JPH02119978A - Method for metallic coating of automobile - Google Patents
Method for metallic coating of automobileInfo
- Publication number
- JPH02119978A JPH02119978A JP27398388A JP27398388A JPH02119978A JP H02119978 A JPH02119978 A JP H02119978A JP 27398388 A JP27398388 A JP 27398388A JP 27398388 A JP27398388 A JP 27398388A JP H02119978 A JPH02119978 A JP H02119978A
- Authority
- JP
- Japan
- Prior art keywords
- coated film
- fluororesin
- metallic
- clear
- coating 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.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 75
- 239000011248 coating agent Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004018 waxing Methods 0.000 abstract description 6
- 238000004070 electrodeposition Methods 0.000 abstract description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 abstract description 3
- 125000004181 carboxyalkyl group Chemical group 0.000 abstract description 2
- 229920006026 co-polymeric resin Polymers 0.000 abstract description 2
- 229910052731 fluorine Inorganic materials 0.000 abstract description 2
- 125000001153 fluoro group Chemical group F* 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract description 2
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 27
- 229920000877 Melamine resin Polymers 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000004925 Acrylic resin Substances 0.000 description 8
- 229920000178 Acrylic resin Polymers 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 7
- 239000000049 pigment Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 4
- 239000004640 Melamine resin Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 229910021579 Iron(II) iodide Inorganic materials 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 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
- 238000004132 cross linking Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- -1 for example Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- BQZGVMWPHXIKEQ-UHFFFAOYSA-L iron(ii) iodide Chemical compound [Fe+2].[I-].[I-] BQZGVMWPHXIKEQ-UHFFFAOYSA-L 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000000007 visual effect 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］ 本発明は自動車のメタリック塗装法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for metallic coating of automobiles.
［従来の技術・発明が解決しようとする課題］従来の自
動車ボデーなどのメタリック塗装においては、鋼板上に
電着塗膜、必要に応じて中塗塗膜を形成し、そのうえに
アルミニウムフレークおよび着色顔料を含有するメラミ
ンアクリル樹脂系などの塗料を塗布してメタリックベー
ス塗膜を形成し、さらにそのうえに着色顔料を実質的に
含有しないメラミンアクリル樹脂系などのクリヤー塗料
を塗布してクリヤー塗膜を形成している。[Conventional technology/issues to be solved by the invention] In conventional metallic painting for automobile bodies, etc., an electrodeposited film and, if necessary, an intermediate coat are formed on a steel plate, and then aluminum flakes and colored pigments are applied. A metallic base coating film is formed by applying a paint containing melamine acrylic resin, etc., and then a clear coating film is formed by applying a clear coating such as a melamine acrylic resin resin containing substantially no coloring pigment. There is.
しかしながら、従来のメタリック塗装においては、汚染
を防止し、艶や撥水性を維持するためには定期的にワッ
クスがけをすることが必須である。However, conventional metallic coatings require regular waxing to prevent staining and maintain gloss and water repellency.
また近年自動車のメタリック塗装においてはユーザーの
ニーズの多様化に伴なって意匠性の高い塗装が要求され
るようになってきているが、従来のメタリック塗装では
必らずしもクリヤー感（深みのある光沢色）が充分でな
い。In addition, in recent years, with the diversification of user needs, there has been a demand for highly decorative automotive metallic paints, but conventional metallic paints do not necessarily have a clear feel (deep some glossy colors) are not sufficient.
さらに従来のメタリック塗装においてキラキラする光輝
感をうるために粒径の大きなアルミニウムフレークを使
用すると、クリヤー塗膜の厚さが塗料樹脂の性質上一般
に採用されている２５μｍ程度であるばあい、クリヤー
塗膜表面に凹凸が生じ、かえって光沢が低下し、外観仕
上品質が劣るものとなる。Furthermore, if aluminum flakes with a large particle size are used in conventional metallic coatings to achieve a sparkling shine, if the thickness of the clear coating film is about 25 μm, which is generally used due to the properties of the paint resin, the clear coating will not work properly. Irregularities occur on the surface of the film, resulting in a decrease in gloss and poor quality in appearance.
本発明は前記の点に鑑みて、ワックスがけが不要で、か
つ従来のメタリック塗装では到達しえないレベルのクリ
ヤー感、光輝感のあるメタリック塗装を提供せんとする
ものである。In view of the above points, it is an object of the present invention to provide a metallic coating that does not require waxing and has a level of clearness and brightness that cannot be achieved with conventional metallic coatings.
［課題を解決するための手段］
本発明は、下地塗膜上にメタリックベース塗膜およびク
リヤー塗膜を形成する自動車のメタリック塗装において
、前記クリヤー塗膜上にさらにフッ素樹脂のクリヤー塗
膜を形成することを特徴とする自動車のメタリック塗装
法に関する。[Means for Solving the Problems] The present invention provides metallic coating for automobiles in which a metallic base coating film and a clear coating film are formed on a base coating film, in which a clear coating film of fluororesin is further formed on the clear coating film. The present invention relates to a metallic coating method for automobiles, which is characterized by:
［実施例］ つぎに本発明の方法を図面に基づいて説明する。[Example] Next, the method of the present invention will be explained based on the drawings.
第１図は本発明の方法の一実施例を示す塗装の概略断面
図である。FIG. 1 is a schematic sectional view of painting showing an embodiment of the method of the present invention.
第１図においては、（１）は鋼板パネルであり、鋼板パ
ネル（１）上に従来法と同様に電着塗膜（２）、中塗装
膜（３）、メタリックベース塗膜（４）およびクリヤー
塗膜（５）（以下、従来のクリヤー塗膜をメタリックク
リヤー塗膜（５）という）を順次形成する。本発明にお
いては、このメタリッククリヤー塗膜（９上にさらにフ
ッ素樹脂のクリヤー塗膜（６）を形成する。In Figure 1, (1) is a steel plate panel, and on the steel plate panel (1), as in the conventional method, an electrodeposited coating (2), an intermediate coating (3), a metallic base coating (4) and A clear coating film (5) (hereinafter, a conventional clear coating film will be referred to as a metallic clear coating film (5)) is sequentially formed. In the present invention, a fluororesin clear coating film (6) is further formed on this metallic clear coating film (9).
このように本発明はメタリック塗装のクリヤー塗膜を２
層化し、かつそのトップコートをフッ素樹脂クリヤーと
することを特徴とするものである。In this way, the present invention has two clear coating films for metallic coating.
It is characterized in that it is layered and its top coat is a fluororesin clear.
かかる構成により、つぎのごとき効果が奏される。This configuration provides the following effects.
トップコートがフッ素樹脂のクリヤー塗膜であるため、
その高耐候性、高撥水性、高耐汚染性によりワックスが
けをしなくとも艶や撥水性を維持することができ、いわ
ゆるワックスメンテナンスフリーのメタリック塗装かえ
られる。Because the top coat is a fluororesin clear coating,
Due to its high weather resistance, high water repellency, and high stain resistance, it can maintain gloss and water repellency without waxing, making it a so-called wax maintenance-free alternative to metallic paint.
従来のメタリッククリヤー塗膜上にフッ素樹脂のクリヤ
ー塗膜を設けることにより、高度なりリヤー感のある外
観品質のすぐれたメタリック塗装かえられる。By providing a fluororesin clear coating on top of the conventional metallic clear coating, it is possible to replace the metallic coating with an excellent appearance quality with a high degree of rear feel.
キラキラ感のある光輝感をうるために粒径の大きなアル
ミニウムフレークをメタリッククリヤー塗膜に使用して
凹凸が発生したとしてもフッ素樹脂クリヤー塗膜でカバ
ーできるので、外観品質を低下させることなく高光輝感
のメタリック塗装かえられる。In order to achieve a sparkling and shiny appearance, aluminum flakes with a large particle size are used in the metallic clear coating, and even if irregularities occur, they can be covered with the fluororesin clear coating, resulting in high brilliance without degrading the appearance quality. The metallic paint can be changed.
従来のメタリック塗装のクリヤー塗膜のうえにフッ素樹
脂クリヤー塗膜を設けるだけであるから、従来のメタリ
ック塗装法を存続させることができ、必要に応じて使い
わけできるので生産性の点からも宵利である。Since the fluororesin clear coating film is simply applied on top of the clear coating film of the conventional metallic coating, the conventional metallic coating method can be maintained and can be used differently as needed, making it easy to use from a productivity standpoint. It is advantageous.
フッ素樹脂クリヤー塗膜の形成に用いるフッ素樹脂塗料
としては塗装性などの点から溶剤可溶性のフッ素樹脂か
らなる塗料、なかんづく焼付はタイプの塗料が好ましく
用いられる。As the fluororesin paint used for forming the fluororesin clear coating, a paint made of a solvent-soluble fluororesin, especially a baking type paint, is preferably used from the viewpoint of paintability.
前記フッ素樹脂としては、塗装性と共に耐候性、撥水性
、耐汚染性、透明性、下層塗膜との密着性などがすぐれ
ている点から、一般式（１）および（■）：
Ｘ ０Ｒ（１）
［１１）（式中、Ｘはフッ素原子、塩素
原子またはトリフルオロメチル基を、Ｒは水素原子、ヒ
ドロキシアルキル基、カルボキシアルキル基またはアル
キル基を意味する）で表わされる２種の繰返し単位から
なる共重合樹脂（平均分子量２×１０３〜ｌＸＩＯ３程
度）が好ましく用いられる。The fluororesin has general formulas (1) and (■): X 0R( 1)
[11) Consisting of two types of repeating units represented by (wherein, A copolymer resin (average molecular weight of about 2 x 103 to 1XIO3) is preferably used.
とくに繰返し単位（Ｉ）におけるＲが水素原子、ヒドロ
キシアルキル基またはカルボキシアルキル基である架橋
タイプの共重合フッ素樹脂が好ましい。Particularly preferred is a crosslinked copolymer fluororesin in which R in the repeating unit (I) is a hydrogen atom, a hydroxyalkyl group, or a carboxyalkyl group.
前記架橋タイプのフッ素樹脂の架橋剤としてはポリイソ
シアネート、ブロックポリイソシアネート、メラミン樹
脂などが用いられる。架橋剤はフッ素樹脂１００重量部
に対して３〜１７重量部程度用いられる。As the crosslinking agent for the crosslinking type fluororesin, polyisocyanate, block polyisocyanate, melamine resin, etc. are used. The crosslinking agent is used in an amount of about 3 to 17 parts by weight per 100 parts by weight of the fluororesin.
非架橋タイプのフッ素樹脂としては前記のもの以外に、
フッ化ビニリデン樹脂、フッ化ビ二ル樹脂などが使用で
きる。In addition to the above-mentioned non-crosslinked fluororesins,
Vinylidene fluoride resin, vinyl fluoride resin, etc. can be used.
非架橋タイプのフッ素樹脂は硬化性樹脂と併用するのが
好ましい。硬化性樹脂としては、たとえばメラミン樹脂
、イソシアネート系樹脂などが使用できる。併用するば
あい、硬化性樹脂はフッ素樹脂１００重量部に対してｌ
Ｏ〜１５重量部程度用いられる。It is preferable to use a non-crosslinked type fluororesin in combination with a curable resin. As the curable resin, for example, melamine resin, isocyanate resin, etc. can be used. When used together, the amount of curable resin is 1 per 100 parts by weight of fluororesin.
About 0 to 15 parts by weight is used.
前記の成分以外に塗装作業性や塗膜劣化防止を目的とし
て分散剤（沈殿防止剤）、硬化剤、硬化促進剤、タレ防
１１−剤、紫外線吸収剤などの添加剤を適宜配合しても
よい。In addition to the above ingredients, additives such as dispersants (preventing agents), curing agents, curing accelerators, anti-sagging agents, and ultraviolet absorbers may be added as appropriate for the purpose of improving painting workability and preventing paint film deterioration. good.
前記フッ素樹脂、必要に応じて架橋剤、その他の添加剤
を溶剤に溶解して固形分濃度３５〜６０％（重量％、以
下同様）程度、粘度２０〜２３秒（フォードカップＰｃ
＃４）程度の塗料を調製する。The fluororesin, crosslinking agent and other additives as necessary are dissolved in a solvent to obtain a solid content of about 35 to 60% (weight %, the same applies hereinafter) and a viscosity of 20 to 23 seconds (Ford Cup Pc).
Prepare a paint of #4).
溶剤としてはキシレン、メチルイソブチルケトン、ｎ−
ブタノールなどを適宜混合して使用できる。Solvents include xylene, methyl isobutyl ketone, n-
Butanol etc. can be appropriately mixed and used.
本発明においては、前記フッ素樹脂塗料を従来のメタリ
ック塗装のメタリッククリヤー塗膜上にドライ・オン・
ウェットで塗布し、ついで１３５〜１４５℃程度の温度
で１４〜１８分間程度焼付は乾燥して厚さ１５〜３０加
程度のフッ素樹脂クリヤー塗膜を形成する。フッ素樹脂
クリヤー塗膜の厚さが１５．より小さいと、高度なりリ
ヤー感がえられがた＜、３０１！ｍより大きくてもそれ
以上の性能向上が期待しえない。In the present invention, the fluororesin paint is applied in a dry-on manner onto the metallic clear coating of conventional metallic coating.
It is applied wet and then baked at a temperature of about 135 to 145° C. for about 14 to 18 minutes and dried to form a fluororesin clear coating film with a thickness of about 15 to 30 mm. The thickness of the fluororesin clear coating is 15. If it is smaller, you can get a sense of altitude and rear feeling.<, 301! Even if it is larger than m, no further performance improvement can be expected.
本発明において前記フッ素樹脂クリヤー塗膜を設ける下
層塗膜の形成は従来のメタリック塗装と同様にすればよ
い。In the present invention, the formation of the underlayer coating film on which the fluororesin clear coating film is provided may be carried out in the same manner as in conventional metallic coatings.
たとえば、鋼板パネルを電着塗料で塗装したのち焼付け
て電着塗膜を形成し、必要に応じて中塗塗料を塗布し焼
付けて中塗塗膜を形成し、その上にメタリックベース塗
料を乾燥後厚さ１０〜１５虜で塗布し、さらにメタリッ
ククリヤー塗料を乾燥後厚さ２０〜２５１！ｍ程度でウ
ェット・オン・ウェットで塗布し、ついで焼付乾燥する
。For example, a steel plate panel is painted with an electrodeposition paint and then baked to form an electrodeposition film, and if necessary, an intermediate coating is applied and baked to form an intermediate coating, and then a metallic base paint is applied on top of that after drying. Apply with a thickness of 10 to 15 cm, and then apply metallic clear paint to a thickness of 20 to 251 cm after drying! It is applied wet-on-wet at a thickness of about 300 yen, and then baked to dry.
メタリックベース塗料としては、たとえばメラミンアク
リル樹脂系、ポリエステル樹脂系、非水分散型アクリル
樹脂系のものなどが用いられ、アルミニウムフレークな
どのメタリック顔料と着色顔料が配合される。メタリッ
ク顔料は塗料固形分に対して５〜３０％程度、着色顔料
は塗料固形分に対して０．１〜１０％程度の割合で用い
られる。アルミニウムフレークとしては通常の光輝感を
うるばあいには平均粒径１５〜２５−程度のものが用い
られ、とくにキラキラした光輝感を所望するばあいには
平均粒径２５〜３５ｕｍのものが使用される。このよう
に粒径の大きなアルミニウムフレークを用いてもフッ素
樹脂クリヤー塗膜を設けるため、従来法におけるクリヤ
ー塗膜表面の凹凸に起因する光沢低下などの不具合が生
じない。As the metallic base paint, for example, a melamine acrylic resin type, a polyester resin type, a non-aqueous dispersion type acrylic resin type, etc. are used, and a metallic pigment such as aluminum flakes and a coloring pigment are blended. The metallic pigment is used in an amount of about 5 to 30% based on the solid content of the paint, and the colored pigment is used in a proportion of about 0.1 to 10% based on the solid content of the paint. As aluminum flakes, those with an average particle size of about 15 to 25 um are used when a normal glittering feeling is desired, and those with an average particle size of about 25 to 35 um are used when a particularly sparkling glittering feeling is desired. be done. Since a fluororesin clear coating film is provided even when aluminum flakes with large particle diameters are used, problems such as reduced gloss caused by unevenness on the surface of the clear coating film in conventional methods do not occur.
メタリッククリヤー塗料としては、たとえばメラミンア
クリル樹脂系、非水分散型アクリル樹脂系などのものが
用いられる。As the metallic clear paint, for example, a melamine acrylic resin type, a non-aqueous dispersion type acrylic resin type, etc. are used.
本発明の方法は自動車ボデーや自動車用外装部品のメタ
リック塗装に好適に使用される。The method of the present invention is suitably used for metallic coating of automobile bodies and automobile exterior parts.
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１
厚さ２０ρの電着塗膜を設けた鋼板試験片りに、メラミ
ンアルキド樹脂系中塗塗料を用いて厚さ２５屡の中塗塗
膜を設けた。Example 1 A steel plate test piece provided with an electrodeposited coating film having a thickness of 20 ρ was coated with an intermediate coating film having a thickness of 25 times using a melamine alkyd resin intermediate coating paint.
前記中塗塗膜上に、固形分に対してアルミニウムフレー
ク（平均粒径２０μｍ）を２０％およびフタロシアニン
ブルーを５％含有するメラミンアクリル樹脂系溶剤型メ
タリックベース塗料を乾燥後厚さが１５遍となるように
スプレー塗布し、そのうえにメラミンアクリル樹脂系溶
剤型クリヤー塗料を乾燥後厚さが２５遍となるようにウ
ェット・オン・ウェットでスプレー塗布し、ついで１４
０℃×１８分で焼付けた。On the intermediate coating film, a melamine acrylic resin solvent-based metallic base paint containing 20% aluminum flakes (average particle size 20 μm) and 5% phthalocyanine blue based on the solid content is applied to a thickness of 15 coats after drying. On top of that, a melamine acrylic resin solvent-based clear paint was applied wet-on-wet to a thickness of 25 cm after drying, and then 14 cm
Baking was performed at 0°C for 18 minutes.
前記クリヤー塗膜上に下記フッ素樹脂塗料を乾燥後厚さ
が２５屡になるようにスプレー塗布し、ついで１４０℃
Ｘ１８分で焼付けた。The following fluororesin paint was spray-coated on the clear coating film to a thickness of 25 cm after drying, and then heated at 140°C.
Baked for 18 minutes.
フッ素樹脂
種類：繰返し単位（１）におけるＸがフッ素原子で、繰
返し単位側）におけるＲがヒドロキシアルキル基である
共重合フッ素樹
固形分に対する割合ニア０％
架 橋 剤
種類ニブロックポリイソシアネート
固形分に対する割合１０％
固形分濃度：５５％
溶剤組成：キシレン／メチルイソブチ
ルケトン−１７３容量比
粘度：２２秒（ＦｅＩ４）
比較例１
フッ素樹脂クリヤー塗膜を設けなかったほかは実施例１
と同様にしてメタリック塗装試験片をえた。Fluororesin type: X in the repeating unit (1) is a fluorine atom, and R in the repeating unit side) is a hydroxyalkyl group. Ratio to the solid content of the copolymerized fluororesin is near 0%. Crosslinking agent type: Based on the solid content of the niblock polyisocyanate. Ratio: 10% Solid content concentration: 55% Solvent composition: xylene/methyl isobutyl ketone-173 Volume specific viscosity: 22 seconds (FeI4) Comparative example 1 Example 1 except that a fluororesin clear coating was not provided
Metallic painted test pieces were obtained in the same manner as above.
実施例２
メタリックベース塗料におけるアルミニウムフレークと
して平均粒径３０Ｉのものを使用したほかは実施例１と
同様にしてメタリック塗装試験片をえた。Example 2 A metallic painted test piece was obtained in the same manner as in Example 1, except that aluminum flakes with an average particle size of 30I were used in the metallic base paint.
比較例２
メタリックベース塗料におけるアルミニウムフレークと
して平均粒径３０μｍのものを用い、かつフッ素樹脂ク
リヤー塗膜を形成しなかったほかは実施例１と同様にし
てメタリック塗装試験片をえた。Comparative Example 2 A metallic painted test piece was obtained in the same manner as in Example 1, except that aluminum flakes with an average particle size of 30 μm were used in the metallic base paint, and a fluororesin clear coating was not formed.
実施例１〜２および比較例１〜２でえられた塗装試験片
について、メタリック感および２年間の曝露試験後の塗
膜耐久性［光沢保持率、撥水性（接触角測定）および耐
汚染性（水性、油性マジック）］を調べた。Regarding the painted test pieces obtained in Examples 1 and 2 and Comparative Examples 1 and 2, the metallic feel and the coating film durability after a two-year exposure test [gloss retention, water repellency (contact angle measurement) and stain resistance] (water-based, oil-based marker)].
メタリック感は目視観察によりつぎの基準にしたがって
判定した。The metallic feel was determined by visual observation according to the following criteria.
優・・・・・・メタル輝度を非常に強く感じる。Excellent: Metal brightness is felt very strongly.
良・・・・・・メタル輝度を強く感じる。Good: Metal brightness is felt strongly.
可・・・・・・メタル輝度が劣る。Fair...Metal brightness is poor.
耐汚染性はつぎの基準によって判定した。The stain resistance was judged according to the following criteria.
Ｏ・・・・・・容易に除去できる。O: Can be easily removed.
Δ・・・・・・除去が容易でない。Δ: Not easy to remove.
×・・・・・・完全には除去できない。×...Cannot be completely removed.
結果を第１表に示す。The results are shown in Table 1.
実施例３〜４
フッ素樹脂塗料をつぎのものに変更したほかは実施例１
と同様にしてメタリック塗装試験片をえた。Examples 3-4 Example 1 except that the fluororesin paint was changed to the following.
Metallic painted test pieces were obtained in the same manner as above.
フッ素樹脂
種類：ポリフッ化ビニリデン（実施例３）またはポリフ
ッ化ビニル（実施例４）
固形分に対する割合ニア０％
硬化性樹脂
種類：メラミン樹脂
固形分に対する割合：１０％
固形分濃度：５５％
溶剤組成：キシレン／ｎ−ブタノール−１／３容量比
粘度＝２２秒（ＦｅＩ２）
前記実施例３〜４でえられた塗装試験片はメタリック感
、塗膜耐久性のすぐれたものであった。Type of fluororesin: Polyvinylidene fluoride (Example 3) or polyvinyl fluoride (Example 4) Ratio to solid content is near 0% Type of curable resin: Melamine resin Ratio to solid content: 10% Solid content concentration: 55% Solvent composition : xylene/n-butanol-1/3 volume specific viscosity = 22 seconds (FeI2) The coated test pieces obtained in Examples 3 and 4 had excellent metallic feel and coating film durability.
［発明の効果］
従来のメタリック塗装のクリヤー塗膜上にフッ素樹脂の
クリヤー塗膜を設けることにより、ワックスがけが不要
であり、かつ従来では到達しえないレベルのクリヤー感
、光輝感のあるメタリック塗装かえられる。[Effects of the invention] By providing a fluororesin clear coating film on top of the clear coating film of conventional metallic coatings, waxing is unnecessary and a metallic finish with a level of clearness and shine that cannot be achieved with conventional methods. The paint can be changed.
第１図は本発明のメタリック塗装法の一実施例を示す塗
装の概略断面図である。
（図面の主要符号）
（１）：鋼板パネル
（４）：メタリックベース塗膜
（５）：メタリッククリヤー塗膜
（６）：フッ素樹脂クリヤー塗膜FIG. 1 is a schematic sectional view of a coating showing an embodiment of the metallic coating method of the present invention. (Main symbols in the drawing) (1): Steel plate panel (4): Metallic base coating (5): Metallic clear coating (6): Fluororesin clear coating
Claims (1)
塗膜を形成する自動車のメタリック塗装において、前記
クリヤー塗膜上にさらにフッ素樹脂のクリヤー塗膜を形
成することを特徴とする自動車のメタリック塗装法。1. A method for metallic coating an automobile, which comprises forming a metallic base coating film and a clear coating film on a base coating film, the method comprising further forming a fluororesin clear coating film on the clear coating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27398388A JPH02119978A (en) | 1988-10-29 | 1988-10-29 | Method for metallic coating of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27398388A JPH02119978A (en) | 1988-10-29 | 1988-10-29 | Method for metallic coating of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02119978A true JPH02119978A (en) | 1990-05-08 |
Family
ID=17535300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27398388A Pending JPH02119978A (en) | 1988-10-29 | 1988-10-29 | Method for metallic coating of automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02119978A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01151978A (en) * | 1987-12-08 | 1989-06-14 | Nissan Motor Co Ltd | Automotive coating method |
| JPH01218665A (en) * | 1988-02-26 | 1989-08-31 | Kansai Paint Co Ltd | Metallic finishing |
| JPH01281175A (en) * | 1988-01-20 | 1989-11-13 | Nippon Paint Co Ltd | Formation of protective film |
| JPH01297177A (en) * | 1988-05-26 | 1989-11-30 | Kansai Paint Co Ltd | Method for metallic coat finishing |
| JPH01304161A (en) * | 1988-06-01 | 1989-12-07 | Kansai Paint Co Ltd | Touching up method |
-
1988
- 1988-10-29 JP JP27398388A patent/JPH02119978A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01151978A (en) * | 1987-12-08 | 1989-06-14 | Nissan Motor Co Ltd | Automotive coating method |
| JPH01281175A (en) * | 1988-01-20 | 1989-11-13 | Nippon Paint Co Ltd | Formation of protective film |
| JPH01218665A (en) * | 1988-02-26 | 1989-08-31 | Kansai Paint Co Ltd | Metallic finishing |
| JPH01297177A (en) * | 1988-05-26 | 1989-11-30 | Kansai Paint Co Ltd | Method for metallic coat finishing |
| JPH01304161A (en) * | 1988-06-01 | 1989-12-07 | Kansai Paint Co Ltd | Touching up method |
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