JP3604223B2 - Toning judgment method - Google Patents
Toning judgment method Download PDFInfo
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- JP3604223B2 JP3604223B2 JP34213195A JP34213195A JP3604223B2 JP 3604223 B2 JP3604223 B2 JP 3604223B2 JP 34213195 A JP34213195 A JP 34213195A JP 34213195 A JP34213195 A JP 34213195A JP 3604223 B2 JP3604223 B2 JP 3604223B2
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- Prior art keywords
- metallic
- coated surface
- toning
- coating
- paint
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Description
【０００１】
【発明の属する分野】
本発明はメタリック塗料の調色の程度を容易に判定できる方法に関する。
【０００２】
【従来の技術】
すでに塗装されているメタリック塗膜と同一もしくは近似の塗色を示すメタリック塗料に調色するために、調色中もしくは調色後のメタリック塗料を試験塗装し硬化させてなる見本板とすでに塗装されているメタリック塗膜とを比較観察して調色の程度を調べることは通常行われている。
【０００３】
しかしながら、すでに塗装されているメタリック塗膜（被調色塗膜）の表層は通常クリヤー塗膜で被覆されているために光沢がすぐれているのに対して、調色用メタリック塗料の試験塗装塗面はクリヤー塗膜で被覆することはなく、その単独塗膜の光沢はクリヤー塗膜で被覆した被調色塗膜のメタリック塗膜に比べて劣る。
【０００４】
したがって、すでに塗装されているメタリック塗膜と、調色中もしくは調色後のメタリック塗料の試験塗装塗膜とは塗面の光沢が異なるので、かかる該両塗面を比較して調色の程度を観察することは極めて困難であった。
【０００５】
また、この試験塗装塗膜面にクリヤー塗料をさらに塗装すれば光沢の不一致は解消されるが、クリヤー塗料の塗装によって、コストがアップする、メタリックムラが発生することがある、工程が増え操作が繁雑であるなどの欠陥がある。また試験片は完全乾燥しないと再使用できないという欠陥もある。
【０００６】
【発明が解決しようとしている課題】
本発明の目的は上記した種々の欠陥を解消することであり、すでに塗装されているメタリック塗膜（通常クリヤー塗膜が施されている）の光沢と、調色中もしくは調色後のメタリック塗料の試験塗装塗膜の光沢をクリヤー塗料を使用することなく、簡便な方法で近似もしくは一致させる方法を見い出すことができた。その結果、クリヤー塗料の使用による種々の欠陥を生じることなく、塗面の光沢に影響されずに該両塗面を比較でき、調色作業が簡素化できた。
【０００７】
すなわち、本発明は、調色中もしくは調色後のメタリック塗料の塗面Ａと目標色のメタリック塗面Ｂとを比較するにあたり、指触乾燥以上に乾燥もしくは硬化させた該塗面Ａにメタリックムラを生じさせない有機溶剤を塗布して湿潤せしめてヌレツヤ状態とし、湿潤しているうちに該塗面Ａを目標色の該メタリック塗面Ｂと比較することを特徴とする調色判定方法に関する。
【０００８】
【課題を解決するための手段】
本発明において、塗面Ａは調色中もしくは調色後のメタリック塗料からなるメタリック塗面である。具体的には、アルミニウムや雲母状酸化鉄などのりん片状金属粉およびマイカや金属酸化鉄で被覆したりん片状雲母などから選ばれた１種もしくは２種以上のメタリック顔料、さらには必要に応じて有機もしくは無機着色顔料などを併用してなるそれ自体既知のメタリック塗料を使用してなるメタリック塗面である。該塗面Ａにはクリヤー塗料は施されていない。この塗面Ａの色調と目的とする塗膜のそれ（例えば、塗面Ｂ）とを目視で比較するのである。
【０００９】
該塗面Ａは１種もしくは２種以上のメタリック塗料、さらに必要に応じてソリッドカラー塗料などを使用して任意の比率で混合してなるメタリック塗料を試験板などにに塗装し、その塗膜を塗料組成に応じて室温でまたは加熱して硬化させることによって得られる。
【００１０】
本発明では該塗面Ａを有機溶剤であらかじめ湿潤しておくことが必須である。該有機溶剤としては特に制限はないが、ソリュビリティパラメーター（ＳＰ）が７．０〜８．０で、かつ沸点（ＢＰ）が３０〜３５０℃の範囲内に包含されるものが好ましい。具体的にはペンタン（ＳＰ７．０２、ＢＰ３６．１℃）、ヘキサン（ＳＰ７．２７、ＢＰ６８．７℃）、ヘプタン（ＳＰ７．５０、ＢＰ１０２．９℃）、オクタン（ＳＰ７．５４、ＢＰ１２３．０℃）、デカン（ＳＰ７．７４、ＢＰ１７２．５℃）、ドデカン（ＳＰ７．９２、ＢＰ２１４．３℃）、１−シクロヘキシルドデカン（ＳＰ７．８４、ＢＰ３２９．０℃）などがあげられ、これらは１種もしくは２種以上が使用できる。このうちヘキサンやヘプタンなどが好ましい。これらのＳＰおよびＢＰはＪｏｕｒｎａｌ ｏｆ Ｐａｉｎｔ Ｔｅｃｈｎｏｌｏｇｙ Ｖｏｌ．４２，Ｎｏ．５４１ １９７０ の記載に準ずる。
【００１１】
これらの有機溶剤を指触乾燥以上に乾燥もしくは硬化させた塗面Ａにスプレーや刷毛などで塗布して湿潤せしめるとヌレツヤ状態になり、その光沢は塗面Ｂのそれと近似もしくは一致し、その結果、塗面Ｂの色調と容易に比較観察できるようになった。塗布量は特に制限されず塗面が湿潤する程度であればよい。湿潤しているうちに塗面Ｂと比較観察するのである。
【００１２】
塗面Ｂは目標色のメタリック塗面であり、通常、自動車外板部に塗装したメタリック塗膜があげられ、これらは新車もしくは中古車のいずれの塗膜にも適用できる。
【００１３】
【発明の効果】
１．調色中もしくは調色後のメタリック塗料の試験塗装塗膜（塗面Ａ）の表面は有機溶剤の湿潤によりヌレツヤ状態になり、その光沢は塗面Ｂのそれと近似もしくは一致し、その結果、塗面Ｂの色調を容易に比較観察できるようになった。２．湿潤せしめる有機溶剤はコストをアップさせたり、メタリックムラを発生させたりすることがなく、しかも塗装機の洗浄もきわめて簡単である。
【００１４】
３．塗面Ａを湿潤した有機溶剤はエア−ブロ−などにより容易に蒸発させることができるので、該塗面Ａは短時間で再使用可能である。
【００１５】
【実施例】
実施例１
「レタンＰＧ８０」（関西ペイント社製、商品名、２液型アクリルウレタン系自動車補修用メタリック塗料）で調色し、試験板に乾燥塗膜で３０〜３５μになるように塗装し、２０℃で５分乾燥させてから、該塗面にペンタンとデカンとの等量混合溶剤で塗布湿潤すると、対象メタリック塗膜との光沢がほぼ一致しており、しかもメタリック塗面にメタリックムラがなく、比較観察が容易に行うことができた。
【００１６】
実施例２
上記実施例１の湿潤用溶剤をヘキサンに代えた以外は実施例１と同様に行った結果、対象メタリック塗膜との光沢がほぼ一致しており、しかもメタリック塗面にメタリックムラがなく、比較観察が容易に行うことができた。
【００１７】
実施例３
上記実施例１の湿潤用溶剤をペンタンと１−シクロヘキシルドデカンとの等量混合物に代えた以外は実施例１と同様に行った結果、対象メタリック塗膜との光沢がほぼ一致しており、しかもメタリック塗面にメタリックムラがなく、比較観察が容易に行うことができた。
【００１８】
実施例４
上記実施例１の湿潤用溶剤をヘプタンとドデカンとの等量混合物に代えた以外は実施例１と同様に行った結果、対象メタリック塗膜との光沢がほぼ一致しており、しかもメタリック塗面にメタリックムラがなく、比較観察が容易に行うことができた。
【００１９】
比較例１
上記実施例１の湿潤用溶剤を酢酸ブチル（ＳＰ８．６９、ＢＰ１２５．９℃）に代えた以外は実施例１と同様に行った結果、メタリック塗面にメタリックムラが著しく発生し比較観察が行えなかった。
【００２０】
比較例２
上記実施例１の湿潤用溶剤をメチルエチルケトン（ＳＰ９．４５、ＢＰ７９．６℃）に代えた以外は実施例１と同様に行った結果、メタリック塗面にメタリックムラが著しく発生し比較観察が行えなかった。
【００２１】
比較例３
上記実施例１の湿潤用溶剤をトルエン（ＳＰ８．９３、ＢＰ１１０．６℃）に代えた以外は実施例１と同様に行った結果、メタリック塗面にメタリックムラが著しく発生し比較観察が行えなかった。[0001]
[Field of the Invention]
The present invention relates to a method for easily determining the degree of toning of a metallic paint.
[0002]
[Prior art]
To prepare a metallic paint that has the same or similar paint color as the metallic paint that has already been painted, test paint and harden the metallic paint during or after toning. It is common practice to compare and observe the metallic coating to determine the degree of toning.
[0003]
However, the surface layer of a metallic coating (toned coating) that has already been painted is usually excellent in gloss because it is covered with a clear coating, whereas the test coating of a metallic coating for toning is applied. The surface is not coated with the clear coating, and the gloss of the single coating is inferior to the metallic coating of the toned coating coated with the clear coating.
[0004]
Therefore, since the glossiness of the painted surface is different between the already painted metallic coating film and the test coating film of the metallic paint during or after toning, the degree of toning is compared by comparing the two painted surfaces. Was very difficult to observe.
[0005]
In addition, if the clear paint is further applied to the test paint film surface, the mismatch in gloss can be resolved, but the application of the clear paint will increase the cost, may cause metallic unevenness, and require additional steps. There are defects such as complexity. There is also a defect that the test piece cannot be reused unless it is completely dried.
[0006]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned various defects, and to improve the gloss of a metallic coating film (which is usually provided with a clear coating film), and a metallic paint during or after toning. A method for approximating or matching the glossiness of the test coating film by a simple method without using a clear paint was found. As a result, the two coated surfaces could be compared without causing various defects due to the use of the clear coating and without being affected by the gloss of the coated surfaces, and the toning operation could be simplified.
[0007]
That is, in the present invention, when comparing the coated surface A of the metallic paint during or after the toning with the metallic coated surface B of the target color, the coated surface A dried or cured to a touch-dry or more is metallic. The present invention relates to a toning determination method , which comprises applying an organic solvent that does not cause unevenness to wet it to make it slimy, and comparing the coated surface A with the metallic coated surface B of a target color while wet .
[0008]
[Means for Solving the Problems]
In the present invention, the coated surface A is a metallic coated surface made of a metallic paint during or after toning. Specifically, one or two or more metallic pigments selected from flaky metal powders such as aluminum and mica-like iron oxide, and flaky mica coated with mica and metal iron oxide, It is a metallic coated surface using a known metallic paint which is used in combination with an organic or inorganic coloring pigment or the like depending on the case. No clear paint was applied to the coated surface A. The color tone of the coated surface A and that of the target coating film (for example, the coated surface B) are visually compared.
[0009]
The painted surface A is coated on a test plate or the like with one or two or more metallic paints and, if necessary, a metallic paint obtained by mixing at an arbitrary ratio using a solid color paint or the like. By heating at room temperature or by heating according to the coating composition.
[0010]
In the present invention, it is essential that the coated surface A is wetted in advance with an organic solvent. The organic solvent is not particularly limited, but is preferably one having a solubility parameter (SP) of 7.0 to 8.0 and a boiling point (BP) of 30 to 350 ° C. Specifically, pentane (SP7.02, BP36.1 ° C), hexane (SP7.27, BP68.7 ° C), heptane (SP7.50, BP102.9 ° C), octane (SP7.54, BP123.0 ° C) ), Decane (SP7.74, BP 172.5 ° C), dodecane (SP7.92, BP214.3 ° C), 1-cyclohexyldecane (SP7.84, BP329.0 ° C), and the like. Two or more can be used. Of these, hexane and heptane are preferred. These SPs and BPs are described in Journal of Paint Technology Vol. 42, no. 541 1970.
[0011]
When these organic solvents are applied or moistened on the coated surface A dried or hardened to the touch or more by a spray or a brush or the like, a slimy state is obtained, and the gloss thereof is close to or equal to that of the coated surface B. As a result, And the color tone of the coated surface B can be easily compared and observed. The coating amount is not particularly limited as long as the coating surface is wet. It is compared with the coated surface B while it is wet.
[0012]
The painted surface B is a metallic painted surface of a target color, and usually includes a metallic coating film applied to an outer panel of an automobile, and these can be applied to a coating film of a new car or a used car.
[0013]
【The invention's effect】
1. Test of the metallic paint during or after toning The surface of the coated paint film (painted surface A) becomes slimy due to the wetting of the organic solvent, and its gloss approximates or matches that of painted surface B. The color tone of the surface B can be easily compared and observed. 2. The wetting organic solvent does not increase the cost or generate metallic unevenness, and the washing of the coating machine is extremely simple.
[0014]
3. Since the organic solvent that wets the coated surface A can be easily evaporated by air blow or the like, the coated surface A can be reused in a short time.
[0015]
【Example】
Example 1
Toned with "Retan PG80" (manufactured by Kansai Paint Co., Ltd., trade name, two-pack acrylic urethane-based metallic paint for automobile repair), coated on a test plate with a dry coating at 30-35μ, and at 20 ° C After drying for 5 minutes, when the coated surface is wetted with a mixed solvent of an equal amount of pentane and decane, the gloss of the target metallic coating film almost matches, and the metallic coated surface has no metallic unevenness. Observation was easy.
[0016]
Example 2
As a result of performing the same procedure as in Example 1 except that hexane was used as the wetting solvent in Example 1 above, the gloss of the target metallic coating film was almost the same, and there was no metallic unevenness on the metallic coating surface. Observation was easy.
[0017]
Example 3
As a result of performing the same procedure as in Example 1 except that the wetting solvent in Example 1 was replaced with an equivalent mixture of pentane and 1-cyclohexyldecane, the gloss of the target metallic coating film was almost the same, and There was no metallic unevenness on the metallic coated surface, and comparative observation could be easily performed.
[0018]
Example 4
As a result of performing the same procedure as in Example 1 except that the wetting solvent in Example 1 was replaced with an equal mixture of heptane and dodecane, the gloss of the target metallic coating film almost matched, and the metallic coating surface There was no metallic unevenness, and comparative observation could be performed easily.
[0019]
Comparative Example 1
The same procedure as in Example 1 was carried out except that the wetting solvent in Example 1 was replaced with butyl acetate (SP8.69, BP125.9 ° C.). Did not.
[0020]
Comparative Example 2
Example 1 was repeated except that the wetting solvent used in Example 1 was changed to methyl ethyl ketone (SP9.45, BP79.6 ° C). As a result, the metallic coating surface was significantly uneven, and comparative observation was not possible. Was.
[0021]
Comparative Example 3
As a result of performing the same procedure as in Example 1 except that the wetting solvent in Example 1 was changed to toluene (SP8.93, BP110.6 ° C.), metallic unevenness was remarkably generated on the metallic coated surface, and comparative observation could not be performed. Was.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34213195A JP3604223B2 (en) | 1995-12-28 | 1995-12-28 | Toning judgment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34213195A JP3604223B2 (en) | 1995-12-28 | 1995-12-28 | Toning judgment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09178559A JPH09178559A (en) | 1997-07-11 |
| JP3604223B2 true JP3604223B2 (en) | 2004-12-22 |
Family
ID=18351376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34213195A Expired - Lifetime JP3604223B2 (en) | 1995-12-28 | 1995-12-28 | Toning judgment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3604223B2 (en) |
-
1995
- 1995-12-28 JP JP34213195A patent/JP3604223B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09178559A (en) | 1997-07-11 |
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