JP2009117144A - Flat insulation wire and its manufacturing method - Google Patents

Flat insulation wire and its manufacturing method Download PDF

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JP2009117144A
JP2009117144A JP2007288178A JP2007288178A JP2009117144A JP 2009117144 A JP2009117144 A JP 2009117144A JP 2007288178 A JP2007288178 A JP 2007288178A JP 2007288178 A JP2007288178 A JP 2007288178A JP 2009117144 A JP2009117144 A JP 2009117144A
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resin
insulated wire
adhesive layer
insulating layer
flat
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JP5176490B2 (en
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Yoshifumi Kawada
好文 川田
Kazusato Shiina
和聡 椎名
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Sumitomo Electric Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat insulation wire which is excellent in electric wire characteristics, and also in adhesion properties between a bridge portion and an insulation wire, and to provide its manufacturing method. <P>SOLUTION: The flat insulation wire is configured by applying two or more insulation wires arranged in parallel to a resin film containing an adhesion layer, and is characterized in that the insulation wire is configured by coating a center conductor with an insulating layer which uses a cross-linked polyolefin-based resin as a principal component, and the adhesion layer is made of the resin similar to that of the principal component of the resin in the insulating layer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は平型絶縁電線およびその製造方法に関する。   The present invention relates to a flat insulated wire and a method for manufacturing the same.

平型絶縁電線は、例えば図3(a)に示すように、中心導体31の周囲を絶縁層32で覆ってなる絶縁電線33を、ブリッジ部34で相互に結んだ構造のものである。一方、平型絶縁電線として、図3(b)に示すように、中心導体31の周囲を、ブリッジ部と一体成型された絶縁層35で覆う構造ものも知られている。
これらの平型絶縁電線30は、整列した中心導体31あるいは絶縁電線34を、PVCやプラスチックテープ等でロールプレスすることによって製造されるものである(例えば特許文献1参照)。
特開昭58−204407号公報
For example, as shown in FIG. 3A, the flat insulated wire has a structure in which insulated wires 33 formed by covering the periphery of the center conductor 31 with an insulating layer 32 are connected to each other by a bridge portion 34. On the other hand, as a flat insulated wire, as shown in FIG. 3B, a structure in which the periphery of the center conductor 31 is covered with an insulating layer 35 integrally formed with the bridge portion is also known.
These flat insulated wires 30 are manufactured by roll-pressing aligned central conductors 31 or insulated wires 34 with PVC, plastic tape, or the like (see, for example, Patent Document 1).
JP 58-204407 A

一方、耐熱性、耐油性、耐薬品性などを向上させるために電線の絶縁層を架橋することがある。このような電線を複数本束ねて樹脂フィルムに密着するときに密着強度が弱いことが問題となっていた。   On the other hand, in order to improve heat resistance, oil resistance, chemical resistance, etc., the insulating layer of the electric wire may be cross-linked. When such a plurality of electric wires are bundled and adhered to the resin film, the problem is that the adhesion strength is weak.

本発明は、上記の従来の問題点を解決するものであって、電線特性に優れつつ、ブリッジ部と絶縁電線との密着性にも優れた平型絶縁電線およびその製造方法を提供することを目的とする。   The present invention solves the above-described conventional problems, and provides a flat insulated wire excellent in electric wire characteristics and excellent in adhesion between a bridge portion and an insulated wire, and a method for manufacturing the same. Objective.

(1)並列に配置した複数本の絶縁電線が、接着層を含む樹脂フィルムに接着されてなる平型絶縁電線であって、
前記絶縁電線は、架橋されたポリオレフィン系樹脂を主成分とする絶縁層で中心導体を被覆してなり、
前記接着層は、前記絶縁層における樹脂の主成分と同系樹脂を主成分とすることを特徴とする平型絶縁電線。
(1) A flat insulated wire in which a plurality of insulated wires arranged in parallel are bonded to a resin film including an adhesive layer,
The insulated wire is formed by covering a central conductor with an insulating layer mainly composed of a cross-linked polyolefin-based resin,
2. The flat insulated wire according to claim 1, wherein the adhesive layer is mainly composed of a resin similar to a main component of the resin in the insulating layer.

(2)前記絶縁層における樹脂の主成分が架橋ポリエチレン系樹脂であり、前記接着層の主成分がポリエチレン系樹脂であることを特徴とする上記(1)記載の平型絶縁電線。 (2) The flat insulated wire according to (1) above, wherein the main component of the resin in the insulating layer is a cross-linked polyethylene resin, and the main component of the adhesive layer is a polyethylene resin.

(3)前記接着層が、変性ポリエチレン樹脂、α−オレフィン共重合体、無水酸変性低分子量ポリエチレン樹脂からなるベース樹脂に、難燃剤、難燃助剤および酸化防止剤を配合してなることを特徴とする上記(1)または(2)記載の平型絶縁電線。 (3) The adhesive layer is formed by blending a flame retardant, a flame retardant aid and an antioxidant with a base resin comprising a modified polyethylene resin, an α-olefin copolymer, and an acid-modified low molecular weight polyethylene resin. The flat insulated wire according to the above (1) or (2), characterized in that it is characterized in that

(4)前記樹脂フィルムを、複数本並列に配列された絶縁電線の片面のみに有することを特徴とする上記(1)〜(3)のいずれかに記載の平型絶縁電線。 (4) The flat insulated wire according to any one of (1) to (3), wherein the resin film is provided only on one side of the insulated wires arranged in parallel.

(5)並列に配置した複数本の絶縁電線が、接着層を含む樹脂フィルムに接着されてなる平型絶縁電線の製造方法であって、
前記絶縁電線は、架橋されたポリオレフィン系樹脂を主成分とする絶縁層で中心導体を被覆してなり、
前記接着層は、前記絶縁層における樹脂の主成分と同系樹脂を主成分とし、
前記絶縁電線を複数本並列に配置する工程と、
前記絶縁電線に前記樹脂フィルムを前記接着層を有する側から押し当てる工程と、
前記絶縁電線と前記樹脂フィルムとを押し当てた状態で加熱する工程とを含むことを特徴とする平型絶縁電線の製造方法。
(5) A method for producing a flat insulated wire in which a plurality of insulated wires arranged in parallel are bonded to a resin film including an adhesive layer,
The insulated wire is formed by covering a central conductor with an insulating layer mainly composed of a cross-linked polyolefin-based resin,
The adhesive layer is mainly composed of the same resin as the main component of the resin in the insulating layer,
Arranging a plurality of the insulated wires in parallel;
Pressing the resin film against the insulated wire from the side having the adhesive layer;
And a step of heating in a state where the insulated wire and the resin film are pressed against each other.

本発明によれば、電線特性に優れつつ、ブリッジ部と絶縁電線との密着性にも優れた平型絶縁電線およびその製造方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the flat insulated wire excellent also in the adhesiveness of a bridge part and an insulated wire while being excellent in an electrical wire characteristic, and its manufacturing method can be provided.

以下、本発明に係る平型絶縁電線の実施形態について図面を参照しつつ説明する。
図1は本発明に係る平型絶縁電線の一例を示す概略断面図である。
平型絶縁電線10は、所定のピッチで並列に配置された複数本の絶縁電線3に、接着層4を含む樹脂フィルム6を、前記絶縁電線3と前記接着層4とが接着するようにラミネートした構造からなる。即ち、複数本の絶縁電線3は、前記接着層4を含む樹脂フィルム6によってブリッジされて相互に結んだ構造となっている。
Embodiments of a flat insulated wire according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic sectional view showing an example of a flat insulated wire according to the present invention.
The flat insulated wire 10 is laminated to a plurality of insulated wires 3 arranged in parallel at a predetermined pitch so that a resin film 6 including an adhesive layer 4 is adhered to the insulated wire 3 and the adhesive layer 4. It consists of the structure. That is, the plurality of insulated wires 3 are bridged by the resin film 6 including the adhesive layer 4 and are connected to each other.

絶縁電線3は、中心導体1の周囲を、架橋された絶縁層2で被覆されてなる。中心導体1は、軟銅またはアルミ線に錫メッキ等を施した単線、または複数本の細い単線を撚り合わせた撚り線からなる。   The insulated wire 3 is formed by covering the periphery of the central conductor 1 with a crosslinked insulating layer 2. The central conductor 1 is made of a single wire obtained by tinning an annealed copper or aluminum wire, or a stranded wire obtained by twisting a plurality of thin single wires.

樹脂フィルム6は、図1に示すように、基材(あるいは基材層ともいう)5に接着層4を積層した構成としてもよい。   As shown in FIG. 1, the resin film 6 may have a configuration in which an adhesive layer 4 is laminated on a base material (or a base material layer) 5.

本発明では、前記接着層4を構成する主成分を、前記絶縁層2を構成する樹脂の主成分と同系樹脂とすることを特徴とする。ここでいう「主成分」とは、各層において最大重量を占める成分を意味する。また「同系樹脂」とは、主鎖構造が同じである樹脂を意味する。
絶縁層2が架橋されたポリオレフィン系樹脂を主成分とする絶縁層である場合、前記接着層4の主成分を、前記絶縁層2を構成する樹脂の主成分と同系樹脂とすることにより、接着層4と絶縁層2との密着強度が格段に向上する。
In the present invention, the main component constituting the adhesive layer 4 is a resin similar to the main component of the resin constituting the insulating layer 2. The “main component” here means a component occupying the maximum weight in each layer. Further, the “same resin” means a resin having the same main chain structure.
When the insulating layer 2 is an insulating layer mainly composed of a cross-linked polyolefin-based resin, the main component of the adhesive layer 4 is the same resin as the main component of the resin constituting the insulating layer 2, thereby allowing adhesion. The adhesion strength between the layer 4 and the insulating layer 2 is remarkably improved.

絶縁層2としては、少なくとも1種以上の架橋性樹脂をベース樹脂として形成される。
架橋性樹脂としては、好ましくは架橋ポリオレフィン系樹脂であり、より好ましくは架橋ポリエチレン系樹脂である。架橋ポリエチレン系樹脂としては、低密度ポリエチレン樹脂(LDPE)、高密度ポリエチレン樹脂(HDPE)、エチレン・ビニルアセテート樹脂(EVA)、エチレン・エチルアクリレート樹脂(EEA)等の架橋ポリエチレン樹脂あるいは架橋変性ポリエチレン樹脂から選択される1種の樹脂又は2種以上の樹脂の混合物が挙げられる。
架橋ポリエチレン系樹脂は、中心電線1に、ポリエチレン樹脂または変性ポリエチレン樹脂を含む樹脂組成物を押出被覆した後、前記ポリエチレン樹脂または変性ポリエチレン樹脂をγ線照射や電子線照射によって架橋することによって得られる。架橋することにより、耐熱性、耐油性、耐薬品性などの電線特性が向上する。
The insulating layer 2 is formed using at least one kind of crosslinkable resin as a base resin.
The crosslinkable resin is preferably a cross-linked polyolefin resin, and more preferably a cross-linked polyethylene resin. Cross-linked polyethylene resins include low-density polyethylene resin (LDPE), high-density polyethylene resin (HDPE), ethylene-vinyl acetate resin (EVA), ethylene-ethyl acrylate resin (EEA), and other cross-linked polyethylene resins or cross-linked modified polyethylene resins. 1 type of resin selected from these, or the mixture of 2 or more types of resin is mentioned.
The cross-linked polyethylene resin is obtained by extrusion-coating a resin composition containing a polyethylene resin or a modified polyethylene resin on the central electric wire 1 and then cross-linking the polyethylene resin or the modified polyethylene resin by γ-ray irradiation or electron beam irradiation. . By cross-linking, the electric wire characteristics such as heat resistance, oil resistance and chemical resistance are improved.

また、絶縁層2は難燃性を有していることが望ましく、例えば、有機系では臭素系あるいは塩素系の難燃剤、無機系では金属水酸化物の難燃剤やアンチモン系の難燃助剤を含有することができる。また、上記以外にも、銅害防止剤、老化防止剤、架橋助剤等、適宜含有してもよい。   The insulating layer 2 preferably has flame retardancy, for example, bromine or chlorine flame retardants for organic systems, metal hydroxide flame retardants and antimony flame retardant aids for inorganic systems. Can be contained. In addition to the above, a copper damage inhibitor, an anti-aging agent, a crosslinking aid and the like may be appropriately contained.

接着層4としては、樹脂主成分としてポリオレフィン系樹脂を含むことが好ましく、ポリエチレン系樹脂を含むことがより好ましく、変性ポリエチレン樹脂を含むことが最も好ましい。接着層4を構成する樹脂は非架橋性であっても架橋性であってもよい。
変性ポリエチレン樹脂としては、融点が100℃〜135℃の架橋または非架橋変性ポリエチレン樹脂から選択される1種の樹脂又は2種以上の樹脂の混合物が挙げられる。融点が120℃〜130℃の直鎖状低密度ポリエチレン樹脂(LLDPE)が特に好ましい。
上記の変性ポリエチレン樹脂は、接着層4を形成する樹脂成分100質量部中、30〜90質量部含まれていることが好ましい。
The adhesive layer 4 preferably includes a polyolefin-based resin as a resin main component, more preferably includes a polyethylene-based resin, and most preferably includes a modified polyethylene resin. The resin constituting the adhesive layer 4 may be non-crosslinkable or crosslinkable.
Examples of the modified polyethylene resin include one type of resin selected from crosslinked or non-crosslinked modified polyethylene resins having a melting point of 100 ° C. to 135 ° C., or a mixture of two or more types of resins. A linear low density polyethylene resin (LLDPE) having a melting point of 120 ° C. to 130 ° C. is particularly preferable.
The modified polyethylene resin is preferably contained in 30 to 90 parts by mass in 100 parts by mass of the resin component forming the adhesive layer 4.

また、接着層4には、柔軟性を向上させるために、α−オレフィン共重合体を含有することが好ましい。α−オレフィン共重合体としては、柔軟なものが好ましく、柔軟なエチレン系、プロピレン系、及びブテン−1系のポリオレフィン群等が挙げられる。柔軟なα−オレフィン共重合体を含有することにより、樹脂フィルムの反りを防ぐことができる。これにより樹脂フィルムが反って絶縁電線と隙間ができることがなく、樹脂フィルムを絶縁電線に密着させることができる。
上記のα−オレフィン共重合体は、接着層4を形成する樹脂成分100質量部中、15〜45質量部含まれていることが好ましい。
The adhesive layer 4 preferably contains an α-olefin copolymer in order to improve flexibility. The α-olefin copolymer is preferably a flexible one, and examples thereof include flexible ethylene-based, propylene-based, and butene-1-based polyolefin groups. By containing a flexible α-olefin copolymer, warping of the resin film can be prevented. Accordingly, the resin film is not warped and a gap is formed between the insulated wire and the resin film can be adhered to the insulated wire.
The α-olefin copolymer is preferably contained in 15 to 45 parts by mass in 100 parts by mass of the resin component forming the adhesive layer 4.

さらに、接着層4には、接着力を向上させるために無水酸変性低分子量ポリエチレン樹脂を含有することが好ましい。無水酸変性低分子量ポリエチレン樹脂としては、分子量が2万以下のものが好ましい。
上記の無水酸変性低分子量ポリエチレン樹脂は、接着層4を形成する樹脂成分100質量部中、5〜15質量部含まれていることが好ましい。
また、基材5としては、PET(ポリエチレンテレフタレート)等のポリエステルであることが好ましい。基材層5の厚さは10μm〜40μmである。
Furthermore, the adhesive layer 4 preferably contains an acid anhydride-modified low molecular weight polyethylene resin in order to improve the adhesive force. The acid-modified low molecular weight polyethylene resin preferably has a molecular weight of 20,000 or less.
The acid anhydride-modified low molecular weight polyethylene resin is preferably contained in 5 to 15 parts by mass in 100 parts by mass of the resin component forming the adhesive layer 4.
The substrate 5 is preferably a polyester such as PET (polyethylene terephthalate). The thickness of the base material layer 5 is 10 μm to 40 μm.

絶縁電線の絶縁層がポリエチレン系樹脂を主成分とするものである場合、接着層4において、特に、ベース樹脂を上記した変性ポリエチレン樹脂、α−オレフィン共重合体および無水酸変性低分子量ポリエチレン樹脂の3成分系とすることが好ましい。これにより、接着力と柔軟性を確保して樹脂フィルムを絶縁電線に密着させる効果を奏する。
接着層4の厚さは20μm〜80μmである。
In the case where the insulating layer of the insulated wire is mainly composed of a polyethylene-based resin, in the adhesive layer 4, in particular, the base resin is a modified polyethylene resin, an α-olefin copolymer and an acid-modified low molecular weight polyethylene resin. A three-component system is preferred. Thereby, there exists an effect which ensures adhesive force and a softness | flexibility, and makes the resin film contact | adhere to an insulated wire.
The thickness of the adhesive layer 4 is 20 μm to 80 μm.

また、接着層4は難燃性を有していることが望ましく、例えば、有機系では臭素系あるいは塩素系の難燃剤、無機系では金属水酸化物の難燃剤やアンチモン系の難燃助剤を含有することができる。接着層4中、接着層4を形成する樹脂成分100質量部に対して、難燃剤は50〜150質量部、難燃助剤は15〜50質量部含まれていることが好ましい。さらに接着層4には、酸化防止剤も含有してもよい。接着層4中、酸化防止剤は、接着層4を形成する樹脂成分100質量部に対して、0.5〜3質量部含まれることが好ましい。   The adhesive layer 4 preferably has flame retardancy, for example, bromine or chlorine flame retardants for organic systems, metal hydroxide flame retardants and antimony flame retardant aids for inorganic systems. Can be contained. In the adhesive layer 4, it is preferable that 50 to 150 parts by mass of the flame retardant and 15 to 50 parts by mass of the flame retardant aid are included with respect to 100 parts by mass of the resin component forming the adhesive layer 4. Furthermore, the adhesive layer 4 may also contain an antioxidant. In the adhesive layer 4, the antioxidant is preferably contained in an amount of 0.5 to 3 parts by mass with respect to 100 parts by mass of the resin component forming the adhesive layer 4.

本発明の平型絶縁電線10の絶縁層2および接着層4には、本発明の所望の効果を阻害しない限り、上記以外の添加剤を含有してもよい。   The insulating layer 2 and the adhesive layer 4 of the flat insulated wire 10 of the present invention may contain additives other than those described above as long as the desired effects of the present invention are not impaired.

平型絶縁電線10は、具体的な一例として、厚さが1.5mm前後で、絶縁層2の厚さが0.3mm程度、絶縁層2の外径が1.4mm程度である。絶縁層2の厚さは、所定の電気絶縁抵抗、耐電圧が得られる範囲で可能なかぎり薄肉で形成してもかまわない。また、中心導体1の配列ピッチは、導体径によるが接続される電気コネクタ、接続端子の配列ピッチに合わせることが望ましく、1.5mm程度であることが好ましい。さらに接着層4の厚さは45μm程度であり、基材層5は25μm程度である。   As a specific example, the flat insulated wire 10 has a thickness of about 1.5 mm, the thickness of the insulating layer 2 is about 0.3 mm, and the outer diameter of the insulating layer 2 is about 1.4 mm. The thickness of the insulating layer 2 may be as thin as possible within a range where predetermined electric insulation resistance and withstand voltage can be obtained. The arrangement pitch of the center conductors 1 is preferably adjusted to the arrangement pitch of the electrical connectors and connection terminals to be connected, depending on the conductor diameter, and is preferably about 1.5 mm. Furthermore, the thickness of the adhesive layer 4 is about 45 μm, and the base material layer 5 is about 25 μm.

平型絶縁電線10は、樹脂フィルム6を、複数本並列に配列された絶縁電線3の片面に有していても、両面に有していてもよい。本発明に係る平型絶縁電線10は、絶縁層2と接着層4の密着性が向上しているため、樹脂フィルム6を絶縁電線3の片側のみに配置した構成であっても所望の密着性を十分に得ることができる。   The flat insulated wire 10 may have the resin film 6 on one side of the insulated wires 3 arranged in parallel or on both sides. Since the flat insulated wire 10 according to the present invention has improved adhesion between the insulating layer 2 and the adhesive layer 4, even if the resin film 6 is arranged only on one side of the insulated wire 3, the desired adhesion is achieved. You can get enough.

以下、図1に示した平型絶縁電線10の製造方法を図面を参照しつつ説明する。
図2は、図1に示した平型絶縁電線10のラミネート工程の一例を示す概略斜視図である。
Hereinafter, the manufacturing method of the flat insulated wire 10 shown in FIG. 1 is demonstrated, referring drawings.
FIG. 2 is a schematic perspective view showing an example of a laminating process of the flat insulated wire 10 shown in FIG.

複数の架橋された絶縁電線3は、それぞれボビン21から巻き出され、ガイド22で所定のピッチで並列に配列された後、さらに矢印方向に搬送される。   The plurality of bridged insulated wires 3 are respectively unwound from the bobbin 21, arranged in parallel at a predetermined pitch by the guide 22, and further conveyed in the arrow direction.

搬送された前記絶縁電線3は、同様にロール23から巻き出された樹脂フィルム6(予め基材5上に接着層4が形成されている)と、一対のロールからなる加熱圧着ローラー24によって加熱圧着され、絶縁電線3に樹脂フィルム6がラミネートされた平型絶縁電線10が形成される。この時、樹脂フィルム6の接着層4と絶縁電線3とが接着されている。
本発明においては、加熱圧着ローラー24によるラミネート時間、温度、線速、ローラーを押し当てる際の圧力は、当業者が適宜設計しうる範囲で行うことが可能であるが、好ましくは、絶縁電線および樹脂フィルムのラインスピードを2〜3m/分、加熱圧着ローラーの温度を80〜100℃、ローラーを押し当てる圧力を0.4〜0.5MPaとする。樹脂フィルムを圧着する部分には70〜120℃の熱風を吹き付けてもよい。
加熱圧着ローラー24による加熱圧着工程の後に、加熱圧着後の平型絶縁電線10を冷却するための工程を設けてもよい。
得られた平型絶縁電線10は、巻き取りリール25に巻き取られる。
Similarly, the conveyed insulated wire 3 is heated by a resin film 6 unrolled from a roll 23 (adhesive layer 4 is previously formed on a base material 5) and a thermocompression roller 24 comprising a pair of rolls. A flat insulated wire 10 is formed by crimping and laminating a resin film 6 on the insulated wire 3. At this time, the adhesive layer 4 of the resin film 6 and the insulated wire 3 are bonded.
In the present invention, the laminating time, the temperature, the linear velocity, and the pressure when pressing the roller by the thermocompression-bonding roller 24 can be performed within a range that can be appropriately designed by those skilled in the art. The line speed of the resin film is 2 to 3 m / min, the temperature of the thermocompression roller is 80 to 100 ° C., and the pressure for pressing the roller is 0.4 to 0.5 MPa. You may spray 70-120 degreeC hot air on the part which crimps | bonds a resin film.
You may provide the process for cooling the flat insulated wire 10 after thermocompression bonding after the thermocompression-bonding process by the thermocompression-bonding roller 24.
The obtained flat insulated wire 10 is taken up on a take-up reel 25.

以下、実施例および比較例を挙げて本発明を詳細に説明するが、これらは本発明を限定するものではない。   EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, these do not limit this invention.

<平型絶縁電線(1)の作成>
(接着層4の組成)
ベース樹脂 変性ポリエチレン 60質量部
α−オレフィン共重合体(柔軟なエチレン系、プロピレン系、およびブテン−1系のポリオレフィン群) 30質量部
無水酸変性低分子量ポリエチレン 10質量部
臭素系燃焼剤 70質量部
難燃助剤 35質量部
酸化防止剤 1質量部
<Creation of flat insulated wire (1)>
(Composition of adhesive layer 4)
60 parts by mass of base resin modified polyethylene
α-olefin copolymer (flexible ethylene group, propylene group, and butene-1 group polyolefin group) 30 parts by mass
Acid anhydride-modified low molecular weight polyethylene 10 parts by weight Bromine-based combustion agent 70 parts by weight Flame retardant aid 35 parts by weight Antioxidant 1 part by weight

樹脂フィルム6は、PET基材5(厚さ25μm)に上記組成の接着層4(45μm)を塗布することにより形成した。接着層4の組成物は上記の通りである。   The resin film 6 was formed by applying the adhesive layer 4 (45 μm) having the above composition to the PET substrate 5 (thickness 25 μm). The composition of the adhesive layer 4 is as described above.

(絶縁層2の組成)
高密度ポリエチレン 70質量部
EVA(エチレン酢酸ビニル樹脂) 30重量部
難燃剤(三酸化アンチモンおよび臭素系難燃剤) 40重量部
銅害防止剤、老化防止剤、架橋助剤等 10重量部
(Composition of insulating layer 2)
High-density polyethylene 70 parts by mass EVA (ethylene vinyl acetate resin) 30 parts by weight Flame retardant (antimony trioxide and bromine-based flame retardant) 40 parts by weight Copper damage inhibitor, anti-aging agent, crosslinking aid, etc. 10 parts by weight

絶縁電線3は、19/0.16(芯数/素線径(mm))の軟銅撚線に、各種添加剤を含む樹脂組成物を押出被覆した後、γ線によって絶縁層を照射架橋することにより形成した。得られた絶縁電線3における絶縁層2の組成は上記の通りである。   Insulated wire 3 is obtained by extrusion coating a resin composition containing various additives on a 19 / 0.16 (number of cores / elementary wire diameter (mm)) annealed copper wire, and then irradiating and crosslinking the insulating layer with γ rays. Was formed. The composition of the insulating layer 2 in the obtained insulated wire 3 is as described above.

そして、ラインスピードを2.5m/分として絶縁電線3を4本並列に配置した後、前記絶縁電線3に前記樹脂フィルム6を接着層4を有する側から押し当て、さらに前記絶縁電線3と前記樹脂フィルム6とを圧力0.43±0.1MPaで押し当てた状態で、加熱圧着ロールを100℃に加熱し、さらに120℃の熱風を吹き付けて加熱して接着層4を溶かして電線に絶縁フィルムを圧着して、図1に示す平型絶縁電線10を作成した。
得られた平型絶縁電線10に下記の試験を行ったところ、優れた電線特性を有していることが判った。また、得られた平型絶縁電線10は樹脂フィルム6を片面のみに配置したのみでも密着性が良好であった。
And after arrange | positioning four insulated wires 3 in parallel with a line speed of 2.5 m / min, the said resin film 6 is pressed against the said insulated wire 3 from the side which has the contact bonding layer 4, and also the said insulated wire 3 and the said In a state where the resin film 6 is pressed at a pressure of 0.43 ± 0.1 MPa, the thermocompression-bonding roll is heated to 100 ° C., and further heated by blowing 120 ° C. hot air to melt the adhesive layer 4 and insulate the electric wire. The film was crimped | bonded and the flat type insulated wire 10 shown in FIG. 1 was created.
When the following test was done to the obtained flat insulated wire 10, it turned out that it has the outstanding electric wire characteristic. Further, the obtained flat insulated wire 10 had good adhesion even when the resin film 6 was disposed only on one side.

(密着性試験)
90度ピール試験を行ったところ200g以上であり、良好な密着性であった。尚、上記の測定値は、平型絶縁電線の樹脂フィルムを電線が一本ずつになるように切断し、その状態で電線をフィルムから引き剥がす力を測定することにより得られたものである。
(Adhesion test)
When the 90 degree peel test was performed, it was 200 g or more, and good adhesion was obtained. In addition, said measured value is obtained by cutting the resin film of a flat insulated wire so that an electric wire may become one by one, and measuring the force which peels off an electric wire from a film in the state.

(耐油性試験)
JIS C 3406(1993年)の6.5による試験を行った。その結果、1000V(AC)の電圧に1分間耐えることができた。
(Oil resistance test)
The test according to 6.5 of JIS C 3406 (1993) was performed. As a result, it was able to withstand a voltage of 1000 V (AC) for 1 minute.

(耐熱性試験)
・耐熱性試験I
適当な長さの試料を150℃で240時間加熱し、室温冷却後、外径12.5mmの円筒に3ターン巻きつけた。次いで、1000V(AC)の電圧を印加して絶縁体表面の亀裂の有無をしらべたところ、1分間亀裂を生じることは無かった。
・耐熱性試験II
適当な長さの試料を電線外径に等しい径の円筒に6ターン巻き、200℃で30分間加熱した。室温冷却後、絶縁体表面の状態を調べたところ、絶縁体に亀裂および溶融は発生していなかった。
(Heat resistance test)
・ Heat resistance test I
A sample having an appropriate length was heated at 150 ° C. for 240 hours, cooled to room temperature, and then wound around a cylinder having an outer diameter of 12.5 mm for 3 turns. Next, when a voltage of 1000 V (AC) was applied to check the presence or absence of cracks on the surface of the insulator, no cracks were generated for 1 minute.
・ Heat resistance test II
A sample having an appropriate length was wound around a cylinder having a diameter equal to the outer diameter of the wire for 6 turns and heated at 200 ° C. for 30 minutes. When the state of the insulator surface was examined after cooling to room temperature, the insulator was not cracked or melted.

(低熱性試験)
適当な長さの試料をとり、−45℃の冷却槽内で3時間冷却した後、冷却槽内で外径75mmの円筒に3ターン巻き付けた。次いで巻き戻した後、冷却槽から取り出し、JIS C 3406(1993年)の6.3(2)による測定を行った。その結果、1000V(AC)の電圧に1分間耐えることができた。
(Low heat test)
A sample having an appropriate length was taken, cooled in a −45 ° C. cooling bath for 3 hours, and then wound around a cylinder having an outer diameter of 75 mm for 3 turns in the cooling bath. Subsequently, after rewinding, it took out from the cooling tank and measured by 6.3 (2) of JIS C 3406 (1993). As a result, it was able to withstand a voltage of 1000 V (AC) for 1 minute.

(難燃性試験)
難燃試験は、JASO D608−92の5.9(1992年)により行った。炎を10秒当て、炎を取り去った後、30秒以内に消える結果が得られた。
(Flame retardancy test)
The flame retardant test was conducted according to JASO D608-92 5.9 (1992). After applying the flame for 10 seconds and removing the flame, the result disappeared within 30 seconds.

<平型絶縁電線(2)の作成>
上記で作成した平型絶縁電線において、接着層4の樹脂主成分をポリエステル系樹脂とした以外は同様の方法により、比較例の平型絶縁電線を作成したところ、接着層4と絶縁層2は接着しなかった。
<Creation of flat insulated wire (2)>
In the flat insulated wire created above, a flat insulated wire of a comparative example was created by the same method except that the resin main component of the adhesive layer 4 was a polyester resin. The adhesive layer 4 and the insulating layer 2 were It did not adhere.

本発明の実施態様にかかる平型絶縁電線の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the flat insulated wire concerning the embodiment of this invention. 本発明の実施態様にかかる平型絶縁電線の製造方法の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of the manufacturing method of the flat insulated wire concerning the embodiment of this invention. 従来の平型絶縁電線の概略斜視図である。It is a schematic perspective view of the conventional flat insulated wire.

符号の説明Explanation of symbols

1、31.中心導体、 2、32.絶縁層、 3、33、35.絶縁電線、 34.ブリッジ部 4.接着層 5.基材層、 6.樹脂フィルム、 10、30.平型絶縁電線、 21.ボビン、 22.ガイド、 23.巻き出しローラー、 24.成型ローラー、 25.巻取りリール   1, 31. Central conductor, 2, 32. Insulating layer 3, 33, 35. Insulated wires, 34. Bridge part 4. 4. Adhesive layer 5. base material layer Resin film 10, 30. Flat insulated wire, 21. Bobbin, 22. Guide, 23. Unwinding roller, 24. Molding roller, 25. Take-up reel

Claims (5)

並列に配置した複数本の絶縁電線が、接着層を含む樹脂フィルムに接着されてなる平型絶縁電線であって、
前記絶縁電線は、架橋されたポリオレフィン系樹脂を主成分とする絶縁層で中心導体を被覆してなり、
前記接着層は、前記絶縁層における樹脂の主成分と同系樹脂を主成分とすることを特徴とする平型絶縁電線。
A plurality of insulated wires arranged in parallel are flat insulated wires bonded to a resin film including an adhesive layer,
The insulated wire is formed by covering a central conductor with an insulating layer mainly composed of a cross-linked polyolefin-based resin,
2. The flat insulated wire according to claim 1, wherein the adhesive layer is mainly composed of a resin similar to a main component of the resin in the insulating layer.
前記絶縁層における樹脂の主成分が架橋ポリエチレン系樹脂であり、前記接着層の主成分がポリエチレン系樹脂であることを特徴とする請求項1記載の平型絶縁電線。   The flat insulated wire according to claim 1, wherein a main component of the resin in the insulating layer is a cross-linked polyethylene resin, and a main component of the adhesive layer is a polyethylene resin. 前記接着層が、変性ポリエチレン樹脂、α−オレフィン共重合体、無水酸変性低分子量ポリエチレン樹脂からなるベース樹脂に、難燃剤、難燃助剤および酸化防止剤を配合してなることを特徴とする請求項1または2記載の平型絶縁電線。   The adhesive layer is formed by blending a flame retardant, a flame retardant aid and an antioxidant with a base resin comprising a modified polyethylene resin, an α-olefin copolymer, and an acid-modified low molecular weight polyethylene resin. The flat insulated wire according to claim 1 or 2. 前記樹脂フィルムを、複数本並列に配列された絶縁電線の片面のみに有することを特徴とする請求項1〜3のいずれかに記載の平型絶縁電線。   The flat insulated wire according to any one of claims 1 to 3, wherein the resin film is provided only on one side of insulated wires arranged in parallel. 並列に配置した複数本の絶縁電線が、接着層を含む樹脂フィルムに接着されてなる平型絶縁電線の製造方法であって、
前記絶縁電線は、架橋されたポリオレフィン系樹脂を主成分とする絶縁層で中心導体を被覆してなり、
前記接着層は、前記絶縁層における樹脂の主成分と同系樹脂を主成分とし、
前記絶縁電線を複数本並列に配置する工程と、
前記絶縁電線に前記樹脂フィルムを前記接着層を有する側から押し当てる工程と、
前記絶縁電線と前記樹脂フィルムとを押し当てた状態で加熱する工程とを含むことを特徴とする平型絶縁電線の製造方法。
A plurality of insulated electric wires arranged in parallel is a method for producing a flat insulated electric wire bonded to a resin film including an adhesive layer,
The insulated wire is formed by covering a central conductor with an insulating layer mainly composed of a cross-linked polyolefin-based resin,
The adhesive layer is mainly composed of the same resin as the main component of the resin in the insulating layer,
Arranging a plurality of the insulated wires in parallel;
Pressing the resin film against the insulated wire from the side having the adhesive layer;
And a step of heating in a state where the insulated wire and the resin film are pressed against each other.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179607U (en) * 1987-05-13 1988-11-21
JPH01113914U (en) * 1988-01-27 1989-07-31
JPH028050A (en) * 1988-06-28 1990-01-11 Mitsui Petrochem Ind Ltd Laminate of oriented polypropylene films and use thereof
JPH08199127A (en) * 1995-01-30 1996-08-06 Nitto Denko Corp Tape for knotting cable
JPH09300539A (en) * 1996-05-17 1997-11-25 Teijin Ltd Insulating tape
JPH1057526A (en) * 1996-08-23 1998-03-03 Sumitomo Rubber Ind Ltd Golf ball
JP2001279194A (en) * 2000-03-31 2001-10-10 Sumitomo Rubber Ind Ltd Bonding method and tennis racket using the bonding method
JP2002313151A (en) * 2001-04-19 2002-10-25 Dainippon Printing Co Ltd Laminated body for flat cable

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179607U (en) * 1987-05-13 1988-11-21
JPH01113914U (en) * 1988-01-27 1989-07-31
JPH028050A (en) * 1988-06-28 1990-01-11 Mitsui Petrochem Ind Ltd Laminate of oriented polypropylene films and use thereof
JPH08199127A (en) * 1995-01-30 1996-08-06 Nitto Denko Corp Tape for knotting cable
JPH09300539A (en) * 1996-05-17 1997-11-25 Teijin Ltd Insulating tape
JPH1057526A (en) * 1996-08-23 1998-03-03 Sumitomo Rubber Ind Ltd Golf ball
JP2001279194A (en) * 2000-03-31 2001-10-10 Sumitomo Rubber Ind Ltd Bonding method and tennis racket using the bonding method
JP2002313151A (en) * 2001-04-19 2002-10-25 Dainippon Printing Co Ltd Laminated body for flat cable

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