JPH063065B2 - Floor material and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a flooring material used indoors, and more particularly to a novel flooring material having a pest repellent effect.

<Prior Art> Conventionally, as flooring materials used in houses, plywood, floorboards such as particleboard, etc. on which carpet, jutan, etc. are laid have been generally used, but carpets and jutans are generally living pests, especially mites. Became a hotbed, and became a social problem such as causing asthma in children.

Therefore, in recent years, wooden floor materials have been reviewed and have been widely used.

As a wooden flooring material, a material in which a plywood is used as a base material and a veneer is pasted on the surface thereof, or a pattern pattern is printed after an arbitrary undercoat treatment or a decorative sheet is stuck is generally used. .

In addition, in these wood-based flooring materials, a fungicide is applied to the back side of the wood to prevent the formation of mold due to moisture from under the floor, or the back side of the wood to prevent damage due to flatworm, bark beetle, etc. Apply insect repellent,
In the plywood manufacturing process, plywood obtained by mixing an insect repellent into an adhesive has been used as a base material.

<Problems to be Solved by the Invention> However Wooden flooring which has been used conventionally, generally, 1 ^- × 6 ^- against many of a size (about 300 mm × 1800 mm) which are laid on the floor However, many abutting parts are present and exposed. As a result, dust and dirt are collected in the blind areas of these abutting portions, which is a hotbed for mites and the like. In addition, although wood-based floor materials that have been subjected to insecticidal treatment against forest pests such as bark beetles have existed in the past, they have not been treated against living pests such as mosquitoes, fleas, mites and cockroaches. It was

A variety of insect repellents against these living pests have been developed and marketed. Insect repellents (pest repellents) are generally used as a spray for insect repellent, and it is also practiced to repel pests by spraying this repellent on the surface of the flooring material, but it is immediately volatilized and released into the atmosphere. Therefore, it has a drawback that the pest repellent effect cannot be maintained for a long period of time.

<Means for Solving Problems> The present invention was devised to solve the problems in the above-mentioned conventional technology, in which veneer sticking on the surface and actual processing on the wood mouth part are performed, and the decorative surface is A flooring material characterized by comprising a top coat film layer containing a pest repellent mixed therein.

Further, the present invention is to apply a coloring paint to the surface of a veneer of a substrate having a veneer stuck to the surface and having a wood mouth portion actually processed, to color it in an arbitrary color, and then to apply a sealer, In a dry state, a topcoat paint mixed with a pest repellent is applied, and a topcoat film layer is formed from the topcoat paint.

<Explanation of the structure of the invention> The flooring material according to the present invention is one in which a veneer is stuck on the surface and the actual processing is applied to the wood mouth part, and a top coat film layer in which a pest repellent is mixed is formed on the decorative surface. It is characterized in that it is manufactured through the following steps.

First, in a known manner, a veneer is attached to the surface of the wooden board with an adhesive agent.

As the substrate, any one of wood-based plate-like bodies such as plywood, fiberboard, and wood shavings can be used. Further, it is preferable to use those which have been subjected to insect repellent treatment, antifungal treatment, antiseptic treatment and the like by any method. Further, chemicals such as insect repellents, fungicides, and preservatives can be appropriately added to the adhesive used for attaching the veneer.

Actual processing such as consensus processing and actual processing is performed on the opening of the substrate to which the veneer is attached.

Then, an arbitrary colored paint is applied to the entire surface of the veneer, and the paint is impregnated in the veneer. As the colored coating material, an appropriate resin coating material such as ultraviolet curable, electron beam curable or thermosetting can be used.

According to the method of the present invention, the coloring is directly applied to the surface of the veneer, so that the inside including the surface conduit groove is impregnated with the coloring paint. Therefore, the adhesion of the colored coating material is good, the coloring is performed uniformly, and the "deep" coloring is realized. In the conventional method, since the veneer surface was colored after applying the sealer, the conduit groove on the surface of the veneer was partially filled by the sealer layer, and the colored paint was not impregnated into the veneer interior. . Therefore, the adhesion was not sufficient, the coloring was likely to be non-uniform due to coating unevenness, and "depth" could not be expressed.

The coloring paint is cured by an ultraviolet ray or electron beam irradiation device to be colored, and then a sealer is applied.

When the applied sealer is undried or dry to the touch, an overcoat paint mixed with a pest repellent is applied thereon and cured to form an overcoat film layer. The pest repellent can be mixed into the top-coat paint by adding it directly into the paint resin or by adding it to the solvent and then mixing it into the paint resin.

Although the pest repellent mixed in the top coat is present in the cured coating layer, it passes through the molecules of the coating layer and is gradually volatilized and diffused into the atmosphere to prevent pests from repelling for a long period of time. It works well.

As a pest repellent used in the present invention, as a result of experiments by the present inventors, it was found that a toluamide-based pest repellent having the following structure is preferable.

The top-coat paint may be mixed with a pest repellent as described above and, if necessary, an abrasion resistant material to form a single top-coat coating layer, but in some cases, the coating layer may be formed in multiple layers. May be. That is, first as a top coat paint, a lower layer top coat paint is applied to form a lower top coat film layer,
Next, the upper coating composition for the upper layer is applied to form the upper coating film layer. In this case, the pest repellent can be mixed in either or both of the lower layer top coating composition and the lower layer top coating composition. The pest repellent mixed in the lower layer top coat paint is more than the pest repellent in the upper layer top coat paint.
Since the volatile components diffuse more slowly into the atmosphere, the pest repellent effect can be maintained for a longer period of time. Therefore, if a pest repellent is mixed into both of the lower layer and the upper layer top coating composition, the pest repellent in the latter has a prompt effect in a relatively short period, and the pest repellent in the former provides a long-term effect. A lasting effect is expected.

Further, in order to improve the wear resistance of the surface as the floor, it is preferable to add and mix wear resistant material fine particles such as aluminum oxide and silicon carbide in the top coat. In this case, the wear resistant material preferably has a particle size of 5 to 100 µ.

When the top coat film layer is formed in multiple layers as described above, an abrasion resistant material is optionally added and mixed in either or both of the lower layer top coat and the upper layer top coat. Especially when mixed in both of these paints, the lower layer paint contains a relatively large particle size (30-100μ) and the upper layer paint a relatively small particle size (5-29μ). It is a particularly preferred embodiment that the abrasion resistance and the designability of the floor material surface can be compatible in a high dimension. When a wear-resistant material having a large particle size is mixed in the upper layer coating material, the wear-resistant material is exposed on the surface of the coating film and is easily roughened, and the gloss is insufficient, resulting in deterioration in design. However, when it is used as a floor material for stores with shoes,
You may mix only a wear-resistant material with a large particle size.

The above-mentioned one-layer top-coat paint or bottom-layer top-coat paint is
Since the sealer is applied in an undried state or a touch-free state, the adhesion with the sealer becomes extremely good.

The sealer and top coat used in the present invention are
It is preferable that both are made of ultraviolet or electron beam curable resin. Therefore, after applying the top coat paint or the bottom coat paint for the lower layer on the undried or touch-free sealer, the sealer and the paint are cured by irradiation with ultraviolet rays or electron beams. The upper layer top coating composition is applied after the lower layer top coating composition is cured, and is similarly cured.

Since these coating materials of ultraviolet ray or electron beam curable resin are cured by radical polymerization reaction, they can be reacted with or without a solvent. Therefore, the coating thickness is formed almost as the coating thickness after curing, and a uniform coating layer can be formed. Further, it can be easily cured by a known ultraviolet or electron beam irradiation device, which contributes to simplification of the manufacturing process.

In this way, a novel flooring material is produced in which a topcoating coating layer consisting of one or multiple topcoating materials in which a pest repellent and, if necessary, an abrasion resistant material are mixed is formed on the surface layer of the flooring material.

<Examples> The back surface of plywood is insect-proofed, mildew-proofed, and antiseptic treated, the front surface is pasted, and the actual surface is applied to the wood mouth. The paint was applied and impregnated on the surface of the veneer, and the paint was cured and colored by an ultraviolet irradiation device.

A polyester resin-based UV-curable sealer is applied to the surface, and immediately after that, an abrasion-resistant material (silicon carbide 20 to 50 μ) and a diethyltoluamide-based pest repellent (manufactured by Daiwa Chemical Industry Co., Ltd., trade name Aninsen) C-14
0) was added and mixed to apply a polyester resin-based UV-curable coating material. Then, the lower layer top coat composition was cured by an ultraviolet irradiation device to form a lower layer top coat film layer.

On the surface of this lower layer top coating film layer, as a top coating material for the upper layer, a polyester resin type UV curable coating material to which a diethyltoluamide type insect repellent (manufactured by Daiwa Chemical Industry Co., Ltd., trade name Aninsen C-140) was added and mixed was applied. The upper coating composition for the upper layer was cured by an ultraviolet irradiation device to form an upper coating layer.

In this way, a flooring material having a top coating film layer mixed with a pest repellent and an abrasion resistant material was obtained. The floor material obtained had good surface gloss and excellent smoothness.

A test for confirming the repellent effect of the obtained flooring material on cockroaches was conducted in the following manner.

The treated floor material obtained by the present invention was cut into 15 × 30 cm, and the untreated floor material cut into the same size was laid side by side in a resin box (30 × 30 cm), each of which A 10 x 10 cm plywood was piled up on the floor material of No. 3 with a gap of 3 to 5 mm to make it a hiding place for cockroaches. At the same time, water and food were placed and left for 5 days. As test insects, 30 German cockroaches were used.

Five days later, when the number of cockroaches inhabiting under the plywood, which was a hiding place, was observed, the results shown in the following table were obtained.

As is clear from the results in the table, in the untreated floor material, no repellent effect against cockroaches can be obtained, whereas in the floor material treated with insects according to the present invention, the repellent effect on cockroaches is maintained over a long period after production. Was confirmed to be sustained, and the remarkable effect of the present invention was confirmed.

<Effect of the Invention> Since the pest repellent is mixed in the top coating film layer of the flooring material, the repellent is gradually volatilized and diffused into the atmosphere,
It is possible to exert a repellent effect against living pests such as fleas, mites and cockroaches over a long period of time.

Claims (6)

[Claims] 1. A flooring material having a veneered surface and a wood mouth portion actually processed, wherein a top coating film layer mixed with a pest repellent is formed on the decorative surface. . 2. The top coat film layer comprises two layers, a lower top coat film layer and an upper top coat film layer, wherein the pest repellent is mixed in at least one of the top coat film layers. The flooring material according to claim 1, which is characterized. 3. The flooring material according to claim 1 or 2, wherein the pest repellent is a toluamide-based pest repellent having the following structure. 4. A veneer surface of a substrate having a veneer stuck to the surface and having a wood mouth portion actually processed, a colored paint is applied to the veneer surface for coloring in an arbitrary color, and then a sealer is applied. A top coating film containing a pest repellent is applied onto the sealer while being in a dry state or a touch-free state, and the sealer and the top coating material are cured to form a top coating film layer. And a method of manufacturing a flooring material. 5. The above-mentioned top-coat paint is composed of two types, a lower-layer top-coat paint and an upper-layer top-coat paint, wherein the pest repellent is mixed in at least one of these lower-layer and upper-layer top-coat paints, and the lower-layer above the sealer. Apply topcoat paint,
The flooring material according to claim 4, characterized in that after curing to form a lower-layer topcoat coating film layer, the upper-layer topcoat coating material is applied and cured to form an upper-layer topcoat coating film layer. Manufacturing method. 6. The sealer and the top coat are both made of an ultraviolet curable resin or an electron beam curable resin, which are applied and then cured by irradiation with ultraviolet rays or an electron beam. Range 4th or 5th
A method for producing a flooring material according to any one of items.