201233455 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種對移動中之捲繞物(w e b)以連續性或間 歇性地塗佈既定塗液之捲繞塗佈（web coating)裝置，尤其係 關於一種適用於被要求以薄膜均勻地塗佈塗液之用途之捲 繞塗佈裝置。 【先前技術】 在捲繞物為例如金屬箔或樹脂膜的表面上，被要求以薄膜 均勻地塗佈既定塗液之情形甚多。例如，如圖5所示，於鋁 箔或銅箔等之金屬箔101上，設有極薄膜(例如，雖於乾燥 狀態或濕潤狀態而有所不同，但均為0.5〜15 /zm程度厚度) 之底塗層（anchor coat) 102，且在其上面設置較厚之保護塗層 103之情形。例如於二次電池或電容器等中，若在保護性塗 佈（overcoat)前實施該種底塗層塗佈，則可防止在金屬羯101 上析出物質。又，因其可提高金屬箔101與保護塗層103 之密接性，故可期待電池性能的提高及長期耐久性的提高 等。又，於光學薄膜用途等中，有時會被要求以濕潤狀態塗 佈0.5〜1 /zm程度之薄膜的情形。 為了均勻厚度進行該種薄膜之塗佈的一般方式，已知有如 下方式：例如，如圖6所示，使捲繞物111於支承輥112上 移動，在支承輥112上配置作為塗液供給手段之塗佈頭 113,將塗佈頭113之狹縫狀吐出口 114的出口與支承輥112 100130076 3 201233455 表面之間的間隙，高精度地調整為與塗佈於捲繞物111上之 濕潤狀態下的膜厚相同或稍大之尺寸，而對移動t之捲繞物 111以連續性或間歇性地塗佈塗臈115(在本案中，將該種方 式稱作「合輥塗佈（onroll coat)」）。然而於該合輥塗佈方式 中，對各構件本身或組裝被要求極高之精度，而難以回應該 精度要求之情形甚多，尤其難以回應對狹縫狀吐出口 114 的出口與支承輥112表面之間的間隙所要求之極高精度。 ^於。亥種方式中，即便可進行高精度的間隙調整，當異物 等進入至销隙料，因該異物之嵌人，則產生顯著之塗佈 缺陷或在某些情形下捲繞物Ul亦有產生斷裂之虞。又， 因伴隨著捲繞物m移動之伴隨氣流的捲入等，則有產生向 捲=勿111之長邊方向延伸並在捲繞物in之寬度方向分佈 之夕/条紋狀的塗佈不均（顯現為條紋狀之顏色不均較多） 種條紋狀之塗佈不均有時在捲繞物111本身於盆 又方向上存在厚度不均之情料、或上述組裝精度較差: 情形時亦會發生。 =應對該種問題，已知有如下塗佈方式：例如，如圖7 π於塗佈頭121上，設有開口於狹縫狀吐出口 122之出 佈部之上游侧進行減壓 雖上述伴隨氣流所引起ttrr塗佈在二種塗佈方式中， 100130076 201233455 間隙要求極高精度之問題並未改變，故由於上述異物嵌入所 .產生之塗佈缺陷或捲繞物斷裂之問題、進而捲繞物lu本身 .之寬度方向上厚度不均或組裝之精度欠佳所引起的條紋狀 之塗佈不均之問題依然殘留。 針對該種殘留問題，已知有如下方式:例如，如圖8所示， 於移動之捲繞物⑴的自由通道（空中通道)(例如，形成於幸昆 131 132間之空中通道)上配置塗佈頭113，於與塗佈頭⑴ 之狹縫狀吐出口 m的出口接近之方向及遠離之方向上可 稍微移位地張設移動中之捲繞物⑴(本射，將該種方式稱 作離輥塗佈(offroll coat)」）(例如，專利文獻U。此種離 親塗佈方式係-面使狹縫狀吐出口 114的出口與捲繞物ηι 表面的間隙貫質上為零(即面使捲繞物⑴與狹縫狀吐 出口 114之出口接觸），一面因捲繞物lu對狹縫狀吐出口 114的出口與接近之方向及遠離之方向上可移位故其至少 可消除因異物叙入而造成之捲繞物U1斷裂之可能性，因此 對4膜塗佈係有效方法之-。然而，由於捲繞物111本身之 缺點（有時捲繞物U1在長邊方向彎曲，或捲繞物lu上局 部存在鬆弛等平面性欠佳之部位之情形）、或因移動捲繞物 U1之晃動有時捲繞物ln會在寬度方向上不均勻地接 觸於塗佈頭113之前端部(狹縫狀吐出口 114之出 如，有時接觸壓變得不均勻，或局部性地產生不接觸之部 位）’由此而引起條紋狀或局部性塗佈不均之㈣。捲繞物 100130076 201233455 ni之晃動可藉由縮短報131、132間之距離而某種程度得 到抑制，但對於如上所述之捲繞物111本身之缺點所引起的 塗佈不均，則難以抑制。 [先前技術文獻] [專利文獻] 專利文獻1 :日本專利特開2000-51767號公報 【發明内容】 (發明所欲解決之問題） 因此本發明之課題在於鑒於如上所述之實情，提供一種捲 繞塗佈裝置，其可防止異物嵌入所引起之問題並且防止組裝 精度等所引起之條紋狀之塗佈不均產生，同時可防止捲繞物 之晃動或捲繞物自身之彎曲或鬆弛等缺點所引起之塗佈不 均產生’而可使薄臈均勻地塗佈塗液。 (解決問題之手段） 為解決上述問題，本發明之捲繞塗佈(web coating)裝置係 對移動中之捲繞物(web)表面上，連續性或間歇性地塗佈自 沿該捲繞物之寬度方向延伸之塗液供給手段的狹縫狀吐出 口所吐出之既定塗液者；其特徵在於，將上述狹縫狀吐出口 配置於捲繞物之空中通道上，並且在將該捲繞物置於中間而 與上述狹縫狀吐出口相對向之位置處，設置有於朝向上述狹 縫狀吐出口沿捲繞物寬度方向以均等之推壓力對該捲繞物 進行施壓之施壓手段。 100130076 6 201233455 於該種本發明之捲繞塗佈裝置中，將塗液供給手段之狹縫 狀吐出口配置於捲繞物之空中通道上，基本上設為離輥塗 佈。而且’在將通過狹縫狀吐出口之位置處的捲繞物置於中 ' 間而與狹縫狀吐出口相對向之位置處，設置朝向狹縫狀吐出 口沿捲繞物寬度方向以均等之推壓力對該捲繞物進行施壓 之施壓手段’從而朝向狹縫狀吐出口沿捲繞物寬度方向以均 等之推壓力對塗佈中之捲繞物施壓。即，一方面藉由基本上 設為離輥塗佈，其可防止合輥塗佈之缺點的異物嵌入所引起 之問題或組裝精度等所引起之條紋狀之塗佈不均產生（換言 之，一面在該狀態下發揮離輥塗佈之優點），同時藉設置沿 - 捲繞物寬度方向以均等之推壓力對捲繞物進行施壓之施壓 • 手段’以適當之推壓力始終朝向塗液塗佈部（狹縫狀吐出口） 按壓捲繞物並以該狀態連續性或間歇性地進行塗佈，藉此可 防止習知之離輥塗佈中之缺點的捲繞物之晃動或捲繞物本 身之彎曲或鬆弛等缺點所引起之塗佈不均產生。該施壓手段 因僅以既定之推壓力朝向狹縫狀吐出口對移動中之捲繞物 進行施壓，故可根據需要’在狹縫狀吐出口之位置處使捲繞 . 物（捲繞物之移動通道）向狹縫狀吐出口相反侧退避，而與機 „ 械性地將間隙規定為固定值之合輥塗佈相比，其則無異物嵌 入之虞，並且亦不需要高組裝精度。而且，該施壓手段可沿 捲繞物寬度方向以均等之推壓力朝向狹縫狀吐出口對捲繞 物常時進行施壓，故移動中之捲繞物極難產生晃動，並且即 100130076 7 201233455 存在彎曲或鬆料原_，鎌物亦可仵持 以一壓力常時朝向塗液塗佈部(狹縫狀吐受: =之狀態’從而可克服捲繞物本身之原因的狀態心 或間歇性地塗佈塗液，故可進行均句之塗佈，尤其以薄膜進 行均句之塗佈。再者，為了達成該種均句之塗佈，藉由上述 施壓手段對捲繞物所賦予之推壓力，最好在捲繞物寬度方向 =:嶋^响_±5%_更理想為 於上述本發明之捲繞塗佈裝置中，作為上述施壓手段，例 如可採用如下形態中之任-者：報表面以海绵所形成之海綿 輥所構成之形態；及設於與狹縫狀吐出口相對向之位置’且 具有導入加壓氣體並朝向捲繞物開放之加壓室的腔室所構 成之形態。在海綿輥之情形時，可藉由適當地設定形成輥表 面之海綿之硬度或厚度，而在加壓氣體腔室之情形時，則藉 由適當設定所導入之氣體壓力及作用於捲繞物之加壓力的 區域尺寸，而可以適當之推壓力常時朝向塗液塗佈部（狹縫 狀吐出口）均等地按壓捲繞物，從而可以薄膜進秤均勻之塗 佈。 又，於本發明之捲繞塗佈裝置中，最好在上述狹縫狀吐出 口之捲繞物移動方向前後處，設有使捲繞物之空中通道路徑 對準於狹縫狀吐出口之前端位置的均平輥(leveling roll)。若 預先配置該種均平輥，可使捲繞物在塗液塗佈上以理想的空 100130076 8 201233455 中通道路徑上穩定地移動’使均勻之塗佈變得更容易進行。 該均平輥亦可僅配置於捲繞物移動方向前後處之任一方，於 • 即便不設置均平輥亦可確保理想的空中通道路徑之情形 i 時，亦可不特別設置之。 作為本發明中之捲繞物之種類並無特別限定，可.對要求均 勻塗液塗佈之所有捲繞物應用本發明。具有代表性者為如上 所述’可使用金屬箔或樹脂膜作為本發明中之捲繞物。 (發明效果） 均勻之塗佈 根據本發明之捲繞塗佈裝置，一方面基本上採用離報塗佈 方式’-方面在料過錄供給手段之狹縫狀^口之位置 的捲繞物置於中_與狹縫狀吐出σ相對向之位置，設有朝 向狹縫狀吐出口沿捲繞物寬度方向以均等之推壓力^捲植 物進行施壓之施壓手段，使得可—賴塗佈中之捲繞物，= 對於狹縫狀吐出口即塗液之塗佈部沿捲繞物寬度方向以均 等且亦可容許向狹祕㈣口相反側進行移位之適當推壓 力進行施壓-面進行塗佈，故其可—面防止如合錄佈方式 般之異物嵌人㈣敎故障產生或組裝精料所引起之條 紋狀之塗佈不均產生，同時可防止捲繞物之晃動或捲燒物本 身之弯曲或鬆弛等缺點所引起之塗佈不均，而可以薄膜進行 【實施方式】 以下，參照圖式， 對本發明之較佳實施形態進行說明。 100130076 201233455 圖1係表示本發明第1實施態樣之捲繞塗佈裝置，圖2 係例示其更具體之形態。於圖1、圖2中小u表示捲繞 塗佈裝置’於戎捲繞塗佈裳置卜u中，在移動中之捲繞物 2、12之S t通道3、13 ±配置作為塗液供給手段之塗佈頭 4、14，從而可進行離輥方式之塗佈。於該移動中之捲繞物 2、12之表面（單面）上’連續性或間歇性地塗佈自沿該捲繞 物2、12之寬度方向延伸之塗佈頭4、14的狹縫狀吐出口 5、 15所吐出之既定塗液，作為塗膜i6。於圖1所示之形態中， 捲繞物2之空中通道3係形成於直徑相對較小之輥(均平 輥)6、7之間’於圖2所示之形態中，捲繞物12之空中通 道13係形成於直徑相對較大之輥17與直徑相對較小之輥 18之間。塗液係自塗佈頭4、μ内之歧管（manifold)8、19 通過狹縫狀吐出口 5、15吐出至捲繞物2、12之表面上。 於該種離輥方式之捲繞塗佈裝置lxll中，一方面將上述 狹縫狀吐出口 5、15配置於捲繞物2、12之空中通道3、13 上，一方面在將捲繞物2、12置於中間而與狹縫狀吐出口 5、 15之出口相對向之位置，設有朝向狹缝狀吐出口 5、15之 出口沿捲繞物寬度方向以均等之推壓力對該繞捲物2、12 進行施壓之施壓手段，該施壓手段於本實施態樣中，係由輥 表面以海綿所形成之海綿輥9、20所構成。 於該種捲繞塗佈裝置1、11中，因基本上為離輥塗佈’故 移動中之捲繞物2、12於狹縫狀吐出口 5、15之出口位置在 100130076 10 201233455 與該出口接近之方向及遠離之方向上含有適度之自由度，從 而可防止合輥塗佈方式之缺點即異物嵌入所引起之故障或 組裝精度等所引起之條紋狀之塗佈不均產生。而且，藉由海 綿輥9、20之表面彈性，因移動中之捲繞物2、12始終在捲 繞物2、12之寬度方向以適當的均等之推壓力朝向狭縫狀吐 出口 5、15之出口（即，塗液塗佈部）受到按壓，故捲繞物2、 12之晃動得以被抑制，並且即便捲繞物2、12本身存在彎 曲或鬆弛等缺點時，捲繞物2、12在經由吐出塗液實質性地 與狹縫狀吐出口 5、15接觸之狀態下連續性地移動而受到塗 佈。尤其藉由適當地設定海綿輥9、20之外徑、或形成輥表 面之海綿之硬度或厚度，其可呈現出均勻且最佳之塗佈狀 態。其結果為’其可防止習知之離輥塗佈方式之缺點的捲繞 物2、12之晃動或捲繞物2、12本身之彎曲或鬆弛等缺點所 引起之塗佈不均，而可進行塗液的均勻之塗佈，尤其係以薄 膜進行均勻之塗佈。 圖3係表示本發明之第2實施態樣之捲繞塗佈裝置，圖4 係例不其更具體之形態。於圖3、圖4所示之捲繞塗佈裝置 21、31中’除朝向狹縫狀吐出口 5、μ之出口在捲繞物寬 度方向以均等之推壓力對捲繞物2、12進行施壓之施壓手段 以外的構成’其均與圖1、圖2所示之構成實質上相同，故 藉由標註與圖丨、圖2中所標註者相同之符號而省略其說明。 於本只施想樣中，朝向狹縫狀吐出口 5、15之出口沿捲繞 100130076 11 201233455 物寬度方向以均等之推壓力對捲繞物2、12進行施壓之施壓 手段，係由设於與狹縫狀吐出口 5、15之出口相對向之位置 處，且具有導入加壓氣體22(例如，加壓空氣)之加壓室23、 32的腔室24、33所構成，加壓室23、32係朝向捲繞物2、 12開放使得加壓氣體22之壓力可負載於捲繞物2、12上。 幵> 成加壓室23的腔室24既可如圖3所示以跨輥6、7間地 延伸方式構成（既可為加壓室23覆蓋輥6、7之形態，亦可 為加壓室23未覆蓋輥6、7之狀態），亦可如圖4所示，在 形成於輥17與輥18之間的空中通道13之範圍内更配置直 徑相對較小之輥34、35,以跨輥34、35間地延伸方式構成。 於後者之情形時，輥34、35對加壓室32,亦可發揮作為捲 繞物移動方向上之概略密封手段之作用。 藉由構成該種具有加壓室23、32之腔室24、33的形態之 轭壓手段’藉由適當地設定所導入之加壓氣體的壓力及作用 於捲繞物2、12之加壓力的區域(加壓區域：即朝向加壓室 23、32之捲繞物2、12的開放區域)之尺寸，亦可以適當之 推壓力吊時朝向狹縫狀吐出口 5、15之出口（塗液塗佈部）沿 捲繞物寬度方向均等地按壓捲繞物2、12 ’因而可以薄膜實 現均勻之塗佈。因該加壓室23、32之推壓與上述海綿輥之 推壓相比，可跨更廣之區域對捲繞物2、12施加推壓力，故 於例如捲繞物2、12存在局部性鬆弛，且該鬆弛跨及某種程 度之面積而擴散之情形時，可更適當地以適當之推壓力朝向 100130076 12 201233455 狹縫狀吐出口 5、15均等地按壓捲繞物2、12。 再者，於圖3、圖4所示之形態中，配置於加壓室23、32 之捲繞物2、12的移動方向前後處之輥6、7及輥34、35 係設為位置固定，但若例如預設為可沿捲繞物2、12之移動 方向進行位置調整，則可稍微調整加壓室23、32的朝向捲 繞物2、12之開放區域的面積。當然，亦可預先將腔室24、 33本身構成為可調整該加壓室23、32之開放區域的面積。 此外，輥6、7或輥34、35係基本上為自由輥(換言之， 連動於捲繞物之移動而轉動之輥）即可，但若例如以小轉距 可進行助力驅動之構成，則可減輕對移動中之捲繞物2、12 所施加之張力，而可防止張力所引起之捲繞物2、12之波狀 皺紋，並可朝往更進一步希望狀態下的均勻塗佈。 (產業上之可利用性） 本發明之捲繞塗佈裝置可適用於需要均勻塗佈的所有捲 繞物之塗佈，尤其適合於需要對金屬箔或樹脂膜進行薄膜塗 佈之用途。 【圖式簡單說明】 圖1係本發明第1實施態樣之捲繞塗佈裝置的概略側視 圖。 圖2係表示較圖1之形態更具體之例的捲繞塗佈裝置之立 體圖。 圖3係本發明第2實施態樣之捲繞塗佈裝置之概略側視 100130076 13 201233455 圖。 圖係表不較圖3之形態更具體之例的捲繞塗佈裝置之立 體圖。 面=5係表不對金屬箱進行底塗佈之形態之—例的概略剖 圖6係表示習知之合·佈方式之—例的立體圖。 圖7係表示習知之具備抽吸機構之合輥塗佈方式之 的立體圖。 』 【主要元件符號說明】 圖8係表示習知之離報塗佈方式之一例的立體圖。 1、11、21、31 捲繞塗佈裝置 2、12、111 捲繞物 3 ' 13 空中通道 4 ' Η 、 113 、 121 塗佈頭 5 、 15 、 114 、 122 狹縫狀吐出〇 6、7 均平輥 8 ' 19 歧管 9 ' 20 海綿輥 16 > 115 塗膜 17 大徑輥 22 加壓氣體 23、32 加壓室 100130076 14 201233455 24、33 腔室 34 、 35 、 18 小徑幸昆 * 101 金屬箔 * 102 底塗層 103 保護塗層 112 支承輥 123 減壓抽吸口 131 ' 132 輥 100130076201233455 VI. Description of the Invention: [Technical Field] The present invention relates to a web coating device for continuously or intermittently coating a predetermined coating liquid on a moving web (web) In particular, it relates to a winding coating apparatus suitable for use in applications requiring uniform application of a coating liquid to a film. [Prior Art] On the surface of the wound material such as a metal foil or a resin film, it is required to uniformly coat a predetermined coating liquid with a film. For example, as shown in FIG. 5, a thin film is provided on the metal foil 101 such as an aluminum foil or a copper foil (for example, it differs in a dry state or a wet state, but each has a thickness of about 0.5 to 15 /zm). An anchor coat 102 is provided with a thicker protective coating 103 disposed thereon. For example, in a secondary battery or a capacitor, if such a primer coating is applied before a protective overcoat, it is possible to prevent precipitation of a substance on the metal crucible 101. Moreover, since the adhesion between the metal foil 101 and the protective coating layer 103 can be improved, improvement in battery performance and improvement in long-term durability can be expected. Further, in the case of use in an optical film or the like, it may be required to apply a film having a thickness of about 0.5 to 1 /zm in a wet state. In order to carry out the coating of such a film in a uniform thickness, for example, as shown in Fig. 6, the wound material 111 is moved on the backup roll 112, and the support roll 112 is disposed as a coating liquid supply. The coating head 113 of the apparatus adjusts the gap between the outlet of the slit-shaped discharge port 114 of the coating head 113 and the surface of the backup roll 112 100130076 3 201233455 with high precision to the wetness applied to the wound 111. The film thickness in the state is the same or slightly larger, and the coating roll 111 is applied continuously or intermittently to the winding 111 of the moving t (in this case, this mode is referred to as "coiling roll coating ( Onroll coat)"). However, in the roll coating method, extremely high precision is required for each member itself or assembly, and it is difficult to respond to the accuracy requirement, and it is particularly difficult to respond to the exit of the slit-shaped discharge port 114 and the backup roller 112. The gap between the surfaces is required to be extremely precise. ^于. In the hybrid method, even if high-precision gap adjustment is possible, when a foreign matter or the like enters into the pin gap material, a significant coating defect is generated due to the embedding of the foreign matter, or in some cases, the winding material Ul is also generated. The shackles of the break. In addition, due to the entrapment of the airflow accompanying the movement of the winding m, the coating may be applied in the longitudinal direction of the roll=Do not 111 and distributed in the width direction of the wound in. Unevenness (more unevenness in color appearing in stripes) When there is no coating in the stripe shape, there is a case where the winding material 111 itself has uneven thickness in the direction of the basin, or the above assembly accuracy is poor: It will also happen. In order to cope with such a problem, there is known a coating method in which, for example, as shown in Fig. 7 π on the coating head 121, the upstream side of the cloth discharge portion of the slit-shaped discharge port 122 is provided to perform pressure reduction. The ttrr coating caused by the airflow is applied in two coating methods. The problem of extremely high precision in the gap requirement of 100130076 201233455 has not changed, so the problem of coating defects or winding breakage caused by the above-mentioned foreign matter embedding, and thus winding The problem of uneven coating unevenness caused by uneven thickness in the width direction of the material lu itself or poor assembly accuracy remains. For such a residual problem, it is known that, for example, as shown in FIG. 8, a free passage (air passage) of the moving winding (1) (for example, an air passage formed in the 131 132 of the Xunkun) is disposed. The coating head 113 is capable of arranging the moving winding (1) in a direction slightly displaced from the outlet of the slit-shaped discharge port m of the coating head (1) (the present shot, this method) It is called "off roll coating" (for example, Patent Document U. This kind of separation coating method is such that the gap between the outlet of the slit-shaped discharge port 114 and the surface of the wound material η is qualitatively Zero (that is, the wound material (1) is brought into contact with the outlet of the slit-shaped discharge port 114), and the wound material lu is displaceable in the direction of the exit and the approaching direction of the slit-shaped discharge port 114 and the direction away from it. At least the possibility of rupture of the wound U1 due to the introduction of foreign matter can be eliminated, and thus the method of coating the film is effective. However, due to the disadvantage of the wound 111 itself (sometimes the winding U1 is long Bending in the side direction, or in the case where there is a localized portion such as slack in the winding material lu Or the sway of the moving winding U1 may cause the winding ln to contact the front end portion of the coating head 113 unevenly in the width direction (the slit-like discharge port 114 may come out, and the contact pressure may become Non-uniform, or locally generated non-contact parts) 'This causes stripe or local uneven coating. (4) Winding 100130076 201233455 Ni can be shaken by shortening the distance between 131, 132 It is suppressed to some extent, but it is difficult to suppress coating unevenness caused by the disadvantage of the wound material 111 itself as described above. [Prior Art Document] [Patent Document] Patent Document 1: Japanese Patent Laid-Open No. 2000- SUMMARY OF THE INVENTION (Problems to be Solved by the Invention) Therefore, in view of the above circumstances, it is an object of the present invention to provide a winding coating apparatus which can prevent problems caused by foreign matter embedding and prevent assembly accuracy and the like. The uneven coating unevenness is generated, and the coating unevenness caused by the sway of the winding or the bending or slack of the winding itself can be prevented, and the thin enamel can be uniformly coated. liquid (Means for Solving the Problem) In order to solve the above problems, the web coating device of the present invention continuously or intermittently coats the surface of the web on the moving web. a predetermined coating liquid discharged from the slit-shaped discharge port of the coating liquid supply means extending in the width direction of the object; wherein the slit-shaped discharge port is disposed on the air passage of the winding object, and The winding object is placed in the middle and is opposed to the slit-shaped discharge port, and is provided to press the wound material at a uniform pressing force in the width direction of the winding body toward the slit-shaped discharge port. 100130076 6 201233455 In the winding coating apparatus of the present invention, the slit-shaped discharge port of the coating liquid supply means is disposed on the air passage of the winding material, and is basically applied by roll coating. Further, 'the winding object at the position where the slit-shaped discharge port is placed is placed between the middle and the slit-shaped discharge port, and is disposed to be equal to the slit-shaped discharge port in the winding width direction. The pressing means "the pressing means for applying pressure to the wound material" presses the wound material in the coating at a uniform pressing force in the width direction of the winding toward the slit-shaped discharge port. That is, on the one hand, by basically applying the coating to the roll, it is possible to prevent the problem caused by the foreign matter embedding which is disadvantageous of the roll coating, or the unevenness of the stripe coating caused by the assembly precision or the like (in other words, one side In this state, the advantage of the off-roll coating is exerted, and at the same time, by applying a pressure/pressure means for pressing the winding material with an equal pressing force in the width direction of the winding body, the pressure is always applied to the coating liquid at an appropriate pressing force. The coating portion (slit-shaped discharge port) presses the wound material and applies the film continuously or intermittently in this state, thereby preventing the sway or winding of the winding material which is a disadvantage of the conventional roll coating. Uneven coating caused by defects such as bending or slack of the object itself. Since the pressing means presses the moving winding object toward the slit-shaped discharge port only with a predetermined pressing force, the winding material can be wound at the position of the slit-shaped discharge port as needed (winding The moving path of the object is retracted to the opposite side of the slit-shaped discharge port, and there is no foreign matter embedding, and high assembly is not required, as compared with the roll coating in which the machine is configured to have a fixed gap as a fixed value. Further, the pressing means can press the winding material at a constant pressing force in the width direction of the winding toward the slit-shaped discharge port, so that the winding material during movement is extremely unlikely to be shaken, that is, 100130076 7 201233455 There is a bend or loose material _, and the sputum can also hold the state of the coating liquid at a pressure (slit-like venting: = state) to overcome the cause of the winding itself or Since the coating liquid is applied intermittently, it is possible to apply a uniform sentence, and in particular, to apply a uniform sentence to a film. Further, in order to achieve the application of the uniform sentence, the winding material is applied by the above-mentioned pressing means. The pressing force given is preferably in the width direction of the winding It is preferable that in the above-described winding coating apparatus of the present invention, as the above-mentioned pressing means, for example, a sponge having a surface formed by a sponge may be used. a form formed by a roll; and a chamber provided at a position facing the slit-shaped discharge port and having a pressurizing chamber into which the pressurized gas is introduced and opened toward the wound body. In the case of a sponge roll By appropriately setting the hardness or thickness of the sponge forming the surface of the roller, in the case of pressurizing the gas chamber, by appropriately setting the pressure of the introduced gas and the size of the region acting on the pressing force of the winding material Further, the wound material can be uniformly pressed toward the coating liquid application portion (slit-shaped discharge port) at a suitable pressure, and the film can be uniformly applied to the scale. Further, in the winding coating device of the present invention Preferably, a leveling roll for aligning the air passage path of the winding object with the front end position of the slit-shaped discharge port is provided in front of the moving direction of the winding object in the slit-shaped discharge port. Pre-configured with this type of equalizing roller, The winding material is stably moved on the coating path by the ideal empty space in the channel path of 100130076 8 201233455 to make uniform coating easier. The leveling roller can also be disposed only before and after the winding direction of the winding. In any case, the type of the winding material in the present invention is not particularly limited, and the type of the winding material in the present invention is not particularly limited. The present invention is applied to all of the winding materials requiring uniform coating of the coating liquid. Representatively, as described above, a metal foil or a resin film can be used as the winding material in the present invention. (Effect of the invention) Uniform coating according to the present invention In the winding coating apparatus of the invention, on the one hand, the winding material in the position of the slit-shaped opening of the material-feeding means is disposed in the middle direction, and the slit-like discharge σ is opposed to the slit-shaped discharge σ. At a position, a pressing means for pressing the plant with a uniform pressing force toward the slit-shaped discharge port in the width direction of the winding is provided, so that the winding material in the coating can be used, = for the slit shape Sputum discharge The cloth portion is applied by applying pressure-surface at an appropriate pressing force which is uniform in the width direction of the winding and can also be allowed to be displaced to the opposite side of the narrow (four) opening, so that the surface can be prevented as in the form of a combined cloth. The foreign matter is embedded (4), the unevenness of the stripe coating caused by the failure or the assembly of the fine material is generated, and the coating unevenness caused by the sway of the winding or the bending or slack of the wound itself is prevented. Embodiments of the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. 100130076 201233455 Fig. 1 is a view showing a winding coating apparatus according to a first embodiment of the present invention, and Fig. 2 shows a more specific form thereof. In Fig. 1 and Fig. 2, small u indicates that the winding coating device is disposed in the 戎 winding coating, and the S t channels 3 and 13 of the windings 2 and 12 during the movement are arranged as a coating liquid supply. The coating heads 4, 14 of the means can be applied by a roll-off method. The slits of the coating heads 4, 14 extending in the width direction of the windings 2, 12 are continuously or intermittently applied to the surface (single side) of the windings 2, 12 in the movement. The predetermined coating liquid discharged from the discharge ports 5 and 15 is used as the coating film i6. In the form shown in Fig. 1, the air passage 3 of the winding 2 is formed between rollers (smooth rollers) 6, 7 having a relatively small diameter 'in the form shown in Fig. 2, the winding 12 The air passage 13 is formed between a relatively large diameter roller 17 and a relatively small diameter roller 18. The coating liquid is discharged from the coating heads 4 and the manifolds 8, 19 in the μ to the surfaces of the windings 2 and 12 through the slit-like discharge ports 5 and 15. In the roll coating apparatus 1x11 of the above-described roll type, the slit-shaped discharge ports 5 and 15 are disposed on the air passages 3 and 13 of the windings 2 and 12 on the one hand, and the windings are arranged on the one hand. 2, 12 is placed in the middle and is opposed to the outlets of the slit-shaped discharge ports 5, 15, and the outlets facing the slit-shaped discharge ports 5, 15 are provided with equal pressing force in the width direction of the winding body. The rolling means 2, 12 is a pressing means for applying pressure, and in this embodiment, the pressing means is constituted by sponge rolls 9, 20 formed by sponge on the surface of the roll. In the winding coating apparatuses 1 and 11, basically, the coating is applied from the roll. Therefore, the positions of the windings 2 and 12 in the moving of the slit-shaped discharge ports 5 and 15 are at 100130076 10 201233455 and The direction in which the exit is close to and away from the direction contains a moderate degree of freedom, so that the disadvantage of the roll coating method, that is, the unevenness of the coating caused by the failure of the foreign matter embedding or the assembly accuracy, etc., can be prevented. Further, by the surface elasticity of the sponge rolls 9, 20, the wound articles 2, 12 are always oriented toward the slit-like discharge ports 5, 15 in the width direction of the windings 2, 12 with an appropriate uniform pressing force. Since the outlet (that is, the coating liquid application portion) is pressed, the sway of the windings 2, 12 is suppressed, and the windings 2, 12 are wound even if the windings 2, 12 themselves have disadvantages such as bending or slack. The coating liquid is continuously moved in a state of being in contact with the slit-shaped discharge ports 5 and 15 through the discharge coating liquid, and is applied. In particular, by appropriately setting the outer diameter of the sponge rolls 9, 20 or the hardness or thickness of the sponge forming the surface of the roll, it can exhibit a uniform and optimum coating state. As a result, it is possible to prevent coating unevenness caused by defects such as the sway of the windings 2, 12 or the bending or slack of the windings 2, 12 themselves, which are disadvantages of the conventional roll coating method. Uniform coating of the coating liquid, in particular, uniform coating with a film. Fig. 3 is a view showing a winding coating apparatus according to a second embodiment of the present invention, and Fig. 4 is not a more specific embodiment. In the winding coating apparatuses 21 and 31 shown in FIG. 3 and FIG. 4, 'the windings 2 and 12 are uniformly pressed by the outlet toward the slit-shaped discharge ports 5 and μ in the winding width direction. The configuration other than the pressing means for applying pressure is substantially the same as the configuration shown in Figs. 1 and 2, and therefore the same reference numerals as those in Fig. 2 are denoted by the same reference numerals, and the description thereof will be omitted. In the present embodiment, the pressing means for pressing the windings 2, 12 at the outlet width of the slit-shaped discharge ports 5, 15 in the width direction of the winding 100130076 11 201233455 is The chambers 24 and 33 are provided at positions facing the outlets of the slit-shaped discharge ports 5 and 15 and having pressurizing chambers 23 and 32 for introducing pressurized gas 22 (for example, pressurized air). The pressure chambers 23, 32 are open toward the windings 2, 12 so that the pressure of the pressurized gas 22 can be loaded on the windings 2, 12.幵> The chamber 24 of the pressurizing chamber 23 may be configured to extend between the rolls 6 and 7 as shown in Fig. 3 (either in the form of the pressurizing chamber 23 covering the rolls 6, 7 or in addition) The pressure chamber 23 does not cover the state of the rollers 6, 7), and as shown in FIG. 4, the rollers 34, 35 having a relatively small diameter are disposed in the range of the air passage 13 formed between the roller 17 and the roller 18. It is configured to extend between the rollers 34 and 35. In the latter case, the rollers 34, 35 can also function as a rough sealing means for the pressurizing chamber 32 in the moving direction of the wound. By the yoke pressure means constituting the form of the chambers 24, 33 having the pressurizing chambers 23, 32, the pressure of the introduced pressurized gas and the pressing force acting on the windings 2, 12 are appropriately set. The size of the region (pressurized region: the open region of the windings 2, 12 facing the pressurizing chambers 23, 32) may be appropriately pushed toward the outlet of the slit-like discharge ports 5, 15 when the pressure is lifted (painted) The liquid application portion) uniformly presses the windings 2, 12' in the width direction of the winding so that the film can be uniformly coated. Since the pressing of the pressurizing chambers 23 and 32 is compared with the pressing of the sponge roller, the pressing force can be applied to the windings 2 and 12 across a wider area, so that, for example, the windings 2 and 12 are localized. When the slack is spread and the slack spreads over a certain area, the wraps 2, 12 can be uniformly pressed with the appropriate pressing force toward the 100130076 12 201233455 slit-shaped discharge ports 5, 15. Further, in the embodiment shown in Figs. 3 and 4, the rollers 6, 7 and the rollers 34, 35 disposed in the front and rear of the winding directions of the windings 2, 12 of the pressurizing chambers 23, 32 are fixed in position. However, if, for example, the positional adjustment is possible in the moving direction of the windings 2, 12, the area of the pressing portions 23, 32 facing the open areas of the windings 2, 12 can be slightly adjusted. Of course, the chambers 24, 33 themselves may be configured in advance to adjust the area of the open areas of the pressurizing chambers 23, 32. Further, the rolls 6, 7 or the rolls 34, 35 are basically free rolls (in other words, the rolls which are rotated in conjunction with the movement of the winding), but if the driving is driven by a small torque, for example, The tension applied to the windings 2, 12 during movement can be alleviated, and the wrinkles of the windings 2, 12 caused by the tension can be prevented, and the uniform coating in a more desirable state can be made. (Industrial Applicability) The winding coating apparatus of the present invention can be applied to coating of all wounds requiring uniform coating, and is particularly suitable for use in film coating of a metal foil or a resin film. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic side view showing a winding coating apparatus according to a first embodiment of the present invention. Fig. 2 is a perspective view showing a winding coating apparatus which is more specific than the embodiment of Fig. 1. Fig. 3 is a schematic side view of a winding coating apparatus according to a second embodiment of the present invention 100130076 13 201233455. The figure is a perspective view of a winding coating apparatus which is not more specific than the embodiment of Fig. 3. Fig. 6 is a perspective view showing an example in which the metal case is not subjected to the bottom coating. Fig. 6 is a perspective view showing a conventional example of the combination of the cloth and the cloth. Fig. 7 is a perspective view showing a conventional roll coating method having a suction mechanism. [Description of Main Element Symbols] Fig. 8 is a perspective view showing an example of a conventional off-target coating method. 1, 11, 21, 31 Winding coating device 2, 12, 111 Winding 3 ' 13 Air passage 4 ' Η , 113 , 121 Coating head 5 , 15 , 114 , 122 Slit discharge 〇 6, 7 Leveling roller 8 ' 19 manifold 9 ' 20 sponge roller 16 > 115 coating film 17 large diameter roller 22 pressurized gas 23, 32 pressurized chamber 100130076 14 201233455 24, 33 chamber 34, 35, 18 * 101 metal foil* 102 undercoat layer 103 protective coating 112 support roller 123 vacuum suction port 131 ' 132 roller 100130076