200914147 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種液體之塗布方法及裝置，尤其係關於 -種含固體粒子等固體成分之液體之塗布方法及裝置。 【先前技術】 先前’為塗布含固體粒子之液體，考慮有防止固體粒子 沈降之方法。於專利文獻】中，揭示有使含固體粒子之液 體噴出之方法及裝置。專利文獻丨中，設置兩個以上之注 射益’並藉由通路而連通注射器之間。於通路中設置著自 動嘴出閥。藉由壓縮空氣對其中一個注射器施加壓力，使 液體自其中一個注射器通過通路而流向另一注射器。由於 使流經通路之液體由自動喷出閥喷ώ，因此，能準確地喷 出液體而不會使液體中之固體粒子沈降。 又，專利文獻2中揭示有一種塗布方法，係自狭縫噴嘴 對移動之網狀物塗布含固體粒子之液體。狹縫喷嘴由縫隙 與蓄液槽構成。液體藉由泉而自液體供給貯槽供給至狹縫 :嘴。將較網狀物之塗布量過剩之液體供給至蓄液槽，並 精由其他泵而自狹縫噴嘴之排出口將未自縫隙塗布之剩餘 液體強制性抽出，使之返回至液體供給貯槽。 又，專利文獻3中揭示有一種使用填隙片之狹縫噴嘴。 狹縫噴背包括上塊、下塊以及配置於上塊與下塊之間之填 填隙片其側面被加工成圓錐狀，以使得塗布膜之兩 端邛不會產生隆起部分。於下塊中，沿著長度方向(橫向） 而形成有歧管（凹模）。歧管與液體供給管連通。 131450.doc 200914147 此外，專利文獻4中 嘴。 丌揭不有一種使用填隙片之狹縫噴 又’專利文獻5中揭示右—括十Λ 種衣架形狹縫喷嘴。狹縫喷 嘴b括接收液體之入口、 〃入口連通之歧管、盥歧管靖 之縫隙以及噴出液體之 …、歧通 為了使自入口接收之液 體向左右方向分散以自鲦 形成為衣架形。 '縫隙開口均勻地塗布液體，歧管係 再者，若使歧管形成為如此之衣架形，則可使含固體粒 子之液體之寬度方向之分 > 刀政性良好，亦可防止固體粒子之 沈著或堆積。又，亦可傕& 使液體之見度方向之速度分布 量分布）大致均勻。秋而，六士 a …、而’存在自狹縫喷嘴之入口至辰部 為止之長度變長之問題。 Q ° 又'，專利文獻6中揭示有-㈣統，係使液體於狹縫喷 嘴與液體供給貯槽之間循環。使狹縫㈣之歧管之兩端部 通至排液路，將液體之—部分排出至排液路。排液路㈣ 回流管而連接於液體供給貯槽。藉由使用該系統，即便開 關設於狹縫喷嘴之播板時，亦可減少自歧管至狹縫噴嘴i 噴出口為止所存在之液體之壓力變動，使液體自塗布開始 至停止為止均能均勻地冑出，#而可使塗布膜之厚度^ 勻。 又 [專利文獻1]日本專利特開20〇3 3〇〇〇〇〇號公報 [專利文獻2]日本專利特開平2_24丨5 73號公報 [專利文獻3]曰本專利特開2〇〇4_3〇5955號公報（圖！、圖 131450.doc 200914147 [專利文獻4]曰本專利特開平n_1883〇1號公報（圖7) [專利文獻5]日本專利特開2〇〇卜2868〇6號公報（段落 0017、圖 2、圖 3(B)) [專利文獻6]曰本專利特開平丨〇_289 1 5號公報（圖6、請求 項4、段落〇〇17、段落0025、段落〇〇28) 【發明内容】 [發明所欲解決之問題] 例如，如專利文獻3中所揭示，先前之狹縫噴嘴設置有 :狹縫噴嘴之長度方向（寬度方向）延伸之細長通道狀之歧 s (凹模）。於形成有如此之歧管之狹縫喷嘴中，若構成為 例如使用以供給液體之入口與該歧管之中央部連通，將含 體粒子之液體供給至狹縫噴嘴之中央部之入口，則液體 面自歧官之中央部沿著歧管彼此反向地流動，一面通過 與歧管連通之縫隙而塗布於被塗物上。於此情形時，由於 夜體之•動不會彼此碰撞，因此塗膜上不會產生匯流紋， :而較好。然而存在如下問肖：於歧管兩端部之流動朝向 填隙片開口處形成之狹縫之方向轉化部位（角部）中，固體 2子或泡會沈降而堆積，且該堆積之粒子等不斷被排出 等，從而無法穩定地獲得粒子分布均勻之塗膜。 作為防止該歧管之兩端部之粒子之堆積，以使液體一直 *子之刀放狀態而沿寬度方向均勻地流出之方法，考 慮如^利文獻5所揭示般使歧管為衣架形狀。然而，於此 ^ 存在狹縫喷嘴之長度（狹縫噴嘴之歧管之入口至 、喷出口為止之長度）會變長而導致狹缝喷嘴大型化 131450.doc 200914147 之問題。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for coating a liquid, and more particularly to a method and apparatus for coating a liquid containing solid components such as solid particles. [Prior Art] Previously, in order to apply a liquid containing solid particles, a method of preventing sedimentation of solid particles was considered. In the patent document, there is disclosed a method and apparatus for ejecting a liquid containing solid particles. In the patent document, two or more injections are provided and communicated between the syringes by passage. An automatic nozzle outlet valve is provided in the passage. Pressure is applied to one of the syringes by compressed air to cause liquid to flow from one of the syringes through the passage to the other. Since the liquid flowing through the passage is squirted by the automatic discharge valve, the liquid can be accurately ejected without sedimenting the solid particles in the liquid. Further, Patent Document 2 discloses a coating method in which a liquid containing solid particles is applied to a moving web from a slit nozzle. The slit nozzle is composed of a slit and a liquid storage tank. The liquid is supplied from the liquid supply tank to the slit by the spring: the mouth. The liquid excess of the coating amount of the mesh is supplied to the liquid storage tank, and the remaining liquid not coated from the slit is forcibly extracted from the discharge port of the slit nozzle by other pumps, and returned to the liquid supply tank. Further, Patent Document 3 discloses a slit nozzle using a shim. The slit spray back includes an upper block, a lower block, and a filling gap disposed between the upper block and the lower block, the sides of which are processed into a conical shape so that the both ends of the coating film do not generate a raised portion. In the lower block, a manifold (a die) is formed along the length direction (lateral direction). The manifold is in communication with the liquid supply tube. 131450.doc 200914147 In addition, the mouth of Patent Document 4 is used. There is no slit spray using a shimming sheet. The patent document 5 discloses a right-and-six-shaped coat hanger-shaped slit nozzle. The slit nozzle b includes an inlet for receiving the liquid, a manifold for connecting the inlet of the crucible, a slit for the manifold, and a liquid to be ejected. The liquid is formed in a hanger shape in order to disperse the liquid received from the inlet in the left-right direction. 'The slit opening uniformly coats the liquid, and the manifold is further. If the manifold is formed into such a hanger shape, the width direction of the liquid containing the solid particles can be made good. The knife is good and the solid particles can be prevented. Sink or pile up. Further, it is also possible to make the velocity distribution of the liquid visibility direction substantially uniform. In the autumn, the six a', and the 'there is a problem that the length from the entrance of the slit nozzle to the length of the slit becomes longer. In the case of Q °, 'the patent document 6 discloses that the liquid is circulated between the slit nozzle and the liquid supply tank. The both ends of the manifold of the slit (4) are passed to the draining path, and the liquid portion is discharged to the draining path. The drain circuit (4) is connected to the liquid supply tank by a return pipe. By using this system, even when the switch is disposed on the curtain plate of the slit nozzle, the pressure fluctuation of the liquid existing from the manifold to the discharge port of the slit nozzle i can be reduced, so that the liquid can be applied from the start to the stop of the coating. Evenly, the thickness of the coating film can be made uniform. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Laid-Open No. Hei. No. 5,955, pp. (Paragraph 0017, Fig. 2, Fig. 3(B)) [Patent Document 6] Japanese Patent Laid-Open No. _289 1 5 (Fig. 6, Request Item 4, Paragraph 17, Paragraph 0025, Paragraph 〇〇 28) [Disclosure of the Invention] [Problems to be Solved by the Invention] For example, as disclosed in Patent Document 3, the prior slit nozzle is provided with an elongated channel-like difference s extending in the longitudinal direction (width direction) of the slit nozzle. (female mold). In the slit nozzle in which such a manifold is formed, if the inlet for supplying the liquid is communicated with the central portion of the manifold, for example, the liquid containing the body particles is supplied to the center of the slit nozzle. At the entrance of the department, the liquid surface flows in the opposite direction of the manifold from the central part of the officer. The gap is connected to the manifold and applied to the object to be coated. In this case, since the movement of the night body does not collide with each other, no bust pattern is formed on the coating film, but it is preferable. Xiao: In the direction-converting portion (corner portion) where the flow of the both ends of the manifold is directed toward the slit formed at the opening of the shim, the solid 2 or the bubble will settle and accumulate, and the accumulated particles and the like are continuously discharged. Therefore, it is not possible to stably obtain a coating film having a uniform particle distribution. As a method of preventing the deposition of particles at both end portions of the manifold, the liquid is uniformly discharged in the width direction in a state in which the liquid is always placed in the width direction, and is considered as ^ The manifold is in the shape of a hanger as disclosed in the document 5. However, the length of the slit nozzle (the length from the inlet to the outlet of the manifold of the slit nozzle) is long, and the slit nozzle is large. Problem with 131450.doc 200914147.
之情形 之液體 塗布裝置中，促進液體中之粒子分散之方法。 [解決問題之技術手段] 為解決上述課題，本發明之液體塗布方法如下。 亦即，一種液體塗布方法 ’其設置有下述步驟：藉由第 一泵（2)將液體供給貯槽（1)内之液體壓送至第一噴搶（4); 藉由間歇性地開關第一喷搶（4)而於分散器（5)中使液體分 散，於壓力容器（3)内將液體維持為特定壓力（p丨）；將壓力 容器（3)内之液體壓送至喷嘴（1〇、2〇、4〇、5〇、70);自喷 鳴（10、20、40、50、70)將液體塗布於被塗物（U、22) 上；以及使剩餘之液體自噴嘴（10、2〇、4〇、5〇、7〇)返回 至液體供給貯槽（1)。 又’一種液體塗布裝置（1 〇〇)，其包括：液體供給貯槽 (1) ’其貯存開放為大氣壓之液體；壓力容器（3)，其以特 定壓力（P1)貯存液體；第一泵（2)，其將液體供給貯槽（1)内 之液體壓送至壓力容器（3);第一噴搶（4)，其配置於第一 泵（2)與壓力容器（3)之間；紊流分散器（5)，其配置於第一 噴搶（4)與壓力容器⑺之間；以及噴嘴（1〇、2〇、4〇、5〇、 70) ’其將壓力容器（3)内之液體塗布於被塗物（11、22) 上’且使剩餘之液體返回至液體供給貯槽（1)。 [發明之效果] 131450.doc 200914147 能夠塗布粒子 根據本發明，可防止液體中之粒子沈降 得以均勻分散之液體，故而特別有用。 藉 嘴， 由使用本發明實施例之具有液體之返 可形成無匯流紋之塗膜。 回出口之狹縫噴 根據本發明實施例，可防止作為噴嘴塊之液體供給流路 之歧管中之液體之沈著，又，可清洗流路。 根據本發明實施例，可縮短自狹縫喷嘴之歧管入口至縫 隙出口為止之距離。又，可使狹縫噴嘴之寬度方向之分布 均勻地（均勻臈厚）塗布粒子得以均勻分散之液體。 【實施方式】 以下，根據較佳實施形態，一面參照圖式一面說明本發 明。其中，以下實施形態中所揭示之構成零件之尺寸、= 質、形狀及其相對配置等，只要無特別指定之揭示，則本 發明之範圍並不僅限於該等。 [實施例1]In the case of a liquid coating apparatus, a method of promoting dispersion of particles in a liquid is provided. [Technical means for solving the problem] In order to solve the above problems, the liquid coating method of the present invention is as follows. That is, a liquid coating method is provided with the steps of: pumping the liquid in the liquid supply tank (1) to the first spray (4) by the first pump (2); by intermittently switching The first spray (4) disperses the liquid in the disperser (5), maintains the liquid at a specific pressure (p丨) in the pressure vessel (3), and pressurizes the liquid in the pressure vessel (3) to the nozzle (1〇, 2〇, 4〇, 5〇, 70); applying liquid to the object to be coated (U, 22) from the sound (10, 20, 40, 50, 70); and making the remaining liquid The nozzles (10, 2, 4, 5, 7) are returned to the liquid supply reservoir (1). A liquid coating device (1) comprising: a liquid supply tank (1) 'which stores a liquid that is open to atmospheric pressure; a pressure vessel (3) that stores a liquid at a specific pressure (P1); a first pump ( 2), the liquid is supplied to the pressure vessel (3) by the liquid supply to the pressure tank (1); the first spray (4) is disposed between the first pump (2) and the pressure vessel (3); a flow disperser (5) disposed between the first spray (4) and the pressure vessel (7); and a nozzle (1〇, 2〇, 4〇, 5〇, 70) 'which will be inside the pressure vessel (3) The liquid is applied to the object to be coated (11, 22) and the remaining liquid is returned to the liquid supply tank (1). [Effects of the Invention] 131450.doc 200914147 Capable Particles According to the present invention, it is particularly useful to prevent a liquid in a liquid from being deposited and uniformly dispersed. By the mouth, a coating film having no bust can be formed by using the liquid having the embodiment of the present invention. Slot Spray of the Outlet According to the embodiment of the present invention, it is possible to prevent the liquid from being deposited in the manifold of the liquid supply flow path of the nozzle block, and to clean the flow path. According to an embodiment of the invention, the distance from the manifold inlet of the slit nozzle to the slit outlet can be shortened. Further, the distribution of the slit nozzles in the width direction can be uniformly (evenly thickened) the liquid in which the coated particles are uniformly dispersed. [Embodiment] Hereinafter, the present invention will be described with reference to the drawings in accordance with preferred embodiments. Here, the dimensions, quality, shape, relative arrangement, and the like of the components disclosed in the following embodiments are not limited to those described above unless otherwise specified. [Example 1]
圖1係表示本發明實施例液體塗布裝置ι〇〇之圖。 液體供給貯槽1向大氣開放。液體供給貯槽丨經由導管U 而與第一泵2連通。導管L1連接於液體供給貯槽底部。 第一泵2經由導管L2而與壓力容器3連通。第一喷搶（開關 閥）4以及作為分散器之紊流分散器5設於導管L2中。於第 一泵2之下游設置著第一噴搶4,且於第一喷搶4之下游設 置著紊流分散器5，於紊流分散器5之下游設置著壓力容器 3。苐一泵2自液體供給貯槽〗經由第一喷搶4以及紊流分散 1§5而將液體愿送至塵力容器3。 131450.doc •10- 200914147 壓力谷1§3例如設為壓力釜，經由導管l3而與壓縮空氣 源6連通。於導扣中，設置著帶高靈敏度泄放閥之調節 器7以及電磁閥8。壓縮空氣自磨縮空氣源6供給至麼力容 器3。壓力容器3藉由帶高靈敏度掩放閥之調節器7以及電 磁閥8而保持為特定壓力P1。壓力容器3内之液體藉由液位 控制器9而使其液面高度維持為固定。 即便自第一录2壓送之液體存在脈動，壓力容器3亦可藉 由帶高靈敏度泄放閥之調節器7而保持為特定壓力ρι。 壓力容器3經由導管L4而與喷嘴1〇連通。導管L4連接於 壓力容器3之底部。喷嘴1G經由導管。而與液體供給貯槽i 連通。噴嘴ίο將自壓力容器3經由導管“而以特定壓力ρι 供給之液體塗布於被塗物丨丨上。剩餘之液體自喷嘴1〇經由 導gL5而返回至液體供給貯槽1中，其後，供給至壓力容 為3中供循環使用。 當液體供給貯槽1内之液體被消耗時’將自補充貯槽12 補給液體。於補充貯槽12之底部連接著導管L6。於導管L6 中π置著第二泵13。第二泵π自補充貯槽12將液體壓送至 第一噴搶（開關閥）14。第二喷搶14經由導管乙7而與液體供 給貯槽1連通。第二噴槍14使剩餘之液體經由導管以返回 至補充貯槽12而使液體循環。又，間歇性（脈衝性）地開關 第二噴搶14，以第二泵13之噴射壓力使粒子良好地分散於 液體中即可。 再者，亦可將補充貯槽12内之液體補充至壓力容器3。 於此情形時，於導管L7中設置三向閥15，並藉由導管匕9而 131450.doc -II - 200914147 連通三向閥15與壓力容器3。藉由切換三向閥15，可將補 充貯槽I2内之液體壓送至壓力容器3。 作為液體，可適用若攪拌混合則能均勻混合但靜止狀態 下成分會彼此分離之液體或者溶融體、聚合物與不良溶劑 之混合物、或者含有固體粒子或纖維等固體成分之液體。 作為固體成分，可適用聚合物、有機物、無機物或者填光 體等。液體亦可為混有相對較大粒子之液料粉體聚料、 或者混有較小粒子之液體即分散劑（分散液）或懸浮液。或 者，作為液體，亦可適用無論是否含有固體粒子相溶性均 較差之二種以上之混合液體。又，亦可適用僅含自身可分 離之聚合物之液體。本實施例中所使用之液體包含作為磷 光體之3種磷光體（紅色R、綠色G、藍色B)、黏合劑 (binder)以及溶劑。該等3種磷光體R、G、B之粒徑、比重 各不相同’係粒徑為3〜5微米之粒子，比重為3〜5。包含該 等磷光體、黏合劑、溶劑之液體之固體成分約為观，該 液體之黏度為200毫帕斯卡秒（mpa.s)。該麟光體之固體粒 子會沈澱1 0%〜50%。 較好的是，含固體粒子之液體—直為分散狀態，以使固 體粒子不會沈殿。因此，、士 # b /夜體塗布裝置100於液體供給貯 ^㈣力容器3之間，設置有第一果2、第一噴搶4以及奮 流分散器5。進而’液體塗布裝置1〇〇使液體自液體供給貯 導官L2、壓力容器3、導管L4、噴嘴ι〇以及導管。，朝向 液體供給貯槽1循環。藉此，可防止固體粒子之沈降、沈 131450.doc 200914147 激、堆積、凝聚’並且有助於粒子之分散。 如圖2所示，第一泵2為活塞泵即可。其原因在於，齒輪 泵有可能會咬合固體粒子，但活塞泵不存在如此之可能。 活塞泵2包括泵缸2a以及於泵缸2a内沿雙向箭頭八所示方向 作往復運動之活塞2b。於活塞泵2之入口 2c與出口 2d上分 別設置有止逆閥16、17。止逆閥16防止自活塞泵2朝向^ 體供給貯槽1之逆流。止逆閥17防止自第—喷搶4朝向活塞 栗2之逆流。藉由使活塞2b沿雙向箭頭續示方向作往復^ 動，而將液體壓送向第一噴槍4。 第一喷槍4將液體間歇性（斷續性、脈衝性）地噴 流分散器5。第一噴槍4之喷出週期如圖3⑷所巾，例如於 每-週期約秒内噴出約〇.〇5秒〜2秒鐘之液體。又，如圖 3⑻所示，例如可於每一週期約〇1秒内，以喷出約〇_ 之極紐時間週期，極短時間地噴出液體。該圖叫、㈨表 示使用果喷射塵力P2無脈動地以固定屢力持續喷出（排 液體之雙活塞.雙動型活突爷 _BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a liquid application apparatus according to an embodiment of the present invention. The liquid supply tank 1 is open to the atmosphere. The liquid supply tank 连通 is in communication with the first pump 2 via the conduit U. The conduit L1 is connected to the bottom of the liquid supply tank. The first pump 2 is in communication with the pressure vessel 3 via a conduit L2. The first blasting (switching valve) 4 and the turbulent disperser 5 as a disperser are provided in the duct L2. A first spray 4 is disposed downstream of the first pump 2, and a turbulent disperser 5 is disposed downstream of the first spray 4, and a pressure vessel 3 is disposed downstream of the turbulent diffuser 5. The first pump 2 is sent from the liquid supply tank to the dust container 3 via the first spray 4 and the turbulent dispersion 1 § 5. 131450.doc •10- 200914147 The pressure valley 1 § 3 is, for example, an autoclave that communicates with the compressed air source 6 via a conduit l3. In the guide buckle, a regulator 7 with a high sensitivity relief valve and a solenoid valve 8 are provided. Compressed air is supplied from the source of scrubbing air 6 to the force vessel 3. The pressure vessel 3 is maintained at a specific pressure P1 by a regulator 7 with a high-sensitivity masking valve and an electromagnetic valve 8. The liquid in the pressure vessel 3 is maintained at a constant level by the liquid level controller 9. Even if the liquid fed from the first recording 2 is pulsated, the pressure vessel 3 can be maintained at a specific pressure ρ by the regulator 7 with the high sensitivity relief valve. The pressure vessel 3 is in communication with the nozzle 1 via a conduit L4. The conduit L4 is connected to the bottom of the pressure vessel 3. The nozzle 1G is via a conduit. It is in communication with the liquid supply tank i. The nozzle ίο applies a liquid supplied from the pressure vessel 3 via the conduit to the object to be coated at a specific pressure ρ. The remaining liquid is returned from the nozzle 1 to the liquid supply tank 1 via the guide gL5, and thereafter, supplied The pressure capacity is 3 for recycling. When the liquid in the liquid supply tank 1 is consumed, the liquid will be replenished from the replenishing tank 12. The conduit L6 is connected to the bottom of the replenishing tank 12. The second portion is placed in the tube L6. Pump 13. The second pump π pressurizes the liquid from the replenishing tank 12 to the first spray (switch valve) 14. The second spray 14 communicates with the liquid supply tank 1 via the conduit B. The second spray gun 14 causes the remaining The liquid is circulated through the conduit to return to the replenishing tank 12. Further, the second squirt 14 is intermittently (pulsed), and the particles are well dispersed in the liquid by the ejection pressure of the second pump 13. Alternatively, the liquid in the replenishing tank 12 can be replenished to the pressure vessel 3. In this case, a three-way valve 15 is provided in the duct L7, and the three-way valve is connected by the duct 匕9 and 131450.doc -II - 200914147 15 with pressure vessel 3. by cutting The three-way valve 15 can pressurize the liquid in the replenishing tank I2 to the pressure vessel 3. As the liquid, a liquid or a molten body, a polymer, and a poor which can be uniformly mixed while being stirred and mixed, but separated from each other in a stationary state can be applied. A mixture of solvents or a liquid containing solid components such as solid particles or fibers. As the solid component, a polymer, an organic substance, an inorganic substance, a filler, etc. may be used. The liquid may also be a liquid powder mixed with relatively large particles. A dispersing agent (dispersion) or suspension which is a liquid or a liquid in which small particles are mixed. Alternatively, as a liquid, a mixed liquid of two or more types which are inferior in compatibility with solid particles may be used. A liquid containing only a polymer which is separable by itself is used. The liquid used in the present embodiment contains three kinds of phosphors (red R, green G, blue B) as a phosphor, a binder, and a solvent. The particle sizes and specific gravities of the three kinds of phosphors R, G, and B are different. The particles having a particle diameter of 3 to 5 μm have a specific gravity of 3 to 5. These phosphors, binders, and solvents are included. The solid content of the liquid is about 200 millipascals (mpa.s). The solid particles of the spheroid will precipitate 10% to 50%. Preferably, the liquid containing solid particles - Straight to the dispersed state, so that the solid particles do not sink. Therefore, the Shi # b / night body coating device 100 between the liquid supply reservoir (four) force container 3, is provided with the first fruit 2, the first spray 4 And the liquid flow disperser 5. Further, the liquid application device 1 is configured to supply the liquid from the liquid to the reservoir L2, the pressure vessel 3, the conduit L4, the nozzle ι, and the conduit, and circulate toward the liquid supply tank 1. Prevents the sedimentation of solid particles, and swells, accumulates, and agglomerates 'and contributes to the dispersion of particles. As shown in Fig. 2, the first pump 2 is a piston pump. The reason is that the gear pump may bite the solid particles, but the piston pump does not have such a possibility. The piston pump 2 includes a pump cylinder 2a and a piston 2b that reciprocates in a direction indicated by a double arrow in the cylinder 2a. The check valves 16, 17 are provided at the inlet 2c and the outlet 2d of the piston pump 2, respectively. The check valve 16 prevents backflow from the piston pump 2 toward the supply tank 1. The check valve 17 prevents backflow from the first spray to the piston 2. The liquid is pressure-fed to the first spray gun 4 by reciprocating the piston 2b in the direction in which the two-way arrow continues. The first spray gun 4 sprays the liquid to the disperser 5 intermittently (intermittently, intermittently). The discharge period of the first spray gun 4 is as shown in Fig. 3 (4), for example, a liquid of about 5 seconds to 2 seconds is ejected in about seconds per cycle. Further, as shown in Fig. 3 (8), for example, in a period of about 1 second per cycle, the liquid can be ejected in a very short time by ejecting a period of about 〇. The figure is called, (9), the use of fruit spray dust force P2 without pulsation to continue to spray out with a fixed force (double piston of liquid discharge. Double action type live _ _
丄塞果之情形時之間歇開關模式。 又，弟-噴搶4之噴出週期如圖4(a)、（b)所示，可於藉由 活塞泵2施加壓力之期間打開第一喷槍 2所示之單活塞.單動型；^ 如圖 活㈣使液體受到：二_之情， 更夜體又到早向加壓壓縮而喷出 P2進行作用時，作為打開第一嗔搶 力 地開關第-喷搶4。圖4( 、週期，間歇(脈衝) 門传第()表不泵喷射屢力P2進行作用之期 =次之情形，圖4(b)表示泵噴㈣力 期間使第一喷搶4打開複數次之情形。上述 131450.doc 200914147 兩類型之活塞泵係採用空氣驅動之平衡饋給型，僅須擠入 所喷出之量，其後以固定壓力保持平衡。藉此，不會引起 如電動驅動式活塞泵或齒輪泵般之壓力之異常上升。再 者，上述第一喷搶4之開關模式為—例示，第一喷搶4之打 開％間、冑閉時間、開關週期(cycie)可根據液體種類或其 中所含之粒子之性狀等而採用各種不同模式。 、配置於第一喷搶4下#之音流分散器5設置有收縮部5a。 流入收縮部5a之液體，會於收縮部“之出口產生紊流，將 3種磷光體（紅色R、，綠色G、藍色B)與溶劑加以混合，改善 溶劑内之礙光體之分散。亦即’防止3種碟光體粒子之彼 此之粒子凝聚’使各粒子於液體中擴散且分散。作為紊流 分散器5，例如可使用節流孔。χ，亦可使用碰撞分散器 而取代奮流分散器5以作為分散器。該碰撞分散器，藉由 於分散器之流路中使液體與液體進行碰撞，或者藉由使液 體與碰撞板進行碰撞，從而改善分散。 活塞泵2之最大壓力Ρ2設定為高於壓力容器3之特定壓力 Ρ1 ’亦即高於該壓力容器3之出口之導管L4之液體壓力 P1。較好的是’活塞泵2之最大壓力P2為壓力容器3之特定 壓力P1之3〜5倍。X，為根據所處理之固體粒子之性狀而 進一步促進分散，亦有時設為6〜1G倍或者1()倍以上。該壓 力容器3之特定壓力以例如設為1〇叫〇1 kg/cm2)至⑽ KPa(l.〇 kg/cm2)。 於本實施例中，係使 之液體’藉由第一喷 喷嘴10係噴霧噴嘴或者狹縫噴嘴。 用喷霧噴嘴。供給至該喷霧噴嘴10中 131450.doc -14- 200914147 搶4之間歇性之開關所引起之衝擊波對液體中之付盘作用 與基於此之紊流分散器5之紊流產生作用，而使粒子擴散 更加良好，從而使粒子均勻地分散。藉此，可藉由喷霧喷 % 10而將由3種鱗光體尺、G、B構成之固體粒子得到均勾 勿散之液體噴霧（Spray)並塗布於被塗物丨1上。 [實施例2] 實施例2係於圖〗之實施例丨之液體塗布裝置1〇〇中使用 狹縫噴嘴20㈣代喷霧噴嘴1〇。f施例2之狹縫喷嘴⑽ 外之部分之液體塗布裝置，與實施例丨之液體塗布裝置〗〇〇 相同’故而省略說明。 圖5係本發明實施例2之狹縫噴嘴之說明圖。圖6係本發 明實施例2之狹縫噴嘴之縱剖面圖。 狹縫噴嘴20對支承輥21上之網狀物22塗布液體。如圖6 所示支承親21治箭頭B所示方向旋轉，並沿箭頭匚所示 方向運送網狀物22。狹縫喷嘴20與網狀物22接觸。 狹縫喷嘴20包含下塊23、上塊24、夾持於下塊23與上塊 24之間之填隙片25。於下塊23之上表面23a，形成有歧管 23b。歧管23b係沿狹縫喷嘴20之長度方向延伸之管狀槽。 下塊23設置有入口 23c ’入口 23c於下塊23之大致中央處與 歧管23b連通。下塊23設有兩個出口 23d、23e，兩個出口 23d、23e於狹縫喷嘴20之兩端部與歧管23b連通。 填隙片25由薄板製成’並設有寬度w以及長度L之缺口 部25a。藉由上塊24之下表面24a、下塊23之上表面23a以 及填隙片2 5之缺口部2 5 a，形成狹縫2 6。 131450.doc 15 200914147 供給噴搶27安裝於入口 23c處。供給噴搶27連接於導管 L4。供給噴搶27經由導管匕4而與壓力容器3之液體排出口 連通。 必回噴搶28安裝於出口 23d處。返回喷搶28連接於導管 L10。返回嘴搶28經由導管L1〇而與液體供給貯槽}連通。 於導管L10中，設置有收縮閥（針閥）29。 返回噴杨30安裝於出口 23e處。返回喷搶3〇連接於導管 L11。返回噴搶3〇經由導管lii而與液體供給貯槽}連通。 於導管LI 1中，設置有收縮閥（針閥）3丨。上述液體返回導 管L10、L11取代圖i之返回導管以而連接於液體供給貯槽 1 ° 自壓力容器3使液體經由導管L4、供給噴搶27、入口 23c 而供給至歧管23b。液體朝向左右兩端方向，亦即沿著箭 頭D以及E所示之方向流動，並且通過狹縫26而自唇部 喷出並塗布至網狀物22上。 實施例2之狹縫喷嘴20，於狹縫噴嘴2〇之大致中央部將 液體供給至歧管23b，且於狹縫噴嘴2〇之兩端部使液體自 歧管23b排出。藉此，可塗布液體而不會使塗膜上產生匯 流紋。又，含固體粒子之液體之沈著或堆積，亦不會產生 於歧管23b之任一位置上。供給至該歧管23b之液體，藉由 第一噴槍4之開關所引起之衝擊波對液體中之付與作用與 紊流分散器5之作用，而使粒子得以均勻分散。因此，固 體粒子得以均勻分散之液體不會於歧管23b内形成匯流， 而可自狭縫喷嘴20之唇部32噴出，並塗布於網狀物22上。 131450.doc •16· 200914147 2即，可將含固體粒子之液體均勻地進行塗布而形成無匯 机、、’文之塗膜。進而，於歧管23b中，由於流路無死空間’， 故而可容易地清洗歧管23b。 供給噴搶27以及兩個返回噴搶28、3〇，於運轉開始時同 時打開（ON)，又，於運轉停止時同時關閉（〇FF)。分 於返回喷搶28、30下游之收縮閥（針閥）29、31，對液體2 返回1進行調節。藉此，可使狹縫26之噴出壓士 衡。 、工十 再者，於粒子之沈降速度較慢之液體之情形時，亦可藉 由使供給噴搶27以及兩個返回噴搶28、3〇全部打開關 閉’而進行間歇塗布運轉。 又’供給噴搶27以及兩個返回喷槍28、3 〇亦可採用具備 收縮功能並且能夠進行開關（〇N/〇FF)動作之噴搶，以作為 可對閥與閥座之打開間隔進行調整之噴槍。於此情形時， 可併用該等喷搶與上述收縮閥29、3 1來調整收縮。 [實施例3] 實轭例3係於實施例1之液體塗布裝置1 〇〇中，使用狹縫 喷嘴40取代噴霧喷嘴。實施例3之狹縫喷嘴40以外之部 刀之液體塗布裝置，與實施例1之液體塗布裝置100相同， 故而省略說明。 圖7係本發明實施例3之狹縫喷嘴之說明圖。與實施例2 相同狹縫噴嘴40接觸於藉由支承親21之旋轉而移動之網 狀物22，對網狀物22塗布液體。 狹縫喷鳴40包括下塊41、上塊（未圖示）以及夹持於下塊 131450.doc 17 200914147 4 1與上塊（未圖示）之間之拮隨、y 间之填隙片42。於下塊41之上表面 41 a ’形成有歧管41 b。此答41 h总VL朴λ* + 歧& 41 b係沿狹縫噴嘴4〇之長度方 向延伸之管狀槽。下塊4〗却_右 龙41叹有入口 41c’入口 41c於下塊41 〜一端部與歧管41b連通-下抬< 士 b 思通-下塊41设有出口41(1，出口 41d 於狹縫噴嘴40之另一端部與歧管41b連通。 填隙片42由薄板製成’並設置有寬度W以及長度L之缺Intermittent switch mode when the situation is congested. Moreover, as shown in FIGS. 4(a) and 4(b), the discharge cycle of the jet-jet 4 can open the single piston shown in the first spray gun 2 during the application of the pressure by the piston pump 2. The single-acting type; ^ As shown in Fig. 4 (4), the liquid is subjected to: the second sensation, and the night body is again pressed to the pressure compression and the P2 is sprayed to act as the first smashing force. Figure 4 (, cycle, intermittent (pulse) gate transmission () table does not pump the injection force P2 to play the period = the second case, Figure 4 (b) shows the pump spray (four) force during the first spray 4 open plural In the second case, the above-mentioned 131450.doc 200914147 piston pump of the two types adopts an air-driven balanced feed type, which only needs to be squeezed into the amount to be ejected, and then is balanced at a fixed pressure, thereby causing no electric drive. The pressure of the piston pump or the gear pump is abnormally increased. Further, the switching mode of the first spray 4 is - for example, the opening % of the first spray 4, the closing time, and the cycie can be based on The different types of liquids or the properties of the particles contained therein, etc., are arranged in the first jet blasting machine. The sound stream diffuser 5 is provided with a constricted portion 5a. The liquid flowing into the constricted portion 5a is in the constricted portion. "The outlet produces turbulence, and the three phosphors (red R, green G, blue B) are mixed with the solvent to improve the dispersion of the hindrance in the solvent. That is, 'preventing three kinds of disc particles Particles condense with each other' so that each particle diffuses and disperses in the liquid As the turbulent disperser 5, for example, an orifice can be used. Alternatively, a collision disperser can be used instead of the struvrel disperser 5 as a disperser, which is caused by a liquid in the flow path of the disperser. The liquid collides, or the dispersion is improved by colliding the liquid with the collision plate. The maximum pressure Ρ2 of the piston pump 2 is set to be higher than the specific pressure 压力1 of the pressure vessel 3, that is, the conduit higher than the outlet of the pressure vessel 3. The liquid pressure P1 of L4. Preferably, the maximum pressure P2 of the piston pump 2 is 3 to 5 times the specific pressure P1 of the pressure vessel 3. X is to further promote dispersion according to the properties of the solid particles to be treated, and It is set to 6 to 1 G times or more than 1 (fold times). The specific pressure of the pressure vessel 3 is, for example, 1 〇 1 kg/cm 2 ) to (10) KPa (1. 〇 kg/cm 2 ). In the middle, the liquid is sprayed by the first spray nozzle 10 or the slit nozzle. The spray nozzle is supplied to the spray nozzle 10 131450.doc -14- 200914147 The effect of the shock wave caused on the liquid in the liquid and based on The turbulent flow of the turbulent flow disperser 5 acts to make the particles spread more well, so that the particles are uniformly dispersed. Thereby, the three kinds of scales, G, and B can be formed by the spray spray of 10%. The solid particles were sprayed with a liquid spray (Spray) and applied to the object to be coated 1. [Example 2] Example 2 was used in the liquid application apparatus 1 of the Example of the drawings. The nozzle nozzle 20 (four) generation spray nozzle 1 f. The liquid application device of the portion other than the slit nozzle (10) of the second embodiment is the same as the liquid application device of the embodiment ', and thus the description thereof is omitted. FIG. 5 is an embodiment of the present invention. An illustration of the slit nozzle of Example 2. Fig. 6 is a longitudinal sectional view showing a slit nozzle of a second embodiment of the invention. The slit nozzle 20 applies a liquid to the web 22 on the backup roll 21. The support 22 is rotated in the direction indicated by the arrow B as shown in Fig. 6, and the mesh 22 is conveyed in the direction indicated by the arrow 匚. The slit nozzle 20 is in contact with the web 22. The slit nozzle 20 includes a lower block 23, an upper block 24, and a shim 25 sandwiched between the lower block 23 and the upper block 24. On the upper surface 23a of the lower block 23, a manifold 23b is formed. The manifold 23b is a tubular groove extending in the longitudinal direction of the slit nozzle 20. The lower block 23 is provided with an inlet 23c'. The inlet 23c communicates with the manifold 23b at substantially the center of the lower block 23. The lower block 23 is provided with two outlets 23d, 23e, and the two outlets 23d, 23e communicate with the manifold 23b at both ends of the slit nozzle 20. The shim 25 is made of a thin plate and is provided with a notch portion 25a having a width w and a length L. The slit 26 is formed by the lower surface 24a of the upper block 24, the upper surface 23a of the lower block 23, and the notch portion 25a of the shims 25. 131450.doc 15 200914147 Supply spray 27 is installed at the entrance 23c. The supply spray 27 is connected to the conduit L4. The supply spray 27 is in communication with the liquid discharge port of the pressure vessel 3 via the conduit 4 . It must be returned to the outlet 23d. Return to spray squirt 28 and connect to conduit L10. The return nozzle grab 28 is in communication with the liquid supply reservoir} via the conduit L1〇. In the duct L10, a contraction valve (needle valve) 29 is provided. The return spray Yang 30 is installed at the outlet 23e. Return to the spray 3 〇 to connect to the catheter L11. The return spray 3 is connected to the liquid supply tank via the conduit lii. In the conduit LI 1, a shrink valve (needle valve) 3 is provided. The liquid returning pipes L10 and L11 are connected to the liquid supply tank 1 instead of the return pipe of Fig. i. The liquid is supplied from the pressure vessel 3 to the manifold 23b via the pipe L4, the supply spray 27, and the inlet 23c. The liquid flows toward the left and right ends, i.e., in the direction indicated by the arrows D and E, and is ejected from the lip through the slit 26 and applied to the web 22. In the slit nozzle 20 of the second embodiment, liquid is supplied to the manifold 23b at a substantially central portion of the slit nozzle 2, and liquid is discharged from the manifold 23b at both end portions of the slit nozzle 2''. Thereby, the liquid can be applied without causing a bust on the coating film. Further, the deposition or accumulation of the liquid containing the solid particles is not generated at any position of the manifold 23b. The liquid supplied to the manifold 23b is uniformly dispersed by the action of the shock wave caused by the opening of the first spray gun 4 on the liquid and the turbulent disperser 5. Therefore, the liquid in which the solid particles are uniformly dispersed does not form a confluence in the manifold 23b, but can be ejected from the lip portion 32 of the slit nozzle 20 and applied to the web 22. 131450.doc •16· 200914147 2 That is, the liquid containing solid particles can be uniformly coated to form a coating film without a machine. Further, in the manifold 23b, since the flow path has no dead space, the manifold 23b can be easily cleaned. The supply spray 27 and the two return sprays 28 and 3 are simultaneously turned ON at the start of the operation, and are simultaneously turned off (〇FF) when the operation is stopped. The return valve (needle valve) 29, 31 downstream of the spray blast 28, 30 is returned, and the liquid 2 is returned to 1 for adjustment. Thereby, the discharge of the slit 26 can be made gentle. Further, in the case of a liquid in which the sedimentation speed of the particles is slow, the intermittent coating operation can be performed by causing the supply spray 27 and the two return sprays 28 and 3 to be all closed and closed. In addition, the 'supply spray 27 and the two return spray guns 28, 3 〇 can also be used with a shrinking function and capable of performing a switch (〇N/〇FF) action as a gap between the valve and the valve seat. Adjust the spray gun. In this case, the contraction valves 29 and 31 can be used in combination to adjust the contraction. [Example 3] A solid yoke example 3 was used in the liquid application apparatus 1 of Example 1, and a slit nozzle 40 was used instead of the spray nozzle. The liquid application device of the blade other than the slit nozzle 40 of the third embodiment is the same as that of the liquid application device 100 of the first embodiment, and thus the description thereof is omitted. Fig. 7 is an explanatory view showing a slit nozzle of a third embodiment of the present invention. In the same manner as in the second embodiment, the slit nozzle 40 is in contact with the web 22 which is moved by the rotation of the support member 21, and the web 22 is coated with a liquid. The slit squealing 40 includes a lower block 41, an upper block (not shown), and a shimming piece sandwiched between the lower block 131450.doc 17 200914147 4 1 and the upper block (not shown). 42. A manifold 41b is formed on the upper surface 41a' of the lower block 41. This answer 41 h total VL λ λ * + & & 41 b is a tubular groove extending along the length of the slit nozzle 4 。. Lower block 4〗 _ Right dragon 41 sighs the entrance 41c' the entrance 41c is connected to the manifold 41b at the lower block 41~ one end-downlift< 士b思通-lower block 41 is provided with an exit 41 (1, exit 41d) The other end of the slit nozzle 40 communicates with the manifold 41b. The shim 42 is made of a thin plate and is provided with a width W and a length L.
口部42"。藉由上塊之下表面(未圖示）、下塊41之上表面 4 la以及填隙片42之缺口部42&，形成狹縫。 仏、喷搶44女裝於入口 41c處。供給喷搶44連接於導管 L4。供給噴搶44經由導fL4而與壓力容器3連通。 返回喷搶45安裝於出口 41d處。返回喷搶45連接於導管 5返回噴搶45經由導管L5而與液體供給貯槽1連通。 自壓力容器3使液體經由導管L4、供給喷槍私、入口 4ic 而供給至歧管41b中。液體沿單向，亦即沿箭頭F所示之方 向"IL動並且通過狹縫43而自唇部46噴出至網狀物22。 實施例3之狹縫噴嘴40於狹縫喷嘴40之一端部將液體供 ,、- 歧‘41b中，於歧管41b中形成單向流動，於狹縫喷嘴 20之另一端部使液體自歧管41b中排出。藉此，可塗布液 體而不會使塗膜中產生匯流紋。又，含固體粒子之液體之 匕著或堆積’亦不會產生於歧管41b之任一位置上。因 此’固體粒子得以均勻分散之液體不會於歧管41b内形成 ' 肉可自狹縫喷嘴40之唇部46噴出，並塗布至網狀物 0 0 U Λ- 。亦即’可均勻地塗布含固體粒子之液體而形成無匯 /;IL、、文之塗膜。進而，於歧管4 1 b中，由於流路中無死空 131450.doc -18- 200914147 間，故而可容易地清洗歧管4 1 b。 [實施例4] 實施例4係於實施例丨之液體塗布裝置1〇〇中，使用狹縫 喷嘴50取代噴霧喷嘴1 〇。實施例4之狹縫噴嘴5〇以外之邹 分之液體塗布裝置，與實施例i之液體塗布裝置丄〇〇相同， 故而省略說明。Mouth 42". The slit is formed by the lower surface (not shown) of the upper block, the upper surface 4 la of the lower block 41, and the notch 42 & of the shim 42.仏, spray rob 44 women at the entrance 41c. The supply spray 44 is connected to the conduit L4. The supply spray 44 is in communication with the pressure vessel 3 via the guide fL4. Return to spray blast 45 installed at the exit 41d. The return spray 45 is connected to the conduit 5 and the return spray 45 is in communication with the liquid supply reservoir 1 via the conduit L5. The pressure vessel 3 supplies the liquid to the manifold 41b via the conduit L4, the supply gun, and the inlet 4ic. The liquid moves in one direction, i.e., in the direction indicated by arrow F, and is ejected from lip 46 to web 22 through slit 43. The slit nozzle 40 of the third embodiment supplies liquid to one end of the slit nozzle 40, and forms a unidirectional flow in the manifold 41b, and makes the liquid self-discriminate at the other end of the slit nozzle 20. The tube 41b is discharged. Thereby, the liquid can be applied without causing a bust pattern in the coating film. Further, the squatting or stacking of the liquid containing the solid particles does not occur at any position of the manifold 41b. Therefore, the liquid in which the solid particles are uniformly dispersed does not form in the manifold 41b. The meat can be ejected from the lip portion 46 of the slit nozzle 40 and applied to the web 0 0 U Λ- . That is, a liquid containing solid particles can be uniformly applied to form a coating film having no sink/IL, and the like. Further, in the manifold 4 1 b, since there is no dead space 131450.doc -18- 200914147 in the flow path, the manifold 4 1 b can be easily cleaned. [Example 4] Example 4 was used in the liquid application apparatus 1 of Example ,, and the slit nozzle 50 was used instead of the spray nozzle 1 〇. The liquid applicator other than the slit nozzle 5 of the fourth embodiment is the same as the liquid applicator of the embodiment i, and thus the description thereof is omitted.
圖8係本發明實施例4之狹縫喷嘴之說明圖。與實施例2 相同，狹縫噴嘴50接觸於藉由支承輥之旋轉而移動之網狀 物22，並對網狀物22塗布液體。 狹縫喷嘴50包括下塊51、上塊（未圖示）以及夾持於下塊 51與上塊（未圖示）之間之填隙片52。於下塊“之上表面 51a，形成有歧管51b。歧管51b係沿狹縫噴嘴5〇之長度方 向延伸之管狀槽。下塊51設置有三個入口 5ie、51d、 51e。入口 51c於下塊51之大致中央處與歧管5沁連通。入 口 51d以及51e分別設於入口 51c之兩側。入口 5]^於中央之 入口 51C與狹縫噴嘴5〇之一端部之間之大致中央處與歧管 51b連通即可。入口 51e於中央之入口 5ic與狹縫喷嘴％之 另一端部之間之大致中央處與歧管51b連通即可。下塊Μ 又有兩個出口 51f、51g，兩個出〇51f、51g於狹縫噴嘴％ 之兩端部與歧管51b連通。 ' 填隙片S2由薄板製成，並設置有寬度w以及長度^之缺 口《卩52a。藉由上塊之下表面（未圖示）、下塊5丨之上表面 51a以及填隙片μ之缺口部S2a，形成狹縫53。 三個供給喷搶54' 55、56,分別安裝於三個入口 5ic、 131450.doc -19- 200914147 51d、51e處。三個供給噴搶54、55、56分別連接於自導管 L4而分支之三個導管L12、L13、L14。三個供給喷搶54、 55、56經由各自之導管[η、L13、L14以及導管L4而與壓 力容器3連通u 返回喷搶57安裝於出口 51f處。返回噴搶57連接於導管 L15。返回噴搶57經由導管L15而與液體供給貯槽1連通。 於導管L 1 5中設置有收縮閥（針閥。 返回噴搶59安裝於出口 51g處。返回噴搶59連接於導管 L16°返回噴槍59經由導管L16而與液體供給貯槽1連通。 於導管L 1 6令設置有收縮閥（針閥）6〇。上述液體返回導管 L15、L16取代圖1之液體返回導管！^5而連接於液體供給貯 槽1。 自壓力容器3使液體經由導管[4、導管L12、L13、 L14、供給噴搶54、55、56、入口 51c、51d、5 le而供給至 歧笞5 1 b。來自入口 5 1 c之液體朝向左右兩側，亦即沿著箭 頭G以及Η所示之方向流動，並且通過狹縫53而自唇部 喷出至網狀物22。來自入口 51d之液體沿箭頭〗所示之方向 流動。來自入口 51c之液體與來自入口 51d之液體匯流而形 成匯流紋61。來自入口 5 le之液體沿箭頭j所示之方向流 動。來自入口 51c之液體與來自入口 51e之液體匯流而形成 匯流紋62。 藉由使用實施例2以及實施例3之狹縫噴嘴，可防止如此 之匯SiL纹之產生。然而，於可交今士卜 A j谷汗如此之匯流紋之製品 中，可使用實施例4之狹縫噴嘴5〇。 131450.doc •20- 200914147 實施例4之狹縫噴嘴50，自狹縫噴嘴5〇之中央部之三處 將液體供給至歧管51bf，並於狹縫噴嘴5〇之兩端部使液 體自歧管51b排出。 分別設於返回喷槍57、59下游之收縮閥（針閥）58、6〇， 對液體之返回量進行調節。藉此，可使狹縫53之喷出壓力 左右平衡。 [實施例5] 實施例5係於實施例i之液體塗布裝置1〇〇中，使用狹縫 喷。^ 70取代噴霧喷嘴1 〇。實施例5之狹缝噴嘴7〇以外之部 分之液體塗布裝置，與實施例i之液體塗布裝置i 〇〇相同， 故而省略說明。 圖9係本發明實施例5之狹縫噴嘴之說明圖。與實施例2 相同，狹縫噴嘴70接觸於藉由支承輥21之旋轉而移動之網 狀物22 ’並對網狀物22塗布液體。 狹縫喷嘴70包括下塊71、上塊（未圖示）以及夾持於下塊 71與上塊（未圖不）之間之填隙片7 2。於下塊7丨之上表面 71a，形成有歧管71b。歧管7ib係沿狹縫喷嘴70之長度方 向延伸之管狀槽《下塊71設有兩個入口 71c、71d,兩個入 口 71c、71d於狹縫噴嘴7〇之兩端部分別與歧管71b連通。 下塊71設有出口 71e，出口 71 e於狹縫喷嘴7〇之大致中央處 與歧管71 e連通® 填隙片72由薄板製成，並設有寬度w以及長度l之缺口 部72a。藉由上塊之下表面（未圖示）、下塊乃之上表面71a 以及填隙片72之缺口部72a，形成狹縫73。 131450.doc -21 - 200914147 兩個供給喷搶74、7 β丨+ 75刀別女裝於兩個入口 71 c、7id處。 個供、。噴杨74、75分別與自導管L4而分支之兩個導管 LI:、L18連接。兩個供給喷搶74、75經由各自之導管 L1/、L18以及導管L4而與壓力容器3連通。 返回喷知76安|於出〇710處。返回噴搶％連接於導管 返回噴搶76經由導管[5而與液體供給貯槽^連通。 .自壓力容器3使液體經由導管£4、導管u7、Li8、供給 噴槍74 75、人D 71。、7Η而供給至歧管川之兩端部。 液體自歧管71b之兩端部流向歧管川之中央部，並且通過 狹縫73而自唇部78喷出至網狀物22。來自狹縫喷嘴7〇之兩 端部之入口 71c、7ld之液體，於狹縫噴嘴7〇之大致中央部 匯流而形成匯流紋7 7。 實施例5之狹縫噴嘴7 〇於狹縫喷嘴7 〇之兩端部將液體供 給至歧管71b，並於狹縫喷嘴7〇之大致中央部使液體自歧 管71b排出。 於實施例4以及實施例5中，來自設於狹縫噴嘴之複數個 入口之液體之流動會匯流，從而產生匯流紋。為防止匯流 紋之產生，可於噴嘴塊中設置一個衣架形液體供給路。然 而’對於衣架形液體供給路而言，由於自歧管至唇部為止 之長度變長，因此會導致狹縫喷嘴之尺寸變大。根據實施 例2以及實施例3，即便不設置衣架形液體供給路，亦可防 止匯流紋之產生，因而能縮小狹缝喷嘴之尺寸。 本發明並不限定於以上實施形態，只要不脫離特徵事 項，便可以其他多種形態而實施。因此，上述實施形態之 -22· 131450.doc 200914147 所有方面僅為你丨+& 值两例不，而並非限制性 藉由申請專利範圍所示，並不受說明：正本發明之範圍係 進而’屬於與申請專利範圍均；内文之任何約束。 為本發明之範圍内者。 目内之變形或變更均 【圖式簡單說明】 布裝置1〇〇之圖 圖1係表示本發明實施例丨之液體塗 圖2係表示活塞泵之圖。 圖3係表示噴槍之喷出週期之圖。 圖4係表示泵壓力與噴搶之噴出週期之關係之圖。 圖5係本發明實施例2之狹縫喷嘴之說明圖。 圖6係本發明實施例2之狹縫喷嘴之縱剖面圖。 圖7係本發明實施例3之狹縫噴嘴之說明圖。 圖8係本發明實施例4之狹縫喷嘴之說明圖。 圖9係本發明實施例5之狹縫喷嘴之說明圖。 【主要元件符號說明】 1 液體供給貯槽 2 第一泵（活塞泵） 2a 聚缸 2b 活塞 2c 入口 2d 出口 3 壓力容器 4 第一喷槍 5 紊流分散器（節流孔） I31450.doc -23 - 200914147 5 a 6 7 8 9 10 11 12 13 14 15 16、17 20 ' 40 ' 50 ' 70 21 22 23 、 41 、 51 、 71 23a、 41a、 51a、 71a 23b、41b、51b、 71b 23c、41c、51c、51d、 51e、71c、71d 23d、23e、41d、 51f、 51g 、 71e 收縮部 壓縮空氣源 帶高靈敏度泄放閥之調節器 電磁閥 液位控制器 喷嘴 被塗物 補充貯槽 第二泵 第二喷搶 三向閥 止逆閥 狹縫噴嘴 支承輥 網狀物 下塊 上表面 歧管 入口 出σ 131450.doc -24- 200914147 24 上塊 24a 下表面 25 、 42 、 52 、 72 填隙片 25a ' 42a、52a、 72a 缺口部 26 、 43 、 53 、 73 狹縫 27 ' 44 ' 54 > 55 ' 56 、 74 、 75 供給喷槍 ( 28 、 30 、 45 、 57 、 59 ' 76 返回喷搶 29 、 31 、 58 、 60 收縮閥 32 、 46 ' 63 唇部 61 、 62 、 77 匯流紋 100 液體塗布裝置 LI〜L18 導管 PI 特定壓力 k ' P2 活塞泵之最大壓力 W 寬度 L 長度 131450.doc -25-Figure 8 is an explanatory view of a slit nozzle of Embodiment 4 of the present invention. As in the second embodiment, the slit nozzle 50 is in contact with the mesh 22 which is moved by the rotation of the backup roller, and the mesh 22 is coated with a liquid. The slit nozzle 50 includes a lower block 51, an upper block (not shown), and a shim 52 sandwiched between the lower block 51 and the upper block (not shown). A manifold 51b is formed on the upper surface 51a of the lower block. The manifold 51b is a tubular groove extending in the longitudinal direction of the slit nozzle 5A. The lower block 51 is provided with three inlets 5ie, 51d, 51e. The inlet 51c is below The central portion of the block 51 is in communication with the manifold 5. The inlets 51d and 51e are respectively disposed on both sides of the inlet 51c. The inlet 5 is substantially at the center between the central inlet 51C and one end of the slit nozzle 5 The manifold 51b may be in communication with the manifold 51b. The inlet 51e may communicate with the manifold 51b at substantially the center between the center inlet 5ic and the other end of the slit nozzle. The lower block has two outlets 51f, 51g. The two outlets 51f, 51g are in communication with the manifold 51b at both ends of the slit nozzle %. 'The shim S2 is made of a thin plate and is provided with a width w and a length ^" 52a. The lower surface (not shown), the lower surface 5a upper surface 51a, and the gap portion S2a of the shim μ form a slit 53. The three supply sprays 54' 55, 56 are respectively mounted to the three inlets 5ic 131450.doc -19- 200914147 51d, 51e. Three supply sprays 54, 55, 56 are connected to the self-container L4 And the three conduits L12, L13, L14 of the branch. The three supply sprays 54, 55, 56 are connected to the pressure vessel 3 via respective conduits [η, L13, L14 and conduit L4] and return to the spray 57 to be installed at the outlet 51f. The return spray 57 is connected to the pipe L15. The return spray 57 is in communication with the liquid supply tank 1 via the pipe L15. A contraction valve (needle valve) is provided in the pipe L 1 5. The return spray 59 is attached to the outlet 51g. The return spray 59 is connected to the conduit L16. The return spray gun 59 is in communication with the liquid supply reservoir 1 via the conduit L16. The conduit L 16 is provided with a retraction valve (needle valve) 6 〇. The liquid return conduits L15 and L16 replace the Figure 1 The liquid return conduit is connected to the liquid supply tank 1. The liquid from the pressure vessel 3 is supplied to the liquid through the conduit [4, the conduits L12, L13, L14, the supply jets 54, 55, 56, the inlets 51c, 51d, 5 le Supply to the manifold 5 1 b. The liquid from the inlet 5 1 c flows toward the left and right sides, that is, in the directions indicated by the arrows G and Η, and is ejected from the lip to the mesh 22 through the slit 53 The liquid from the inlet 51d flows in the direction indicated by the arrow. The liquid from the inlet 51c merges with the liquid from the inlet 51d to form a bus bar 61. The liquid from the inlet 5 le flows in the direction indicated by the arrow j. The liquid from the inlet 51c merges with the liquid from the inlet 51e to form a bus bar 62. By using the slit nozzles of the second embodiment and the third embodiment, the generation of such a SiL pattern can be prevented. However, the slit nozzle 5 of Example 4 can be used in the article which can be used for such a bust pattern. 131450.doc • 20- 200914147 The slit nozzle 50 of the fourth embodiment supplies liquid to the manifold 51bf from three places in the central portion of the slit nozzle 5, and liquid is supplied from both ends of the slit nozzle 5 The manifold 51b is discharged. The retracting valves (needle valves) 58 and 6 下游, which are provided downstream of the returning lances 57, 59, respectively, adjust the amount of return of the liquid. Thereby, the discharge pressure of the slit 53 can be balanced to the left and right. [Example 5] Example 5 was applied to the liquid application apparatus 1 of Example i using a slit spray. ^ 70 replaces the spray nozzle 1 〇. The liquid application device of the portion other than the slit nozzle 7 of the fifth embodiment is the same as the liquid application device i of the embodiment i, and thus the description thereof is omitted. Fig. 9 is an explanatory view showing a slit nozzle of a fifth embodiment of the present invention. As in the second embodiment, the slit nozzle 70 is in contact with the web 22' which is moved by the rotation of the backup roller 21, and the liquid is applied to the web 22. The slit nozzle 70 includes a lower block 71, an upper block (not shown), and a shim piece 7 2 sandwiched between the lower block 71 and the upper block (not shown). A manifold 71b is formed on the upper surface 71a of the lower block 7丨. The manifold 7ib is a tubular groove extending along the longitudinal direction of the slit nozzle 70. The lower block 71 is provided with two inlets 71c, 71d, and the two inlets 71c, 71d are respectively connected to the manifold 71b at both ends of the slit nozzle 7 Connected. The lower block 71 is provided with an outlet 71e which communicates with the manifold 71 at substantially the center of the slit nozzle 7'. The shim 72 is made of a thin plate and is provided with a notch portion 72a having a width w and a length l. The slit 73 is formed by the lower surface (not shown) of the upper block, the upper surface 71a of the lower block, and the notch portion 72a of the shim 72. 131450.doc -21 - 200914147 Two supply sprays 74, 7 β丨 + 75 knife women's clothing at two entrances 71 c, 7id. A supply. The sprays 74, 75 are respectively connected to the two conduits LI:, L18 branched from the conduit L4. The two supply jets 74, 75 are in communication with the pressure vessel 3 via respective conduits L1/, L18 and conduit L4. Return to the spray know 76 An | at the exit 710. The return spray is connected to the conduit. The sprayback 76 is connected to the liquid supply reservoir via the conduit [5]. From the pressure vessel 3, the liquid is supplied to the spray gun 74 75 and the person D 71 via the conduit £4, the conduits u7, Li8. 7Η and supply to both ends of the manifold. The liquid flows from both end portions of the manifold 71b to the central portion of the manifold, and is ejected from the lip portion 78 to the mesh 22 through the slit 73. The liquid from the inlets 71c and 7ld at both end portions of the slit nozzle 7 is converged at a substantially central portion of the slit nozzle 7A to form a bus bar 7 7 . The slit nozzles 7 of the fifth embodiment feed the liquid to the manifold 71b at both end portions of the slit nozzles 7, and discharge the liquid from the manifold 71b at substantially the center portion of the slit nozzles 7. In the fourth embodiment and the fifth embodiment, the flow of the liquid from the plurality of inlets provided in the slit nozzles is converged to generate a bus bar. In order to prevent the formation of the bus bar, a coat-shaped liquid supply path may be provided in the nozzle block. However, in the case of the hanger-shaped liquid supply path, since the length from the manifold to the lip becomes long, the size of the slit nozzle is increased. According to the second embodiment and the third embodiment, even if the hanger-shaped liquid supply path is not provided, the generation of the bus bar can be prevented, so that the size of the slit nozzle can be reduced. The present invention is not limited to the above embodiments, and can be implemented in various other forms without departing from the features. Therefore, all aspects of the above-mentioned embodiments -22·131450.doc 200914147 are only for your 丨+& value, and are not limited by the scope of the patent application, and are not described: the scope of the present invention is further 'Belong to the scope of the patent application; any restrictions in the text. It is within the scope of the invention. Modifications or alterations in the drawings [Simplified description of the drawings] Fig. 1 is a view showing a liquid coating of an embodiment of the present invention. Fig. 2 is a view showing a piston pump. Figure 3 is a diagram showing the ejection cycle of the spray gun. Fig. 4 is a graph showing the relationship between the pump pressure and the ejection cycle of the squirting. Fig. 5 is an explanatory view showing a slit nozzle of a second embodiment of the present invention. Fig. 6 is a longitudinal sectional view showing a slit nozzle of a second embodiment of the present invention. Fig. 7 is an explanatory view showing a slit nozzle of a third embodiment of the present invention. Figure 8 is an explanatory view of a slit nozzle of Embodiment 4 of the present invention. Fig. 9 is an explanatory view showing a slit nozzle of a fifth embodiment of the present invention. [Main component symbol description] 1 Liquid supply tank 2 First pump (piston pump) 2a Poly cylinder 2b Piston 2c Inlet 2d Outlet 3 Pressure vessel 4 First spray gun 5 Turbulent diffuser (throttle) I31450.doc -23 - 200914147 5 a 6 7 8 9 10 11 12 13 14 15 16 , 17 20 ' 40 ' 50 ' 70 21 22 23 , 41 , 51 , 71 23a , 41a , 51a , 71a 23b , 41b , 51b , 71b 23c , 41c , 51c, 51d, 51e, 71c, 71d 23d, 23e, 41d, 51f, 51g, 71e Shrinking compressed air source with high sensitivity relief valve regulator solenoid valve level controller nozzle coated refill tank second pump Second spray grab three-way valve check valve slit nozzle support roller mesh lower block upper surface manifold inlet σ 131450.doc -24- 200914147 24 upper block 24a lower surface 25, 42 , 52 , 72 shims 25a '42a, 52a, 72a Notch 26, 43, 53, 73 Slit 27 ' 44 ' 54 > 55 ' 56 , 74 , 75 Supply gun ( 28 , 30 , 45 , 57 , 59 ' 76 Back to spray 29, 31, 58 , 60 Shrink valves 32 , 46 ' 63 Lips 61 , 62 , 77 sink Pattern coating apparatus LI~L18 liquid conduit 100 specific pressure PI k 'the maximum pressure P2 of the pump piston length L a width W 131450.doc -25-