200933657 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種電子·資訊機器等之電氣配線所使 用的薄型多芯扁平絕緣電線。 【先前技術】 於機器內配線用之絕緣電線中，以往在絕緣被覆部分 使用鹵素化合物作爲難燃劑。然而，於電線處理之烘烤時 會產生腐蝕性高的鹵素氣體，會變成地球環境污染的嚴重 問題’因此目前進行開發不含鹵素化合物之難燃性絕緣電 線。 另外’企求使各種電子•資訊機器予以小型、輕量化， 且企求使此等電氣配線用之電線以薄型絕緣予以多芯扁平 絕緣化、節省空間化，及提高配線之作業性。 於專利文獻1中，使在含有22〜30重量％醋酸乙烯酯 之乙烯醋酸乙烯酯樹脂中添加有氫氧化鎂之成型用樹脂被 覆於由多芯所形成的導線上，藉由成型滾筒予以成型後， 以r線使該成型用樹脂交聯，作成不含鹵素化合物之難燃 性多芯扁平絕緣電線。 【專利文獻1】日本特開2002-260452號公報 【發明内容】 然而，藉由上述方法所作成的扁平絕緣電線，係在藉 由成型滾筒予以成型後，於交聯前之未交聯硬化狀態下， 在高溫（約4CTC )下產生黏連（電線間相黏）的情形。 本發明有鑑於上述情形者，以提供一種具有難燃性、 200933657 即使於未交聯狀態、高溫下仍不易引起黏連情形的多芯扁 平絕緣電線爲目的。 此外，本發明除上述目的外，以提供一種末端加工性 (多芯扁平絕緣電線之切斷處理、末端加工之絕緣體的剝取 加工處理）亦極爲優異的多芯扁平絕緣電線爲目的。 另外，本發明以提供一種上述多芯扁平絕緣電線之製 造方法爲目的。 赢 本發明之多芯扁平絕緣電線及其製造方法，如下所述。 Ο (1) 一種多芯扁平絕緣電線，其係爲不含鹵素化合物之 難燃性多芯扁平絕緣電線， 其特徵爲絕緣被覆處理係使含有乙烯醋酸乙烯酯共聚 物、脂肪酸醯胺、及金屬氫氧化物之成型用樹脂組成物藉 由交聯處理所形成， 該成型用樹脂組成物中，脂肪酸醯胺之含量爲1〜4重 量％，相對於乙烯醋酸乙烯酯共聚物之總量，醋酸乙烯酯之 U 總量爲4 0〜7 0重量％。 (2) 如上述（1)記載之多芯扁平絕緣電線，其中該成型用 樹脂組成物係不含矽烷偶合劑。 (3) —種多芯扁平絕緣電線之製造方法，其係爲不含鹵 素化合物之難燃性多芯扁平絕緣電線之製造方法， 其特徵爲使含有乙烯醋酸乙烯酯共聚物、脂肪酸醯 胺、及金屬氫氧化物，且脂肪酸醯胺之含量爲1〜4重量％， 相對於乙烯醋酸乙烯酯共聚物之總量’醋酸乙烯酯之總量 爲40〜70重量％之成型用樹脂組成物予以押出成形，形成 200933657 被覆膠帶， 接著，使以規定的間隔並列配列的數個導體自兩面以 該被覆膠帶夾住，藉由成形滾筒予以積層，同時加壓成形 以形成絕緣被覆， 然後，使該絕緣被覆進行交聯處理。 (4)如上述（3)記載之多芯扁平絕緣電線之製造方法，其 中在交聯前後之任一時段，使該多芯扁平絕緣電線切成所 定長度，使兩端可連接於壓接端子下進行未端加工處理。 [發明效果] 本發明之多芯扁平絕緣電線，由於具有難燃性，即使 於未交聯狀態、高溫下仍不易產生黏連情形，且末端加工 性良好，故處理性亦優異。 【實施方式】 [爲實施發明之最佳形態] 於下述中，有關本發明之多芯扁平絕緣電線的實施形 態，參照圖式予以說明。 第1圖係爲本發明之多芯扁平絕緣電線例之簡略圖。 多芯扁平絕緣電線1 0係使以所定間距並列配列的數條導 體11周圍藉由絕緣被覆材料（簡稱爲被覆材料）12進行積層 的構造所形成。 導體 11係由對軟銅或鋁線上實施鍍錫處理等之單 線、或使數條細單線予以撚合的撚線所形成的。另外，被 覆材料12係使下述之成型用樹脂組成物進行積層後，藉由 r線照射，使上述成型用樹脂組成物進行交聯硬化處理所 200933657 形成。而且，照射交聯處理亦可以除r線外之電子線進行 照射。 於下述中，說明有關本發明之多芯扁平絕緣電線所使 用的成型用樹脂組成物（以下亦稱爲本發明之成型用樹脂 組成物）。 本發明之成型用樹脂組成物，含有作爲基體樹脂之乙 烯醋酸乙烯酯共聚物（簡稱：EVA)、作爲平滑劑之脂肪酸醯 胺、作爲難燃劑之金屬氫氧化物。另外，於上述之成型用 樹脂組成物中，相對於乙烯醋酸乙烯酯共聚物之總量，醋 酸乙烯酯（簡稱：VA)之總量調整爲40〜70重量％。此外， 於上述之成型用樹脂組成物中，含有1〜4重量％脂肪酸醯 胺。 於 r 線照射前之未交聯的多芯扁平絕緣電線1 〇，在 高溫（約4(TC )下產生黏連情形，惟藉由使成型用樹脂組成 物中之醋酸乙烯酯總量在上述範圍內，且含有上述範圍之 脂肪酸醯胺，即使在高溫下仍可抑制黏連情形。而且，難 燃性亦佳。 . 黏連情形係除在多芯扁平絕緣電線10之r線照射前 的未交聯狀態下、於保管中溫度變高時產生外，亦會因藉 由r線照射予以交聯時之加熱而產生。 使用上述本發明之成型用樹脂組成物時，使多芯扁平 絕緣電線ίο爲長尺狀下，捲取成線圈狀的狀態，即使藉由 r線照射予以交聯，仍不會藉由交聯時之加熱時產生黏聯 情形，可更爲提高處理性。此外，可於經末端加工處理後 200933657 進行7線照射，亦可在使數條多芯扁平絕緣電線10於集 束的狀態下進行r線照射。 本發明之成型用樹脂組成物，含有作爲難燃劑之金屬 氫氧化物。金屬氫氧化物系難燃劑’藉由熱分解時之吸熱 作用以降低燃燒物之溫度，使基體樹脂難燃化。金屬氫氧 化物以選自氫氧化鎂、六氫氧化錫鋅（ZnSn(OH)6)、氫氧化 鋁較佳，以選自氫氧化鎂、六氫氧化錫鋅（ZnSn(OH)6)更佳。 於本發明之成型用樹脂組成物中，以含有40〜70重量％難 燃劑較佳。難燃劑之含量過少時，難燃性不佳，過多時’ 無法使形成被覆材料之樹脂押出、成形。 本發明之成型用樹脂組成物，含有作爲平滑劑之脂肪 酸醯胺》脂肪酸醯胺以碳數爲18〜22較佳，以油酸醯胺更 佳。藉由使平滑劑爲脂肪酸醯胺，可抑制被覆材料12表面 不均勻的情形，且可抑制在高溫下之黏連情形，同時由於 可提高表面平滑性，故末端加工性亦佳。於本發明之成型 用樹脂組成物中’含有1〜4重量％脂肪酸醯胺。脂肪酸醯 胺之含量少時’無法抑制黏連情形，另外，脂肪酸醯胺之 含量過多時，會有難燃性不隹的情形。 此外，本發明之成型用樹脂組成物，以不含矽烷偶合 劑較佳。一般而言’於扁平絕緣電線中，爲提高拉伸強度 時，在被覆材料中添加矽烷偶合劑，惟本發明人等發現矽 烷偶合劑與導體11及被覆材料12結合時，會使末端加工 性降低。因此，本發明之成型用樹脂組成物中以不添加矽 烷偶合劑較佳。藉此可使導體U與被覆材料12之結合性 -10- 200933657 變佳’使末端加工處理於照射7線前後之任一階段，皆可 大幅地降低被覆材料12之剝取步驟中之導體拉伸力及剝 取後之氣體殘留情形。 於下述中’參照圖面說明第1圖所示之多芯扁平絕緣 電線10之製造方法及變形例。 第2圖係爲本發明第1圖所示之多芯扁平絕緣電線10 的積層步驟例之簡略圖，1 〇係爲多芯扁平絕緣電線，丨1係 爲導體’ 12a係爲被覆膠帶，i 3係爲τ塑模，14係爲成形 滾筒’ 1 5係爲卷軸。被覆膠帶1 2a係使用上述之成形用樹 脂組成物’藉由T塑模13予以押出成形、連續形成未交聯 的薄膜或薄片形狀。卷軸1 5係爲捲取於γ線照射前之未 交聯的多芯扁平絕緣電線1 〇者，原料沒有特別的限制。 數條導體1 1係所定的間距予以並列配列，朝箭頭方向 移送’被覆膠帶1 2a係夾著經並列配列的數條導體1 1之兩 面’移送至成形滾筒14。被覆膠帶12a係藉由成形滾筒14 予以加壓，於夾住導體11下予以一體積層，成形成所定的 形狀。 第3圖係爲成形滾筒1 4與被覆成形狀態之簡略圖。成 形滾筒14係由使被覆膠帶12a之兩面加壓的一對滾筒所形 成’爲在其外周面成形成所定的形狀時形成凹凸l4a。成形 滾筒14之成形表面，被施有氟系樹脂被覆處理等之表面處 理’無法與被覆膠帶12a形成黏接的狀態。而且，成形滾 筒14視其所須具備加熱或冷卻的方法。藉由成形滾筒14, 導體11係藉由黏接或黏合以積層兩面之被覆膠帶12a，藉 -11- 200933657 由共通的被覆材料12予以一體化，形成多芯扁平絕緣電線 10 ° 多芯扁平絕緣電線10，具體例如以厚度約爲、被 覆厚度t約爲〇.2mm。被覆材料12之被覆厚度t，儘可能 在可得所定的絕緣電阻、耐電壓之範圍內，可形成薄型者。 另外’導體1 1之配列間距p係視導體直徑而定，惟符合所 連接的電氣連接器、連接端子之配列間距爲宜，約爲1.5mm 〜5 mm °被覆材料之長度可最小約爲5 mm、最大爲任意長 度。 於上述之積層步驟後，爲賦予藉由被覆膠帶12a間之 積層處理所形成的被覆材料12具有企求的硬度時，多芯扁 平絕緣電線1 0藉由r線照射，使被覆樹脂予以交聯硬化 處理。 第4圖係爲多芯扁平絕緣電線1 〇的γ線照射步驟例 之簡略圖’ 16係表示照射交聯裝置。本發明爲抑制產生黏 連情形時，可使多芯扁平絕緣電線10捲取於卷軸15的狀 態下照射7線。該照射交聯處理之照射量，以20〜200kGy 爲宜，低於20kGy時，無法加熱變形情形，大於200kGy時， 變得過硬。被覆材料12變得相當硬時，端子連接等之實裝 性變得不佳。於照射交聯時’亦可使用除7線外之電子線。 其次，多芯扁平絕緣電線10係於藉由r線照射予以 交聯後，進行末端加工處理。第5圖及第6圖係表示多芯 扁平絕緣電線10外的其他成形形狀與末端加工形狀例之 圖。 -12- 200933657 第5(A)圖係爲使一面（圖中爲下面）爲平坦的多芯扁平 絕緣電線101。該多芯扁平絕緣電線101，可在平坦面20 上施予黏合劑’且黏接固定於配線機器內之壁面等，使配 線固定。而且，藉由事先在各導體被覆連接部設置切槽21， 可以該切槽21使得各導體間容易分離。 第5(B)圖係表示第5(A)圖之多芯扁平絕緣電線1〇1之 末端加工形狀’除去端部之被覆材料121，形成連接導體 22者。視連接形態而定，利用切槽21，分離成單芯之絕緣 電線，且使導體間隔擴大’可容易進行焊接連接等之電氣 連接。 第6(A)圖係爲以使各導體之被覆容易分離的連接部23 予以一體化的多芯扁平絕緣電線102。連接部23之兩端上 設置容易切斷的切槽24，可藉由切取連接部23,形成單芯 的絕緣電線。可分離單芯絕緣電線之點，係與第5 (A)圖相 同者，適合於導體之配列間距大，且適合第6(C)圖所示之 壓接端子連接。 第6(B)圖係表示第6(A)圖之多芯扁平絕緣電線1〇2的 末端加工形狀。使端部之連結部23部分除去成以25所示 之U字形，且形成端部被被覆的狀態之連接片26。該連接 片26係如第6(C)圖所示，在電氣連接時多數被使用的習知 壓接端子27上，藉由自箭頭方向壓插，使被覆材料122自 動被突破，形成電氣連接。 如上所述’本實施形態係於γ線照射後進行末端加工 處理，惟由於本發明之多芯扁平絕緣電線10於製造時之處 -13- 200933657 理性優異’故末端加工處理可於r線照射前後之任一階段 進行，良好地製造。 其次，有關本發明之多芯扁平絕緣電線，以更具體例 予以說明。 藉由上述說明之製造方法，以下述表1所示之配合作 成扁平絕緣電線（實施例1〜6、比較例1〜3)。而且，於下 述配合中，「％」以重量爲基準。 評估方法 (1) 難燃性試驗 藉由進行VW-1試驗（UL1581規格），進行難燃性試驗。 (2) 黏連情形測定 以薄片狀態、使薄片間在50°C下進行壓製5分鐘後， 進行1 80度剝離試驗，測定密接力。 (3) 末端加工性 如第7圖所示，稍微以手剝離所作成的多芯扁平絕緣 0 電線10之被覆材料12，包住導體11下稍微拉出。然後， 使導體11突出’僅以被覆材料12所成的多芯扁平絕緣電 線10之相反側的部分以夾子17固定。繼後，使僅上述導 體11所成的部分包住，自被覆材料12拉出的方向拉伸， 測定此時之導體拉出力。而且，本實施例如第7圖所示， 以1芯的狀態測定導體拉出力，惟亦可在沒有分離成丨芯 下、以多芯的狀態進行測定。 使用本發明之成型用樹脂組成物所作成的多芯扁平絕 緣電線（實施例1〜5)，VW-1試驗（UL1581規格）皆佳。另外， -14- 200933657 於黏連情形測定時，密接力$ 30g/25mm係佳，捲取於卷軸 之未交聯電線藉由r線照射予以交聯硬化時，沒有產生黏 連情形。而且，於末端加工性中，導體拉出力S 1.0kg/芯， 沒有產生殘渣殘留情形。 實施例6之多芯扁平絕緣電線，由於使用本發明之成 型用樹脂組成物所作成，難燃性及黏連性優異，惟由於含 有矽烷偶合劑，結果末端加工性不佳。 比較例1由於VA含有率過低，故難燃性爲NG。 比較例2由於不含脂肪酸醯胺，結果黏連性不佳。比 較例3由於脂肪酸醯胺之含量過多，結果難燃性不佳。 ❹ -15- 200933657 【表1】 實施 例1 實施 例2 實施 例3 實施 例4 實施 例5 食施 例6 比較 例1 比較 例2 比較 例3 EVA(70%) 100 75 50 25 65 100 1〇〇 1〇〇 EVA(33%) 25 50 75 35 1〇〇 脂肪酸醯胺 矽院偶去劑 10 10 10 10 3 10 10 15 其他 劑(金屬氫 氧化物）、抗老 化劑） 200 200 200 200 200 1 200 200 200 200 VA含率 70% 61% 52% 42% 57% 70% 33% 70% 70% 脂肪酸酿胺含率 3.2% 3.2% 3.2% 3.2% 1% 3.2% 3.2% 0 4.8% 難燃性 (UL-1581 VW-1) OK OK OK OK OK OK NG OK NG 黏連情形 未端加工性 合格範圍： ^30g/25mm 28 22 11 8 30 26 2 110 20 合格範圍： Sl.OkgAK 0.77 0.7 0.67 0.63 0.9 2.61 0.55 0.69 0.61 【圖式簡單說明】 第1圖係爲本發明之多芯扁平絕緣電線例之簡略圖。 第2圖係爲本發明之多芯扁平絕緣電線的積層步驟例 之簡略圖。 第3圖係爲本發明之多芯扁平絕緣電線的成形滾筒與 被覆成形狀態例之簡略圖。 © 第4圖係爲本發明之多芯扁平絕緣電線的r線照射步 驟例之簡略圖。 第5圖係爲本發明之多芯扁平絕緣電線的成形形狀與 末端加工形狀例之圖。 第6圖係爲本發明之多芯扁平絕緣電線的成形形狀與 末端加工形狀例之圖。 第7圖係爲以實施例進行的導體拉出力之測定方法的 簡略圖。 -16- 200933657 【主要元件符號說明】 10(101 ' 102) 多芯扁平絕緣電線 11 導體 12(121 、 122) 被覆材料 12a 被覆膠帶 14 成形滾筒 16 照射交聯裝置 ❹ -17-[Technical Field] The present invention relates to a thin multi-core flat insulated electric wire used for electric wiring of an electronic information machine or the like. [Prior Art] In an insulated wire for wiring in a machine, a halogen compound has conventionally been used as a flame retardant in the insulating coating portion. However, when a wire is treated and baked, a highly corrosive halogen gas is generated, which becomes a serious problem of global environmental pollution. Therefore, development of a flame-retardant insulated wire containing no halogen compound has been carried out. In addition, it is required to reduce the size and weight of various electronic and informational devices, and to make the wires for such electrical wirings to be insulated with a thin core, to save space, and to improve wiring workability. In Patent Document 1, a molding resin to which magnesium hydroxide is added to an ethylene vinyl acetate resin containing 22 to 30% by weight of vinyl acetate is coated on a wire formed of a plurality of cores, and is molded by a molding roll. Thereafter, the molding resin was crosslinked by an r-line to form a flame-retardant multi-core flat insulated wire containing no halogen compound. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2002-260452. SUMMARY OF THE INVENTION However, the flat insulated electric wire produced by the above method is an uncrosslinked hardened state before cross-linking after being molded by a forming drum. Next, a case where adhesion occurs at a high temperature (about 4 CTC) (the wires are sticky). The present invention has been made in view of the above circumstances, and has an object of providing a multi-core flat insulated wire having flame retardancy, 200933657, even in an uncrosslinked state and at a high temperature, which is not likely to cause adhesion. Further, in addition to the above object, the present invention has an object of providing a multi-core flat insulated electric wire which is excellent in end workability (cutting treatment of a multi-core flat insulated electric wire and stripping processing of an end-processed insulator). Further, the present invention has an object of providing a method of producing the above-described multi-core flat insulated electric wire. The multi-core flat insulated wire of the present invention and the method of manufacturing the same are as follows. Ο (1) A multi-core flat insulated wire which is a flame-retardant multi-core flat insulated wire containing no halogen compound, characterized in that the insulating coating process comprises ethylene vinyl acetate copolymer, fatty acid decylamine, and metal The resin composition for forming a hydroxide is formed by a crosslinking treatment, and the content of the fatty acid guanamine in the resin composition for molding is 1 to 4% by weight, based on the total amount of the ethylene-vinyl acetate copolymer, acetic acid The total amount of U of the vinyl ester is from 40 to 70% by weight. (2) The multi-core flat insulated wire according to the above (1), wherein the molding resin composition does not contain a decane coupling agent. (3) A method for producing a multi-core flat insulated electric wire, which is a method for producing a flame-retardant multi-core flat insulated electric wire containing no halogen compound, characterized in that it contains an ethylene vinyl acetate copolymer, a fatty acid decylamine, And a metal hydroxide, and the content of the fatty acid guanamine is 1 to 4% by weight, and the molding resin composition is 40 to 70% by weight based on the total amount of the ethylene-vinyl acetate copolymer. By extrusion molding, a 200933657 coated tape is formed, and then a plurality of conductors arranged side by side at a predetermined interval are sandwiched by the coated tape from both sides, laminated by a forming roll, and pressure-molded to form an insulating coating, and then the insulating coating is formed. The insulation coating is subjected to crosslinking treatment. (4) The method for producing a multi-core flat insulated electric wire according to the above (3), wherein the multi-core flat insulated electric wire is cut into a predetermined length at any time before and after the cross-linking so that both ends can be connected to the crimp terminal The end processing is performed. [Effect of the Invention] The multi-core flat insulated electric wire of the present invention has a flame retardancy, is not easily adhered even in an uncrosslinked state and a high temperature, and has excellent end workability, so that the handleability is also excellent. [Embodiment] [Best Mode for Carrying Out the Invention] Hereinafter, an embodiment of a multi-core flat insulated wire according to the present invention will be described with reference to the drawings. Fig. 1 is a schematic view showing an example of a multi-core flat insulated wire of the present invention. The multi-core flat insulated wire 10 is formed by laminating a plurality of conductors 11 arranged in parallel at a predetermined pitch by an insulating coating material (abbreviated as a covering material) 12. The conductor 11 is formed by a single wire which is subjected to tin plating treatment on a soft copper or aluminum wire, or a twisted wire which is formed by twisting a plurality of thin single wires. In addition, the coating material 12 is formed by laminating the following resin composition for molding, and then subjecting the resin composition for molding to cross-linking and hardening treatment by means of r-ray irradiation. Further, the irradiation crosslinking treatment can also be performed by an electron beam other than the r line. In the following, a resin composition for molding used in the multi-core flat insulated electric wire of the present invention (hereinafter also referred to as a resin composition for molding of the present invention) will be described. The resin composition for molding of the present invention contains an ethylene vinyl acetate copolymer (abbreviated as EVA) as a matrix resin, a fatty acid amide as a smoothing agent, and a metal hydroxide as a flame retardant. Further, in the above-mentioned molding resin composition, the total amount of vinyl acetate (abbreviation: VA) is adjusted to 40 to 70% by weight based on the total amount of the ethylene vinyl acetate copolymer. Further, the above-mentioned resin composition for molding contains 1 to 4% by weight of a fatty acid guanamine. The uncrosslinked multi-core flat insulated wire 1 前 before the irradiation of the r-line is bonded at a high temperature (about 4 (TC), except that the total amount of vinyl acetate in the resin composition for molding is in the above The fatty acid amide containing the above range can inhibit the adhesion even at high temperatures. Moreover, the flame retardancy is also good. The adhesion is in addition to the r-line irradiation of the multi-core flat insulated wire 10. In the uncrosslinked state, when the temperature is high during storage, it is also caused by heating by cross-linking irradiation. When the resin composition for molding of the present invention described above is used, the multi-core flat insulation is used. The electric wire ίο is in a state of a long rule and is wound into a coil shape. Even if it is crosslinked by irradiation with an r-ray, it does not cause sticking by heating at the time of crosslinking, and the handleability can be further improved. 7-line irradiation may be performed after the end processing, 200933657, and the plurality of multi-core flat insulated wires 10 may be subjected to r-ray irradiation in a state of being bundled. The resin composition for molding of the present invention contains a flame retardant. Metal hydroxide The metal hydroxide-based flame retardant 'is slowed down by the endothermic action during thermal decomposition to lower the temperature of the combustion product. The metal hydroxide is selected from magnesium hydroxide, zinc hexoxide (ZnSn ( OH) 6), aluminum hydroxide is preferably selected from magnesium hydroxide and zinc hexoxide (ZnSn(OH)6). The resin composition for molding of the present invention contains 40 to 70% by weight. When the content of the flame retardant is too small, the flame retardancy is not good, and when it is too large, the resin forming the coating material cannot be extruded and formed. The resin composition for molding of the present invention contains the fatty acid as a smoothing agent. The guanamine "fatty acid guanamine has a carbon number of 18 to 22, preferably oleic acid decylamine. By making the smoothing agent a fatty acid guanamine, the surface unevenness of the coating material 12 can be suppressed, and the temperature can be suppressed at a high temperature. In the case of the adhesion, the end surface processability is also good because the surface smoothness can be improved. In the resin composition for molding of the present invention, 'containing 1 to 4% by weight of fatty acid decylamine. When the content of fatty acid decylamine is small' Can not inhibit the adhesion situation, in addition, When the content of the fatty acid decylamine is too large, the flame retardancy may be unsatisfactory. Further, the resin composition for molding of the present invention preferably contains no decane coupling agent. Generally, in the case of a flat insulated electric wire, it is improved. In the case of the tensile strength, the decane coupling agent is added to the coating material. However, when the inventors found that the decane coupling agent is combined with the conductor 11 and the coating material 12, the terminal workability is lowered. Therefore, the resin composition for molding of the present invention is obtained. It is preferred that no decane coupling agent is added, whereby the bonding of the conductor U to the covering material 12 can be made better - -10-200933657 is better than the end processing can be performed at any stage before and after the irradiation of the 7-line, and the coating can be greatly reduced. The tensile force of the conductor in the stripping step of the material 12 and the gas remaining after the stripping. The manufacturing method and modification of the multi-core flat insulated wire 10 shown in Fig. 1 will be described below with reference to the drawings. Fig. 2 is a schematic view showing an example of a lamination step of the multi-core flat insulated electric wire 10 shown in Fig. 1 of the present invention, wherein the 〇 is a multi-core flat insulated electric wire, and the 丨 1 is a conductor ' 12a is a coated tape, i 3 is a tau mold, and 14 is a forming drum '1 5 is a reel. The coated tape 1 2a is formed by extrusion molding using the above-described molding resin composition, and continuously forms an uncrosslinked film or sheet shape. The reel 15 is a multi-core flat insulated electric wire 1 which is uncrosslinked before being irradiated by the gamma ray, and the raw material is not particularly limited. The plurality of conductors 1 1 are arranged side by side at a predetermined pitch, and the coated tape 1 2a is transferred to the forming drum 14 by sandwiching both sides of the plurality of conductors 1 1 arranged side by side in the direction of the arrow. The coated tape 12a is pressurized by the forming drum 14, and a volume layer is formed under the sandwiched conductor 11 to form a predetermined shape. Fig. 3 is a schematic view showing a state in which the forming drum 14 and the covering are formed. The forming drum 14 is formed by a pair of rollers which pressurize both surfaces of the covering tape 12a. When the outer peripheral surface is formed into a predetermined shape, the unevenness 14a is formed. The surface of the forming surface of the forming drum 14 is subjected to a surface treatment such as a fluorine resin coating treatment, and is in a state in which it cannot be bonded to the covering tape 12a. Moreover, the forming drum 14 is required to have a heating or cooling method. By forming the roller 14, the conductor 11 is laminated or coated to cover the two-sided coated tape 12a, and is integrated by the common covering material 12 by -11-200933657 to form a multi-core flat insulated wire 10° multi-core flat insulation. Specifically, the electric wire 10 has a thickness of, for example, a coating thickness t of about 0.2 mm. The coating thickness t of the covering material 12 can be formed as thin as possible within a range of a predetermined insulation resistance and withstand voltage. In addition, the arrangement pitch p of the conductors 1 is determined by the diameter of the conductors, but it is suitable for the arrangement of the electrical connectors and the connection terminals to be connected, and the length of the coating material is about 1.5 mm to 5 mm. Mm, the maximum is any length. After the coating step 12 is applied to the coating material 12 formed by the lamination treatment between the covering tapes 12a, the multi-core flat insulated electric wire 10 is cross-linked by the r-ray irradiation to harden the coated resin. deal with. Fig. 4 is a schematic view showing an example of a gamma ray irradiation step of a multi-core flat insulated electric wire 1 ’. 16 shows an irradiation cross-linking device. In the present invention, in order to suppress the occurrence of adhesion, the multi-core flat insulated electric wire 10 can be wound up on the reel 15 to irradiate 7 lines. The irradiation amount of the irradiation crosslinking treatment is preferably 20 to 200 kGy, and when it is less than 20 kGy, the deformation cannot be performed, and when it is more than 200 kGy, it becomes too hard. When the covering material 12 becomes quite hard, the mountability of the terminal connection or the like becomes poor. When irradiating cross-linking, an electron beam other than 7 lines can also be used. Next, the multi-core flat insulated electric wire 10 is subjected to end processing by cross-linking by r-ray irradiation. Fig. 5 and Fig. 6 are views showing other examples of the shape and end processing shape of the outer core of the multi-core flat insulated wire 10. -12- 200933657 Fig. 5(A) is a multi-core flat insulated wire 101 in which one side (lower in the figure) is flat. The multi-core flat insulated wire 101 can be adhered to the wall surface of the wiring machine by applying a binder ‘ on the flat surface 20 to fix the wire. Further, by providing the slits 21 in the respective conductor-covered connecting portions in advance, the slits 21 can easily separate the conductors. Fig. 5(B) shows the end-processed shape of the multi-core flat insulated electric wire 1〇1 of Fig. 5(A), and the covering material 121 of the end portion is removed, and the connecting conductor 22 is formed. Depending on the connection form, the slit 21 can be separated into a single-core insulated wire, and the conductor spacing can be increased. An electrical connection such as soldering can be easily performed. The sixth (A) diagram is a multi-core flat insulated wire 102 in which the connecting portions 23 for easily separating the coating of the respective conductors are integrated. A notch 24 which is easily cut is provided at both ends of the connecting portion 23, and a single-core insulated wire can be formed by cutting the connecting portion 23. The point at which the single-core insulated wire can be separated is the same as that in the fifth (A) diagram, and is suitable for the arrangement of conductors with a large pitch, and is suitable for the crimp terminal connection shown in Fig. 6(C). Fig. 6(B) shows the end-machined shape of the multi-core flat insulated wire 1〇2 of Fig. 6(A). The connecting portion 23 of the end portion is partially removed into a U-shape shown by 25, and a connecting piece 26 in a state in which the end portion is covered is formed. As shown in FIG. 6(C), the connecting piece 26 is automatically inserted into the conventional crimp terminal 27, which is used at the time of electrical connection, by the push-in direction from the direction of the arrow, and the covering material 122 is automatically broken to form an electrical connection. . As described above, the present embodiment is subjected to the end processing after the gamma ray irradiation, but since the multi-core flat insulated electric wire 10 of the present invention is excellent in the manufacture at the time of -13-200933657, the end processing can be performed on the r-line irradiation. It is carried out at any stage before and after, and is manufactured well. Next, the multi-core flat insulated wire of the present invention will be described in more specific examples. According to the manufacturing method described above, the flat insulated electric wires (Examples 1 to 6 and Comparative Examples 1 to 3) were bonded together as shown in Table 1 below. Further, in the following cooperation, "%" is based on the weight. Evaluation method (1) Flame retardancy test The flame retardancy test was carried out by performing the VW-1 test (UL1581 specification). (2) Measurement of adhesion The film was pressed in a sheet state at 50 ° C for 5 minutes, and then subjected to a 180 peel test to measure the adhesion. (3) End workability As shown in Fig. 7, the covering material 12 of the multi-core flat insulation 0 electric wire 10 which was slightly peeled off by hand was slightly pulled out under the conductor 11. Then, the conductor 11 is protruded. Only the portion on the opposite side of the multi-core flat insulated wire 10 formed of the covering material 12 is fixed by the clip 17. Thereafter, only the portion formed by the above-described conductor 11 was wrapped, and the material was pulled out from the direction in which the covering material 12 was pulled out, and the conductor pull-out force at this time was measured. Further, in the present embodiment, as shown in Fig. 7, the conductor pull-out force is measured in a state of one core, but it may be measured in a multi-core state without being separated into a core. The multi-core flat insulating wire (Examples 1 to 5) made using the molding resin composition of the present invention was excellent in the VW-1 test (UL1581 specification). In addition, -14- 200933657, when the adhesion was measured, the adhesion force was 30 30g/25mm, and when the uncrosslinked wire taken up on the reel was cross-linked and hardened by the r-ray irradiation, no adhesion occurred. Further, in the end workability, the conductor pull-out force S was 1.0 kg/core, and no residue remained. The multi-core flat insulated wire of the embodiment 6 is excellent in flame retardancy and adhesion by the use of the resin composition for molding of the present invention, but the terminal processability is poor due to the inclusion of the decane coupling agent. In Comparative Example 1, since the VA content was too low, the flame retardancy was NG. In Comparative Example 2, since the fatty acid guanamine was not contained, the adhesion was poor. In Comparative Example 3, the content of the fatty acid guanamine was too large, resulting in poor flame retardancy. ❹ -15- 200933657 [Table 1] Example 1 Example 2 Example 3 Example 4 Example 5 Food Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 EVA (70%) 100 75 50 25 65 100 1〇 〇1〇〇EVA (33%) 25 50 75 35 1 〇〇 fatty acid amide 矽 偶 10 10 10 10 10 10 10 10 10 15 Other agents (metal hydroxide), anti-aging agent) 200 200 200 200 200 1 200 200 200 200 VA content 70% 61% 52% 42% 57% 70% 33% 70% 70% Fatty acid amine content 3.2% 3.2% 3.2% 3.2% 1% 3.2% 3.2% 0 4.8% Flame retardant Sex (UL-1581 VW-1) OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ 0.63 0.9 2.61 0.55 0.69 0.61 [Simple description of the drawings] Fig. 1 is a schematic view showing an example of a multi-core flat insulated wire of the present invention. Fig. 2 is a schematic view showing an example of a lamination step of a multi-core flat insulated wire of the present invention. Fig. 3 is a schematic view showing a state in which a forming drum and a covering of a multi-core flat insulated wire of the present invention are formed. © Fig. 4 is a schematic view showing an example of the r-line irradiation step of the multi-core flat insulated wire of the present invention. Fig. 5 is a view showing an example of the shape and end processing shape of the multi-core flat insulated wire of the present invention. Fig. 6 is a view showing an example of the shape and end processing shape of the multi-core flat insulated wire of the present invention. Fig. 7 is a schematic view showing a method of measuring the conductor pull-out force by the embodiment. -16- 200933657 [Description of main component symbols] 10(101 ' 102) Multi-core flat insulated wire 11 Conductor 12 (121, 122) Covering material 12a Covering tape 14 Forming roller 16 Irradiation cross-linking device ❹ -17-