JPS6369575A - 4-coat painting method - Google Patents
4-coat painting methodInfo
- Publication number
- JPS6369575A JPS6369575A JP21244186A JP21244186A JPS6369575A JP S6369575 A JPS6369575 A JP S6369575A JP 21244186 A JP21244186 A JP 21244186A JP 21244186 A JP21244186 A JP 21244186A JP S6369575 A JPS6369575 A JP S6369575A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- coat
- coating
- painting method
- translucent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010422 painting Methods 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 61
- 238000000576 coating method Methods 0.000 abstract description 36
- 239000011248 coating agent Substances 0.000 abstract description 24
- 239000000049 pigment Substances 0.000 abstract description 22
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000005002 finish coating Substances 0.000 abstract 1
- 239000003981 vehicle Substances 0.000 description 14
- 229920000877 Melamine resin Polymers 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 241000951471 Citrus junos Species 0.000 description 5
- 239000004640 Melamine resin Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 4
- 238000009503 electrostatic coating Methods 0.000 description 4
- 235000010215 titanium dioxide Nutrition 0.000 description 4
- 229920000180 alkyd Polymers 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 240000004307 Citrus medica Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 hallosite Chemical compound 0.000 description 2
- 239000001034 iron oxide pigment Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- QMYGFTJCQFEDST-UHFFFAOYSA-N 3-methoxybutyl acetate Chemical compound COC(C)CCOC(C)=O QMYGFTJCQFEDST-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N n-Butanol Substances CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、４コート塗装方法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a four-coat coating method.
（従来の技術）
４コート塗装方法は、従来より良好な外観を得るために
、高級車の塗装に使用されている。該方法は、第１コー
ト工程（下塗り工程）、第２コート工程（ブライマ一工
程）、第３コート工程（シーラ一工程）及び第４コート
工程（上塗り工程）の４工程からなり、第１コート工程
では通常電着塗装により車体外板及びエンジンルーム、
ランゲージルーム等の室内を灰色に塗装し、第２コート
工程では二酸化チタンとカーボンブラックからなる灰色
の顔料を含む塗料を車体外板に塗布し、第３コート工程
では第２工程で使用した塗料と同様の塗料であって、灰
色の顔料の代わりに塗装色の顔料を含有する塗料を車体
外板に塗布し、その後、第４コート工程では、塗装色の
顔料を含み、光沢、耐久性に優れた塗料を車体外板及び
エンジンルーム、ラッゲージルーム等の室内に塗布する
ことにより塗装を行うものである。従って、該方法は第
１コート工程で下塗りした後、第２コート工程及び第３
コート工程の２工程で凹凸の微調整を行うと共に、また
塗膜間の密着性を高めた後に上塗りするため、外観的に
非常に優れた塗装品を得ることができる。なお、上記方
法において、エンジンルーム等の室内は、第１コート工
程、即ち下塗り工程及び第４工程即ち上塗り工程の２工
程で塗装される。(Prior Art) A four-coat painting method is used for painting luxury cars in order to obtain a better appearance than before. The method consists of four steps: a first coat step (undercoat step), a second coat step (one step of braiser), a third coat step (one step of sealer), and a fourth coat step (top coat step). In the process, the outer panels of the car body, engine compartment,
The language room and other interior areas are painted gray, and in the second coat process, a paint containing a gray pigment made of titanium dioxide and carbon black is applied to the exterior of the car body, and in the third coat process, the paint used in the second process is applied. A similar paint that contains paint-colored pigments instead of gray pigments is applied to the exterior of the car body, and then in the fourth coating process, it contains paint-colored pigments and has excellent gloss and durability. Painting is done by applying the paint to the exterior of the vehicle body and interior spaces such as the engine room and luggage room. Therefore, the method includes undercoating in the first coat step, followed by the second coat step and the third coat step.
In addition to finely adjusting the unevenness in the two coating steps, the adhesion between the coating films is also increased before the topcoating is applied, making it possible to obtain a coated product with an extremely excellent appearance. In the above method, the interior of the room such as the engine room is coated in two steps: a first coat step, that is, an undercoat step, and a fourth step, that is, a top coat step.
（発明が解決しようとする問題点）
しかしながら、上記の第３コート工程及び第４コート工
程で使用する塗料は、構造粘性を有する顔料を含有する
ため粘性が高くなり、このため塗面にユズの表面のよう
な凹凸が形成される、いわゆるユズ肌（オレンジピール
）が生じて、仕上がり品の外観品質が低下することが問
題となっている。また、顔料が高価であるため顔料を含
有する塗料が高価になり、これを第３コート工程及び第
４コート工程で使用する場合、通常の塗装方法に比べて
コストが著しく高くなるという問題もある。(Problems to be Solved by the Invention) However, the paint used in the third and fourth coating steps has a high viscosity because it contains pigments with structural viscosity, and this results in a yuzu-like appearance on the painted surface. The problem is that so-called citron peel (orange peel), which is the formation of surface irregularities, deteriorates the appearance quality of the finished product. In addition, since pigments are expensive, paints containing pigments are expensive, and when this is used in the third and fourth coating processes, there is the problem that the cost is significantly higher than with normal painting methods. .
さらに、該方法においては、エンジンルーム等の室内を
第４コートの工程で塗装しているが、第４コート工程で
使用する塗料は、光沢、耐候性等の点で優れた性質を得
ることを目的とするため高価であり、さらに塗装コスト
を上げることになる。Furthermore, in this method, interiors such as the engine room are painted in the fourth coat process, and it is believed that the paint used in the fourth coat process has excellent properties such as gloss and weather resistance. Since it is used for this purpose, it is expensive and further increases the painting cost.
従って本発明においては、ユズ肌による外観品質の低下
が防止され、また、従来の４コート塗装方法に比べてコ
ストが低い４コート塗装方法を提供することを目的とす
る。Therefore, an object of the present invention is to provide a 4-coat coating method that prevents deterioration in appearance quality due to yuzu skin and is lower in cost than conventional 4-coat coating methods.
（問題点を解決するための手段）
上記の目的を達成するために、本発明は自動車の４コー
ト塗装方法において、第３工程で使用する塗料を半透明
塗料またはクリヤー塗料としたことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that in a four-coat painting method for automobiles, the paint used in the third step is a translucent paint or a clear paint. do.
第１コート工程（下塗り工程）は、従来の方法と同様に
、車体外板及びエンジンルーム等の室内を電着塗装、例
えばカチオン電着塗装することよりなる。The first coating step (undercoating step) consists of applying electrodeposition coating, for example, cationic electrodeposition coating, to the outer panels of the vehicle body and the interior of the engine room, etc., as in the conventional method.
第２コート工程（プライマ一工程）においては、車体外
板は従来の塗装方法と同様に、灰色の顔料を含む塗料の
うち適当なものを塗装する。塗料としては通常この目的
に使用されるいずれの塗料を使用してもよく、例えばポ
リエステルフェスとメラミン樹脂からなるビヒクルと顔
料からなる塗料をシンナーで希釈したものを使用しうる
。好ましくは、本工程において、エンジンルーム等の室
内を上記塗料と同様の組成を有し灰色の顔料の代わりに
上塗り塗装の塗料色と同色の顔料を含む塗料で塗装する
のが好ましい。当然ながら、本工程で室内を塗装した場
合、第４コート工程では室内を塗装する必要はない。In the second coating step (first primer step), the outer panel of the vehicle body is coated with a suitable paint containing a gray pigment, similar to the conventional painting method. As the paint, any paint commonly used for this purpose may be used; for example, a paint consisting of a polyester face, a vehicle made of a melamine resin, and a pigment diluted with thinner may be used. Preferably, in this step, the interior of the engine room or the like is painted with a paint having the same composition as the above paint and containing a pigment of the same color as the paint color of the top coat instead of a gray pigment. Naturally, if the interior is painted in this step, there is no need to paint the interior in the fourth coat step.
第３コート工程（シーラ一工程）においては、半透明塗
料またはクリヤー塗料を車体外板に塗装する。本工程で
使用する塗料は、半透明または透明のものであれば、通
常この目的に使用される塗料のいずれを用いてもよく、
例えば上記のビヒクルと体質顔料とからなるものを、上
記と同様に希釈して使用することができる。体質顔料と
しては、いずれの種類のものを使用してもよく、例えば
炭酸カルシウム、硫酸バリウム、シリカ、アルミナ、炭
酸マグネシウム、カオリナイト、ハロサイト、白雲母、
タルク等を使用しうる。In the third coating step (first sealer step), a translucent paint or clear paint is applied to the outer panel of the vehicle body. The paint used in this step may be any paint normally used for this purpose, as long as it is translucent or transparent.
For example, the above-mentioned vehicle and extender pigment can be diluted and used in the same manner as above. Any type of extender pigment may be used, such as calcium carbonate, barium sulfate, silica, alumina, magnesium carbonate, kaolinite, hallosite, muscovite,
Talc etc. can be used.
第４コート工程（上塗り工程）においては、所望の塗装
色を得るための顔料を含有し、光沢、耐候性等の性質に
優れた塗料を塗布する。そのような塗料としては、例え
ばアルキド樹脂とメラミン樹脂からなるビヒクル及び顔
料からなるものを、適当なシンナーで希釈して使用する
ことができる。In the fourth coating step (top coating step), a paint containing a pigment to obtain a desired paint color and having excellent properties such as gloss and weather resistance is applied. As such a paint, for example, one consisting of a vehicle consisting of an alkyd resin and a melamine resin and a pigment can be used after being diluted with a suitable thinner.
上記方法において、エンジンルーム等の室内は、第１コ
ート工程、即ち下塗り工程及び第２コート工程即ちプラ
イマ一工程の２工程で塗装される。In the above method, the interior of an engine room or the like is painted in two steps: a first coat step, that is, an undercoat step, and a second coat step, that is, a primer step.
（作用）
上記のように、第３コート工程で体質顔料を含む半透明
塗料または透明塗料を塗布することにより４コート塗装
して得られた塗装品は、ユズ肌等の外観不良を生じなか
った。これは、従来方法においてはユズ肌の原因となる
粘性の高い塗料を２工程にわたって塗装していたため、
第３コートで生じた凹凸の振幅を第４コートでさらに増
大させ、外観上問題となるユズ肌を形成する結果となっ
ていたが、本発明においては、これを第４コート工程の
みとしたことにより、生じる凹凸の振幅が外観上問題と
なる程には到らなかったためと思われる。しかも、本発
明においては第１コート工程で下塗りをした後、第２コ
ート工程及び第３コート工程で塗装面の凹凸を１［整し
て第４コート工程で上塗りを行う点については、従来の
４コート塗装と同様であるため、結果として、非常に優
れた外観を呈する塗装を得ることができる。(Effect) As mentioned above, the painted product obtained by applying 4 coats of translucent paint or transparent paint containing extender pigment in the 3rd coat step did not have appearance defects such as yuzu skin. . This is because in the conventional method, highly viscous paint, which causes yuzu skin, was applied in two steps.
The amplitude of the unevenness generated in the third coat was further increased in the fourth coat, resulting in the formation of a yuzu skin that was problematic in appearance, but in the present invention, this was done only in the fourth coat step. This is thought to be because the amplitude of the resulting unevenness did not reach a level that caused a problem in terms of appearance. Moreover, in the present invention, after applying an undercoat in the first coat process, the unevenness of the painted surface is leveled by one level in the second and third coat processes, and the top coat is applied in the fourth coat process, unlike the conventional method. Since this is the same as 4-coat painting, the result is a paint that exhibits a very good appearance.
（実施例） 以下、実施例により本発明をさらに詳細に説明する。(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例：
本発明の４コート塗装方法により、自動車の車体外板及
びエンジンルーム及びラッゲージルームの内板を塗装す
る。図は本実施例により車体外板及び車体内板に形成さ
れる塗膜１を示す。Example: The four-coat coating method of the present invention is used to paint the outer panels of an automobile body and the inner panels of an engine room and a luggage room. The figure shows a coating film 1 formed on the outer and inner panels of a vehicle body according to this embodiment.
自動車の車体外板並びにエンジンルーム及びラフゲージ
ルームの内仮にカチオン電着塗装を施した（第１コート
工程）。これにより、車体外板及び内仮に下塗り塗膜２
が形成される。Cationic electrodeposition coating was applied to the outside of the car body and the inside of the engine room and rough gauge room (first coating process). As a result, the undercoat film 2 is applied to the outer and inner parts of the car body.
is formed.
得られた電着塗装車体外板に、分子量約５０００のフタ
ル酸系水酸基含有ポリエステルフェスと分子量約３００
０のｎ−ブタノール変性メラミン樹脂ワニス（ポリエス
テル／メラミン樹脂の固形分比率＝７／３）からなるビ
ヒクル固形分１００部に対し、チタン白８０部、カーボ
ンブランク０．５部を分散し、さらにこれをキシレン５
０部、３−メトキシブチルアセテート２０部及びツルペ
ッツ＃１５０ （エッソスタンダード石油製）３０部か
らなるシンナーで２０℃でフォードカップＮｏ４で２４
秒の粘度になるように希釈して製造された灰色塗料を、
回転霧化静電塗装機を用いて塗装し、灰色塗膜３を得た
。さらに、上記のビヒクル１００部、酸化鉄顔料（戸田
工業製ベンガラＫＮＯ）５部、有機光顔料（東洋曹達製
ルビクロンレッド４５１Ｒ）１５部、チタン白２部を分
散させ、上記のシンナーを用いて上記粘度になるように
希釈して製造される赤色塗料をエアー霧化塗装機を用い
てエンジンルーム及びラフゲージルーム内に塗装し、こ
れを１０分間放置した後、１４０℃で２０分間焼き付け
、赤色塗膜４を得た。A phthalic acid-based hydroxyl group-containing polyester face with a molecular weight of about 5,000 and a molecular weight of about 300 are applied to the obtained electrodeposited car body outer panel.
80 parts of titanium white and 0.5 part of carbon blank were dispersed in 100 parts of vehicle solid content consisting of n-butanol-modified melamine resin varnish (solid content ratio of polyester/melamine resin = 7/3) of xylene 5
0 parts, 20 parts of 3-methoxybutyl acetate, and 30 parts of Tsurpetz #150 (manufactured by Esso Standard Oil) at 20°C with Ford Cup No. 4.
A gray paint made by diluting it to a viscosity of seconds,
A gray coating film 3 was obtained by coating using a rotary atomizing electrostatic coating machine. Furthermore, 100 parts of the above vehicle, 5 parts of iron oxide pigment (red iron oxide KNO manufactured by Toda Kogyo Co., Ltd.), 15 parts of an organic photo pigment (Rubicron Red 451R manufactured by Toyo Soda Co., Ltd.), and 2 parts of titanium white were dispersed, and the mixture was dispersed using the above thinner. A red paint prepared by diluting it to the above viscosity was applied to the engine room and rough gauge room using an air atomization paint machine, left to stand for 10 minutes, and then baked at 140°C for 20 minutes to create a red color. Coating film 4 was obtained.
（第２コート工程）。(Second coat step).
続いて、上記のビヒクル固形分１００部に対し硫酸バリ
ウム体質顔料（堺化学製沈降性硫酸バリウム１１１００
） ８０部を分散させ、さらに上記灰色塗料と同じシン
ナーで同じ粘度になるように希釈して製造した半透明顔
料を回転霧化静電塗装機により車体外板部に自動塗装し
、１０分間放置した後、１４０℃で２０分間焼き付け、
半透明塗膜５を形成した（第３コート工程）。この際、
塗料の一部は隙間からエンジンルーム及びラフゲージル
ームに入り込み、塗膜を形成するが、該塗料は半透明塗
料であるため意匠的な不都合はない。Subsequently, a barium sulfate extender pigment (precipitated barium sulfate 11100 manufactured by Sakai Chemical Co., Ltd.) was added to 100 parts of the solid content of the vehicle.
) A translucent pigment prepared by dispersing 80 parts and further diluting it with the same thinner as the above gray paint to the same viscosity was automatically applied to the outer panel of the car body using a rotary atomizing electrostatic coating machine, and left for 10 minutes. After that, bake at 140℃ for 20 minutes,
A translucent coating film 5 was formed (third coating step). On this occasion,
A part of the paint enters the engine room and rough gauge room through the gap and forms a paint film, but since the paint is a translucent paint, there is no problem in terms of design.
次に、ヤシ油脂肪酸変性アルキド樹脂ワニスとｎ−ブタ
ノール変性メラミン樹脂ワニスからなるビヒクル（アル
キド／メラミンの固形分比率＝７／３）に樹脂固形分１
００部あたり酸化鉄顔料５部、有機赤顔料１５部、チタ
ン白２部を分散し、さらに第３コート工程で使用したシ
ンナーにより上記と同じ粘度となるように希釈して製造
された赤色塗料を、回転霧化静電塗装機を用いて車体外
板部に自動塗装し、１０分間放置した後、１４０℃で２
０分間焼き付け、車体外板に上塗り塗膜６を形成しく第
４コート工程）、塗装を完了した。Next, a vehicle consisting of a coconut oil fatty acid modified alkyd resin varnish and an n-butanol modified melamine resin varnish (solid content ratio of alkyd/melamine = 7/3) was added with a resin solid content of 1
A red paint produced by dispersing 5 parts of iron oxide pigment, 15 parts of organic red pigment, and 2 parts of titanium white per 00 parts, and further diluting it with the thinner used in the third coating process to the same viscosity as above. , Automatically coated the outer panel of the car body using a rotary atomizing electrostatic coating machine, left it for 10 minutes, and then heated it at 140℃ for 2 hours.
After baking for 0 minutes, a top coat 6 was formed on the outer panel of the vehicle body (fourth coating step), and painting was completed.
比較例：
実施例１と同様の方法により電着塗装した後（第１コー
ト工程）、車体外板を実施例１に示した灰色塗料により
塗装する（第２コート工程）。Comparative Example: After electrocoating by the same method as in Example 1 (first coating step), the outer panel of the vehicle body is painted with the gray paint shown in Example 1 (second coating step).
その後、実施例１の第２コート工程でエンジンルーム及
びラフゲージルームに塗装した塗料を回転霧化静電塗装
機で自動塗装し、１０分間放置した後、１４０℃で２０
分間焼き付けた（第３コート工程）。続いて、実施例１
の第４コート工程で使用した赤色塗料を回転霧化静電塗
装機を用いて車体外板部に塗装し、さらに、該赤色塗料
をエアー霧化塗装機を用いてエンジンルーム及びランゲ
ージルーム内に塗装して（第４コート工程）、塗装を完
了した。Thereafter, the paint applied to the engine room and rough gauge room in the second coating step of Example 1 was automatically applied using a rotary atomizing electrostatic coating machine, left for 10 minutes, and heated to 20°C at 140°C.
It was baked for a minute (third coat step). Next, Example 1
The red paint used in the fourth coat step was applied to the exterior of the car body using a rotary atomizing electrostatic atomizer, and then the red paint was applied to the engine room and language room using an air atomizer. Painting was completed (fourth coat step).
下記に、上記実施例及び比較例の方法を簡潔にまとめた
表を示す。Below is a table that briefly summarizes the methods of the above Examples and Comparative Examples.
上記の実施例及び比較例により得られた塗装品の外観を
比較したところ、実施例による塗装品は極めて良好な仕
上がり性を有するのに対し、比較例による塗装品は一部
にユズ肌の形成が見られるなど、外観が劣っている。A comparison of the appearance of the painted products obtained in the above Examples and Comparative Examples revealed that the painted products according to the Examples had extremely good finishing properties, whereas the painted products according to the Comparative Examples had yuzu skin in some parts. The appearance is poor, with visible signs of
（発明の効果）
本発明は、第３コート工程で半透明及び透明塗料を使用
するため、構造粘性を有する顔料は第４コート工程、即
ち上塗り工程で使用する塗料にのみ配合すればよいため
、ユズ肌を生じることがなく、しかも４コート塗装方法
の利点である優れた外観を有する塗装品を得ることがで
きる。また、顔料コストが低下し、さらに従来方法では
内板を第４コート工程で塗装していたため高価な塗料を
要していたが、本発明の方法では第２コート工程で比較
的安価な塗料で塗装するため、最終的な塗装コストを著
しく低減することができる。(Effects of the Invention) Since the present invention uses translucent and transparent paints in the third coating process, the pigment with structural viscosity only needs to be blended into the paint used in the fourth coating process, that is, the top coating process. It is possible to obtain a coated product that does not produce citron skin and has an excellent appearance, which is an advantage of the four-coat coating method. In addition, the cost of pigments has been reduced, and in contrast to the conventional method, which required expensive paint to paint the inner panel in the fourth coat process, the method of the present invention uses relatively inexpensive paint in the second coat process. Because it is painted, the final painting cost can be significantly reduced.
図は本発明の一実施例により得られる塗膜を示す図であ
る。
１・・・塗膜 ２・・・下塗り塗膜３・・・
灰色塗膜 ４・・・赤色塗膜５・・・半透明塗膜
６・・・上塗り塗膜７・・・鉄板
特許出願人 トヨタ自動車株式会社
同 関西ペイント株式会社
（ほか２名）The figure shows a coating film obtained according to an example of the present invention. 1... Paint film 2... Undercoat film 3...
Gray paint film 4...Red paint film 5...Translucent paint film 6...Top coat film 7...Iron plate Patent applicant Toyota Motor Corporation Kansai Paint Co., Ltd. (and 2 others)
Claims (1)
る塗料を半透明塗料またはクリヤー塗料としたことを特
徴とする４コート塗装方法。A 4-coat painting method for automobiles, characterized in that the paint used in the third step is a translucent paint or a clear paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61212441A JPH0649180B2 (en) | 1986-09-09 | 1986-09-09 | 4 coat painting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61212441A JPH0649180B2 (en) | 1986-09-09 | 1986-09-09 | 4 coat painting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6369575A true JPS6369575A (en) | 1988-03-29 |
| JPH0649180B2 JPH0649180B2 (en) | 1994-06-29 |
Family
ID=16622659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61212441A Expired - Lifetime JPH0649180B2 (en) | 1986-09-09 | 1986-09-09 | 4 coat painting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649180B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5969178A (en) * | 1982-10-15 | 1984-04-19 | Dainippon Toryo Co Ltd | How to paint a car body |
| JPS6075369A (en) * | 1983-10-01 | 1985-04-27 | Mazda Motor Corp | Intermediate painting method |
-
1986
- 1986-09-09 JP JP61212441A patent/JPH0649180B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5969178A (en) * | 1982-10-15 | 1984-04-19 | Dainippon Toryo Co Ltd | How to paint a car body |
| JPS6075369A (en) * | 1983-10-01 | 1985-04-27 | Mazda Motor Corp | Intermediate painting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649180B2 (en) | 1994-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100996533B1 (en) | Multi-layer coating method to achieve high saturated color appearance on vehicle | |
| JPH11503064A (en) | Multi-layer coating method | |
| US20100159146A1 (en) | Process For The Production Of Multi-Layer Coatings | |
| JP2010029765A (en) | Method of painting car body | |
| JP2002205006A (en) | Method of coating outside and inside panel part of automobile | |
| JPS6369575A (en) | 4-coat painting method | |
| JP2001225006A (en) | Method for coating car body | |
| JP3783090B2 (en) | Car overcoating method | |
| JPH10330657A (en) | Metallic coating material and formation of plural layered coating film | |
| JP3262320B2 (en) | How to paint a car body | |
| JP2001149857A (en) | Method for forming metallic coating film | |
| JP2001149853A (en) | Method for forming metallic coating film | |
| JP2000279877A (en) | Multilayer metallic coating method | |
| JP2005007219A (en) | Method for forming luster color coating film | |
| JP2000157921A (en) | Formation of laminated coating film | |
| JPS62124160A (en) | Baked-on repair method for matte paint, repair paint, and gradation liquid | |
| JPH0323224B2 (en) | ||
| JPH09206670A (en) | Two-color coat finishing method | |
| JP3176810B2 (en) | How to paint a car | |
| JP2515336B2 (en) | Top coating method for automobiles | |
| JPH10244218A (en) | Coating method for top coat of automobile | |
| JP2003225610A (en) | Method of forming luster color coating film | |
| JPS63205177A (en) | Method for top coat painting of automobile | |
| JPS62149765A (en) | Acrylic/melamine resin paint | |
| JP2002256216A (en) | Inter coating composition having high opacifying property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |