JP3811271B2 - Self-supporting fiber reinforced tape - Google Patents
Self-supporting fiber reinforced tape Download PDFInfo
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- JP3811271B2 JP3811271B2 JP27048297A JP27048297A JP3811271B2 JP 3811271 B2 JP3811271 B2 JP 3811271B2 JP 27048297 A JP27048297 A JP 27048297A JP 27048297 A JP27048297 A JP 27048297A JP 3811271 B2 JP3811271 B2 JP 3811271B2
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- Prior art keywords
- self
- fiber
- supporting
- reinforced tape
- fiber reinforced
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- Expired - Fee Related
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Description
【０００１】
【発明の属する技術分野】
本発明は、自立性および電気絶縁性に優れた自立性繊維補強テープ、その製造方法およびそのテープを用いた自動巻取り式巻き尺に関するものである。
【０００２】
【従来の技術】
ある長さのテープ状物の一端のみを保持して水平にしたとき、途中で折れ曲がらず、略直線状を保つことを自立性を有すると称している。
【０００３】
従来から自動巻取り式巻き尺は、そのスケール部分に自立性のテープ状物を必要とし、従来から金属製のものが使用されている。また、金属製以外のものとしては、炭素繊維補強テープが特開昭５７−３５７０２号公報に記載されているが、これらを電気工事現場で使用するには金属製のものと同様、感電の危険性があり使用範囲が限定される問題があった。
【０００４】
この問題を解決するものとして、実開昭４８−１０４６５号公報には、「ガラス繊維とエポキシ樹脂を使用し、幅方向にアール（曲率）を持たせた巻尺」が記載されている。
【０００５】
また、実公昭５７ー２２０８１号公報には芳香族ポリアミド繊維を用いた巻き尺が記載され、特公昭６３ー２１１２１号公報にはガラス繊維からなる芯材に熱硬化性ポリエステル樹脂を含浸させた巻き尺が記載されている。
【０００６】
【発明が解決しようとする課題】
しかしながら、ガラス繊維は一度折ってしまうと自立性がなくなるため、樹脂の含浸が重要となり、通常のエポキシ樹脂を含浸させたのではガラスとの密着性が悪く、時間とともに自立性が減り、ケースの中に巻込んだ時の巻き癖もついてきて問題であった。
【０００７】
また、ポリエステル樹脂は硬化が早くて生産性がよく、比較的安価で多様
な成形法が可能であるなどの長所はあるものの、接着性、靭性、機械的強度、熱および寸法安定性、電気特性の点で問題があった。
【０００８】
一方、芳香族ポリアミド繊維は強度および電気絶縁性に優れ、自立性テープにふさわしい材質であるが、上記実公昭５７ー２２０８１号公報には芳香族ポリアミドの織物の表面を樹脂で被覆することが記載されているが、具体的には可撓性樹脂、たとえばポリアミド類、ポリエステル類、軟質ポリ塩化ビニール、ポリウレタン類、ゴムなどの樹脂に埋め込むことが記載されているが、このような樹脂に埋め込んだのでは、自立性の良い又は高い（薄い）テープは得られない。
【０００９】
本発明の目的は、上記の従来技術の欠点を解消し、自立性および電気絶縁性に優れた自立性繊維補強テープ、その製造方法およびそのテープを用いた巻き尺を提供することにある。
【００１０】
【課題を解決するための手段】
本発明は次のような手段を採るものである。
（１）ガラス繊維および／またはアラミド繊維からなる帯状物であって、水系エポキシ樹脂が含浸・硬化されていることを特徴とする自立性繊維補強テープ。
【００１１】
（２）帯状物が、ガラス繊維および／またはアラミド繊維の織物であることを特徴とする上記（１）記載の自立性繊維補強テープ。
【００１２】
（３）帯状物が、ガラス繊維とアラミド繊維の交織織物であることを特徴とする上記（１）記載の自立性繊維補強テープ。
【００１３】
（４）帯状物が、よこ糸にガラス繊維を用い、たて糸にガラス繊維および／またはアラミド繊維を用いた交織織物であることを特徴とする上記（１）記載の自立性繊維補強テープ。
【００１４】
（５）帯状物が、幅方向に湾曲していることを特徴とする上記（１）１記載の自立性繊維補強テープ。
【００１５】
（６）ガラス繊維および／またはアラミド繊維からなる帯状物に水系エポキシ樹脂を含浸し、形状付与手段によって帯状物の幅方向に湾曲させると共に前記水系エポキシ樹脂を熱硬化させることを特徴とする自立性繊維補強テープの製造方法。
【００１６】
（７）形状付与手段がロール、型またはガイドであることを特徴とする上記（６）記載の自立性繊維補強テープの製造方法。
【００１７】
（８）上記（１）〜（５）いずれか記載の自立性繊維補強テープをスケールとして用いた巻き尺。
【００１８】
【発明の実施の形態】
本発明におけるガラス繊維とはガラスの長繊維であり、市販のものを使用できる。アラミド繊維も特に限定されず、パラ配向アラミド繊維あるいは共重合タイプのアラミド繊維を使用することができ、商品名としては”ケブラー”、”トワロン”、”テクノーラ”等が好ましく使用できる。
【００１９】
本発明における帯状物とは、ガラス繊維および／またはアラミド繊維の織物または編み物を一定幅で長尺にしたもので、幅は０．５ｍｍから５０ｍｍが好ましく、長さは連続して作られるので制限はない。ガラス繊維とアラミド繊維はそれぞれ単独で使用可能であるが、交織織物が好ましい。交織織物の場合、よこ糸にガラス繊維を用い、たて糸にガラス繊維および／またはアラミド繊維を用いることが好ましい。織り種は特限定されないが平織が寸法安定性がよく、好ましい。
【００２０】
本発明においては、帯状物に水系エポキシ樹脂を含浸させ、かつ硬化する。水系エポキシ樹脂とは、そのままあるいは反応性界面活性剤を用いて水に分散させることができるものをいう。水系エポキシ樹脂としては、水系ビスフェノールＡ（ＢＰＡ）型エポキシ樹脂、水系ノボラック型エポキシ樹脂、水系ウレタン変性エポキシ樹脂などが好ましく使用できる。
【００２１】
帯状物に樹脂を含浸させる方法は通常のディップ方式が好ましく、硬化は熱硬化が好ましい。帯状物に樹脂を含浸後、本発明においては、帯状物を熱処理して、帯状物の幅方向に湾曲させる必要がある。湾曲させる手段としては、ロール、型、ガイドなどを用いることができ、通常加熱して、樹脂の硬化と同時に行う。湾曲の程度は、曲率半径７〜２０ｍｍ程度が好ましい。曲率半径が小さいほど自立性はよくなるが、たとえば巻き尺用テープにしたとき、目盛りが読みにくいという不都合が生じるので、さらに好ましくは曲率半径９〜１５ｍｍである。
【００２２】
本発明の繊維補強テープは、自立性および電気絶縁性に優れているので巻き尺、特に自動巻き込み式の巻き尺のテープとして有用である。
【００２３】
【実施例】
たて糸としてガラス繊維（ユニチカユーエムグラス社製）１５０1/2 とアラミド繊維（東レ・デュポン社製”ケブラー−４９”）４００ｄを使用し、１９ｍｍ幅に合わせて３２本使い、よこ糸として１５０1/2 のガラス繊維を２５ｍｍ長に対して２９本使って図１に示すような平織の帯状物を作成した。
【００２４】
この帯状物に、図２で示すような装置を用い、表１に示す樹脂を含浸させた。続いて、図３および図４に示す装置を用いて、帯状物を湾曲させると同時に樹脂の硬化を行った。
【００２５】
得られたテープを外径３０ｍｍの巻芯に巻いて１週間室温下で固定後、取りだし、自立性を図５に示す測定装置を用いて測定した。結果を表１に示す。
【００２６】
【表１】
表１の結果から、水系エポキシ樹脂を含浸させたものは優れた自立性を示すことがわかる。
【００２８】
【発明の効果】
本発明の繊維補強テープはガラス繊維および／またはアラミド繊維をベースとして水系エポキシ樹脂を含浸させ、かつ幅方向に湾曲させたものであるため、電気絶縁性に優れ、かつ自立性に優れており、巻き尺、特に自動巻き込み式巻き尺のメジャーテープとして特に優れている。
【図面の簡単な説明】
【図１】 本発明の帯状物の一例の織り組織示す。
【図２】 本発明の樹脂含浸および熱硬化装置の説明図を示す。
【図３】 本発明の湾曲化・熱硬化装置の説明図を示す。
【図４】 本発明の湾曲化装置の説明図を示す。
【図５】本発明の自立性測定装置の説明図
【符号の説明】
１ たて糸
２ よこ糸
３ クリール
４ 樹脂バス
５ 加熱炉
６ 帯状物
７ 巻取機
８ 湾曲ロール
９ 湾曲ガイド
10 巻取機[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a self-supporting fiber reinforced tape excellent in self-supporting property and electrical insulation, a method for producing the tape, and an automatic winding tape using the tape.
[0002]
[Prior art]
When only one end of a certain length of tape-like material is held and leveled, it is referred to as having a self-supporting property that it does not bend in the middle and maintains a substantially straight shape.
[0003]
Conventionally, the automatic winding type tape measure requires a self-supporting tape-like material at the scale portion, and a metal one has been conventionally used. Further, as other than metal, carbon fiber reinforced tapes are described in Japanese Patent Application Laid-Open No. 57-35702. There is a problem that the range of use is limited.
[0004]
In order to solve this problem, Japanese Utility Model Publication No. 48-10465 describes "a tape measure using glass fiber and epoxy resin and having a radius (curvature) in the width direction".
[0005]
Japanese Utility Model Publication No. 57-22081 discloses a tape measure using an aromatic polyamide fiber, and Japanese Patent Publication No. 63-21121 is a tape measure in which a core material made of glass fiber is impregnated with a thermosetting polyester resin. Are listed.
[0006]
[Problems to be solved by the invention]
However, since the glass fiber is not self-supporting once it is folded, it is important to impregnate the resin. When impregnated with an ordinary epoxy resin, the adhesion with the glass is poor, and the self-supporting property decreases with time. There was also a problem with the curl when it was caught inside.
[0007]
In addition, polyester resin has advantages such as fast curing, good productivity, relatively low cost and various molding methods, but adhesion, toughness, mechanical strength, thermal and dimensional stability, electrical properties There was a problem in terms of.
[0008]
On the other hand, the aromatic polyamide fiber is excellent in strength and electrical insulation and is a material suitable for a self-supporting tape. However, the Japanese Utility Model Publication No. 57-22081 describes that the surface of an aromatic polyamide fabric is coated with a resin. Although it is specifically described that it is embedded in a resin such as a flexible resin such as polyamides, polyesters, soft polyvinyl chloride, polyurethanes, rubber, etc., it is embedded in such a resin. Therefore, a tape with good or high self-supporting property (thin) cannot be obtained.
[0009]
An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a self-supporting fiber reinforced tape excellent in self-supporting property and electrical insulation, a manufacturing method thereof, and a tape measure using the tape.
[0010]
[Means for Solving the Problems]
The present invention employs the following means.
(1) A self-supporting fiber-reinforced tape, which is a strip made of glass fiber and / or aramid fiber, which is impregnated and cured with an aqueous epoxy resin.
[0011]
(2) The self-supporting fiber reinforced tape according to the above (1), wherein the strip is a woven fabric of glass fiber and / or aramid fiber.
[0012]
(3) The self-supporting fiber reinforced tape according to the above (1), wherein the strip is a woven fabric of glass fibers and aramid fibers.
[0013]
(4) The self-supporting fiber-reinforced tape according to (1) above, wherein the belt is a woven fabric using glass fibers for the weft and glass fibers and / or aramid fibers for the warp.
[0014]
(5) The self-supporting fiber reinforced tape according to (1), wherein the belt-like object is curved in the width direction.
[0015]
(6) A self-supporting property characterized by impregnating a strip of glass fiber and / or aramid fiber with a water-based epoxy resin, curving it in the width direction of the strip with a shape imparting means, and thermosetting the water-based epoxy resin. Manufacturing method of fiber reinforced tape.
[0016]
(7) The method for producing a self-supporting fiber-reinforced tape according to (6), wherein the shape imparting means is a roll, a mold or a guide.
[0017]
(8) A tape measure using the self-supporting fiber reinforced tape according to any one of (1) to (5) as a scale.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The glass fiber in this invention is a glass long fiber, and can use a commercially available thing. The aramid fibers are not particularly limited, and para-oriented aramid fibers or copolymer-type aramid fibers can be used, and “Kevlar”, “Twaron”, “Technola”, etc. are preferably used as trade names.
[0019]
In the present invention, the band-like material is a glass fiber and / or aramid fiber woven or knitted fabric having a constant width and a long width, preferably 0.5 mm to 50 mm, and the length is continuously limited. There is no. Glass fiber and aramid fiber can be used alone, but a woven fabric is preferred. In the case of a union woven fabric, it is preferable to use glass fibers for the weft and glass fibers and / or aramid fibers for the warp. The type of weaving is not particularly limited, but plain weaving is preferable because it has good dimensional stability.
[0020]
In the present invention, the strip is impregnated with a water-based epoxy resin and cured. The water-based epoxy resin refers to a resin that can be dispersed in water as it is or using a reactive surfactant. As the water-based epoxy resin, a water-based bisphenol A (BPA) type epoxy resin, a water-based novolac type epoxy resin, a water-based urethane-modified epoxy resin and the like can be preferably used.
[0021]
The method of impregnating the strip with resin is preferably a normal dip method, and the curing is preferably thermosetting. In the present invention, after the strip is impregnated with the resin, it is necessary to heat the strip to bend in the width direction of the strip. As a means for bending, a roll, a mold, a guide, or the like can be used. Usually, heating is performed simultaneously with curing of the resin. The degree of curvature is preferably about 7 to 20 mm in radius of curvature. The smaller the radius of curvature, the better the self-supporting property. However, when the tape is used as a tape measure, for example, the scale is difficult to read, so the radius of curvature is preferably 9 to 15 mm.
[0022]
Since the fiber reinforced tape of the present invention is excellent in self-supporting property and electrical insulation, it is useful as a tape measure, particularly as an automatic winding tape.
[0023]
【Example】
Glass fiber (Unitika Yum Glass Co., Ltd.) 1501/2 and aramid fiber (Toray DuPont "Kevlar-49") 400d are used as warp yarns, 32 pieces are used in accordance with the width of 19mm, and weft yarns of 1501/2 glass are used. A plain weave strip as shown in FIG. 1 was prepared using 29 fibers with a length of 25 mm.
[0024]
The strips were impregnated with the resins shown in Table 1 using an apparatus as shown in FIG. Subsequently, using the apparatus shown in FIGS. 3 and 4, the belt was bent and the resin was cured at the same time.
[0025]
The obtained tape was wound around a core having an outer diameter of 30 mm, fixed at room temperature for 1 week, taken out, and the self-supporting property was measured using a measuring apparatus shown in FIG. The results are shown in Table 1.
[0026]
[Table 1]
From the results in Table 1, it can be seen that those impregnated with a water-based epoxy resin exhibit excellent self-supporting properties.
[0028]
【The invention's effect】
The fiber reinforced tape of the present invention is impregnated with a water-based epoxy resin based on glass fiber and / or aramid fiber and curved in the width direction, and thus has excellent electrical insulation and excellent self-supporting property. It is particularly excellent as a measuring tape for tape measure, especially automatic winding type tape measure.
[Brief description of the drawings]
FIG. 1 shows a woven structure of an example of a band according to the present invention.
FIG. 2 is an explanatory view of a resin impregnation and thermosetting apparatus of the present invention.
FIG. 3 is an explanatory view of a curving / thermosetting apparatus of the present invention.
FIG. 4 is an explanatory view of a bending apparatus of the present invention.
FIG. 5 is an explanatory diagram of a self-supporting measuring apparatus according to the present invention.
DESCRIPTION OF
10 Winder
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27048297A JP3811271B2 (en) | 1997-09-17 | 1997-09-17 | Self-supporting fiber reinforced tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27048297A JP3811271B2 (en) | 1997-09-17 | 1997-09-17 | Self-supporting fiber reinforced tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1193077A JPH1193077A (en) | 1999-04-06 |
| JP3811271B2 true JP3811271B2 (en) | 2006-08-16 |
Family
ID=17486918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27048297A Expired - Fee Related JP3811271B2 (en) | 1997-09-17 | 1997-09-17 | Self-supporting fiber reinforced tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3811271B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208502A (en) * | 2000-01-28 | 2001-08-03 | Tajima Tool Corp | Tape measure |
-
1997
- 1997-09-17 JP JP27048297A patent/JP3811271B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1193077A (en) | 1999-04-06 |
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