JPH0659473U - Spinneret for multi-layer composite fiber - Google Patents
Spinneret for multi-layer composite fiberInfo
- Publication number
- JPH0659473U JPH0659473U JP436693U JP436693U JPH0659473U JP H0659473 U JPH0659473 U JP H0659473U JP 436693 U JP436693 U JP 436693U JP 436693 U JP436693 U JP 436693U JP H0659473 U JPH0659473 U JP H0659473U
- Authority
- JP
- Japan
- Prior art keywords
- capillary
- component
- guide hole
- hole
- discharge
- 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
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
(57)【要約】
【構成】 上部にＢ成分用の吐出誘導孔と下部に複合流
の誘導孔と吐出孔からなる紡糸孔を有する下口金板と、
この紡糸孔に対してＡ成分用のキャピラリー及びＢ成分
用の案内孔を設けた上口金板とからなり、キャピラリー
の外周部にＢ成分を供給する切り欠きを設け、キャピラ
リーよりＡ成分を誘導孔側に供給するためのキャピラリ
ー吐出孔を切り欠きの間に設け、キャピラリーの先端と
複合流の吐出孔との間に、Ａ、Ｂ成分が合流する平面通
路を設けた複合繊維用紡糸口金。
【効果】 均斉度が優れ、容易にフィブリル化して極細
繊維になりやすい、多層型複合繊維を生産性よく得るこ
とが可能となる。
(57) [Summary] [Structure] A lower-end metal plate having a discharge guide hole for component B in the upper part and a spinning hole composed of a composite flow guide hole and a discharge hole in the lower part
The spinning hole is composed of a capillary for the A component and an upper mouth plate provided with a guide hole for the B component, and a notch for supplying the B component is provided on the outer peripheral portion of the capillary to guide the A component from the capillary. A spinneret for a composite fiber, in which a capillary discharge hole for supplying to the side is provided between the notches, and a flat passage through which the A and B components merge is provided between the tip of the capillary and the discharge hole of the composite flow. [Effect] It becomes possible to obtain a multi-layer type composite fiber with excellent productivity, which is easy to fibrillate and becomes an ultrafine fiber with high productivity.
Description
【０００１】[0001]
本考案は、フィブリル化して極細繊維になりやすい、多層状に異種のポリマー を配した多層型複合繊維を溶融紡糸するための紡糸口金に関するものである。 The present invention relates to a spinneret for melt-spinning a multi-layer composite fiber in which different kinds of polymers are arranged in a multi-layer structure, which is easily fibrillated into ultrafine fibers.
【０００２】[0002]
衣料用の不織布の基材として使われる直径が10ミクロン未満の極細繊維は、通 常の太さの鞘−多芯型複合繊維を紡糸した後、鞘部を溶解除去したり、鞘部を機 械的に破壊して芯成分を露出させる方法によって得られている。 鞘−多芯型複合繊維を製造するために使用される紡糸口金装置は、特公昭44-1 3208号公報、特公昭44-18369号公報、特公昭46-3820 号公報、特公昭46-25528号 公報等に開示されている。これらは、少なくとも２種の紡糸液を貼合わせたり、 被覆複合型または並進型吐出機構により複合流とし、その複数本を合流して紡糸 する構造を有している。また、実公昭44-2166 号公報には、前記の複合流を空間 において一旦合流した後、再び２つ以上の流れに分割して、前記と同様の吐出機 構で再複合し、紡糸する構造を持つ紡糸口金が開示されている。 The ultrafine fibers with a diameter of less than 10 microns used as the base material for non-woven fabrics for clothing are made by spinning a sheath-multicore composite fiber of ordinary thickness, and then dissolving and removing the sheath part It is obtained by a method of mechanically breaking to expose the core component. The spinneret device used for producing the sheath-multicore composite fiber is disclosed in Japanese Patent Publication No. 44-1 3208, Japanese Patent Publication No. 44-18369, Japanese Patent Publication No. 46-3820, and Japanese Patent Publication No. 46-25528. It is disclosed in Japanese Patent Publication No. These have a structure in which at least two kinds of spinning solutions are pasted together, or a composite flow is formed by a coating composite type or a translational discharge mechanism, and a plurality of them are joined to perform spinning. Further, Japanese Utility Model Publication No. 44-2166 discloses a structure in which the composite flow is once merged in a space, then divided again into two or more flows, recombined by the same discharge mechanism as described above, and spun. A spinneret having is disclosed.
【０００３】 これらの紡糸口金装置を用いた場合、紡糸液の複合が多いため、装置が複雑に なり設備費が高価となる。また、２種以上の紡糸液の複合前後に滞留部ができや すく、この滞留部で紡糸液の混合、反応、分解等による劣化が起こり、品質の良 好な糸条が得難いという欠点があった。When these spinneret devices are used, since the spinning solution is often complex, the device becomes complicated and the equipment cost becomes expensive. In addition, a stagnant portion is easily formed before and after the combination of two or more kinds of spinning solutions, and deterioration occurs due to mixing, reaction, decomposition, etc. of the spinning solutions in this stagnant area, and it is difficult to obtain a yarn of good quality. It was
【０００４】 さらに、得られた鞘−多芯型複合繊維から極細繊維を得る工程においても、鞘 成分を溶解する方法の場合、工程が複雑であり、また、鞘部がロスとなる上に多 量の溶剤、薬液が必要であり、生産コストが高くなる。 また、鞘部を芯部と機械的に剥離させる方法においては、剥離させるのに相当 大きな力を必要とし、鞘部のみでなく芯部まで破壊される欠点をもつだけでなく 、繊維表面を剥離させることができても、内部まで円滑に剥離させることは困難 であり、極細繊維が得難いという欠点を有していた。Further, even in the step of obtaining ultrafine fibers from the obtained sheath-multicore type composite fiber, in the case of the method of dissolving the sheath component, the process is complicated, and the sheath portion is lost and many A large amount of solvent and chemicals are required, which increases the production cost. Further, in the method of mechanically peeling the sheath from the core, a considerable amount of force is required for peeling, and not only has the defect that not only the sheath but also the core is broken, the fiber surface is peeled off. Even if it can be made, it is difficult to smoothly exfoliate to the inside, and there is a drawback that it is difficult to obtain ultrafine fibers.
【０００５】 また、特公昭52-25451号公報には、複数個の紡糸孔を有する口金において、１ 紡糸孔に対して先端に絞り部を有する複数個の１成分液の案内孔を設けた分配板 を配設し、他成分液の供給源と紡糸孔とを連通させた紡糸口金が開示されている が、１紡糸孔に対して複数個の案内孔を開口するには、案内孔が連通しないよう に、紡糸孔間の間隙を大きくとる必要があり、単位面積当りの紡糸孔の多孔化を 計るためには、口金の構造も複雑となる。このため、層の数が制限され、生産性 が悪かった。Further, Japanese Patent Publication No. 52-25451 discloses a spinneret having a plurality of spinning holes, in which a plurality of one-component liquid guide holes each having a narrowed portion at the tip are provided for one spinning hole. There is disclosed a spinneret in which a plate is provided and a supply source of another component liquid is communicated with a spinning hole. However, in order to open a plurality of guide holes for one spinning hole, the guide holes are communicated with each other. To avoid this, it is necessary to make a large gap between the spinning holes, and the structure of the spinneret becomes complicated in order to measure the porosity of the spinning holes per unit area. As a result, the number of layers was limited and productivity was poor.
【０００６】 さらに、特公昭60-28921号公報には、極細繊維を効率よく生産するための紡糸 口金が開示されているが、この口金では２成分のポリマーが合流された後、直接 吐出孔へ誘導されるため２成分が混合したり、分割された片側成分が連結し、割 繊の方法によっては十分に分割しないという欠点を有していた。Further, Japanese Patent Publication No. Sho 60-28921 discloses a spinneret for efficiently producing ultrafine fibers. In this spinneret, a two-component polymer is merged and then directly discharged into a discharge hole. Since it is induced, the two components are mixed and the divided one-sided components are connected, and there is a drawback that they are not sufficiently divided depending on the splitting method.
【０００７】[0007]
本考案は、上記したような従来の複合紡糸口金の有する欠点を解消し、後工程 で容易にフィブリル化しやすい極細繊維を、効率よく得ることが可能な複合紡糸 口金を提供することを技術的な課題とするものである。 The present invention eliminates the drawbacks of the conventional composite spinneret as described above, and provides a composite spinneret capable of efficiently obtaining ultrafine fibers that are easily fibrillated in a subsequent step. This is an issue.
【０００８】[0008]
本考案者らは、上記の課題を解決するために鋭意研究した結果、本考案に到達 した。 すなわち、本考案は、２種の異なる紡糸成分液Ａ、Ｂを多層形に複合紡糸する ための紡糸口金において、上部にＢ成分用の吐出誘導孔を有し、下部に複合流の 誘導孔と吐出孔からなる紡糸孔を有する下口金板と、この紡糸孔に対してＡ成分 用の有底のキャピラリー及びＢ成分用案内孔を設けた上口金板とからなり、キャ ピラリーを複合流となる他のＢ成分用の吐出誘導孔の内壁に密着挿入し、キャピ ラリーの外周部にＢ成分を供給する通路となる切り欠きを設け、さらにキャピラ リーよりＡ成分を誘導孔側に供給するためのキャピラリー吐出孔をＢ成分供給用 の切り欠きと切り欠きの間に設け、キャピラリーの先端と複合流の吐出孔との間 に、切り欠きとキャピラリーからの成分が合流する平面通路を設けた口金であっ て、かつ、キャピラリーの平面通路の長さＬ（ｍｍ）及びキャピラリー外径Ｘと 下口金板の誘導孔の直径Ｙの関係が下記式、を満足することを特徴とする多 層型複合繊維用紡糸口金を要旨とするものである。 ０＜Ｌ＜１ Ｘ≧２Ｙ The present inventors have arrived at the present invention as a result of intensive research to solve the above problems. That is, the present invention is a spinneret for composite spinning of two or more different spinning component liquids A and B in a multi-layered manner, and has a discharge guide hole for component B in the upper part and a composite flow guide hole in the lower part. It consists of a lower-end metal plate having a spinning hole consisting of a discharge hole and a bottomed capillary plate for component A and a guide hole for component B for this spinning hole. It is closely inserted into the inner wall of the discharge guide hole for the other B component, and a notch is provided on the outer peripheral portion of the capillary to serve as a passage for supplying the B component, and further the A component is supplied from the capillary to the guide hole side. A capillary discharge hole is provided between the notches for supplying the B component, and a flat passage is provided between the tip of the capillary and the discharge hole of the composite flow to provide a flat passage through which the components from the capillary merge. Yes, and The relationship between the length L (mm) of the flat passage of the rally and the outer diameter X of the capillary and the diameter Y of the guide hole of the lower die plate satisfies the following formula: It is what 0 <L <1 X ≧ 2Y
【０００９】 以下、本考案を図面により詳細に説明する。 図１は、本考案の紡糸口金の一実施態様を示す断面図（キャピラリーは切断せ ず）であり、図２は図１のＡ１−Ａ２断面図、図３は図１のＢ１−Ｂ２断面図で ある。また、図４は、図１の紡糸口金を使用して得られる複合繊維の一実施態様 を示す断面図である。 １は下口金板であり、上部にＢ成分用の吐出誘導孔６が設けてあり、吐出誘導 孔６の下部は先端が複合流の吐出孔３となった誘導孔２になっている。４は上口 金板であり、Ａ成分用のキャピラリー誘導孔８とキャピラリー吐出孔９を有する 有底のキャピラリー５と、間隙12を介して吐出誘導孔６と連通する案内孔11を有 しており、キャピラリー５は下口金板１のＢ成分用の吐出誘導孔６の内壁に密着 挿入されている。キャピラリー５の外周部には、図２に示すようにＢ成分を供給 する通路となる切り欠き７が設けられており、切り欠き７はＢ成分を形成する個 数と同数設けてある。Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the spinneret of the present invention (capillary is not cut), FIG. 2 is an A1-A2 sectional view of FIG. 1, and FIG. 3 is a B1-B2 sectional view of FIG. Is. FIG. 4 is a cross-sectional view showing one embodiment of the conjugate fiber obtained by using the spinneret of FIG. Reference numeral 1 denotes a lower-end metal plate, and a discharge guide hole 6 for the B component is provided on the upper portion thereof, and a lower portion of the discharge guide hole 6 is a guide hole 2 having a composite flow discharge hole 3 at its tip. Reference numeral 4 denotes an upper-portion metal plate, which has a capillary guide hole 8 for component A and a capillary discharge hole 9 and a bottomed capillary 5 and a guide hole 11 communicating with the discharge guide hole 6 through a gap 12. The capillary 5 is closely inserted into the inner wall of the discharge guide hole 6 for the B component of the lower metal plate 1. As shown in FIG. 2, notches 7 serving as a passage for supplying the B component are provided on the outer peripheral portion of the capillary 5, and the notches 7 are provided in the same number as the B components.
【００１０】 切り欠き７は、実用上４〜12個設けることが好ましく、切り欠き７の断面形状 は三角形、四角形あるいは半円形等のいずれでもよく、特に限定されるものでは ない。It is preferable to provide 4 to 12 notches 7 for practical purposes, and the cross-sectional shape of the notches 7 may be any of a triangle, a quadrangle, and a semicircle, and is not particularly limited.
【００１１】 キャピラリー５の中心部に設けたＡ成分用のキャピラリー誘導孔８の先端部に は、図３に示すように、キャピラリー吐出孔９が切り欠き７と切り欠き７の間に 設けてある。 キャピラリー吐出孔９は、直径0.15〜0.4 ｍｍの円筒型のものが好ましい。ま た、キャピラリー５の先端と下口金板１の誘導孔２との間には、切り欠き７とキ ャピラリー吐出孔９から流れてきた成分を合流させるための平面通路10が設けて ある。As shown in FIG. 3, a capillary discharge hole 9 is provided between the notch 7 and the notch 7 at the tip of the capillary guide hole 8 for the component A provided at the center of the capillary 5. . The capillary discharge hole 9 is preferably a cylindrical type having a diameter of 0.15 to 0.4 mm. A flat passage 10 is provided between the tip of the capillary 5 and the guide hole 2 of the lower metal plate 1 so as to join the components flowing from the notch 7 and the capillary discharge hole 9.
【００１２】 平面通路10の長さＬ、すなわち下口金板１の誘導孔２の上部とキャピラリー５ の先端との間隙は１ｍｍ未満とする必要があり、複合流が誘導孔２に良好に流れ るためには、0.3 〜0.8 ｍｍとすることが好ましい。この長さＬが１ｍｍ以上で あると、Ｂ成分がＡ成分を覆う形となり、後加工での分割性が悪い糸条となるの で好ましくない。The length L of the flat passage 10, that is, the gap between the upper portion of the guide hole 2 of the lower metal plate 1 and the tip of the capillary 5 needs to be less than 1 mm, so that the composite flow satisfactorily flows into the guide hole 2. Therefore, it is preferable that the thickness is 0.3 to 0.8 mm. When the length L is 1 mm or more, the B component becomes a shape that covers the A component, and a yarn having poor splittability in post-processing is not preferable.
【００１３】 キャピラリー５は、上口金板から先端までの長さが５〜30ｍｍ、外径が2.5 〜 ５ｍｍ、内径が１〜３ｍｍのものが一般的に使用される。The capillary 5 generally has a length from the upper metal plate to the tip of 5 to 30 mm, an outer diameter of 2.5 to 5 mm, and an inner diameter of 1 to 3 mm.
【００１４】 キャピラリー５の外径Ｘと下口金板１の誘導孔２の内径Ｙとの関係はＸ≧２Ｙ とする必要がある。 キャピラリー５の外径Ｘが誘導孔２の内径Ｙの２倍未満であると、Ｂ成分がＡ 成分を覆う形となり、後加工での分割性が悪い糸条となるので好ましくない。The relationship between the outer diameter X of the capillary 5 and the inner diameter Y of the guide hole 2 of the lower mouth plate 1 needs to be X ≧ 2Y. If the outer diameter X of the capillary 5 is less than twice the inner diameter Y of the guide hole 2, the B component will cover the A component, resulting in a yarn with poor splittability in post-processing, which is not preferable.
【００１５】 本考案の多層型複合繊維用紡糸口金を用いて複合繊維を紡糸する際には、まず 、Ａ成分を有底のキャピラリー５の上端から導入する。導入されたＡ成分は、キ ャピラリー誘導孔８を通過し、キャピラリー誘導孔８の先端からキャピラリー吐 出孔９を通って、定量的かつ均一に平面通路10に分配される。 一方、Ｂ成分を上口金板４の案内孔11及びそれに連通した間隙12から吐出誘導 孔６に導入する。導入されたＢ成分は、キャピラリー５の切り欠き７により定量 的かつ均一に平面通路10に分配される。 Ａ、Ｂ両成分が交互に配置された複合流は平面通路10を通過し、複合流の誘導 孔２、吐出孔３を経て押し出され、図４に示したような断面をもつ多層型の複合 繊維が得られる。When spinning a composite fiber using the spinneret for a multilayer type composite fiber of the present invention, first, the component A is introduced from the upper end of the bottomed capillary 5. The introduced component A passes through the capillary guide hole 8, passes through the capillary discharge hole 9 from the tip of the capillary guide hole 8, and is quantitatively and uniformly distributed to the plane passage 10. On the other hand, the B component is introduced into the discharge guide hole 6 from the guide hole 11 of the upper mouth plate 4 and the gap 12 communicating with the guide hole 11. The introduced B component is quantitatively and uniformly distributed to the plane passage 10 by the notch 7 of the capillary 5. The composite flow in which both the A and B components are alternately arranged passes through the flat passage 10, is extruded through the composite flow guide hole 2 and the discharge hole 3, and has a cross-section as shown in FIG. Fibers are obtained.
【００１６】 Ａ、Ｂ成分としては、特に限定されるものではないが、後工程で容易にフィブ リル化するように、互いに相溶性のないポリマーの組合せとすることが好ましい 。The components A and B are not particularly limited, but it is preferable to use a combination of polymers that are incompatible with each other so that they are easily fibrylated in the subsequent step.
【００１７】 本考案において、下口金板１の吐出孔３は円形のみでなく、スリット状とする ことも可能で、中空多層形複合繊維を得ることもできる。In the present invention, the discharge hole 3 of the lower metal plate 1 can be not only circular but also slit-shaped, and a hollow multi-layered composite fiber can be obtained.
【００１８】 本考案においては、上記したように、キャピラリー吐出孔９を切り欠き７と切 り欠き７の間に設けるとともに、切り欠き７とキャピラリー５からの２種の成分 が合流する長さ１ｍｍ未満の平面通路10を設け、かつ、キャピラリー５の外径Ｘ を複合流の誘導孔２の直径Ｙの２倍以上とすることによって、複合流が平面通路 10を２種の成分が混合することなく流れるので、均斉度が優れた多層型複合繊維 を得ることができる。In the present invention, as described above, the capillary discharge hole 9 is provided between the notch 7 and the notch 7, and the length of 1 mm at which the two components from the notch 7 and the capillary 5 join together. By providing the flat passage 10 of less than 2 and making the outer diameter X 1 of the capillary 5 at least twice the diameter Y of the guide hole 2 of the composite flow, the composite flow mixes the flat passage 10 with two kinds of components. Since it flows without flowing, it is possible to obtain a multi-layer type composite fiber having excellent uniformity.
【００１９】[0019]
次に、本考案を実施例によって具体的に説明する。 Next, the present invention will be specifically described with reference to examples.
【００２０】 実施例１ 口金板の直径100 、90、80ｍｍの円周上に、各々62、56、50孔の紡糸孔を設け た。キャピラリーの寸法は外径3.5 ｍｍ、長さ20ｍｍとし、キャピラリーの先端 部と下口金板の平面通路との長さＬは0.5 ｍｍとした。キャピラリーの外周には 、幅0.5 ｍｍ、深さ0.25ｍｍ、先端からの長さ６ｍｍの三角形の切り欠きを８個 所に設けた。キャピラリー誘導孔は直径2.5 ｍｍ、キャピラリー吐出孔は直径0. 25ｍｍとし、また、下口金板の複合流の誘導孔は直径1.5 ｍｍ、吐出孔は直径0. 5 ｍｍとした。Example 1 Spinning holes of 62, 56 and 50 holes were provided on the circumference of a spinneret plate having a diameter of 100, 90 and 80 mm, respectively. The dimensions of the capillary were 3.5 mm in outer diameter and 20 mm in length, and the length L between the tip of the capillary and the flat passage of the lower plate was 0.5 mm. Eight triangular notches with a width of 0.5 mm, a depth of 0.25 mm, and a length of 6 mm from the tip were provided on the outer periphery of the capillary. The diameter of the capillary guide hole was 2.5 mm, the diameter of the capillary discharge hole was 0.25 mm, and the diameter of the composite flow guide hole of the lower plate was 1.5 mm and the diameter of the discharge hole was 0.5 mm.
【００２１】 Ａ成分にユニチカ社製ナイロン樹脂Ａ1030ＢＲＦを、Ｂ成分に極限粘度（フェ ノールと四塩化エタンとの等重量混合溶媒を用いて20℃で測定した。）が0.67の ポリエチレンテレフタレートを用い、両成分を溶融計量して上記の紡糸口金を装 着した溶融紡糸装置に供給した。吐出量をＡ、Ｂ成分各々56ｇ／分として紡出し 、冷却固化後、1000ｍ／分の速度で巻取った。 吐出状態は良好で、図４に示すような均斉度の優れた断面を持つ、多層型複合 繊維が得られた。The component A was nylon resin A1030BRF manufactured by Unitika Ltd., and the component B was polyethylene terephthalate having an intrinsic viscosity (measured at 20 ° C. using an equal weight mixed solvent of phenol and ethane tetrachloride) of 0.67. Both components were melt-measured and supplied to the melt-spinning apparatus equipped with the above spinneret. The discharged amount of each of the components A and B was 56 g / min, and the mixture was spun out, cooled and solidified, and then wound at a speed of 1000 m / min. A discharge state was good, and a multi-layered composite fiber having a cross section with excellent uniformity as shown in Fig. 4 was obtained.
【００２２】 得られた未延伸糸を集束し、延伸温度70℃、延伸倍率2.9 倍で延伸し、10万デ ニールの糸束を得た。この糸束に捲縮を付与し、乾燥した後、2.5 デニール、51 ｍｍの短繊維にカットした。この短繊維を用いて不織布を製造するために、ロー ラカードで開繊し、目付60ｇ／ｍ2 のウェブを形成した。次に、このウェブをネ ットコンベアー上に供給し、高圧液体噴射装置で圧力100 ｋｇ／ｃｍ2 の水を噴 射し、分割化と絡合化を行った。 得られた不織布は、柔軟な風合いを有しており、表面を走査型電子顕微鏡で観 察すると、良好に分割した極細繊維が観察された。The obtained undrawn yarn was bundled and drawn at a drawing temperature of 70 ° C. and a draw ratio of 2.9 times to obtain a yarn bundle of 100,000 denier. The yarn bundle was crimped, dried, and then cut into short fibers of 2.5 denier and 51 mm. In order to manufacture a nonwoven fabric using the short fibers, the fibers were opened with a roller card to form a web having a basis weight of 60 g / m 2 . Next, this web was supplied onto a net conveyor, and water having a pressure of 100 kg / cm 2 was sprayed by a high-pressure liquid spraying device to perform division and entanglement. The obtained non-woven fabric had a soft texture, and when the surface was observed with a scanning electron microscope, finely divided fine fibers were observed.
【００２３】[0023]
本考案は、簡単な構造で多孔化が可能な多層型複合繊維用紡糸口金であり、こ の紡糸口金を使用すれば、均斉度が優れ、容易にフィブリル化して極細繊維にな りやすい、多層型複合繊維を生産性よく得ることが可能となる。 The present invention is a spinneret for multi-layered composite fibers, which has a simple structure and can be made porous. By using this spinneret, the uniformity is excellent and it is easy to fibrillate into ultrafine fibers. It is possible to obtain the type composite fiber with high productivity.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の多層型複合繊維用紡糸口金の一実施態
様を示す断面図（キャピラリーは切断せず）である。FIG. 1 is a cross-sectional view showing an embodiment of the spinneret for multilayer composite fibers of the present invention (capillaries are not cut).
【図２】図１のＡ１−Ａ２方向の断面図である。FIG. 2 is a sectional view taken along the line A1-A2 of FIG.
【図３】図１のＢ１−Ｂ２方向の断面図である。3 is a sectional view taken along the line B1-B2 of FIG.
【図４】本考案の多層型複合繊維用紡糸口金を使用して
得られる多層型複合繊維の一実施態様を示す断面図であ
る。FIG. 4 is a cross-sectional view showing one embodiment of a multi-layer composite fiber obtained by using the spinneret for multi-layer composite fiber of the present invention.
１ 下口金板 ２ 誘導孔 ３ 吐出孔 ４ 上口金板 ５ キャピラリー ６ 吐出誘導孔 ７ 切り欠き ８ キャピラリー誘導孔 ９ キャピラリー吐出孔 10 平面通路 11 案内孔 12 間隙 1 Lower Mouth Plate 2 Guide Hole 3 Discharge Hole 4 Upper Mouth Plate 5 Capillary 6 Discharge Guide Hole 7 Notch 8 Capillary Guide Hole 9 Capillary Discharge Hole 10 Plane Passage 11 Guide Hole 12 Gap
Claims (1)
に複合紡糸するための紡糸口金において、上部にＢ成分
用の吐出誘導孔を有し、下部に複合流の誘導孔と吐出孔
からなる紡糸孔を有する下口金板と、この紡糸孔に対し
てＡ成分用の有底のキャピラリー及びＢ成分用案内孔を
設けた上口金板とからなり、キャピラリーを複合流とな
る他のＢ成分用の吐出誘導孔の内壁に密着挿入し、キャ
ピラリーの外周部にＢ成分を供給する通路となる切り欠
きを設け、さらにキャピラリーよりＡ成分を誘導孔側に
供給するためのキャピラリー吐出孔をＢ成分供給用の切
り欠きと切り欠きの間に設け、キャピラリーの先端と複
合流の吐出孔との間に、切り欠きとキャピラリーからの
成分が合流する平面通路を設けた口金であって、かつ、
キャピラリーの平面通路の長さＬ（ｍｍ）及びキャピラ
リー外径Ｘと下口金板の誘導孔の直径Ｙの関係が下記式
、を満足することを特徴とする多層型複合繊維用紡
糸口金。 ０＜Ｌ＜１ Ｘ≧２Ｙ 1. A spinneret for composite spinning of two different spinning component liquids A and B in a multi-layer form, which has a discharge guide hole for component B in the upper part and a composite flow guide hole and discharge in the lower part. A lower-end metal plate having a spinning hole composed of holes and an upper-end metal plate having a bottomed capillary for the A component and a guide hole for the B component provided in the spinning hole. It is tightly inserted into the inner wall of the discharge guide hole for the B component, a notch is provided on the outer peripheral portion of the capillary to serve as a passage for supplying the B component, and a capillary discharge hole for supplying the A component from the capillary to the guide hole side is provided. A mouthpiece provided between the notches for supplying the B component and having a flat passage between the tip of the capillary and the discharge hole of the composite flow where the components from the notches and the capillary merge. ,
A spinneret for multi-layer composite fibers, wherein the relationship between the length L (mm) of the plane passage of the capillary and the outer diameter X of the capillary and the diameter Y of the guide hole of the lower die plate satisfies the following formula: 0 <L <1 X ≧ 2Y
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993004366U JP2590083Y2 (en) | 1993-01-19 | 1993-01-19 | Spinneret for multilayer composite fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993004366U JP2590083Y2 (en) | 1993-01-19 | 1993-01-19 | Spinneret for multilayer composite fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0659473U true JPH0659473U (en) | 1994-08-19 |
| JP2590083Y2 JP2590083Y2 (en) | 1999-02-10 |
Family
ID=11582382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993004366U Expired - Fee Related JP2590083Y2 (en) | 1993-01-19 | 1993-01-19 | Spinneret for multilayer composite fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2590083Y2 (en) |
-
1993
- 1993-01-19 JP JP1993004366U patent/JP2590083Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2590083Y2 (en) | 1999-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4350006A (en) | Synthetic filaments and the like | |
| US6838402B2 (en) | Splittable multicomponent elastomeric fibers | |
| US8668854B2 (en) | Process and apparatus for producing nanofibers using a two phase flow nozzle | |
| JP4011584B2 (en) | Method for producing continuous filament made of nanofiber | |
| JP4790954B2 (en) | Core-sheath composite type conductive fiber | |
| JP5272229B2 (en) | Split type composite fiber, aggregate thereof, and fiber molded body using the split type composite fiber | |
| WO2003097221A1 (en) | Hollow fiber membrane having supporting material for reinforcement, preparation thereof and spinneret for preparing the same | |
| KR20060130193A (en) | Composite fabric of island-in-sea type and process for producing the same | |
| JP5337599B2 (en) | Battery separator, battery and split type composite fiber | |
| KR102304596B1 (en) | High and low molecular weight microfibers and TPF microfibers | |
| JPH0659473U (en) | Spinneret for multi-layer composite fiber | |
| JP3741886B2 (en) | Ultrafine fiber generation possible fiber, ultrafine fiber generated from this, and fiber sheet using this ultrafine fiber | |
| JP3546635B2 (en) | Spinneret and spinneret for spinning core-sheath composite fiber | |
| JPH07216709A (en) | Method for spinning and die | |
| JP3476259B2 (en) | Sea-island fiber spinneret | |
| JPH02169723A (en) | Thermally splitting type conjugate fiber and nonwoven fabric thereof | |
| JP2002363828A (en) | Side by side conjugated fiber and method of producing the same | |
| JPH0244921B2 (en) | ||
| JP2581201B2 (en) | Long-fiber nonwoven fabric and method for producing the same | |
| CN213977978U (en) | Hollow fiber based on melt spinning method and spinneret plate thereof | |
| JP4468025B2 (en) | Split composite fiber and polyamide fiber structure | |
| JPH1112844A (en) | Spinneret device for spinning core-sheath conjugated hollow fiber | |
| KR20050107075A (en) | A process of preparing hollow nano fiber | |
| JP3047322U (en) | Apparatus for applying fluid to spun filament yarn | |
| JP2000248418A (en) | Nozzle pack for spinning and production of cellulose acetate fiber yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |