Temporary structures, laminated coating films, and methods for forming laminated coating films

Abstract

The present invention provides a temporary building that can color the surface of a synthetic resin body by forming a colored coating on the surface of the body to be coated, and can also protect the surface of the body to be coated. [Solution] The temporary building X comprises an exterior wall body 1 (each exterior wall panel 11-14) and a laminated coating film Y. The exterior wall body 1 (each exterior wall panel 11-14) is made of synthetic resin. The laminated coating film Ya has a primer coating film Ya formed by applying an easily peelable paint to the surface of the exterior wall body 11, and a colored coating film Yb formed by applying a colored diluted paint to the entire surface of the primer coating film Ya. The diluted paint contains a colored paint containing a coloring pigment, a hardener, and a diluting solvent (thinner). The primer coating film Ya is fixed (adhered) to the surface of the exterior wall body 1 (each exterior wall panel 11-14) in a manner that allows it to be peeled off.

Description

Technical Field

[0001] The present invention relates to a temporary building, a laminated coating film, and a method for forming the laminated coating film, in which a paint is applied to the surface of a synthetic resin-coated object to form a colored coating film on the surface of the coated object.

Background Art

[0002] As a technology of a temporary building, Patent Document 1 discloses a temporary toilet. The temporary toilet includes a gantry, four columns, fixed panels formed of three synthetic resins, a door panel, and a ceiling panel. Each column is erected at the four corners of the gantry. Each fixed panel and the door panel are arranged between the columns and attached to the columns. The ceiling panel is arranged facing the gantry and attached to the columns.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In Patent Document 1, the temporary toilet generally uses fixed panels of the same color. When changing the color specification of each fixed panel, it is necessary to remove each fixed panel from each column, replace it with a fixed panel of the color corresponding to the specification change, and attach it to each column. In the temporary toilet of Patent Document 1, the surface of each fixed panel is not protected at all.

[0005] An object of the present invention is to provide a temporary building that can color the surface of a coated object and protect the surface of the coated object by forming a colored coating film on the surface of a synthetic resin-coated object of the temporary building. The present invention aims to provide a laminated coating film that can color the surface of a synthetic resin substrate and protect its surface by forming a colored coating film on the substrate, as well as a method for forming such a laminated coating film. [Means for solving the problem]

[0006] Claim 1 of the present invention relates to a temporary building comprising a body to be painted and a laminated coating, wherein the body to be painted is made of a synthetic resin, and the laminated coating has a primer coating formed by applying an easily peelable paint to the surface of the body to be painted and a colored coating formed by applying a diluted paint on the primer coating, the diluted paint comprises a colored paint, a hardener, and a diluent, and the primer coating is peelable from the body to be painted. Claim 1 may also adopt a configuration in which the laminated coating film comprises a peelable primer coating film formed by applying an easily peelable paint to the surface of the object to be coated of the temporary building, and a colored coating film formed by applying a colored diluted paint on top of the primer coating film. Claim 1 may also adopt a configuration in which the diluted paint comprises a colored paint containing a coloring pigment, a hardener, and a diluting solvent. Claim 1 may define the temporary building as a temporary toilet, temporary housing, temporary office, temporary shop, temporary shower, temporary equipment, etc., and the object to be coated of the temporary building may be the exterior wall (exterior wall panel), roof, door, sink (washbasin) of the temporary equipment, etc. Claim 1 may define the object to be coated of the temporary building as a temporary enclosure panel, louvered privacy panel, etc. In claim 1, the thickness of the laminated coating film is the sum of the thickness of the undercoat coating film (for example, 5 μm to 50 μm) and the thickness of the colored coating film (for example, 40 μm to 280 μm), and a configuration in which the thickness is, for example, 50 μm to 300 μm, preferably 50 μm to 200 μm, can also be adopted.

[0007] Claim 2 of the present invention is the temporary building according to Claim 1, characterized in that the body to be painted is formed of polyethylene resin.

[0008] Claim 3 of the present invention is a laminated coating film having a primer coating film formed by applying an easily peelable paint to the surface of a synthetic resin object to be coated, and a colored coating film formed by applying a diluted paint on the primer coating film, wherein the diluted paint comprises a colored paint, a hardener, and a diluent, and the primer coating film is peelable from the object to be coated. Claim 3 may also adopt a configuration comprising a peelable primer film formed by applying an easily peelable paint to the surface of the object to be painted (an object to be painted made of synthetic resin for a temporary building), and a colored film formed by applying a colored diluted paint on top of the primer film. In Claim 3, the diluted paint may also adopt a configuration comprising a colored paint containing a coloring pigment, a hardener, and a diluting solvent. Claim 3 allows for the use of synthetic resin as the substrate for temporary construction (exterior walls, doors, roofs, etc.), sinks (washing units) for temporary equipment, panels for temporary enclosures, louvered privacy panels, etc. Claim 3 allows for the use of temporary enclosure panels, louvered privacy panels, etc. Claim 3 allows for the use of synthetic resin as the substrate for temporary construction (exterior walls, doors, roofs, etc.), and allows for the use of a configuration where the thickness of the laminated coating is the sum of the thickness of the undercoat coating (e.g., 5 μm to 50 μm) and the thickness of the colored coating (e.g., 40 μm to 280 μm), for example, 50 μm to 300 μm, preferably 50 μm to 200 μm.

[0009] Claim 4 of the present invention is a laminated coating film according to claim 3, characterized in that the object to be coated is formed of polyethylene resin.

[0010] Claim 5 of the present invention is a method for forming a laminated coating film, comprising: a primer coating film forming step of applying an easily peelable paint to the surface of a synthetic resin workpiece to form a primer coating film on the surface of the workpiece; a primer coating film drying step of drying the primer coating film formed on the surface of the workpiece to make the primer coating film peelable from the workpiece and fixed to the workpiece; a colored coating film forming step of applying a diluted paint containing a coloring paint, a hardener and a diluent on the primer coating film after the primer coating film has been dried to form a colored coating film on the primer coating film; and a colored coating film drying step of drying the colored coating film formed on the primer coating film to fix the colored coating film to the primer coating film, thereby forming a laminated coating film on the surface of the workpiece. Claim 5 may also include a configuration comprising: a primer drying step in which an easily peelable paint applied to the object to be painted is dried to make the primer film peelable from the object to be painted and fixed to the object to be painted; and a colored paint drying step in which a diluted paint applied on the primer film is dried to fix (adhere / integrate) the colored paint film to the primer film, thereby forming a laminated paint film on the surface of the object to be painted in the order of primer film and colored paint film. Claim 5 may also include a configuration in which the diluted paint comprises a colored paint containing a colored pigment, a hardener, and a diluting solvent. Claim 5 allows for the use of synthetic resin to be applied to temporary structures (exterior walls, doors, roofs), sinks (washing units) for temporary equipment, panels for temporary enclosures, louvered privacy panels, etc. Claim 5 allows for the use of temporary structures to be applied to temporary enclosures, louvered privacy panels, etc. Claim 5 allows for the use of synthetic resin to be applied to temporary structures (exterior walls, doors, roofs), panels for temporary enclosures, louvered privacy panels, etc. The thickness of the laminated coating film is the sum of the thickness of the undercoat film (e.g., 5 μm to 50 μm) and the thickness of the colored coating film (e.g., 40 μm to 280 μm), and a configuration of, for example, 50 μm to 300 μm, preferably 50 μm to 200 μm, can also be adopted.

[0011] Claim 6 of the present invention relates to a primer coating film forming step of applying an easily peelable paint to the surface of a synthetic resin workpiece to form a primer coating film on the surface of the workpiece; a primer coating film drying step of drying the primer coating film formed on the surface of the workpiece to make the primer coating film peelable from the workpiece and fixed to the workpiece; a colored coating film forming step of applying a diluted paint containing a colored paint, a hardener and a diluent solvent on the primer coating film after the primer coating film has been dried to form a colored coating film on the primer coating film; and the colored coating film formed on the primer coating film A method for forming a laminated coating film, comprising: a colored coating film drying step, which dries the coating film and fixes the colored coating film to the undercoat coating film to form a laminated coating film on the surface of the object to be coated; and a laminated coating film peeling step, which peels the laminated coating film formed on the surface of the object to be coated from the surface of the object to be coated, characterized in that the steps are performed in the following order: undercoat coating film formation step, undercoat coating film drying step, colored coating film formation step, colored coating film drying step, laminated coating film peeling step, undercoat coating film formation step, undercoat coating film drying step, colored coating film formation step, and colored coating film drying step. Claim 6 may also include a configuration comprising: a primer drying step in which an easily peelable paint applied to the object to be painted is dried to make the primer film peelable from the object to be painted and fixed to the object to be painted; and a colored paint drying step in which a diluted paint applied on the primer film is dried to fix (adhere / integrate) the colored paint film to the primer film, thereby forming a laminated paint film on the surface of the object to be painted in the order of the primer film and the colored paint film. Claim 6 may also include a configuration in which the diluted paint comprises a colored paint containing a colored pigment, a hardener, and a diluting solvent. Claim 6 allows for the use of synthetic resin to be applied to temporary structures (exterior walls, doors, roofs), sinks (washing units) for temporary equipment, panels for temporary enclosures, louvered privacy panels, etc. Claim 6 allows for the use of temporary structures to be applied to temporary enclosures, louvered privacy panels, etc. Claim 6 allows for the use of synthetic resin to be applied to temporary structures (exterior walls, doors, roofs), panels for temporary enclosures, louvered privacy panels, etc. The thickness of the laminated coating film is the sum of the thickness of the undercoat film (e.g., 5 μm to 50 μm) and the thickness of the colored coating film (e.g., 40 μm to 280 μm), and a configuration of, for example, 50 μm to 300 μm, preferably 50 μm to 200 μm, can also be adopted.

[0012] Claim 7 of the present invention is a method for forming a laminated coating film according to claim 5 or 6, characterized in that the object to be coated is formed of polyethylene resin. [Effects of the Invention]

[0013] In this invention, by layering a primer film and a colored film in that order on the surface of the object to be painted (object to be painted) of a temporary building, a laminated coating film can be formed, thereby coloring the surface of the object to be painted (object to be painted) of a temporary building with the colored coating film of the laminated coating film without replacing the object to be painted. In this invention, by forming a primer coating on the surface of the painted object of a temporary building, the laminated coating (colored coating together with the primer coating) can be peeled off the painted object of the temporary building. By layering the primer coating and colored coatings of various colors in that order on the surface of the painted object of the temporary building from which the colored coating and primer coating (laminated coating) have been peeled off, it becomes possible to accommodate the specified color for coloring the surface of the painted object. In this invention, by forming a laminated coating film (primer coating film and colored coating film) on the surface of a temporary building to be painted, the surface of the to be painted can be covered by the laminated coating film and protected, and the laminated coating film can function as a surface protective material for the to be painted. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front view showing a temporary structure (temporary toilet). [Figure 2] This is a right-side view showing a temporary structure (temporary toilet). [Figure 3] This is a rear view showing a temporary structure (temporary toilet). [Figure 4] This is a cross-sectional view AA in Figure 1. [Figure 5] Figure 2 is a cross-sectional view of BB. [Figure 6] (a) is an enlarged view of section C in Figure 4, and (b) is an enlarged view of section D in Figure 4. [Figure 7]It is an enlarged view of part E in FIG. 4. [Figure 8] (a) is an enlarged view of part F in FIG. 5, and (b) is an enlarged view of part G in FIG. 5. [Figure 9] It is a flowchart diagram (1) showing a method for forming a laminated coating film. [Figure 10] It is a flowchart diagram (2) showing a method for forming a laminated coating film. [Figure 11] It is a plan view (plan photograph) showing Example 1 (laminated coating film plate 1) in the peel test. [Figure 12] It is a perspective view (perspective photograph) showing Example 1 (laminated coating film plate 1) in the peel test. [Figure 13] It is a perspective view (perspective photograph) showing the actually measured film thickness (1) of the laminated coating film of Example 1 in the peel test. [Figure 14] It is a perspective view (perspective photograph) showing the actually measured film thickness (2) of the laminated coating film of Example 1 in the peel test. [Figure 15] It is a perspective view showing the actually measured film thickness (3) of the laminated coating film of Example 1 in the peel test. [Figure 16] It is a perspective view (perspective photograph) showing the actually measured film thicknesses (1), (2), and (3) of the laminated coating film of Example 2 in the peel test. [Figure 17] It is a perspective view (perspective photograph) showing the actually measured film thicknesses (1), (2), and (3) of the laminated coating film of Example 3 in the peel test. [Figure 18] It is a perspective view (perspective photograph) showing the actually measured film thickness (1) of the laminated coating film of Example 4 in the peel test. [Figure 19] It is a perspective view (perspective photograph) showing the actually measured film thickness (2) of the laminated coating film of Example 4 in the peel test. [Figure 20] It is a perspective view (perspective photograph) showing the actually measured film thickness (3) of the laminated coating film of Example 4 in the peel test.

Mode for Carrying Out the Invention

[0015] The temporary building, laminated coating film, and method for forming the laminated coating film according to the present invention will be described with reference to FIGS. 1 to 20.

[0016] Temporary structures X include temporary toilets, temporary housing, temporary offices, temporary shops, temporary showers, etc.

[0017] In Figures 1 to 8, the temporary building X comprises the painted body Z, door 2, roof 3, floor 4, and laminated coating Y (composite coating).

[0018] The object to be coated Z (the object to be coated) is made of a synthetic resin. The object to be coated Z is, for example, a synthetic resin such as polyethylene resin (ultra-high molecular weight polyethylene resin, high-density polyethylene resin), polypropylene resin, or a mixed resin of polyethylene resin and polypropylene resin.

[0019] The object to be painted Z is, as shown in Figures 1 to 8, for example, the exterior wall body 1 (exterior wall body / booth body) of a temporary building X. The exterior wall body 1 (wall body) is formed in a cylindrical shape. The exterior wall body 1 is formed, for example, as a rectangular cylinder and has a plurality of exterior wall panels (panels to be painted), which include a front exterior wall panel 11 (front wall panel), left and right exterior wall panels 12, 13 (left and right wall panels), and a rear exterior wall panel 14 (rear wall panel). The exterior wall body 1 is formed in a cylindrical shape (rectangular cylinder) by each of the exterior wall panels 11 to 14. The exterior wall body 1 has an entrance / exit 5. The entrance / exit 5 opens to the inside and outside of the exterior wall body 1 by penetrating the exterior wall body 1 (front exterior wall panel 11) in a direction perpendicular to the direction A of the cylindrical centerline a of the exterior wall body 1.

[0020] Door 2 is positioned on the exterior wall 1 (front exterior wall panel 11) as shown in Figures 1, 2, and 4. Door 2 is rotatably mounted on the exterior wall 1 (exterior wall panel 11) to open and close the entrance 5.

[0021] As shown in Figures 1 to 3 and Figure 5, the roof 3 (ceiling board / ceiling wall) is fixed to the exterior wall 1 by closing one end 1A in the direction A of the centerline a of the exterior wall 1.

[0022] As shown in Figures 4 and 5, the floor body 4 (bottom plate) is fixed to the outer wall body 1 by closing the other end 1B of the cylinder in the direction A of the cylinder centerline a of the outer wall body 1.

[0023] As shown in Figures 4 and 5, the temporary building X is constructed with an exterior wall body 1 (each exterior wall panel 11-14), a roof 3, and a floor body 4 (floor panel), forming a space δ inside the exterior wall body 1. The exterior wall body 1 has a space δ inside it. The entrance 5 opens into the space δ of the exterior wall body 1.

[0024] As shown in Figures 1 to 8, the temporary structure X is, for example, a temporary toilet. The temporary toilet has a toilet bowl 21 (Western-style toilet), a flushing water tank 22, and a foot pedal 23 in the space δ of the outer wall body 1. By pressing the foot pedal 23, water from the flushing water tank 22 is supplied to the toilet bowl 21, and waste etc. in the toilet bowl 21 is discharged into the septic tank 24.

[0025] The laminated coating film Y (composite coating film) is formed on the surface of the synthetic resin substrate Z, as shown in Figures 1 to 8. The laminated coating film Y is formed, for example, on the outer surface 1a (outer surface) and inner surface 1b (inner surface) of the synthetic resin exterior wall body 1 (substrate Z) of a temporary building X. The laminated coating film Y is formed on the outer surface 1a and inner surface 1b of each exterior wall panel 11 to 14.

[0026] As shown in Figures 1 to 8, the laminated coating film Y has a base coat film Ya (peelable coating film) formed by applying (painting) an easily peelable paint to the surface of the object to be painted Z of the temporary building X, and a colored coating film Yb formed by applying (painting) a diluted paint (colored diluted paint) on top of the base coat film Ya (over the entire surface of the base coat film Ya). The laminated coating film Y has a peelable base coat film Ya formed by applying (painting) an easily peelable paint to the surface of the object to be painted Z. The laminated coating film Y is formed by laminating the base coat film Ya and the colored coating film Yb in that order on the surface of the object to be painted Z. The base coat film Ya is peelable from the object to be painted Z (surface of the object to be painted Z). The base coat film Ya is fixed (adhered) to the object to be painted Z (surface of the object to be painted Z) in a manner that allows it to be peeled from the object to be painted Z.

[0027] The laminated coating film Y has a primer coating film Ya (peelable coating film) formed by applying (painting) an easily peelable paint to the surface (each surface 1a, 1b) of the exterior wall body 1 (each exterior wall panel 11-14). The laminated coating film Y is formed by laminating the primer coating film Ya and the colored coating film Yb in that order on the surface of the exterior wall body 1 (each exterior wall panel 11-14). The primer coating film Ya is peelable from the exterior wall body 1 (each exterior wall panel 11-14). The primer coating film Ya is peelable from the exterior wall body 1 (each exterior wall panel 11-14) and is fixed (adhered) to the surface of the exterior wall body 1 (each exterior wall panel 11-14).

[0028] As shown in Figures 6 to 8, the primer film Ya is formed on the outer surface 1a of the exterior wall body 1 (each exterior wall panel 11 to 14), which is the body to be painted Z, by applying (painting) an easily peelable paint to the entire or partial outer surface 1a of the exterior wall body 1 (each exterior wall panel 11 to 14). The primer film Ya is formed on the inner surface 1b of the exterior wall body 1 (each exterior wall panel 11 to 14), which is the body to be painted Z, by applying (painting) an easily peelable paint to the entire or partial inner surface 1b of the exterior wall body 1 (each exterior wall panel 11 to 14). The primer film Ya is peelable from the exterior wall body 1 (each exterior wall panel 11 to 14). The primer coating Ya is peelable from the exterior wall body 1 (each exterior wall panel 11-14) and is fixed (adhered) to each surface 1a,1b of the exterior wall body 1 (each surface 1a,1b of each exterior wall panel 11-14). The thickness of the primer coating Ya is, for example, 5 μm (micrometers) to 50 μm (micrometers), and preferably 10 μm to 20 μm.

[0029] The easily peelable paint (components of the easily peelable paint) that forms the undercoat film Ya includes, for example, a urethane-modified resin (synthetic resin), a silicone-based additive (additive), and a solvent. The solvent of the easily peelable paint includes isobutyl acetate, ethylene glycol monobutyl ether, propylene glycol monomethyl ether acetate, dipropylene glycol monomethyl ether, methyl ethyl ketone, methyl isobutyl ketone, and n-propyl alcohol. The easily peelable paint is Musashi Paint Co., Ltd., product number "EC-NXC55-1022", product name "MPC Undercoat Clear".

[0030] As shown in Figures 6 to 8, the colored coating film Yb is formed on top of the undercoat film Ya by applying (painting) diluted paint (colored diluted paint) onto the undercoat film Ya (the entire surface of the undercoat film Ya), thereby laminating onto the undercoat film Ya (the entire surface of the undercoat film Ya). The colored coating film Yb is fixed (adhered / integrated) to the undercoat film Ya and can be peeled off together with the undercoat film Ya from the exterior wall body 1 (each exterior wall panel 11 to 14). The thickness of the colored coating film Yb is thicker than the thickness of the undercoat film Ya, for example, 40 μm (micrometers) to 280 μm.

[0031] The diluted paint (components of the diluted paint) that forms the colored coating film Yb includes a colored paint, a hardener, and a diluent (diluent). The diluted paint is a paint obtained by mixing the colored paint with the hardener and diluent, and then diluting the colored paint with the hardener and diluent.

[0032] The colored paint (components of the colored paint) includes, for example, a colored pigment, a polyol-modified resin (synthetic resin), additives, and a solvent. The colored pigments of the colored paint include titanium dioxide, carbon black, iron oxide, silicon dioxide, yellow iron oxide, etc. The additives of the colored paint include silicone-based additives, amide-based additives, ultraviolet absorbers, and acetylacetonate. The solvent of the colored paint includes n-butanol, ethyl acetate, butyl acetate, methyl isobutyl ketone, diisobutyl ketone, and acetylacetone. The curing agent is an isocyanate-based curing agent. The diluent is thinner. The colored paint is Musashi Paint Co., Ltd. product number "EC-NXE64-1023" and product name "MPC Beige," the hardener is Musashi Paint Co., Ltd. product number "Z-EC-H-760," and the diluent is Musashi Paint Co., Ltd. product number "Z-29625" and product name "Labasan Thinner."

[0033] For diluted paint, the weight ratio of colorant, hardener, and diluent (thinner) should be, for example, colorant:hardener:diluent (thinner) = 10:1:(1~5).

[0034] The laminated coating film Y (undercoat film Ya and colored coating film Yb) may be formed on at least one of the outer surface 1a and inner surface 1b of the exterior wall body 1 (each exterior wall panel 11 to 14). The thickness of the laminated coating film Y is the sum of the thickness of the undercoat film Ya (e.g., 5 μm to 50 μm) and the thickness of the colored coating film Yb (e.g., 40 μm to 280 μm), for example, 50 μm to 300 μm, and preferably 50 μm to 200 μm.

[0035] The object to be painted Z may be a door 2 made of synthetic resin of a temporary building X, and a laminated coating film Y is formed on the outer surface 2a (outer surface) of the door 2. The laminated coating film Y has a primer coating film Ya (peelable coating film) formed by applying (painting) an easily peelable paint to the outer surface 2a of the door 2, and a colored coating film Yb formed by applying (painting) a diluted paint (colored diluted paint) on top of the primer coating film Ya. The object to be painted Z may also be a roof 3 made of synthetic resin of a temporary building X, and a laminated coating film is formed on the outer surface (outer surface) of the roof 3. The laminated coating film Y has a primer coating film (peelable coating film) formed by applying (painting) an easily peelable paint to the outer surface of the roof 3, and a colored coating film formed by applying (painting) a diluted paint (colored diluted paint) on top of the primer coating film.

[0036] The method for forming a laminated coating film Y (the method for forming a laminated coating film Y on a temporary building X) includes, as shown in Figure 9, a primer coating film formation step (ST1), a primer coating film drying step (ST2), a colored coating film formation step (ST3), and a colored coating film drying step (ST4). The method for forming a laminated coating film Y is carried out in the order of primer coating film formation step (ST1), primer coating film drying step (ST2), colored coating film formation step (ST3), and colored coating film drying step (ST4).

[0037] <1> Undercoat film formation process (ST1) The primer coating formation step (ST1) involves applying (painting) an easily peelable paint to the surface of the object to be painted Z (the object to be painted Z of the temporary building X) [for example, the surface of the exterior wall 1 (each exterior wall panel 11-14)] to form a primer coating Ya on the surface of the object to be painted Z. The primer coating formation step (ST1) forms a primer coating Ya on the surface of the object to be painted Z with a film thickness of 5 μm (micrometers) to 50 μm (micrometers), preferably 10 μm to 20 μm.

[0038] <2> Undercoat film drying process (ST2) The primer coating drying step (ST2) dries the primer coating Ya formed on the surface of the object to be painted Z, making the primer coating Ya peelable from the object to be painted Z [for example, the exterior wall body 1 (each exterior wall panel 11-14)] and fixing (adhering) to the object to be painted Z. The primer coating drying step (ST2) dries the easily peelable paint applied to the surface of the object to be painted Z (object to be painted), making the primer coating Ya peelable from the object to be painted Z and fixing to the object to be painted Z. In the primer coating drying step (ST2), the primer coating Ya (easily peelable paint applied to the object to be painted Z) is dried at room temperature (room temperature drying), or dried at a temperature of 60°C for 30 minutes (heat drying).

[0039] <3> Colored coating film formation process (ST3) In the colored coating film formation process (ST3), after the undercoat film Ya has dried, a diluted paint containing colored paint, hardener, and diluent is applied (painted) onto the undercoat film Ya (the entire surface of the undercoat film Ya) to form a colored coating film Yb on top of the undercoat film Ya (the entire surface of the undercoat film Ya). In the colored coating film formation process (ST3), a colored coating film Yb with a film thickness of 40 μm to 280 μm is formed on top of the undercoat film Ya. In the colored coating film formation process (ST3), the diluted paint is applied (painted) onto the entire surface of the undercoat film Ya to laminate the colored coating film Yb onto the undercoat film Ya. The weight ratio of the diluted paint, colored paint, hardener, and diluent (thinner) is, for example, colored paint:hardener:diluent (thinner) = 10:1:(1~5).

[0040] <4> Colored paint film drying process (ST4) The colored coating drying process (ST4) dries the colored coating Yb formed on top of the undercoat coating Ya (over the entire surface of the undercoat coating Ya) to fix (adhere) the colored coating Yb to the undercoat coating Ya. The colored coating drying process (ST4) dries the diluted paint applied on top of the undercoat coating Ya (over the entire surface of the undercoat coating Ya) to fix (adhere) the colored coating Yb to the undercoat coating Ya, thereby forming a laminated coating Y (a laminated coating Y in which the undercoat coating Ya and the colored coating Yb are laminated in that order on the surface of the object to be coated) on the surface of the object to be coated Z. In the undercoat drying process (ST2), the colored coating Yb (diluted paint applied on top of the undercoat coating Ya) is dried at room temperature (room temperature drying), or dried at a temperature of 60°C for 30 minutes (heat drying). The thickness of the laminated coating film Y is the sum of the thickness of the undercoat coating film Ya (for example, 5 μm to 50 μm) and the thickness of the colored coating film Yb (for example, 40 μm to 280 μm), which is, for example, 50 μm to 300 μm, and preferably 50 μm to 200 μm.

[0041] In temporary structures, laminated coatings, and methods for forming laminated coatings, a laminated coating Y is formed by layering a primer coating Ya and a colored coating Yb in that order on the surface of a synthetic resin body Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3]. This allows the surface of the body Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3] to be colored with the colored coating of the laminated coating Y without having to replace the body Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3].

[0042] In temporary structures, laminated coatings, and methods for forming laminated coatings, by forming a primer coating Ya on the surface of the object to be painted Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3], the laminated coating Y (primer coating Ya together with colored coating Yb) can be peeled off from the object to be painted Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3]. By layering the primer coating Ya and colored coating Yb in various colors in that order on the surface of the object to be painted Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3] from which the colored coating Yb and primer coating Ya (laminated coating Y) have been peeled off, it becomes possible to accommodate the color specifications for coloring the surface of the object to be painted Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3]. In temporary structures, laminated coatings, and methods for forming laminated coatings, by forming a laminated coating Y (undercoat coating Ya and colored coating Yb) on the surface of the object to be coated Z, the surface of the object to be coated Z can be covered with the laminated coating Y to protect the surface of the substrate, and by peeling off the laminated coating Y from the object to be coated Z, the object to be coated Z can be used without the laminated coating Y.

[0043] As shown in Figure 10, the method for forming the laminated coating film Y includes a primer coating film formation step (ST1), a primer coating film drying step (ST2), a colored coating film formation step (ST3), a colored coating film drying step (ST4), and a laminated coating film peeling step (ST5), and is carried out in the following order: primer coating film formation step (ST1), primer coating film drying step (ST2), colored coating film formation step (ST3), colored coating film drying step (ST4), laminated coating film peeling step (ST5), primer coating film formation step (ST1), primer coating film drying step (ST2), colored coating film formation step (ST3), and colored coating film drying step (ST4). The laminated coating stripping process (ST5) involves peeling (removing) the laminated coating Y formed on the surface of the object to be coated Z from the surface of the object to be coated Z. In the method for forming a laminated coating film, which includes ST1 to ST5, the laminated coating film Y formed on the surface of the object to be coated Z is peeled off from the surface of the object to be coated Z, and a primer coating film is formed on the surface of the object to be coated again. At the same time, a colored coating film of the same or a different color as the colored coating film Yb of the laminated coating film Y peeled off from the surface of the object to be coated Z is formed on the primer coating film, thereby making it possible to accommodate the color specifications for coloring the surface of the object to be coated Z.

[0044] The laminated coating is formed by creating a primer film Ya on the surface of the object to be coated Z [exterior wall 1 (each exterior wall panel 11-14), door 2, roof 3] using an easily peelable paint, and then forming a colored coating film Yb on top of the primer film Ya using a diluted paint, resulting in a coating with excellent heat cycle resistance, acid resistance, alkali resistance, alcohol resistance, weather resistance, and moisture resistance.

[0045] In temporary buildings, laminated coatings, and methods for forming laminated coatings, the object to be painted Z (object to be painted) is not limited to the exterior wall 1 (each exterior wall panel 11-14), door 2, and roof 3 of the temporary building X, but can be anything made of synthetic resin, and may also be temporary equipment such as sinks, temporary enclosure panels, and louvered privacy panels. [Examples]

[0046] The performance (properties) of the laminated coating film according to the present invention were determined through "peel tests" and "environmental tests."

[0047] For the "peel test" and "environmental test," laminated coated boards (test boards) with a laminated coating (primer coating and colored coating) formed on the surface of the substrate were used. As described in Figure 9, the laminated coated plate was subjected to a primer coating formation process (ST1), a primer coating drying process (ST2), a colored coating formation process (ST3), and a colored coating drying process (ST4) to form a laminated coating (primer coating and colored coating) on ​​the surface of the substrate (object to be coated).

[0048] In the peeling and environmental tests, the easily peelable coating used was Musashi Paint Co., Ltd.'s product number "EC-NXC55-1022" and product name "MPC Undercoat Clear". The components and content (percentage) of the easily peelable paint for product number "EC-NXC55-1022" are shown in "Table 1".

[0049] [Table 1]

[0050] In "Table 1," under "Content (percentage)," "A" indicates a content of 5 percent or more. In "Table 1," under "Content (percentage)," "B" indicates a content of 1 percent or more but less than 5 percent.

[0051] In Table 1, the "Resin content" in the "Component Classification" section is composed of "urethane resin" and "cellulose acetate butyrate". The "resin content" in "Table 1" is 10.0 percent, which is the sum of the content of "urethane resin" (content: A) and the content of "cellulose acetate butyrate" (content: B).

[0052] The "solvent content" in the "Component Classification" of "Table 1" is composed of "acetic acid esters," "ketones," "alcohols," and "glycol ethers." The "solvent content" in "Table 1" is 89.9 percent, which is the sum of the content of "acetic acid esters" (content: A), "ketones" (content: A), "alcohols" (content: A), and "glycol ethers" (content: A).

[0053] In "Table 1," the "Auxiliary Agent" in the "Component Classification" is "Surface Modifier." The content of "auxiliary agents (surface modifiers)" in "Table 1" is 0.1 percent.

[0054] In Table 1, for "easily peelable paints," the sum of the resin content (percentage), solvent content (percentage), and auxiliary content (percentage) was set to 100 percent.

[0055] In the peel test and environmental test, the diluted paint was composed of a colored paint, a hardener, and a diluent. The "diluting solvent" in "diluted paint" is paint thinner. For the diluted paint, the weight ratio of colorant, hardener, and thinner was set to colorant:hardener:thinner (diluting solvent) = 10:1:(1~5).

[0056] In the peeling and environmental tests, the colored paint used was Musashi Paint Co., Ltd.'s product number "EC-NXE64-1023" and product name "MPC Beige". In the peeling and environmental tests, the hardener used was Musashi Paint Co., Ltd.'s product number "Z-EC-H-760". In the peeling and environmental tests, the diluent used was Musashi Paint Co., Ltd.'s product number "Z-29625" and product name "Rabasan Thinner". The components and percentage content of the colored paint for product number "EC-NXE64-1023" are shown in "Table 2".

[0057] [Table 2]

[0058] In "Table 2," under "Content (percentage)," "A" indicates a content of 5 percent or more. In "Table 2," under "Content (percentage)," "B" indicates a content of 1 percent or more but less than 5 percent. In Table 2, under "Content (percentage)," "C" indicates a content of less than 1 percent.

[0059] In Table 2, the "Resin content" in the "Component Classification" section consists of "Polyol resin," "Cellulose acetate butyrate," and "Plasticizer."

[0060] The "resin content" in "Table 2" is 31.4 percent, which is the sum of the content of "polyol resin" (content: A), the content of "cellulose acetate butyrate" (content: B), and the content of "plasticizer" (content: B).

[0061] The "Pigment Content" in the "Component Classification" of "Table 2" is composed of "Titanium Dioxide," "Silicon Dioxide," "Organic Polymer Matting Agent," "Yellow Iron Oxide," and "Carbon Black."

[0062] The "Pigment Content" in "Table 2" is 22.6 percent, which is the sum of the content of "Titanium Dioxide" (Content: A), "Silicon Dioxide" (Content: A), "Organic Polymer Matting Agent" (Content: C), "Yellow Iron Oxide" (Content: C), and "Carbon Black" (Content: C).

[0063] The "solvent content" in the "Component Classification" of "Table 2" is composed of "acetic acid esters," "ketones," and "alcohols."

[0064] The "solvent content" in "Table 2" is 45.1 percent, which is the sum of the content of "acetic acid esters" (content: A), the content of "ketones" (content: A), and the content of "alcohols" (content: C).

[0065] The "Auxiliary Agents" in the "Component Classification" of "Table 2" consisted of "Surface Modifiers," "UV Absorbers," "Additives," "Precipitation Inhibitors," and "Curing Catalysts for Urethane."

[0066] The content of "auxiliary agents" in "Table 2" is 0.9 percent, and is the sum of the content of "surface modifiers" (content: C), "ultraviolet absorbers" (content: C), "additives" (content: C), "precipitation inhibitors" (content: C), and "urethane curing catalysts" (content: C).

[0067] In Table 2, the "colored paint" was defined as the sum of the "resin content" (percentage), "solvent content" (percentage), and "auxiliary agent content" (percentage), with the total being set to 100 percent.

[0068] 1. Peel test The peel test will be explained with reference to Figures 11 to 20.

[0069] <1> Pattern of peel test Peel tests were performed on Examples 1, 2, 3, and 4.

[0070] Example 1 is a "laminated coated plate 1 (test plate 1)," in which a laminated coating (undercoat and colored coating) was formed on the surface of the substrate by the laminated coating formation method described in Figure 9 (see Figures 11 to 15). In Example 1, the substrate was formed from polyethylene resin into an uneven shape (an uneven polyethylene resin plate). In Example 1, the target film thickness of the undercoat was set to 5 μm to 50 μm. In Example 1, the target film thickness of the laminated coating was set to 80 μm to 150 μm.

[0071] Example 2 is a "laminated coated plate 2 (test plate 2)," in which a laminated coating (undercoat and colored coating) was formed on the surface of the substrate by the laminated coating formation method described in Figure 9 (see Figure 16). In Example 2, the substrate was formed from polyethylene resin into an uneven shape (an uneven polyethylene resin plate). In Example 2, the target film thickness of the undercoat was set to 5 μm to 50 μm. In Example 2, the target film thickness of the laminated coating was set to 80 μm to 150 μm.

[0072] Example 3 is a "laminated coated plate 3 (test plate 3)," in which a laminated coating (undercoat and colored coating) was formed on the surface of the substrate by the laminated coating formation method described in Figure 9 (see Figure 17). In Example 3, the substrate was formed from polyethylene resin into an uneven shape (an uneven polyethylene resin plate). In Example 3, the target film thickness of the undercoat was set to 5 μm to 50 μm. In Example 3, the target film thickness of the laminated coating was set to 30 μm to 100 μm.

[0073] Example 4 is a "laminated coated plate 4 (test plate 4)," in which a laminated coating (undercoat and colored coating) was formed on the surface of the substrate by the laminated coating formation method described in Figure 9 (see Figures 18 to 20). In Example 4, the substrate was formed from polyethylene resin into an uneven shape (an uneven polyethylene resin plate). In Example 4, the target film thickness of the undercoat was set to 5 μm to 50 μm. In Example 4, the target film thickness of the laminated coating was set to 280 μm to 350 μm.

[0074] <2> Method of peel test In the peel test, a portion of the laminated coating was peeled off from the substrates of Examples 1 to 4 (laminated coated plates 1 to 4). In the peel test, the film thickness (measured film thickness) of the laminated coating formed on the surface of the substrates of Examples 1 to 4 was measured. The measured film thickness of the laminated coating was measured at three locations on the laminated coating. The measured film thickness of the laminated coating was measured using a digital caliper (caliper).

[0075] In Examples 1 to 4 (Laminated Coating Plates 1 to 4), the measured film thickness of the laminated coating is shown in Table 3. In Table 3, "Measured Film Thickness of Laminated Coating (1)", "Measured Film Thickness of Laminated Coating (2)", and "Measured Film Thickness of Laminated Coating (3)" are the film thickness of the laminated coating measured at three measurement locations on the laminated coating (see Figures 13 to 20).

[0076] [Table 3]

[0077] <3> Results of the peel test In Example 1, as shown in Figure 10, it was confirmed that the laminated coating film (a base coating film with a colored coating film laminated on it) could be peeled off the polyethylene resin substrate (the object to be coated) by pulling the laminated coating film of the laminated coating plate 1 against the substrate (the object to be coated).

[0078] In Example 1, as shown in Figures 10 and 11, it was confirmed that the laminated coating remained fixed (adhered) to the surface of the polyethylene resin substrate (object to be coated) without peeling off unless the laminated coating was pulled and peeled off the surface of the substrate. In Example 1, the undercoat coating was fixed (adhered) to the surface of the polyethylene resin substrate by an easily peelable paint, forming a laminated coating (undercoat coating and colored coating) on ​​the surface of the substrate. The laminated coating (undercoat coating) adhered (adhered) to the surface of the polyethylene resin substrate along the uneven shape of the substrate, covering and protecting the surface of the substrate.

[0079] In Example 1, as shown in Figures 13 to 15 and Table 3, the measured film thickness of the laminated coating (1) was 100 μm (micrometers), the measured film thickness of the laminated coating (2) was 90 μm (micrometers), and the measured film thickness of the laminated coating (3) was 100 μm (micrometers). In Example 1, the maximum measured film thickness of the laminated coating film was 100 μm (micrometers), the minimum measured film thickness of the laminated coating film was 90 μm (micrometers), and the average measured film thickness of the laminated coating film was 96.6 μm (micrometers).

[0080] In Example 2, as shown in Figure 16, it was confirmed that the laminated coating film (a base coating film with a colored coating film laminated on it) could be peeled off the polyethylene resin substrate (the object to be coated) by pulling the laminated coating film of the laminated coating plate 2 against the substrate (the object to be coated).

[0081] In Example 2, as shown in Figure 16, it was confirmed that the laminated coating remained fixed (adhered) to the surface of the polyethylene resin substrate (the object to be coated) without peeling off unless the laminated coating was pulled and peeled off the surface of the substrate. In Example 2, the undercoat coating was fixed (adhered) to the surface of the polyethylene resin substrate by an easily peelable paint, forming a laminated coating (undercoat coating and colored coating) on ​​the surface of the substrate. The laminated coating (undercoat coating) adhered (adhered) to the surface of the polyethylene resin substrate along the uneven shape of the substrate, covering and protecting the surface of the substrate.

[0082] In Example 2, as shown in Figure 16 and Table 3, the measured film thickness of the laminated coating (1) was 130 μm (micrometer), the measured film thickness of the laminated coating (2) was 130 μm (micrometer), and the measured film thickness of the laminated coating (3) was 130 μm (micrometer). In Example 2, the maximum measured film thickness of the laminated coating film was 130 μm (micrometers), the minimum measured film thickness of the laminated coating film was 130 μm (micrometers), and the average measured film thickness of the laminated coating film was 130 μm (micrometers).

[0083] In Example 3, as shown in Figure 17, it was confirmed that the laminated coating film (a base coating film with a colored coating film laminated on it) of the laminated coating film plate 3 could be peeled off from the polyethylene resin substrate (the object to be coated) by pulling the laminated coating film of the laminated coating film plate 3 against the substrate (the object to be coated).

[0084] In Example 3, as shown in Figure 17, it was confirmed that the laminated coating remained fixed (adhered) to the surface of the polyethylene resin substrate (object to be coated) without peeling off unless the laminated coating was pulled and peeled off the surface of the polyethylene resin substrate. In Example 3, the undercoat coating was fixed (adhered) to the surface of the polyethylene resin substrate by an easily peelable paint, forming a laminated coating (undercoat coating and colored coating) on ​​the surface of the substrate. The laminated coating (undercoat coating) adhered (adhered) to the surface of the polyethylene resin substrate along the uneven shape of the substrate, covering and protecting the surface of the substrate.

[0085] In Example 3, as shown in Figure 17 and Table 3, the measured film thickness of the laminated coating (1) was 50 μm (micrometer), the measured film thickness of the laminated coating (2) was 60 μm (micrometer), and the measured film thickness of the laminated coating (3) was 50 μm (micrometer). In Example 3, the maximum measured film thickness of the laminated coating was 60 μm (micrometers), the minimum measured film thickness of the laminated coating was 50 μm (micrometers), and the average measured film thickness of the laminated coating was 53.3 μm (micrometers).

[0086] In Example 4, as shown in Figures 18 to 20, it was confirmed that the laminated coating film (a base coating film with a colored coating film laminated on it) could be peeled off the polyethylene resin substrate (the object to be coated) by pulling the laminated coating film of the laminated coating plate 4 against the substrate (the object to be coated).

[0087] In Example 4, as shown in Figures 18 to 20, it was confirmed that the laminated coating remained fixed (adhered) to the surface of the polyethylene resin substrate (the object to be coated) without peeling off unless the laminated coating was pulled and peeled from the surface of the polyethylene resin substrate. In Example 4, the undercoat coating was fixed (adhered) to the surface of the polyethylene resin substrate by an easily peelable paint, forming a laminated coating (undercoat coating and colored coating) on ​​the surface of the substrate. The laminated coating (undercoat coating) adhered (adhered) to the surface of the polyethylene resin substrate along the uneven shape of the substrate, covering and protecting the surface of the substrate.

[0088] In Example 4, as shown in Figures 18 to 20 and Table 3, the measured film thickness of the laminated coating (1) was 340 μm (micrometer), the measured film thickness of the laminated coating (2) was 330 μm (micrometer), and the measured film thickness of the laminated coating (3) was 340 μm (micrometer). In Example 4, the maximum measured film thickness of the laminated coating was 340 μm (micrometers), the minimum measured film thickness of the laminated coating was 330 μm (micrometers), and the average measured film thickness of the laminated coating was 336.3 μm (micrometers).

[0089] <4> Evaluation of peel test From Examples 1, 2, 3, and 4, it can be shown that the laminated coating (undercoat) can be peeled off the surface of the polyethylene resin substrate by setting the thickness of the laminated coating to 50 μm (micrometers) to 340 μm (micrometers). From Examples 1, 2, 3, and 4, it can be shown that a laminated coating (undercoat) can be fixed (adhered) to the surface of a polyethylene resin substrate by setting the thickness of the laminated coating to 50 μm (micrometers) to 340 μm (micrometers), thereby forming a layer on the surface of the substrate (object to be coated). From Examples 1, 2, 3, and 4, it is possible to form a laminated coating film on the surface of a polyethylene resin substrate, following the uneven shape of the substrate. Thus, the thickness of the laminated coating formed on the surface of a polyethylene resin substrate (substrate to be coated) can be 50 μm (micrometers) to 300 μm (micrometers). For example, considering the cost of each paint (easily removable paint and diluted paint) used to form the laminated coating on the substrate surface, it is preferable to have a thickness of 50 μm (micrometers) to 200 μm (micrometers). The laminated coating can be formed on the surface of a polyethylene resin substrate with a minimum coating thickness of 50 μm (micrometers) and a maximum coating thickness of 200 μm (300 μm or 340 μm), within a range of minimum to maximum coating thickness.

[0090] Generally, when paint is applied to polyethylene resin material, the paint film tends to peel off the polyethylene resin material, making it difficult to form a paint film on the polyethylene resin material. Examples 1, 2, 3, and 4 demonstrate that a laminated coating can be formed by forming a primer coating with an easily peelable paint and a colored coating with a diluted paint, thereby fixing (adhering) the laminated coating to the surface of a polyethylene resin substrate (substrate), and the laminated coating can be peeled off the surface of the polyethylene resin substrate (substrate) by pulling on the laminated coating formed on the substrate.

[0091] From Examples 1, 2, 3, and 4, the present invention provides a temporary building, a laminated coating, and a method for forming a laminated coating. This is achieved by applying an easily peelable paint, similar to those described in Figures 1 to 9, to the surface of a polyethylene resin substrate to form a primer coating (peelable coating), and then applying a diluted paint, similar to those described in Figures 1 to 9, on top of the primer coating (over the entire surface of the primer coating) to form a colored coating, thereby forming a colored coating (colored laminated coating) on ​​the surface of the polyethylene resin substrate. Furthermore, from Examples 1, 2, 3, and 4, the present invention provides a temporary building, a laminated coating film, and a method for forming a laminated coating film. By forming a laminated coating film on the surface of a polyethylene resin substrate and covering the surface of the substrate with the laminated coating film, the surface of the polyethylene resin substrate can be protected, and the laminated coating film can function as a surface protective material for the polyethylene resin substrate. Furthermore, from Examples 1, 2, 3, and 4, the present invention enables the formation of a laminated coating film on the surface of a polyethylene resin substrate with a uniform film thickness (approximately uniform film thickness) along the uneven surface of the substrate, even if the substrate surface has an uneven shape.

[0092] 2. Environmental testing Let me explain environmental testing.

[0093] <1> Environmental testing methods Environmental testing was conducted on Example 5. Example 5 is a "laminated coated plate 5 (test plate 5)," in which a laminated coating (primer coating and colored coating) was formed on the surface of the substrate by the laminated coating formation method described in Figure 9. In Example 5, the substrate was formed from a flat sheet of polyethylene resin. In Example 5, the thickness of the undercoat film was set to 5 μm to 50 μm. In Example 5, the thickness of the laminated coating film was set to 80 μm to 150 μm.

[0094] <2> Types of environmental testing Environmental tests were conducted on "heat cycle resistance," "acid resistance," "alkali resistance," "alcohol resistance," "weather resistance (1)," "weather resistance (2)," and "humidity resistance."

[0095] <3> Methods and evaluation of each test in environmental testing For the "heat cycle resistance" test, Example 5 (laminated coated plate 5) was alternately placed at a temperature of -30°C for 3 hours and at a temperature of 60°C for 3 hours. The "heat cycle resistance" test was performed on Example 5 (laminated coated plate 5) for 10 cycles, with one cycle consisting of 3 hours at -30°C and one hour at 60°C. The evaluation of the "heat cycle resistance" test is whether the laminated coating can be peeled off from the substrate of Example 5 (laminated coated plate 5) after the "heat cycle resistance" test.

[0096] For the "acid resistance" test, 5 cc (cubic centimeters) of 0.1 N (mol / L) sulfuric acid was applied to the laminated coating (surface of the laminated coating) of Example 5 (laminated coating plate 5), and the laminated coating was left in a state of sulfuric acid coating at room temperature for 24 hours. The evaluation of the "acid resistance" test is that there are no abnormalities on the surface of the laminated coating of Example 5 (laminated coating plate 5) after the "acid resistance" test.

[0097] For the alkali resistance test, 5 cc (cubic centimeters) of 0.1 N (mol / L) sodium hydroxide was applied to the laminated coating (surface of the laminated coating) of Example 5 (laminated coating plate 5), and the laminated coating was left with sodium hydroxide applied at a temperature of 55°C for 4 hours. The evaluation of the "alkali resistance" test is that there are no abnormalities on the surface of the laminated coating of Example 5 (laminated coating plate 5) after the "alkali resistance" test.

[0098] The "alcohol resistance" test involved applying 95 percent ethanol, 500 g / cm², to the laminated coating of Example 5 (laminated coating plate 5). 2 (grams / square centimeter) was applied, and the laminated coating of Example 5 (laminated coating plate 5) was rubbed 100 times. The evaluation of the "alcohol resistance" test is that, after the "alcohol resistance" test, the substrate on the side where the laminated coating film was formed in Example 5 (laminated coating plate 5) is not exposed.

[0099] The "Weather Resistance (1)" test was conducted using a sunshine weather meter (accelerated weathering tester) in accordance with the Japanese Industrial Standard: "JIS D 0205". In the "Weather Resistance (1)" test, Example 5 (laminated coated board 5) was placed inside the sunshine weather meter for 250 hours at a black panel temperature of 83°C controlled by a black panel, without rain. The evaluation of the "weather resistance (1)" test is that, after the "weather resistance (1)" test, there are no abnormalities on the surface of the laminated coating of Example 5 (laminated coated plate 5), and the laminated coating can be peeled off from the substrate of Example 5 (laminated coated plate 5).

[0100] The "Weather Resistance (2)" test was conducted using a sunshine weather meter (accelerated weathering tester) in accordance with the Japanese Industrial Standard: "JIS D 0205". For the "Weather Resistance (2)" test, Example 5 (laminated coated board 5) was placed inside the sunshine weather meter for 500 hours at a black panel temperature of 83°C controlled by a black panel, without rain. The evaluation of the "weather resistance (2)" test is that, after the "weather resistance (2)" test, there are no abnormalities on the surface of the laminated coating of Example 5 (laminated coated plate 5), and the laminated coating can be peeled off from the substrate of Example 5 (laminated coated plate 5).

[0101] For the "moisture resistance" test, Example 5 (laminated coated board 5) was placed under conditions of 98 percent relative humidity and 80°C for 500 hours. The evaluation of the "moisture resistance" test is whether the laminated coating can be peeled off from the substrate of Example 5 (laminated coated plate 5) after the "moisture resistance" test.

[0102] <4> Results of each environmental test In Example 5 (Laminated Coated Plate 5), the laminated coating (undercoat and colored coating) could be peeled off the substrate of the laminated coated plate 5 after the "heat cycle resistance" test. Example 5 passed the "heat cycle resistance" test.

[0103] In Example 5 (Laminated Coated Plate 5), no abnormalities were found in the laminated coating of Laminated Coated Plate 5 after the "acid resistance" test. Example 5 passed the "acid resistance" test.

[0104] In Example 5 (Laminated Coated Plate 5), no abnormalities were found in the laminated coating of laminated coated plate 5 after the "alkali resistance" test. Example 5 passed the "alkali resistance" test.

[0105] In Example 5 (Laminated Coating 5), after the "alcohol resistance" test, there was no exposure of the substrate on the side where the laminated coating was formed on Example 5 (Laminated Coating Plate 5). Example 5 passed the "alcohol resistance" test.

[0106] In Example 5 (Laminated Coated Board 5), no abnormalities were found in the laminated coating of the laminated coated board 5 after the "Weather Resistance (1)" test. In Example 5 (Laminated Coated Board 5), the laminated coating (undercoat and colored coating) could be peeled off from the substrate of the laminated coated board 5 after the "Weather Resistance (1)" test. Example 5 passed the "Weather Resistance (1)" test.

[0107] In Example 5 (Laminated Coated Board 5), no abnormalities were found in the laminated coating of the laminated coated board 5 after the "Weather Resistance (2)" test. In Example 5 (Laminated Coated Board 5), the laminated coating (undercoat and colored coating) could be peeled off from the substrate of the laminated coated board 5 after the "Weather Resistance (2)" test. Example 5 passed the "Weather Resistance (2)" test.

[0108] In Example 5 (Laminated Coated Board 5), the laminated coating (undercoat and colored coating) could be peeled off the substrate of the laminated coated board 5 after the "humidity resistance" test. Example 5 passed the "humidity resistance" test.

[0109] From Example 5, it was confirmed that the laminated coating film formed on the surface of the polyethylene resin substrate (substrate to be coated) was a coating film with excellent "heat cycle resistance," "acid resistance," "alkali resistance," "alcohol resistance," "weather resistance," and "moisture resistance" in each test method of the "environmental test."

[0110] From Example 5 onward, the present invention provides a temporary building, a laminated coating film, and a method for forming a laminated coating film, which, by forming a primer film with an easily peelable paint and a colored coating film with a diluted paint, can form a laminated coating film (primer film and colored coating film) with excellent heat cycle resistance, acid resistance, alkali resistance, alcohol resistance, weather resistance, and moisture resistance on the surface of a polyethylene resin substrate. [Industrial applicability]

[0111] The present invention is ideal for applying paint to the surface of a synthetic resin substrate to form a colored coating on the substrate. [Explanation of symbols]

[0112] X Temporary building Y Laminated coating (composite coating) Z Object to be painted Ya Undercoat Coat Yb colored coating 1 External wall body (body to be painted) 11~14 Exterior wall board (painted board) 2 doors 3. Roof (Ceiling) 4 Floor body (floorboard)

Claims

1. A temporary structure comprising a painted surface and a laminated coating, The body to be painted is Made of synthetic resin, The aforementioned laminated coating film is A primer coating film formed by applying an easily peelable paint to the surface of the object to be coated, The device has a colored coating film formed by applying diluted paint on the aforementioned undercoat coating film, The aforementioned diluted paint is It contains a colored paint, a hardener, and a diluent. The aforementioned undercoat film is It is peelable off the painted body. A temporary structure characterized by the following:

2. The body to be painted is Formed from polyethylene resin The temporary building according to feature 1.

3. A primer coating film formed by applying an easily peelable paint to the surface of a synthetic resin substrate, The device has a colored coating film formed by applying diluted paint on the aforementioned undercoat coating film, The aforementioned diluted paint is It contains a colored paint, a hardener, and a diluent. The aforementioned undercoat film is It is peelable off the painted body. A laminated coating film characterized by the following features.

4. The body to be painted is Formed from polyethylene resin The laminated coating film according to feature 3.

5. A primer coating film formation step involves applying an easily peelable paint to the surface of a synthetic resin object to be coated to form a primer coating film on the surface of the object to be coated, A primer coating drying step is performed to dry the primer coating formed on the surface of the object to be coated, so that the primer coating can be peeled off the object to be coated and fixed to the object to be coated. After the aforementioned undercoat film has dried, a colored coating film formation step is performed by applying a diluted paint containing a colored paint, a hardener, and a diluent solvent onto the undercoat film to form a colored coating film on the undercoat film. The method includes a colored coating drying step, in which the colored coating formed on the primer coating is dried to fix the colored coating to the primer coating, thereby forming a laminated coating on the surface of the object to be coated. A method for forming a laminated coating film, characterized by the features described above.

6. A primer coating film formation step involves applying an easily peelable paint to the surface of a synthetic resin object to be coated to form a primer coating film on the surface of the object to be coated, A primer coating drying step is performed to dry the primer coating formed on the surface of the object to be coated, so that the primer coating can be peeled off the object to be coated and fixed to the object to be coated. After the aforementioned undercoat film has dried, a colored coating film formation step is performed by applying a diluted paint containing a colored paint, a hardener, and a diluent solvent onto the undercoat film to form a colored coating film on the undercoat film. A colored coating drying step is performed to dry the colored coating formed on the undercoat coating and fix the colored coating to the undercoat coating, thereby forming a laminated coating on the surface of the object to be coated. The process includes a step of peeling off the laminated coating film formed on the surface of the object to be coated, The following steps are performed in order: the primer coating film formation step, the primer coating film drying step, the colored coating film formation step, the colored coating film drying step, the laminated coating film peeling step, the primer coating film formation step, the primer coating film drying step, the colored coating film formation step, and the colored coating film drying step. A method for forming a laminated coating film, characterized by the features described above.

7. The body to be painted is Formed from polyethylene resin A method for forming a laminated coating film according to claim 5 or 6, characterized by the features described above.

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