JPH08174784A - Wood decorative panel - Google Patents

Abstract

PURPOSE: To provide a thin wood decorative panel capable of being punched out, and also being formed readily without the use of expensive molds, etc., moreover, having a sufficient strength. CONSTITUTION: A decorative material 3 with a thickness of 0.5mm is laminated on one surface of a metal sheet 2 with a thickness of 0.1-0.4mm, and a liner material 4 with a thickness of 0.15-0.5mm is laminated on the other surface thereof, then they are integrated by an adhesive.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a wood decorative panel used for producing a molded product having a grain pattern.

[0002]

2. Description of the Related Art Conventionally, in order to increase the commercial value of automobile interior parts, furniture, electric equipment, etc. by giving them a high-grade feeling and warmth, and increasing their commercial value, wooden decorative boards having a wood grain pattern on their surface have been used. Processing such as pasting is done. Then, as such a wooden decorative board, a plywood panel formed by laminating a plurality of single plates, after placing the decorative material in the mold,
Examples include an injection molded panel formed by injecting a resin into a mold, an aluminum die cast panel in which a surface of an aluminum base material obtained by aluminum die casting is adhesively coated with a cosmetic material.

However, in order to obtain a molded product using the above-mentioned plywood panel, first, a number of single plates to be laminated are laminated with an adhesive layer interposed between them, and these are arranged in a mold. It is necessary to heat-press and mold, and a mold is required, and it takes time and effort to set the temperature and pressure inside the mold. Further, if an injection molding panel is to be produced, an injection molding die is required. If an aluminum die cast panel is to be produced, an aluminum die casting die is required. Since the molds are all expensive, the cost of the molding mold was relatively high compared to the wooden mold.

Further, the thickness of these panels is usually 2
mm or more, and to cut this into a predetermined shape,
Since punching with a Thomson punching machine is difficult,
It is necessary to use a woodworking machine for sharpening and shaving, but it takes time to cut into a complicated shape using the woodworking machine, and of course, skilled techniques are required.

Further, when a molded product obtained by using the above-mentioned panels is used as an interior panel around a car stereo of an automobile, etc., when this product is actually retrofitted, a push panel such as a car stereo is pushed because the panel is thick. There is a problem that the switch is buried by the thickness of the panel, the height of the portion where the push button switch projects from the panel becomes low, and it becomes difficult to operate the switch during traveling.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of these circumstances, and is capable of punching.
Molding can be done easily without using expensive molds,
Moreover, it is an object of the present invention to provide a thin wood decorative panel having sufficient strength.

[0007]

The object is to achieve a thickness of 0.
A metal plate having a thickness of 1 to 0.4 mm and a thickness of 0.15 to 0.5 mm that is laminated on one surface of the metal plate and integrated with an adhesive.
And a backing material having a thickness of 0.15 to 0.5 mm, which is laminated on the other surface of the metal plate and integrated with an adhesive agent.

[0008]

Since the wood decorative panel of the present invention has the above-mentioned constitution, a beautiful pattern can be imparted to the surface of a molded article produced by using the decorative material,
The metal plate improves the shape-following property during the molding process, and when the surface of the decorative material is coated with the backing material, the warpage caused by the drying of the coating is prevented. The decorative material has a thickness of 0.15 to 0.5 mm, and the metal plate has a thickness of 0.1 to 0.5 mm.
Since the thickness of the backing material is 0.4 mm and the thickness of the backing material is 0.15 to 0.5 mm, the thickness of the entire wood decorative panel is 0.4 to 1.4 mm.
The degree and very thin. This is a thickness that allows punching with a Thomson blade, and if the thickness is such a degree, molding can be performed easily.

[0009]

EXAMPLE An example of the wood decorative panel of the present invention will be described in detail below. Such an example shows one embodiment of the present invention and does not limit the present invention. It can be arbitrarily changed within the scope of the present invention. As shown in FIG. 1, in this wood decorative panel 1, a decorative material 3 is laminated on one surface of a metal plate 2 via an adhesive layer 6 made of an adhesive, and a backing material 4 is laminated on the other surface via an adhesive layer 6. Are laminated, and these are integrated.

As the decorative material 3, a known veneer such as a decorative veneer, a resin plate, a printed resin film, a decorative paper, a cloth, or the like having a wood grain pattern is particularly used.
Above all, from the viewpoint of beautiful appearance, luxury, strength, etc.
It is preferably a decorative veneer. The tree species used as a decorative veneer is not particularly limited, but normally oak, cypress, teak, walnut, bird's eye maple, elm, spruce and the like are used. Furthermore, the decorative material 3 may be reinforced with a non-woven fabric and the like.

The thickness of the decorative material 3 is 0.15 to 0.15.
It is preferably 0.5 mm, particularly 0.2 to 0.25 mm. This is because if it is less than 0.15 mm, a problem in strength occurs, and if it exceeds 0.5 mm, it becomes too thick, and it becomes difficult to reduce the thickness of the entire wood decorative panel 1.

The metal plate 2 is made of a metal such as aluminum, copper or iron, and is used to reinforce the decorative material 3 and improve its shape-following property. And it is particularly preferable to use aluminum which is lightweight and has excellent stretchability.
The metal plate 2 has a thickness of 0.1 to 0.4 mm, and more preferably, 0.1.
It is preferably 2 to 0.3 mm. This is 0.1
If it is less than mm, the effect of reinforcing the decorative material 3 does not appear,
On the other hand, when it exceeds 0.4 mm, the specific gravity of the wood decorative panel 1 produced by using the same becomes too large and the rigidity becomes too high, resulting in a decrease in the shape following property and a punching workability with a Thomson blade. Because it is inferior. Further, the metal plate 2 may be subjected to a chemical conversion film treatment in order to improve the corrosion resistance and the adhesiveness.

The backing material 4 is used to prevent warpage of the decorative material 3 after coating, and a wood veneer, particularly a wood veneer reinforced with a non-woven cloth as a backing, is preferably used. The tree species used as the wood veneer is not particularly limited and may be the same as or different from the veneer used as the decorative material 3. The backing material 4 is not limited to a wood veneer, but may be a fibrous material such as a foaming resin plate, paper, or a glass fiber mat.

The backing 4 has a thickness of 0.15 to 0.5,
In particular, it is preferably 0.2 to 0.25 mm. This is because if it is less than 0.15 mm, it does not contribute to warp prevention because it is too thin, and if it exceeds 0.5 mm, it becomes too thick and it is difficult to reduce the thickness of the entire wood decorative panel 1.

The decorative material 3, the metal plate 2, and the backing material 4 are integrated with an adhesive to form the wood decorative panel 1, but the adhesive used here is not particularly limited. Further, when thermocompression bonding is performed, it is preferable to use a thermosetting resin, and specific examples thereof include urethane-based resins and phenol-based resins.

The amount of the adhesive applied may be arbitrary depending on the type of the adhesive, the metal plate 2, the decorative material 3, the backing material 4, etc., but is usually 20 to 120 g / m ² , preferably 40 to 80 g.
It is g / m ² . If it is less than 20 g / m ² , the coating amount is too small and the adhesive strength is poor, and if it exceeds 120 g / m ² , the adhesive layer 6 becomes too thick and the dimensional stability and the rigidity of the panel itself become high. This is because there is a fear that it will be too much, and the amount of the adhesive that exudes to the surface of the decorative material 3 increases. And, the condition when the thermocompression bonding is performed is that the temperature is 100 to 1
The pressure is 50 ° C. and the pressure is ² to 20 kg / cm ² , but it is not limited to these ranges.

Next, a first example of a process for obtaining a molded product having a desired shape from the wood decorative panel 1 will be described. First, as shown in FIG. 2, a Thomson punching machine or the like is used to perform punching into a predetermined shape. Then, a desired product 5 can be obtained by press-molding the product punched into a predetermined shape with a wooden mold or the like. And the molded product 5
A beautiful appearance can be achieved by applying a coating of urethane resin or polyester on the surface of. Of course, the surface of the molded product 5 may be polished if necessary. Further, among the molded products 5, those which require post-processing for attaching the molded product 5 to a predetermined base material, such as an option panel for vehicle interior, are double-sided tape or adhesive on the back surface of the molded product 5. After applying the agent, post processing is performed.

As a second example of the molding process, the wood decorative panel 1 is first coated with soft urethane resin, epoxy resin, polyester or the like, punched into a predetermined shape with a Thomson punching machine, and then pressed. It is also possible to perform molding to obtain a molded product 5 having a desired shape. The process for obtaining the molded product 5 is not limited to the above-described method, and may be, for example, a process sequence in which a double-sided tape, an adhesive or the like is attached or applied and then punching is performed.

Such a wood decorative panel 1 has a thickness of 0.
A metal plate 2 having a thickness of 1 to 0.4 mm and a thickness of 0.15 to 0.5 laminated on one surface of the metal plate 2 and integrated with an adhesive.
mm decorative material 3 and a backing material 4 having a thickness of 0.15 to 0.5 mm, which is laminated on the other surface of the metal plate 2 and integrated with an adhesive. 1 The overall thickness is very thin, about 0.4-1.4 mm, and it can be punched and can be easily molded without hot-pressing, reducing the molding cost and the molding process. To be simplified. Further, the shape following property is excellent, and a quadric surface or a simple cubic surface can be easily molded with a wooden mold or the like without using an expensive mold. Further, since this wood decorative panel 1 has the above-mentioned structure and is extremely thin, it is more flexible than the conventional wood decorative board and the shape can be modified after molding and painting.

(Examples) The effects of the present invention will be clarified by showing concrete examples below. A 0.2 mm thick Claro walnut veneer is used as the decorative material 3 on one surface of the 0.3 mm thick aluminum plate, and 0.2 mm as the backing material 4 on the other surface.
The birch veneers of No. 1 were joined using an adhesive to obtain a wood decorative panel 1 having a three-layer structure. As the adhesive, a phenol adhesive is used, the coating amount is 60 g / m ² , and the temperature is 140 ± 5.
Adhesion was carried out by pressing at 8 ° C. and a pressure of 12 kg / cm ² for 8 minutes. This wood decorative panel 1 was punched into a rectangular shape having two notches by a Thomson punching machine, and this was press-molded with a kamaboko-shaped wooden mold, and then released to form a gutter-shaped molded product 5. Obtained. The molded product 5 had no cracks or cracks. Further, the molded product 5 was painted by coloring, undercoating, intermediate coating and topcoating. In addition, this molded product 5
In a humidity tester at a temperature of 50 ° C and a humidity of 95% for 20
When it was held for 0 hour and then held at 80 ° C. for 400 hours as a heat resistance test, it showed excellent durability.

[0021]

As described above, the wood decorative panel of the present invention is laminated on a metal plate having a thickness of 0.1 to 0.4 mm on one surface of the metal plate and integrated with an adhesive. A decorative material having a thickness of 0.15 to 0.5 mm and a thickness of 0.15 to 0.
Since it is composed of a backing material 4 of 5 mm, the thickness of the whole wood decorative panel is about 0.4 to 1.4 mm, and it can be punched without needing to be hot pressed. Molding cost is reduced because it can be easily molded,
The molding process is simplified. Further excellent shape following property
A curved surface such as a cubic curve or a simple cubic curve can be easily molded with a wooden mold without using an expensive mold. Further, since this wood decorative panel has the above-mentioned structure and is very thin, it is more flexible than the conventional wood decorative board, and the effect that the shape can be modified after molding and painting can be obtained. .

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a wood decorative panel of the present invention.

FIG. 2 is a process drawing for obtaining a molded product from the wood decorative panel of the present invention.

[Explanation of symbols]

1 ... Wood decorative panel, 2 ... Decorative material, 3 ... Metal plate, 4 ... Backing material, 5 ... Molded product, 6 ... Adhesive layer

Claims (1)

[Claims] 1. A metal plate having a thickness of 0.1 to 0.4 mm, and a decorative material having a thickness of 0.15 to 0.5 mm laminated on one surface of the metal plate and integrated with an adhesive. A thickness of 0.15 that is laminated on the other surface of the metal plate and integrated with an adhesive.
A wood decorative panel characterized by comprising a 0.5 mm backing material.