JP7218049B2 - Electrode connection structure for conductive knitted fabric and electrode connection method for conductive knitted fabric - Google Patents

Electrode connection structure for conductive knitted fabric and electrode connection method for conductive knitted fabric Download PDF

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JP7218049B2
JP7218049B2 JP2018128813A JP2018128813A JP7218049B2 JP 7218049 B2 JP7218049 B2 JP 7218049B2 JP 2018128813 A JP2018128813 A JP 2018128813A JP 2018128813 A JP2018128813 A JP 2018128813A JP 7218049 B2 JP7218049 B2 JP 7218049B2
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大策 山本
秀樹 田中
耕右 上田
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Gunze Ltd
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Description

本発明は、絶縁糸で編成される地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地と外部電極端子とを電気的に接続する導電性編地の電極接続構造及び導電性編地の電極接続方法に関する。 The present invention electrically connects an external electrode terminal and a conductive knitted fabric in which a conductive strip portion is formed by a conductive thread composed of a metal thread or a metal film thread woven into a ground structure knitted with an insulating thread. The present invention relates to an electrode connection structure of a conductive knitted fabric to be connected and an electrode connection method of a conductive knitted fabric.

近年、絶縁糸で編成された地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地が介護やウェアラブルデバイスなど複数の用途として注目されている。 In recent years, conductive knitted fabrics, in which conductive strips are formed by conductive yarns composed of metal yarns or metal film yarns woven into a ground structure knitted with insulating yarns, have attracted attention for multiple applications such as nursing care and wearable devices. It is

特許文献１には、着用時に体表面の所定位置に簡単に配置して、その着脱時の伸縮作用にもよく追随させながら低周波治療や生体電気信号の取得に用いることができる電極を具備させた弾性着衣が提案されている。 In Patent Document 1, an electrode is provided that can be easily placed at a predetermined position on the body surface when worn, and can be used for low-frequency therapy and bioelectrical signal acquisition while following the expansion and contraction action when the device is put on and taken off. Compression garments have been proposed.

弾性繊維を介して着圧の生成を自在とした弾性布地における少なくとも以上の領域に、その着用時に体表面と接触する裏面側への表出量を表面側への表出量より多くして編み込んだ導電繊維により面状導電層を形成し、該面状導電層の表面側の適位置に接続端子を設置して電極を形成し、該電極を低周波治療のための刺激電極や生体電気信号を取得するための記録電極として使用できるように構成されている。 In at least the above regions of the elastic fabric that can freely generate pressure through the elastic fibers, the amount of exposure to the back side that contacts the body surface when worn is woven so that the amount of exposure to the front side is larger than that to the front side. A planar conductive layer is formed from conductive fibers, a connection terminal is installed at an appropriate position on the surface side of the planar conductive layer to form an electrode, and the electrode is used as a stimulating electrode for low-frequency therapy or a bioelectric signal. It is configured so that it can be used as a recording electrode to acquire .

特許文献２には、ある素材の糸であって、湿度の影響を受けて電気特性が変化する糸を少なくとも１本含むメリヤス生地を備え、間隔を空けて配置された少なくとも２個の導電性電極を有する組込型の湿度センサを備えて、前記導電性電極の間には、前記メリヤス生地の編目の行または列が配置され、前記導電性の電極のそれぞれは、少なくとも１本の導電性の糸を含み、前記導電性の糸は、前記メリヤス生地に編み込まれ、外部からアクセス可能な電気接続手段に電気的に接続されるメリヤス織物が提案されている。 Patent Document 2 discloses at least two spaced-apart conductive electrodes comprising a knitted fabric comprising at least one yarn of a material whose electrical properties change under the influence of humidity. rows or columns of stitches of said knitted fabric are positioned between said conductive electrodes, each of said conductive electrodes comprising at least one conductive A knitted fabric is proposed comprising yarns, said electrically conductive yarns being woven into said knitted fabric and electrically connected to externally accessible electrical connection means.

特許文献３には、導電糸で複数のループを連ねて形成し、該ループ同士を相互に絡めることによって編み込んで一枚に形成された布地と、電極糸によって構成され、前記布地に間隔を空けて設けられた電極部と、を備え、前記導電糸が、繊維からなる芯線と、該芯線の表面を被覆する導電層又は導電性を有する箔とで構成されていることを特徴とする布ヒータが提案されている。 In Patent Document 3, a plurality of loops are formed by connecting conductive threads, and the loops are entwined with each other to form a single piece of fabric, which is knitted and formed by electrode threads. and an electrode portion provided in the cloth heater, wherein the conductive thread is composed of a core wire made of fiber and a conductive layer or conductive foil covering the surface of the core wire. is proposed.

特許文献４には、外部装置における接続端子との接続箇所において導体の劣化を抑制することができる導電性生地を提供することを目的として、導電性の被着体を重ねて固定される導電性生地であって、導電性繊維構造体により構成され、前記被着体と電気的に接続可能な導電部と、前記導電部が配設される領域の少なくとも一部分において含浸され、前記被着体を前記導電部に直接接触させた状態で接続固定する樹脂接着剤とを備える導電性生地が提案されている。 Patent Document 4 discloses a conductive fabric that is fixed by stacking conductive adherends for the purpose of providing a conductive fabric that can suppress deterioration of a conductor at a connection point with a connection terminal in an external device. A fabric comprising a conductive fiber structure, a conductive portion electrically connectable to the adherend, and at least a portion of the region where the conductive portion is disposed is impregnated to support the adherend. A conductive fabric has been proposed that includes a resin adhesive that connects and fixes the conductive part in direct contact therewith.

特開２００５－３４９０２１号公報JP-A-2005-349021 特開２０１１－１０６０８４号公報JP 2011-106084 A 特開２０１４－１５７８２４号公報JP 2014-157824 A 特開２０１７－６６５３６号公報JP 2017-66536 A

特許文献１から４には、導電糸が編地に編み込まれた導電部を備えた導電性編地として様々な態様が提案されている。しかし、導電性生地と外部装置との接続構造として、導電性接着剤を介して導電部と外部装置における接続端子とを接続する構造や、外部装置における接続端子をクリップ状に構成して導電性生地における導電部を挟んで接続する構造が採用されているに過ぎず、耐久性を備えた適切な電極接続構造という観点で一層の改良の余地があった。 Patent Literatures 1 to 4 propose various aspects of a conductive knitted fabric having a conductive portion in which a conductive yarn is woven into the knitted fabric. However, as a connection structure between the conductive fabric and the external device, there is a structure in which the conductive part and the connection terminal in the external device are connected via a conductive adhesive, or a structure in which the connection terminal in the external device is configured in a clip shape to make it conductive. It merely employs a structure in which the conductive portion of the fabric is sandwiched for connection, and there is room for further improvement from the viewpoint of an appropriate electrode connection structure with durability.

特許文献４には、その一例として、導電性の被着体と導電性生地とを樹脂接着剤を介して接合した導電性編地の電極接続構造が開示されている。 As an example, Patent Document 4 discloses an electrode connection structure of a conductive knitted fabric in which a conductive adherend and a conductive fabric are joined via a resin adhesive.

しかし、絶縁糸で編成された地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地と外部電極端子とを樹脂接着剤を介して接合する場合には、導電性帯状部を構成する導電糸に樹脂接着剤を十分に含浸させることが困難なために接着力が弱く、耐久性が確保できないという問題があった。 However, the conductive knitted fabric, in which the conductive belt-shaped portion is formed by the conductive thread composed of the metal thread or the metal film thread woven into the ground structure knitted with the insulating thread, and the external electrode terminal are connected via the resin adhesive. However, in the case of joining the conductive strips, it is difficult to impregnate the resin adhesive sufficiently into the conductive thread forming the conductive belt-like portion, so that the adhesive force is weak and the durability cannot be ensured.

本発明の目的は、上述した問題に鑑み、導電性編地と外部電極端子とを十分な接着強度で電気的に接続する導電性編地の電極接続構造及び導電性編地の電極接続方法を提供する点にある。 SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an electrode connection structure for a conductive knitted fabric and an electrode connection method for a conductive knitted fabric for electrically connecting a conductive knitted fabric and an external electrode terminal with sufficient adhesive strength. It is about providing.

上述の目的を達成するため、本発明による導電性編地の電極接続構造の第一の特徴構成は、絶縁糸で編成される地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地と外部電極端子とを電気的に接続する導電性編地の電極接続構造であって、前記導電性帯状部は前記絶縁糸に前記導電糸が添糸編みされた添糸編部で構成され、前記添糸編部のうち前記外部電極端子との接続領域で、熱硬化性樹脂に微小導電性粒子を分散させた異方性導電フィルムである樹脂製接着シートを介して前記外部電極端子と熱圧着された熱圧着部を備え、前記接続領域で前記添糸編部の地組織の表出面の少なくとも一部に前記導電糸を表出させた導電糸表出編成部が形成され、前記熱圧着部は前記接続領域に形成された導電糸表出編成部のうち前記導電糸の表出側で前記樹脂製接着シートを介して前記外部電極端子と熱圧着されている点にある。 In order to achieve the above-mentioned object, the first characteristic configuration of the electrode connection structure of the conductive knitted fabric according to the present invention is a conductive electrode composed of a metal thread or a metal film thread woven into a ground structure knitted with an insulating thread. An electrode connection structure of a conductive knitted fabric for electrically connecting a conductive knitted fabric having a conductive belt-shaped portion formed by a thread to an external electrode terminal, wherein the conductive belt-shaped portion is connected to the insulating yarn and the conductive yarn. An anisotropic conductive film in which fine conductive particles are dispersed in a thermosetting resin in a connection region with the external electrode terminal in the plating knitted portion. A thermocompression bonding portion is thermocompression bonded to the external electrode terminal via a certain resin adhesive sheet, and the conductive yarn is exposed on at least a part of the exposed surface of the ground texture of the base yarn knitted portion in the connection region. The thermocompression bonded portion is formed on the exposed side of the conductive yarn in the conductive yarn exposed knitted portion formed in the connection region, and the thermocompression bonding portion is connected to the outside via the resin adhesive sheet. The reason is that it is thermally crimped to the electrode terminal .

絶縁糸に導電糸が添糸編みされた導電性帯状部と外部電極端子とが接続領域で、熱硬化性樹脂に微小導電性粒子を分散させた異方性導電フィルムである樹脂製接着シートを介して熱圧着される際に、接続領域で添糸編部の地組織の表出面の少なくとも一部に前記導電糸を表出させた導電糸表出編成部が形成されていると、溶融した樹脂が導電糸の近傍で露出する地組織を構成する絶縁糸に浸潤するために大きなアンカー効果が生じ、導電糸と外部電極端子とが確実に電気的に接続された状態で地組織と外部電極端子とが十分な強度で接着されるようになる。 A resin adhesive sheet, which is an anisotropic conductive film in which fine conductive particles are dispersed in a thermosetting resin, is provided in a connection region between a conductive belt-shaped portion in which a conductive thread is plated on an insulating thread and an external electrode terminal. When the conductive yarn exposed knitting portion in which the conductive yarn is exposed is formed in at least a part of the exposed surface of the base texture of the base yarn knitting portion in the connection region, the conductive yarn is melted. Since the resin infiltrates the insulating yarns constituting the base structure exposed in the vicinity of the conductive yarns, a large anchoring effect is generated, and the base structure and the external electrodes are securely connected to the conductive yarns and the external electrode terminals. The terminals are bonded with sufficient strength .

なお、接続領域に形成された導電糸表出編成部のうち導電糸の反表出側では、ニットされた部位で溶融した樹脂が導電糸に妨げられて、絶縁糸で編成された地組織への樹脂の浸潤が阻害される。しかし、上述の構成のように導電糸の表出側で例えば導電糸がミスされ表出した領域では導電糸の隙間を通って絶縁糸により編成された地組織に樹脂が浸潤するため、十分なアンカー効果が働くようになる。 In addition, in the conductive yarn exposed knitting portion formed in the connection region, on the opposite side of the conductive yarn, the resin melted at the knitted portion is blocked by the conductive yarn, and the ground structure knitted with the insulating yarn resin infiltration is inhibited. However, as in the above configuration, in the exposed area of the conductive yarn, for example, the conductive yarn is missed and the resin infiltrates into the ground structure knitted with the insulating yarn through the gaps of the conductive yarn. Anchor effect works.

同第二の特徴構成は、上述の第一の特徴構成に加えて、前記導電糸表出編成部は、前記導電糸がフロート編みまたはジャカード編みの何れかで編成された浮き糸編成部で構成されている点にある。 In the second characteristic configuration, in addition to the above-described first characteristic configuration, the conductive yarn exposed knitting portion is a floating yarn knitting portion in which the conductive yarn is knitted by either float knitting or jacquard knitting. It is in the point that it is configured.

導電糸表出編成部として、導電糸がフロート編みまたはジャカード編みの何れかで編成された浮き糸編成部を好適に採用できる。 As the conductive yarn exposed knitting portion, a floating yarn knitting portion in which the conductive yarn is knitted by either float knitting or jacquard knitting can be suitably employed.

同第三の特徴構成は、上述の第一または第二の特徴構成に加えて、前記導電性帯状部の幅方向に沿って延在する基材に前記導電性帯状部の幅より小さな間隔で前記外部電極端子が複数本配列され、前記導電性帯状部に複数本の前記外部電極端子が熱圧着されている点にある。 In addition to the above-described first or second characteristic configuration, the third characteristic configuration includes: A plurality of the external electrode terminals are arranged, and the plurality of the external electrode terminals are thermocompression bonded to the conductive belt-like portion.

外部電極端子が導電糸と電気的に接触した状態で地組織と電極とが樹脂によって接着されるとともに、地組織と電極間に露出する基材とが樹脂によって接着される。電極が金などで被覆されるような場合に、仮に被覆部である金が銅パターンから一部剥離するようなことがあっても、基材との間でも十分に接着されているので、剥離による電極と導電糸との導通不良を回避できる。 While the external electrode terminals are in electrical contact with the conductive thread, the ground fabric and the electrodes are bonded with resin, and the ground fabric and the base material exposed between the electrodes are bonded with resin. When the electrodes are coated with gold, etc., even if the gold coating part peels off from the copper pattern, it is sufficiently adhered to the base material, so it will not peel off. It is possible to avoid poor conduction between the electrode and the conductive thread due to

同第四の特徴構成は、上述の第一から第三の何れかの特徴構成に加えて、前記絶縁糸が天然繊維糸、再生繊維糸または合成繊維糸と弾性糸との混用糸である点にある。 The fourth characteristic configuration is, in addition to any one of the first to third characteristic configurations, that the insulating yarn is a mixed yarn of natural fiber yarn, regenerated fiber yarn, or synthetic fiber yarn and elastic yarn. It is in.

伸縮性を備えるため、衣服など凹凸のある部位であっても表面に密着するように装着できるようになる。 Since it has elasticity, it can be worn so as to be in close contact with the surface even on uneven parts such as clothes.

本発明による導電性編地の電極接続方法の第一の特徴構成は、絶縁糸で編成された地組織に編み込まれる金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地に外部電極端子を電気的に接続する導電性編地の電極接続方法であって、前記絶縁糸に前記導電糸を添糸編みして前記導電性帯状部を形成する導電性編地編成ステップと、前記導電性帯状部と前記外部電極端子との接続領域で、熱硬化性樹脂に微小導電性粒子を分散させた異方性導電フィルムである樹脂製接着シートを介して前記導電性帯状部と前記外部電極端子とを熱圧着する電極接続工程と、を備え、前記導電性編地編成ステップは、少なくとも前記接続領域で前記添糸編部の地組織の表出面の少なくとも一部に前記導電糸を表出させた導電糸表出編成部を形成し、前記電極接続工程は、前記接続領域に備えた導電糸表出編成部のうち前記導電糸の表出側に前記樹脂製接着シートを介して前記外部電極端子と熱圧着する点にある。 The first characteristic configuration of the electrode connection method for a conductive knitted fabric according to the present invention is that the conductive belt-shaped portion is formed by conductive yarns composed of metal yarns or metal film yarns knitted into a ground structure knitted with insulating yarns. In a method for electrically connecting an external electrode terminal to a conductive knitted fabric, the conductive knitted fabric electrode connection method comprises plating the conductive yarn on the insulating yarn to form the conductive strip portion. In the knitted fabric knitting step and the connection region between the conductive belt-shaped portion and the external electrode terminal, the above-mentioned and an electrode connection step of thermocompression bonding the conductive belt-shaped portion and the external electrode terminal, wherein the conductive knitted fabric knitting step includes at least one exposed surface of the base texture of the base yarn knitted portion in at least the connection region. forming a conductive yarn exposing knitting portion in which the conductive yarn is exposed in a portion, and in the electrode connecting step, the conductive yarn exposing knitting portion provided in the connection region is formed on the exposing side of the conductive yarn with the resin. It is in that it is thermocompression bonded with the external electrode terminal via the adhesive sheet.

以上説明した通り、本発明によれば、導電性編地と外部電極端子とを十分な接着強度で電気的に接続する導電性編地の電極接続構造及び導電性編地の電極接続方法を提供することができるようになった。 As described above, the present invention provides an electrode connection structure for a conductive knitted fabric and an electrode connection method for a conductive knitted fabric for electrically connecting a conductive knitted fabric and an external electrode terminal with sufficient adhesive strength. It became possible.

（ａ）は本発明による導電性編地の電極接続構造の上面視の説明図、（ｂ）は当該電極接続構造の上面視の要部の写真である。1(a) is an explanatory top view of an electrode connection structure of a conductive knitted fabric according to the present invention, and FIG. 1(b) is a top view photograph of a main part of the electrode connection structure. 導電性編地の接合（接着）方法の説明図である。FIG. 4 is an explanatory diagram of a method of joining (bonding) the conductive knitted fabric. （ａ）は添糸編みの要部の組織図（ｂ）はフロート編みの要部の組織図である。(a) is an organization diagram of the essential part of plating, and (b) is an organization diagram of the essential part of float knitting. （ａ）は絶縁性の地組織に添糸編みで縞状の導電性帯状部が編成された導電性編地の一方の面（表面）の写真、（ｂ）は当該導電性編地の他方の面（裏面）の写真である。(a) is a photograph of one side (surface) of a conductive knitted fabric in which striped conductive strips are knitted by plating on an insulating ground structure, and (b) is a photograph of the other side of the conductive knitted fabric. It is a photograph of the side (back side) of the . （ａ）は絶縁性の地組織にフロート編みで縞状の導電性帯状部が編成された導電性編地の一方の面（表面）の写真、（ｂ）は当該導電性編地の他方の面（裏面）の写真である。(a) is a photograph of one side (surface) of a conductive knitted fabric in which striped conductive strips are knitted by float knitting on an insulating ground structure, and (b) is a photograph of the other side of the conductive knitted fabric. It is a photograph of the surface (back surface). （ａ）は導電性編地の編組織と電極接続側に配される樹脂製接着シートとの位置関係を示す説明図、（ｂ）は別実施例の説明図、（ｃ）は比較例の説明図、（ｄ）は比較例の説明図である。(a) is an explanatory diagram showing the positional relationship between the knitted structure of the conductive knitted fabric and the resin adhesive sheet arranged on the electrode connection side, (b) is an explanatory diagram of another example, and (c) is a comparative example. Explanatory drawing, (d) is explanatory drawing of a comparative example. （ａ）は図５（ａ）の面に外部電極端子を接合した電極接続構造の写真、（ｂ）は図５（ｂ）の面に外部電極端子を接合した電極接続構造の写真である。(a) is a photograph of an electrode connection structure in which an external electrode terminal is joined to the surface of FIG. 5(a), and (b) is a photograph of an electrode connection structure in which an external electrode terminal is joined to the surface of FIG. 5(b). （ａ）は本発明による導電性編地の電極接続構造と比較例との接着強さの実験結果説明図、（ｂ）はその特性図、（ｃ）は実験方法の説明図である。(a) is an explanatory diagram of experimental results of bonding strength between an electrode connection structure of a conductive knitted fabric according to the present invention and a comparative example, (b) is a characteristic diagram thereof, and (c) is an explanatory diagram of an experimental method.

以下、本発明による導電性編地の電極接続構造及び導電性編地の電極接続方法を図面に基づいて説明する。
図１（ａ），（ｂ）及び図２には、導電性編地の電極接続構造１０が示されている。当該電極接続構造１０は、導電性編地３と外部電極端子５とを電気的に接続する接続構造である。導電性編地３は、絶縁糸１ａで編成される地組織１に編み込まれた金属糸または金属皮膜糸で構成される導電糸２ａにより導電性帯状部２が形成されている。 Hereinafter, an electrode connection structure for a conductive knitted fabric and an electrode connection method for a conductive knitted fabric according to the present invention will be described with reference to the drawings.
FIGS. 1(a), (b) and 2 show an electrode connection structure 10 of a conductive knitted fabric. The electrode connection structure 10 is a connection structure for electrically connecting the conductive knitted fabric 3 and the external electrode terminals 5 . In the conductive knitted fabric 3, a conductive strip 2 is formed by a conductive thread 2a composed of a metal thread or a metal film thread woven into a ground structure 1 knitted with an insulating thread 1a.

導電性帯状部２は絶縁糸に導電糸が添糸編みされた添糸編部で構成され、添糸編部のうち少なくとも外部電極端子５との接続領域ＣＡで樹脂製接着シート８を介して外部電極端子５と熱圧着された熱圧着部４を備え、少なくとも接続領域ＣＡで導電糸２ａがフロート編みされた浮き糸編成部を備えている。 The conductive belt-shaped portion 2 is composed of a plating knitted portion in which a conductive yarn is plated on an insulating yarn. It has a thermo-compression bonding portion 4 thermo-compression-bonded to an external electrode terminal 5, and has a float yarn knitting portion in which the conductive yarn 2a is float-knitted at least in the connection area CA.

図３（ａ）には、添糸編みの編組織が示されている。添糸編みはプレーティング編みともいい、絶縁糸１ａと導電糸２ａをそれぞれ別の給糸口から編み針に給糸する編成方法により実現される。各編成ループにおける絶縁糸１ａと導電糸２ａとの配置が安定しているため、全てのループに導電糸２ａを隣接させることができる。そのため、編地の一方の面（表面）に導電糸２ａが現れ、他方の面（裏面）に絶縁糸１ａが現れる。 FIG. 3(a) shows a knitting structure of plating. Plated knitting is also called plating knitting, and is realized by a knitting method in which the insulating yarn 1a and the conductive yarn 2a are fed from separate yarn feeders to knitting needles. Since the arrangement of the insulating yarn 1a and the conductive yarn 2a in each knitting loop is stable, the conductive yarn 2a can be adjacent to all the loops. Therefore, the conductive thread 2a appears on one side (front side) of the knitted fabric, and the insulating thread 1a appears on the other side (back side).

図４（ａ）には、添糸編み編成により濃淡の縞模様が形成された導電性編地３の一方の面（表面）の写真が示され、図４（ｂ）には他方の面（裏面）の写真が示されている。絶縁糸１ａで編成される地組織１（淡色の縞）に、導電糸２ａが添糸編み編成された導電性帯状部２（濃色の縞）が形成されている。導電糸２ａが表面に現れる一方の面（表面）に比べて絶縁糸１ａが現れる他方の面（裏面）の導電性帯状部２の色が薄くなっている。 FIG. 4(a) shows a photograph of one surface (surface) of the conductive knitted fabric 3 in which a dark and light striped pattern is formed by plating, and FIG. 4(b) shows a photograph of the other surface ( A photograph of the reverse side) is shown. Conductive strips 2 (dark-colored stripes) are formed on a ground structure 1 (light-colored stripes) knitted with insulating yarns 1a by plating the conductive yarns 2a. The color of the conductive belt-like portion 2 on the other side (rear surface) where the insulating threads 1a appear is lighter than that on the one side (front surface) where the conductive threads 2a appear.

図３（ｂ）には、浮き糸編成部となるフロート編みの編組織が示されている。フロート編みは、コース方向に沿って全てのループで絶縁糸１ａと導電糸２ａがニットされる添糸編みの変形で、コース方向に沿って単一または複数のループでミスされるように編成される。この例では、コース方向に一つのループ単位でニットとミスが交互に配置されている。 FIG. 3(b) shows a knitting structure of float knitting which becomes the floating yarn knitting portion. Float knitting is a variation of plating knitting in which insulating yarn 1a and conductive yarn 2a are knitted in all loops along the course direction, and is knitted so that single or multiple loops are missed along the course direction. be. In this example, knits and misses are alternately arranged in one loop unit in the course direction.

図５（ａ）には、フロート編み編成されることにより得られた濃淡の縞模様の導電性編地３の一方の面（表面）の写真が示され、図５（ｂ）には他方の面（裏面）の写真が示されている。導電糸２ａがコース方向に連続する複数のループでミスされ、一つのループでニットされる構成を基本パターンとして、当該基本パターンを繰り返して導電性編地３が構成されている。 FIG. 5(a) shows a photograph of one side (surface) of the conductive knitted fabric 3 having a dark and light striped pattern obtained by float knitting, and FIG. 5(b) shows a photograph of the other side. A photograph of the face (back) is shown. The basic pattern is a configuration in which the conductive yarn 2a is knitted with a plurality of loops continuous in the course direction and knitted with one loop, and the conductive knitted fabric 3 is constructed by repeating the basic pattern.

図５（ａ）では、絶縁糸１ａで編成される地組織１（淡色の縞）に、導電糸２ａがミスにより浮き糸として表れているため、図４（ａ）と対比して目の粗さが確認できる。図５（ｂ）では、導電糸２ａがミスにより浮き糸となる部位で全面的に絶縁糸１ａが現れており、図４（ｂ）と対比して絶縁糸１ａを透かして薄く現れる導電糸２ａのニット部分が斑点状であることが確認できる。 In FIG. 5(a), the conductive yarn 2a appears as a floating yarn due to a mistake in the ground texture 1 (light colored stripes) knitted with the insulating yarn 1a. You can check the sag. In FIG. 5(b), the insulating thread 1a appears all over the area where the conductive thread 2a becomes a floating thread due to a mistake. It can be confirmed that the knit part of is spotty.

この例では、導電性帯状部２の幅が８ｍｍ、隣接する導電性帯状部２の間の地組織１の幅が８ｍｍの縞模様に形成され、地組織１を構成する絶縁糸１ａとして、綿糸とポリウレタン弾性糸が混用された糸が用いられ、コース方向及びウェール方向に伸縮性が発現するように構成されている。具体的には、地組織１が綿糸とポリウレタン弾性糸で添糸編み編成され、さらに導電糸２ａがフロート編み編成されて導電性帯状部２が構成されている。 In this example, the width of the conductive strips 2 is 8 mm, and the width of the base fabric 1 between the adjacent conductive strips 2 is formed in a striped pattern of 8 mm. and polyurethane elastic yarn are used, and it is constructed to exhibit stretchability in the course direction and the wale direction. Specifically, the base fabric 1 is plated with cotton yarn and polyurethane elastic yarn, and the conductive yarn 2a is float-knitted to form the conductive strip 2. As shown in FIG.

絶縁層を挟んで導電性帯状部２が直交するように２枚の導電性編地３を重畳配置することにより、位置検出可能な入力素子として機能させることができる。このような入力素子を衣類に適用することにより、衣類をタッチ操作して電子機器を遠隔制御する入力デバイスが実現できる。なお、これは一例であり、導電性帯状部２を流れる電流の抵抗損失を利用した発熱素子として機能させ、或いは、背景技術の欄で説明した湿度検出素子や、信号伝達用の配線として用いることも可能である。何れも衣類や敷布などに組み込むことができる。 By arranging two conductive knitted fabrics 3 so that the conductive strips 2 are perpendicular to each other with an insulating layer interposed therebetween, it is possible to function as an input element capable of position detection. By applying such input elements to clothing, it is possible to realize an input device that remotely controls an electronic device by touching the clothing. It should be noted that this is only an example, and the conductive belt-shaped portion 2 may function as a heating element utilizing the resistance loss of the current flowing through the conductive belt-like portion 2, or may be used as the humidity detection element described in the background art section or wiring for signal transmission. is also possible. Both can be incorporated into clothing, bed sheets, and the like.

図２に示すように、外部電極端子５はフレキシブルプリント基板２０に形成されている。フレキシブルプリント基板２０は、ポリイミド樹脂製のベース基板２１にエッチング処理によって銅箔パターン２３が積層形成され、電極端子となる銅箔パターン２３の端部を除いてポリイミド樹脂製の絶縁被覆部２２で覆われている。絶縁被覆部２２から露出した銅箔パターン２３の端部が金メッキされて外部電極端子５となる。 As shown in FIG. 2, the external electrode terminals 5 are formed on a flexible printed circuit board 20. As shown in FIG. A flexible printed circuit board 20 is formed by laminating a copper foil pattern 23 on a base substrate 21 made of polyimide resin by etching, and covering the copper foil pattern 23 with an insulating coating portion 22 made of polyimide resin except for the end portions of the copper foil pattern 23 that serve as electrode terminals. It is The ends of the copper foil pattern 23 exposed from the insulating coating 22 are plated with gold to form the external electrode terminals 5 .

外部電極端子５と導電性帯状部２とを樹脂製接着シート８を挟んで対向配置し、被覆シート３０を介してフレキシブルプリント基板２０の背後から導電性編地３側に向けて加熱体９を所定圧力で所定時間押圧することによって、樹脂製接着シート８が溶融し、導電性編地３と外部電極端子５とが電気的に接続された状態で接着される。 The external electrode terminal 5 and the conductive belt-like portion 2 are arranged to face each other with the resin adhesive sheet 8 interposed therebetween, and the heating element 9 is directed from behind the flexible printed circuit board 20 toward the conductive knitted fabric 3 side through the covering sheet 30 . By pressing with a predetermined pressure for a predetermined time, the resin adhesive sheet 8 is melted, and the conductive knitted fabric 3 and the external electrode terminal 5 are adhered in a state of being electrically connected.

絶縁糸１ａとして、ポリエステル繊維やナイロン繊維などの合成繊維糸、綿や絹や麻などの天然繊維糸、キュプラやレーヨンなどの再生繊維糸、それらと弾性糸との混用糸などを用いることができる。なお、絶縁糸１ａとして「弾性糸との混用糸を用いる」とは、弾性糸と他の糸とを一体の糸として用いるばかりでなく、弾性糸と他の糸とを編み糸として別々に用いて編地にすることも含む概念である。 As the insulating thread 1a, synthetic fiber thread such as polyester fiber and nylon fiber, natural fiber thread such as cotton, silk and hemp, regenerated fiber thread such as cupra and rayon, mixed thread of these and elastic thread, etc. can be used. . It should be noted that "using a yarn mixed with an elastic yarn" as the insulating yarn 1a means not only using the elastic yarn and another yarn as a single yarn, but also using the elastic yarn and the other yarn separately as knitting yarns. It is a concept that also includes making it into a knitted fabric.

弾性糸としてポリウレタンやゴム系のエラストマー材料を単独で用いてもよいし、芯にポリウレタンやゴム系のエラストマー材料を用い、カバーにナイロンやポリエステルを用いたカバリング糸などを採用することができる。なお、絶縁糸１ａとして、モノフィラメント糸を採用してもよいが、複数の単繊維の集合体であるマルチフィラメント糸や紡績糸の採用がより好ましい。 A polyurethane or rubber-based elastomer material may be used alone as the elastic thread, or a covering thread using polyurethane or a rubber-based elastomer material for the core and using nylon or polyester for the cover may be used. A monofilament yarn may be employed as the insulating yarn 1a, but it is more preferable to employ a multifilament yarn or a spun yarn, which is an aggregate of a plurality of single filaments.

絶縁糸１ａの繊度は１０ｄｔｅｘ～５００ｄｔｅｘが好ましく、特に２０ｄｔｅｘ～４００ｄｔｅｘが好ましい。 The fineness of the insulating thread 1a is preferably 10 dtex to 500 dtex, particularly preferably 20 dtex to 400 dtex.

導電糸２ａとして、樹脂繊維や天然繊維、或いは金属線等を芯として、この芯に湿式や乾式のコーティング、メッキ、真空成膜、その他の適宜被着法を行って金属成分を被着させた金属被着線（メッキ線）を使用するのが好適である。芯にモノフィラメント糸を採用してもよいが、マルチフィラメントや紡績糸の採用がより好ましい。 As the conductive yarn 2a, a resin fiber, a natural fiber, a metal wire, or the like is used as a core, and the core is coated with a metal component by performing wet or dry coating, plating, vacuum film formation, or other suitable coating method. It is preferred to use a metal clad wire (plated wire). A monofilament yarn may be used for the core, but it is more preferable to use a multifilament yarn or a spun yarn.

芯に被着させる金属成分には、例えばアルミ、ニッケル、銅、チタン、マグネシウム、錫、亜鉛、鉄、銀、金、白金、バナジウム、モリブデン、タングステン、コバルト等の純金属やそれらの合金、ステンレス、真鍮等を使用することができる。本実施形態ではナイロンやポリエステルで構成されるマルチフィラメントに銀メッキした糸が用いられている。 Metal components to be coated on the core include, for example, pure metals such as aluminum, nickel, copper, titanium, magnesium, tin, zinc, iron, silver, gold, platinum, vanadium, molybdenum, tungsten, cobalt, alloys thereof, and stainless steel. , brass, etc. can be used. In this embodiment, silver-plated threads are used for multifilaments made of nylon or polyester.

導電糸２ａの繊度は３３ｄｔｅｘ～４００ｄｔｅｘが好ましく、特に７０ｄｔｅｘ～３００ｄｔｅｘが好ましい。 The fineness of the conductive yarn 2a is preferably 33dtex to 400dtex, particularly preferably 70dtex to 300dtex.

導電糸５として芯糸に金属成分を被着させた金属メッキ糸を用いる例を説明したが、例えば、日本新素材株式会社製のシルベルンＺＡＧ（登録商標）などのように、天然繊維や合成繊維に銀イオンを付着させた銀イオン糸を用いることも可能である。本明細書では、これらを総称して金属被膜糸と表記している。 An example of using a metal-plated thread in which a metal component is coated on the core thread as the conductive thread 5 has been described. It is also possible to use a silver ion thread in which silver ions are attached to the thread. In this specification, these are collectively referred to as metal-coated threads.

地組織として、例えば天竺編（平編）、リブ編（ゴム編、フライス編）、パール編、デンビー編（トリコット編）、アトラス編、コード編、あるいはそれらの変化組織などの編地で構成することができる。 As the ground weave, for example, it is composed of knitted fabrics such as tenjiku knitting (flat knitting), rib knitting (rubber knitting, milling knitting), pearl knitting, Denbie knitting (tricot knitting), atlas knitting, cord knitting, or a change organization thereof. be able to.

樹脂製接着シート８として、樹脂製接着シートが熱硬化性樹脂に微小金属粒子を分散させた異方性導電フィルムや、熱可塑性樹脂フィルムを好適に用いることができる。熱可塑性樹脂フィルムとして、例えば、ポリウレタン系ホットメルト樹脂、ポリエステル系ホットメルト樹脂、ポリアミド系ホットメルト樹脂、ＥＶＡ系ホットメルト樹脂、ポリオレフィン系ホットメルト樹脂、スチレン系エラストマー樹脂、湿気硬化型ウレタン系ホットメルト樹脂、反応型ホットメルト樹脂で構成されるフィルムを採用することができる。 As the resin adhesive sheet 8, an anisotropic conductive film in which fine metal particles are dispersed in a thermosetting resin, or a thermoplastic resin film can be suitably used. Examples of thermoplastic resin films include polyurethane-based hot-melt resins, polyester-based hot-melt resins, polyamide-based hot-melt resins, EVA-based hot-melt resins, polyolefin-based hot-melt resins, styrene-based elastomer resins, and moisture-curing urethane-based hot-melt resins. A film made of resin or reactive hot-melt resin can be used.

図１（ａ），（ｂ）及び図２に戻って説明を続ける。本発明による導電性編地の電極接続構造１０は、絶縁糸１ａに導電糸２ａが添糸編みされた導電性帯状部２と外部電極端子５とが接続領域ＣＡで樹脂製接着シートを介して熱圧着される際に、接続領域ＣＡで導電糸２ａが地組織１に対してフロート編みされていると、溶融した樹脂がフロート編みされ導電糸２ａの近傍で露出する地組織を構成する絶縁糸に浸潤するために大きなアンカー効果が生じ、導電糸２ａと外部電極端子５とが電気的に接続された状態で地組織１と外部電極端子５とが十分な強度で接着されるようになる。 The description continues with returning to FIGS. In the electrode connection structure 10 of the conductive knitted fabric according to the present invention, the conductive belt-like portion 2 in which the conductive yarn 2a is plated on the insulating yarn 1a and the external electrode terminal 5 are connected through the resin adhesive sheet in the connection area CA. When the conductive yarn 2a is float-knitted with respect to the base structure 1 in the connection area CA at the time of thermocompression bonding, the molten resin is float-knitted and the insulating yarn constituting the base structure exposed near the conductive yarn 2a. A large anchoring effect occurs due to the infiltration into the inner layer, and the base tissue 1 and the external electrode terminals 5 are bonded with sufficient strength while the conductive threads 2a and the external electrode terminals 5 are electrically connected.

熱圧着部は接続領域ＣＡでフロート編みされた導電糸２ａの浮き糸側の面で樹脂製接着シート８を介して外部電極端子５と熱圧着されていることが好ましいが、導電糸２ａの浮き糸側の面とは反対側の面で熱圧着されていてもある程度の接着強度が得られる。なお、フロート編みのニットとミスのパターンについては特段の制限はないが、少なくとも一つのループのニットと複数ループのミスが繰り返されることが好ましい。 The thermocompression bonding portion is preferably thermocompression bonded to the external electrode terminal 5 via the resin adhesive sheet 8 on the surface of the float yarn side of the conductive yarn 2a float-knitted in the connection area CA. A certain degree of bonding strength can be obtained even if the surface opposite to the thread side is thermocompression bonded. Although there are no particular restrictions on the pattern of knitting and mistakes in the float knitting, it is preferable that at least one loop of knitting and a plurality of loops of mistakes are repeated.

図６（ａ）にはフロート編みされた導電糸２ａの浮き糸側が現れる一方の面（便宜上、「表面」と表記する。）で樹脂製接着シート８を介して外部電極端子５と熱圧着される場合の導電性編地３の断面が示され、図６（ｂ）にはフロート編みされた導電糸２ａの浮き糸側の反対側である他方の面（便宜上、「裏面」と表記する。）で樹脂製接着シート８を介して外部電極端子５と熱圧着される場合の導電性編地３の断面が示されている。 In FIG. 6( a ), one surface (referred to as “surface” for convenience) on which the floating yarn side of the float-knitted conductive yarn 2 a appears is thermocompression-bonded to the external electrode terminal 5 via the resin adhesive sheet 8 . FIG. 6B shows the other side opposite to the float side of the float-knitted conductive yarn 2a (referred to as "back side" for convenience). ) shows a cross section of the conductive knitted fabric 3 in the case of being thermocompression-bonded to the external electrode terminal 5 via the resin adhesive sheet 8 .

図６（ｂ）に示すように、接続領域ＣＡでフロート編みされた導電糸２ａの反浮き糸側の面（裏面）では、ニットされた部位Ｐ１で溶融した樹脂の絶縁糸１ａへの浸潤が導電糸２ａによって妨げられる傾向にあるため、当該部位で地組織１への樹脂の浸潤が阻害され、十分なアンカー効果が発揮されないものの、ミスされた部位Ｐ２では溶融した樹脂が絶縁糸１ａへ十分に浸潤するため、ある程度のアンカー効果が発揮される。この様な構成を採用した電極接続構造の例が図７（ｂ）に示されている。 As shown in FIG. 6(b), on the surface (back surface) of the conductive yarn 2a float-knitted in the connection area CA on the side opposite to the floating yarn (back surface), the resin melted at the knitted portion P1 infiltrates into the insulating yarn 1a. Since it tends to be hindered by the conductive thread 2a, the infiltration of the resin into the ground structure 1 is inhibited at the site, and a sufficient anchoring effect is not exhibited. A certain amount of anchoring effect is exerted because it infiltrates into An example of an electrode connection structure employing such a configuration is shown in FIG. 7(b).

なお、導電糸２ａは金属糸または金属皮膜糸で構成されているため、芯が撚糸またはマルチフィラメント糸で構成されていても溶融した樹脂が容易に芯糸に浸潤することがなく、十分なアンカー効果が発揮されることはない。 In addition, since the conductive yarn 2a is composed of a metal yarn or a metal film yarn, even if the core is composed of a twisted yarn or a multifilament yarn, the molten resin does not easily infiltrate into the core yarn, and a sufficient anchor is obtained. No effect is shown.

これに対して、図６（ａ）に示すように、接続領域ＣＡでフロート編みされた導電糸２ａの浮き糸側の面（表面）では、ニットされた部位Ｐ３が殆ど面上に露出しないため溶融した樹脂の絶縁糸１ａへの浸潤が導電糸２ａによって妨げられることがなく、ミスされた部位Ｐ４では溶融した樹脂が浮き糸となる導電糸２ａの隙間を通過して絶縁糸１ａへ十分に浸潤するため、より一層、十分なアンカー効果が発揮される。この様な構成を採用した電極接続構造の例が図７（ａ）に示されている。 On the other hand, as shown in FIG. 6(a), on the float side surface (surface) of the conductive yarn 2a float-knitted in the connection area CA, the knitted portion P3 is hardly exposed on the surface. The infiltration of the molten resin into the insulating yarns 1a is not hindered by the conductive yarns 2a, and the molten resin passes through the gaps of the conductive yarns 2a that serve as floating yarns and is sufficiently supplied to the insulating yarns 1a at the missed portion P4. Since it infiltrates, a sufficient anchoring effect is exhibited even more. An example of an electrode connection structure employing such a configuration is shown in FIG. 7(a).

図６（ｃ）には、絶縁糸１ａと導電糸２ａが添糸編み編成された導電性編地３の導電糸２ａが現れる一方の面（表面）で樹脂製接着シート８を介して外部電極端子５と熱圧着される場合の導電性編地３の断面が示され、図６（ｄ）には添糸編み編成された導電糸２ａが隠れる他方の面（裏面）で樹脂製接着シート８を介して外部電極端子５と熱圧着される場合の導電性編地３の断面が示されている。 In FIG. 6(c), an external electrode is attached via a resin adhesive sheet 8 on one side (surface) where the conductive yarn 2a of the conductive knitted fabric 3 in which the insulating yarn 1a and the conductive yarn 2a are plated and knitted is exposed. A cross section of the conductive knitted fabric 3 when it is thermocompressed with the terminal 5 is shown, and FIG. A cross section of the conductive knitted fabric 3 is shown when it is thermocompression bonded to the external electrode terminal 5 via the .

図６（ｃ）に示すように、導電糸２ａが現れる表面では、接続領域ＣＡで添糸編みされた導電糸２ａによって絶縁糸１ａへの樹脂の浸潤が妨げられるので、十分なアンカー効果が発揮されない。また、図６（ｄ）に示すように、導電糸２ａが隠れる裏面でも、絶縁糸１ａに浸潤した樹脂が近傍の導電糸２ａに妨げられて、厚み方向への樹脂の浸潤が妨げられるので、やはり十分なアンカー効果が発揮されない。 As shown in FIG. 6(c), on the surface where the conductive yarn 2a appears, the conductive yarn 2a plated in the connection area CA prevents the resin from infiltrating into the insulating yarn 1a, thus exhibiting a sufficient anchoring effect. not. Further, as shown in FIG. 6(d), even on the back surface where the conductive yarn 2a is hidden, the resin infiltrated into the insulating yarn 1a is blocked by the adjacent conductive yarn 2a, and the resin is prevented from infiltrating in the thickness direction. A sufficient anchor effect is still not exhibited.

従って、少なくとも接続領域ＣＡで導電糸２ａが地組織１に対してフロート編みされていることが重要となり、接続領域ＣＡ以外でも導電糸２ａが地組織１に対してフロート編みされた導電性帯状部２が形成されていてもよい。 Therefore, it is important that the conductive yarn 2a is float-knitted to the ground weave 1 at least in the connection area CA. 2 may be formed.

図１（ａ）に示すように、導電性帯状部２の幅方向に沿って延在する基材２１に導電性帯状部２の幅より小さな間隔で外部電極端子５が複数本（この例では５本）配列され、導電性帯状部２に複数本の外部電極端子５が熱圧着されていることが好ましい。 As shown in FIG. 1A, a plurality of external electrode terminals 5 (in this example, 5) are arranged, and a plurality of external electrode terminals 5 are preferably thermocompression bonded to the conductive belt-shaped portion 2 .

外部電極端子５が導電糸２ａと電気的に接触した状態で地組織１と電極５とが樹脂によって接着されるとともに、地組織１と電極５間に露出する基材２１とが樹脂によって接着される。この例のように電極５が金などで被覆されるような場合に、仮に被覆部である金が銅パターンから一部剥離するようなことがあっても、基材２１との間でも十分に接着されているので、剥離による電極５と導電糸２ａとの導通不良を回避できる。 While the external electrode terminal 5 is in electrical contact with the conductive thread 2a, the ground fabric 1 and the electrode 5 are adhered with resin, and the base material 21 exposed between the ground fabric 1 and the electrode 5 is adhered with resin. be. In the case where the electrode 5 is coated with gold or the like as in this example, even if the gold coating is partly peeled off from the copper pattern, there is sufficient contact with the base material 21. Since they are adhered, it is possible to avoid poor conduction between the electrode 5 and the conductive thread 2a due to peeling.

また、複数本配列された外部電極端子５の両側に位置する外部電極端子５の外側同士の間隔は導電性帯状部２の幅より僅かに広いことが好ましい。精錬などの後処理が施された後の導電性編地３が伸縮し、導電性帯状部２の幅などが多少変動する様なことがあっても、接着時にその変動を吸収することが可能になる。 Moreover, it is preferable that the distance between the outer sides of the external electrode terminals 5 positioned on both sides of the plurality of arranged external electrode terminals 5 is slightly wider than the width of the conductive strip portion 2 . Even if the conductive knitted fabric 3 expands and contracts after being subjected to post-treatment such as refining, and the width of the conductive belt-like portion 2 varies somewhat, the variation can be absorbed during bonding. become.

なお、外部電極端子５が導電性帯状部２の幅と等しいか僅かに大きな幅で構成されていてもよい。 The external electrode terminal 5 may have a width equal to or slightly larger than the width of the conductive strip 2 .

また、隣接する導電性帯状部２の間に存在する地組織（図１（ａ）の符号ＣＡで示す接合領域の間の地組織の領域）も樹脂製接着シート８を介してフレキシブルプリント基板２０の基材２１と接着されるように構成することが好ましく、導電性編地３とフレキシブルプリント基板２０との間の接着強度を高めることができる。 In addition, the base structure existing between the adjacent conductive strips 2 (region of the base structure between the joint regions indicated by symbol CA in FIG. The adhesive strength between the conductive knitted fabric 3 and the flexible printed circuit board 20 can be increased.

上述した実施形態では、導電性帯状部２の幅が８ｍｍ、隣接する導電性帯状部２の間の地組織１の幅が８ｍｍの縞模様に形成された導電性編地３を説明したが、導電性帯状部２の幅及び導電性帯状部２の間の地組織１の幅は特に限定されることはなく、用途に応じて適宜設定すればよい。また、導電性帯状部２の本数も任意である。 In the above-described embodiment, the conductive knitted fabric 3 formed in a striped pattern in which the width of the conductive strips 2 is 8 mm and the width of the ground structure 1 between the adjacent conductive strips 2 is 8 mm has been described. The width of the conductive strips 2 and the width of the base structure 1 between the conductive strips 2 are not particularly limited, and may be appropriately set according to the application. Moreover, the number of the conductive strips 2 is also arbitrary.

上述した実施形態では、地組織１を構成する絶縁糸１ａとして、綿糸とポリウレタン弾性糸が添糸編み編成され、コース方向及びウェール方向に伸縮性が発現するように構成された導電性編地３を説明したが、低融点のポリウレタン弾性糸を用いて導電性編地３を編成し、後にヒートセットすれば、溶融したポリウレタン弾性糸の一部が編目に融着して解れ止め機能を備えた導電性編地３を実現できる。 In the above-described embodiment, the conductive knitted fabric 3 is configured such that cotton yarn and polyurethane elastic yarn are plated and knitted as the insulating yarns 1a constituting the ground weave 1, and stretchability is exhibited in the course direction and the wale direction. However, if the conductive knitted fabric 3 is knitted using polyurethane elastic yarns with a low melting point and then heat-set, a part of the melted polyurethane elastic yarns is fused to the stitches to provide an anti-unraveling function. A conductive knitted fabric 3 can be realized.

上述した実施形態では外部電極端子５がフレキシブルプリント基板２０の基材２１に形成された例を説明したが、導電性編地３に接続される外部電極端子５はフレキシブルプリント基板２０に形成されたものに限ることはなく、剛性のあるプリント基板に形成された外部電極端子５であってもよい。 In the above-described embodiment, an example in which the external electrode terminals 5 are formed on the base material 21 of the flexible printed circuit board 20 has been described. However, the external electrode terminals 5 may be formed on a rigid printed circuit board.

上述した実施形態では、接続領域に、フロート編みで形成された浮き糸編成部を備え、添糸編部の地組織の表出面の少なくとも一部に導電糸を表出させた例を説明したが、浮き糸編成部としてフロート編み以外にジャカード編みを採用することも可能である。 In the above-described embodiment, an example has been described in which the connection region is provided with the float yarn knitting portion formed by float knitting, and the conductive yarn is exposed on at least a part of the exposed surface of the ground texture of the base yarn knitting portion. In addition to float knitting, jacquard knitting can also be used as the float yarn knitting unit.

また、浮き糸編成部によって添糸編部の地組織の表出面の少なくとも一部に導電糸を表出させた例を説明したが、浮き糸編成部以外にタック編みを採用することにより、添糸編部の地組織の表出面の少なくとも一部に導電糸を表出させることも可能であり、浮き糸編成部を含めた概念として導電糸表出編成部が形成されていればよい。 In addition, an example has been described in which the conductive yarn is exposed on at least a part of the exposed surface of the base texture of the base yarn knitting portion by the floating yarn knitting portion, but by adopting tuck knitting in addition to the floating yarn knitting portion, the attachment yarn can be obtained. It is also possible to expose the conductive yarn on at least a part of the exposed surface of the base structure of the yarn knitted portion, and it is sufficient that the conductive yarn exposed knitted portion is formed as a concept including the floating yarn knitted portion.

以上説明したように、本発明による導電性編地の電極接続方法は、絶縁糸１ａで編成された地組織１に編み込まれる金属糸または金属皮膜糸で構成される導電糸２ａにより導電性帯状部２が形成された導電性編地３に外部電極端子５を電気的に接続する導電性編地の電極接続方法であって、絶縁糸１ａに導電糸２ａを添糸編みして導電性帯状部３を形成する導電性編地編成ステップと、導電性帯状部２と外部電極端子５との接続領域ＣＡで樹脂製接着シート８を介して導電性帯状部３と外部電極端子５とを熱圧着する電極接続工程と、を備え、導電性編地編成ステップは、少なくとも接続領域ＣＡで添糸編部の地組織の表出面の少なくとも一部に導電糸２ａを表出させた導電糸表出編成部を形成するように構成されている。導電糸表出編成部を構成する編成法としてタック編みを採用することができる。また、フロート編みまたはジャカード編みを採用した浮き糸編成部により導電糸表出編成部を構成することも可能である。 As described above, in the method of connecting electrodes of a conductive knitted fabric according to the present invention, the conductive yarns 2a composed of metal yarns or metal film yarns knitted into the ground structure 1 knitted with the insulating yarns 1a are used to form the conductive strips. An electrode connection method of a conductive knitted fabric for electrically connecting an external electrode terminal 5 to a conductive knitted fabric 3 on which 2 is formed, wherein the conductive yarn 2a is plated on the insulating yarn 1a to form a conductive belt-like portion. 3, and the conductive strip 3 and the external electrode terminal 5 are thermocompression bonded via a resin adhesive sheet 8 in the connection area CA between the conductive strip 2 and the external electrode terminal 5. The conductive knitted fabric knitting step includes a conductive yarn exposed knitting in which the conductive yarn 2a is exposed on at least a part of the exposed surface of the ground texture of the base yarn knitted portion at least in the connection area CA. configured to form a part. Tuck knitting can be adopted as a knitting method for forming the conductive yarn exposed knitting portion. It is also possible to configure the conductive yarn exposed knitting portion by a floating yarn knitting portion adopting float knitting or jacquard knitting.

そして、電極接続工程は、接続領域ＣＡに備えた導電糸表出編成部のうち導電糸２ａの浮き糸側に樹脂製接着シート８を介して外部電極端子５と熱圧着するように構成されていることが好ましい。 In the electrode connecting step, the external electrode terminal 5 is thermally compressed to the float side of the conductive yarn 2a in the conductive yarn exposed knitting portion provided in the connection area CA with the resin adhesive sheet 8 interposed therebetween. preferably.

以下に実験例を説明する。
綿糸とポリウレタン弾性糸を添糸編み編成される地組織１に、コース方向に導電糸２ａを１ループニット、３ループミスの繰返しでフロート編みして、ヒートセットにより解れ止め処理し、ウェール方向に幅８ｍｍの導電性帯状部２を形成したサンプルＡ，Ｂを製作するとともに、綿糸とポリウレタン弾性糸を添糸編み編成した地組織１に、同時に導電糸２ａを添糸編み編成して、ヒートセットにより解れ止め処理し、ウェール方向に幅８ｍｍの導電性帯状部２を形成した比較サンプルＣ，Ｄを製作した。 Experimental examples are described below.
On a ground structure 1 in which cotton yarn and polyurethane elastic yarn are plated and knitted, conductive yarn 2a is float-knitted by repeating 1 loop knitting and 3 loop misses in the course direction, treated to prevent unraveling by heat setting, and width in the wale direction. Samples A and B having 8 mm conductive strips 2 formed thereon were produced, and at the same time, conductive yarns 2a were plated and knitted on base fabrics 1 plated and knitted with cotton yarn and polyurethane elastic yarn, and heat-set. Comparative samples C and D were manufactured in which an anti-unraveling treatment was performed to form a conductive belt-like portion 2 having a width of 8 mm in the wale direction.

サンプルＡは導電糸２ａである浮き糸が現れる表面に異方性導電フィルムを介してフレキシブル基板２０に形成された外部電極端子５と接合し、サンプルＢは導電糸２ａである浮き糸が隠れる裏面に異方性導電フィルム８を介してフレキシブル基板２０に形成された外部電極端子５と接合した。 Sample A is joined to the external electrode terminal 5 formed on the flexible substrate 20 via an anisotropic conductive film on the surface where the floating threads, which are the conductive threads 2a, are bonded, and sample B is the back surface where the floating threads, which are the conductive threads 2a, are hidden. was joined to the external electrode terminals 5 formed on the flexible substrate 20 via the anisotropic conductive film 8 .

サンプルＣは導電糸２ａが現れる表面に異方性導電フィルムを介してフレキシブル基板２０に形成された外部電極端子５と接合し、サンプルＤは導電糸２ａが隠れる裏面に異方性導電フィルム８を介してフレキシブル基板２０に形成された外部電極端子５と接合した。 Sample C is joined to the external electrode terminals 5 formed on the flexible substrate 20 via an anisotropic conductive film on the surface where the conductive yarns 2a appear, and sample D has an anisotropic conductive film 8 on the back surface where the conductive yarns 2a are hidden. It was joined to the external electrode terminals 5 formed on the flexible substrate 20 through the holes.

図８（ｃ）に示すように、それぞれ接合領域ＣＡを挟んで、編地幅が９ｍｍとなる矩形に裁断するとともに、編地の伸長特性を阻害するように編地に樹脂をコーティングした。引張試験機（ＩＭＡＤＡ社製の縦型電動計測スタンドＭＸ－５００ＮとデジタルフォースゲージＺＴＳ－１００Ｎ）に上下掴み間隔２ｃｍでセットして引張速度１００ｍｍ／ｍｉｎで引っ張り試験を行ない、引張せん断接着強さを計測した。 As shown in FIG. 8(c), the knitted fabric was cut into rectangles with a knitted fabric width of 9 mm on both sides of the joining area CA, and the knitted fabric was coated with a resin so as to inhibit the stretchability of the knitted fabric. Tensile tester (vertical electric measuring stand MX-500N and digital force gauge ZTS-100N manufactured by IMADA) is set at a vertical grip interval of 2 cm and a tensile test is performed at a tensile speed of 100 mm / min to determine the tensile shear bond strength. Measured.

図８（ａ），（ｂ）に示すように、比較サンプルＣ，Ｄに比較してサンプルＡ、Ｂの引張せん断接着強さが優れていること、さらにサンプルＢよりサンプルＡの引張せん断接着強さが優れていることが判明した。 As shown in FIGS. 8(a) and (b), the tensile shear bond strength of samples A and B is superior to that of comparative samples C and D, and the tensile shear bond strength of sample A is superior to that of sample B. was found to be superior.

絶縁糸で編成される地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地に外部電極端子を電気的に強固に接続可能な導電性編地の電極接続構造を実現できる任意の用途に用いることができる導電性編地を提供できるようになる。 An external electrode terminal can be electrically and firmly connected to a conductive knitted fabric in which a conductive strip portion is formed by a conductive thread composed of a metal thread or a metal film thread woven into a ground structure knitted with an insulating thread. It becomes possible to provide a conductive knitted fabric that can be used for any application that can realize an electrode connection structure for a conductive knitted fabric.

１：地組織
１ａ：絶縁糸
２：導電性帯状部
２ａ：導電糸
３：導電性編地
４：熱圧着部
５：外部接続端子
８：樹脂製接着シート
１０：電極接続構造
２０：フレキシブルプリント基板
２１:基材
ＣＡ：接続領域

1: Base structure 1a: Insulating yarn 2: Conductive strip 2a: Conductive yarn 3: Conductive knitted fabric 4: Thermocompression bonding part 5: External connection terminal 8: Resin adhesive sheet 10: Electrode connection structure 20: Flexible printed circuit board 21: Substrate CA: Connection area

Claims (5)

絶縁糸で編成される地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地と外部電極端子とを電気的に接続する導電性編地の電極接続構造であって、
前記導電性帯状部は前記絶縁糸に前記導電糸が添糸編みされた添糸編部で構成され、前記添糸編部のうち前記外部電極端子との接続領域で、熱硬化性樹脂に微小導電性粒子を分散させた異方性導電フィルムである樹脂製接着シートを介して前記外部電極端子と熱圧着された熱圧着部を備え、
前記接続領域で前記添糸編部の地組織の表出面の少なくとも一部に前記導電糸を表出させた導電糸表出編成部が形成され、
前記熱圧着部は前記接続領域に形成された導電糸表出編成部のうち前記導電糸の表出側で前記樹脂製接着シートを介して前記外部電極端子と熱圧着されていることを特徴とする導電性編地の電極接続構造。 Conductivity for electrically connecting a conductive knitted fabric in which a conductive belt-like portion is formed by a conductive thread composed of a metal thread or a metal film thread woven into a ground structure knitted with an insulating thread and an external electrode terminal. An electrode connection structure for a knitted fabric,
The conductive belt-shaped portion is composed of a platting knitted portion in which the conductive yarn is platted on the insulating yarn. a thermocompression bonding portion that is thermocompression bonded to the external electrode terminal via a resin adhesive sheet, which is an anisotropic conductive film in which conductive particles are dispersed;
forming a conductive yarn exposed knitting portion in which the conductive yarn is exposed on at least a part of the exposed surface of the base texture of the base yarn knitted portion in the connection region ;
The thermocompression bonding portion is thermocompression bonded to the external electrode terminal through the resin adhesive sheet on the exposed side of the conductive yarn in the conductive yarn exposed knitting portion formed in the connection region. An electrode connection structure for a conductive knitted fabric. 前記導電糸表出編成部は、前記導電糸がフロート編みまたはジャカード編みの何れかで編成された浮き糸編成部で構成されていることを特徴とする請求項１記載の導電性編地の電極接続構造。 2. The conductive knitted fabric according to claim 1 , wherein the conductive yarn exposing knitting portion is composed of a floating yarn knitting portion in which the conductive yarn is knitted by either float knitting or jacquard knitting. Electrode connection structure. 前記導電性帯状部の幅方向に沿って延在する基材に前記導電性帯状部の幅より小さな間隔で前記外部電極端子が複数本配列され、前記導電性帯状部に複数本の前記外部電極端子が熱圧着されていることを特徴とする請求項１または２記載の導電性編地の電極接続構造。 A plurality of the external electrode terminals are arranged on a base material extending along the width direction of the conductive strip portion at intervals smaller than the width of the conductive strip portion, and the plurality of external electrodes are arranged on the conductive strip portion. 3. The electrode connection structure of the conductive knitted fabric according to claim 1, wherein the terminals are thermocompression bonded. 前記絶縁糸が天然繊維糸、再生繊維糸または合成繊維糸と弾性糸との混用糸であることを特徴とする請求項１から３の何れかに記載の導電性編地の電極接続構造。 4. The electrode connection structure of a conductive knitted fabric according to claim 1, wherein said insulating yarn is natural fiber yarn, regenerated fiber yarn, or mixed yarn of synthetic fiber yarn and elastic yarn. 絶縁糸で編成される地組織に編み込まれた金属糸または金属皮膜糸で構成される導電糸により導電性帯状部が形成された導電性編地に外部電極端子を電気的に接続する導電性編地の電極接続方法であって、
前記絶縁糸に前記導電糸を添糸編みして前記導電性帯状部を形成する導電性編地編成ステップと、
前記導電性帯状部と前記外部電極端子との接続領域で、熱硬化性樹脂に微小導電性粒子を分散させた異方性導電フィルムである樹脂製接着シートを介して前記導電性帯状部と前記外部電極端子とを熱圧着する電極接続工程と、
を備え、
前記導電性編地編成ステップは、少なくとも前記接続領域で前記添糸編部の地組織の表出面の少なくとも一部に前記導電糸を表出させた導電糸表出編成部を形成し、
前記電極接続工程は、前記接続領域に備えた導電糸表出編成部のうち前記導電糸の表出側に前記樹脂製接着シートを介して前記外部電極端子と熱圧着することを特徴とする導電性編地の電極接続方法。
Conductive knitting for electrically connecting external electrode terminals to a conductive knitted fabric in which a conductive belt-like portion is formed by conductive yarns composed of metal yarns or metal film yarns woven into a ground structure knitted with insulating yarns. A ground electrode connection method comprising:
a conductive knitted fabric knitting step of plating the conductive yarn on the insulating yarn to form the conductive strip;
In the connection region between the conductive strip portion and the external electrode terminal, the conductive strip portion and the external electrode terminal are connected to the conductive strip portion via a resin adhesive sheet, which is an anisotropic conductive film in which fine conductive particles are dispersed in a thermosetting resin. an electrode connection step of thermocompression bonding with external electrode terminals;
with
The conductive knitted fabric knitting step forms a conductive yarn exposed knitted portion in which the conductive yarn is exposed on at least a part of the exposed surface of the ground structure of the base yarn knitted portion at least in the connection region ,
In the electrode connection step, the conductive yarn exposed side of the conductive yarn exposed knitting portion provided in the connection area is thermally bonded to the external electrode terminal via the resin adhesive sheet. A method for connecting electrodes in a knitted fabric.
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JP2011525043A (en) 2008-06-10 2011-09-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electronic fabric
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JP2011525043A (en) 2008-06-10 2011-09-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electronic fabric
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