A6 214629 B6 五、發明説明（) 本發明傜關於一種軟性基板上塗佈敖光膜之製法，主 要偽將感光膜直接塗佈於軟性基板上的製造方法，而為一 實用性之設計。 軟性印刷電路板發展近二十年以來，有長足的進步， 市場之需求量每年可達三億五千萬美元左右，而其用途可 用於玩具、電腦業及電話業、汽車業等等。 軟性電路板之裂作，必須由軟性基板開始，此為聚酯 膜或聚亞醯胺膜與銅箔壓合而成，而基板上電路之形成則 主要經導電嘐或乾膜曝光頭像等方法完成，其中導電嘐是 由纲板印刷法直接将線路印在基材上，製程雖簡單，卽因 耗費人工，故R適合較粗課路泛少量的製作，下易生産自 動il:,而乾膜則是用來製造較細線路，可高度自動化生産 ，專供高级電子産品的用途。乾膜之製作起源於美國杜邦 公司，其製程是將液態感光樹脂塗佈在聚S旨膜上，乾燥後 ，再覆以聚乙烯膜，使乾膜成形在中間而為三明治之夾層 结構，使用時必須先将聚乙烯膜撕去，外露之乾膜以熱壓 法阽合至軟性基板銅箔上，再進行紫外線曝光頭像等一条 列步驟而得線路，上述習用的傳統方法卻存在箸下述的若 干缺點： ⑴乾膜之聚乙烯膜在操作時，必須撕離丢棄，不但浪 費而且造成環保問題。 ⑵乾膜與軟性基板之熱壓阽合，須投資機器設備，佔 據廠房空間，消耗能源與人工，生産時前後段原料（乾膜 本氓張又度適用中國國家標準（CNS〉甲4規格（210 X 297 乂蛩） (請先閏讀背面之注意事項再螭寫本頁) 裝 訂 經濟部中央標準局费工消費合作钍印踅 82.3. 40.000 A6 B6 314629 五、發明説明（） 與軟板）之耗損。 (3)軟性且高低不平之表面，常使乾膜不易滲透而造成 其密箸性降低，進而使線路有斷路或短路不良情況的發生 i ⑷軟性電路板啜必須向兩種供應商（軟板及乾膜）採 購，易造成作業上之困擾； 因此，上述習用方法的實用性並不佳，而有加以改良 的必要。 本發明人即是針對上述習用製造軟性基板的缺點而深 入構思，並積極研究改進之道，而經長期之努力、試作而 閲發、設計出本發明。 本發明之主要目的，乃在於提供一種軟性基板上塗佈 感光膜之製法，偽將感光性樹脂直接塗佈於軟性基板銅箔 上，绖乾燥後，乾摸因而成形於軟性基板上，其步驟可分 為二種：（1)將戰光性樹脂塗在軟性基板銅萡面上乾燥後， 绖8 0 °C左右之熱風同時阽合聚酷膜而複捲成産品，（2)上 膠以前先在銅箔背面之聚亞13胺膜表面塗一層很薄之離型 劑，經乾燥後，銅箔面再塗威光性樹脂，此時不須經聚酯 膜之阽合而可直接進行複捲，再經分條之手缠，可得不同 寬幅之成捲軟板，若以上述兩種方法，軟性電路板之製造 省卻聚乙烯膜的原料，又因液態戲光樹脂直接塗佈於銅箱 面，其上的任何凹凸不平處，部可均勻塗佈，使乾燥後之 薄膜有更佳之密箸性，而可省略熱壓貼合設備及製程，更 本呔張尺度適用中國國家標準（CNS)甲4規烙（210 X 297公坌） (靖先閱讀背面之注意事項再項寫本頁) 装. 訂 經濟部中央標準局8工消费合作社印 82.3. 40,000 314629 A6 B6 五'發明説明（ 可凸頸出軟性 、實用之新穎 Η為便於 其實質 (一） 第一圖 第二圖 第三圖 第四圖 第五圖 第六圖 第七圖 第八圖 第九圖 第十圖 第+ — 功效、 圖式部 傜本發 傜本發 偽本發 偽本發 偽本發 偽本發 偽本發 偽本發 偽本發 偽本發 圖偽本 基板塗佈豉光膜製法的優點，堪稱係一進步 設計。 貴審査委員能進一步瞭解本創作之待歡及 内容，持佐以圖式，詳為闡明如后： 份 明之製造流程圖。 明之另一製造流程圖。 明之過濾糸統示意圖。 明之産品剖視圖》 明之另一産品剖視圖。 明之塗佈設備示Ε 1。 明之凹版滾锅塗佈裝置示意圖。 明之繞線刮障塗佈装置示意圖。 明之下部供膠式切角滾輪塗頭之示意圖。 明之上部供嘐式切角滾輪塗頭之示意圖。 發明之模頭塗頭示意圖。 (請先閲讀背面之·;±意事項再填寫本頁) 丨裝- .線. 經濟部中央標準局员工消费合作社印κ (二）圖號部份 (1 )原液槽 (3 )濾心 (5 )聚亞醯胺膜 (7 )銅箔 (9 )聚酯膜 2 )解浦 4 )球形閥 6 )接著劑 8 )乾膜光阻 1 0 )離型劑層 衣纸張尺^逯用中國1家標準（CNS)甲4規格（2iO X 297 n) 82.3. 40,000 3:1^639 五、發明説明（） (1 1 )基材捲出一 (1 3 )離型劑乾燥箱 (1 5 )乾膜塗頭 (1 7 )基材捲出三 (1 9 )複捲機 (2 1)膠盤 (2 3 )橡皮輪 (2 5 )塗佈滾輪 (251)繞線刮棒 (27)滾輪 (29) ψ} fi (31)幫浦 本發明偽為一種軟性基板 —、二圖所示），主要包括（1) 複捲，（5)分跷，⑹儲藏等步驟 (1)過濾条統（如第三圖中 槽1 )、幫浦（2 )、逾心 等所組成，其中，幫浦壓力以 流量控制在4 5 — 1 0 0 g/m 之鐵氟龍管注入上膠槽 1/3 保持穩定，忽快忽慢之供膠速 本纸張尺度逯用中國国家標準（CN-S)甲〇見烙（210 X 297 'α'Ϊ ) A6 B6 經濟部中央標準局3工消费合作社印制衣 (1 2 )離型劑塗頭 (1 4 )基材捲出二 I 1 6 )乾膜乾燥箱 (1 8 )壓合機 (2 0 )凹版滾輪 (22)諏節刮刀 (2 4 )烘箱 (2 6 )烘箱 (28)切角滾輪 (30)切角滾輪 (32)模口 上塗佈烕光膜之製法ί如第 過濾，⑵上膠，（3)烘乾，（4) ，依産品之不同可分為二類 所示），其主要傜由一匣液 (3 )及若干球形閥（4 ) 不超過8 Kg/CM2為限，其 i η分別以二支約5 m m 口徑 及2/3長度之處，流量儘量 度會使塗佈之乾膜厚度不均 (靖先《讀背面之注意事項再塡寫本頁) 82.3. 40,000 A6 314629 _B6_ 五、發明説明（） ,並影響外觀； (2)上膠塗佈，軟性印刷線路基板塗佈乾膜設備為：軟 性印刷線路基板塗佈乾膜，依産品組合之不同可分為二類 ,如第四、五圖中所示，第一種與一般乾膜光阻直接壓合 於軟性印刷線路基板的结溝相同，偽由底部至頂部依序設 由聚亞酸胺膜（5 )、接著劑（6 )、銅箔（7 )、乾膜 光阻（8 )及聚酯膜（9 )等所組成；第二種偽由聚亞醯 胺膜（5 )、接著劑（6 )、網萡（7 )、乾膜光阻（8 )及離型劑層（1 〇 )等組成，而於乾膜光阻（8 )上無 聚酯膜（9 ),在聚亞韹胺膜(δ )之底面增加了雞型劑 層(10)。 而塗佈設備之示意圖（如第六圖中所示），偽由下述 结溝組成，基材捲出一 （1 1 )、離型劑塗頭（1 2 )、 離型劑乾燥箱（13)、基材捲出二（14)、乾膜塗頭 (15)、乾膜乾燥箱（16)、基材捲出三（1 7 )、 壓合機（1 8 )、後捲機（1 9 )。以下就離型割塗頭（ 1 2 )及乾膜塗頭（1 5 )詳細詋明如下： 離型劑塗佈（乾量）學度介於〇 . 〇 5至1 . 0微米 之間，常見的塗佈方式有凹販塗頭及繞線刮棒塗頭。凹版 塗頭的结構，如第七圖中所示，凹版滾輪（2 0 )經膠盤 (21)中沾滿離型劑，調節刮刀（2 2 )把販紋以外的 輪面刮乾淨，橡皮輪（23)把版紋内的離型劑轉移至聚 亞蘧胺膜表面，經烘箱（2 4 )乾燥，即完成離型劑之塗 本纸張又戍適用中國園家標準（CNS)甲4現格（210 X 297 乂坌 * ' Ji --------- I *--- I -------------^-------訂 線 (請先閱讀背面之注意事項再塡寫本頁) 經濟部中央標準局貝工消費合作社印製 82,3. 40,000 214639 A6 經濟部中央標準局8工消費合作社印¾ B6 五、發明説明（） 佈，此種塗頭的優點是塗佈重童·較為穩定，但塗佈结果因 凹販滾輪之清潔不佳，離型劑之流變性質等，呈現不均勻 情形。 另一種離型劑塗佈方法，使用繞線刮棒塗頭，如第八 圖所示的结構，塗佈滾輪把離型劑塗佈至聚亞醯胺膜表面 ，藉繞線刮棒（251)把多餘的離型劑刮除達到適當塗 佈量，經烘箱（26)乾燥即完成塗佈，此種塗佈方法表 面較平滑，但塗佈重量易受張力之變化而影鎏，另外使用 前後均應清理繞線刮棒，以免影嚮塗佈的準確性。 塗佈工程可供選擇的塗頭有很多種，其中適合乾膜塗 佈的塗頭，分別是下部供嘐式切角滾_塗頭、上部供膠式 切角滾輪塗頭、模頭塗頭等（如第九、十、十一圖中所示 )； 下部供膠切角滾輪塗頭（如第九圖中所示），由滾輪 (27)帶膠至基材表面（銅箔面），由切角滾輪（2 8 )刮除多餘的膠，完成塗佈，此塗頭的優點是適合塗佈的 粘度範圍很大，但因膠盤為開放式，溶劑易在塗佈時揮發 ,故較適合塗佈乳膠或高沸點溶劑之塗佈液。 上部供膠切角滾輪塗頭（如第十圖中所示），由基材 從膠槽（29)帶膠經切角滾輪（3 0 )刮除多餘的膠， 完成塗佈，是十分簡單的結構，但不適合塗佈較低粘度之 塗佈液，膠槽可做適當密封，故能塗佈中等沸點之塗佈液 〇 -8 ~ (請先閱讀背面之注意事項再填寫本頁) 装. 訂. 線. 本纸張尺度逯用中國國家標準（CNS)甲4規恪（2iO X 297W$) 82.3. 40,000 A6 經濟部中央標準局8工消费合作社印 B6_ 五、發明説明（） 模頭塗頭是較新穎的塗佈方式（如第+ —圖中所示） ,由定量幫浦（3 1 )把嘐從模口 （ 3 2 )擠出，塗佈於 基材表面，與前二種塗頭不同，是前計量的塗佈方法，具 有許多優點，如可高速塗佈，可準確控制塗膜厚度，可塗 佈低沸點之塗佈液等；其缺點為塗頭選擇性高（卽不能適 合於不同流變性質之塗佈液）且塗頭成本高。 由於上膠量可控制乾膜厚度，不論膠槽之選擇為何， 上膠頭與滾輪帶動之軟性基板間隙，以厚薄規測量在1 0 0徹米至1 5 0微米之間，則塗佈之乾膜厚度可為3 0徹 米至5 0徹米之間，帶動軟性基板之滾輪表面，務必擦拭 乾淨，以免造成軟板突起，而無法沾上钱光樹脂。 (3)上膠之基板立即進入烤葙進行乾燥，烤葙全長十t 米，分為八値區域，每磊域的溫度控制範圍如下： 1 2 3 4 5 6 7 8 4 0 - 6 0 4 5 - 6 5 δ 0 -70 55-75 60-80 60-80 60-80 60-90 °C 烤箱溫度之高低依塗佈的速度及配方中溶劑的種類及含置 而作調整，通常塗佈速度愈快，溫度須愈高，但不可高於 1 〇 〇 °C ,以免乾膜本身因溫度過高而硬化變質，若配方 中之溶劑為低沸點，且固形份增高，則溫度可調整到低範 圍内進行烘乾，塗佈速度可由2米/分到2 0米/分； 基板在蓮轉操作時之張力相當重要，尤其是兩邊之張 力若相差太大，則造成複捲時之皴摺，另外前後張力不均 則易造成下一步驟分條之不良； -9- (請先閱讀背面之;±意事項再塡寫本頁) 丨装. 訂 線· 本氓張H適用中國國家標準（CNS) T 4規络（2i0 X 297 乂犮 82.3. 40,000 Α6 Β6 五'發明説明（） ⑷複捲 a .軟性基板上嘐經烘乾後，在乾膜上必須貼上聚酯 膜再複捲而成，但此時乾膜表面相當乾燥加上聚酯膜較硬 ，兩者之間的貼合在室溫下相當不易，因此阽合之前在軟 性基板之背面以熱風吹送溫度控制在8 0 — 1 0 0°C之間 ，使乾膜易與聚酯膜立卽阽合，如此才可得到無氣泡且表 面平整不易脱落之三明治型式之乾膜軟板； b .若在塗佈感光樹脂之前，軟板背面先塗離型劑， 通常可用凹板滾茼進行塗佈，經五米之烤箱在6 0 °C及1 0米/分的速度可得到〇· ◦ 5至1徹米左右之離型厚度 ，再绖上嘐塗佈，烘乾後，不須再經聚酯膜之阽合，可直 接複捲成産品； (5)分條 乾膜基板之寬幅通常由客戶指定，所以複捲後的産品 通常寬幅7 0 0 mm，裁切為較小之寬幅以應客戶之需求 ，分條時之張力一般可設在2-l〇Kg/CM,張力太小易使 軟板及聚脂分開，張力太大可使乾膜産生流膠的問題，而 張力之均勻度也是分條時不可忽視的問題； ⑹儲藏 産品必須保持在5 — 1 0溫度及RH5 0 — 6 0 %溫 度之下，並且不可直接與白光接辑，通常黑色塑膠包裹， 平行懸掛或兩邊支架平行放置，以免單方流嘐，在上述環 境條件下産品壽命可維持六値月左右。 -1 0 - 5：紙張又度逯用中國國家標準（CNS)甲4現格（210 X 297二'法） (請先閱讀背面之注意事項再塡寫衣頁> 訂 .線· 烴濟部中央標準局典工消費含作社印S* Q9 Ί Λ Λ ΛΠη A6 广，、， B6 . .. . 五、發明説明（） 因此，绖由以上説明可知，本發明至少具有如后的慶 點： 可節省聚乙烯膜的原料，又因液態感光樹脂直接塗佈 於銅箔面，銅箔上任何的凹凸不平處，均可均勻被塗佈， 可使乾燥後之薄膜有更佳之密著性，可精藺熱壓阽合設備 及製程者。 綜合以上所述，本發明的方法與習用方法相較更能達 到增進功效，對於熟悉此項技E之人仕而言，拫據上述之 說明可能對具體賁施例作甚多之變更及修改，但仍不脫離 本發明之精神範11 ,所以，本發明之專利範圍是由附錄之 申請專利範圍加以限制。 'J-----.--------------------訂 線 <請先5?讀背面之注意事項再塥寫本頁) 經濟部中央標準局員工消费合作社印«'!·«. 本紙張尺茂適用中國國家標準（CNS)甲4規格（2i0 X 297 ) 82.3. 40,000A6 214629 B6 V. Description of the invention () The present invention relates to a manufacturing method of coating a light film on a flexible substrate, which is mainly a pseudo-manufacturing method of directly coating a photosensitive film on a flexible substrate, and is a practical design. The development of flexible printed circuit boards has made great progress in the past two decades. The market demand can reach about 350 million US dollars per year, and its use can be used in toys, computer industry, telephone industry, automobile industry and so on. The cracking of the flexible circuit board must start from the flexible substrate, which is formed by pressing the polyester film or polyimide film with the copper foil, and the formation of the circuit on the substrate is mainly exposed by the conductive film or dry film. Finished, in which the conductive method is to directly print the circuit on the substrate by the board printing method. Although the process is simple, because of the labor-consuming, R is suitable for the production of a small amount of rough courses, and it is easy to produce automatic il: Membrane is used to manufacture thinner circuits, which can be highly automated, and is designed for the use of advanced electronic products. The production of dry film originated from DuPont in the United States. Its process is to apply liquid photosensitive resin on poly S purpose film. After drying, it is covered with polyethylene film to form the dry film in the middle to form a sandwich sandwich structure. The polyethylene film must be torn off first, and the exposed dry film is hot-pressed to the flexible substrate copper foil, and then a series of steps such as ultraviolet exposure of the head are obtained to obtain the circuit. The above-mentioned traditional methods have the following problems: Several shortcomings: (1) The polyethylene film of dry film must be torn off and discarded during operation, which is not only wasteful but also causes environmental problems. ⑵The hot-pressing combination of dry film and flexible substrate requires investment in machinery and equipment, occupying plant space, consuming energy and labor, and raw materials before and after production (dry film is applicable to China National Standard (CNS> A4 specifications ( 210 X 297 乩 蛩) (Please read the precautions on the back before writing this page) Binding the Ministry of Economic Affairs, Central Standards Bureau, Labor and Consumer Cooperation Thorium Seal 82.3. 40.000 A6 B6 314629 V. Description of invention () and soft board) (3) The soft and uneven surface often makes the dry film less permeable and reduces its denseness, which leads to the occurrence of open circuit or short circuit defects. I ⑷ Flexible circuit boards must be sent to two suppliers (Soft board and dry film) procurement, which is easy to cause trouble in operation; therefore, the practicality of the above-mentioned conventional methods is not good, and there is a need for improvement. The inventor is in-depth to address the shortcomings of the above-mentioned conventional manufacturing of flexible substrates Conceived and actively researched the way to improve, and after long-term efforts and trial work, the invention was developed and designed. The main purpose of the invention is to provide a coating on a flexible substrate The manufacturing method of the optical film, pseudo-coating the photosensitive resin directly on the copper foil of the flexible substrate, after the satin is dried, the dry touch is thus formed on the flexible substrate, the steps can be divided into two types: (1) coating the combat resin After drying on the copper substrate of the flexible substrate, the hot air at about 80 ° C will be combined with the poly-cool film and rewinded into a product. (2) Before the glue is applied, apply a layer on the surface of the polyimide film on the back of the copper foil Very thin release agent, after drying, the copper foil surface is coated with glazed resin. At this time, it can be directly rewound without the polyester film being joined together, and then wrapped by the slitting hand to get different widths. If the flexible printed circuit board is manufactured by the above two methods, the raw material of the polyethylene film is omitted, and the liquid play resin is directly coated on the surface of the copper box. Any irregularities on the surface can be Even coating can make the dried film have better density, but can omit the heat pressing and bonding equipment and process, and the original scale is applicable to China National Standard (CNS) A 4 gauge (210 X 297 gong) (Jing first read the precautions on the back and then write this page). Pack. Order the Central Bureau of Standards of the Ministry of Economic Affairs 8 Printed by the consumer cooperative 82.3. 40,000 314629 A6 B6 Five'Invention Description (Can be convex and flexible, practical and novel Η To facilitate its essence (1) First Figure Second Figure Third Figure Fourth Figure Fifth Figure Sixth Figure No. Seventh Picture Eighth Picture Ninth Picture Tenth Picture No. +-Efficacy, Schematics Part 傜 本 发 傜 本 发 假 本 发 假 本 发 假 本 发 假 本 发 假 本 发 假 本 发 假 本 发 假 本 发 Graph The advantages of the pseudo-substrate coated black film manufacturing method can be regarded as a progressive design. Your review committee can further understand the creation and content of this creation, and it is supported by diagrams. The detailed description is as follows: Another manufacturing flow chart of Mingzhi. A schematic diagram of the filtering system of Mingzhi. A cross-sectional view of Ming's products. A cross-sectional view of Mingzhi's other products. The coating equipment of Ming shows Ε 1. Schematic diagram of Ming's gravure roll pot coating device. Schematic diagram of Mingzhi winding barrier coating device. Schematic diagram of the glue-cut angle roller coating head for the lower part of the Ming Dynasty. Schematic diagram of the top-cut angle-coated roller coating head for Ming. Schematic diagram of the invention's die head coating head. (Please read the back of the first ;; ± Issues and then fill out this page) 丨 Installed-. Line. Printed by the Employees ’Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs κ (2) Part of the drawing number (1) The original liquid tank (3) 5) Polyimide film (7) Copper foil (9) Polyester film 2) Uncoupling 4) Spherical valve 6) Adhesive 8) Dry film photoresist 1 0) Release agent coating paper ruler A Chinese standard (CNS) A4 specification (2iO X 297 n) 82.3. 40,000 3: 1 ^ 639 5. Description of the invention () (1 1) The substrate rolls out one (1 3) release agent drying oven (1 5) Dry film coating head (1 7) substrate roll out three (1 9) rewinding machine (2 1) rubber disc (2 3) rubber wheel (2 5) coating roller (251) winding scraper (27 ) Roller (29) ψ} fi (31) Pump the present invention as a kind of flexible substrate-shown in the second figure), mainly including (1) rewinding, (5) splitting, ⑹ storage and other steps (1) filtering The system (such as tank 1 in the third figure), pump (2), over-center, etc., where the pump pressure is controlled by flow at 4 5-100 g / m Teflon tube into the glue The slot 1/3 is kept stable, and the supply speed of the glue is fast and slow. The paper standard is the Chinese National Standard (CN-S) Jiajian (210 X 297 ' 'Ϊ) A6 B6 Ministry of Economic Affairs, Central Bureau of Standards, 3 industrial and consumer cooperatives printed clothing (1 2) release agent coating head (1 4) substrate roll-out II I 1 6) dry film drying oven (1 8) pressing machine (2 0) Gravure roller (22) Suction scraper (2 4) Oven (2 6) Oven (28) Angle-cutting roller (30) Angle-cutting roller (32) The method of coating the optical film on the die mouth as the first filter , ⑵ Glue, (3) Drying, (4), can be divided into two categories according to different products), the main 傜 consists of a box of liquid (3) and a number of spherical valves (4) not exceeding 8 Kg / CM2 is limited, its i η is two diameters of about 5 mm and 2/3 length respectively, the flow rate will try to make the thickness of the dry film coated uneven (Jing Xian "read the notes on the back side and then write this page ) 82.3. 40,000 A6 314629 _B6_ 5. Description of the invention (), and affect the appearance; (2) Glue coating, flexible printed circuit board coating dry film equipment: flexible printed circuit board coating dry film, according to the product combination Different can be divided into two categories, as shown in the fourth and fifth figures, the first is the same as the general dry film photoresist directly pressed on the flexible printed circuit board. Acid amine film (5), adhesive (6), copper foil (7), dry film photoresist (8) and polyester film (9), etc .; the second kind of pseudo is made of polyimide film (5) , Adhesive (6), mesh (7), dry film photoresist (8) and release agent layer (10), etc., and there is no polyester film (9) on the dry film photoresist (8), A chicken layer (10) is added on the bottom of the polyimide film (δ). The schematic diagram of the coating equipment (as shown in the sixth figure) is composed of the following grooves, the substrate is rolled out (1 1), the release agent coating head (1 2), the release agent drying box ( 13), substrate roll-out two (14), dry film coating head (15), dry film drying box (16), substrate roll-out three (17), laminating machine (18), post-roller ( 1 9). The following is a detailed description of the release cutting head (1 2) and dry film coating head (1 5) as follows: The degree of release agent coating (dry amount) is between 0.05 to 1.0 microns, Common coating methods include gravure coating heads and winding bar coating heads. The structure of the gravure coating head, as shown in the seventh figure, the gravure roller (2 0) is covered with the release agent in the rubber disc (21), and the scraper (2 2) is adjusted to scrape the wheel surface other than the sales line clean, rubber The wheel (23) transfers the release agent in the pattern to the surface of the polyimide film, and is dried in an oven (2 4), that is, the coated paper of the release agent is completed and the Chinese Gardener Standard (CNS) A is applied. 4 cashes (210 X 297 乂 坌 * 'Ji --------- I * --- I ------------- ^ ------- booking (Please read the precautions on the back before writing this page.) Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 82,3. 40,000 214639 A6 Printed by the 8 Workers and Consumers Cooperative of the Central Standards Bureau of the Ministry of Economics ¾ B6 V. Description of Invention () The advantage of this kind of coating head is that it is more stable to coat, but the coating result is uneven due to the poor cleaning of the gravure roller and the rheological properties of the release agent. For the cloth method, use a winding bar coating head, as shown in the eighth figure, the coating roller applies the release agent to the surface of the polyimide film, and the excess release line is removed by the winding bar (251) Scrape to achieve proper application The coating is completed after drying in the oven (26). This coating method has a smooth surface, but the coating weight is susceptible to changes in tension, and the winding bar should be cleaned before and after use to avoid shadow coating. The accuracy of the cloth. There are a variety of coating heads available for coating engineering, of which the coating heads suitable for dry film coating are the lower-cut angle-cutting roller_coating head and the upper-side glue-cutting angle roller coating head. , Die head coating head, etc. (as shown in the ninth, ten, and eleventh figures); the lower part is provided with a rubber-cutting angle roller coating head (as shown in the ninth figure), which is glued to the surface of the substrate by the roller (27) (Copper foil surface), scrape the excess glue by the angle-cutting roller (2 8) to complete the coating. The advantage of this coating head is that the viscosity range suitable for coating is very large, but because the rubber plate is open, the solvent is easy to It volatilizes during coating, so it is more suitable for coating latex or high-boiling solvent coating liquid. The upper part is for the angle-cutting roller coating head (as shown in the tenth figure). The angle-cutting roller (3 0) scrapes off excess glue to complete the coating. It is a very simple structure, but it is not suitable for coating with lower viscosity , The glue tank can be properly sealed, so it can be coated with a medium boiling point coating solution. 〇-8 ~ (please read the precautions on the back before filling this page). Binding. Thread. The paper size is in accordance with Chinese national standards (CNS) A4 gauge (2iO X 297W $) 82.3. 40,000 A6 Central Bureau of Standards of the Ministry of Economic Affairs 8 Industrial and Consumer Cooperatives printed B6_ V. Invention description () Die head coating head is a relatively new coating method (such as the first + — (Shown in the figure), the quantitative pump (3 1) extrudes the die from the die (3 2) and coats the surface of the substrate, which is different from the first two coating heads. It is a pre-metered coating method. Many advantages, such as high-speed coating, accurate control of the coating film thickness, coating of low-boiling coating liquids, etc .; its disadvantage is the high selectivity of the coating head (not suitable for coating liquids with different rheological properties) and The cost of coating head is high. Because the amount of glue can control the thickness of the dry film, regardless of the choice of glue tank, the gap between the soft substrate driven by the glue head and the roller is measured between 100 and 150 micrometers with a thickness gauge. The thickness of the dry film can be between 30 to 50 tor to drive the surface of the roller of the flexible substrate. It must be wiped clean to prevent the soft board from protruding and cannot be coated with Qianguang resin. (3) The glued substrate immediately enters the baking oven for drying. The total length of the baking oven is ten meters, divided into eight areas. The temperature control range of each field is as follows: 1 2 3 4 5 6 7 8 4 0-6 0 4 5-6 5 δ 0 -70 55-75 60-80 60-80 60-80 60-90 ° C The temperature of the oven is adjusted according to the coating speed and the type and content of the solvent in the formula, usually coating The faster the speed, the higher the temperature must be, but not higher than 100 ° C, so as to prevent the dry film itself from being hardened and deteriorated due to too high temperature. If the solvent in the formula is low boiling point and the solid content is increased, the temperature can be adjusted to Drying in a low range, the coating speed can be from 2 m / min to 20 m / min; the tension of the substrate during the lotus rotation operation is very important, especially if the tension between the two sides is too large, it will cause rewinding Fold, and the uneven front and back tension is easy to cause the defect of the next step; -9- (please read the back of the first; please write this page after the intention) 丨 installed. The line · This rogue Zhang H is suitable for Chinese countries Standard (CNS) T 4 gauge network (2i0 X 297 乂 犮 82.3. 40,000 Α6 Β6 Five'Invention Description) ⑷Rewinding a. The soft substrate is dried by drying , The polyester film must be pasted on the dry film and then rewound, but at this time the dry film surface is quite dry and the polyester film is hard, the bonding between the two is quite difficult at room temperature, so the joint In the past, the temperature of the back of the flexible substrate was controlled by hot air blowing between 80 and 100 ° C, so that the dry film could easily stand up with the polyester film, so that a bubble-free sandwich with a flat surface and easy to fall off could be obtained Dry film soft board; b. If the release agent is applied on the back of the soft board before the photosensitive resin is coated, it can usually be coated with a concave plate roll, after passing through a five-meter oven at 60 ° C and 10 m / The divided speed can be obtained. ◦ The release thickness of 5 to 1 metre or so, and then coated on the top. After drying, it can be directly rewound into the product without the need of the polyester film; (5 ) The width of the stripped dry film substrate is usually specified by the customer, so the product after rewinding is usually 700 mm wide, cut to a smaller width to meet the needs of customers, and the tension during slitting can generally be set At 2-l〇Kg / CM, too little tension makes the flexible board and polyester easy to separate, too much tension can cause dry film flow problems, and tension Uniformity is also a problem that cannot be ignored when slitting; ⑹ The stored products must be kept below 5-10 temperature and RH50-60% temperature, and cannot be directly connected with white light, usually wrapped in black plastic, hanging in parallel or on both sides The brackets are placed in parallel to avoid unilateral flow, and the product life can be maintained for about six months under the above environmental conditions. -1 0-5: The paper uses the Chinese National Standard (CNS) Grade 4 (210 X 297 2 ') Law) (Please read the precautions on the back before writing the clothing page> Order. Thread · The Ministry of Hydrocarbon Economy Central Standards Bureau Code of Industry Consumption includes the social seal S * Q9 Ί Λ Λ ΛΠη A6 Wide ,,, B6 ... V. Description of the invention () Therefore, from the above description, it can be seen that the present invention has at least the following points: it can save the raw material of the polyethylene film, and because the liquid photosensitive resin is directly coated on the copper foil surface, any The unevenness of the film can be evenly coated, which can make the dried film have better adhesion, and can be refined by hot pressing and laminating equipment and processes. In summary, the method of the present invention is more effective than the conventional method. For those who are familiar with this technology, according to the above description, many changes and modifications may be made to the specific Ben examples However, it still does not deviate from the spirit of the present invention. Therefore, the patent scope of the present invention is limited by the appended patent application scope. 'J -----.-------------------- Reservation < Please first 5? Read the notes on the back and then write this page) Central Ministry of Economic Affairs The Bureau of Standards and Staff ’s Consumer Cooperative printed «'! ·«. This paper ruler is applicable to China National Standard (CNS) Grade 4 (2i0 X 297) 82.3. 40,000