JPS5894462A - Decorative plywood - 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] Hi's invention relates to decorative plywood.

/l Resin-impregnated laminated decorative veneer, which has been resin-strengthened by impregnating it with a resin such as ester, is press-bonded to the plywood surface using an adhesive. It is customary to use a low specific gravity material such as agathis wood as the material.

Therefore, when the laminated decorative veneer is subjected to resin impregnation treatment, the amount of resin impregnated into the veneer increases, and the decorative plywood obtained by press-bonding this to plywood has a texture unique to natural wood. It has the disadvantage that it gives off a strong image of being pufustic and spoils the sense of commonality and naturalness.

In particular, with laminated decorative veneers, components in the laminated veneer are removed during pre-treatments such as bleaching during the manufacturing process, so the texture is impaired compared to Kamemoto and natural decorative veneers. However, the increase in pufstic image V due to the resin impregnation treatment further increases the deterioration of the natural appearance.

Therefore, an object of the present invention is to provide decorative plywood with a texture unique to natural wood.

An embodiment of the present invention is shown in FIG. are bonded to each other through an adhesive 3, and on this resin layer 1, a laminated decorative veneer 4' which has been further impregnated with resin is press-bonded.

The manufacturing process for this decorative plywood is as follows.

(Illusion) A resin-impregnated decorative laminated veneer 4' is obtained by injecting under reduced pressure a polyester resin solution for wood veneer impregnation treatment into the laminated decorative veneer 4 expressing a predetermined wood grain pattern (Fig. 2 (9), @ ).

(2) Separately, a vinyl urethane adhesive 3 is applied to the surface of the plywood 2, and a resin liquid containing polyester resin as the main ingredient and 1 to 10% of Pardalais is applied onto the adhesive-applied surface of the plywood 2. A resin layer is adhesively formed on the plywood 2 by coating ((0) in the same figure. In this case, the grain size of the pearl darice is preferably about 10 to 60 microns.

(3) The resin-impregnated decorative laminated veneer 4' is placed on the surface of the resin layer 10 of the base plate 2, and the side surface X@ is attached using a hot press, and then the surface of the resin-impregnated decorative laminated veneer 4' of! ! ! Finished with scissors to obtain decorative plywood 5 (in the same figure) (G) ＼In addition,
It is preferable to set the particle size of the pearl darice in such a manner because it is easier to horizontally align the particles in layers during press bonding when the particle size is relatively large.

The manufacturing process of the laminated decorative veneer 4 is schematically shown in FIG.

That is, wooden material veneers 6 made by rotary splicing of low specific gravity materials such as agathis wood are laminated with an adhesive, and are pressed and bonded using a predetermined pressure mold 7 to obtain a composite flitch 8 (
Figure 3 Prisoner, @). The laminated flitch 8 is sliced in a direction intersecting the laminated surface to obtain a laminated decorative veneer 4 in which the cut surfaces of the wood veneer 6 and the adhesive layer are alternately exposed in a wood grain pattern. (Same figure (Q, (to)). In the above steps.

In order to give the reproduced wood grain pattern a change in the spring wood part and the summer wood part, the wood material veneer 6 is dyed in the spring wood color,
Common methods include dyeing the adhesive in the color of summer wood, or creating a laminated flitch by alternately layering veneer dyed with spring wood color and resin vapor colored in summer wood color. , the following effects can be obtained.

α) The laminated decorative veneer 4' that has been impregnated with II fat has increased translucency, and the light-colored spring wood portion has high translucency), and is sandwiched between this laminated decorative veneer 4' and the plywood 20. The incident light from the laminated decorative veneer 4' is reflected by the mica scale-like powder (pearl darice) mixed in the resin layer 1 to be mounted, thereby imparting a deep luster to the surface of the material.

(As mentioned above, by applying the adhesive 3 and then applying the resin liquid mixed with the pearl dalece to form the resin layer 1, the resin layer 1 can be formed thinly, and the pearl dalece can be formed into a thin layer. By being well oriented in the horizontal direction, the above-mentioned reflection effect can be enhanced.Furthermore, since the oriented layer of Pardarite is multi-layered, the incident light is regularly reflected in each layer, resulting in a deeper luster. be able to.

In addition to the above-mentioned embodiments, it is also possible to add the Perarderase to the adhesive and orient the Perrderite within the adhesive layer, but this is not effective because it has the following drawbacks.

■ When Pearldaleite is added to the adhesive, the particle size increases significantly as shown in the table below, making processing such as spreader application difficult.

■ Because the particle size of the adhesive itself is originally high, the orientation of the pearl darice is not aligned in the horizontal direction even if it is press-bonded with a mixture of pearl darice.As mentioned above, the decorative plywood of this invention Since it is equipped with a resin layer mixed with mica flake-like powder adhered to the surface of the base plate and a resin-impregnated laminated decorative veneer adhered onto the resin layer mixed with mica flake-like powder, it has a depth unique to natural wood. It has the effect of being able to impart a certain luster to decorative plywood with a rich natural feel.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a main part showing an embodiment of the present invention, Fig. 2 (8) to @ are illustrations of the manufacturing process thereof, and Figs. 3 to 0 are illustrations of the manufacturing process of laminated decorative veneer. . DESCRIPTION OF SYMBOLS 1... Resin layer, 2... Base plate, 3... Adhesive, 4...
...Laminated decorative veneer, 4'-...Resin-impregnated laminated decorative veneer,
5... Decorative plywood

Claims (1)

[Claims] (1) A decorative plywood comprising a base plate, a resin layer mixed with mica flake powder adhering to the surface of the base plate, and a resin-impregnated laminated decorative veneer adhered onto the resin layer mixed with mica flake powder. (The particle size of the mica-flake powder is 10 & 6
0 micron, and the resin layer mixed with the mica flaky powder has a distribution ratio of the mica flaky powder of 1' and 10%. Decorative plywood.