JPH0655362B2 - Particle board and method of manufacturing the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a particle board containing a pest repellent and a method for producing the same.

[Prior art and its problems]

Put the wood chips into the mixing device, then add and apply the adhesive. The wood chips coated with the adhesive are blown into the forming device to form a mat, and then cut to size and further pressure-bonded for particle board. And

Particleboard is used as a base material for floors, walls, ceilings, etc., and floorboards, wall materials, ceiling materials, furniture materials by applying arbitrary makeup such as pattern pattern printing, colored painting, decorative sheet pasting, veneer pasting on the surface. For example, it was cut into a small width, grooved, molded, and V-cut bent, and the surface thereof was given an arbitrary make-up and used as a work member such as a skirting board, a rim, and an opening frame. However, only a part of those used as a base material is provided with a mildew proofing agent and a chemical treatment is provided.

In addition, it was used as a floor material and floor base material for houses, and a carpet, jutan, etc. were laid on it. Generally, the carpet, jutan becomes a hotbed for mites when living pests are caused, and causes asthma in children. It became a social problem.

In addition, living pests such as cockroaches, flies, flies, flies, mosquitoes, mites, and fleas were treated with insecticides or taken with an insect trap, but post-treatment was troublesome, discomfort, and post-treatment was not possible There are problems such as kitchen furniture, corners such as sinks, dead pests dead in the back, new molds, and feeding pests and breeding pests.

In addition, the drug itself is highly dangerous and requires careful use.

Further, it has been proposed to mix an insecticide directly into the adhesive applied to the wood chips when manufacturing the particle board. However, this proposal has a drawback that a large amount of the insecticide diffuses into the atmosphere during storage of the adhesive or before impregnation into the wood chips.

[Means for solving problems]

We provide particle boards in which wood chips are adhered by an adhesive containing microcapsules containing pest repellents, and the pest repellents are built into the particle boards used for construction and furniture, indoors, furniture, etc. It is designed to prevent living pests from approaching and to prolong this effect.

[Description of configuration]

In the method of the present invention, wood chips that have been cut into an arbitrary shape are first charged into a mixing device, and an adhesive mixed with microcapsules containing a pest repellent is added to the mixing device. Apply. In addition, it is also possible to put the wood shavings into the defibration device and obtain the wood chips with the defibration interrupted.

Next, the wood chips are blown into the forming device.

Then, a wood chip is formed into a continuous mat with an arbitrary thickness by a forming device.

The wood chips formed in the mat shape are temporarily pressed and then temporarily cut to a predetermined size to form a temporarily pressed layered body.

Next, the temporary compression layered body is hot-pressed or cold-pressed to obtain a particle board.

As the pest repellent mixed in the adhesive, a microcapsule containing the pest repellent is used.

In the case of microcapsules, since the pest repellent is encapsulated, the pest repellent itself does not emit into the air before use, before storage, and before being mixed with the adhesive and used. The effect is not reduced.

The microcapsules containing the pest repellent are destroyed by heat and / or pressure by the final cold pressing or hot pressing, and the pest repellent is impregnated into the wood chips and gradually released to the outside. . In addition, some of the microcapsules may remain without being broken during pressing, but they remain in the board as they are, and the pest repellent component is released to the outside for a long time, and its effect is exerted.

The outer shell of the microcapsule is formed of a thermoplastic resin when it is destroyed by heat.

As described above, by using the particle board containing the obtained pest repellent, living pests are prevented from approaching.

The particle board may be used as a base material for floors, walls, ceilings, or the like, or may be a decorative particle board on the surface of which any makeup is applied such as pattern printing, decorative sheet attachment, and veneer attachment.

In addition, the effect depends on the target to be used.

When used as a ceiling material, it is possible to prevent living pests from entering the ceiling, invasion from outside, and generation in the ceiling.

Invasion of living pests from under the rim, generation under the rim, and invasion from the outside can be prevented by using as a floor material.

Even when it is used as a wall material, it is possible to prevent living pests from entering, generating and reproducing between the outer wall material and the wall material.

The pest repellent in the adhesive works effectively and prevents the invasion of minute living pests such as fleas and mites that enter the room through the gaps between the floor, wall and ceiling materials. .

If you look at one room as a whole, you can completely prevent the invasion and outbreak of living pests by using a particle board that incorporates pest repellents in all of its ceiling materials, floor materials, and wall materials. It is possible to maintain the cleanliness of.

Especially in the kitchen, it may be applied to the entire interior of the room, or may be used only as floor material in a general drawing room or guest room. Furthermore, by using it as a work material such as a skirting board, a rim, or an opening frame, it is possible to more effectively prevent invasion of living pests into the room. Cockroaches are especially effective in terms of keeping cleanliness because they have the habit of moving in the dark in the corners and when used as furniture board materials.

As the pest repellent, a toluamide-based pest repellent having the following structural formula is preferable.

_{However, R 1, R 2: H} CH 3 C 2 H 5 C 3 H 7 C 4 H 9 C 5 H 11 C 6 H 13 C 7 H 15 C 8 H 17 C 9 H 19 C 10 H 21 example pest repellent As an example of the agent, the brand name of Aninsen C-EM, which is a product of Daiwa Chemical Industry Co., Ltd., Aninsen C
-140, trade name Dipper DET, which is a product of Yoshitomi Pharmaceutical Co., Ltd. Also, their chemical name is N, N-diethyl-m-toluamide.

The present invention can be used for any wood chip board such as a wafer board, a freak board, a strand board OSB, etc. other than the particle board, which can be obtained by fixing and molding wood chips with an adhesive.

〔The invention's effect〕

As a manufacturing method, the pest repellent is encapsulated in a microcapsule and mixed into the adhesive applied to the wood chips, so the pest repellent diffuses into the atmosphere during storage of the adhesive and at the time of provisional compression layered body. Never. Then, it is impregnated into the wood with good yield by pressing.

Since the particle board of the present invention is formed by impregnating each wood chip with a pest repellent, each wood chip forming the particle board is impregnated with a pest repellent. The pest repellent is spread over the entire board, and the pest repellent is gradually and uniformly spread from the entire board, and the pest repellent effect is exerted for a long time.

Floor boards, wall materials, ceiling materials, etc.
When used as a building material such as furniture, the pest repellent is gradually diffused from the front surface side and the back surface side of the base material, and an excellent pest repellent effect is exhibited on both front and back surfaces of the building material. Furthermore, the pest repellent is also exerted from the wood mouth portion produced by cutting to process the particle board of the present invention into the intended shape, and the pest repellent effect is maintained even after being processed into an arbitrary shape. Is something that can be done.

Claims (3)

[Claims] 1. A wood chip coated with an adhesive containing microcapsules containing a pest repellent is used, wherein the microcapsules in the adhesive are destroyed by heat and / or pressure, and the pest repellent is used. A particle board, characterized in that the agent is molded while being impregnated in wood chips. 2. A wood chip cut into an arbitrary shape is placed in a mixing device, an adhesive containing microcapsules containing a pest repellent is added to the mixing device, and the wood chip is coated with the adhesive. A method for producing a particle board, which comprises forming wood chips into a mat shape to form a temporary compression layered body, and then adhering the microcapsules while destroying the microcapsules by pressure during compression. 3. The method of manufacturing a particle board according to claim 2, wherein the temporary compression layered body is compressed by thermal compression, and the microcapsules are destroyed by heat and pressure.