JPH1039762A - Panel for observation of coating color and panel blank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a panel for observation of coating colors which enables a user to sufficiently observe a flip-flop effect by changing the curvature of a projectingly curved surface along its plane. SOLUTION: The panel 10 for observation of the coating colors comprises a panel blank 12 formed with a coating film 11 having nearly a uniform thickness on its surface. The coating film 11 comprises a sealer coating film which is applied on the surface of the panel blank 12 and conceals substrate defects and a finish coating film which is applied on the surface of the sealer coating film and expresses the color feel of the surface of the panel 10 for observation of the coating colors. The sealer coating film may be omitted according to the panel blanks. Arbitrary curves are parallely moved in a horizontal direction and are drawn on the surface of the panel blank 12. In such a case, the curvature of the projectingly curved surface is changed along the plane. As a result, the highlight color feel of plural stripes and shade color feel are expressed in consequence of the curved surface of the panel even if the observer holds his visual line at a specified position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint color sample panel used for a presentation at an exhibition or the like, and more particularly to a paint color observation panel having a coating film formed along a convex curved surface.

[0002]

2. Description of the Related Art A paint maker holds a paint color exhibition and introduces the actually applied paint to an automobile manufacturer and a building material maker. For example, at a paint color exhibition for automakers, a paint color observation panel imitating the body of a car is exhibited.

[0003]

As shown in FIG. 1, a conventional paint color observation panel 100 is formed by a press wire with a step 10.
Although the surface 1 is provided, since the curved surface 102 is formed with a small and uniform curvature, the color sensation of the paint from multiple angles is observed unless the position of the observer's eyes is largely shifted up and down. I couldn't do that.

In particular, in recent years, as the incident angle of external light or the line of sight of the observer changes, the surface of the coating film becomes metallic (highlight color) or dark (shade color). Bright coatings have appeared. In order to observe a coating film having such a so-called flip-flop effect, it was not possible to expect sufficient expression of color with a conventional panel for observing paint colors.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a paint color observation panel capable of sufficiently observing a so-called flip-flop effect.

[0006]

According to a first aspect of the present invention, there is provided a panel for observing a coating color having a coating film formed along a convex curved surface, wherein the curvature of the convex curved surface is set to a surface. It is characterized by changing along. As a result, various colors of the coating film can be displayed according to the change in the curvature of the convex curved surface, even if the observer keeps his / her gaze fixed at a fixed position.

According to a second aspect of the present invention, there is provided a panel for observing a coating color having a coating film formed along a convex curved surface,
It has a concave curved surface continuous with the convex curved surface. As a result, the combination of the convex curved surface and the concave curved surface makes it possible to express various colors of the coating film even when the observer keeps his / her gaze fixed at a fixed position. Here, by disposing the concave curved surface between the two convex curved surfaces, a more complex color appearance can be expressed.

Further, when a glittering coating film is used as the coating film, a so-called flip-flop that generates a highlight that produces glitter and a shade that eliminates glitter on the surface of the coating film based on the properties of the glitter coating film. The effect can be fully observed. As a result, the curved surface, regardless of the angle of incidence of the observer's line of sight, is based on the properties of the glittering coating film,
The highlight color and the shade color of a plurality of streaks arranged alternately are displayed.

Further, according to the third aspect of the present invention, there is provided a panel material before forming a coating film, which is used in any of the panels for observing paint colors.

[0010]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 shows a paint color observation panel 10 according to one embodiment of the present invention. This paint color observation panel 10
Is composed of a panel material 12 having a coating film 11 having a substantially uniform thickness formed on the surface. The coating film 11 is made of a panel material 12
And a top coat coated on the surface of the sealer coating and expressing the color of the surface of the panel 10 for observing the coating color. The sealer coating may be omitted depending on the panel material.

As is apparent from FIG.
Is drawn such that an arbitrary curve is translated in the horizontal direction. As can be seen from the vertical cross section shown in FIG. A second color expression curved surface 16 connected to the lower end of the expression curved surface 13 and reaching the end surface 15 is provided.

The first color expression curved surface 13 has a first convex curved surface 17 having a relatively small curvature (large radius of curvature) and a first connecting curved surface which is continuous with the first convex curved surface 17 and has a very large curvature and a small width. 18. Not only can the curvature be changed along the surface by connecting the plurality of curved surfaces 17 and 18, but also the first convex surface 17 itself undergoes a slight change in curvature, and as a result, a complex convex surface is formed. You.

The second color expression curved surface 16 has a second convex curved surface 19 having a smaller curvature than the first convex curved surface 17, and is continuous with the second convex curved surface 19, and has a curvature radius of the second convex curved surface 19. A second concave curved surface 20 that is curved with substantially the same radius of curvature. The second connecting curved surface 21 that is continuous from the second concave curved surface 20 is:
It has a smaller curvature than the first connection curved surface 18 and has
Is connected to The curved surface 1 thus connected continuously
4, 15, 17, 18, 19, 20, 21
A convex curved surface and a concave curved surface having various curvatures are formed on one panel. Further, according to the connection of such curved surfaces, the first and second concave curved surfaces 14 and 20 have three convex curved surfaces, that is, the first connected curved surface 18, the second convex curved surface 19, and the second connected curved surface 2.
1 alternately.

It is preferable that a panel fixing surface parallel to a wall surface or the like when the panel is displayed is connected to the upper end surface and the end surface 15 of the panel material 12.

Next, a method for manufacturing the paint color observation panel of this embodiment will be described. First, the panel material 12 is formed.
The panel material 12 is made of, for example, an aluminum (alloy) plate, a (plated) steel plate, a copper plate, a brass plate, or a plastic plate. When an aluminum (alloy) plate or a (plated) steel plate is used, the panel material 12 can be obtained by pressing using a mold shown in FIG. In the case of a plastic plate, injection molding or the like may be used.

Subsequently, after performing a degreasing treatment as a pretreatment, a sealer coating film is formed on the surface of the panel material 12 as necessary. By forming this sealer coating film, the surface smoothness of the top coating film can be ensured. For coating of the sealer coating, an intermediate coating containing various organic or inorganic coloring pigments and extender pigments is used. Examples of the color pigment for the intermediate coating include, for example, organic azo lake pigments, insoluble azo pigments, condensed azo pigments, phthalocyanine pigments, indigo pigments, perinone pigments, perylene pigments,
In addition to dioxazine pigments, quinacridone pigments, isoindolinone pigments, and metal complex pigments, inorganic yellow lead, yellow iron oxide, red iron oxide, carbon black, and titanium dioxide can be mentioned. Examples of the extender include calcium carbonate, barium sulfate, clay, and talc. Gray-based intermediate coatings containing carbon black and titanium dioxide as main pigments are often used, but so-called color intermediate coatings in which the above-mentioned respective color pigments are combined can also be used.

As the coating form, a solution type is preferably used. If it is a solution type, it may be any of an organic solvent type, an aqueous type (water-soluble, water-dispersible, emulsion) and a non-aqueous type. Powder coatings can also be used.

As a vehicle for the intermediate coating, a resin obtained by mixing a crosslinking resin such as an amino resin or a (block) polyisocyanate compound with a base resin such as an acrylic resin, a polyester resin, an alkyd resin, or an epoxy-modified polyester resin, and also drying at room temperature. Can be cured 2
A liquid polyurethane resin or a silicone resin can be used.

The intermediate coating composition is prepared by mixing a coloring pigment and a vehicle in consideration of the hue of the formed coating film. However,
The solid content is 30-70% by weight at the time of production, 10% at the time of application.
The range of ５０50% by weight is preferred. The dry film thickness of the sealer coating is set to 25 to 50 μm, preferably 30 to 40 μm.

Thereafter, a top coat is formed on the surface of the sealer coat. For the formation of the top coat, a base coat coating process using a glitter-containing top coating or a solid coating process that is a colored paint containing no glitter is adopted. In the base coat coating process, as a glitter material component, for example, metal fine pieces such as aluminum foil, bronze foil, tin foil, gold foil, silver foil, titanium metal foil, stainless steel foil, nickel-copper foil, pearl mica (white mica), At least one or more brilliant materials selected from mica pieces such as interference mica, colored mica, and metal-plated mica, flake-like pigments such as plate-like iron oxide, and metal-plated glass flakes are used. Glitter paint, if necessary,
The organic or inorganic color pigments and extenders described above can be used in combination. In the solid coating step, a paint containing a coloring pigment or an extender without using a glitter material component is used. The film thickness is 10 to 3 when the base coat film is dried.
The thickness is preferably 0 μm and a dry film thickness of 20 to 60 μm for a solid coating film.

As a form of the coating, a solution type is preferably used. If it is a solution type, it may be any of an organic solvent type, an aqueous type (water-soluble, water-dispersible, emulsion) or a non-aqueous type. Further, a powder coating can also be used. Further, depending on the purpose, curing catalyst, ultraviolet absorber, antioxidant,
A surface conditioner or the like can be used.

As a vehicle for the top coat, a film-forming resin such as an acrylic resin, a polyester resin, an alkyd resin, or a fluororesin, and a crosslinking agent such as an amino resin or a block polyisocyanate compound are used. It is preferable to use an acrylic resin in combination with at least one of an amino resin and a blocked polyisocyanate compound.

Usually, a clear coating is applied to the surface of the overcoat film, particularly to the surface of the glittering film. As the resin component of the clear paint used for this clear coating, one of the same type as the above-mentioned top coat paint or an acid epoxy-curable resin paint for acid rain resistance is used. Moreover, if necessary, a coloring pigment and various additive components can be blended within a range that does not impair the transparency. In forming the clear coating film, it is preferable to form at least one coating film layer having a dry film thickness of 30 to 60 μm.

In the paint color observation panel on which the coating film has been formed, even if the observer keeps his / her gaze in a fixed position, a highlight color and a shade of a plurality of stripes appear due to the curved surface of the panel. . Such a paint color observation panel can be used, for example, as a color sample for expressing the color of a refrigerator, a bicycle, or a motorcycle, in addition to an outer panel of an automobile or a partition of a building.

In the above-described embodiment, as in the case of ordinary automotive exterior panel coating, subsequent to the pretreatment (degreasing treatment and chemical conversion treatment), the formation of an undercoat or chipping coating by electrodeposition coating and the formation of an intermediate coating film. After the formation, a top coat may be formed.

[0027]

EXAMPLE A coating was applied to an aluminum plate material (shape shown in FIG. 3) according to the above-described steps. "OLGA" S-90 sealer gray, polyester / melamine resin sealer manufactured by Nippon Paint Co., Ltd. was used for the sealer coating film. The dry film thickness of the sealer coating was set to 35 μm,
Baking was performed at 40 ° C. for 30 minutes. "Super Luck" M-91 (titanium dioxide-coated mica-containing acrylic / melamine paint) manufactured by Nippon Paint Co., Ltd. was used for the overcoat base coat film. The film thickness of the top coat base coat film is set to 15 μm, and the “Super Rack” O-150 clear manufactured by Nippon Paint Co., Ltd. is applied to the top coat base coat film as a clear coat film to a thickness of 30 μm by wet-on-wet. You.
After formation of the clear coating film, baking was performed at 140 ° C. for 30 minutes.

As a comparative example, the above-mentioned conventional aluminum paint color observation panel (shape shown in FIG. 1) was prepared. The coating film formation in the comparative example was performed in the same manner as in the present invention. as a result,
In the paint color observation panel according to the present example, 2 to 4 highlight color sensations were exhibited, and highlight / shade contrast remarkably appeared. It was easy to observe the highlight color. On the other hand, in the conventional paint color observation panel, although the highlight color appearance was observed, the highlight / shade contrast was low and it was difficult to observe the highlight color appearance.

[0029]

As described above, according to the present invention, it is possible to observe various color sensations with a single panel while keeping the observer's line of sight fixed at a fixed position.

[Brief description of the drawings]

FIG. 1 is a diagram showing an end of a conventional paint color observation panel.

FIG. 2 is a perspective view of a paint color observation panel according to the present invention.

FIG. 3 is a vertical sectional view of a panel material.

FIG. 4 is a side view of a mold when pressing a panel material.

[Explanation of symbols]

Reference Signs List 10 paint color observation panel, 11 paint film, 12 panel material, 14 first concave curved surface as concave surface, 15 terminal surface as convex curved surface, 17 first convex curved surface as convex curved surface, 1
8 First connection curved surface as a convex curved surface, 19 Second convex curved surface as a convex curved surface, 20 Second concave curved surface as a concave curved surface, 21
A second connection curved surface as a convex curved surface.

Claims (6)

[Claims] 1. A coating color observation panel having a coating film formed along a convex curved surface, wherein the curvature of the convex curved surface is changed along the surface. 2. A paint color observation panel having a coating film formed along a convex curved surface, wherein the paint color observation panel has a concave curved surface continuous with the convex curved surface. 3. The paint color observation panel according to claim 2, wherein the concave curved surface is disposed between the two convex curved surfaces. 4. The panel for observing a paint color according to claim 1, wherein said coating film is a bright coating film. 5. The paint color observing panel according to claim 4, wherein the curved surface has a plurality of stripes arranged alternately on the basis of the properties of the glittering coating film, regardless of the angle of incidence of the line of sight of the observer. A paint color observation panel characterized by exhibiting a highlight color shade and a shade color shade. 6. A panel material before forming a coating film, which is used for the panel for observing a coating color according to claim 1.