JP2009090562A - Composite board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite board having a core material with color corresponding to color of a metallic thin film on a surface. <P>SOLUTION: The surface of a sheet metal 1 has a colored layer 4 having chromatic color. The synthetic resin core material 2 having the same color as the surface is laminated on a back face of the sheet metal 1. A back face plate 3 is laminated on a back face of the core material 2. Thereby, if a composite board P is cut in an arbitrary position, an end face 21 in a cut cross section of the core material 2 has the same color as the colored layer 4 of the sheet metal 1 so that uniformity of the composite board P is improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a composite plate comprising a thin metal plate having a colored surface, a core material made of synthetic resin, and a back plate.

  In general, in a panel used for an outer wall, a signboard, or the like, a metal plate having a color, a pattern, a pattern, or the like applied to the surface by painting or sticking a film is used. This metal plate is generally a steel plate, a galvanized steel plate, a metal plate made of an aluminum alloy or the like, or a composite plate made by attaching a synthetic resin core to a metal foil made of stainless steel, an aluminum alloy or the like Is used. The latter composite plate is relatively inexpensive and lightweight compared to the case of using a single metal plate, and is excellent in workability such as cutting.

  In the composite plate as described above, the core color used is mostly achromatic such as white, gray, black, etc., so when the composite plate is used for an outer wall or a signboard, the end face of the composite plate is exposed. When installed in a state, the coloring of the surface of the composite plate and the color of the core material do not match, there is no sense of unity, and the aesthetics may be impaired.

  Therefore, various methods have been proposed to conceal or decorate the end face of the composite plate. For example, in a decorative surface layer material that covers a wood-based panel base material, the decorative surface layer material includes a surface layer material on which a printed pattern or color is applied, and a backing material for the panel base material. There has been proposed a decorative layer surface material in which the decorative surface layer material is bonded in accordance with the width (see, for example, Patent Document 1).

  Also, a composite decorative face material in which a metal plate is laminated on at least one side of a base material, and when the metal plate is laminated on the base material, the end of the metal plate is bent toward the base material side, and at least the end face of the base material is There has been proposed a composite decorative face material designed to cover halfway (for example, Patent Document 2).

  The decorative layer surface material described in Patent Document 1 is suitably used as a decorative material on the wooden base of the panel base material, and cosmetically coats the wooden front surface where the inner layer structure of the panel base is directly exposed. In addition, the composite decorative face material described in Patent Document 2 is such that if the end of the metal plate bent toward the base is positioned, the wood base is exposed by the end of the surface material. There is no problem in the finish.

JP-A-11-70618 JP-A-9-76407

  However, the composite decorative face material has the following problems. That is, adjusting the width of the composite decorative face material in accordance with the width of the facet of the panel base material is troublesome, and there is a problem in that it becomes difficult to stick as the width of the facet becomes narrower. . The decorative layer surface material has the following problems. That is, it is necessary to process the metal plate each time according to the required size of the wooden base material, and when the metal plate is laminated on the wooden base material and bent to the base material side, This requires a special processing and is a cumbersome work, and this is a problem.

  The present invention is intended to solve the above problems and provide a composite plate in which the color of the core material is colored in accordance with the color of the metal thin film on the surface.

In order to achieve the above object, the present invention is configured as follows.
That is, in the composite plate according to the present invention, the surface of the metal thin plate is colored in a chromatic color, and a synthetic resin core material colored in the same color as the surface is attached to the back surface of the metal thin plate, and the core A back plate is attached to the back surface of the material.

  According to the present invention, the surface of the metal thin plate is colored in a chromatic color, and the synthetic resin core material colored in the same color as the surface is attached to the back surface of the metal thin plate. Even when processed to a size of 1, it is possible to match the color of the surface with the color of the end face of the core material that appears on the facet of the composite plate, and the sense of unity as a composite plate can be enhanced.

  Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  1 is a perspective view showing an embodiment of a composite plate according to the present invention, FIG. 2 is an enlarged partial cross-sectional view taken along the line AA of FIG. 1, and FIG. 3 is another embodiment of the composite plate according to the present invention. It is a front view which shows a form.

  In the drawings, 1 is a thin metal plate, 2 is a core material attached to the back surface of the thin metal plate 1, 3 is a back plate attached to the back surface of the core material 2, and the composite plate P according to this embodiment is a metal plate. It is mainly composed of the thin plate 1, the core material 2, and the back plate 3.

  First, FIG. 1 is a perspective view showing an embodiment of a composite plate P according to the present invention, and FIG. 2 is a sectional view of FIG. The metal thin plate 1 is a thin plate made of aluminum or an aluminum alloy, and a colored layer 4 colored in a chromatic color by coating is provided on the surface of the metal thin plate 1. In this embodiment, the thickness of the metal thin plate 1 is 0.2 mm.

  Next, the core material 2 is made of a thermoplastic synthetic resin, and is attached to the back surface of the metal thin plate 1 and colored in the same color as the colored layer 4 of the metal thin plate 1. In this embodiment, the core material 2 consists of polyethylene resin, and thickness is 0.36 mm. Similarly to the metal thin plate 1, the back plate 3 is a thin plate made of aluminum or an aluminum alloy, and is attached to the back surface of the core member 2. In the present embodiment, the thickness of the back plate 3 is 0.2 mm, that is, the thickness of the composite plate P is about 4 mm.

  Next, the colored layer 4 of the metal thin plate 1 will be described in more detail. As shown in FIG. 1, a display 5 is provided on the colored layer 4 while leaving a part of the surface of the colored layer 4 colored chromatic. In the present embodiment, a seal-like display 5 cut out in accordance with the display state is stuck on the colored layer 4, and the peripheral portion of the surface of the colored layer 4 is not subjected to the display 5 and is colored. The coloring residue 4a on the surface of the layer 4 is left. Thereby, since the same color part is continuously formed by the coloring remaining portion 4a and the end surface 21 of the core member 2 that appears on the end surface of the composite plate P, the sense of unity of the composite plate P can be enhanced.

  With this configuration, even when the composite plate P is cut to an arbitrary size, the color of the core material 2 that appears on the cut end surface is the same color as the colored portion 4, so that, for example, the surface of the composite plate is colored. Compared to the case where a color film is attached and the end portion of the film is bent toward the end surface of the composite plate to conceal the end surface, the composite plate P according to the present invention does not conceal the end portion. The color of the end and the color of the surface of the composite plate P can be matched. In the case of the film, the bent portion may be bent, but the composite plate P according to the present invention does not have such a fear, and the processing of the composite plate P becomes easy.

  Further, when the composite plate P is attached to a vertical surface such as a signboard, as shown in FIG. 3, if a plurality of composite plates P are adjacent in the vertical direction or the left-right direction, a step (not shown) is formed at the adjacent portion 6. Sometimes formed. When sticking a color film to the surface of a composite plate, the stepped portion may cause wrinkles on the film, generate floating parts that are not bonded to the composite plate, or unnecessarily concentrate stress on the film. There is a possibility that a defect in appearance may occur due to occurrence of defects such as tearing, but the composite plate P according to the present invention is a core material on the end surface of any one of the composite plates P appearing in the stepped portion. Since the color of the end face of 2 is the same color as the colored layer 4, it is preferable that the appearance does not feel strange even if a special work such as the work of adjusting the unevenness of the composite plate P is not performed. Also in this embodiment, the display 5 similar to that of the embodiment shown in FIG. 1 may be given.

  As the metal thin plate 1, a metal plate such as an aluminum plate, an aluminum alloy plate, a stainless steel plate, a body plate, a steel plate, an iron plate, or a galvanized steel plate is generally used, but the aluminum is relatively light and has excellent rust prevention properties. An alloy is preferably used. The thickness is generally about 0.05 to 1 mm, and can be appropriately selected depending on the strength, rigidity, thickness and the like required for the composite plate P.

  The colored layer 4 applied to the surface of the metal thin plate 1 is generally colored in a chromatic color on the surface side of the long metal thin plate 1 by a roll coater or the like. In addition, undercoating may be performed on the surface side of the metal thin plate 1 in advance, and the colored layer 4 may be coated on the undercoating layer to improve the adhesion between the metal thin plate 1 and the colored layer 4. Further, an undercoat layer may be applied to the back surface of the metal thin plate 1 to which the core material 2 is adhered, and the adhesion between the metal thin plate 1 and the core material 2 may be enhanced by sandwiching the undercoat layer. These undercoats can be appropriately selected according to the adherend.

  The back plate 3 is generally made of a metal plate such as an aluminum plate, an aluminum alloy plate, a stainless steel plate, a body plate, a steel plate, an iron plate, a galvanized steel plate, and the thickness thereof is generally the same as that of the metal thin plate 1. Is about 0.05 to 1 mm, and can be appropriately selected depending on the strength, rigidity, thickness and the like required for the composite plate P.

  The core material 2 is generally an α-olefin resin such as polyethylene, polypropylene, or polybutene, a copolymer obtained by copolymerizing an α-olefin with vinyl acetate, acrylic acid, an acrylate ester, or the like, or a composition in which these resins are appropriately blended. Resin is used. Further, the core material 2 may be composed of a single layer, or may be composed of a plurality of layers in which an adhesive resin layer is provided on the front surface and the back surface. Note that the same color as that of the colored layer 4 may not be the same as the optical color generally defined by the brightness and the saturation. That is, in general, the hues expressed in red, yellow, green, blue, purple, and the like need only be the same, and when the color of the colored layer 4 and the color of the core material 2 are viewed, there is no sense of incongruity. Any degree is acceptable. The thickness of the core material 2 is generally about 1 to 10 mm, and can be appropriately selected depending on the strength, rigidity, thickness, etc. required for the composite plate P. Furthermore, the manufacturing method of the core material 2 is generally a sheet in which an appropriate amount of a synthetic resin containing a pigment is blended with the synthetic resin serving as a base in accordance with the color of the colored layer 4 using an extruder. Extruded into a shape.

  When applying the display 5 to the colored layer 4, generally, a method of sticking a seal cut out according to the display state, a method of sticking a transparent film on which the display 5 is given by gravure printing, A method such as painting can be selected as appropriate. In addition, when sticking a method and a seal | sticker, or painting, you may make it difficult to peel from the edge part of the display 5 by sticking the transparent film which covers the display 5 from the top of the display 5. FIG. At this time, on the surface of the composite plate P, the core material 2 that appears at the end of the composite plate P is that the color remaining portion 4a that is the color of the colored layer 4 remains on the peripheral portion of the surface of the colored layer 4 as an appearance. The unity of the composite plate P can be enhanced in combination with the color of the end face.

  In general, the composite plate P is manufactured by using an extrusion molding machine to extrude the core material 2 in which the hot-melt adhesive resin layers are formed on both the front and back sides into a sheet shape and between the heated rolls. The core material 2 is disposed on the back surface of the thin metal plate 1, and the back plate 3 is disposed on the back surface of the core material 2, and these are continuously pressed to form a long composite plate P. The material is appropriately cut according to the size. This manufacturing method is preferable in consideration of the point that continuous production is possible and the point that the thickness of the composite plate P can be easily adjusted. For example, the metal thin plate 1, the core material 2, and the back plate 3 are previously cut to a predetermined size. Then, they may be bonded together to form a composite plate.

  Since the composite plate according to the present invention is obtained by coloring the color of the core material in accordance with the color of the metal thin film on the surface, it is not only a generally used rectangular signboard, but also a polygonal shape such as a triangle or a pentagon Also, a plurality of composite boards arranged in a grid in the left-right direction, top-bottom direction, etc., with unusual shapes such as corners cut out, circular signs, elliptical signs, or ceiling boards, flat boards, etc. In this case, even when the end face of the composite plate appears due to unevenness or the like in an adjacent location of the composite plate, the appearance of unity is generated, so that the composite plate can be preferably used.

It is a perspective view which shows one Embodiment of the composite board which concerns on this invention. It is an expanded partial sectional view in the AA cross section of FIG. It is a perspective view which shows the other form of implementation of the composite board which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal thin plate 2 Core material 3 Back surface plate 4 Colored layer 4a Colored remainder 5 Display P Composite plate

Claims (1)

  The surface of the metal thin plate is colored in chromatic color, and a synthetic resin core material colored in the same color as the surface is attached to the back surface of the metal thin plate, and a back plate is provided on the back surface of the core material. A composite board that is affixed.

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