JP3475283B2 - Laminated material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel board and a panel core material mainly used in houses and offices, and is a combination of a specific gravity of laminated materials and front and back materials for floors, walls, ceilings and roofs. It can be applied to building materials such as doors, tatami mats, etc.

[0002]

2. Description of the Related Art Conventionally, panel materials used for houses and construction have generally been plywood, MDF, OSB. However, due to the protection of the tropical rain forest, it becomes difficult to cut down and import large-diameter trees, and it is necessary to manufacture small-diameter trees with poor workability and low yield, and panel materials using low-grade materials that have not been used until now. It is coming. Furthermore, recently, the felling of wood itself has been suppressed from the standpoint of environmental protection, and the production of building materials using only wood eventually becomes a high cost material, and when used in large quantities, the price is high. It has always been a problem.

Under such circumstances, when it was attempted to secure a laminated material for a panel having a certain performance, a thin piece of wood, a wood veneer, a piece of wood, which had a small element, was not used so far. The use of plant stems, such as koryan and sugar cane, is increasing. However, since these materials are porous, when the laminated material is manufactured, after being crushed temporarily by the pressure at the time of pressing,
Since a springback phenomenon in which the thickness returns again due to moisture or humidity is remarkable, it was difficult to obtain a laminated material having high accuracy and strength. Furthermore, since these materials contain a lot of sugars, they are easily damaged by molds, pests and decay, and especially those of plant stems are notable.

[0004]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks, and the processing method is simple, and it is possible to uniformly impregnate the inside of a material with an adhesive or a processing chemical. It is intended to provide a laminated material in which the effect of the adhesive can be maintained.

[0005]

Means for Solving the Problems The laminated material of the present invention, wood veneer, wood pieces, wood flakes, the laminated material that even without low plant stems are composed of one or a combination thereof, or a laminated material After punching a hole in the thickness direction so as to cut the fiber on at least one surface of the constituent material, one or a kind of an adhesive agent and an antiseptic agent, an antifungal agent, an insect repellent, a fireproofing agent, a dimensional stabilizing agent or the like in the material. The method is characterized in that after applying or impregnating a chemical compounding two or more of the above, the layers are bonded together.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as a means for making a hole in a laminated material composed of a wood veneer, a piece of wood, a thin piece of wood, a plant stem or a constituent material thereof, a large number of projections are formed on the surface at appropriate intervals. Pressing with a steel roll etc. provided,
Further, in addition to the rotary roll type, it is possible to perform a pressing process with a flat plate provided with a protrusion or a perforating process with a laser beam. However, the roll type is preferable in terms of equipment.

The shape of the projections provided on the surface of the roll or the like is not particularly limited as long as it can cut the fibers of the wood veneer, the thin piece of wood, the piece of wood, and the plant stem, and it is a pyramid, a truncated pyramid, or a prism. A shape, a conical shape, a frustoconical shape, a narrow plate-shaped projection, or the like can be used, but a pyramid shape is particularly preferable.

The laminated material of the present invention can be obtained by laminating the constituent materials of the above-mentioned laminated material by a conventional method and treating at least one surface of the laminated material by making a hole in the above-mentioned method. May be subjected to the above-mentioned drilling process, and these constituent materials may be laminated and adhered with an adhesive to manufacture. The constituent material of the laminated material may be, for example, a thin wooden piece, or may be formed into a plate shape such as a strand board in which the thin wooden pieces are laminated and bonded. In the case of the latter plate-like material (hereinafter referred to as a wooden board or the like), the target laminated material can be manufactured by applying an adhesive to the above-mentioned punched material and laminating and laminating a required number of layers. Further, the production of laminated materials, antiseptic agents, fungicides, insect repellents, fire retardants,
An adhesive containing one or more kinds of treatment agents such as a dimension stabilizing treatment agent may be applied for lamination and adhesion, or after a processed wood board is treated with a treatment agent by impregnation, etc. It is also possible to laminate and bond chemical-treated wood boards and the like using an adhesive. Furthermore, after processing the processed wood veneer or the like with the treatment agent, it may be laminated and adhered with an adhesive containing the treatment agent.

[0009] As the treating agent, those usually used for treating wood can be used. For example, as a preservative, Sampras (3-bromo-2,3-diiodide-
2-propenylethyl carbonate), IF-100
0, S-421, xylazane AL, etc.
F-1000, xylazane AL, troisan, etc., insect repellents such as hoxime, fenitrothion, dichlorophenphos, chlorpyrifos, etc., fire retardant boron-based flame retardants,
Low molecular weight phenolic resin, thermosetting polyethylene glycol (PEG) as dimension stabilizer such as phosphorus-nitrogen flame retardant
Examples thereof include resins, but the invention is not limited to these. In addition, it is also possible to color the desired name tree with a coloring agent such as a dye.

In the present invention, the preservative or antifungal agent is one selected from the group consisting of nitrile antibacterial agents, pyridine antibacterial agents, haloalkylthio antibacterial agents, organic iodine antibacterial agents and thiazole antibacterial agents, or It is preferable to use an antibacterial composition containing two or more kinds of antibacterial agents as active ingredients, and particularly preferably one containing the above five kinds of antibacterial agents. The antibacterial composition is characterized by further containing a benzimidazole antibacterial agent, if desired.

Specifically, the antibacterial composition comprises a haloisophthalonitrile compound as the nitrile antibacterial agent, a sulfonylhalopyridine compound and / or a pyridinethiol-1-oxide compound as the pyridine antibacterial agent, and a haloalkylthio compound. The antibacterial agent is a haloalkylthiosulfimide compound, the organic iodine antibacterial agent is an iodosulfonylbenzene compound, the thiazole antibacterial agent is an isothiazolin-3-one compound, and the benzimidazole antibacterial agent is a benzimidazolecarbamic acid compound and / or The composition is selected from thiazolylbenzimidazole compounds. In the antibacterial composition, each antibacterial agent is selected and used in various proportions according to the purpose, and diluted with an appropriate solvent such as water or alcohol solution, or added or blended as it is to an adhesive or the like. . As the adhesive, those usually used in this type of field can be used.

More specifically, as a constituent antibacterial agent of the antibacterial composition, a nitrile antibacterial agent is 2, 4, 5, 6
-Tetrachloroisophthalonitrile as a pyridine antibacterial agent, 2-pyridinethiol-1-oxide sodium and 2,3,5,6-tetrachloro-4-methylsulfonyl pyridine as a haloalkylthio antibacterial agent N, N-dimethyl-N'-phenyl-N '-(florodichloromethylthio), sulfimide and N-florodichloromethylthiophthalimide are used as organic iodo-based antibacterial agents and include joodomethyl-p-tolylsulfone and 3
-Ethoxycarbonyloxy-1-bromo-1,2-jodo-1-propene as a thiazole antibacterial agent,
2- (n-octyl) -4-isothiazolin-3-one is used as 2- (4-
Thiazolyl) -1H-benzimidazole and 1H-2
Mention may be made of methyl benzimidazole carbamate.

[0013]

Embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

EXAMPLE A Koryan sheet-like article 1 obtained by joining and bonding Kolyan one year after cutting with a string machine in the width direction,
As shown in FIG. 2, by passing between the steel roll 2 and the rubber roll 4 provided with a large number of projections 3 for punching, a large number of holes 5 are formed on one surface of the Koljan sheet-shaped product 1, turned over, and passed through in the same manner. A number of holes were drilled on both sides of 1 and fiber cutting was performed.

The hole 5 is a pyramidal recess having a width of 7 mm, a length of 3 mm, and a depth of 6 mm, which is formed like a puddle on the entire surface of the Koryan sheet 1. A treatment agent (Y) obtained by mixing 2% (by weight) of the antibacterial composition A (antibacterial agent mixture) with a polyurethane adhesive (manufactured by Koyo Sangyo Co., Ltd.) as a mildew proofing agent is uniformly spray-coated on the sheet-shaped material 1. Were laminated so that the fiber directions were substantially orthogonal to each other and laminated in 5 plies.

Separately, a 2.0 mm-thick single plate 7 of radiata pine stripped by the prepared rotary lace was placed on the front and back surfaces of the above 5-ply board to form 7 plies. Next, this 7-ply board was set in the board surface of a pressurizing device in which a sealing material (silicone rubber) was arranged on the board surface so that steam would not leak from all sides, and it was pressed at 15 kg / cm ² . Then, the air inside the sealing material on the surface of the pressure plate was decompressed by a vacuum pump to a degree of vacuum of 20 Torr. Finally, at the temperature of 180 ° C, steam of 7 atm was simultaneously injected into the sealing material from four directions to obtain a thickness of 36 mm x width of 910 mm and a length of 1 mm.
A wall panel material having a laminated material 8 of 818 mm and a specific gravity of 0.3 was obtained (see FIG. 1).

An example of the punching device used for carrying out the present invention will be described. In the punching of the above-mentioned Coryan sheet-like object 1, a steel roll 2 for processing and a rubber roll 4 provided with a large number of projections 3 for drilling on the surface. Although a combination of rolls is used, steel rolls 2 may be provided on both the upper and lower sides as shown in FIG. In the case of a wood veneer, a thin piece of wood, a piece of wood, and a plant stem, a large number of recessed holes 5 are similarly formed in the surface by passing through such rolls, and the fiber is cut.

3 and 4 are perspective views showing an example of the projection 3, and FIG. 3A shows a pyramid-shaped projection 3a and FIG. 3B.
Shows a truncated pyramid-shaped protrusion 3b, FIG. 4 (A) shows a narrow plate-shaped protrusion 3c with a sharp tip, and FIG. 4 (B) shows a narrow plate-shaped protrusion 3d with a flat upper surface. . The hole is a recessed hole formed by press-fitting the protrusion, and the processed hole penetrates the Coryan sheet-like material 1 as shown in FIG.
The tissue is impregnated from the cut surface of. The same applies to wood veneer, wood slice, wood slice, and plant stem.

The holes formed by the projections are not necessarily through holes, and it is conceivable that the holes can be formed from both the front and back sides by the same method. If the distance between the holes provided is narrowed, the amount of the treatment agent impregnated will also be increased. You can control. As the drilling process, as shown in FIG. 6, two upper and lower processing rolls 2 may be used to form the holes 5 at the same positions as the front and back sides of the Koryan sheet-shaped product 1, and as a method of providing the holes 5, FIG. The holes may be provided so that the positions of the holes from the front and back surfaces are alternated as shown in FIG.

Test Example 1 A mold resistance test was carried out on the antifungal-treated laminate material (product of the present invention) obtained in the example, based on the JIS Z2911 standard. The test results are shown in Table 2. Here, as comparative materials, those made with an adhesive containing a mildewproofing agent without puncturing (containing a mildewproofing agent without holes), and those made with an adhesive without a rustproofing agent (No mold agent) was used.

The antifungal agent (mixed antibacterial composition) contains 2,4,5,6-tetrachloroisophthalonitrile (nitrile antibacterial agent) in a weight ratio to the total amount of the composition, respectively.
%, 2,3,5,6-tetrachloro-4-methylsulfonylpyridine (pyridine antibacterial agent) 17%, N, N-
Dimethyl-N'-phenyl-N '-(florodichloromethylthio) sulfimide (haloalkylthio antibacterial agent)
9%, diiodomethyl-p-trisulphone (organic iodine antibacterial agent) 40%, and 2- (n-octyl) -4-
Isothiazolin-3-one (thiazole antibacterial agent) 14
% Antibacterial composition (1) was used.

A mixture of the following bacteria was used as the test bacteria. Aspergillus niger ATCC 9642 Penicillium funiculosum ATCC 9644 Cladosporium cladosporioides IFO 6348 Aureobasidium pullulans IAM F 24 Gliocladium virens ATCC 9645

[0023]

[0024] A to C indicate the number of tests.

Regarding the antifungal effect, it can be said that a uniform antifungal effect was obtained because a stable antifungal effect was obtained with holes and mixing of antifungal agent. In the antibacterial composition (1), a thiazole antibacterial agent was added to 7%, and 2- (4-thiazolyl) -1H-benzimidazole 7% was added as a benzimidazole antibacterial agent to make the total amount 100%. The same test was performed with the antibacterial composition (2) and similar results were obtained.

Test Example 2 A swelling test was conducted on the laminated material (Example 1: product of the present invention ). The test results are shown in Table 3. Here, a non-perforated laminated material (non-perforated product) was tested as a comparative material, immersed in water at 20 ° C. for 24 hours, and the rate of change in thickness before and after immersion was determined. The underline is an abbreviation for the test material in the table.

[0027]

[0028]

INDUSTRIAL APPLICABILITY According to the present invention, a preservative and an antiseptic agent are evenly applied to the inside of a porous material by forming a large number of recessed holes having a shape in which fibers such as wood veneer, thin wood pieces, wood pieces and plant stems are cut. By adding mold, fireproof, insect repellent, and dimension stabilizer,
The desired performance can be ensured even when various low-grade woods and plant stems are used, and an adhesive is added to the inside to strengthen the adhesive strength, which also improves the conventional problems such as strength and swelling. The effect obtained is extremely beneficial such as being extremely large.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of the manufacturing apparatus of the present invention.

FIG. 3A and FIG. 3B are perspective views showing examples of protrusions used in the present invention.

4A and 4B are perspective views showing another example of the protrusion used in the present invention.

FIG. 5 is a sectional view showing an embodiment of the present invention.

FIG. 6 is a partially cutaway sectional view showing an embodiment of a hole punching device used in the present invention.

FIG. 7 is a cross-sectional view showing an example of a wood veneer or the like used in the present invention.

[Explanation of symbols]

1 Kolyan sheet 2 steel roll 3 Protrusion for processing 4 rubber rolls 5 recessed holes 6 adhesive 7 veneer 8 laminated materials

Continuation of front page (51) Int.Cl. ⁷ Identification code FI B27K 3/50 B27K 3/50 B

Claims (5)

(57) [Claims] 1. A laminated material obtained by laminating and adhering at least one selected from a wooden veneer, a piece of wood, a thin piece of wood, and a sorghum stalk, which is a constituent material of the laminated material. At least one surface of the thin piece and the Koryan stalk has pyramidal or truncated pyramidal projections having a surface for cutting fibers of the constituent material, pushed into the constituent material to cut the fibers, and a hole formed by the projections in the thickness direction. After opening a large number at appropriate intervals, the constituent materials were laminated and adhered using an adhesive containing one or more of preservatives, fungicides, insect repellents, fireproofing agents and dimensional stabilizing agents. product layer material shall be the features. 2. The laminated material according to claim 1, wherein a material having a foaming property is used for the adhesive. 3. The antiseptic or antifungal agent is one or two selected from the group consisting of nitrile antibacterial agents, pyridine antibacterial agents, haloalkylthio antibacterial agents, organic iodine antibacterial agents and thiazole antibacterial agents. The laminated material according to claim 1, which is an antibacterial composition containing the above as an active ingredient. 4. The laminated material according to claim 3, wherein the preservative or antifungal agent is an antibacterial composition further containing a benzimidazole antibacterial agent. 5. The antibacterial composition, wherein the nitrile antibacterial agent is a haloisophthalonitrile compound, the pyridine antibacterial agent is a sulfonylhalopyridine compound and / or a pyridinethiol-1-oxide compound, and the haloalkylthio antibacterial agent is a haloalkylthio antibacterial agent. Alkylthiosulfimide compounds, organic iodine antibacterial agents from iodosulfonylbenzene compounds, thiazole antibacterial agents from isothiazolin-3-one compounds, benzimidazole antibacterial agents from benzimidazolecarbamic acid compounds and / or thiazolylbench The laminated material according to claim 4 , which is a composition selected from imidazole compounds.