/JP3632844B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460276A (en) * | 2015-03-24 | 2017-02-22 | 株式会社爱克斯山崎 | Sewing of plurality of pieces of fabric and sewing machine for same |
| CN114734691A (en) * | 2022-05-17 | 2022-07-12 | 福建省远辉纺织科技有限公司 | Production method of composite warp-knitted fabric |
| CN114734691B (en) * | 2022-05-17 | 2023-09-08 | 福建省远辉纺织科技有限公司 | Production method of composite warp knitted fabric |
| CN114960040A (en) * | 2022-06-08 | 2022-08-30 | 南通大学 | Preparation method of composite non-woven material formed by needling/chemical bonding in synchronization |
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| Publication number | Publication date |
|---|---|
| JP3632844B2 (en) | 2005-03-23 |
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