JPS6051869B2 - Color matching easy painting method - Google Patents
Color matching easy painting methodInfo
- Publication number
- JPS6051869B2 JPS6051869B2 JP9091980A JP9091980A JPS6051869B2 JP S6051869 B2 JPS6051869 B2 JP S6051869B2 JP 9091980 A JP9091980 A JP 9091980A JP 9091980 A JP9091980 A JP 9091980A JP S6051869 B2 JPS6051869 B2 JP S6051869B2
- Authority
- JP
- Japan
- Prior art keywords
- paint
- curing agent
- resin
- paste
- 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.)
- Expired
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明の塗装方法、殊に鉄系部品のような金属部品と有
機材料部品に別々に塗装を行なう場合のカラーマッチン
グ容易な塗装方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating method, particularly to a coating method that facilitates color matching when separately coating metal parts such as iron-based parts and organic material parts.
近年、自動車等においては、その軽量化のために、サン
ルーフ、フエンダー、ノーズパネル、バンパー等に有機
材料が使用される傾向にある。これら有機材料部品は、
最終的には、鉄系材料又は他の金属材料で製作される車
体に組付けられるため、車体の塗装にマッチした色彩で
塗装せねばならない。一般に、車体等の金属部品には、
塗膜形成樹脂と顔料の混合物に硬化剤を添加して形成し
た高温硬化性の塗料を用い、塗布後に該部品を加熱して
塗料被膜を硬化させる塗装方法が採用されている。しか
し、有機材料部品は、塗料被膜を硬化させるためのこの
加熱処理に耐えることができないので、塗料は、金属部
品に用いられているものとは異なるものを調整して用い
ている。（特開昭５２−１４５４４３号公報参照）すな
わち、塗膜形成樹脂と硬化剤とを、低温硬化性塗料の形
成にとつて望ましいものから選定し、これにカラーマッ
チングのできる顔料を加えるものであるが、塗膜形成ノ
樹脂自体の色が、金属部品用の塗料の場合と異ること、
顔料の調整及び分散度の差による色変りが大きいことな
どの理由から、カラーマッチングはきわめて困難であつ
た。本発明は、このような従来の塗装方法におけるク問
題を解決し、カラーマッチングの容易な塗装方法を提供
することを目的とするもので、その特徴とするところは
、塗料形成樹脂と顔料を含む塗料ペーストを用意し、同
一の塗料ペーストから、一部にはメラミン樹脂系硬化剤
を添加して高温硬化型塗料を形成し、他の一部にはイソ
シアネート系硬化剤を添加して低温硬化型塗料を形成し
、高温硬化型塗料を金属部品に塗布して加熱硬化させ、
低温硬化型塗料を有機材料部品に塗布して乾燥させるこ
とにより塗膜を形成することにある。In recent years, in order to reduce the weight of automobiles, organic materials have been used for sunroofs, fenders, nose panels, bumpers, and the like. These organic material parts are
Since it will ultimately be assembled into a car body made of iron-based materials or other metal materials, it must be painted in a color that matches the paint of the car body. Generally, for metal parts such as car bodies,
A coating method has been adopted in which a high-temperature curable paint formed by adding a curing agent to a mixture of a paint film-forming resin and a pigment is used, and the part is heated after application to harden the paint film. However, since organic parts cannot withstand this heat treatment to harden the paint film, a different paint is used than that used for metal parts. (Refer to Japanese Unexamined Patent Publication No. 52-145443) In other words, a coating film-forming resin and a curing agent are selected from among those desirable for forming a low-temperature curing paint, and a pigment capable of color matching is added thereto. However, the color of the resin itself that forms the coating film is different from that of the paint for metal parts.
Color matching has been extremely difficult due to large color changes due to differences in pigment adjustment and dispersion. The present invention aims to solve the problems of conventional painting methods and provide a painting method that facilitates color matching. Prepare a paint paste, and from the same paint paste, add a melamine resin curing agent to some parts to form a high temperature curing type paint, and to the other part add an isocyanate type curing agent to form a low temperature curing type paint. Form the paint, apply the high temperature curing paint to the metal parts and heat cure it,
The purpose is to form a coating film by applying a low-temperature curing paint to an organic material part and drying it.
以下、本発明の実施例を図について説明すると、金属部
品は、板金工程１から化成処理電番工程２を経てシーラ
ー及び中塗工程３に送られ、ここから上塗工程４及び焼
付工程５を通つて塗装被膜が形成される。有機材料部品
は、成形工程６から前処理工程７プライマー及びシーラ
ー塗布工程８を経て、上塗工程９及び焼付工程１０によ
り塗装被膜が形成される。塗料タンク１１，１２，１３
，１４にはそれぞれ異つた塗料ペーストが入れ５られて
おり、各塗料ペーストは塗膜形成樹脂と顔料とから形成
される。塗料タンクのうちの一つ、たとえばタンク１４
は顔料を含まないメタリック塗装用のクリアーを入れて
もよい。硬化剤タンク１５にはメラミン樹脂系の硬化剤
が、また硬化剤杢タンク１６にはイソシアネート系硬化
剤がそれぞれ入れられている。塗料タンク１１，１２，
１３，１４は、共に多液自動計量機１７，１８に接続さ
れ、硬化剤タンク１５は計量機１７に、硬化剤タンク１
６は計量２機１８にそれぞれ接続されている。Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. Metal parts are sent from a sheet metal process 1 through a chemical conversion process 2 to a sealer and intermediate coating process 3, and from there through a top coating process 4 and a baking process 5. A paint film is formed. The organic material parts undergo a molding step 6, a pretreatment step 7, a primer and sealer application step 8, and then a top coating step 9 and a baking step 10 to form a painted film. Paint tank 11, 12, 13
, 14 contain different paint pastes 5, each of which is formed from a film-forming resin and a pigment. One of the paint tanks, for example tank 14
You may also use a clear paint for metallic paint that does not contain pigments. The curing agent tank 15 contains a melamine resin curing agent, and the curing agent tank 16 contains an isocyanate curing agent. Paint tank 11, 12,
13 and 14 are both connected to multi-liquid automatic measuring machines 17 and 18, and the hardening agent tank 15 is connected to the measuring machine 17, and the hardening agent tank 1 is connected to the measuring machine 17.
6 are respectively connected to two weighing machines 18.
多液自動計量機１７，１８は、塗料タンク１１，１２，
１３，１４からの塗料ペーストを適宜選んで計量し、計
量機１７はこの塗料ペーストに硬化剤タンク１５からの
硬化剤を添加して高温硬化性の塗料を形成３・して、こ
れを上塗工程４にある金属部品に吹付け、計量機１８は
塗料ペーストに硬化剤タンク１６からの硬化剤を添加し
て低温硬化性の塗料を形成して、これを上塗工程９にあ
る有機材料部品に吹付ける。金属部品の塗膜の乾燥焼付
は約１４０℃３一の温度で行ない、有機材料部品の塗膜
の乾燥焼付は約８０℃の温度で行なう。塗料ペーストの
塗膜形成樹脂としては、数平均分子量１５００ないし２
０００の油変性アルキッド樹脂又は数平均分子量１３０
００ないし２００００のアクリル共重合樹脂が好ましい
。 ４Ｃ実施例（％表示はすべて重量％）
（１）レッド塗料
塗料ペーストの構成
塗膜形成樹脂・・・・・・分子量２０００の油変性アル
キツ ド樹脂顔 料・・・・・・キナ
クリドン系赤顔料７１％とアゾ系 オ
レンジ顔料２９％高温用硬化剤・・・・・・ブチル化メ
ラミン樹脂焼付条件・・・・１４０・Ｃで２吟低温用硬
化剤・・・・ＩＰＤＩプレポリマー焼付条件・・・・８
０℃で３紛被塗物・・・・・・ＳＭＣ製サンルーフ
（２）シルバーメタリツク塗料
塗料ペーストの構成
塗膜形成樹脂・・・・・・分子量１７０００のアクリル
スチ レン共重合樹脂顔 料・・・・
・・ハイスパークに
クリアーの構成
樹 脂・・・・・・分子量５０００のアクリルスチレン
共重 合樹脂高温用硬化剤（塗料ペー
スト、クリアーとも同じ）・・・・・・・ブチル化メラ
ミン樹脂焼付条件・・・・１４０℃で２吟
低温用硬化剤（塗料ペースト、クリアーとも同じ）・
・・ＩＰＤＩプレポリマー焼付条件・・・・・・８０℃
で３紛
被塗物・・・・・・ＳＭＣ製サンルーフ
（３）グリーン塗料
塗料ペーストの構成
塗膜形成樹脂・・・・・・分子量２０００の油変性アル
キツ ド樹脂顔 料・・・・・・アゾ
系黄顔料７７％、フラバンスロン 系
黄顔料１４％、シアニン系緑 顔料５％
、無機系白顔料４％高温用硬化剤・・・・・・ブチル化
メラミン樹脂焼付条件・・・・１４０℃で２紛低温用硬
化剤・・・・・・ＨＭＤＩプレポリマー焼付条件・・・
・・・８０℃で３紛被塗物・・・・・・ＰＰ製パンパー
４）イエロー塗料
塗料ペーストの構成
塗膜形成樹脂・・・・・・分子量１６００の油変性アル
キッ ド樹脂顔 料・・・・・・無機
系白顔料４２％、アゾ系黄顔料 ５７．
５％、カーボンブラックと 無機系橙顔
料０．５％高温用硬化剤・・・・・・ブチル化メラミン
樹脂焼付条件・・・・・１４０℃で２紛低温用硬化剤・
・・・・・ＩＰＤＩプレポリマー２重量
部、ＨＭＤＩプレポリマー１重 量部
焼付条件・・・・・・８０℃で３紛
５被塗物・・・・・・Ｒ−ＲＩＭ製フエンダー（５）オ
レンジ塗料塗料ペーストの構成
塗膜形成樹脂・・・・・・分子量１６００の油変性アル
キツ ド樹脂 １顔
料・・・・・・アゾ系橙顔料７９％、キナクリドン系
赤顔料１２％、無機系白顔料９
％高温用硬化剤・・・・・・ブチル化メラミン
樹脂焼付条件・・・・・・１４０′Ｃで２吟
１低温用硬化剤・・・・・・ＩＰＤＩプレポリ
マーとＨＭＤＩプ レポリマーの等量混
合物被塗物・・・・・・Ｒ−ＲＩＭ製フエンダー（６）
ブラウンメタリック塗料塗料ペーストの構成
２塗膜形成樹脂・・・・・・分子量１７０
００のアクリルスチ レン共重合樹脂
＊顔 料・・・・・・メタリックベース細目
１７％、メタリ ツクベース荒目１０％
、無機系 赤顔料４５％、アゾ系黄顔料
２２％、キナクリドン系赤顔料６ ％
クリアーの構成
樹 脂・・・・・・アクリルスチレン共重合樹脂塗料ペ
ーストの高温用硬化剤・・ブチル化メラミン樹脂
焼付条件・・・・・・１４０℃で２紛
塗料ペーストの低温用硬化剤・・
ＨＭＤＩプレポリマー
クリヤーの高温用硬化剤・・
分子量５０００のブチル化メラミン樹脂
クリアーの低温用硬化剤・・・・
ＩＰＤＩプレポリマーとＨＭＤＩプレポリマーの等量混
合物焼付条件・・・・・・８０℃で３吟
被塗物・・・・・・Ｒ−ＲＩＭ製パンパー以上の条件で
得られた塗装部品のカラーマッチング度を調べたところ
、次表に示すような結果が得られた。The multi-liquid automatic measuring machines 17 and 18 have paint tanks 11, 12,
The paint pastes from 13 and 14 are appropriately selected and weighed, and the weighing machine 17 adds the curing agent from the curing agent tank 15 to this paint paste to form a high temperature curable paint 3. This is then applied to the top coating process. The metering machine 18 adds the curing agent from the curing agent tank 16 to the paint paste to form a low-temperature curing paint, which is then sprayed onto the organic material parts in the topcoating process 9. wear. Dry baking of coatings on metal parts is carried out at a temperature of about 140°C, and dry baking of coatings on organic material parts is carried out at a temperature of about 80°C. The film-forming resin for the paint paste has a number average molecular weight of 1500 to 2.
000 oil-modified alkyd resin or number average molecular weight 130
00 to 20,000 acrylic copolymer resin is preferred. 4C Examples (all percentages are by weight) (1) Red paint Paint paste composition Film-forming resin: Oil-modified alkyd resin with a molecular weight of 2000 Pigment: Quinacridone red pigment 71% and azo orange pigment 29% High temperature curing agent...Butylated melamine resin baking conditions...2 Gin at 140°C Low temperature curing agent...IPDI prepolymer baking conditions...・・８
3 powders at 0°C.Object to be coated: SMC sunroof (2) Silver metallic paint.Constitution of paint paste.Film-forming resin: Acrylic styrene copolymer resin with a molecular weight of 17,000.Pigment...・
Constituent resin of High Spark Clear: Acrylic styrene copolymer resin with a molecular weight of 5000 High temperature curing agent (same for paint paste and clear)...Butylated melamine resin Baking conditions ...2 Gin at 140℃ Low temperature curing agent (same for paint paste and clear)・
...IPDI prepolymer baking conditions...80℃
3 Powder to be coated: SMC sunroof (3) Green paint Composition of paint paste Coating film-forming resin: Oil-modified alkyd resin pigment with a molecular weight of 2000. 77% azo yellow pigment, 14% flavanthrone yellow pigment, 5% cyanine green pigment
, Inorganic white pigment 4% High temperature curing agent...Butylated melamine resin baking conditions...2 powders at 140°C Low temperature curing agent...HMDI prepolymer baking conditions...
...Three powders to be coated at 80℃...PP pumper 4) Yellow paint Composition of paint paste Coating film-forming resin...Oil-modified alkyd resin pigment with a molecular weight of 1600... ...Inorganic white pigment 42%, azo yellow pigment 57.
5% carbon black and inorganic orange pigment 0.5% High temperature curing agent...Butylated melamine resin Baking conditions...2 powders at 140℃ Low temperature curing agent.
...IPDI prepolymer 2 weight
parts, 1 part by weight of HMDI prepolymer Baking conditions: 3 powders at 80℃
5 Object to be coated: Fender manufactured by R-RIM (5) Orange paint Composition of paint paste Film-forming resin: Oil-modified alkyd resin with a molecular weight of 1600 1 Face
Material: 79% azo orange pigment, quinacridone type
Red pigment 12%, inorganic white pigment 9
% High temperature curing agent...Butylated melamine resin Baking conditions...2 gins at 140'C
1 Low-temperature curing agent: Mixture of equal amounts of IPDI prepolymer and HMDI prepolymer Covered material: R-RIM fender (6)
Composition of brown metallic paint paint paste
2 Coating film forming resin...Molecular weight 170
00 acrylic styrene copolymer resin
*Pigment: Metallic base fine 17%, Metallic base coarse 10%
, 45% inorganic red pigment, 22% azo yellow pigment, 6% quinacridone red pigment Constituent resin of clear: High temperature curing agent for acrylic styrene copolymer resin paint paste: Butylated melamine resin Baking conditions: Low-temperature curing agent for 2-powder paint paste at 140°C.High-temperature curing agent for HMDI prepolymer clear.Low-temperature curing agent for butylated melamine resin clear with a molecular weight of 5000. Mixture of equal amounts of IPDI prepolymer and HMDI prepolymer Baking conditions: 3 Gins at 80°C Color matching of painted parts obtained under conditions equal to or higher than R-RIM pumper When we investigated the degree, we obtained the results shown in the following table.
この表から明らかなように、本発明の塗装方法によると
きは、いずれのカラーマッチング度検査においても、従
来の塗装方法による塗膜に比し、すぐれたカラーマッチ
ングを示すことが認められる。As is clear from this table, it is recognized that the coating method of the present invention exhibits superior color matching in all color matching degree tests compared to the coating film produced by the conventional coating method.
図面は本発明の塗装方法の一例を示す工程図である。
４，９・・・・・・上塗工程、１１，１２，１３，１４
・・塗料タンク、１５，１６・・・・・・硬化剤タンク
、１７，１８・・・・・・多液自動計量機。The drawings are process charts showing an example of the coating method of the present invention. 4, 9... Top coating process, 11, 12, 13, 14
...Paint tank, 15,16...Curing agent tank, 17,18...Multi-liquid automatic measuring machine.
Claims (1)
部品を別々に塗装しカラーマッチングできるようにした
塗装方法において、塗膜形成樹脂と顔料を含む塗料ペー
ストを用意し、この用意した塗料ペーストの一部を取出
してこれにメラミン樹脂系硬化剤を添加して高温硬化型
塗料を形成して、この塗料を前記金属部品に塗布したの
ち加熱硬化させて塗膜を形成すると共に、前記塗料ペー
ストから別途取出した材料にイソシアネート系硬化剤を
添加して低温硬化型塗料を形成して、この塗料を前記有
機材料系部品に塗布したのち乾燥させて塗膜を形成する
ことを特徴とするカラーマッチング容易な塗装方法。 ２ 前記第１項の方法において、前記金属部品と有機材
料部品とは、並行してほぼ同時に塗装されるようにした
塗装方法。 ３ 前記第１項又は第２項の方法において、前記塗料ペ
ースト中の塗膜形成樹脂が、数平均分子量１５００ない
し２０００の油変性アルキッド樹脂である塗装方法。 ４ 前記第１項又は第２項の方法において、前記塗料ペ
ースト中の塗膜形成樹脂が、数平均分子量１３０００な
いし２００００のアクリル共重合樹脂である塗装方法。[Claims] 1. A painting method that enables color matching by separately painting metal parts and organic material parts that are finally assembled into one, in which a paint paste containing a film-forming resin and a pigment is prepared. A part of the prepared paint paste is taken out and a melamine resin curing agent is added to it to form a high temperature curing type paint, and this paint is applied to the metal parts and then heated and cured to form a paint film. At the same time, an isocyanate-based curing agent is added to a material separately taken out from the paint paste to form a low-temperature curing type paint, and this paint is applied to the organic material-based parts and then dried to form a coating film. Easy color matching painting method. 2. The method of item 1 above, wherein the metal parts and the organic material parts are coated in parallel and almost simultaneously. 3. The coating method according to item 1 or 2, wherein the coating film-forming resin in the paint paste is an oil-modified alkyd resin having a number average molecular weight of 1,500 to 2,000. 4. The coating method according to item 1 or 2, wherein the coating film-forming resin in the paint paste is an acrylic copolymer resin having a number average molecular weight of 13,000 to 20,000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9091980A JPS6051869B2 (en) | 1980-07-03 | 1980-07-03 | Color matching easy painting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9091980A JPS6051869B2 (en) | 1980-07-03 | 1980-07-03 | Color matching easy painting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5715869A JPS5715869A (en) | 1982-01-27 |
| JPS6051869B2 true JPS6051869B2 (en) | 1985-11-15 |
Family
ID=14011827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9091980A Expired JPS6051869B2 (en) | 1980-07-03 | 1980-07-03 | Color matching easy painting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051869B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10756318B2 (en) | 2001-07-24 | 2020-08-25 | Sony Corporation | Method for preventing erroneous loading of component-to-be-loaded on main body side apparatus, component-to-be-loaded and battery pack |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61157384A (en) * | 1984-12-28 | 1986-07-17 | Dainippon Toryo Co Ltd | Method for painting automobile body |
| WO2007108413A1 (en) * | 2006-03-22 | 2007-09-27 | Nippon Paint Co., Ltd. | Method of painting car body part and painting equipment therefor |
-
1980
- 1980-07-03 JP JP9091980A patent/JPS6051869B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10756318B2 (en) | 2001-07-24 | 2020-08-25 | Sony Corporation | Method for preventing erroneous loading of component-to-be-loaded on main body side apparatus, component-to-be-loaded and battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5715869A (en) | 1982-01-27 |
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