JPH07126033A - Orifice plate and glass fiber of noncircular cross section - Google Patents
Orifice plate and glass fiber of noncircular cross sectionInfo
- Publication number
- JPH07126033A JPH07126033A JP6234488A JP23448894A JPH07126033A JP H07126033 A JPH07126033 A JP H07126033A JP 6234488 A JP6234488 A JP 6234488A JP 23448894 A JP23448894 A JP 23448894A JP H07126033 A JPH07126033 A JP H07126033A
- Authority
- JP
- Japan
- Prior art keywords
- section
- glass fiber
- cross
- orifice plate
- orifice
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/075—Manufacture of non-optical fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. undulated fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
- C03B37/083—Nozzles; Bushing nozzle plates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Reinforced Plastic Materials (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は非円形断面を有するガラ
ス繊維を収率よく製造することが出来るオリフィスプレ
ート及びオリフィスプレートにより紡糸することの出来
る非円形断面ガラス繊維に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an orifice plate capable of producing a glass fiber having a non-circular cross section with a high yield and a glass fiber having a non-circular cross section which can be spun by the orifice plate.
【０００２】[0002]
【従来の技術】ブッシングに供給された溶融ガラスはオ
リフィスプレートの複数の各対のオリフィスから紡出さ
れ、次いで互いに接合し且つ冷風吹出装置からの冷風又
は冷却フインで急冷、固化され、断面がまゆの形状をし
たフィラメントとなる。多数のフィラメントは集束剤を
塗布された後、集束ローラーでストランドに集束され、
巻取装置の巻取管上に巻取られる。この途中において、
ストランドが集束剤塗布ローラーやガイド上を走行する
際、各フィラメントが扁平に倒れて重なり合い、従来よ
りも扁平なストランドとなる。以上の方法で、断面がま
ゆの形状をしたガラス繊維を集合した扁平なストランド
が製造されることが特開昭６１−２１９７３４に開示さ
れている。2. Description of the Prior Art Molten glass supplied to a bushing is spun out from a plurality of pairs of orifices in an orifice plate, then spliced to each other and rapidly cooled and solidified by cold air or cooling fins from a cold air blowing device to have a brow section. It becomes a filament in the shape of. A large number of filaments are coated with a sizing agent and then bundled into strands by a sizing roller,
It is wound on the winding tube of the winding device. In the middle of this,
When the strands run on the sizing agent application roller or guide, the filaments are flattened and overlapped with each other, resulting in a flatter strand than in the past. It is disclosed in Japanese Patent Application Laid-Open No. 61-219734 that a flat strand in which glass fibers having a cocoon-shaped cross section are assembled is produced by the above method.
【０００３】特開平３−２２０２６０において非円形断
面ガラス繊維が長円形、まゆ形、楕円形、矩形、スリッ
ト状等の孔形状を有するオリフィスを用いて紡糸される
ことが開示されている。Japanese Patent Laid-Open No. 3-220260 discloses that glass fibers having a non-circular cross section are spun using an orifice having a hole shape such as an oval shape, an eyebrow shape, an elliptical shape, a rectangular shape, and a slit shape.
【０００４】[0004]
【発明が解決しようとする課題】しかし特開昭６１−２
１９７３４の方法には問題がある。例えばオリフィスか
ら紡出される溶融ガラスは一般に粘度が低く、表面張力
が大きいため、直ちに断面が円形になる傾向が強い。こ
の為一対のノズル孔から紡出した溶融ガラスを接合し、
断面をまゆの形状としても、その溶融ガラスが固化する
までに、表面張力により断面が長円形、楕円形に変形
し、ついには円形になることがある。この傾向は一対の
ノズル孔の間隔が短い程強く、従って一対のノズル孔の
間隔が接近し過ぎると、フィラメントの断面形状は円形
となってしまう。逆に離し過ぎると、各ノズル孔からの
溶融ガラスが接合せず、２本の円形断面のフィラメント
となってしまう。従って、複数の各対のオリフィスの間
隔、オリフィスの凹部の角度等寸法が厳しく限定される
ために、得られる繊維断面の変形比（最長径／最短径）
は比較的小さく、他の多角形等の繊維断面も限定され
る。又品質の安定に問題がある。However, Japanese Unexamined Patent Application Publication No. 61-2
The 19734 method is problematic. For example, molten glass spun from an orifice generally has a low viscosity and a large surface tension, and therefore tends to immediately have a circular cross section. Therefore, join the molten glass spun from a pair of nozzle holes,
Even if the cross section has a cocoon shape, the cross section may be deformed into an oval or an ellipse due to surface tension before the molten glass is solidified, and finally becomes a circle. This tendency is stronger as the distance between the pair of nozzle holes is shorter. Therefore, if the distance between the pair of nozzle holes is too close, the cross-sectional shape of the filament becomes circular. On the other hand, if they are separated too much, the molten glass from each nozzle hole will not be joined and two filaments with a circular cross section will result. Therefore, the deformation ratio (longest diameter / shortest diameter) of the fiber cross-section obtained is strictly limited because the distance between the orifices of each pair and the angle and other dimensions of the recesses of the orifices are strictly limited.
Is relatively small and the fiber cross section such as other polygons is also limited. Moreover, there is a problem in quality stability.
【０００５】又特開平３−２２０２６０の方法は非円形
断面を得ようとすると、オリフィスから流出した溶融ガ
ラスのオリフィスプレート表面への濡れ広がりが起こ
り、その結果、フィラメントの切断等の問題がある。Further, in the method of Japanese Patent Laid-Open No. 3-220260, when an attempt is made to obtain a non-circular cross section, the molten glass flowing out from the orifice wets and spreads on the surface of the orifice plate, resulting in a problem such as filament breakage.
【０００６】ガラスフレーク、ガラス繊維、ガラスフレ
ーク及びガラス繊維との混合物が、補強材として用いら
れた成型品の曲げ強度、曲げ弾性率、アイゾッド衝撃強
度等の機械的物性の向上、樹脂の流れ方向の成型収縮率
と樹脂の流れに直角な方向の成型収縮率をほぼ等しくし
（収縮率の異方性が少ない）、且つ収縮率を低下させる
等の寸法安定性の向上、熱変形温度の向上、成型品の表
面の凹凸、ざらつき、補強材の浮き等の無い外観の良さ
等を目的として、熱可塑性樹脂等の補強材として広く用
いられている。Glass flakes, glass fibers, glass flakes and a mixture of glass fibers are used as a reinforcing material to improve mechanical properties such as flexural strength, flexural modulus and Izod impact strength of a molded product, and resin flow direction. Approximately equals the mold shrinkage of the mold and the mold shrinkage in the direction perpendicular to the resin flow (there is little anisotropy of the shrinkage), and also the shrinkage is improved, and the dimensional stability is improved and the heat distortion temperature is improved. It is widely used as a reinforcing material such as a thermoplastic resin for the purpose of improving the appearance of the molded product without unevenness, roughness and floating of the reinforcing material.
【０００７】しかしながら、ガラスフレークを補強材と
して用いた場合、成型品は、収縮率の異方性が少なく、
線膨脹係数の異方性も少ないためにそりがなく、成型品
の表面の凹凸、ざらつき、補強材の浮きが少ないために
外観が良い等の効果があるが、曲げ強度、曲げ弾性率、
アイゾッド衝撃強度等の機械的物性が十分でなく、収縮
率及び線膨脹係数の絶対値についても十分でない等の問
題がある。However, when glass flakes are used as the reinforcing material, the molded product has a small anisotropy of shrinkage,
Since there is little anisotropy in the linear expansion coefficient, there is no warpage, and there are effects such as unevenness on the surface of the molded product, roughness, and good appearance because there is little lifting of the reinforcing material, but bending strength, bending elastic modulus,
There are problems that mechanical properties such as Izod impact strength are not sufficient, and the absolute values of shrinkage and linear expansion coefficient are not sufficient.
【０００８】ガラス繊維を補強材として用いた場合、ガ
ラス繊維の充填量が増すにつれて、曲げ強度、曲げ弾性
率、アイゾッド衝撃強度等の機械的物性、収縮率が向上
する反面、材料の異方性が大きくなる。例えば、寸法安
定性について言えば、線膨脹係数・成型収縮率ともに成
型時の樹脂の流動方向については、小さくできるが、流
動方向に対し直角の方向については、ガラス繊維の充填
量を増しても小さくならないため、実際の製品の寸法安
定性としては不充分であり、ゲート位置等の金型設計及
び製品設計上、大きな制約を受ける。When glass fiber is used as a reinforcing material, mechanical properties such as bending strength, bending elastic modulus, and Izod impact strength, and shrinkage ratio are improved as the filling amount of glass fiber is increased, but the anisotropy of the material is increased. Grows larger. For example, in terms of dimensional stability, both the linear expansion coefficient and the molding shrinkage can be reduced in the resin flow direction during molding, but in the direction perpendicular to the flow direction even if the glass fiber filling amount is increased. Since it does not become small, it is not sufficient as the dimensional stability of the actual product, and it is greatly restricted by the mold design such as the gate position and the product design.
【０００９】材料の異方性が極めて少なく、機械的物性
に極めて優れた補強材、即ち、事務機器、特に複写機、
ファクシミリ用として機械的物性（ボルト等の締め付
け。機械の重量を支える。振動しにくい。）が高く、外
観が良好で、特に線膨脹係数（環境温度による寸法変化
の少ないこと）・成型収縮率（設計寸法と成型品の寸法
との誤差を小さくし、成型品の寸法のバラツキを小さく
する）などの寸法安定性が流動方向・直角方向ともに極
めて優れた樹脂材料が得られる補強材はない。Reinforcing materials having extremely small anisotropy of materials and excellent mechanical properties, that is, office equipment, especially copying machines,
It has high mechanical properties (tightening bolts, etc., supports the weight of the machine, does not vibrate easily) and has a good appearance, especially for linear expansion coefficient (small dimensional change due to ambient temperature) and molding shrinkage rate (for facsimile). There is no reinforcing material that can obtain a resin material with extremely excellent dimensional stability in both the flow direction and right-angle direction, such as reducing the error between the design dimension and the dimension of the molded product and reducing the variation in the dimension of the molded product.
【００１０】[0010]
【課題を解決するための手段】上記問題を解決するため
に、本発明のオリフィスプレートは、底面に多数のオリ
フィスを有するオリフィスプレートにおいて、単数のオ
リフィス出口を囲み該オリフィスプレート底面より下方
に延びる凸状縁を設けた事を特徴とし、上記オリフィス
プレートによって形成された非円形断面ガラス繊維は、
ガラス繊維の横断面が、複数の直線と複数の曲線により
囲まれている事を特徴とする。In order to solve the above problems, an orifice plate according to the present invention is an orifice plate having a large number of orifices on its bottom surface. The orifice plate surrounds a single orifice outlet and extends downward from the bottom surface of the orifice plate. The non-circular cross-section glass fiber formed by the orifice plate is characterized in that
The cross section of the glass fiber is characterized by being surrounded by a plurality of straight lines and a plurality of curves.
【００１１】[0011]
【作用】液状流体、特に溶融ガラスのようにある程度の
粘性を有する流体は、表面平滑なオリフィスプレートの
オリフィスの場合、溶融ガラスはオリフィスからしみ出
して時間と共にオリフィスプレート下面に広がるが、チ
ップオリフィスのように流れを導く壁（チップ）があれ
ば溶融ガラスはチップを伝わって下方に流れるという性
質がある。即ち図３に示されるように単数の長方形のオ
リフィス２出口の周囲に凸状縁１を設けることで単数の
長方形のオリフィスから流れ出た溶融ガラスは凸状縁の
壁に沿って流れ、凸状縁の根元と先端の間で長方形断面
の原形ができる。つまり凸状縁を設けない場合に比べる
と、凸状縁の内壁からの流れがあるため、単数の異形断
面のオリフィスから異形断面の繊維が容易に得られる。When a liquid fluid, particularly a fluid having a certain viscosity such as molten glass, has an orifice plate having a smooth surface, the molten glass exudes from the orifice and spreads on the lower surface of the orifice plate with time. If there is a wall (chip) that guides the flow, the molten glass has a property of flowing down the chip along the chip. That is, as shown in FIG. 3, by providing the convex edge 1 around the outlet of the single rectangular orifice 2, the molten glass flowing out from the single rectangular orifice flows along the wall of the convex edge, A rectangular cross-section is formed between the root and the tip of the. That is, as compared with the case where the convex edge is not provided, since there is a flow from the inner wall of the convex edge, the fiber having the irregular cross section can be easily obtained from the single orifice having the irregular cross section.
【００１２】本発明の非円形断面ガラス繊維は、従来の
円形断面にくらべ、比表面積が大きいので、ガラス繊維
と樹脂との間の全接着力が大きく補強効果が向上する。
さらに、ガラス繊維が、マトリックス中で、例えば、ブ
ロックを並べて積むような相互配置を取り、補強材の充
填量の増大が可能となり、上述の全接着力の増大による
補強効果の向上と相俟って曲げ強度、曲げ弾性率、アイ
ゾッド衝撃強度等の機械的物性を著しく向上させる。
又、特に、扁平な断面形状を有するものについては、異
方性に関しては、ガラスフレークのような効果を示し、
成型品の収縮率の異方性が少なく、線膨脹係数の異方性
も少ないためにそりがなく、成型品の表面の凹凸、ざら
つき、補強材の浮きが少ないために外観が良い。Since the non-circular cross-section glass fiber of the present invention has a larger specific surface area than the conventional circular cross-section, the total adhesive force between the glass fiber and the resin is large and the reinforcing effect is improved.
Further, the glass fibers are arranged in a matrix such that the blocks are arranged side by side, and the filling amount of the reinforcing material can be increased, which is combined with the improvement of the reinforcing effect due to the increase in the total adhesive force described above. Mechanical properties such as flexural strength, flexural modulus, and Izod impact strength.
In addition, especially for those having a flat cross-sectional shape, with respect to anisotropy, it exhibits an effect similar to glass flakes,
Since the molded product has little anisotropy in shrinkage and little anisotropy in linear expansion coefficient, there is no warpage, and the appearance of the molded product is good because there is little unevenness, roughness, and floating of the reinforcing material.
【００１３】[0013]
【実施例】図１及び図５に於いて、ブッシング３に供給
された溶融ガラス９はオリフィスプレート４の単数の異
形断面のオリフィス２から紡出され、次いで凸状縁１の
根元と先端の間で非円形断面の原形ができ、且つ冷風吹
出装置８からの冷風で急冷、固化され、断面が非円形の
形状をしたフィラメント１０となる。多数のフィラメン
トは集束剤塗布ローラー５で集束剤を塗布された後、集
束ローラー６でストランド１１に集束され、巻取装置７
の巻取管１２上に巻取られる。以上の方法で、断面が非
円形の形状、特に断面がリボン状の形状をした変形比の
大きいガラス繊維を集合したストランドが製造される。
又凸状縁１のために非円形断面の原形ができるため、オ
リフィス２から出る溶融ガラス９からは安定した品質の
ストランドが得られる。1 and 5, a molten glass 9 supplied to a bushing 3 is spun from an orifice 2 having a single cross section of an orifice plate 4 and then between a root and a tip of a convex edge 1. Then, a non-circular cross-section is formed into an original shape, and the filament 10 is rapidly cooled and solidified by the cold air from the cold air blowing device 8 to have a non-circular cross-section. A large number of filaments are coated with a sizing agent by a sizing agent application roller 5, and then are bundled on a strand 11 by a sizing agent roller 6, and a winding device 7
It is wound on the take-up tube 12 of. By the above method, a strand having a non-circular cross section, in particular, a ribbon-like cross section and having a large deformation ratio and having a large deformation ratio is produced.
Further, since the convex edge 1 allows the original shape of the non-circular cross section, the molten glass 9 exiting from the orifice 2 can obtain a strand of stable quality.
【００１４】図１のＡ、Ｂ、Ｃ、及びＤは単数の異形断
面のオリフィス２出口の１部を囲みオリフィスプレート
４底面より下方に延びる複数の凸状縁１を設けたオリフ
ィスプレート４底面の一部を示す。1A, 1B, 1C and 1D show the bottom of the orifice plate 4 provided with a plurality of convex edges 1 surrounding a part of the outlet of the orifice 2 having a single irregular cross section and extending downward from the bottom of the orifice plate 4. Show some.
【００１５】図１のＡは長方形のオリフィス２出口の１
部を囲みオリフィスプレート４底面（図５のＡ）より下
方に延び長方形の短辺のオリフィス２出口を挟む一対の
四角形の板の凸状縁１を設けたオリフィスプレート４底
面の一部を示し、この一対の四角形の板の凸状縁１で挟
まれた長方形のオリフィス２より図４−Ａに示されるよ
うに一本の非円形の形状をした図５のＡのフィラメント
１０が得られる。従ってオリフィスプレート４底面には
この凸状縁１付オリフィス１５が多数配置されている。
図１のＡの凸状縁１は、図３に示されるごとく正方形で
あるが、凸状縁１の根元と先端の間で非円形断面の原形
ができ、安定した品質のフィラメント１０が得られるも
のであれば、いかなる形をも取りうることができる。凸
状縁１の位置は長方形の短辺のオリフィス２出口を挟む
ように、長方形の短辺と平行に一対に設けられている。
この位置においても、凸状縁１の根元と先端の間で非円
形断面の原形ができ、安定した品質のフィラメント１０
が得られるものであれば、いかなる位置をも取りうるこ
とができる。さらに、オリフィス２出口の全部を囲む凸
状縁１を設けることもできる。FIG. 1A shows a rectangular orifice 2 with an outlet 1
A part of the bottom surface of the orifice plate 4 provided with the convex edges 1 of a pair of quadrangular plates that surround the portion and extend below the bottom surface of the orifice plate 4 (A in FIG. 5) and sandwich the orifice 2 of the rectangular short side, From the rectangular orifice 2 sandwiched by the convex edges 1 of the pair of rectangular plates, one filament 10 of FIG. 5A having a non-circular shape is obtained as shown in FIG. 4-A. Therefore, a large number of the orifices 15 with the convex edge 1 are arranged on the bottom surface of the orifice plate 4.
The convex edge 1 of FIG. 1A is square as shown in FIG. 3, but a non-circular cross-section can be formed between the root and the tip of the convex edge 1 to obtain a filament 10 of stable quality. Any shape can be used. The convex edge 1 is provided in a pair in parallel with the short side of the rectangle so as to sandwich the orifice 2 outlet of the short side of the rectangle.
Even in this position, a non-circular cross-section original shape is formed between the root and the tip of the convex edge 1, and the filament 10 of stable quality is obtained.
It can take any position as long as Furthermore, it is also possible to provide a convex edge 1 which surrounds the entire orifice 2 outlet.
【００１６】凸状縁１の先端は、図３に示されるように
平坦である事が好ましく、凸状縁１の溶融ガラスに接触
する面は矩形である事が特に好ましい。凸状縁１の溶融
ガラスに接触する面の高さは、０．０１−５０．００ｍ
ｍが好ましく、特に好ましくは、０．１−１０．０ｍｍ
で，更に好ましくは，０．５−５．０ｍｍである。高さ
が０．０１ｍｍ以下の場合、凸状縁１の効果が小さく、
５０．００ｍｍ以上の場合は糸切れが発生することがあ
る。凸状縁１の溶融ガラスに接触する面の先端の幅は、
０．００５−４０．０００ｍｍが好ましく、特に好まし
くは、０．１−１０．０ｍｍで，更に好ましくは，０．
５−３．０ｍｍである。先端の幅が０．００５ｍｍ以下
の場合、凸状縁１の効果が小さく、４０．０００ｍｍ以
上の場合は糸切れが発生することがある。The tip of the convex edge 1 is preferably flat as shown in FIG. 3, and the surface of the convex edge 1 which comes into contact with the molten glass is particularly preferably rectangular. The height of the surface of the convex edge 1 in contact with the molten glass is 0.01-50.00 m.
m is preferable, and 0.1-10.0 mm is particularly preferable.
And more preferably 0.5-5.0 mm. When the height is 0.01 mm or less, the effect of the convex edge 1 is small,
If it is 50.00 mm or more, yarn breakage may occur. The width of the tip of the surface of the convex edge 1 that contacts the molten glass is
0.005-40.000 mm is preferable, 0.1-10.0 mm is particularly preferable, and 0.
It is 5-3.0 mm. When the width of the tip is 0.005 mm or less, the effect of the convex edge 1 is small, and when it is 40.000 mm or more, thread breakage may occur.
【００１７】図１のＢは、ほぼ正四角形のオリフィス２
出口の１部を囲みオリフィスプレート４底面（図５の
Ａ）より下方に延びほぼ正四角形のオリフィス２出口の
四つの角にそれぞれ凸状縁１を凸設したオリフィスプレ
ート４底面の一部を示し、この凸状縁１付ほぼ正四角形
のオリフィス１５より、図４−Ｂに示されるようにほぼ
正方形の一本の非円形の形状をした図５のＡのフィラメ
ント１０が得られる。FIG. 1B shows an orifice 2 having a substantially square shape.
A part of the bottom surface of the orifice plate 4 that surrounds a part of the outlet and extends downward from the bottom surface of the orifice plate 4 (A in FIG. 5) and has a convex edge 1 at each of the four corners of the orifice 2 at the outlet is shown. From the orifice 15 having a substantially square shape with the convex edge 1, the filament 10 of FIG. 5A having a substantially non-circular shape having a substantially square shape is obtained as shown in FIG. 4-B.
【００１８】図１には、長方形、ほぼ正四角形、ほぼ正
三角形、ほぼＹ字形のオリフィスの異形断面が示されて
いるが、その他に、例えば、扁平度の大きい楕円形、五
角形、Ｘ字形、Ｃ字形、Ｅ字形、Ｌ字形、Ｍ字形、Ｓ字
形、Ｔ字形、Ｖ字形、Ｚ字形等を例示でき、任意の異形
断面のオリフィスに適用可能である。FIG. 1 shows a modified cross section of a rectangular, substantially regular square, substantially regular triangle, or substantially Y-shaped orifice, but in addition, for example, an elliptical shape with a large flatness, a pentagon, an X-shape, The C-shape, E-shape, L-shape, M-shape, S-shape, T-shape, V-shape, Z-shape and the like can be exemplified, and the invention can be applied to an orifice having any irregular cross section.
【００１９】本発明によると、種々の断面形の非円形断
面ガラス繊維の製造が可能である。本発明の非円形断面
ガラス繊維の補強効果について、成型品の曲げ強度、曲
げ弾性率、アイゾッド衝撃強度等の機械的物性を著しく
向上させると同時に、成型品の収縮率、線膨脹係数等の
異方性が少ないためにそりがなく、表面の凹凸、ざらつ
き、補強材の浮きが少ないために外観が良いためには、
ガラス繊維の横断面が、複数の直線と複数の曲線により
囲まれている必要がある。成型品中のガラス繊維が、相
互にその横断の直線で接触し、例えば、ブロックを並べ
て積むような相互配置を取り、補強材の充填量の増大が
可能となるからである。好ましくは、ガラス繊維の横断
面が、全曲線の長さより大きい全直線の長さの線で囲ま
れていることである。さらに好ましくは、ガラス繊維の
横断面が、全曲線の長さの３倍以上の全直線の長さの線
で囲まれていることである。According to the invention, it is possible to produce non-circular cross-section glass fibers of various cross-sections. Regarding the reinforcing effect of the non-circular cross-section glass fiber of the present invention, mechanical properties such as flexural strength, flexural modulus and Izod impact strength of the molded product are remarkably improved, and at the same time, the molded product has different shrinkage ratio, linear expansion coefficient and the like. There is no warpage due to the lack of directionality, and there is less unevenness on the surface, roughness, and less floating of the reinforcing material so that the appearance is good,
The cross section of the glass fiber must be surrounded by straight lines and curved lines. This is because the glass fibers in the molded product come into contact with each other in a straight line across them, and for example, the mutual arrangement such that the blocks are stacked side by side is taken, and the filling amount of the reinforcing material can be increased. Preferably, the cross-section of the glass fiber is surrounded by a line of total straight length greater than the length of the total curve. More preferably, the cross section of the glass fiber is surrounded by a line having a total straight line length that is at least three times the total curve length.
【００２０】本発明の種々の断面形の非円形断面ガラス
繊維の内、図４のＡに示されるようなリボン状の断面形
の非円形断面ガラス繊維の補強効果について、成型品の
機械的物性を著しく向上させると同時に、そりがなく、
外観が良いためには、好ましくは、ガラス繊維の横断面
における最長径の短径に対する比が２．３以上であるこ
とである。さらに好ましくは、ガラス繊維の横断面にお
ける最長径の短径に対する比が５−１２であることであ
る。Among the non-circular cross-section glass fibers of various cross-sections according to the present invention, the mechanical properties of the molded product with respect to the reinforcing effect of the non-circular cross-section glass fiber of ribbon-like cross-section as shown in FIG. 4A. And at the same time there is no warpage,
In order to have a good appearance, the ratio of the longest diameter to the short diameter in the cross section of the glass fiber is preferably 2.3 or more. More preferably, the ratio of the longest diameter to the short diameter in the cross section of the glass fiber is 5-12.
【００２１】本発明の非円形断面ガラス繊維の太さにつ
いては任意であるが、横断面における短径が０．５−２
５ミクロン、横断面における最長径が０．６−３００ミ
クロンであることが好ましい。細すぎる場合、ガラス繊
維の紡糸が困難な場合があり、太すぎる場合、樹脂との
接触面積の減少等により補強材の補強効果が減少する場
合がある。The thickness of the non-circular cross-section glass fiber of the present invention is arbitrary, but the minor axis in the cross section is 0.5-2.
It is preferably 5 microns and the longest diameter in the cross section is 0.6-300 microns. If it is too thin, it may be difficult to spin the glass fiber, and if it is too thick, the reinforcing effect of the reinforcing material may be reduced due to a decrease in the contact area with the resin.
【００２２】ガラス繊維の組成は、溶融ガラスよりガラ
ス繊維化が可能な組成であればよく、好ましい組成とし
て、Ｅガラス組成、Ｃガラス組成、Ｓガラス組成、耐ア
ルカリガラス組成等をあげることができる。The composition of the glass fiber may be any composition as long as it can be made into glass fiber from molten glass, and preferable compositions include E glass composition, C glass composition, S glass composition and alkali resistant glass composition. .
【００２３】本発明の非円形断面ガラス繊維は、例え
ば、γーメタクリルオキシプロピルトリメトキシシラ
ン、γーグリシドキシプロピルトリメトキシシラン、γ
ーアミノプロピルトリエトキシシラン等のシランカップ
リング剤等で表面処理されていることが望ましく、ガラ
ス繊維重量の０．０１重量％以上とすることが好まし
い。さらに必要に応じて、脂肪酸アミド化合物、シリコ
ーンオイル等の潤滑剤、第４級アンモニウンム塩等の帯
電防止剤、エポキシ樹脂、ウレタン樹脂等の被膜形成能
を有する樹脂、被膜形成能を有する樹脂と熱安定剤、難
燃剤等を併用したもの等によって表面処理されたものを
用いることもできる。The non-circular cross-section glass fiber of the present invention is, for example, γ-methacryloxypropyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ
It is desirable that the surface treatment is performed with a silane coupling agent such as aminopropyltriethoxysilane, and it is preferably 0.01% by weight or more of the weight of the glass fiber. Further, if necessary, a fatty acid amide compound, a lubricant such as silicone oil, an antistatic agent such as a quaternary ammonium salt, a resin having a film forming ability such as an epoxy resin or a urethane resin, a resin having a film forming ability and a heat treatment. It is also possible to use a material surface-treated with a material such as a stabilizer and a flame retardant.
【００２４】本発明の非円形断面ガラス繊維は、熱可塑
性樹脂の補強材として好適である。特に、ナイロン、飽
和ポリエステル、ポリカーボネート等の補強材として好
適である。本発明のガラス繊維の上述の樹脂への好まし
い充填量は、５−７０重量％である。The non-circular cross-section glass fiber of the present invention is suitable as a reinforcing material for thermoplastic resins. In particular, it is suitable as a reinforcing material for nylon, saturated polyester, polycarbonate and the like. The preferable loading amount of the glass fiber of the present invention in the above-mentioned resin is 5-70% by weight.
【００２５】［実験例１］[Experimental Example 1]
【００１５】で説明した図１のＡのタイプで、オリフィ
ス２の横断面の長辺が３．０ｍｍ、短辺が１．２ｍｍ、
短辺と平行に高さ３．０ｍｍ、幅１．２ｍｍ、厚さ０．
６ｍｍの凸状縁１がオリフィス２出口を挟むように、一
対に凸設された凸状縁１付オリフィス１５を有し、この
凸状縁１付オリフィス１５が３００個配置されたオリフ
ィスプレート４を有するガラス繊維紡糸用ブッシング３
を用いて、Ｅガラス組成で、紡糸温度１２４０℃、紡糸
速度３０００ｍ／ｍｉｎで紡糸し、γーアミノプロピル
トリエトキシシランを主成分とする集束剤を０．３５重
量％付着させて表面処理し、図４のＡに概略示されるガ
ラス繊維の横断面が、全曲線の長さの３．３倍の全直線
の長さの線で囲まれ、横断面における最長径の短径に対
する比が６．１の非円形断面を有するガラス繊維を得
た。この条件で、約３時間の連続紡糸を行なったが、切
断は一度も見られなかった。In the type A shown in FIG. 1 described in section 1, the long side of the cross section of the orifice 2 is 3.0 mm, the short side is 1.2 mm,
The height is 3.0 mm, the width is 1.2 mm, and the thickness is 0.
A 6 mm convex edge 1 has a pair of convex edge 1-orifice 15 provided so as to sandwich the orifice 2 outlet, and an orifice plate 4 in which 300 convex edge 1-orifices 15 are arranged is used. Glass fiber spinning bushing 3
Using E, a spinning temperature of 1240 ° C. and a spinning speed of 3000 m / min were used for spinning, and 0.35% by weight of a sizing agent having γ-aminopropyltriethoxysilane as a main component was applied for surface treatment. The cross section of the glass fiber schematically shown in FIG. 4A is surrounded by a line having a total straight line length of 3.3 times the length of the entire curve, and the ratio of the longest diameter to the short diameter in the cross section is 6. A glass fiber having a non-circular cross section of 1 was obtained. Under these conditions, continuous spinning was carried out for about 3 hours, but no cutting was observed.
【００２６】［実験例２］[Experimental Example 2]
【００１７】で説明した図１のＢのタイプで、オリフィ
ス２の横断面の各辺が２．４ｍｍの正四角形のオリフィ
ス２出口の１部を囲みオリフィスプレート４底面（図５
のＡ）より下方に延び正四角形のオリフィス２出口の四
つの角に高さ２．０ｍｍ、幅１．２ｍｍ、厚さ０．６ｍ
ｍの凸状縁１がオリフィス２出口を挟むように、それぞ
れ凸状縁１を凸設した凸状縁１付オリフィス１５を有
し、この凸状縁１付オリフィス１５が３００個配置され
たオリフィスプレート４を有するガラス繊維紡糸用ブッ
シング３を用いて、Ｅガラス組成で、紡糸温度１２２０
℃、紡糸速度３０００ｍ／ｍｉｎで紡糸し、γーメタク
リルオキシプロピルトリメトキシシランを主成分とする
集束剤を０．４１重量％付着させて表面処理し、図４の
Ｂに概略示されるガラス繊維の横断面が、全曲線の長さ
の３．８倍の全直線の長さの線で囲まれた非円形断面を
有するガラス繊維を得た。得られたガラス繊維の断面は
ほぼ４角形でその角はほぼ円弧の形であった。この条件
で、約３時間の連続紡糸を行なったが、切断は一度も見
られなかった。In the type B shown in FIG. 1 described in 1., a part of the outlet of the orifice 2 of the square shape of each side of the orifice 2 is 2.4 mm, and each side of the orifice 2 surrounds a part of the outlet of the orifice plate 4 (see FIG. 5).
2.0 mm in height, width 1.2 mm, thickness 0.6 m at the four corners of the regular orifice 2 outlet extending downward from A)
An orifice 15 with convex edges 1 provided with convex edges 1 so that the convex edges 1 of m sandwich the outlet of the orifice 2, and 300 orifices 15 with the convex edges 1 are arranged. Using a glass fiber spinning bushing 3 having a plate 4, an E glass composition and a spinning temperature of 1220.
C., spinning speed 3000 m / min, 0.41% by weight of a sizing agent having .gamma.-methacryloxypropyltrimethoxysilane as a main component was adhered and surface-treated, and a glass fiber A glass fiber was obtained whose cross-section had a non-circular cross section surrounded by a line with a total length of 3.8 times the length of the whole curve. The cross section of the obtained glass fiber was substantially quadrangular, and the corners were substantially arc-shaped. Under these conditions, continuous spinning was carried out for about 3 hours, but no cutting was observed.
【００２７】［実験例３］図１のＣのタイプで、オリフ
ィス２の横断面の各辺が３．０ｍｍの正三角形のオリフ
ィス２出口の１部を囲みオリフィスプレート４底面（図
５のＡ）より下方に延び正三角形のオリフィス２出口の
各頂点に高さ２．０ｍｍ、幅１．５ｍｍ、厚さ０．５ｍ
ｍの凸状縁１がオリフィス２出口を挟むように、それぞ
れ凸状縁１を凸設した凸状縁１付オリフィス１５を有
し、この凸状縁１付オリフィス１５が３００個配置され
たオリフィスプレート４を有するガラス繊維紡糸用ブッ
シング３を用いて、Ｅガラス組成で、紡糸温度１２３０
℃、紡糸速度３０００ｍ／ｍｉｎで紡糸し、γーグリシ
ドキシプロピルトリメトキシシラン４重量部及びシリコ
ーンオイル１重量部の混合物を主成分とする集束剤を
０．２８重量％付着させて表面処理し、図４のＣに概略
示されるガラス繊維の横断面が、全曲線の長さの５．７
倍の全直線の長さの線で囲まれた非円形断面を有するガ
ラス繊維を得た。得られたガラス繊維の断面はほぼ３角
形でその角はほぼ円弧の形であった。この条件で、約３
時間の連続紡糸を行なったが、切断は一度も見られなか
った。[Experimental Example 3] In the type C shown in FIG. 1, a part of the outlet of an orifice 2 of a regular triangle having a cross section of the orifice 2 of 3.0 mm on each side is surrounded by a part of the orifice plate 4 bottom surface (A in FIG. 5). 2.0 mm in height, 1.5 mm in width, and 0.5 m in thickness at each vertex of the exit of the equilateral triangular orifice 2
An orifice 15 with convex edges 1 provided with convex edges 1 so that the convex edges 1 of m sandwich the outlet of the orifice 2, and 300 orifices 15 with the convex edges 1 are arranged. Using a glass fiber spinning bushing 3 having a plate 4, an E glass composition and a spinning temperature of 1230.
C., spinning speed 3000 m / min, spinning was performed, and 0.28% by weight of a sizing agent containing a mixture of 4 parts by weight of .gamma.-glycidoxypropyltrimethoxysilane and 1 part by weight of silicone oil as a main component was applied to the surface treatment. , The cross section of the glass fiber schematically shown in FIG. 4C has a total curve length of 5.7.
A glass fiber was obtained having a non-circular cross section surrounded by a line of double the total straight length. The cross section of the obtained glass fiber was substantially triangular, and the angle was substantially arcuate. Under this condition, about 3
After continuous spinning for a period of time, no cutting was seen.
【００２８】［実験例４］図１のＤのタイプで、オリフ
ィス２の横断面が中心から１２０度の角度で三方に広が
りをもつ形であって、三方に広がるオリフィス２の幅ｗ
が１．２ｍｍ、オリフィス２の中心から三方に広がるオ
リフィス２の端までの長さが２．６ｍｍのＹ字形のオリ
フィス２出口の１部を囲みオリフィスプレート４底面
（図５のＡ）より下方に延びＹ字形のオリフィス２出口
の三つの端に高さ１．９ｍｍ、幅１．１ｍｍ、厚さ０．
３の凸状縁１がオリフィス２出口を挟むように、それぞ
れ凸状縁１を凸設した凸状縁１付オリフィス１５を有
し、この凸状縁１付オリフィス１５が３００個配置され
たオリフィスプレート４を有するガラス繊維紡糸用ブッ
シング３を用いて、Ｅガラス組成で、紡糸温度１２５０
℃、紡糸速度３０００ｍ／ｍｉｎで紡糸し、ウレタンオ
リゴマー５重量部、γーアミノプロピルトリエトキシシ
ラン０．５重量部、ポリオキシプロピレンポリオキシエ
チレンブロック共重合体０．７重量部及び脱イオン水９
３．８重量部からなる集束剤を３．８重量％付着させて
表面処理し、図４のＤに概略示されるガラス繊維の横断
面が、全曲線の長さの１．０倍の全直線の長さの線で囲
まれた非円形断面を有するガラス繊維を得た。得られた
ガラス繊維の横断面について図４のＤに示されるａとｂ
の比率は１：４．８であった。この条件で、約３時間の
連続紡糸を行なったが、切断は一度も見られなかった。[Experimental Example 4] In the type D of FIG. 1, the cross-section of the orifice 2 has a shape that expands in three directions at an angle of 120 degrees from the center, and the width w of the orifice 2 that expands in three directions.
Is 1.2 mm, and the length from the center of the orifice 2 to the end of the orifice 2 that spreads in three directions is 2.6 mm, and surrounds a part of the outlet of the Y-shaped orifice 2 below the bottom surface of the orifice plate 4 (A in FIG. 5). At the three ends of the extended Y-shaped orifice 2, the height is 1.9 mm, the width is 1.1 mm, and the thickness is 0.1 mm.
An orifice 15 having convex edges 1 provided with convex edges 1 so that the convex edges 1 of 3 sandwich the outlet of the orifice 2, and 300 orifices 15 having the convex edges 1 are arranged. Using a glass fiber spinning bushing 3 having a plate 4, an E glass composition and a spinning temperature of 1250.
C., spinning speed 3000 m / min, 5 parts by weight of urethane oligomer, 0.5 parts by weight of .gamma.-aminopropyltriethoxysilane, 0.7 parts by weight of polyoxypropylene polyoxyethylene block copolymer and 9 parts of deionized water.
3.8% by weight of 3.8% by weight of a sizing agent was applied to the surface treatment, and the cross section of the glass fiber schematically shown in FIG. 4D had a straight line of 1.0 times the length of the entire curve. A glass fiber having a non-circular cross section surrounded by a line of the length: The cross section of the obtained glass fiber is shown in FIG.
The ratio was 1: 4.8. Under these conditions, continuous spinning was carried out for about 3 hours, but no cutting was observed.
【００２９】［比較例１］ ［実験例１］に用いたオリフィスプレート４の凸状縁１
を取除いたことを除いては［実験例１］と同様のオリフ
ィスプレート４を有するガラス繊維紡糸用ブッシング３
を用いて、［実験例１］と同様の条件で紡糸した結果、
２つの長辺と２つの短辺からなるオリフィス孔の断面の
１つの短辺側に溶融ガラスの流れが偏り、切断が頻繁に
起こり、紡糸は困難を極めた。得られたガラス繊維の横
断面は円形で、［実験例１］の非円形断面を有するガラ
ス繊維は得られなかった。Comparative Example 1 Convex edge 1 of orifice plate 4 used in [Experimental Example 1]
Glass fiber spinning bushing 3 having an orifice plate 4 similar to that in [Experimental Example 1] except that
As a result of spinning under the same conditions as in [Experimental Example 1],
The flow of the molten glass was biased to one short side of the cross section of the orifice hole having two long sides and two short sides, cutting frequently occurred, and spinning was extremely difficult. The cross section of the obtained glass fiber was circular, and the glass fiber having the non-circular cross section of [Experimental Example 1] could not be obtained.
【００３０】[0030]
【発明の効果】実験例１及び比較例１にて得られたガラ
ス繊維をそれぞれ７０重量％を飽和ポリエステル（ポリ
プラスチックス（株）製、品名ジュラネックス２００
０）に添加し、エクストルーダーを用いてシリンダー温
度２７０℃で溶融混合した。得られた飽和ポリエステル
組成物をチップ化し、射出成形機を用いて成形温度２７
０℃、成形サイクルを一次圧（油圧：８００ｋｇ／ｃｍ
2 ）、及び冷却時間２０秒とし、型温度１００℃で厚さ
１／４インチ、幅１／２インチ、長さ５インチの板状体
（Ａ１）及び厚さ１／２４インチ、３インチ角の板状体
（Ａ２）とを成形した。得られた成形品Ａ１は、ＡＳＴ
Ｍ−Ｄ−２５６に準拠してアイゾッド衝撃強度（ノッチ
付き）を測定し、ＡＳＴＭ−Ｄ−７９０に準拠して曲げ
強度及び曲げ弾性率を測定した。Ａ２を用い、Ａ２表面
に樹脂の流動方向（縦方向）及び直角方向（横方向）に
付けられたマーク間の距離を三次元寸法測定装置を用い
て測定し、金型の実際の寸法との比率から収縮率を算出
した。結果を表１に示す。本発明の単数のオリフィス２
出口を囲み該オリフィスプレート４底面より下方に延び
る凸状縁１を設けたオリフィスプレート４を有するガラ
ス繊維紡糸用ブッシング３を用いて溶融ガラスを引出
し、固化することにより、ガラス繊維の横断面が、複数
の直線と複数の曲線により囲まれている非円形断面有す
るガラス繊維を効率よく製造することが出来る。本発明
の非円形断面ガラス繊維は、従来の円形断面にくらべ、
比表面積が大きいので、ガラス繊維と樹脂との間の全接
着力が大きく補強効果が向上する。さらに、ガラス繊維
が、マトリックス中で、例えば、ブロックを並べて積む
ような相互配置を取り、補強材の充填量の増大が可能と
なり、上述の全接着力の増大による補強効果の向上と相
俟って曲げ強度、曲げ弾性率、アイゾッド衝撃強度等の
機械的物性を著しく向上させる。又、特に、扁平な断面
形状を有しているものについて、異方性に関しては、ガ
ラスフレークのような効果を示し、成型品の収縮率の異
方性が少なく、線膨脹係数の異方性も少ないためにそり
がなく、成型品の表面の凹凸、ざらつき、補強材の浮き
が少ないために外観が良い。これらの効果は表１に示さ
れる実験例１及び比較例１にて得られたガラス繊維の補
強効果より明白である。[Effect of the Invention] 70% by weight of each of the glass fibers obtained in Experimental Example 1 and Comparative Example 1 is saturated polyester (manufactured by Polyplastics Co., Ltd., product name: DURANEX 200).
0) and melt-mixed using an extruder at a cylinder temperature of 270 ° C. The obtained saturated polyester composition is made into chips and molded at an injection temperature of 27 using an injection molding machine.
Primary pressure at 0 ° C, molding cycle (hydraulic pressure: 800 kg / cm
2) and a cooling time of 20 seconds, a plate-like body (A1) having a thickness of 1/4 inch, a width of 1/2 inch, and a length of 5 inch at a mold temperature of 100 ° C. and a thickness of 1/24 inch, 3 inch square And the plate-shaped body (A2) of. The obtained molded product A1 is AST
The Izod impact strength (with a notch) was measured according to MD-256, and the bending strength and the flexural modulus were measured according to ASTM-D-790. A2 is used to measure the distance between marks on the A2 surface in the resin flow direction (longitudinal direction) and the right angle direction (horizontal direction) using a three-dimensional dimension measuring device, and the actual dimension of the mold is measured. The shrinkage rate was calculated from the ratio. The results are shown in Table 1. Single Orifice 2 of the Invention
The glass fiber spinning bushing 3 having the orifice plate 4 provided with the convex edge 1 surrounding the outlet and extending downward from the bottom surface of the orifice plate 4 is used to draw out the molten glass and solidify it, whereby the cross section of the glass fiber is It is possible to efficiently manufacture a glass fiber having a non-circular cross section surrounded by a plurality of straight lines and a plurality of curves. The non-circular cross-section glass fiber of the present invention, compared to the conventional circular cross-section,
Since the specific surface area is large, the total adhesive force between the glass fiber and the resin is large and the reinforcing effect is improved. Further, the glass fibers can be arranged in a matrix such that the blocks are arranged side by side, and the filling amount of the reinforcing material can be increased, which is combined with the improvement of the reinforcing effect due to the increase in the total adhesive force. Mechanical properties such as flexural strength, flexural modulus, and Izod impact strength. In addition, especially for those having a flat cross-sectional shape, regarding the anisotropy, it exhibits an effect similar to that of glass flakes, the anisotropy of the shrinkage ratio of the molded product is small, and the anisotropy of the linear expansion coefficient is small. There is no warp because there is little, and the appearance is good because there is little unevenness on the surface of the molded product, roughness, and floating of the reinforcing material. These effects are obvious from the reinforcing effect of the glass fibers obtained in Experimental Example 1 and Comparative Example 1 shown in Table 1.
【図１】Ａ、Ｂ、Ｃ及びＤは本発明の実施例のオリフィ
スプレートの底面の一部を示す図である。1A, 1B, 1C and 1D are views showing a part of a bottom surface of an orifice plate according to an embodiment of the present invention.
【図２】図１のＡ、Ｂ、Ｃ及びＤのＸ−Ｙの断面図であ
る。FIG. 2 is a cross-sectional view taken along the line XY in FIGS. 1A, 1B, C and D.
【図３】図１のＡの斜視図である。FIG. 3 is a perspective view of A in FIG.
【図４】Ａは実験例１により得られた本発明の非円形断
面を有するガラス繊維の概略図で、Ｂは実験例２により
得られた本発明の非円形断面を有するガラス繊維の概略
図で、Ｃは実験例３により得られた本発明の非円形断面
を有するガラス繊維の概略図で、Ｄは実験例４により得
られた本発明の非円形断面を有するガラス繊維の概略図
である。FIG. 4A is a schematic view of a glass fiber having a non-circular cross section of the present invention obtained in Experimental Example 1, and B is a schematic view of a glass fiber having a non-circular cross section of the present invention obtained in Experimental Example 2. C is a schematic view of the glass fiber having a non-circular cross section of the present invention obtained in Experimental Example 3, and D is a schematic view of the glass fiber having a non-circular cross section of the present invention obtained in Experimental Example 4. .
【図５】Ａは本発明のオリフィスプレートの実施に用い
る装置の概略側面図の一例で、Ｂはその要部の正面図で
ある。FIG. 5A is an example of a schematic side view of an apparatus used for implementing the orifice plate of the present invention, and B is a front view of a main part thereof.
１ 凸状縁 ２ オリフィス ３ ブッシング ４ オリフィスプレート ５ 集束剤塗布ローラー ６ 集束ローラー ７ 巻取装置 ８ 冷風吹出装置 ９ 溶融ガラス １０ フィラメント １１ ストランド １２ 巻取管 １３ 冷風吹出パイプ １５ 凸状縁付オリフィス 1 Convex Edge 2 Orifice 3 Bushing 4 Orifice Plate 5 Converging Agent Applying Roller 6 Focusing Roller 7 Winding Device 8 Cold Air Blowing Device 9 Molten Glass 10 Filament 11 Strand 12 Winding Pipe 13 Cold Air Blowing Pipe 15 Orifice with Convex Edge
【表１】 [Table 1]
───────────────────────────────────────────────────── 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 // Ｃ０８Ｊ 5/08 7310−4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location // C08J 5/08 7310-4F
Claims (14)
ィスプレートにおいて、単数のオリフィス出口を囲み該
オリフィスプレート底面より下方に延びる凸状縁を設け
た事を特徴とするオリフィスプレート。1. An orifice plate having a plurality of orifices on a bottom surface, wherein an orifice plate surrounding a single orifice outlet is provided with a convex edge extending downward from the bottom surface of the orifice plate.
前記オリフィスプレート底面より下方に延びる複数の前
記凸状縁を設けた請求項１のオリフィスプレート。2. The orifice plate according to claim 1, further comprising a plurality of the convex edges that surround a part of the outlet of the single orifice and extend downward from a bottom surface of the orifice plate.
前記オリフィスプレート底面より下方に延びる前記凸状
縁は前記単数のオリフィス出口を挟む一対の四角形の板
である請求項２のオリフィスプレート。3. The orifice plate according to claim 2, wherein the convex edge surrounding a part of the single orifice outlet and extending downward from the bottom surface of the orifice plate is a pair of rectangular plates sandwiching the single orifice outlet.
に接する面の高さが０．０１−５０．００ｍｍである請
求項２のオリフィスプレート。4. The orifice plate according to claim 2, wherein the convex edge has a height of a surface of the convex edge in contact with the molten glass of 0.01 to 50.00 mm.
に接する面の先端の幅がが０．００５−４０．０００ｍ
ｍである請求項２のオリフィスプレート。5. A width of a tip of a surface of the convex edge that is in contact with the molten glass is 0.005-40.000 m.
The orifice plate of claim 2, wherein m is m.
数の曲線により囲まれている事を特徴とする非円形断面
ガラス繊維。6. A non-circular cross-section glass fiber characterized in that the cross section of the glass fiber is surrounded by a plurality of straight lines and a plurality of curves.
さの合計より大きい事を特徴とする請求項４の非円形断
面ガラス繊維。7. The non-circular cross-section glass fiber according to claim 4, wherein the total length of the straight lines is larger than the total length of the straight lines.
の合計の３倍以上である事を特徴とする請求項５の非円
形断面ガラス繊維。8. The non-circular cross-section glass fiber according to claim 5, wherein the total length of the straight lines is 3 times or more the total length of the straight lines.
が２．３以上であることを特徴とする請求項４の非円形
断面ガラス繊維。9. The non-circular cross-section glass fiber according to claim 4, wherein the ratio of the longest diameter to the shortest diameter of the previous cross-section is 2.3 or more.
比が５から１２であることを特徴とする請求項７の非円
形断面ガラス繊維。10. The non-circular cross-section glass fiber according to claim 7, wherein the ratio of the longest diameter to the shortest diameter of the previous cross-section is 5 to 12.
ある事を特徴とする請求項４の非円形断面ガラス繊維。11. The non-circular cross-section glass fiber according to claim 4, wherein the cross section of the glass fiber is a quadrangle.
る事を特徴とする請求項１１の非円形断面ガラス繊維。12. The glass fiber having a non-circular cross section according to claim 11, wherein the corners of the quadrangle are substantially arc-shaped.
ある事を特徴とする請求項４の非円形断面ガラス繊維。13. The non-circular cross-section glass fiber according to claim 4, wherein the cross-section of the glass fiber is triangular.
る事を特徴とする請求項１３の非円形断面ガラス繊維。14. The non-circular cross-section glass fiber of claim 13, wherein the corners of the triangle are substantially arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6234488A JPH07126033A (en) | 1993-09-10 | 1994-09-05 | Orifice plate and glass fiber of noncircular cross section |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-248601 | 1993-09-10 | ||
| JP24860193 | 1993-09-10 | ||
| JP6234488A JPH07126033A (en) | 1993-09-10 | 1994-09-05 | Orifice plate and glass fiber of noncircular cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07126033A true JPH07126033A (en) | 1995-05-16 |
Family
ID=26531595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6234488A Pending JPH07126033A (en) | 1993-09-10 | 1994-09-05 | Orifice plate and glass fiber of noncircular cross section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07126033A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6543258B1 (en) | 1997-12-02 | 2003-04-08 | Nitto Boseki Co., Ltd. | Glass fiber nonwoven fabric and printed wiring board |
| KR100447639B1 (en) * | 2002-07-30 | 2004-09-13 | 세원기업주식회사 | Production Method And Of A Quadrangle Of Monofilament |
| JP2007302866A (en) * | 2006-01-13 | 2007-11-22 | Mitsubishi Engineering Plastics Corp | Polyamide resin composition for portable electronic device and molding for portable electronic device |
| JP2008260830A (en) * | 2007-04-11 | 2008-10-30 | Idemitsu Kosan Co Ltd | Heat-conductive resin composition |
| JP2012076084A (en) * | 2012-01-27 | 2012-04-19 | Shinetsu Quartz Prod Co Ltd | Manufacturing method for fibrous photocatalyst object |
| WO2020040033A1 (en) * | 2018-08-20 | 2020-02-27 | セントラル硝子株式会社 | Bushing for manufacturing glass fiber, and method for manufacturing glass fiber |
| WO2021256144A1 (en) * | 2020-06-16 | 2021-12-23 | 日本電気硝子株式会社 | Nozzle for deformed cross-section glass fiber, and manufacturing method of deformed cross-section glass fiber |
-
1994
- 1994-09-05 JP JP6234488A patent/JPH07126033A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6543258B1 (en) | 1997-12-02 | 2003-04-08 | Nitto Boseki Co., Ltd. | Glass fiber nonwoven fabric and printed wiring board |
| US6615616B2 (en) | 1997-12-02 | 2003-09-09 | Nitto Boseki Co. Ltd. | Glass fiber nonwoven fabric and printed wiring board |
| KR100447639B1 (en) * | 2002-07-30 | 2004-09-13 | 세원기업주식회사 | Production Method And Of A Quadrangle Of Monofilament |
| JP2007302866A (en) * | 2006-01-13 | 2007-11-22 | Mitsubishi Engineering Plastics Corp | Polyamide resin composition for portable electronic device and molding for portable electronic device |
| JP2008260830A (en) * | 2007-04-11 | 2008-10-30 | Idemitsu Kosan Co Ltd | Heat-conductive resin composition |
| JP2012076084A (en) * | 2012-01-27 | 2012-04-19 | Shinetsu Quartz Prod Co Ltd | Manufacturing method for fibrous photocatalyst object |
| WO2020040033A1 (en) * | 2018-08-20 | 2020-02-27 | セントラル硝子株式会社 | Bushing for manufacturing glass fiber, and method for manufacturing glass fiber |
| JPWO2020040033A1 (en) * | 2018-08-20 | 2021-08-10 | セントラル硝子株式会社 | Bushing for glass fiber manufacturing and glass fiber manufacturing method |
| WO2021256144A1 (en) * | 2020-06-16 | 2021-12-23 | 日本電気硝子株式会社 | Nozzle for deformed cross-section glass fiber, and manufacturing method of deformed cross-section glass fiber |
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