JPH05338397A - Metal plate with brick-like pattern - Google Patents

Abstract

PURPOSE:To prevent-the damage of a pattern and to enhance a three- dimensional feeling and a productivity by a method wherein a resin coating material made of a projected part-forming resin coating and a recessed part- forming shrinkable coating is applied on a metal plate through a primer and baked to form a pattern, and the resin coating material is embossed correspondingly to the pattern. CONSTITUTION:On the top and rear surfaces of a metal plate substrate 1 of a galvanized sheet iron or the like, primer layers 2 are provided. On the surface primer layer 2, a resin coating layer 3 consisting of an undercoat layer 4 and a topcoat layer 5 is provided by baking. The undercoat layer 4 is made of an alkyd resin coating to be provided with a weatherability and a corrosion resistance. The topcoat layer is made of a resin coating 6a silimar to the resin coating of the undercoat layer 4 for forming projected parts 6 of a brick-like pattern and a shrinkable coating 7a shrinking in a baking process for forming recessed parts 7 of the pattern. In this manner, after being formed into a brick- like pattern in a baking process, the resin coating layer is embossed correspondingly to the recessed and projected pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal plate having a brick pattern (hereinafter, simply referred to as a metal plate) which can be used as a building material for building, for forming an outer wall of a building or a structure.

[0002]

2. Description of the Related Art Conventionally, as a metal plate used for a building material, an uneven brick pattern is formed, a metal plate is embossed with an embossing roller, a filler or an aggregate is used. Typical examples include those formed by applying the blended emulsion paint on the surface of a metal plate, and those in which paints of a plurality of colors are overlaid and a brick-like pattern is formed due to the difference in shade of color.

[0003]

However, in the above, only the embossing is performed, the pattern of brick tone does not appear clearly, and there is a drawback that the coating film on the surface of the metal plate is damaged. There is a small difference in unevenness and lack of clarity, and there is a defect that the surface is easily scratched by the filler and the aggregate, so that the three-dimensional effect of unevenness is not felt at all, and since the paint is applied twice To
There are drawbacks that productivity is inferior because the process up to formation becomes complicated in various ways.

[0004]

In the present invention, therefore, a primer layer and a resin-based coating layer are formed by drying on the surface of a thin metal plate which is a substrate, and the resin-based coating layer is a brick-shaped convex pattern. Since it was formed from the resin-based paint that constitutes the part and the shrinking paint that constitutes the recess, when the resin-based coating film layer is dried and cured, the shrinkable paint shrinks to form a fine uneven band. In addition, the embossing was applied so that the convex part of the brick pattern becomes a mountain shape and the concave part becomes a valley shape, so the light and shade of the brick pattern by the resin coating layer matches the three-dimensional effect of the embossing. The present invention proposes a metal plate having a brick-like pattern with a brick-like pattern that is further emphasized to improve the design and has a good finish and improved productivity.

[0005]

The metal plate A according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing a brick pattern structure of a metal plate according to the present invention. As shown in FIG. 2 corresponding to the cross-sectional view taken along the line EE of FIG. 1, a substrate 1, a primer layer 2 and a resin are shown. It is formed from the system coating layer 3.

The substrate 1 serves as a base material for the metal plate A, and includes a galvanized steel plate, an aluminum plate, a stainless plate,
It is a thin metal plate such as a copper plate, a titanium plate, a clad steel plate, or a composite plate of these, and has a layer thickness of 270 to 270.
It is a long plate of about 600 μ.

The primer layer 2 is formed by subjecting a front surface and a back surface of the substrate 1 to a chemical conversion treatment film by a primer treatment.
The resin coating layer 3 is roughly divided into an undercoat layer 4 and an overcoat layer 5 as shown in FIG. The undercoat layer 4 is an alkyd resin paint, a melamine alkyd resin paint, an acrylic resin paint, a polyurethane resin paint, an epoxy resin paint,
Apply polyester resin paints, polyester resin paints for high processing, tar epoxy resin paints, silicone paints, etc. by curtain flow coater, roll flow coater, spray coating, etc., baking drying, room temperature drying, powder coating, etc. It is formed by doing. The undercoat layer 4 imparts weather resistance and corrosion resistance to the metal plate A and serves as a base coat for the metal plate A.

As shown in FIG. 1, the overcoat layer 5 is divided into a convex portion 6 and a concave portion 7 having a brick pattern. That is, in FIG. 2, the convex portion 6 is formed of the resin-based paint 6a equivalent to the undercoat layer 4, and the concave portion 7 is formed of the shrinkable paint 7a.

The shrink paint 7a is a block made of a curing agent,
Shrinkage on the surface of the coating film (Wrinkle) in the process of forming the coating film by utilizing the phenomenon such as air oxidation of unsaturated double bonds.
This is a coating material that causes the occurrence of unevenness. After the coating material is hardened as shown in FIG. 2, fine uneven zones are formed to promote the density of the bricks. Therefore, it is particularly effective when used in the concave portions 7 having a brick pattern.

When the overcoat layer 5 is formed and dried in this way, as shown in FIG. 3, the shrinking paint 7a in the concave portion 7 of the brick pattern shrinks to form a fine uneven band, and the brick pattern is formed. The metal plate A becomes clear and the shade is further emphasized.

In addition, the embossing process is performed by using a metal embossing roller corresponding to the brick pattern formed on the surface of the metal plate A as described above, or by pressing or injection molding. That is, the convex portions 6 in FIG. 2 are embossed in a mountain shape, and the concave portions 7 are embossed in a valley shape.
The metal plate A as shown in FIG. Metal plate A
By adding embossed irregularities to the brick pattern formed by the resin coating layer 3 on the surface of the, the shade of the brick pattern is more three-dimensionally emphasized and the design is improved.

Further, as the use of the metal plate A as a building material,
For example, as shown in FIG. 4, a thin metal surface material B and a sheet-shaped back surface material C are used as a surface material B for metal siding in which a core material D made of a synthetic resin foam is sandwiched. , Which is a building material with a design that is not present in conventional metal building materials.

What has been described above is one embodiment of the metal plate A according to the present invention, and a metal plate A as shown in FIGS. That is, FIG. 5A shows an example in which the fluororesin layer 8 is formed on the surface of the overcoat layer 5 of the metal plate A to improve the protection of the decorative surface and the weather resistance.

The component of the fluororesin layer 8 is a homopolymer of vinylidene fluoride or a copolymer of vinylidene fluoride with a monomer such as ethylene fluoride, propylene fluoride, ethylene chlorofluoride vinyl fluoride and the like. Vinylidene fluoride resin made of a polymer, homopolymer of methyl methacrylate, or polymethyl methacrylate copolymerizable with methyl methacrylate, acrylic rubber, methacrylic acid ester, butyl acrylate, acrylic acid ester, styrene, α-Methylstyrene, acrylonitrile, acrylic acid, having a translucent to transparent color containing a methacrylic acid ester-based resin made of a copolymer with a monomer such as an ethylenically unsaturated monomer as a main component, in the form of a paint, Alternatively, it is formed in a film shape.

The fluororesin layer 8 formed in the form of paint is applied on the surface of the overcoat layer 5 in the same manner as the undercoat layer 4 and baked and dried. It is laminated on the surface of the top coat layer 5 by using heat fusion, aluminum foil fusion, various adhesives and the like.
In order to improve the weather resistance in the fluororesin layer 8,
It may be formed by containing an inorganic pigment, an ultraviolet absorber, a pigment dispersant, a coupling agent and the like.

FIG. 5B shows a metal formed by applying a shrinkage paint 7a on the surface of the undercoat layer 4 in advance and drying it, and then applying a transparent resin paint 6a or a fluororesin layer 8 and drying it. An example of the plate A, FIG. 5 (c) shows that the surface of the primer layer 2 is preliminarily coated with the shrink paint 7a and dried, and then the transparent resin paint 6a or the fluororesin layer 8 is applied and dried to form the undercoat layer. An example of the metal plate A formed by omitting 4 is shown in FIG.
(D) is an example of the metal plate A in which only the shrink paint 7a is applied to the surface of the undercoat layer 4 and dried to form a brick pattern.

[0017]

As described above, according to the metal plate having the brick pattern according to the present invention, the primer layer and the resin coating film layer are formed by drying on the surface of the thin metal plate serving as the substrate. Since the resin-based coating film layer is formed from the resin-based coating material forming the convex portion of the brick pattern and the shrinking coating material forming the recessed portion, shrinkage occurs when the resin-based coating film layer is dried and cured to form. Since the paint shrinks to form a fine uneven band, and the embossing is applied so that the convex parts of the brick pattern are mountain-shaped and the concave parts are valley-shaped. And the three-dimensional effect of the embossing is matched, the brick pattern is further emphasized to improve the design, and the finish is good, and the metal plate has the brick pattern with improved productivity. There are effects and features.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a metal plate having a brick pattern according to the present invention.

FIG. 2 is an explanatory diagram showing a conceptual cross-sectional view of the metal plate.

FIG. 3 is a perspective view showing a typical example of the metal plate.

FIG. 4 is an explanatory diagram showing an example of a building material using the metal plate.

FIG. 5 is an explanatory diagram showing another example of the metal plate.

[Explanation of symbols]

 A Metal plate having a brick pattern 1 Substrate 2 Primer layer 3 Resin coating layer 4 Undercoat layer 5 Overcoat layer 6 Convex portion 6a Resin coating 7 Recess 7a Shrinking coating 8 Fluororesin layer

Claims (1)

[Claims] 1. At least a primer layer and a resin-based coating layer are formed on the surface of a metal plate to be a substrate, and the resin-based coating layer comprises a resin-based coating material forming a convex portion of a brick pattern, Consists of a shrink paint that constitutes the recess, and when the resin-based coating layer is formed by baking, the shrink paint shrinks to form a brick-like pattern, and the convex part of the brick-like pattern is formed into a mountain shape. A metal plate having a brick pattern, wherein the recess is embossed in a valley shape.