JPH0754444Y2 - High weather resistance metal decorative plate - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a highly weather-resistant metal decorative plate useful as a building material such as a roof material or an outer wall material in which a random convex pattern is formed on at least the decorative surface of the metal plate. is there.

[Conventional technology]

Generally, embossing and lysine coating are known to give a three-dimensional appearance to the decorative surface of a metal plate.

[Problems to be solved by the device]

However, embossing has a disadvantage in that the three-dimensional effect is limited due to the cracking and depth of the coating film, and a large pattern cannot be formed by lysine coating, resulting in lack of the three-dimensional effect.

[Means for Solving the Problems]

In order to eliminate such a defect, the present invention integrally attaches a fluorine resin film of an arbitrary pattern to the decorative surface of the metal plate with an adhesive and a pattern according to the purpose, and coats this decorative surface with a fluorine resin coating film. We propose a highly weather-resistant metal decorative plate that is coated, has a rich three-dimensional effect, and can be freely selected in color, and has significantly enhanced weather resistance, stain resistance, and mold resistance.

〔Example〕

Hereinafter, an embodiment of a highly weather-resistant metal decorative plate (hereinafter simply referred to as a decorative plate) according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing a part of the cross section of the decorative plate. Reference numeral 1 is a decorative plate, and a convex pattern made of a fluorine resin film 4 is provided on the surface of a base material 2 with an adhesive 3 and fixed. The entire decorative surface 5 including the convex pattern is covered with a fluorine resin coating film 6 made of fluorine coating. To further explain, the base material 2 is made of one kind of a stainless plate, an aluminum plate, a zinc iron plate, a color steel plate, a flat plate such as a titanium plate, and an embossed plate, and the color steel plate is preferable in terms of cost and weather resistance. This is desirable. For example, the cross section thereof has the configuration shown in FIG. That is, the base material 2 is made of iron, zinc plating, chemically treated coating C, undercoat layer D, and topcoat layer E as core materials. At that time, the overcoat layer (e) is a coating film having good compatibility and adhesiveness with the adhesive 3. The adhesive 3 is made of an epoxy resin, a polyurethane resin, a fluorine resin, or another composition having a good adhesive property with the fluorine resin, and the fluorine resin film 4 is adhered to the decorative surface 5. Further, the fluorine resin film 4 may have any color, size, thickness, and printing, and the decorative surface 5 may have a mosaic tone, a stucco tone, or the like.
Arrange arbitrarily and fix. In addition, it is preferable that the back surface of the fluororesin film 4 is an uneven surface that easily adheres to the adhesive 3 or a skin surface where the cilia-like material is exposed. Further, the thickness of the fluorine resin film 4 is about 20 to 1000 microns. The fluorine resin coating film 6 is, for example, an acrylic resin, an acrylic lacquer, an acrylic urethane, or a polyester resin and an ethylene oxide adduct of bisphenol A, a true polymer polyester resin, a polyolefin, an epoxy resin, a fluoroolefin-vinyl-based monomer copolymer. Combined and acrylic (meth) acrylate 85
% Or more of 20% to 60% by weight of an acrylic resin, a coating film containing a pigment and a curing agent, and the like, and has a thickness of about 10 to 100 microns (wet).
The fluorocarbon resin is abbreviated as PTFE, FEP, PFA,
EPE, PCTFE, PVDF, ETFE, PVF, etc. about 10-50 of vehicle
% Content is included. If you show a concrete example,
Fluoroolefin-vinyl monomer copolymer 80-40
20 to 60 parts by weight of an acrylic resin containing 85 parts by weight or more of an alkyl (meth) acrylate having 2 to 5 carbon atoms and a molecular weight of 15,000 to 40,000, a pigment, and a curing agent, and an acrylic-modified coating. It is a coating composition containing a vinylidene chloride resin as a main component and an ultraviolet absorber added thereto, and the viscosity at the time of application is about 30 to 500 CPS.

The manufacturing method will be briefly described below. A colored steel sheet coated with a polyester resin is used as the base material 2, a fluorine resin film 4 has a thickness of 0.2 mm, and the color is an arbitrarily colored square with an area of 5 to 300 cm ² . Various patterns such as circles, ellipses, and half moons are used. At this time, both the front and back surfaces of the film were skin surfaces roughened in a ciliary shape by electric discharge machining. The adhesive 3 is an epoxy resin, and the paint of the fluorine resin coating film 6 has the composition described above. Therefore, in order to manufacture the sandwich panel 9 as shown in FIG.
A fluororesin film 4 having an adhesive 3 adhered thereto is randomly attached, and then the above-mentioned paint is applied to all the decorative surfaces 5, dried and baked to form a decorative surface 5 shown in FIG. The board 1 was manufactured, and then the decorative board 1 was filled with the core material 7 and the back surface material 8 was integrally adhered thereon to manufacture the sandwich panel 9 as shown in the figure.

The above description is only one example of the decorative plate according to the present invention, and the fluorine resin coating film 6 can be applied as shown in FIGS. 4 (a) and 4 (b). Further, the sandwich panel 9 using the decorative plate 1 may have the structure shown in FIGS. 5 (a) to 6 (g).

[Effect of device]

As described above, according to the decorative board of the present invention, it is possible to form the fluorine resin coating film on the decorative surface to which the fluorine resin film having an arbitrary pattern is attached without peeling off. The appearance is rich in three-dimensional appearance. Even if the unevenness is large, the adhesion of dust and the generation of mold will cause stain resistance, weather resistance, corrosion resistance of the fluorine resin coating film,
It can be greatly reduced by the gloss. The decorative surface can be formed on the surface of any pattern and any color. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an enlarged part of a highly weather resistant metal decorative plate according to the present invention, and FIG. 2 is an explanatory view showing the above-mentioned plate body by further extracting and expanding it, FIG. 3, FIG. 4 ( a), (b), FIGS. 5 (a) to (m), and FIGS. 6 (a) to (g) are explanatory views showing other embodiments. 1 …… High weather resistant metal decorative plate, 2 …… Base material, 4 …… Fluoro resin film, 6 …… Fluoro resin coating film.

Claims (1)

[Scope of utility model registration request] 1. A fluorinated resin film formed in an arbitrary pattern is attached to the decorative surface of a metal plate with an adhesive, and the entire decorative surface including the film is covered with a fluorinated resin coating film to be integrally formed. High weather resistance metal decorative plate.