JPS61193803A - Manufacture of artificial precious wood decorative veneer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field J] The present invention relates to a method for manufacturing a decorative artificial wood veneer that expresses a conduit and closely resembles natural wood.

[Background technology 1] Conventionally, in manufacturing this type of artificial precious wood decorative veneer, a large number of rotary and sliced veneers with a thickness of about 1 m are stacked and pressed together with a colored adhesive to create a flitch. Thereafter, this flitch is sliced diagonally to the loading direction to produce artificial precious wood decorative veneers.

However, the artificial precious wood decorative veneer obtained by this method uses a colored adhesive between the veneers to express the summer wood, but it cannot express the wood conduit. Therefore, it was unnatural and lacked a natural feel.

[Object of the Invention] The present invention has been made in view of the above points, and an object thereof is to provide a decorative artificial wood veneer that closely resembles natural precious wood by expressing the conduit of the tree. It is something to do.

[Disclosure of the Invention] That is, in the artificial precious wood decorative veneer of the present invention, a urethane resin 2 is applied to the surface of a veneer 1 and the urethane resin 2 is foamed, and then this veneer 1 is bonded to a large number of layers using an adhesive 5. The flitch 6 is produced by stacking and pressing sheets, and then the flitch 6 is sliced in a direction crossing the stacking direction, and the foam layer 7 of the urethane resin 2 is used to express a wooden conduit. The above objective has been achieved.

The present invention will now be described in detail. As the veneer 1, a rotary veneer or a sliced veneer can be used. Urethane 81N2 is applied over the entire surface of the veneer 1. The urethane resin 2 can be applied using a roll 8 or the like as shown in FIG. 1, and is applied uniformly to the surface of the veneer 1. Next, water 3 is sprinkled on the surface of this urethane resin 2. Then, the urethane resin 2 reacts with the water 3 and foams. Next, the surface of the foamed urethane resin layer 7 is pressed with a roll or press to make the surface flat. After that, the foamed layer-adhered veneer 4 coated with this urethane resin layer 7 is placed in a second layer.
As shown in the figure, a large number of flitches are stacked with colored adhesive 5 interposed therebetween, and then pressed in upper and lower molds to produce a curved flitch 6 as shown in Figure 3. The flitch 6 is sliced diagonally along the cutting line 1 to obtain an artificial precious wood decorative veneer A as shown in FIG.

By forming the foam layer 7 of the urethane resin 2 on the surface of the veneer 1, when this part is sliced, the closed foam layer 7 of the urethane resin will be MfXed into the wood conduit, as shown in FIG. An artificial precious wood decorative veneer A having a conduit portion 9 as shown in FIG. 1 is obtained. Moreover, since the colored adhesive 5 is applied on the uneven surface of the foam layer 7, the adhesive 5
can penetrate into the interior and improve the adhesion between the veneers 4. Furthermore, a summer wood portion is formed on the artificial precious wood decorative veneer 1 by the colored adhesive 5. In addition, in the above example, urethane resin 2
The foam layer 7 was formed by spraying water 3 on the urethane resin 2, but a volatile foaming agent such as a foaming agent or 7 Leon was mixed or dissolved in the urethane resin 2 and foamed on the surface of the veneer 1. Alternatively, the foam layer 7 may be formed.

Further, the urethane resin 2 may be colored in the same color as the colored adhesive 5 or in a different color.

The present invention will be specifically described below based on Examples.

x1■1 1. A urethane adhesive was applied to the surface of an Oml+ thick agathis veneer at a coating fi of 90 g/-2, and then water was uniformly sprinkled on the surface at a coating amount of 10 g/1112.

After the urethane adhesive and water react and form foam, the surface is compressed with a pressure of 10 kg/m'' to obtain a veneer with a foam layer attached.Next, this veneer with a foam layer attached is coated with a colored adhesive. A large number of flitches were made by stacking and pressing them together through a holder, and the flitches were then sliced to obtain decorative artificial wood veneers.

The artificial precious wood decorative veneer that was obtained expressed the conduits of the summer wood and closely resembled natural wood.

[Effects of the Invention] As described above, the present invention applies urethane resin to the surface of a veneer, foams the urethane resin, and then stacks and presses a large number of these veneers with an adhesive to create a flitch. Then, since the flitch was sliced diagonally, the urethane resin foam layer was cut and a cut surface similar to a wooden conduit was created on the surface of the artificial precious wood decorative veneer, making it look like natural wood. It is possible to increase the product value by creating a close resemblance.

[Brief explanation of drawings]

FIGS. 1(a), (b), and (c) are explanatory diagrams showing the manufacturing method of one embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main parts of the same, and FIG. 3 is a perspective view of the same flitch, and FIG. Figure 4 is a front view of the artificial precious wood decorative veneer obtained as above. 1 is a veneer, 2 is a urethane resin, 4 is a veneer with a foam layer attached, 5
is an adhesive, and 6 is a flitch.

Claims (1)

[Claims] (1) Apply urethane resin to the surface of the veneer and foam the urethane resin, then stack a large number of veneers with adhesive and press them together to create a flitch, and then make the flitch cross the stacking direction. A method for manufacturing artificial precious wood decorative veneer, which is characterized by slicing in the direction of slicing.