JP2812493B2 - Architectural board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention forms a plurality of uneven patterns on the decorative surface of a thin metal plate, and clarifies the outline of each step from the others to promote a three-dimensional effect. It relates to the architectural plate that was planned.

[Conventional technology]

A thin metal plate, for example, a color steel plate, is a flat plate, or a plate material embossed for the purpose of improving the designability and strength of a decorative surface and preventing pecking, as the front and back surfaces.

[Problems to be solved by the invention]

However, architectural plates using thin metal sheets as they are cannot be smooth and monotonous.
There was a disadvantage in lack of three-dimensional feeling, natural feeling, and fashionability. Therefore, for example, architectural plates embossed into thin metal plates are also on the market. Although this type of architectural board has been considerably improved in smoothness, it has drawbacks in that it lacks natural feeling, three-dimensional appearance, and weather resistance.

[Means for solving the problem]

The present invention, in order to remove such a drawback, by forming an uneven pattern surface with a plurality of steps of height difference by embossing,
In addition to applying a decorative coating to protect the entire uneven surface, the viscosity, fluidity, and surface tension of the coating make the coating with a convex angle (contour) in each step of the uneven pattern thinner than the flat surface. At the same time, it is formed thicker from the top surface of the convex pattern to the bottom surface of the concave pattern, and furthermore, the bent portion of the concave angle of each step is thicker, and in the thin coating part, the dough is clearly raised and the contour of the convex pattern is formed. In the thick film part, the color of the coating film itself becomes clear,
In addition, the film thickness becomes constant at the central part where the area of the uneven pattern is large, and gradually becomes thinner in the narrow part as it approaches the bent part of the uneven pattern, and the whole is thinner at the top of the convex part of the narrower area, We propose an architectural board in which the periphery of the concave pattern is formed on a decorative surface covered with a thick film, and the weather resistance, three-dimensional appearance and natural feeling are greatly enhanced by the multi-stage embossing and the synergistic effect of the coating film. .

〔Example〕

Hereinafter, the architectural plate according to the present invention will be described in detail with reference to the drawings. 1 (a) and 1 (b) are plan views showing a part of a decorative surface of a building plate according to the present invention, 1 is a building plate, 2 is a base coat, 3 is a decorative surface, and 4 is a decorative surface. The concave pattern and 5 are convex patterns. More specifically, the building plate 1 is a zinc-iron plate,
A thin plate such as a color steel plate, a stainless steel plate, a copper plate, and an aluminum plate, for example, a plate body having a thickness of about 0.1 to 2 mm is used as a material, and has an arbitrary cross-sectional shape, for example, a flat plate or a second plate.
Formed as shown in FIGS. 4A to 4N, FIG.
As shown in (b), at least the decorative surface 3 has an arbitrary contour (pattern) and an uneven pattern having a multi-stage cross-section is arbitrarily arranged on the decorative surface 3 as shown in FIGS. 5 (a) and 5 (b). Covered with a decorative coating film 7. That is, the material is a thin plate made of only the metal itself, or, as shown in FIG.
Alternatively, a plurality of base coating films 2 (two layers in the figure) are formed by baking or air drying. Further, as shown in FIGS. 4 (a) and 4 (b), the uneven pattern of the multi-stage structure has a flat surface and a side wall 6, and the angles θ ₁ , θ in the cross section thereof.
₂ comprises a right angle, or an obtuse angle, or a combination thereof. In particular, concave and convex shapes can be any shape,
For example, the plan view is a pattern as shown in FIGS. 1 (a) and 1 (b). Also, uneven pattern is formed to have a plurality of stages, its sequence, area, depth d ₁ to d ₃ is formed at random. In addition, the depth d ₁ to d ₃ is about 0.2 to 1.5 mm, and the area is large.
100mm ^2-position, small is the ^2-position 1mm. Further, the decorative coating 7 is applied to the decorative surface 3 with a spray gun, a roll coater, a curtain flow coater or the like so that the concave and convex patterns 4 and 5 are not buried, and the convex angles 5a, 5b and 5c of each step are applied. And the reentrant angles 4a, 4b, 4c are formed to have different thicknesses from other portions. More specifically, the decorative coating 7 is formed to have a coating thickness as shown in FIGS. 5 (a) and 5 (b) in each of the concave and convex patterns 4 and 5. That is, FIGS. 5A and 5B are concave,
FIG. 4 is an end view showing one of the convex patterns 4 and 5 in an enlarged manner, and the decorative coating film 7 has a film thickness at each of the convex angles 5a, 5b, and 5c smaller than a flat portion, and Δt ₁ <Δt ₂ < As shown in Δt ₃ , the bulge of the periphery gradually forms an unclear coating thickness toward the bottom surface. Further, the decorative coating film 7 has a cross-sectional shape having a film thickness shown in FIGS. 6 (a) and 6 (c) at the center of the bottom surface and the top surface of a large area. This is determined by the viscosity of the paint, the surface tension, and the size of the concave and convex patterns 4 and 5. further,
If the area of the bottom surface of the concave pattern 4 is small, the decorative coating film 7 is coated on the entire bottom surface with a large thickness as shown in FIG.
When the convex pattern 5 is formed like a so-called curved surface having a small top surface area, the film thickness becomes small as shown in FIG. 7 (b). Further, the decorative coating film may be the same color, different color, or transparent paint (including color clear) as the base coating film 2. Further, a fluorine transparent paint is applied in the same manner.

〔The invention's effect〕

As described above, according to the architectural plate according to the present invention, the multi-level uneven pattern on the decorative surface and the thickness of the coating film associated therewith, and the uneven thickness, brightness, and color of the base coating film and the decorative coating film are synergistically obtained. There is a characteristic that it is used as a cosmetic surface full of three-dimensional feeling and natural feeling that is not simply a concave-convex shape. In addition, since a decorative coating film is formed on at least the decorative surface having an uneven pattern, cracks in the base coating film during embossing are protected, and there is a feature that corrosion does not occur even in a salt water spray test for 1500 hours. Furthermore, while the base of the periphery of the convex pattern is raised, the periphery of the concave pattern has a brightness close to the top surface or a brightness lower than that, and the height difference of the uneven pattern is further enhanced.

[Brief description of the drawings]

1 (a) and 1 (b) are plan views showing a part of a decorative surface of a building plate according to the present invention, and FIGS. 2 (a) to (n) are cross-sectional views showing examples of forming the building plate. , FIG. 3 is an explanatory view showing a part of a metal plate of a building plate in an enlarged manner, FIGS. 4 (a) and (b) are end views showing an example of an uneven pattern in an enlarged manner, and FIG. ),
(B), FIGS. 6 (a) to (c), FIGS. 7 (a) and (b)
FIG. 3 is an enlarged explanatory view showing the state of the film thickness of the decorative coating film. 1 ... architectural plate, 2 ... base coat, 3 ... decorative face, 4 ...
... concave pattern, 5 ... convex pattern, 7 ... decorative coating film.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04F 13/12 101 E04F 13/08 E04F 13/12

Claims (1)

(57) [Claims] 1. A metal plate having an embossed pattern formed by embossing, the embossed pattern is formed in a cross section having a plurality of steps with a difference in elevation, and a bent portion of a convex angle in each step is coated with a thinner film than a flat surface. A decorative paint film with a thickness that shows a contour from a thin paint film to a thick paint film from the top of the convex pattern to the bottom of the concave pattern as well as the concave angle of each step. An architectural plate characterized by covering an uneven pattern surface.