JPS606762B2 - Decorative materials and their manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative material having a clear and three-dimensional wood grain pattern and a method for producing the same.

After applying a coloring agent of any color such as paint to the surface of the hardwood board and wiping off the coloring agent on the smooth surface of the thin board, the coloring agent can be attached only to the inside of the conduit grooves, but Since the proportion of solids is small, the filling effect in the conduit groove is small, and the coating film tends to fade, and during use, the coloring agent becomes cloudy due to dirt on the surface of the thin plate, and the lacquer on the surface of the thin plate becomes cloudy. Peeling of the colorant may occur. In order to solve this problem, it is possible to apply a transparent paint to the surface of the thin plate, but the coloring agent adhering to the inside of the conduit groove will be completely covered and a sufficient coloring effect will not be obtained. The wood grain pattern appears two-dimensionally, resulting in a poor three-dimensional effect.Furthermore, in a humid environment, the thin plate absorbs moisture and expands, causing cracks in the coating film, resulting in a significant deterioration in cosmetic properties. on the other hand,
A known method is to impregnate the inside of a single slope with soot beam dye, and then inject and harden a synthetic resin such as phenolic resin mixed with a beam agent, thereby coloring the wood and reinforcing the resin at the same time. According to the paper, it is difficult to make the wood grain appear three-dimensional because the inside of the single slope is colored in a dark color.

The present invention has been made in view of these points, and involves coloring the conduit grooves on the surface of the thin hardwood plate by attaching a pigment to the conduit grooves opened on the surface of the thin hardwood plate, and applying the pigment to the inside of the thin hardwood plate by addition polymerization. By injecting and curing the synthetic resin liquid, it is firmly fixed in the conduit groove, and the transparency of the entire thin hardwood board is increased, so that the wood grain pattern on the surface of the thin board colored with the coloring pigment appears clearly and three-dimensionally. together,
The present invention provides a decorative material with excellent strength, weather resistance, cosmetic properties, etc., which has significantly improved physical properties of thin hardwood sheets.

An embodiment of the present invention will be described with reference to the drawings. I is a thin board of hardwood such as Japanese zelkova, elm, teak, walnut, or other hardwood, and 2 is a conduit groove closed on the surface of the thin wood board 1.

First, a coloring agent containing a coloring pigment is applied to the surface of the thin wood board 1 using a roll coater, reverse coater, or other appropriate coating device, and then the excess colorant on the surface of the thin board is removed using a wiping roll or the like. Coloring pigment 3 is allowed to accumulate and adhere inside 2.

At this time, ``The coloring agent used is ``specifically, a liquid or paste consisting of a mixture of color pigments, dispersants, stabilizers, and one or more types of synthetic resins, solvents, etc.''
After drying this coloring agent, a synthetic resin liquid is injected into the resin, and the coloring pigment used is one that does not dissolve into the injected synthetic resin liquid.

Coloring pigments used as colorants include, for example, inorganic pigments such as pengara, chromium oxide, carbon black, cobalt flue, metal powder, etc., or azo pigments, quinacridone pigments,
There are organic pigments such as atin pigments, and the color of this colorant will be the color of the conduit grooves in the resulting product, so it should be selected and used in consideration of the intended use and cosmetic properties of the product.

In addition, ``crab phosphor may be used as a pigment,'' and ``can be used as necessary, such as by mixing the two.''

Next, the colored pigment 3 adhering to the inside of the conduit groove 2 of the thin wood sheet is dried.

As a result of this drying, only the solid content of the colored pigment 3 in the conduit groove 2 remains attached to the inside of the conduit groove 2, and as shown in Fig. appears on the surface of

When the coloring process in the conduit grooves 2 constituting the wood grain of the thin wood board 1 is completed in this way, the synthetic resin liquid 5 is injected into the wood board.

This synthetic resin liquid 5 is of an addition polymerization type.

That is, since the addition polymerization type synthetic resin liquid does not produce condensed water during curing, there is little decrease in transparency, and the transparency of the inside of the thin plate and the conduit grooves can be increased, and the color caused by the pigment can stand out.

The synthetic resin liquid may be colored and transparent in any color as long as the transparency is not significantly impaired. The method of injecting the synthetic resin liquid 5 is not particularly limited, but it is preferable to use a reduced pressure method or a pressurized/reduced pressure method since it is necessary to inject the synthetic resin liquid 5 evenly over the entire thin wood board. When the synthetic resin liquid is injected in this way, the colored pigment 3 inside the conduit structure is
is covered with a synthetic resin liquid 5 filling the conduit groove 2. That is, the synthetic resin liquid 5 is injected into the inside of the thin wood board 1, and at the same time, the synthetic resin liquid permeates into the colored pigment 3 in the conduit groove portion on the surface of the thin board and fills the recesses of the conduit board 2. . Next, the synthetic resin liquid 5 injected into the thin wood board is cured, but this curing method is by heating.
The method using an electron beam or radiation is also carried out by an appropriate method such as a method using a curing agent, and is not particularly limited.

By curing the injected synthetic resin liquid, the colored pigment 3 adhering to the conduit 2 of the thin wood blade is completely embedded and fixed in the conduit groove 2, and the transparency of the base of the thin wood blade is increased. As shown in Figs. 2 and 3, the colored pigment 3 inside the conduit groove can be seen not only from the frontage of the conduit groove 2 but also from its edge.The wood grain pattern stands out on the surface of the thin plate, making it clear and three-dimensional. appears.

Also, in the present invention, a colored and transparent addition polymerization type synthetic resin liquid is used as the synthetic resin liquid injected into the thin wood board 1. In the conduit part of the thin wood board tortoise, the color of the colored pigment 3 attached to the conduit board 2 is The deep color of the injected and hardened transparent synthetic resin overlaps to create a deep wood grain pattern.

At this time, the base of the wooden board 1 is also colored with colored synthetic resin, but unlike when it is painted or injected with a condensed synthetic resin such as female resin, the interior of the wooden board 1 is colored transparently. Since the wood thin board is colored by injecting an addition polymerization type synthetic resin liquid, there is no condensation water produced in the wood thin board, the transparency of the entire wood board is high, and the wood grain is improved by the coloring pigment on the surface. The pattern stands out clearly and becomes three-dimensional.In carrying out the present invention, it is important to note that when carrying out the present invention, "thin wood boards that are particularly thin and easily breakable (for example, 2
．． When using a thin plate (with a thickness of less than 100 mm), the lower surface of the thin plate 1 is made of plywood and a base material (not shown) made of a plastic sheet, asbestos paper, or other suitable material is bonded and integrated with the fiberboard. It is preferable to use it in terms of handling.Next, specific examples of the present invention will be shown.

Example 1 After gluing and integrating a sliced veneer of sen with a thickness of 0.6 to a plywood with a thickness of 2.7, a coloring pigment (brown manufactured by Mikuni Shiki Co., Ltd.) was applied to the surface of the veneer of the sen. A coloring liquid of 1:20:water was applied, the excess coloring liquid was wiped off from the surface of the veneer, and then it was left to dry for a day to obtain a colored wood board.

This colored wood board had a large amount of colored pigment attached inside the closed conduit grooves on the surface of the veneer, and the conduit grooves had a high degree of concealment and were dark colored.

Next, the colored wood board was placed in a vacuum pot, and after being evacuated to 20 skin Hg or less, unsaturated polyester: styrene: BPO = 5
A mixed resin solution of 03:50:4 was injected, left for 1 hour, returned to normal pressure, left overnight, removed from the pot, and heated in a hot press at 140°C under the conditions of 2 powdered rice and 2k9' carp. The synthetic resin liquid injected into the colored wooden board was cured by hot pressing.As a result, the colored pigment was firmly embedded and fixed by the synthetic resin inside the conduit groove on the surface of the wooden board, and the transparency of the thin board was increased. As a result, a reddish-brown decorative material was obtained in which the colored pigment was visible not only from the entrance of the conduit groove but also from the edge of the conduit groove, and the wood grain pattern was visible on the surface of the thin plate with a clear and three-dimensional effect. .

Example 2 A colored thick plate with the conduit grooves colored with the same colored liquid as in Example 1 was placed in a vacuum cooker, and after exhausting to below 20 Hg, the mixture was mixed with unsaturated polyester: BPO: oil dye (brown): 50:50.
:4:0.03 ratio colored synthetic resin liquid was injected, left for 1 hour, returned to normal pressure, left overnight, removed from the pot, and hot pressed at 140o0 for 20 minutes, 2kg.
'The synthetic resin liquid injected into the colored wood board was cured by heat-pressing under normal conditions.

As a result, the entire thin wood board has a highly transparent brown color, and the color of the colored pigment attached to the inside of the conduit groove closed on the surface of the thin board overlaps with the color of the synthetic resin that hides the surface, resulting in a depth that stands out on the surface of the thin board. A decorative material with a three-dimensional wood grain pattern was obtained. When the surfaces of the decorative materials obtained in Examples 1 and 2 were finished by applying a transparent paint, it was possible to obtain a smooth surface without any fading of the paint film.

As described above, in the present invention, a coloring agent containing an appropriate coloring pigment is applied to the surface of a thin hardwood board, and the coloring pigment is attached to the interior of the conduit structure closed to the surface of the thin board, thereby coloring the conduit groove, and then drying. Next, an addition-polymerized synthetic resin liquid is injected into the thin hardwood plate and cured to embed and fix the colored pigment in the conduit groove, and at the same time, the hardwood thin plate is made transparent. The coloring pigments are firmly fixed, and the transparency of the entire thin wood board is increased, making the wood grain pattern of the conduit grooves clearly and three-dimensionally created by the coloring pigments, creating a three-dimensional effect that could not be obtained with painted decorative boards. It is possible to obtain a rich and beautiful decorative material.

Furthermore, according to the present invention, by using a colored and transparent addition polymerization type synthetic resin liquid as the synthetic resin liquid injected into the thin wood board, it is possible to increase the transparency of the wood thin board and at the same time color it in any color. As a result, it is possible to obtain a richly varied appearance in which the color of the colored pigment inside the conduit groove and the color of the colored synthetic resin liquid go hand in hand, and in addition, in the conduit groove part of the thin wood board, these colors overlap, creating a deep appearance. It can form a wood grain pattern. In addition, in this case, unlike the case where only the surface of the thin board is colored by painting, the entire thin wood board is colored by injecting a colored transparent synthetic resin liquid, so the transparency of the entire thin wood board is high, and there is no obstruction to the surface of the thin board. The conduit grooves appear clearly and three-dimensionally, allowing a wood grain pattern with clear contrast to appear. In addition, in the present invention, the thin wood board may be used after being bleached or colored in advance. By coloring the thin wood board in this way before injecting the synthetic resin liquid, a multicolored decorative material is formed. Even in such cases, it is sufficient to use one type of transparent synthetic resin liquid, eliminating the need to prepare many types of colored synthetic resin liquids. The thus-formed A-Kyoku wood not only has a beautiful appearance as mentioned above, but also has the strength, hardness, abrasion resistance, impact resistance and Since the dimensional stability has been significantly improved, there is less damage due to impacts, etc., and the beautiful decorative surface can be maintained for a long period of time, so it can be used as a surface material for various purposes.
Synthetic resin also improves the water absorption of wood, so
It is also suitable for parts such as counters that are often wiped with water.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; Fig. 1 is a cross-sectional view of a thin wood board whose surface conduit grooves have been colored, and Fig. 2 is a cross-sectional view of the thin wood board after a synthetic resin liquid has been injected and hardened. FIG. 3 is a plan view thereof. 1...Thin wood board, 2... Conduit groove, 3... Colored pigment t 5... Synthetic resin. Zufu Kyōji Z Kyōji U Fake

Claims (1)

[Scope of Claims] 1. A colored pigment attached to the inside of the conduit groove opening on the surface of the hardwood thin plate is embedded and fixed in the conduit groove by injecting and curing an addition polymerization type synthetic resin liquid inside the hardwood thin plate. A decorative material characterized by transparent thin hardwood boards. 2. The decorative material according to claim 1, wherein the hardwood thin plate is integrally bonded to the surface of a suitable base material. 3. A coloring agent containing an appropriate coloring pigment is applied to the surface of the thin hardwood sheet, and the colored pigment is adhered to the inside of the conduit groove opened on the surface of the thin sheet to color the conduit groove, and then dried, and then addition polymerization is applied to the thin hardwood sheet. A method for manufacturing a decorative material, which comprises injecting and curing a mold synthetic resin liquid to embed and fix the colored pigment in the conduit groove, and at the same time making the hardwood thin plate transparent. 4. The method for producing a decorative material according to claim 3, wherein the synthetic resin liquid is a transparent addition polymerization type synthetic resin liquid colored in an arbitrary color.