JPH0825169B2 - Laminated lumber and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a laminated material adhered by an adhesive containing a pest repellent.

[Prior art and its problems]

In general, the laminated wood is made by vertically laying a base material such as a sawn board or a small timber to form a board having a required length, and applying an adhesive to the wood mouth of the board, and making the board thick with the fiber directions substantially parallel to each other. The laminate is formed by stacking and laminating the adhesive in the depth direction, the width direction, or the length direction via the adhesive, and then pressure bonding.

Laminated lumber is used for construction, such as stairs, handrails, heads, counters, panel cores, wall materials, long presses, sills, kamois, frames, skirting boards, rims, opening frames, and other surface materials such as walls, floors, and ceiling materials. Used as etc.

However, no drug treatment is performed on them.

In general life, life pests such as mosquitoes, gnats, flies, flies, mites, fleas, bed bugs, mainly cockroaches,
Not only is it unsanitary, but it is also unfavorable in terms of environmental hygiene, such as biting or stinging a person, and the part getting swelled or itched, which is uncomfortable for consumers.

In addition, with respect to the living pests, they were beaten, killed with an insecticide, or caught with an insect trap.

However, in any of the cases, the post-treatment requires labor and is accompanied by discomfort.

In addition, there are problems that the dead carcasses of living pests that have died in the corners, the interior of furniture, luggage, etc. where it is not possible to perform post-treatment will cause new molds and that they will be used as food for the living pests to breed. Was there.

Recently, carpets, jutans, etc. laid on the floor of houses have become hotbeds for mites, and the occurrence of mite, carcasses of mites, and zenzoku of children due to dung has become a major social problem.

[Means to solve the problem and its action]

The present invention has the following constitution in order to solve the problems of the conventional laminated wood. That is, the laminated material of the present invention uses the base material 1a such as a sawn board or a small square material vertically as a substrate or uses the base material 1a as a substrate,
This substrate was adhesively laminated via an adhesive layer mixed with a microcapsule type pest repellent to form a temporary adhesive laminate, and the temporary adhesive laminate was pressure-bonded to form a laminated material. It is a thing.

According to the present invention, the microcapsule type pest repellent in the adhesive is dispersed with the passage of time so as to prevent living pests from approaching the laminated wood by adopting such a constitution.

[Explanation of Example]

 Examples of the present invention will be described below.

Insert a thick saw or pre-coarsely flitch into a slitting machine such as a ripping saw, gang ripper, etc., and obtain a base material 1a such as a sawing board or small timber cut into arbitrary dimensions pillars, beams, curved arches, In the case of a structural laminated wood such as a girder, a large-sized sawn plate or square wood is used as a base material.

The base material may have a planar surface on two or four sides, if necessary.
Planing is performed using a spot removal plane.

The base material 1a has a scarf joint and a finger joint at its mouth end surface, and then an adhesive agent 2 is applied to the base material 1a. A vertical joint process such as finger joint is performed to obtain the substrate 1 having a required length.

There is also a case where the substrate 1 is obtained by only transversely cutting the wood opening portion, applying the adhesive 2 to the wood mouth surface, and performing vertical piecing processing using a butt joint for bonding in the same manner as above.

In the case where the base material 1a can be obtained for a long time, and when the size of the laminated material to be the product is small, the vertical lapping process may be omitted and the substrate 1 may be used as it is.

If necessary, a microcapsule type pest repellent may be added to the adhesive 2 used for the vertical piling process.

The obtained substrate 1 is an adhesive 3 in which a pest repellent of a microcapsule type is mixed in the wood mouth portion in the thickness direction or the width direction by using a coating device such as a spreader or a spray.
Apply.

The glued substrate 1 is laminated with a plurality of layers in the thickness direction or the width direction in which the fiber directions thereof are substantially parallel to each other to obtain a temporary adhesion laminate. This temporary adhesive laminated body is obtained by laminating a single piece or a plurality of pieces, and performing pressure-bonding adhesion by cold pressure or hot pressure using a turnbuckle, cold press, hot press to obtain a laminated material.

In some cases, a high-frequency heating press or a turnbuckle-tightened material is high-frequency heated and pressure-bonded.

 Laminated wood is cut into small pieces and planed to make products.

The laminated material thus obtained has a microcapsule type pest repellent inside the adhesive layer 3, and the pest repellent gradually diffuses to the outside. Therefore, long-term efficacy is maintained.

Since the pest repellent is encapsulated in microcapsules, the pest repellent itself does not diffuse into the atmosphere before use, during storage, or before being mixed with an adhesive and its effect is reduced. There is no.

The outer shell of the microcapsule is destroyed at the time of pressure bonding, and the microcapsule is mixed and permeated into the adhesive layer and gradually diffused to the outside to exert its effect.

As the pest repellent, a triamide-based pest repellent having the following structure 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 For example, its pests As an example of the repellent, manufactured by Daiwa Chemical Industry Co., Ltd., trade name "Anninsen C-EM""AninsenC-1"
For example, the product name is "Lever DET" manufactured by Yoshitomi Pharmaceutical Co., Ltd.

They also have the chemical name "N, N-diethyl-m-toluimide".

As described above, laminated wood with a pest repellent built-in,
Living pests cannot approach the laminated wood.

Even if the laminated wood is used as it is, any makeup such as decorative sheet pasting, veneer pasting, coloring or transparent painting, etc. can also be used by applying molding processing such as molding, grooving processing using a moulder, plane, grooving machine etc. May be.

〔The invention's effect〕

By using the laminated wood, the pest repellent contained in the adhesive layer is released into the atmosphere, and the interior of the room using the laminated wood,
Not only furniture but also ceilings, floors and walls are repelled against living pests and the repellent effect is exerted for a long period of time, so that people can live in a comfortable environment.

[Brief description of drawings]

1 is a perspective view of a substrate 1 obtained by vertically splicing a substrate 1a with a scarf joint, FIG. 2 is a plan view of a laminated material in which the substrate 1 is laminated and bonded in a width direction and a length direction, FIG. Perspective view of the laminated material obtained by laminating and adhering the substrate 1 in the thickness direction, 1: substrate, 1a: base material, 2: adhesive or adhesive layer at the vertical connection part, 3: adhesive or adhesive at the adhering part between the substrates layer.

Claims (3)

[Claims] 1. A substrate is formed by vertically laying a base material 1a such as a sawn board or a small square bar in a fiber direction substantially parallel to each other, or the base material 1a is used as it is as a substrate 1, and the substrate 1 is used in the fiber direction. In a laminated material obtained by assembling and adhering in parallel to each other in a thickness direction, a width direction or a length direction, a substrate 1 is adhered and laminated via an adhesive layer 3 containing a microcapsule type pest repellent. Laminated lumber characterized by: 2. A base material 1a such as a sawn board or a small square piece cut to an arbitrary size is vertically stacked to form a substrate 1, or a base material.
1a is used as the substrate 1 as it is, and after the substrate 1 is planarized if necessary, an adhesive agent containing a microcapsule type pest repellent is applied to the arbitrary wood mouth portion of the substrate 1 in the width direction and / Or longitudinal and /
Alternatively, a method for manufacturing a laminated material is characterized in that a plurality of laminated sheets are laminated in the thickness direction to form a temporary adhesive laminate, and then the temporary adhesive laminate is pressure-bonded. 3. The method for producing a laminated material according to claim 2, wherein a microcapsule type pest repellent is mixed in the adhesive layer 2 in which the substrate 1a is vertically cast.