1298651 九、發明說明： 【發明所屬之技術領域】 本發明係關於用作為屋頂材料及牆壁材料等的建材的 塗裝板的製造方法，尤其是製造多色彩且具有高新穎性的 塗裝板時所利用的方法。 【先前技術】 以往，藉由喷射塗佈將二色以上的塗料塗裝於以10 m/分以上的速度移動的帶狀被塗裝物上，用以形成多彩 花紋的塗膜（例如，參照專利文獻1 )。在專利文獻1所記 載的塗裝方法中，至少從二個以上的塗料吐出喷嘴射出至 少為二色以上的不同塗料顏色的塗料’猎此’使從各塗料 吐出喷嘴吐出的塗料混合形成多色喷射圖案。 但是，在上述塗裝方法中，若被塗裝物的表面顏色和 喷射塗裝的塗料顏色的色調差相對較大時，被塗裝物的表 面和喷射塗裝的塗料的境界尤其突顯，要塗裝形成色調缓 缓變化的花紋、例如、類似窯變調（y〇 hen sty 1 e )的西洋風瓦片（m ο n i e r瓦）的花紋，較為困 難。 (專利文獻1)曰本專利特開第2 0 0 3 — 1 3 5 9 9 8號公報。 【發明内容】 (發明所欲解決之問題） 本發明是鑒於上述課題而完成者，其目的在於，提供 一種可容易形成色調缓缓變化的花紋之塗裝板的製造法。 1298651 (解決問題之手段） 本發明係使用於將襯底塗料1塗佈於金屬基板2的表 面’在該金屬基板2的襯底塗料1的塗佈面，藉由噴射器 塗佈複數顏色的精塗塗料3的塗裝板的製造方法。因此， 本發明之特徵為：以與襯底塗料1同色的精塗塗料3 aA 與襯底塗料1不同色的精塗塗料3b、3 c局部重疊的方 式’將此等精塗塗料3 a、3 b、3 c塗佈於上述金屬夷 板2的襯底塗料1的塗佈面。 根據本發明，以與襯底塗料1同色的精塗塗料3 a及 與襯底塗料1不同色的精塗塗料3 b、3 c相互重疊的方 式進行塗佈，可形成讓與襯底塗料1同色的精塗塗料3 a 及與襯底塗料1不同色的精塗塗料3 b、3 c混合的部 分。豬由混合該精塗塗料3 a、3 b、3 c的部分，則在 與襯底塗料1不同色的精塗塗料3 b、3 c和襯底塗料1 的境界處，變得不易突顯，從而可容㈣成色調緩緩化 的花紋。 又，本發明中，最好藉由稀釋襯底塗料丄，以調製與 襯底塗料1同色的精塗塗料3 a。該情況，利用襯底=料 1即可調製與其同色的精塗塗料3 a，可減低精塗塗 a的調製時間，同時，可減少襯底塗料丄與精塗塗 的色差的產生。〆 a 另外，本發明中，最好從複數顏色的精塗塗料3經# 性切換應欲噴射之精塗塗料，藉由喷搶4將該切換後的;吊 塗塗料喷射於上述金屬板2。該情況，在塗佈複數顏色^ 1298651 可減少噴 精塗塗料3的過程’可兼用一把喷搶4,與使用對應複數 顏色的精塗塗料3的各者的噴搶4的情況比較， 槍4的數量。 又 ’本發明巾，最好將襯缝料及與其同色的精塗塗 料的顏色料練色，同時，將與襯底練不同色的精塗 塗枓的顏色設為雜色，而作絲m兄，可容易塗 裝形成類似窯變調的西洋風瓦片（mQ n i e = 相及花紋。 已 (發明之效果） 本發明藉由讓與襯底塗制色的精塗塗料及與概底余 料不同色的精塗塗料重疊的方式進行塗佈，可形成讓與ς 底塗料同色的精塗塗料及與襯底塗料不同色的精塗塗料混 S的邛为。藉由混合該精塗塗料的部分，則在與襯底塗料 不同色的精塗塗料和襯底塗料的境界處，變得不易突顯， 從而可容易形成色調緩緩變化的花紋。 ’' 【實施方式】 圖一顯不本發明之一例。在該例中，邊讓較長之金屬 基板2沿長度方向行進（搬運）邊進行襯底塗料1與精塗 塗料3的塗佈（塗裝）。 金屬基板2很久以來即用於建材之形成，例如，可例 舉不鏽鋼板、鍍鋅鋼板、鋁一鋅電鍍鋼板（電鍍鋼板）等， 4 ϋ不侷限於此。又，在該金屬板2的表面可以底塗（ρ rimer)塗裝施以底層塗裝。 襯底塗料1很久以來即用於建材等，是為了賦予金屬 1298651 基板2以而ί腐餘、而+ 為如此之襯底塗料，t 耗的性能而塗裝者。作 脂塗料、1乙㈣早獨使用聚®旨樹脂塗料、尿烧樹 2 樹脂塗料、丙烯樹脂塗料、聚烯等或混 另外，襯底塗料1内配合有顏料，藉此， 襯底塗料1係著色為所〜海洛w m十猎此 己马所的顏色。該顏料可例示各種的著 ，顏料、防鏽顏料、體質顏料（二氧切、氧化链、魏 、巧石瓜I鋇网嶺土滑石粉等），但並不侷限於此等。顏料 I考慮著色性或與塗裳中的樹脂的密接性的提升、襯底的 隱蔽，等進行配合。又，襯底塗料i可使關如日本專利 特開第2 ◦ 0 2 - 1 4 6 2 8 0號公報所揭示的縮性塗料 (具有收縮性的塗料且具有消除艷麗的效果的塗料）。 作為消艷劑或防止受傷的防止劑或提升接合（固定效 果）的目的，可於襯底塗料丄配合骨材。骨材可例示玻璃 、、栽維、玻璃珠、樹脂珠、雲母等，但並不限於此等。又， 還可於襯底塗料1配合合成微粉二氧化矽、有機膨潤土、 羧曱纖維素、聚乙烯醇等的增黏劑、三聚氰胺系或苯併二 氨基二嗪系或異氰酸酯系等的交聯劑、聚丙烯酸等的分散 劑等。又，本發明中，襯底塗料1的黏度，例如以福特杯 N 〇 · 4法所測定且為3 〇〜1 2 0秒者為較佳，但並不 限於此。 、精塗塗料3可使用與襯底塗料1相同者。亦即，襯底 塗料1與上述相同，可使用於聚酯樹脂塗料等的各種樹脂 塗料配合有顏料、骨材及其他成分者。另外，精塗塗料3 係使用顏色各異的複數顏色的精塗塗料3 a、3 b、3 c。 1298651 在此’說明使用顏色各昱的— 3,況，但並不限;::：==，、 的二種類，或顏色各異的四種類以^ ^、、、顏色各異 複數顏色的精塗塗料3 a、3 h、、q ’顏色各異的 -種類的精錄料3 3與_ ^ ’分別調製成為 其他精塗塗料3b、3 c鱼色，另外，剩餘的 與襯底塗料i同色的精栋 =μ況， rr行著色，底::==[Technical Field] The present invention relates to a method of manufacturing a coated board which is used as a building material for a roofing material, a wall material, or the like, particularly when a multi-color and highly novel coated board is manufactured. The method used. [Prior Art] Conventionally, a coating material of two or more colors is applied to a belt-shaped object to be coated at a speed of 10 m/min or more by spray coating to form a coating film of a colorful pattern (for example, reference) Patent Document 1). In the coating method described in Patent Document 1, at least two or more paint discharge nozzles emit a paint having a different paint color of at least two colors or more, and the paint discharged from each paint discharge nozzle is mixed to form a multicolor. Spray pattern. However, in the above coating method, if the difference in hue between the surface color of the object to be coated and the color of the spray-coated paint is relatively large, the surface of the object to be coated and the boundary of the spray-coated paint are particularly prominent, It is difficult to apply a pattern in which the color tone changes slowly, for example, a pattern of a western wind tile (m ο nier tile) similar to a kiln tone change (y〇hen sty 1 e ). (Patent Document 1) Japanese Patent Laid-Open No. 2 0 0 3 - 1 3 5 9 9 8. DISCLOSURE OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION The present invention has been made in view of the above problems, and an object of the invention is to provide a method for producing a coated sheet which can easily form a pattern in which a color tone is gradually changed. 1298651 (Means for Solving the Problem) The present invention is applied to apply the substrate coating material 1 to the surface of the metal substrate 2 on the coated surface of the substrate coating material 1 of the metal substrate 2, and coating a plurality of colors by an ejector A method of producing a coated plate of the fine coating material 3. Therefore, the present invention is characterized in that: the fine coating material 3 aA of the same color as the substrate coating material 1 and the surface coating material 1 are partially overlapped with the fine coating materials 3b, 3 c of different colors, 3 b, 3 c are applied to the coated surface of the substrate coating 1 of the above-mentioned metal plate 2. According to the present invention, the fine coating material 3 a of the same color as the substrate coating 1 and the fine coating materials 3 b and 3 c of the different colors of the substrate coating 1 are applied to each other to form a transfer coating material 1 A portion of the same color of the fine coating 3 a and the fine coatings 3 b, 3 c of the different colors of the substrate coating 1 . The portion of the pig which is mixed with the fine coatings 3 a, 3 b, and 3 c becomes less noticeable at the boundary of the fine coating materials 3 b, 3 c and the substrate coating 1 which are different in color from the substrate coating 1 . Therefore, it is possible to accommodate (4) a pattern in which the color tone is gradually reduced. Further, in the present invention, it is preferable to prepare a fine coating material 3 a of the same color as the substrate coating 1 by diluting the substrate coating crucible. In this case, the fine coating material 3 a of the same color can be prepared by using the substrate = material 1, which can reduce the preparation time of the fine coating, and at the same time, can reduce the occurrence of chromatic aberration between the substrate coating and the finish coating. In addition, in the present invention, it is preferable to switch the fine coating material to be sprayed from the plurality of colors of the fine coating material 3, and to spray the coating material onto the metal plate 2 by spraying 4 . In this case, the process of coating the plurality of colors ^ 1298651 can reduce the process of spraying the varnish coating 3 'can be used together with a squirting 4, compared with the case of using the squirting 4 of each of the fine coatings 3 corresponding to the plurality of colors, the gun The number of 4. Moreover, the towel of the present invention preferably has a color material of the lining material and the same color paint of the same color, and at the same time, the color of the lacquer coating which is different from the color of the substrate is set to variegated color, and the silk m brother It can be easily painted to form a western-style tile similar to the kiln tone change (mQ nie = phase and pattern. The effect of the invention) The present invention is different from the base material by the color coating of the substrate. The color-finished coating is applied in an overlapping manner to form a fine coating of the same color as the primer and a fine coating of a different color from the substrate coating. By mixing the portion of the coating In the boundary between the fine coating material and the substrate coating which are different in color from the substrate coating, it becomes difficult to be highlighted, so that a pattern in which the color tone gradually changes can be easily formed. ''Embodiment> FIG. 1 shows the invention. In this example, the coating (coating) of the base coating material 1 and the fine coating material 3 is performed while the long metal substrate 2 is advanced (transported) in the longitudinal direction. The metal substrate 2 has been used for building materials for a long time. Forming, for example, a stainless steel plate, galvanized Steel plate, aluminum-zinc plated steel plate (plated steel plate), etc., 4 ϋ is not limited thereto. Further, the surface of the metal plate 2 may be primed (p rimer) coated with a primer coating. That is, it is used for building materials, etc., in order to give the metal 1 129 651 substrate 2 and the rot, and + is such a substrate coating, and the paint is used for the performance of t. For the grease coating, 1 B (4) Resin coating, urinary tree 2 resin coating, acrylic resin coating, polyene, etc., or mixed, the base coating 1 is blended with a pigment, whereby the substrate coating 1 is colored to be a hero. The color can be exemplified by various pigments, rust-preventive pigments, and extender pigments (dioxane, oxidized chain, Wei, Qiaoshi melon, 钡 岭 岭 talcum powder, etc.), but it is not limited to these. The pigment I is blended in consideration of coloring property or adhesion to the resin in the coating, concealing of the substrate, etc. Further, the substrate coating i can be closed as disclosed in Japanese Patent Laid-Open No. 2 ◦ 0 2 - 1 4 Shrinkage coatings disclosed in the publication No. 6 2 80 (having a shrinkable coating and having a smear The effect of the coating). As a deodorant or anti-injury prevention agent or lifting joint (fixing effect), the base material can be used in combination with the aggregate. The aggregate can be exemplified by glass, planting, glass beads, resin. Beads, mica, etc., but not limited to this. In addition, it can also be used in the base coating 1 with synthetic tackifiers such as cerium oxide, organic bentonite, carboxycellulose, polyvinyl alcohol, melamine or benzo. A crosslinking agent such as a diaminodiazine system or an isocyanate group, a dispersing agent such as polyacrylic acid, etc. Further, in the present invention, the viscosity of the substrate coating material 1 is, for example, measured by the Ford Cup N 〇 4 method and is 3 〇. Preferably, the coating material 3 can be the same as the substrate coating material 1. That is, the substrate coating material 1 can be used for the polyester resin coating, etc., in the same manner as described above. A variety of resin coatings with pigments, aggregates and other ingredients. In addition, the fine coating 3 uses a plurality of fine paints 3 a, 3 b, 3 c of different colors. 1298651 Here's a description of the use of colors - 3, but not limited to; :::==, two types, or four different colors with ^ ^, ,, and colors of different colors The fine coating material 3 a, 3 h, q 'different color - type of fine recording material 3 3 and _ ^ ' are separately prepared into other fine coating materials 3b, 3 c fish color, in addition, the remaining and substrate coating i the same color of the fine building = μ condition, rr line coloring, bottom::==
b、3 c，可使用與襯底塗料 、月土土科J 外，與襯底塗料1同色的精塗塗料；a :、最色。另 無色溶劑稀釋襯底塗料工進行取好猎由適宜的 料!調製與襯底塗料丄同色的:=’可:用襯底塗 襯底塗料1和精塗塗料3 " a 14刀別5周製 間’同時不易產生襯底塗料 二 涂料Ί =衣’因此’以直接轉用襯底塗料1且較精塗 二釋而使黏度降低者為較佳。本發明中，於 a的黏度，例如以福特杯N〇 4法 二b, 3 c, can be used with the substrate coating, the moon and soil, and the same color coating as the substrate coating 1; a:, the most color. Another colorless solvent diluted substrate coating worker to take the hunt from the appropriate material! Modulation and substrate coating 丄 the same color: = ' can: coated with substrate coating 1 and fine coating 3 " a 14 knife 5 In the weektime process, it is not easy to produce a substrate coating, two coatings, and it is preferable to use the substrate coating 1 directly and to reduce the viscosity to reduce the viscosity. In the present invention, the viscosity of a, for example, the Ford Cup N〇 4 method
5 4 0 〇 )所測定曰么q ( K 於此。 、’、、、 5秒者為較佳，但並不限 設置Grr發明所使㈣塗餘置中，於塗裝室1〇 泵14所:认:，4 1搶4係可使用例如、利用從氣 (―根）配官lla、llb、llc的一端， 1298651 ^产^1 1 a、1 1 b、1 1 c的另—端係連接於分 料有精塗塗料3 a、3b、3 c的塗料 2 C。另外，在上述各配管1 χ a、丄i b、丄 2 b 中途設有電磁閥⑽閥13a、i3b、i3c。 制壯二1 3 a、1 3b、1 3 c係藉由電腦等所構成的控 衣置1 6進行開閉控制。另外，在較閥丄3 a、丄3、、 上？上游侧(塗料箱12a、12七、12。側)，在 g 1 1 a、1 1b、1 1 c的中途設有泵工5 a、工 、5 b、1 5 c。又，塗裝裝置上具備有輥塗器丄7及烘烤 爐1 8 〇 在使用如上述的塗裝裝置連讀性地於長帶狀金屬基板 2上施以塗裝的過程中，依如下方式進行。首先，邊垂直 向上搬運（行進）金屬基板2邊藉由輥塗器17於金屬基 板2的表面（單面）塗佈襯底塗料1。其次，以槪底塗料 1的塗農面朝上略水平搬送金屬基板2的方式，由搬運親 2 0改變金屬基板2的搬運方向。然後，邊略水平搬運金 屬基板2邊使其通過塗裝室1〇，在從喷搶4嘴射而以喷 射將精塗塗料3塗佈於金屬基板2的襯底塗料i的涂裝面 上。依精塗塗料3的喷射所塗佈的圖案，俯視為圓形或擴 圓形等。其後，將金屬基板2導入烘烤爐1 8以烘烤塗^ 於金屬基板2的襯底塗料1及精塗塗料3。如此般進行之 後，即可於金屬基板2塗裝襯底塗料1及精塗塗料3。又， 形成於金屬基板2的襯底塗料1或精塗塗料3的塗膜，最 好為10〜30//m，但並不限於此。另外，精塗塗料3 1298651 的噴射條件可設為，霧化壓力為0 . 1〜Q. 3MP a， 圖案屢力為Q .卜^ . 3MPa，吐出量為ι〇〇〜5 Ο 0m1/分等’但並不限於此等。χ，還可設為線速度 (金屬基板2的搬運速度）為3 〇〜1 2 0 m/分，烘烤 爐1 8的供烤溫度為丄8 〇〜2 5 〇，供烤時間為2、〇 〜1 ο 〇秒等，但並不限於此等。 本發明中，如上述般，在由喷射器塗佈精塗塗料3的 ，程，係設定為根據設定於控制裝置i 6的時間排程，經 常順序切換從喷搶4所喷射的精塗塗料3 a、3 b、3 c 的種類。例如，在從喷槍4喷射精塗塗料3 a的情況，由 控制裝置1 6控制以打開作動閥1 3 a，且作動關閉其他 勺閥1 3 b、1 3 c，利用果1 5 a的作用從塗料箱1 2 a通過配管1 1 a將精塗塗料3 a供給噴搶4。藉此，利 用氣泵1 4的作用可從喷槍4喷射精塗塗料3 a。另外， 從噴搶4喷射精塗塗料3 b的情況也可與上述相同進行。 亦即，由控制裝置1 6控制以打開作動閥1 3 b，且作動 關閉其他的閥13 a、1 3 c，利用泵1 5 b的作用從塗 料箱1 2 b通過配管1 1b將精塗塗料3 b供給噴搶4， 利用氣泵1 4以便從喷搶4噴射精塗塗料3 b。另外，從 嘴搶4喷射精塗塗料3 c的情況也可與上述相同進行。亦 即，由控制裝置1 6控制以打開作動閥1 3 c，且作動關 閉其他的閥1 3 a、1 3b，利用泵1 5 c的作用從塗料 箱1 2 c通過配管1 1 c將精塗塗料3 c供給噴搶4後， 利用氣泵1 4的作用可從喷槍4喷射精塗塗料3 c。 11 1298651 另外，本發明中，在藉由喑 精塗塗料3的複數顏色的精塗佈顏色不同的^為 係將與襯底塗料1同色的精塗冷祖Q 3 c ， 色的精塗塗料此鄰接的不同 底塗料二，的精塗塗料3，及不同::精塗=3:襯 3 C的重豐比例，係可適宜設定，與概底塗』 塗塗料3 a及與此鄰接的不同色的精塗塗^3月 ==_算（精塗塗料3a〜3c_互重疊的_ 比例)為重豐5〜5 0%。以形成如此部 : 調整精塗f 3卜3㈣每—次的噴射量等的噴射條件 或線速料。織，如圖二所示，在上述·塗料3 a〜 3 c的重宜#刀30’可形成如斑紋般混合與襯底塗料工 同色的精塗塗料3 a，及與襯底塗料i不同色的精塗塗料 3 b、3 c的部分。藉由該混合，襯底塗料工與不同色的 精塗塗料3 b、3 c的境界處’變得不易突顯，從而可容 易由精塗塗料3 a〜3 c形成色調緩緩變化的花紋。 如上述般所製造的塗裝板，係通過施以輥成形等的彎 曲加工或切fe/f為指疋的大小而形成為金屬屋頂材料或金屬 牆壁材料的建材。圖三所示建材係形成為略波狀的橫鋪屋 頂材料2 1，分別其上端形成有表面側彎曲形成的嵌合凸 部2 2，下端形成有背面侧彎曲形成的散合凹部2 3。然 後，該橫鋪屋頂材料2 1即便為金屬屋頂材料，仍可呈現 類似窯變調的西洋風瓦片（m ο n i e r瓦）的外觀。 本發明中，如上述，雖可使用只有一把噴搶4的塗裝 12 丄298651 裝置，但如 ^ 置亦可=圖四所示，即使使用具備二把喷槍4的塗裝裴 有增加情況，與使用一把喷搶4的塗裝裝置比較，雖 為^^噴搶4的數量而使裝置大型化的擔憂，但卻有可更 用精塗以:塗佈的優點。又’圖四所示裝置中，雖使 相同， J b、3 c的二種類，但並不限於此，與上述 另外，也可為二種類或其以上的複數顏色的精塗塗料3。 在圖四之塗裝裝置中，係將喷槍4排列成與金屬基 所示運方向大致平行的方向，但並不限於此，如圖五 技t百於也可將魏4排列成與金屬基板2的搬運方尚（由 則，示）大致垂直的方向。 〔實施例〕 以下’依實施例具體說明本發明。 ?圖—所示塗裝襞置製•塗裝板。作為金廣I板 乙 使用寶Q Ί / 、、、 m m ’厚度0 · 3 5 m m的長鋼板。 本油脂1係使用將顏料配合於聚酯系樹脂蜜料（曰 G 4 6 5 S F '〇 a t i n g S (股）製「S 〇 3 一 料1的點度」(2上二'色為淺橙色的色相者。另外，襯底， 、、目，丨贪日％ n U C)係為使用福特杯N 〇 . 4的黏度所 /貝J疋且為6 Q秒者。 酮及ί 5 3料1同色的精塗塗料3 a，係為由環己 精塗塗劑稀釋概底塗料1而成暑。該 作為兵觀底塗料1不同色的精塗塗料3b，係使用將 13 1298651 與=相_聚_旨塗料上而著色為深撥 涂’错由配合與上述相同的溶劑，該精塗 言科d a的黏度（2 〇。〇存 度所測定且為3◦秒者。特杯NQ.4的黏 作為與M底塗料i不同色的精塗塗料 顏料配合於與上述相同的聚醋系樹脂塗料】二= 的色相者。另外，藉由配合與上述相同的L而者色為原色 料&的黏度(2『C)係為使 所測定且為3Q秒者。 細特杯Ν。.3的黏度 概底=ΓΧ線速度6 5 m/分邊搬運金屬基板2邊進行 飛底塗及精塗塗料3 a、3b ^攻進灯 噴射條件係設為霧化壓力為Q. 2QMp的轉。在此， 吐出量為2 9 0二=^ =置之嘴射圖案係將精塗塗料3二 〇 10秒無噴射—將精塗塗 15 fy — 以秒無喷射-將精塗塗料二射^ 8秒無噴射—將精塗塗料3 3噴射(） 0 ·= 進仃。圖六顯示各精塗塗料3 a =〜.·. ’重後 無噴射（off)的重複圖案。如此般的:射（0N)及 色的精塗塗料3 a及不同色的 料C料1同 成局部重晶广品拉瞀丸9 nn f ^ b ' 3 c，形 丨，(面積換异為20%)。又，嘴 衣後的金屬基板2導入烘烤焯Ί 〇、烤5〇秒，獲得襯底塗料心 14 1298651 m ’精塗塗料3 a〜3 c的塗膜厚度為^ q 裝板。其後，藉由輥成形等彎曲加工塗裝 、主 =的長度而形成橫鋪屋頂材料2丄。該“ 匕丄係具有色調緩緩變化的花紋者（參照附件一）。 【圖式簡單說明】 ，一圖為顯示本發明之實施形態的一例的概略圖。 第一圖為顯示同上的塗裝狀態的概略圖。 ^三圖為顯示同上的建材的一例的立體圖。 々固為頒示同上的另一實施形態的一例的概略圖。 λτ/f 丁 圖為顯示同上的另一實施形態的一例，為喷槍的配置 的概略圖。 第/、圖為顯不同上的噴搶的喷射的重複圖案的一例的說明 圖。 附件—為顯示同上的建材的一例的照片的複印圖。 【主要元件符號說明】 1 襯底塗料 金屬基板 3 精塗塗料 3 a、q l 。 4 噴搶 1 〇塗裝室5 4 0 〇) measured q (K is here., ',,, 5 seconds is better, but not limited to the Grr invention (4) coating remaining, in the painting room 1 pump 14 :: Recognize: 4 1 grab 4 series can use, for example, the end of the gas (-root) with the official lla, llb, llc, 1298651 ^ production ^ 1 1 a, 1 1 b, 1 1 c other end It is connected to the coating material 2 C in which the fine coating materials 3 a, 3b, and 3 c are dispensed. Further, solenoid valves (10) valves 13a, i3b, and i3c are provided in the middle of the respective pipes 1 χ a, 丄 ib, and 丄 2 b. The system 2, 1 3 a, 1 3b, and 1 3 c are opened and closed by a control device set by a computer, etc. In addition, on the upstream side of the valve 丄 3 a, 丄 3, and 12a, 127, 12. Side), in the middle of g 1 1 a, 1 1b, 1 1 c, there are pump workers 5 a, work, 5 b, 15 c. Also, the coating device is provided with roller coating In the process of applying the coating on the long strip-shaped metal substrate 2 by using the coating device as described above, the process is carried out as follows. First, it is carried vertically upwards ( Traveling) the surface of the metal substrate 2 on the metal substrate 2 by the roll coater 17 The surface coating (single-sided) is coated with the substrate coating material 1. Secondly, the metal substrate 2 is conveyed horizontally upward by the coating surface of the primer coating material 1, and the conveying direction of the metal substrate 2 is changed by the conveying member 0. The metal substrate 2 is conveyed slightly horizontally and passed through the coating chamber 1A, and the fine coating material 3 is applied onto the coating surface of the substrate coating material i of the metal substrate 2 by spraying from the nozzle. The pattern applied by the spraying of the coating material 3 is circular or expanded in a plan view, etc. Thereafter, the metal substrate 2 is introduced into the baking furnace 18 to bake the substrate coating 1 and the fine coating on the metal substrate 2. After the coating material 3 is applied, the substrate coating 1 and the fine coating material 3 can be applied to the metal substrate 2. Further, it is preferably formed on the coating material of the substrate coating 1 or the fine coating material 3 of the metal substrate 2. 10〜30//m, but not limited to this. In addition, the spray condition of the fine coating material 3 1298651 can be set to, the atomization pressure is 0. 1~Q. 3MP a, the pattern repeat force is Q. 3 MPa, the discharge amount is ι〇〇~5 Ο 0m1/minute, etc. 'But it is not limited to this. χ, the linear velocity (transport speed of the metal substrate 2) can be set to 3 〇 1 2 0 m / min, the baking temperature of the baking oven 18 is 丄8 〇~2 5 〇, and the baking time is 2, 〇~1 ο 〇 sec, etc., but is not limited thereto. In the present invention, As described above, the process of applying the fine coating material 3 by the ejector is set to sequentially switch the fine coating materials 3 a, 3 sprayed from the blasting 4 according to the time schedule set to the control device i 6 . b, 3 c. For example, in the case where the fine coating material 3 a is sprayed from the spray gun 4, it is controlled by the control device 16 to open the actuating valve 13 a, and the other spoon valves 1 3 b, 1 3 c are actuated to close. The fine coating material 3 a is supplied to the spray blasting 4 from the paint box 1 2 a through the pipe 1 1 a by the action of the fruit 1 5 a. Thereby, the fine coating material 3a can be sprayed from the spray gun 4 by the action of the air pump 14. Further, the case where the fine coating material 3b is sprayed from the spray 4 can be carried out in the same manner as described above. That is, it is controlled by the control device 16 to open the actuating valve 13 b, and the other valves 13 a, 1 3 c are actuated to be closed, and the coating 1 b b is used to pass the coating from the paint box 1 2 b through the pipe 1 1b. The coating 3b is supplied to the spray 4, and the air pump 14 is used to spray the fine coating 3b from the spray. Further, the case where the fine coating material 3 c is sprayed from the nozzle 4 can be carried out in the same manner as described above. That is, it is controlled by the control device 16 to open the actuating valve 13 c, and the other valves 1 3 a and 1 3b are actuated to be closed, and the pump 1 2 c is used to pass the pipe 1 1 c through the pipe 1 1 c. After the coating material 3 c is supplied to the spray gun 4, the fine coating material 3 c can be sprayed from the spray gun 4 by the action of the air pump 14. 11 1298651 In addition, in the present invention, the fine coating color of the plurality of colors by the fine coating of the enamel coating material 3 is a fine coating of the same color as the substrate coating 1 and a fine coating of the color. This adjacent different primer 2, the fine coating 3, and the difference:: fine coating = 3: the proportion of the lining 3 C, can be set appropriately, and the basic coating 涂 coating 3 a and adjacent Different colors of fine coating ^ 3 months = = _ calculation (fine coating 3a ~ 3c_ overlap _ ratio) for heavy 5 ~ 50%. In order to form such a portion: the injection condition or the line-rate material such as the amount of injection of the fine coating f 3 3 (4) per injection is adjusted. Weaving, as shown in Fig. 2, in the above-mentioned paint 3 a~3 c, the heavy-duty #刀30' can form a fine-coating paint 3 a with the same color as the substrate coating, and different from the substrate coating i The part of the color finish coating 3 b, 3 c. By this mixing, the boundary between the substrate coater and the different colors of the fine coating materials 3b, 3c becomes less noticeable, so that the pattern of the color tone gradually changing can be easily formed by the fine coating materials 3a to 3c. The coated board produced as described above is formed into a metal roofing material or a metal wall material by bending processing such as roll forming or by cutting the size of the finger/f. The building materials shown in Fig. 3 are formed into a slightly corrugated horizontal roofing material 2 1, respectively, on the upper end thereof, a fitting convex portion 22 formed by bending a front side, and a lower concave end forming a concave concave portion 23 formed by bending the back side. Then, the tiling material 21, even if it is a metal roofing material, can exhibit the appearance of a kiln-like western-style tile (m ο n i e 瓦). In the present invention, as described above, although it is possible to use a coating 12 丄 298651 device which has only one spray 4, it can also be as shown in Fig. 4, even if the coating with the two spray guns 4 is increased. In contrast, compared with the coating device using a sprayer 4, although the number of devices is increased by 4, the size of the device is increased, but there is an advantage that the coating can be further used: coating. Further, in the apparatus shown in Fig. 4, the two types of Jb and 3c are the same, but the invention is not limited thereto, and the above-mentioned two types of fine coating materials 3 of a plurality of colors may be used. In the painting apparatus of FIG. 4, the spray guns 4 are arranged in a direction substantially parallel to the direction indicated by the metal base, but it is not limited thereto, and the Wei 4 may be arranged in the same manner as the metal. The substrate 2 is transported (indicated by the display) in a substantially vertical direction. [Examples] Hereinafter, the present invention will be specifically described by way of examples. ? Figure - shows the coating system and the coated plate. As a gold-plated I plate B, use a long steel plate with a thickness of 0 · 3 5 m m of Bao Q Ί / , , , m m '. This grease 1 is made by blending a pigment with a polyester resin ("G 6 4 4 4 〇 S ( 制 制 制 」 」 」 」 」 」 」 」 」 」 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( In addition, the substrate, 、, mesh, % 日 % % 使用 使用 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特 福特The same color of the fine coating 3 a, is diluted by the cyclohexine coating agent, the base paint 1 became a heat. As a soldier's bottom coating 1 different color of the fine coating 3b, the use of 13 1298651 and = phase _ The color of the coating is deep-drawing and the same solvent as above is used. The viscosity of the fine coating is 2 〇. The degree of enthalpy is measured and is 3 ◦ second. Special cup NQ.4 The viscosity is the same as the above-mentioned polyester paint of the same type as the above-mentioned polyester paint of the same color as the above-mentioned L. In addition, the same color as the above is used as the original color & The viscosity (2 "C) is the one measured for 3Q seconds. The thin cup Ν..3 viscosity base = ΓΧ line speed 6 5 m / 边 while carrying the metal substrate 2 for the primer and The coating material 3 a, 3b ^ attack lamp spraying condition is set to the atomization pressure of Q. 2QMp. Here, the discharge amount is 2 9 0 2 = ^ = the mouth spray pattern will be fine coating 3 2 〇10 seconds without spray—coating 15 fy—without jets in seconds—spray the finish paint for 2 seconds without jetting—spray the paint 3 3 () 0 ·= enter. Figure 6 shows the fine Paint 3 a = ~.. 'Repetitive pattern after no-spray (off). So: (0N) and color fine coating 3 a and different color material C 1 together with local recrystal广品拉瞀丸9 nn f ^ b ' 3 c, shape 丨, (area change is 20%). Also, the metal substrate 2 behind the mouthpiece is baked, baked, baked for 5 sec seconds, and the substrate is obtained. Coating core 14 1298651 m 'The coating thickness of the fine coatings 3 a to 3 c is q 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. "The enamel has a pattern in which the color tone changes slowly (refer to Appendix 1). [Brief Description] FIG. 1 is a schematic view showing an example of an embodiment of the present invention. Fig. 3 is a perspective view showing an example of the same building material. The tamping is a schematic diagram showing an example of another embodiment of the same. The λτ/f diagram is an example showing another embodiment of the above. Fig. 3 is an explanatory view showing an example of a repeating pattern of jets that are different in jetting. Attachment is a copy of a photograph showing an example of the same building material. DESCRIPTION OF SYMBOLS 1 Substrate coating metal substrate 3 Fine coating 3 a, ql. 4 spray grab 1 〇 painting room
d b ' 3 c 精塗塗料 1 C 配管 2 c 塗料箱 15 1298651 13a、13b、13c 電磁閥等的閥 1 4 氣泵 1 5 a、1 5 b、1 5 c 泵 16 控制裝置 1 7 輥塗器 18 烘烤爐 2 0 搬運輥 21 橫鋪屋頂材料 22 嵌合凸部 2 3 嵌合凹部 16Db ' 3 c fine coating 1 C piping 2 c coating tank 15 1298651 13a, 13b, 13c valve for solenoid valve, etc. 1 4 air pump 1 5 a, 1 5 b, 1 5 c pump 16 control device 1 7 roller applicator 18 Baking furnace 2 0 conveying roller 21 tiling material 22 fitting convex portion 2 3 fitting concave portion 16