JPS6061206A - Manufacture of 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] [Technology field].

The present invention relates to a method for manufacturing a decorative veneer that is used as a board by pasting it on the surface of plywood or the like. [Background technology] When using a wooden veneer obtained by cutting a raw wood rainbow rotary or slicing as a board, Acid firing, in which a wood veneer is dipped in an acidic solution to give it a bright black color, does not develop color through treatment and is then treated with K11N white. However, in this case, if the wood grain is clear and there is a clear distinction between Japanese pine veneer and Japanese pine veneer, it will have a wood grain effect, but the original wood grain of the wood veneer will remain as it is. Because of the wood being used, the wood grain cannot be expressed as desired, and the acid tanning method described above cannot be applied to veneers with almost no wood grain, such as agathis. It is.

[Purpose of the invention]

The present invention has been made in view of the above points, and is a decorative veneer that can express a desired wood grain on a wood veneer with almost no grain by using acid burn treatment. The purpose is to provide a manufacturing method.

[Disclosure of the invention]

However, the uninvention is Wood Grain PM+, which is made by coloring the wood veneer (1) by acid tanning and providing protrusions (2) in the shape of the wood grain pattern.
31 is directly applied to this wood printing plate +11, and the bleaching process is performed under this circumstance.With this configuration, the above object has been achieved. Explain in detail.

As the wood veneer 11+, it is possible to use wood veneer 11+ obtained by 0-tallying or slicing wood with almost no grain, such as agathis.First, this wood veneer 11+ is immersed in a hostile solution etc. to prevent the wood from burning. Color the entire veneer (1). The way the wood burns and the color of the discoloration vary depending on the tree species, but the color is usually deep black. It is also possible to similarly develop a dark black color by immersing the wood veneer (1) in an alkaline solution. After the wood veneer (1) is colored with acid burn in this manner, it is washed with water and then immersed in a bleaching solution such as a purple peroxide solution to perform a bleaching treatment.

In this opening process, a protrusion [21'e, t-shaped wood grain shape (3)] with a desired wood grain shape is used as shown in FIG. That is, this wood grain pattern (3) is made to form a stone on the surface of the wooden veneer (1) by the making section (2), and a flat plate (4 ) with a cap stone or a similar wood grain-shaped protrusion (21
T? As shown in Fig. 12(b), the protrusion t2+ of the pair of wood grain patterns i31+31' is made by facing the provided wood grain patterns (3).
The wooden 4L board (1) is sandwiched between the +21 questions, and in this state, the wooden veneer board (1) is immersed in the bleaching solution. As a result, the bleaching solution does not act on the wood veneer fil in the areas where the protrusions (2) of the wood veneer il+ are scaled, but only on the areas where the protrusions (21) are not scaled. Therefore, in the gA portion where the bleaching solution acts, the coloring due to acid tanning becomes reddish white, but in the areas where the bleaching solution does not act, the coloring due to acid tanning appears in the protrusions (
2) As shown in Fig. 3, the remaining part due to coloring due to acid burn is exposed as summer wood part (5), and it is possible to obtain a decorative veneer A in which a wood grain pattern is expressed. become. At this time, the bleaching solution will penetrate a little at the boundary where the protrusion (2) is located, and the whitening will be subtle and the boundary between the summer wood (6) will be blurred, giving a natural look. san
It is something that The veneer obtained in this way is
Washed with water, dried, treated with WPC (Wood
It is used as a mounting board by being applied to a base board, such as plywood, which has been subjected to P/astic combination treatment and then coated with a veneer, by dry pressing.

In addition, when processing the original wood veneer (1), normally the wood veneer fil is immersed in a solution while being fitted, but the bleaching solution is applied evenly to the wood veneer + 1). There is a risk that it may not penetrate into the skin and cause uneven whitening. Therefore, in this case, as shown in FIG.
Compression plate t81 +81' at the tip of 71? and a large number of wooden veneers (XL, FLL,
...Set between all pairs of compression plates (8) (8), and in this state place a pair of histoshields 1υ (71cm) in a bleaching solution.
+71 t-At the same time, the pressure plate f8+ +81 is repeatedly compressed and released from the pressure on the wooden veneer +11111... by protruding from the plastic plate and retracting it into the plunge 1 a-iel +61. All you have to do is join in. In this way, the white liquor can be uniformly and neatly penetrated into the wood veneer. The apparatus shown in FIG. 4 can be used not only in the present invention, but also in any other process for whitening wood grains.

In addition, by applying WPC treatment to the decorative veneer (wooden veneer) and impregnating it with unsaturated polyester resin, the surface hardness is increased and the grain of the wood is increased, and after this treatment, the veneer is placed on the base plate. However, when the WPC-treated veneer is applied to a base plate by heating and pressurizing, the flow of the unsaturated polyester resin may not be sufficient and the surface may not be finished smoothly. Therefore, in this case, the veneer is first impregnated with a WPC resin such as an unsaturated polyester resin and dried at a high temperature, and then the WPC resin is applied to the surface of the veneer and dried at a low temperature. Then, heat press this thing onto the base plate using a contact agent to make it contact with the surface of the wp.
It has a good flow of cmqh and can finish the surface smoothly.

That is, first, after drying the veneer for a long time, the veneer is impregnated with a resin for WPC such as unsaturated polyester resin, and dried at a high temperature of about 120° C. for about 20 minutes. Then W
As the PC resin hardens, the resin flow deteriorates in the heat press used to attach the veneer to the base plate. Here, the structure of the veneer spring wood is similar to that of the wood, and the dense structure of the summer wood is also often impregnated with WPC resin, but as mentioned above, WPCe resin is impregnated.
By increasing the hardness of the fat, the spring wood with a large amount of WPC resin impregnated becomes transparent9. It is possible to make the difference in shading even brighter than that of good quality wood, and to improve the grain and gold of the wood. After the WPC tree is impregnated, WPC resin is applied to the surface of the veneer.

The applied WPCfiR, Nh was dried at 60°C.
Do this for about 20 minutes at a low source. Because drying is carried out at such a low source, the curing of the WPC resin does not progress significantly.
This WPC is used in the heat press when pasting the veneer to the base plate.
The flow of lrL is good, and WP along the surface of the press
[Effect of the Invention] As described above, according to the present invention, after the wood veneer is browned and colored, the wood grain pattern is formed. Since the whitening treatment is performed with the wood grain edge, which has protrusions in its shape, placed straight against the wood veneer, the wood veneer does not lose its bleaching in the areas where the protrusions are in contact, and does not suffer from acid burns. The color produced by cutting the wood into the wood grain shape makes it possible to express the wood grain in a wood veneer with almost no wood grain, and the shape of the wood grain can be set arbitrarily by the shape of the wood grain protrusion. This allows the desired shape of wood grain to be expressed on the wood veneer.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the wood grain stage used in the example of the present invention, Figures 2 (a) and (b) are sectional views of one step in the same process, and Figure 3 is a A perspective view of the board, and Figure 4 is a cross-sectional view of the device used for bleaching. (1) Tri wood base board, (2) is a protrusion, and (3) is a wood grain type. Agent Patent Attorney Stone 1) long seven

Claims (1)

[Claims] This method for producing a decorative veneer is characterized in that a wood veneer is colored by acid burn, a wood grain pattern with protrusions in a wood grain pattern is applied to the wood veneer, and original processing is performed in this state.