JP3472986B2 - Flat cable - Google Patents
Flat cableInfo
- Publication number
- JP3472986B2 JP3472986B2 JP24421592A JP24421592A JP3472986B2 JP 3472986 B2 JP3472986 B2 JP 3472986B2 JP 24421592 A JP24421592 A JP 24421592A JP 24421592 A JP24421592 A JP 24421592A JP 3472986 B2 JP3472986 B2 JP 3472986B2
- Authority
- JP
- Japan
- Prior art keywords
- light transmittance
- parallel light
- insulating base
- adhesive layer
- base material
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 18
- 238000002834 transmittance Methods 0.000 claims description 18
- 239000012790 adhesive layer Substances 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 9
- 229920006351 engineering plastic Polymers 0.000 claims description 8
- 239000002985 plastic film Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000002861 polymer material Substances 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 8
- 239000003063 flame retardant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920001634 Copolyester Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006162 poly(etherimide sulfone) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子機器の配線等に使
用されるフラットケーブルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat cable used for wiring electronic equipment.
【０００２】[0002]
【従来の技術】ビデオ機器，音響機器，ＯＡ機器，コン
ピュータ機器等の内部配線用の電線として、多心平型フ
ラットケーブルが使用されている。フラットケーブル
は、一般に、２枚の絶縁基材の間に複数本の導体を挟ん
で、絶縁基材同士を融着，一体化することにより製造さ
れている。絶縁基材としては、機械的特性，電気的特性
の優れた２軸延伸ポリエチレンテレフタレート（ＰＥ
Ｔ）フィルム層と、それを熱融着するための接着剤層の
２層構造のものが広く用いられてきた。接着剤層のベー
ス樹脂には、ポリエチレン（ＰＥ），ポリ塩化ビニル
（ＰＶＣ）や熱可塑性飽和共重合ポリエステル，熱硬化
性ポリエステルや熱硬化性ポリウレタン等が用いられる
ことが多い。2. Description of the Related Art A multi-core flat type flat cable is used as an electric wire for internal wiring of video equipment, audio equipment, office automation equipment, computer equipment and the like. A flat cable is generally manufactured by sandwiching a plurality of conductors between two insulating base materials and fusing and integrating the insulating base materials. As an insulating base material, biaxially stretched polyethylene terephthalate (PE), which has excellent mechanical and electrical properties
A two-layer structure having a T) film layer and an adhesive layer for heat-sealing the film layer has been widely used. Polyethylene (PE), polyvinyl chloride (PVC), thermoplastic saturated copolyester, thermosetting polyester, thermosetting polyurethane, etc. are often used as the base resin of the adhesive layer.
【０００３】このようなフラットケーブルは、コネクタ
との挿脱が行われるため、導体間ピッチやマージン幅に
対して要求される精度が非常に厳しい場合が多い。導体
間ピッチやマージン幅は、一般にラミネート工程で決ま
ってしまうため、これらに関する検査を製品製造後に行
うと、ラミネート工程で一旦不良品を作ればそのロット
の大部分が不良品になってしまうという問題があった。
従って、これらの検査はラミネート工程中に自動で行う
ことが好ましく、もし規格内に入らない部分ができて
も、その都度修正できるようにすることが好ましい。こ
のような観点から、光学機器を使った検査方法が提案さ
れている。Since such a flat cable is inserted into and removed from the connector, the precision required for the pitch between conductors and the margin width is often very severe. Since the pitch between conductors and the margin width are generally determined in the laminating process, if inspections related to these are performed after the product is manufactured, once a defective product is made in the laminating process, most of the lot becomes defective. was there.
Therefore, these inspections are preferably performed automatically during the laminating process, and if there is a portion that does not fall within the specifications, it is preferable to be able to correct it each time. From such a viewpoint, an inspection method using an optical device has been proposed.
【０００４】この検査方法は、スリット後のテープ電線
の一方から光を当て、他方側で透過光の輝度分布を測定
するというものであるが、現在フラットケーブルに使用
されている絶縁基材のうち難燃化されているものは難燃
剤を多量に含む。このような絶縁基材は、殆ど光を透過
しないため、上記検出方法をそのまま適用しても有効な
検査はできない（導体位置を検出できない）。そこで、
現状では、絶縁基材に予め端末剥離部分として窓を設
け、その部分にある程度透過性のある補強テープを貼着
し、ここに光を当てることで検査を行っている。This inspection method is one in which light is applied from one of the tape wires after slitting and the luminance distribution of the transmitted light is measured on the other side. Among the insulating base materials currently used for flat cables, The flame retardant contains a large amount of flame retardant. Since such an insulating base material hardly transmits light, an effective inspection cannot be performed (the conductor position cannot be detected) even if the above detection method is applied as it is. Therefore,
At present, the insulating base material is provided with a window as a terminal peeling portion in advance, a reinforcing tape having a certain degree of transparency is attached to the portion, and light is applied to the portion for inspection.
【０００５】[0005]
【発明が解決しようとする課題】しかし、このような方
法では窓を設けなければ検査ができず、又、窓部部分で
しか検査ができないという問題があった。従って、本発
明は、特に端末剥離部分がなくても検査が可能であり、
かつ絶縁被覆がなされている任意の部分で検査が可能な
フラットケーブルを提供することを目的とする。However, such a method has a problem that the inspection cannot be performed unless the window is provided and only the window portion can be inspected. Therefore, the present invention, it is possible to inspect even without the terminal peeling portion,
Moreover, it is an object of the present invention to provide a flat cable that can be inspected at an arbitrary portion having an insulating coating.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明フラットケーブルは、使用する絶縁基材の
平行光線透過率がある一定の範囲内のとき、上記課題を
解決できるという知見に基づくもので、同透過率が２０
％以上７５％以下であることを特徴とするものである。In order to achieve the above object, the flat cable of the present invention can solve the above problems when the parallel light transmittance of the insulating base material used is within a certain range. The transmittance is 20
% Or more and 75% or less.
【０００７】ここで、絶縁基材の平行光線透過率が２０
％未満であった場合には、十分に光が透過しないため、
導体位置を検出することができず、導体間ピッチの測
定，制御も不可能になる。逆に７５％を越えると、光が
透過し過ぎるため絶縁フィルムを検出し難くなり、マー
ジン幅の測定，制御ができなくなる。Here, the parallel light transmittance of the insulating substrate is 20.
If it is less than%, light is not sufficiently transmitted,
The conductor position cannot be detected, and the pitch between conductors cannot be measured or controlled. On the other hand, if it exceeds 75%, it becomes difficult to detect the insulating film because light is transmitted too much, and the margin width cannot be measured and controlled.
【０００８】絶縁基材の平行光線透過率を上記範囲内に
収めるための具体的手段として、
絶縁基材が、限界酸素指数３５以上であり、厚みが１
０〜８０μｍで、平行光線透過率が８０％以上のエンジ
ニアリングプラスチックフィルム（以下エンプラフィル
ムという）からなる絶縁フィルム層と、平行光線透過率
が３０〜７５％の範囲にある高分子材料からなる接着剤
層とから構成される複合フィルムを用いることと、
絶縁基材が、限界酸素指数３５以上であり、厚みが１
０〜８０μｍで、平行光線透過率が３０〜８０％のエン
ジニアリングプラスチックフィルムからなる絶縁フィル
ム層と、平行光線透過率が６０％以上の高分子材料から
なる接着剤層とから構成される複合フィルムを用いるこ
とが挙げられる。As a specific means for keeping the parallel light transmittance of the insulating base material within the above range, the insulating base material has a limiting oxygen index of 35 or more and a thickness of 1
An insulating film layer composed of an engineering plastic film (hereinafter referred to as engineering plastic film) having a parallel light transmittance of 0 to 80 μm and 80% or more, and an adhesive composed of a polymer material having a parallel light transmittance of 30 to 75%. Use of a composite film composed of a layer, and the insulating substrate has a limiting oxygen index of 35 or more and a thickness of 1
A composite film composed of an insulating film layer made of an engineering plastic film having a parallel light transmittance of 0 to 80 μm and a light transmittance of 30 to 80%, and an adhesive layer made of a polymer material having a parallel light transmittance of 60% or more. It can be used.
【０００９】ここで、限界酸素指数が３５以上のエンプ
ラフィルムとしては、ポリイミド（ＰＩ），全芳香族ポ
リアミド（アラミド），ポリパラバン酸（ＰＰＡ），ポ
リエーテルエーテルケトン，ポリエーテルイミド，ポリ
エーテルサルフォン（ＰＥＳ），ポリフェニレンスルフ
ィド等を挙げることができるが、ＰＥＴ等を難燃化処理
したものでもよい。又、エンプラフィルムの厚みが１０
μｍ未満では機械的強度が十分でなく、８０μｍを越え
ると柔軟性に乏しくなり好ましくない。The engineering plastic film having a limiting oxygen index of 35 or more includes polyimide (PI), wholly aromatic polyamide (aramid), polyparabanic acid (PPA), polyetheretherketone, polyetherimide, and polyethersulfone. Examples thereof include (PES) and polyphenylene sulfide, but PET or the like which has been subjected to a flame-retardant treatment may also be used. Moreover, the thickness of the engineering plastic film is 10
If it is less than μm, the mechanical strength is not sufficient, and if it exceeds 80 μm, the flexibility becomes poor, which is not preferable.
【００１０】さらに、ＵＬ（Underwriters Laboratorie
s Inc.）規格に規定されている垂直難燃試験（ＶＷ−
１）に合格するには、接着剤層の樹脂組成物は、透明性
を損なわないように難燃化されていることが好ましい。
その手段としては、ハロゲン化ビスフェノールＡを接着
剤層に含有せしめることが挙げられ、その量はベースポ
リマー１００重量部に対して１０〜５０重量部とするこ
とが好ましい。In addition, UL (Underwriters Laboratorie
vertical flame retardancy test (VW-
In order to pass 1), the resin composition of the adhesive layer is preferably flame-retarded so as not to impair transparency.
As the means, it is possible to include halogenated bisphenol A in the adhesive layer, and the amount thereof is preferably 10 to 50 parts by weight with respect to 100 parts by weight of the base polymer.
【００１１】接着剤層を構成するポリマーとしては、熱
可塑性であっても熱硬化性であってもよい。熱可塑性樹
脂としては、例えば、ポリエチレン、エチレン・ビニル
アセテート共重合体、エチレン・エチルアクリレート共
重合体、これらに官能基をグラフト共重合させたポリオ
レフィン系ホットメルト樹脂や、ポリ塩化ビニル等が挙
げられる。又、熱硬化性樹脂としては、エポキシ，ウレ
タン，不飽和ポリエステルフェノール樹脂等が挙げられ
る。尚、必要に応じて、酸化防止剤，難燃化剤，架橋
剤，架橋助剤等を適宜添加してもよい。The polymer constituting the adhesive layer may be thermoplastic or thermosetting. Examples of the thermoplastic resin include polyethylene, an ethylene / vinyl acetate copolymer, an ethylene / ethyl acrylate copolymer, a polyolefin hot melt resin obtained by graft-copolymerizing a functional group to these, polyvinyl chloride, and the like. . Further, examples of the thermosetting resin include epoxy, urethane, unsaturated polyester phenol resin and the like. If necessary, an antioxidant, a flame retardant, a cross-linking agent, a cross-linking aid and the like may be appropriately added.
【００１２】この接着剤層の厚みは２０〜１００μｍの
範囲にあることが望ましい。２０μｍ未満では導体の埋
まり性が十分得られず、１００μｍを越えると難燃性と
透明性の両立が困難となる。The thickness of this adhesive layer is preferably in the range of 20 to 100 μm. If it is less than 20 μm, the conductor cannot be sufficiently filled, and if it exceeds 100 μm, it becomes difficult to achieve both flame retardancy and transparency.
【００１３】[0013]
【実施例】以下、実施例及び比較例を挙げて本発明を説
明する。先ず、次のような手順でフラットケーブルのサ
ンプルを作製した。表１に示す材料を用いて、エンプラ
フィルム上に、接着剤層として用いる樹脂組成物を５０
μｍの厚みで押出コーティングし、絶縁基材を作製し
た。次に、得られた絶縁基材の接着剤層上に１ｍｍ幅×
０．５ｍｍ厚の軟銅導体を０．５ｍｍ間隔で１０本並
べ、この上に、もう１枚の絶縁フィルムの接着剤層が対
向するように配置した後、これを熱圧着してサンプルを
得た。EXAMPLES The present invention will be described below with reference to examples and comparative examples. First, a flat cable sample was prepared by the following procedure. Using the materials shown in Table 1, a resin composition used as an adhesive layer on an engineering plastic film was used.
Extrusion coating was performed to a thickness of μm to produce an insulating substrate. Next, 1 mm width x on the adhesive layer of the obtained insulating base material
Ten 0.5 mm thick annealed copper conductors were arranged at 0.5 mm intervals, another adhesive film of the insulating film was placed on top of this, and then thermocompression bonded to obtain a sample. .
【００１４】そして、得られたサンプルについて、導体
間ピッチ，マージン幅の測定及び難燃試験を行った。導
体間ピッチやマージン幅の測定は、先に述べたように、
サンプルの一方から光を当て、他方側で透過光の輝度分
布を測定することで行い、制御の可否を判定した。難燃
試験はＵＬ規格に規定されている垂直難燃試験（ＶＷ−
１）により行った。尚、絶縁基材の平行光線透過率は、
JIS K6714-58に準じて測定した。これらの評価結果も併
せて表１に示す。Then, the obtained sample was subjected to the measurement of the pitch between conductors, the margin width, and the flame retardant test. As described above, the measurement of the pitch between conductors and the margin width is as follows.
Whether or not control was possible was determined by shining light from one side of the sample and measuring the luminance distribution of the transmitted light on the other side. The flame retardant test is a vertical flame retardant test (VW-
1). The parallel light transmittance of the insulating substrate is
It was measured according to JIS K6714-58. The results of these evaluations are also shown in Table 1.
【００１５】[0015]
【表１】 [Table 1]
【００１６】同表に示すように、実施例１〜７はいずれ
も平行光線透過率が２０〜７５％の範囲にあり、導体間
ピッチ，マージン幅の測定が可能であった。但し、実施
例１は接着剤層に難燃剤を添加しなかったのでＶＷ−１
試験には不合格となった。一方、比較例１は絶縁基材の
平行光線透過率が８０％で、光を透過し過ぎるために絶
縁フィルムを検出することができず、マージン幅の測定
を行うことができなかった。As shown in the table, in Examples 1 to 7, the parallel light transmittance was in the range of 20 to 75%, and the pitch between conductors and the margin width could be measured. However, since the flame retardant was not added to the adhesive layer in Example 1, VW-1
I failed the test. On the other hand, in Comparative Example 1, the parallel light transmittance of the insulating base material was 80%, and since the light was transmitted too much, the insulating film could not be detected and the margin width could not be measured.
【００１７】[0017]
【発明の効果】以上説明したように、本発明は、絶縁基
材の平行光線透過率を２０〜７５％に限定することで、
ラミネート工程中に、絶縁被覆がなされている任意の部
分で導体間ピッチやマージン幅を自動検査できるため、
これらの精度が高いフラットケーブルを得ることができ
る。As described above, according to the present invention, by limiting the parallel light transmittance of the insulating base material to 20 to 75%,
During the lamination process, it is possible to automatically inspect the pitch between conductors and the margin width at any part where the insulation coating is made,
It is possible to obtain a flat cable with high accuracy.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−194209（ＪＰ，Ａ) 特開 平２−183917（ＪＰ，Ａ) 特開 昭61−133514（ＪＰ，Ａ) 特開 平２−250210（ＪＰ，Ａ) 特開 昭64−31852（ＪＰ，Ａ) 特開 平１−234457（ＪＰ，Ａ) 実開 昭62−37121（ＪＰ，Ｕ) 実開 昭62−109314（ＪＰ，Ｕ) 実開 平１−113916（ＪＰ，Ｕ) 実開 平１−113917（ＪＰ，Ｕ) 実開 平１−127123（ＪＰ，Ｕ) 実開 平１−160622（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 7/08 H01B 7/29 H01B 13/00 525 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-194209 (JP, A) JP-A-2-183917 (JP, A) JP-A-61-133514 (JP, A) JP-A-2- 250210 (JP, A) JP 64-31852 (JP, A) JP 1-234457 (JP, A) Actually opened 62-37121 (JP, U) Actually opened 62-109314 (JP, U) Actual development 1-113916 (JP, U) Actual development 1-113917 (JP, U) Actual development 1-127123 (JP, U) Actual development 1-160622 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H01B 7/08 H01B 7/29 H01B 13/00 525
Claims (3)
み、融着してなるフラットケーブルであって、前記絶縁
基材は、絶縁フィルム層と接着剤層とから構成され、前
記接着剤層は、ハロゲン化ビスフェノールＡを含有して
おり、絶縁基材の平行光線透過率が２０％以上７５％以
下であることを特徴とするフラットケーブル。1. A flat cable in which a plurality of conductors are sandwiched between two insulating base materials and fused together, wherein the insulating base material comprises an insulating film layer and an adhesive layer.
The adhesive layer contains halogenated bisphenol A.
And the parallel light transmittance of the insulating base material is 20% or more and 75% or less.
り、厚みが１０〜８０μｍで、平行光線透過率が８０％
以上のエンジニアリングプラスチックフィルムからなる
絶縁フィルム層と、平行光線透過率が３０〜７５％の高
分子材料からなる接着剤層とから構成される複合フィル
ムであることを特徴とする請求項１記載のフラットケー
ブル。2. The insulating base material has a limiting oxygen index of 35 or more, a thickness of 10 to 80 μm, and a parallel light transmittance of 80%.
A flat film according to claim 1, which is a composite film comprising the insulating film layer made of the engineering plastic film and an adhesive layer made of a polymer material having a parallel light transmittance of 30 to 75%. cable.
り、厚みが１０〜８０μｍで、平行光線透過率が３０〜
８０％のエンジニアリングプラスチックフィルムからな
る絶縁フィルム層と、平行光線透過率が６０％以上の高
分子材料からなる接着剤層とから構成される複合フィル
ムであることを特徴とする請求項１記載のフラットケー
ブル。3. The insulating base material has a limiting oxygen index of 35 or more, a thickness of 10 to 80 μm, and a parallel light transmittance of 30 to.
2. The flat film according to claim 1, which is a composite film composed of an insulating film layer made of an engineering plastic film of 80% and an adhesive layer made of a polymer material having a parallel light transmittance of 60% or more. cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24421592A JP3472986B2 (en) | 1992-08-19 | 1992-08-19 | Flat cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24421592A JP3472986B2 (en) | 1992-08-19 | 1992-08-19 | Flat cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0668716A JPH0668716A (en) | 1994-03-11 |
| JP3472986B2 true JP3472986B2 (en) | 2003-12-02 |
Family
ID=17115464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24421592A Expired - Fee Related JP3472986B2 (en) | 1992-08-19 | 1992-08-19 | Flat cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3472986B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5221220B2 (en) * | 2008-06-23 | 2013-06-26 | 日立電線株式会社 | Flat cable |
| JP5840765B2 (en) * | 2012-03-30 | 2016-01-06 | 東京特殊電線株式会社 | Laminate inspection method, laminate inspection apparatus, and laminate manufacturing apparatus |
-
1992
- 1992-08-19 JP JP24421592A patent/JP3472986B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0668716A (en) | 1994-03-11 |
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