JPH02131171A - Coating - Google Patents
CoatingInfo
- Publication number
- JPH02131171A JPH02131171A JP28323988A JP28323988A JPH02131171A JP H02131171 A JPH02131171 A JP H02131171A JP 28323988 A JP28323988 A JP 28323988A JP 28323988 A JP28323988 A JP 28323988A JP H02131171 A JPH02131171 A JP H02131171A
- Authority
- JP
- Japan
- Prior art keywords
- color
- coat
- clear
- color intermediate
- intermediate film
- 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
- 238000000576 coating method Methods 0.000 title claims description 43
- 239000011248 coating agent Substances 0.000 title claims description 34
- 239000003973 paint Substances 0.000 claims abstract description 15
- 238000004070 electrodeposition Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 12
- 239000005002 finish coating Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 description 18
- 229920000877 Melamine resin Polymers 0.000 description 7
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 7
- 229920000180 alkyd Polymers 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- ZLFVRXUOSPRRKQ-UHFFFAOYSA-N chembl2138372 Chemical compound [O-][N+](=O)C1=CC(C)=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 ZLFVRXUOSPRRKQ-UHFFFAOYSA-N 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- SUXCALIDMIIJCK-UHFFFAOYSA-L disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(N=NC3=CC=C(C=C3C)C=3C=C(C(=CC=3)N=NC=3C(=C4C=CC=CC4=C(C=3)S([O-])(=O)=O)N)C)=CC(S([O-])(=O)=O)=C21 SUXCALIDMIIJCK-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012736 patent blue V Nutrition 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000036642 wellbeing Effects 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〕
本発明は塗装方法に関する。さらに詳しくは、優れた透
明感およびつや感をうろことができる塗装方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coating method. More specifically, the present invention relates to a coating method that provides excellent transparency and gloss.
従来より、たとえば自動車ボデーを塗装する方法として
は、一般に３コート法と呼ばれる方法が多用されている
。この３コート法は、電着、中塗および上塗の３つの塗
膜の組み合わせによるものであり、この方法では漆のよ
うなつや感は出に＜＜、中塗または上塗の塗料樹脂など
の改良によりつや感の向上が試みられているが、未だ充
分な成果はえられていない。BACKGROUND ART Conventionally, a method generally called a three-coat method has been widely used as a method for painting, for example, an automobile body. This three-coat method is based on a combination of three coatings: electrodeposition, intermediate coating, and top coating.This method does not produce a lacquer-like shine, but it can be achieved by improving the paint resin of the intermediate coating or top coating. Attempts have been made to improve the sense of well-being, but sufficient results have not yet been achieved.
一方、最近いわゆるスーパーカラーと呼ばれる、中塗塗
膜をカラー化し、その上に高彩色の低隠ぺい性上塗塗料
を塗布する方法が採用されている。しかしながら、この
方法はあくまでも鮮やかな色彩を出すための方法であり
、つや感や透明感の向上には寄与していない。On the other hand, recently, a method called "super color" has been adopted in which the intermediate coat is colored and a highly colored, low-hidden top coat is applied thereon. However, this method is only a method for producing vivid colors, and does not contribute to improving gloss or transparency.
本発明は、叙上の事情に鑑み、高彩色のみならず優れた
つや感および透明感をうろことのできる塗装方法を提供
することを目的とする。SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a coating method that provides not only high coloring but also excellent gloss and transparency.
本発明の塗装方法は、被塗物の上に電着塗膜およびカラ
ー中塗塗膜をこの順に設け、該カラー中塗塗膜を焼き付
けたのちにまたはウェットオンウェットで前記カラー中
塗塗膜の上にクリヤー塗料を塗布し、焼き付けを行い、
さらにえられたクリヤー塗膜の上に低隠ぺい性上塗塗膜
を設けることを特徴としている。In the coating method of the present invention, an electrodeposition coating film and a color intermediate coating film are provided in this order on the object to be coated, and after the color intermediate coating film is baked, or wet-on-wet, the color intermediate coating film is coated on top of the color intermediate coating film. Apply clear paint, bake,
Furthermore, it is characterized in that a low-hidden top coat is provided on the obtained clear coat.
以下、自動車ボデーを塗装するばあいを例にとって本発
明の塗装方法を説明する。The painting method of the present invention will be described below, taking the case of painting an automobile body as an example.
まず被塗物である自動車ボデーに電着塗装を施し、つい
でカラー中塗塗膜を設ける。そして、カラー中塗塗膜を
焼き付けたのちに、または工程を簡略化するためにカラ
ー中塗塗膜を焼付けずに、すなわちいわゆるウェットオ
ンウェットでクリヤー塗料を塗布し、焼付ける。First, the object to be coated, the automobile body, is electrocoated, and then a color intermediate coat is applied. Then, after the color intermediate coating film is baked, or to simplify the process, a clear paint is applied and baked without baking the color intermediate coating film, that is, in a so-called wet-on-wet manner.
電着塗膜およびカラー中塗塗膜は従来と同様に形成すれ
ばよい。たとえばカラー中塗塗料としてはメラミンアル
キド樹脂系、ポリエステル樹脂系、ポリウレタン樹脂系
などのものが使用でき、着色顔料としては通常使用され
る顔料、たとえばベンガラ、酸化チタン、カーボンブラ
ック、パーマネントレッド４Ｒなどが用いられる。The electrodeposited coating film and the color intermediate coating film may be formed in a conventional manner. For example, melamine alkyd resin, polyester resin, polyurethane resin, etc. can be used as the color intermediate coating, and commonly used pigments such as red iron, titanium oxide, carbon black, and permanent red 4R can be used as the coloring pigment. It will be done.
クリヤー塗料としては顔料を含有しないほかは従来の中
塗塗料と同様な組成のものが使用される。クリヤー塗膜
の厚さは１５〜５０一程度が好ましい。クリヤー塗膜の
厚さが１５ｍより小さいとツヤに対する効果が不充分で
あり、５０廓より大きいとクリヤーのタレ、ワキといっ
た塗膜欠陥が発生する。The clear paint used has the same composition as a conventional intermediate paint, except that it does not contain pigments. The thickness of the clear coating film is preferably about 15 to 50 mm. If the thickness of the clear coating film is less than 15 m, the effect on gloss is insufficient, and if it is greater than 50 m, coating defects such as sagging or wrinkling of the clear will occur.
カラー中塗上にクリヤーをウェットオンウェットで塗装
するぱあいは、クリヤー塗料としてメラミンアルキッド
樹脂やポリエステル樹脂を用いるのが下塗との適当な相
溶性と上塗との密着性を考慮すると好ましい。When a clear coat is applied wet-on-wet over a color intermediate coat, it is preferable to use a melamine alkyd resin or a polyester resin as the clear coat in view of appropriate compatibility with the base coat and adhesion with the top coat.
クリヤー塗膜を焼き付けたのちに、当該クリヤー塗膜の
上に下層塗膜との相互作用を強く出すために従来のスー
パーカラー上塗よりもさらに低隠ぺい性の上塗塗料を塗
装し、焼き付けを行なう。After the clear paint film is baked, a top coat with lower opacity than the conventional super color top coat is applied on top of the clear paint film in order to strongly interact with the underlying paint film, and then baked.
こうして、カラー中塗塗膜と上塗塗膜のあいだにクリヤ
ー塗膜を設けることにより、高色彩のみならず高いつや
感と透明感をうることかできる。これは、一般に中塗塗
膜のような顔料を含むものとクリヤー塗膜のような顔料
を含まない層の表面形状を比較したぱあい、中塗塗膜よ
りもクリヤー塗膜の方が表面の凹凸が小さく滑らかであ
るからである。In this way, by providing a clear coating film between the color intermediate coating film and the top coating film, it is possible to obtain not only high color but also high gloss and transparency. In general, when comparing the surface shapes of a layer that contains pigments such as an intermediate coat and a layer that does not contain pigments such as a clear coat, the clear coat has more surface irregularities than the intermediate coat. This is because it is small and smooth.
上塗塗料としては顔料濃度を低くするほかは従来の上塗
塗料と同様なものが使用できる。As the top coat, the same one as the conventional top coat can be used except that the pigment concentration is lowered.
たとえば塗料樹脂としてはメラミンアルキド樹脂、メラ
ミンアクリル樹脂、ポリエステル樹脂、ポリウレタン樹
脂などが使用できる。For example, as the paint resin, melamine alkyd resin, melamine acrylic resin, polyester resin, polyurethane resin, etc. can be used.
顔料としては、前記した通常使用される顔料の他に、隠
ぺい力の比較的小さい耐候性、高彩度の顔料を使用でき
る。前記耐候性顔料としては、たとえばファストスカー
レット、キナクリドンレッド、グリーンゴールト、酸化
チタン、カーボンブラックなどが使用される。前記高彩
色の顔料としては、たとえばキナクリドンレッド、フタ
ロシアニングリーン、ファストスカイブルー、ハンザエ
ロ−３Ｇ，フタロシアニンブルーなどが使用される。こ
れら顔料は単独でまたは混合して使用される。As the pigment, in addition to the above-mentioned commonly used pigments, weather-resistant, high-chroma pigments with relatively low hiding power can be used. Examples of the weather-resistant pigments used include fast scarlet, quinacridone red, green galt, titanium oxide, and carbon black. Examples of the highly colored pigments used include quinacridone red, phthalocyanine green, fast sky blue, Hansaero-3G, and phthalocyanine blue. These pigments may be used alone or in mixtures.
上塗塗膜における顔料濃度は前記高隠ぺい力の顔料のぱ
あいは１５〜３５重量％、前記低隠ぺい力の顔料のぱあ
いは２０〜４５重量％程度が好ましい。顔料濃度が前記
範囲より高いと、透明感やつや感が向上されがたく、一
方前記範囲より低いと所望の塗色がえられかない。The pigment concentration in the top coat is preferably about 15 to 35% by weight of the pigment with high hiding power, and about 20 to 45% by weight of the pigment with low hiding power. When the pigment concentration is higher than the above range, it is difficult to improve the transparency and glossiness, while when it is lower than the above range, the desired coating color cannot be obtained.
上塗塗膜の厚さは２０〜６０一程度が適当である。The appropriate thickness of the top coat is about 20 to 60 mm.
前述した塗装方法において、上塗塗膜とカラー中塗塗膜
の色彩を同一にすると、透明感のある色彩感をうること
ができる。また上塗塗膜とカラー中塗塗膜を異なる色彩
にすることにより、本来の上塗の色彩とは異なる色彩か
えられる。In the above-described coating method, if the top coat and color intermediate coat have the same color, a transparent color can be obtained. Furthermore, by using different colors for the top coat and color intermediate coat, a color different from the original color of the top coat can be obtained.
本発明の塗装方法は、実施例としてあげた自動車ボデー
以外にもたとえば電気製品、建築材、家具、自転車、電
車などにも好適に適用することができる。The coating method of the present invention can be suitably applied to, for example, electrical appliances, building materials, furniture, bicycles, trains, etc., in addition to the automobile bodies mentioned in the examples.
つぎに実施例をあげて本発明を説明する。Next, the present invention will be explained with reference to Examples.
実施例
厚さ２０ｌＸＩｌの電着塗膜を設けた鋼板試験片上に、
固形分に対して酸化チタン、カーボンブラック（顔料）
を４２重量％含有するメラミンアルキド樹脂系中塗塗料
を乾燥後厚さが２５ｌ！ｍになるように塗布し、１４０
℃Ｘ３０分で焼付けてカラー中塗塗膜を形成した。Example: On a steel plate test piece provided with an electrodeposited coating film having a thickness of 20 lXIl,
Titanium oxide, carbon black (pigment) based on solid content
After drying, the melamine alkyd resin intermediate coating containing 42% by weight has a thickness of 25 liters! Apply it so that it becomes 140 m.
It was baked at ℃ for 30 minutes to form a color intermediate coating film.
前記カラー中塗塗膜上に、メラミンアルキド樹脂系クリ
ヤー塗料を乾燥後厚さが４０扉になるように塗布し、１
４０℃×３０分で焼付けてクリヤー塗膜を形成した。A melamine alkyd resin-based clear paint was applied on the color intermediate coating film to a thickness of 40 doors after drying.
A clear coating film was formed by baking at 40°C for 30 minutes.
前記クリヤー塗膜上に、固形分に対して酸化チタン、カ
ーボンブラックを３０重量％含有するメラミンアルキド
樹脂系上塗塗料を乾燥後厚さが２５μｍとなるようにス
プレー塗布し、１４０℃×３０分で焼付けた。On the clear coating film, a melamine alkyd resin top coat containing 30% by weight of titanium oxide and carbon black based on the solid content was spray-coated to a thickness of 25 μm after drying, and then heated at 140°C for 30 minutes. Burnt.
比較例
クリヤー塗膜を形成せず、上塗塗料の顔料濃度を３０重
量％に変更した以外は実施例と同様にして塗膜を形成し
た。Comparative Example A coating film was formed in the same manner as in the example except that a clear coating film was not formed and the pigment concentration of the top coat was changed to 30% by weight.
前記実施例および比較例でえられた塗装試験片について
つぎのテストを行なった。結果を第１表に示す。The following tests were conducted on the painted test pieces obtained in the Examples and Comparative Examples. The results are shown in Table 1.
つや感：東海理化製グロステスターにより測定
透明感：５人のパネラーによる目視評価第 １
表
〔発明の効果〕
以上説明したとおり、本発明の塗装方法によれば、優れ
たつや感および透明感をうることかできる。Glossiness: Measured using a gloss tester manufactured by Tokai Rika Transparency: Visual evaluation by 5 panelists 1st
Table [Effects of the Invention] As explained above, according to the coating method of the present invention, excellent gloss and transparency can be obtained.
Claims (1)
順に設け、該カラー中塗塗膜を焼き付けたのちにまたは
ウェットオンウェットで前記カラー中塗塗膜の上にクリ
ヤー塗料を塗布し、焼き付けを行い、さらにえられたク
リヤー塗膜の上に低隠ぺい性上塗塗膜を設けることを特
徴とする塗装方法。1. An electrodeposition coating film and a color intermediate coating film are provided in this order on the object to be coated, and after the color intermediate coating film is baked, a clear paint is applied on the color intermediate coating film by wet-on-wet, A coating method characterized by baking and further providing a low-hidden top coat on the resulting clear coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28323988A JP2510258B2 (en) | 1988-11-09 | 1988-11-09 | Painting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28323988A JP2510258B2 (en) | 1988-11-09 | 1988-11-09 | Painting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02131171A true JPH02131171A (en) | 1990-05-18 |
| JP2510258B2 JP2510258B2 (en) | 1996-06-26 |
Family
ID=17662893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28323988A Expired - Lifetime JP2510258B2 (en) | 1988-11-09 | 1988-11-09 | Painting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510258B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196987A (en) * | 1995-01-20 | 1996-08-06 | Kansai Paint Co Ltd | Coating film forming method |
-
1988
- 1988-11-09 JP JP28323988A patent/JP2510258B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196987A (en) * | 1995-01-20 | 1996-08-06 | Kansai Paint Co Ltd | Coating film forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2510258B2 (en) | 1996-06-26 |
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