JPH1110081A - Formation of double layer coating film - Google Patents
Formation of double layer coating filmInfo
- Publication number
- JPH1110081A JPH1110081A JP16979497A JP16979497A JPH1110081A JP H1110081 A JPH1110081 A JP H1110081A JP 16979497 A JP16979497 A JP 16979497A JP 16979497 A JP16979497 A JP 16979497A JP H1110081 A JPH1110081 A JP H1110081A
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- JP
- Japan
- Prior art keywords
- paint
- coating material
- metallic
- coating
- coated
- 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.)
- Pending
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- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、着色ベ−ス塗料
（特に、チタン白顔料およびアルミニウムフレ−クを含
む白色ベ−ス塗料が好ましい）、フレ−ク状チタン白顔
料を含むメタリック塗料およびクリヤ塗料を順次塗装し
て、ち密で、しかも柔らか（シルキ−）なパ−ル調もし
くはメタリック調の複層塗膜の形成法に関する。The present invention relates to a colored base paint (particularly a white base paint containing titanium white pigment and aluminum flake is preferable), a metallic paint containing flaky titanium white pigment and The present invention relates to a method for forming a dense, soft (silky) par tone or metallic tone multilayer coating film by sequentially applying clear paint.
【０００２】[0002]
【従来の技術とその課題】チタン白顔料およびアルミニ
ウムフレ−クを含む白色ベ−ス塗料、酸化チタン被覆り
ん片状雲母粉末を配合した塗料およびクリヤ塗料を塗装
して、複層塗膜を形成する方法はすでに知られている
（例えば、特許第２６０５１３号参照）。2. Description of the Related Art A white base paint containing titanium white pigment and aluminum flake, a paint containing flaky mica powder coated with titanium oxide and a clear paint are applied to form a multilayer paint film. A method for performing this is already known (see, for example, Japanese Patent No. 260513).
【０００３】しかしながら、この複層塗膜は、高白度真
珠光沢感や色味安定性などはすぐれれているが、柔らか
なパ−ル感やメタリック感を有する塗膜に仕上げること
が困難であった。[0003] However, this multi-layer coating film is excellent in high whiteness pearl luster and color stability, but is difficult to finish into a coating film having a soft pearly or metallic feeling. there were.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は、着色ベ
−ス塗膜を基調とし、ち密で、柔らかなパ−ル感やメタ
リック感を有する新規な複層塗膜の形成法を提供するこ
とである。SUMMARY OF THE INVENTION An object of the present invention is to provide a novel method for forming a multi-layer coating film having a dense, soft pearly or metallic feeling based on a color-based coating film. It is to be.
【０００５】すなわち、本発明は、着色ベ−ス塗料
（Ａ）、フレ−ク状チタン白顔料を含むメタリック塗料
（Ｂ）およびクリヤ塗料（Ｃ）を塗装することを特徴と
する複層塗膜形成法（以下、「本発明方法」という）を
提供するものである。That is, the present invention provides a multi-layer coating film characterized by applying a colored base paint (A), a metallic paint (B) containing a flaky titanium white pigment, and a clear paint (C). The present invention provides a forming method (hereinafter, referred to as “the method of the present invention”).
【０００６】本発明方法について、さらに詳細に説明す
る。The method of the present invention will be described in more detail.
【０００７】着色ベ−ス塗料（Ａ）：メタリック塗料
（Ｂ）に先立って、被塗物に塗装する塗料であり、樹脂
成分、着色顔料、溶剤を含有し、さらに必要に応じて体
質顔料およびその他の塗料用添加剤などを配合してなる
熱硬化性液状塗料である。 Colored base paint (A ): A paint to be applied to an object to be coated prior to the metallic paint (B), which contains a resin component, a color pigment, a solvent, and, if necessary, an extender pigment and It is a thermosetting liquid paint containing other paint additives.
【０００８】着色ベ−ス塗料（Ａ）の色調は、何等制限
されず、有彩色および無彩色のいずれでもよいが、特
に、粉末状チタン白顔料およびアルミニウムフレ−クを
含み、この両顔料成分により、マンセルカラ−チャ−ト
でＮ７〜Ｎ９の範囲内の白色系塗膜を形成する熱硬化型
の白色ベ−ス塗料を使用すると、白色系で、かつ柔らか
なパ−ル感やメタリック感にすぐれた複層塗膜を形成で
きるのでより好ましい。かかる白色ベ−ス塗料として
は、樹脂成分、溶剤、粉末状チタン白顔料およびアルミ
ニウムフレ−クを含有し、さらに必要に応じて他の着色
顔料、体質顔料およびその他の塗料用添加剤などを配合
してなる熱硬化性液状塗料が好適である。この塗料
（Ａ）における樹脂成分としては熱硬化性樹脂組成物が
好ましく、具体的には、架橋性官能基を有するアクリル
樹脂、ポリエステル樹脂、アルキド樹脂ウレタン樹脂な
どの基体樹脂を、メラミン樹脂、尿素樹脂、ポリイソシ
アネ−ト化合物（ブロック体も含む）などの架橋剤と併
用したものがあげられ、これらは有機溶剤および／また
は水などの溶剤に溶解または分散して使用される。The color tone of the colored base coating material (A) is not limited at all, and may be either chromatic or achromatic. Particularly, it includes a powdery titanium white pigment and an aluminum flake. When a thermosetting white base paint which forms a white coating film in the range of N7 to N9 with a Munsell color chart is used, a white, soft pearly or metallic feeling is obtained. It is more preferable since a multi-layer coating film excellent in quality can be formed. Such a white base paint contains a resin component, a solvent, a powdery titanium white pigment and an aluminum flake, and further contains other coloring pigments, extenders and other paint additives as necessary. The thermosetting liquid paint obtained is preferred. As the resin component in the paint (A), a thermosetting resin composition is preferable. Specifically, a base resin such as an acrylic resin having a crosslinkable functional group, a polyester resin, an alkyd resin or a urethane resin is used as a resin component. Examples thereof include those used in combination with a crosslinking agent such as a resin and a polyisocyanate compound (including a block body). These are dissolved or dispersed in a solvent such as an organic solvent and / or water.
【０００９】粉末状チタン白顔料は二酸化チタンを主成
分とする白色顔料であり、その粒径が０．２〜０．３５
μｍ、特に０．２５〜０．３０μｍの範囲内にあるもの
が好ましい。また、アルミニウムフレ−クはりん片状の
金属アルミニウムであって、通常、その厚さが０．１〜
１．０μｍ、特に０．２〜０．５μｍの範囲内にあり、
そして粒径が１〜２０μｍの範囲内および、平均粒径が
１０μｍ以下であるものが好ましい。The powdery titanium white pigment is a white pigment containing titanium dioxide as a main component, and has a particle size of 0.2 to 0.35.
μm, particularly preferably in the range of 0.25 to 0.30 μm. The aluminum flake is flake-shaped metallic aluminum, and usually has a thickness of 0.1 to 0.1 mm.
1.0 μm, especially in the range of 0.2-0.5 μm,
It is preferable that the particle diameter is in the range of 1 to 20 μm and the average particle diameter is 10 μm or less.
【００１０】白色ベ−ス塗料の単独硬化塗膜は、チタン
白顔料およびアルミニウムフレ−クを含有し、しかもそ
の着色度合いをマンセルカラ−チャ−トに基いてＮ７〜
Ｎ９、好ましくはＮ７．５〜Ｎ８．８の範囲内にあるこ
とが好ましい。そのためには、一般に、チタン白顔料１
００重量部あたり、アルミニウムフレ−クを好ましくは
０．３〜１０重量部、特に好ましくは０．５〜５重量部
の比率で含有し、かつ上記両顔料成分の合計量が樹脂成
分の固形分１００重量部あたり４０〜２５０重量部、特
に８０〜１５０重量部の範囲内になるような割合で使用
することが好ましい。チタン白顔料およびアルミニウム
フレ−クの配合量をかかる範囲内に調整することによっ
て、光輝感がなく、しかも白色乃至薄灰色の塗膜が形成
され、しかも隠蔽性も良好である。[0010] A single cured coating of a white base paint contains a titanium white pigment and an aluminum flake, and its coloring degree is determined to be N7 to N7 based on the Munsell color chart.
It is preferably in the range of N9, preferably N7.5 to N8.8. For this purpose, generally, titanium white pigment 1
The aluminum flake is preferably contained in an amount of 0.3 to 10 parts by weight, particularly preferably 0.5 to 5 parts by weight, per 100 parts by weight, and the total amount of both pigment components is the solid content of the resin component. It is preferable to use such a proportion that it falls within the range of 40 to 250 parts by weight, particularly 80 to 150 parts by weight per 100 parts by weight. By adjusting the amount of the titanium white pigment and the aluminum flake in the above range, a white or light gray coating film having no glitter is formed, and the concealing property is also good.
【００１１】本発明方法において、着色ベ−ス塗料
（Ａ）は、金属やプラスチックなどの被塗物に直接塗装
しても差支えないが、通常、これらの被塗物に下塗塗料
（例えばカチオン電着塗料など）や中塗塗料などをあら
かじめ塗装し、硬化させてなる被塗物に塗装することが
好ましい。In the method of the present invention, the colored base paint (A) may be directly applied to an object such as a metal or a plastic. It is preferable to apply a coating material (such as a coating material) or an intermediate coating material in advance and apply it to an object to be cured.
【００１２】着色ベ−ス塗料（Ａ）は、静電塗装、エア
−スプレ−、エアレススプレ−などの方法で塗装するこ
とができ、その膜厚は硬化塗膜に基いて一般に５〜２０
μｍの範囲内が好ましい。該塗膜それ自体は約１００〜
約１７０℃の温度で架橋硬化させることができ、本発明
方法では架橋硬化させてから、または架橋硬化させるこ
となく未架橋硬化の該塗面に、下記のメタリック塗料
（Ｂ）を塗装する。The colored base paint (A) can be applied by a method such as electrostatic coating, air spray, or airless spray, and its film thickness is generally 5 to 20 based on the cured coating film.
It is preferably within the range of μm. The coating itself is about 100-
The cross-linking and curing can be performed at a temperature of about 170 ° C., and in the method of the present invention, the following metallic coating (B) is applied to the coated surface which has been cross-linked and cured without being cross-linked and cured.
【００１３】メタリック塗料（Ｂ）：着色ベ−ス塗料
（Ａ）の硬化もしくは未硬化の塗面に塗装する、フレ−
ク状チタン白顔料を含むメタリック塗料であり、樹脂成
分、フレ−ク状チタン白および溶剤を主成分とし、さら
に必要に応じてフレ−ク状酸化アルミニウム、フレ−ク
状雲母、その他の着色顔料、体質顔料および塗料用添加
剤などを配合してなる液状塗料である。[0013] Metallic paint (B ): A free paint to be applied to the cured or uncured surface of the colored base paint (A).
Metallic paint containing titanium pigment white pigment, resin component, flake titanium white and solvent as main components, and if necessary, flake aluminum oxide, flake mica, and other coloring pigments , A liquid paint comprising an extender, a paint additive, and the like.
【００１４】メタリック塗料（Ｂ）に用いられる、樹脂
成分としては熱硬化性樹脂組成物が好ましく、具体的に
は架橋性官能基を有するアクリル樹脂、ポリエステル樹
脂、アルキド樹脂、ウレタン樹脂などの基体樹脂を、メ
ラミン樹脂、尿素樹脂、ポリイソシアネ−ト化合物（ブ
ロック体も含む）などの架橋剤と併用したものがあげら
れ、これらは有機溶剤および／または水に溶解もしくは
分散して使用することができる。The resin component used in the metallic paint (B) is preferably a thermosetting resin composition, and specifically, a base resin such as an acrylic resin, a polyester resin, an alkyd resin, or a urethane resin having a crosslinkable functional group. Is used in combination with a crosslinking agent such as a melamine resin, a urea resin, and a polyisocyanate compound (including a block body). These can be used by dissolving or dispersing in an organic solvent and / or water.
【００１５】フレ−ク状チタン白顔料は、二酸化チタン
（ＴｉＯ2 ）をフレ−ク状に成型したものであり、形状
は燐片状であり、厚さは０．１〜１．０μｍ、特に０．
２〜０．５μｍ、長手方向寸法は２〜５０μｍ、特に１
０〜３０μｍであることが好ましい。このフレ−ク状チ
タン白顔料は表面が平滑で、これを含む塗膜は、二酸化
チタン被覆雲母含有塗膜に比べてち密で、柔らかなパ−
ル感やメタリック感を有する。The flaky titanium white pigment is obtained by molding titanium dioxide (TiO 2 ) into a flaky shape, has a flaky shape, and has a thickness of 0.1 to 1.0 μm, especially 0.
2 to 0.5 μm, longitudinal dimension 2 to 50 μm, especially 1
It is preferably from 0 to 30 μm. This flaky titanium white pigment has a smooth surface, and the coating containing it is denser and softer than the titanium dioxide-coated mica-containing coating.
It has a rustic and metallic feel.
【００１６】また、メタリック塗料（Ｂ）には、フレ−
ク状チタン白顔料に、さらにフレ−ク状酸化アルミニウ
ムおよび（または）フレ−ク状雲母を配合することがで
き、これらを含有させることにより、従来にないち密感
を有したシルキ−なパ−ル調塗膜が得られるので好まし
い。In addition, the metallic paint (B) includes
Flake-like aluminum oxide and / or flake-like mica can be further blended with the flake-like titanium white pigment, and by containing these, a silky particle having a denser feeling than before can be obtained. This is preferable because a luster-like coating film is obtained.
【００１７】フレ−ク状酸化アルミニウムは、酸化アル
ミニウム（Ａｌ2 Ｏ3 ）を主成分とし、このものはアル
ミナとも称され、形状はフレ−ク状であり、その厚さは
０．１〜１．０μｍ、特に０．２〜０．５μｍ、長手方
向寸法は２〜５０μｍ、特に１０〜３０μｍであること
が好ましい。この酸化アルミニウムフレ−クは表面が平
滑で、これを含む塗膜は、雲母フレ−ク含有塗膜に比べ
てキラキラしており、すぐれた光輝感を有している。ま
た、この酸化アルミニウムフレ−クは、その表面を酸化
チタンなどの金属酸化物で被覆しておくと、パ−ル調も
しくは光干渉作用を呈するので好ましい。The flake-like aluminum oxide is mainly composed of aluminum oxide (Al 2 O 3 ), which is also called alumina, has a flake-like shape, and a thickness of 0.1 to 1 mm. 0.0 μm, particularly 0.2 to 0.5 μm, and the longitudinal dimension is preferably 2 to 50 μm, particularly preferably 10 to 30 μm. The aluminum oxide flake has a smooth surface, and the coating film containing the flakes is more brilliant than the mica flake-containing coating film and has excellent glitter. The aluminum oxide flakes are preferably coated with a metal oxide such as titanium oxide because the aluminum flakes exhibit a par tone or light interference effect.
【００１８】フレ−ク状雲母として、りん片状雲母、さ
らにその表面を金属酸化物で被覆し雲母フレ−などが使
用でき、その厚さは０．１〜１．０μｍ、特に０．２〜
０．５μｍ、長手方向寸法は２〜５０μｍ、特に１０〜
３０μｍであることが好ましい。As the flaky mica, scaly mica, and a mica flare whose surface is coated with a metal oxide can be used, and its thickness is 0.1 to 1.0 μm, especially 0.2 to 1.0 μm.
0.5 μm, longitudinal dimension 2-50 μm, especially 10-10
It is preferably 30 μm.
【００１９】メタリック塗料（Ｂ）において、フレ−ク
状チタン白顔料の配合量は、樹脂組成物の固形分１００
重量部あたり、０．５〜３０重量部、特に３〜１０重量
部が好ましい。また、フレ−ク状酸化アルミニウムは、
樹脂組成物の固形分１００重量部あたり、３０重量部以
下、特に３〜１０重量部、フレ−ク状雲母は、樹脂組成
物の固形分１００重量部あたり、３０重量部以下、特に
３〜１０重量部が好ましい。In the metallic paint (B), the blending amount of the flaky titanium white pigment is 100% of the solid content of the resin composition.
0.5 to 30 parts by weight, particularly 3 to 10 parts by weight, per part by weight is preferred. Flaky aluminum oxide is
30 parts by weight or less, especially 3 to 10 parts by weight, based on 100 parts by weight of the solid content of the resin composition, and the flaky mica is 30 parts by weight or less, particularly 3 to 10 parts by weight, based on 100 parts by weight of the solid content of the resin composition. Parts by weight are preferred.
【００２０】該塗料（Ｂ）は、樹脂組成物、フレ−ク状
チタン白顔料などを有機溶剤または水など溶剤に混合分
散せしめることにより調製され、塗装時の固形分含有率
を２０〜６０重量％、好ましくは２５〜５０重量％で、
粘度を１０〜３０秒／フォ−ドカップ＃４／２０℃に調
整しておくことが好ましい。The paint (B) is prepared by mixing and dispersing a resin composition, a flaky titanium white pigment or the like in a solvent such as an organic solvent or water, and has a solid content of 20 to 60% by weight at the time of coating. %, Preferably 25-50% by weight,
It is preferable to adjust the viscosity to 10 to 30 seconds / ford cup # 4/20 ° C.
【００２１】メタリック塗料（Ｂ）は、上記の着色ベ−
ス塗料（Ａ）の硬化もしくは未硬化の塗面に、エアスプ
レ−、エアレススプレ−または静電塗装機などで、硬化
塗膜に基く膜厚が、例えば１５以上、２０〜７０μｍに
なるように塗装することが好ましい。The metallic paint (B) is formed of the above-mentioned colored base.
Coating the cured or uncured coating surface of the paint (A) with an air spray, airless spray or electrostatic coating machine so that the film thickness based on the cured coating film is, for example, 15 or more and 20 to 70 μm. Is preferred.
【００２２】本発明方法において、着色ベ−ス塗料
（Ａ）のうち白色ベ−ス塗料は隠蔽性がすぐれているの
で、メタリック塗料（Ｂ）との合計硬化塗膜が４０μｍ
以下であっても隠蔽性は良好である。In the method of the present invention, the white base paint among the colored base paints (A) has excellent concealing properties, so that the total cured coating film with the metallic paint (B) has a thickness of 40 μm.
The concealing property is good even if it is below.
【００２３】本発明方法は、このように塗装してなるメ
タリック塗料（Ｂ）の未硬化塗面に、もしくは１２０〜
１７０℃で１０〜６０分間加熱して架橋硬化させてなる
塗面に、クリヤ塗料（Ｃ）を塗装する。The method of the present invention can be applied to the uncured coated surface of the metallic paint (B) thus coated, or
The clear paint (C) is applied to the coating surface which is crosslinked and cured by heating at 170 ° C. for 10 to 60 minutes.
【００２４】クリヤ塗料（Ｃ）：メタリック塗料（Ｂ）
の未硬化の、もしくは架橋硬化させてなる塗面に塗装す
る塗料であり、樹脂成分および溶剤を主成分とし、さら
に必要に応じて該塗膜の透明感を損なわない程度で着色
顔料およびその他の塗料用添加剤などを配合してなる無
色もしくは有色の透明塗膜を形成する液状塗料である。 Clear paint (C ): metallic paint (B)
Uncured, or a coating to be applied to a coated surface that has been cross-linked and cured, containing a resin component and a solvent as main components, and if necessary, a coloring pigment and other pigments to such an extent that the transparency of the coating film is not impaired. It is a liquid paint which forms a colorless or colored transparent coating film formed by blending paint additives and the like.
【００２５】クリヤ塗料（Ｃ）で使用する樹脂成分は熱
硬化性樹脂組成物が好ましく、具体的には架橋性官能基
を有するアクリル樹脂、ポリエステル樹脂、アルキド樹
脂、ウレタン樹脂などの基体樹脂を、メラミン樹脂、尿
素樹脂およびポリイソシアネ−ト化合物（ブロック体も
含む）などの架橋剤と併用したものがあげられ、そして
上記溶剤としては有機溶剤および／または水を使用する
ことができる。The resin component used in the clear paint (C) is preferably a thermosetting resin composition. Specifically, a base resin such as an acrylic resin, a polyester resin, an alkyd resin or a urethane resin having a crosslinkable functional group is used. Those used in combination with a crosslinking agent such as a melamine resin, a urea resin and a polyisocyanate compound (including a block body) can be mentioned, and as the solvent, an organic solvent and / or water can be used.
【００２６】クリヤ塗料（Ｃ）は、未硬化の、もしくは
架橋硬化させたメタリック塗料（Ｂ）の塗面に、静電塗
装、エア−スプレ−、エアレススプレ−などの方法で塗
装することができ、その膜厚は硬化塗膜に基いて１０〜
１００μｍの範囲内とするのが好ましい。該クリヤ塗料
（Ｃ）の塗膜それ自体は約１００〜約１７０℃の温度で
架橋硬化させることができる。The clear paint (C) can be applied to an uncured or crosslinked-cured metallic paint (B) by a method such as electrostatic coating, air spray, or airless spray. , Its film thickness is 10 to 10 based on the cured coating
It is preferable that the thickness be in the range of 100 μm. The coating of the clear paint (C) itself can be cross-linked and cured at a temperature of about 100 to about 170 ° C.
【００２７】本発明方法は、金属やプラスチックなどの
被塗物に直接、またはこれらの被塗物に下塗塗料（例え
ばカチオン電着塗料など）や中塗塗料（省略可能）など
を塗装し、硬化させてなる被塗物に着色ベ−ス塗料
（Ａ）を塗装し、該塗膜を架橋硬化させてから、または
未架橋硬化の該塗面に、メタリック塗料（Ｂ）を塗装
し、該塗膜を架橋硬化させてから、または未架橋硬化の
該塗面に、クリヤ塗料（Ｃ）を塗装し、ついで約１００
〜約１７０℃の温度で１０〜４０分間加熱して塗膜を硬
化させてなる、いわゆる、３コ−ト１ベイク方式（３Ｃ
１Ｂ）、３コ−ト２ベイク方式（３Ｃ２Ｂ）、および３
コ−ト３ベイク方式（３Ｃ３Ｂ）による塗装方法により
達成できる。In the method of the present invention, an undercoat paint (for example, a cationic electrodeposition paint) or an intermediate paint (optional) is applied directly to an object to be coated such as metal or plastic, or these objects to be cured. The coated base material is coated with a colored base paint (A) and the coating film is crosslinked and cured, or the uncrosslinked cured coating surface is coated with a metallic coating material (B). Is cross-linked and cured or the uncrosslinked-cured coated surface is coated with a clear paint (C),
A so-called three-coat one-bake method (3C) obtained by heating the coating at a temperature of about 170 ° C. for about 10 to 40 minutes to cure the coating.
1B), three-coat two-bake method (3C2B), and three
This can be achieved by a coating method using a coat 3 bake method (3C3B).
【００２８】また、本方法は、上記３Ｃ１Ｂ、３Ｃ２Ｂ
において、これらの工程における室温放置のいずれか一
方またはすべてを約５０〜約１００℃の温度での予備乾
燥と代替することもできる。この予備乾燥は、各塗膜の
ゲル分率が６０重量％以下にとどまる程度で実施するの
が好ましい。Further, the present method comprises the steps of 3C1B, 3C2B
In the above, any one or all of the standing at room temperature in these steps can be replaced with preliminary drying at a temperature of about 50 to about 100 ° C. This predrying is preferably carried out to such an extent that the gel fraction of each coating film is not more than 60% by weight.
【００２９】[0029]
【本発明の効果】着色ベ−ス塗料（特に、チタン白顔料
およびアルミニウムフレ−クを含む白色ベ−ス塗料が好
ましい）、フレ−ク状チタン白顔料を含むメタリック塗
料およびクリヤ塗料を順次塗装して、ち密で、しかも柔
らか（シルキ−）なパ−ル調もしくはメタリック調の複
層塗膜を形成させることが可能になった。According to the present invention, a colored base paint (particularly, a white base paint containing titanium white pigment and aluminum flake is preferable), a metallic paint containing flaky titanium white pigment and a clear paint are sequentially applied. As a result, it became possible to form a dense and soft (silky) multi-layer coating film having a pale or metallic tone.
【００３０】以下、本発明に関する実施例および比較例
について説明する。なお、部および％は原則として重量
が基準である。Examples and comparative examples according to the present invention will be described below. Parts and% are based on weight in principle.
【００３１】１．試 料 １）被塗物 脱脂およびりん酸亜鉛処理した鋼板（ＪＩＳＧ３１４
１、大きさ４００×３００×０．８ｍｍ）にカチオン電
着塗料（「エレクロン９４００ＨＢ」、関西ペイント
（株）製、商品名、エポキシ樹脂ポリアミン系カチオン
樹脂に硬化剤としてブロックポリイソシアネ−ト化合物
を使用したもの）を常法により膜厚２０μｍ（硬化塗膜
として）になるように電着塗装し、１７０℃で２０分加
熱して架橋硬化させてから、該電着塗面に、中塗塗料
（「ル−ガベ−ク中塗りグレ−」、関西ペイント（株）
製、商品名、ポリエステル樹脂・メラミン樹脂系、有機
溶剤型）を膜厚３０μｍ（硬化塗膜として）になるよう
に塗装し、１４０℃で３０分加熱して架橋硬化させた。1. Sample 1) Coated object Degreasing and zinc phosphate treated steel sheet (JIS G314
1. Cationic electrodeposition paint (“Elecron 9400HB”, manufactured by Kansai Paint Co., Ltd., trade name, epoxy resin polyamine-based cationic resin as a curing agent for block size polyisocyanate compound) Is applied by a conventional method so as to have a film thickness of 20 μm (as a cured coating film), and is heated at 170 ° C. for 20 minutes for crosslinking and curing. ("LuGabeque middle coating gray", Kansai Paint Co., Ltd.)
(Trade name, polyester resin / melamine resin type, organic solvent type) was applied so as to have a thickness of 30 μm (as a cured coating film), and was heated at 140 ° C. for 30 minutes to be crosslinked and cured.
【００３２】３）着色ベ−ス塗料（Ａ−１）〜（Ａ−
２） 水酸基含有アクリル樹脂およびメラミン樹脂からなる樹
脂成分１００重量部（固形分）あたり、チタン白顔料、
アルミニウムフレ−クおよびカ−ボンブラックを表１に
示す比率で配合してなる有機溶剤型塗料。3) Colored base paints (A-1) to (A-
2) Per 100 parts by weight (solid content) of a resin component comprising a hydroxyl group-containing acrylic resin and a melamine resin, a titanium white pigment,
An organic solvent-type paint comprising aluminum flakes and carbon black in the proportions shown in Table 1.
【００３３】[0033]
【表１】 [Table 1]
【００３４】＊１）水酸基含有アクリル樹脂：水酸基価
１１０ｍｇＫＯＨ／ｇ、数平均分子量２５０００。* 1) Hydroxyl group-containing acrylic resin: hydroxyl value 110 mgKOH / g, number average molecular weight 25,000.
【００３５】＊２）メラミン樹脂：ブチルエ−テル化メ
ラミン樹脂。* 2) Melamine resin: butyl etherified melamine resin.
【００３６】＊３）チタン白顔料：帝国化工製、ルチル
型酸化チタン顔料、粒径０．２５〜０．３０μｍ。* 3) Titanium white pigment: rutile type titanium oxide pigment, manufactured by Teikoku Chemicals, particle size 0.25 to 0.30 μm.
【００３７】＊４）アルミニウムフレ−ク：東洋アルミ
ニウム製、ノンリ−フィングアルミペ−スト、厚さ０．
２〜０．５μｍ、平均粒径は１０μｍ以下。* 4) Aluminum flake: non-leafing aluminum paste made of Toyo Aluminum, thickness of 0.
2 to 0.5 μm, average particle size is 10 μm or less.
【００３８】４）メタリック塗料（Ｂ−１） 水酸基含有アクリル樹脂＊５）７０部、メラミン樹脂＊
６）３０部およびフレ−ク状チタン白顔料（厚さは０．
２〜０．５μｍ、長手方向寸法は１０〜３０μｍ）８部
を配合してなる有機溶剤型塗料。固形分含有率２０％。4) Metallic paint (B-1) Hydroxyl-containing acrylic resin * 5) 70 parts, melamine resin *
6) 30 parts and a flake-like titanium white pigment (thickness is 0.
(2 to 0.5 μm, longitudinal dimension is 10 to 30 μm) 8 parts of an organic solvent type paint. Solid content 20%.
【００３９】＊５）水酸基含有アクリル樹脂：水酸基価
１００ｍｇＫＯＨ／ｇ、数平均分子量２００００。* 5) Hydroxyl group-containing acrylic resin: hydroxyl value 100 mgKOH / g, number average molecular weight 20,000.
【００４０】＊６）メラミン樹脂：メチル・ブチル混合
エ−テル化メラミン樹脂。* 6) Melamine resin: A mixed methyl / butyl etherified melamine resin.
【００４１】５）メタリック塗料（Ｂ−２） 水酸基含有アクリル樹脂＊５）７０部、メラミン樹脂＊
６）３０部、フレ−ク状チタン白顔料（厚さは０．２〜
０．５μｍ、長手方向寸法は１０〜３０μｍ）３部、フ
レ−ク状酸化アルミニウム（厚さ０．２〜０．５μｍ、
長手方向寸法１０〜３０μｍ）３部、酸化チタン被覆フ
レ−ク状雲母（厚さは０．２〜０．５μｍ、長手方向寸
法は１０〜３０μｍ）３部を配合してなる有機溶剤型塗
料。固形分含有率２０％。5) Metallic paint (B-2) Hydroxyl-containing acrylic resin * 5) 70 parts, melamine resin *
6) 30 parts, flaky titanium white pigment (thickness: 0.2 to
0.5 μm, longitudinal dimension is 10-30 μm) 3 parts, flake aluminum oxide (thickness 0.2-0.5 μm,
An organic solvent type paint comprising 3 parts of a longitudinal mica (10 to 30 μm) and 3 parts of a titanium oxide-coated flaky mica (0.2 to 0.5 μm in thickness, 10 to 30 μm in a longitudinal direction). Solid content 20%.
【００４２】６）メタリック塗料（Ｂ−３）比較用 水酸基含有アクリル樹脂＊５）７０部、メラミン樹脂＊
６）３０部およびホワイトマイカ（厚さは０．２〜０．
５μｍ、長手方向寸法は１０〜３０μｍ）８部を配合し
てなる有機溶剤型塗料。固形分含有率２０％。6) Metallic paint (B-3) Comparative hydroxyl-containing acrylic resin * 5) 70 parts, melamine resin *
6) 30 parts and white mica (thickness is 0.2-0.
An organic solvent-type coating composition comprising 8 parts of 5 μm and a longitudinal dimension of 10 to 30 μm. Solid content 20%.
【００４３】７）クリヤ塗料（Ｃ） 「ル−ガベ−ククリヤ−」、関西ペイント（株）製、商
品名、アクリル樹脂・アミノ樹脂系、有機溶剤型。7) Clear paint (C) "Lugabe clear", manufactured by Kansai Paint Co., Ltd., trade name, acrylic resin / amino resin, organic solvent type.
【００４４】２．実施例および比較例 被塗物の中塗塗面に、着色ベ−ス塗料（Ａ−１）〜（Ａ
−２）をミニベル型回転式静電塗装機で、温度２０℃、
湿度７５％で塗装した。塗装膜厚は１０μｍ（硬化塗膜
として）とした。この着色ベ−ス塗料の未硬化塗膜面
に、メタリック塗料（Ｂ−１）〜（Ｂ−３）をＲＥＡガ
ンを用い、温度２０℃、湿度７５％で塗装した。膜厚は
１０μｍ（硬化塗膜として）である。その後、該メタリ
ック塗料の未硬化塗膜面に、クリヤ塗料（Ｃ）を、ミニ
ベル型回転式静電塗装機を用いて温度２０℃、湿度７５
％で塗装した。塗装膜厚は２５μｍ（硬化塗膜として）
である。室内で３分放置してから、熱風循環式乾燥炉内
において１４０℃で３０分間加熱して、着色ベ−ス塗
料、メタリック塗料およびクリヤ塗料からなる３層の塗
膜を同時に架橋硬化せしめた。2. Examples and Comparative Examples Colored base paints (A-1) to (A)
-2) is a mini-bell type rotary electrostatic coating machine at a temperature of 20 ° C.
Painted at 75% humidity. The coating film thickness was 10 μm (as a cured coating film). Metallic paints (B-1) to (B-3) were applied to the uncured coating surface of this colored base paint at a temperature of 20 ° C. and a humidity of 75% using a REA gun. The film thickness is 10 μm (as a cured coating). Thereafter, the clear paint (C) was applied to the uncured coating surface of the metallic paint using a mini-bell type rotary electrostatic coater at a temperature of 20 ° C. and a humidity of 75 ° C.
% Painted. The coating thickness is 25μm (as cured coating)
It is. After leaving it indoors for 3 minutes, it was heated at 140 ° C. for 30 minutes in a circulating hot air drying oven to simultaneously crosslink and cure three layers of coatings consisting of a colored base paint, a metallic paint and a clear paint.
【００４５】３．性能試験結果 上記塗料の塗装工程および得られた複層塗膜の性能試験
結果を表２に示す。3. Performance Test Results Table 2 shows the coating process of the paint and the performance test results of the obtained multilayer coating film.
【００４６】[0046]
【表２】 [Table 2]
【００４７】表２における性能試験はいずれも目視判定
による結果であり、ち密感は塗面のパ−ル調模様が均一
かつ高密度であるかどうかを観察した結果であり、○は
均一でち密性良好、△は均一性およびち密性が劣る、×
は均一性およびち密性が非常に劣る を示す。光輝感は
塗膜のキラキラ感を観察した結果であり、○はキラキラ
感良好、△はキラキラ感が劣る、×はキラキラ感が非常
に劣る を示す。シルキ−パ−ル感では○は良好、△は
少し劣る、×は非常に劣る を示す。The performance tests in Table 2 are all based on the results of visual judgment. The tightness is a result of observing whether or not the pearl pattern on the painted surface is uniform and high density. Good, △: Poor uniformity and denseness, ×
Indicates very poor uniformity and compactness. The glittering feeling is a result of observing the glittering feeling of the coating film, ○ indicates good glittering feeling, Δ indicates poor glittering feeling, and X indicates very poor glittering feeling. In the silky par feeling, ○ indicates good, Δ indicates slightly poor, and × indicates very poor.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０９Ｄ 5/00 Ｃ０９Ｄ 5/00 Ｅ 5/38 5/38 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C09D 5/00 C09D 5/00 E 5/38 5/38
Claims (8)
白顔料を含むメタリック塗料（Ｂ）およびクリヤ塗料
（Ｃ）を塗装することを特徴とする複層塗膜形成法。1. A method for forming a multilayer coating film, which comprises applying a colored base paint (A), a metallic paint (B) containing a flaky titanium white pigment, and a clear paint (C).
（Ｂ）およびクリヤ塗料（Ｃ）を塗装を順次塗装し、つ
いで加熱して上記３層の塗膜を同時に架橋硬化せしめる
３コ−ト１ベイク方式である請求項１記載の複層塗膜形
成法。2. A three-coating method in which a colored base coating material (A), a metallic coating material (B) and a clear coating material (C) are sequentially applied and then heated to cross-link and cure the three coating films simultaneously. 2. The method for forming a multilayer coating film according to claim 1, wherein the method is a one-bake method.
顔料とアルミニウムフレ−クを含有する白色ベ−ス塗料
である請求項１記載の複層塗膜形成法。3. The method according to claim 1, wherein the colored base paint (A) is a white base paint containing a powdery titanium white pigment and aluminum flake.
（Ｂ）の塗膜との合計硬化膜厚が４０μｍ以下である請
求項３記載の複層塗膜形成法。4. The method according to claim 3, wherein the total cured film thickness of the coating film of the white base paint and the coating film of the metallic paint (B) is 40 μm or less.
００重量部あたりアルミニウムフレ−クが０．３〜１０
重量部である請求項３記載の複層塗膜形成法。5. A white base paint, comprising titanium white pigment 1
0.3 to 10 aluminum flakes per 100 parts by weight
The method for forming a multilayer coating film according to claim 3, which is in parts by weight.
００重量部あたりアルミニウムフレ−クの配合比率が１
〜５重量部である請求項３記載の複層塗膜形成法。6. A white base paint, comprising titanium white pigment 1
The mixing ratio of aluminum flake is 1 per 100 parts by weight.
The method according to claim 3, wherein the amount is from 5 to 5 parts by weight.
ン白顔料、およびフレ−ク状酸化アルミニウムおよび
（または）フレ−ク状雲母を含有する塗料である請求項
１記載の複層塗膜形成法。7. The multi-layer paint according to claim 1, wherein the metallic paint (B) is a paint containing flaky titanium white pigment and flaky aluminum oxide and / or flaky mica. Film formation method.
複層塗膜形成法。8. The method according to claim 1, wherein the object to be coated is an automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16979497A JPH1110081A (en) | 1997-06-26 | 1997-06-26 | Formation of double layer coating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16979497A JPH1110081A (en) | 1997-06-26 | 1997-06-26 | Formation of double layer coating film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1110081A true JPH1110081A (en) | 1999-01-19 |
Family
ID=15893016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16979497A Pending JPH1110081A (en) | 1997-06-26 | 1997-06-26 | Formation of double layer coating film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1110081A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224614A (en) * | 2001-02-02 | 2002-08-13 | Nippon Paint Co Ltd | Method of forming multilayer coating film and multilayer coating film |
| WO2003046089A3 (en) * | 2001-11-29 | 2004-05-06 | Honda Canada Inc | White pigment for use in formulations including white pearlescent paint |
| JP2006263568A (en) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | Method for forming golden coating film and golden coating film |
| JP2006263569A (en) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | Method for forming black pearl color coating film and black pearl color coating film |
-
1997
- 1997-06-26 JP JP16979497A patent/JPH1110081A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224614A (en) * | 2001-02-02 | 2002-08-13 | Nippon Paint Co Ltd | Method of forming multilayer coating film and multilayer coating film |
| US7064159B2 (en) | 2001-11-29 | 2006-06-20 | Honda Canada Inc. | Pearlescent white paint composition containing a film-former and a solid material comprising mica, titanium dioxide and aluminum, and process for using same |
| GB2397066A (en) * | 2001-11-29 | 2004-07-14 | Honda Canada Inc | White pigment for use in formulations including white pearlescent paint |
| GB2411173A (en) * | 2001-11-29 | 2005-08-24 | Honda Canada Inc | A process of forming a finished paint coating of a predetermined colour |
| GB2411173B (en) * | 2001-11-29 | 2005-11-30 | Honda Canada Inc | A process of forming a finished paint coating of a predetermined colour |
| GB2397066B (en) * | 2001-11-29 | 2006-03-22 | Honda Canada Inc | Pearlescent white paint formulations |
| WO2003046089A3 (en) * | 2001-11-29 | 2004-05-06 | Honda Canada Inc | White pigment for use in formulations including white pearlescent paint |
| CN100340622C (en) * | 2001-11-29 | 2007-10-03 | 本田加拿多有限公司 | White pigment for use in formulations including white pearlescent paint |
| US7314649B2 (en) | 2001-11-29 | 2008-01-01 | Honda Canada, Inc. | White pigment for use in formulations including white pearlescent paint |
| US7404987B2 (en) | 2001-11-29 | 2008-07-29 | Honda Motor Co., Ltd. | White pearlescent paint compositions and coatings |
| JP2006263568A (en) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | Method for forming golden coating film and golden coating film |
| JP2006263569A (en) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | Method for forming black pearl color coating film and black pearl color coating film |
| JP4553198B2 (en) * | 2005-03-23 | 2010-09-29 | トヨタ自動車株式会社 | Method for forming golden coating film and golden coating film |
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