JP2000167809A - Working method for decorative wood utilizing cut end face of parallel laminated plywood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working method for decorative wood utilizing a cut end face of a parallel laminated plywood in which a log is worked into veneers by using a rotary lathe to contrive more effective practical use of wood and the veneers are parallel laminated, clamped and bonded. SOLUTION: A log material is cut into veneers by using a rotary lathe and the cut veneers are parallel laminated by arranging respective cut end faces. A parallel laminated plywood is formed by clamping, bonding and working. Also, the laminated plywood is vertically cut in the rectangular, oblique or curved facelike directions for the longitudinal direction of the laminated plywood. A cross wood grain pattern in the cut end faces is revealed in the cut face and made to a utilizing face. A permeable coloring agent is applied to the cut end face 10b of the laminated plywood and permeating treatment is performed. Wood material of the cut end face 10b is allowed to react with a coloring compositional component and made to material color different from the material color of wood material in the cut end face 10b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for effectively utilizing wood, in which logs are cut into single sheets by using a rotary lace, and the single sheets are stacked in parallel and pressed and bonded to form a parallel stack. The present invention relates to a method for processing decorative wood using plywood as a plywood and using the opening of the laminated plywood.

[0002]

2. Description of the Related Art In the prior art, most of the laminated plywoods are processed by laminating cutting veneers by rotary lace to process parallel laminated plywood, and utilizing the beauty of the side surfaces of the laminated plywood. However, compared to a laminated plywood obtained by bonding a veneer into a cross shape, it is characterized by a clearer edge and sides. Conventionally, there is a WPC processing method as a processing method for eliminating defects in wood. In this treatment, vinyl-based monomers and other synthetic resins are pressure-injected into wood using a pressure can, and are subjected to heat polymerization or radiation treatment and WPC processing to produce high-grade building materials, floor materials, Used for sports equipment, musical instruments, etc. Although this wood processing method is excellent in the quality of the processing material, it is expensive due to large processing equipment, long processing time, complicated processing technology, etc., the use range is limited, and the processing target The timber is limited to high-grade hardwood species such as oak, hippopotamus, sen, maple, ash, zelkova and beech.

[0003]

However, since the conventional laminated plywood expresses a parallel pattern on the side surface of the laminated plywood, the strength of the laminated plywood is low, and the laminated plywood is used only as a base material such as furniture materials and building materials. The situation is limited. The present invention is intended to solve the above-described problems, and is an artificially planted tree species such as cedar, pine, larch, and radiata pine, which have been excluded from the conventional tree species, and has disadvantages such as resin, knot, and skin infestation. It is intended for wood that is low in price, has a low color, and is easy to obtain and sell in quantity, and has a simple technical treatment. The purpose of this project is to use natural wood that is relatively low in both quality and aesthetics, such as cedar, larch, and radiata pine. Lace it into a veneer veneer, laminate this veneer in parallel, press-bond and process it into a parallel laminated plywood, perpendicular to the longitudinal direction of the laminated plywood, vertical, inclined or curved Cut the laminated veneer in a shape Was to machine shaped to allowed to emerge mouth interlacing wood grain pattern, it is intended to provide a processing method of a cosmetic timber which utilizes a butt end surface of the parallel laminated plywood.

[0004] Further, a penetrating treatment is performed by applying a permeable coloring agent to the cut edge of the laminated plywood made of the low-quality material, and the wood material of the edge of the edge is reacted with a coloring component. It is an object of the present invention to provide a method of processing decorative wood using a woodcut surface of a parallel laminated plywood having a material color different from that of the surface wood material.

[0005] Further, the laminated plywood is mixed with a special synthetic resin for improving the quality of wood, such as water resistance, dimensional stability, antiseptic and insect repellency, and a polymerization accelerator, and a penetrant having a high penetration and diffusion property is used as an inducing agent. As a result of soft WPC treatment, it penetrates into the wood and cures at room temperature in the wood to reduce water-related defects such as water absorption, warpage, cracking, dimensional stability, preservation and insect repellency, etc. Another object of the present invention is to provide a method for processing decorative wood using the edge of a parallel laminated plywood that can be used as ideal decorative wood.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a log is cut in a veneer using a rotary lace, and the cut veneer is cut in parallel with a cut edge. To form a parallel laminated plywood by pressing and bonding, cut the laminated plywood perpendicularly to the longitudinal direction of the laminated plywood at right angles, incline, or in a curved surface direction. The present invention is characterized in that a grain pattern is made to appear, and a kiguchi interlaced grain pattern is used.

According to a second aspect of the present invention, there is provided a method for processing decorative wood using the edge of a parallel laminated plywood, wherein the cut edge of the laminated plywood is coated with a permeable coloring agent and subjected to a penetration treatment. It is characterized in that the wood material of the wood edge is made to react to the coloring composition, and the wood color is made different from the wood color of the wood material of the wood edge.

According to a third aspect of the present invention, there is provided the method for processing decorative wood using the open end of the parallel laminated plywood according to the first aspect, wherein the laminated plywood is provided with water resistance, dimensional stability, antiseptic and insect repellency and the like. , A special synthetic resin for improving wood quality and a polymerization accelerator mixed with a highly osmotic and diffusive penetrant as an inducer, penetrates into the wood, hardens at room temperature in the wood, WP
It is characterized by being subjected to C processing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
With reference to FIG. 3, a description will be given of a method of processing decorative wood using the edge of a parallel laminated plywood.

As shown in FIG. 1A, as a first step,
Wood log 1 using rotary lace 2 and veneer veneer 1a
And dried by a drier mechanism (dryer) 3 shown in FIG. 1 (c) to a water content of about 10%, and a predetermined number of the dried veneers 1a are laminated as shown in FIG. 1 (d). Deposits,
An adhesive is applied between the layers by an adhesive applicator 4 shown in FIG. 1 (e), the layers are laminated in parallel, and a pressure is applied by a temporary pressing device 5 as shown in FIG. 1 (f). Then, pressure is applied by a hot press machine (hot press) 6 shown in FIG. 1 (g) to form a parallel laminated plywood 10 as shown in FIG. 1 (h).

Next, as a second step, the parallel laminated plywood 10 is processed into a parallel laminated plywood by a cold press machine 7 shown in FIG. 2 (b), as shown in FIG. 2 (b), cut in a direction perpendicular to the longitudinal direction of the front plate surface 10a of the parallel laminated plywood 10, and for decorative wood having a kiguchi interlacing grain pattern 10c using the kiguchi surface 10b as a use surface. Material 20. In addition, the above-mentioned intersecting grain pattern expresses an irregularly diverse pattern obtained by merging annual ring lines and a grain pattern appearing on the cleave surface of wood.

Next, in a third step, the raw material 20 for decorative wood is processed smoothly using the sander 8 or the like shown in FIG. Is molded. Further, as shown in FIG. 4, based on data that has been researched and tested in advance for each material to be treated, a permeable coloring agent suitable for the coloring molecule of each wood composition is applied to the product material 20 to form a color.

Next, in a fourth step, processing is performed to improve the quality of wood. The cedar exemplified above,
Tree species, such as larch and radiata pine, are susceptible to defects such as water resistance, dimensional stability, warpage, and cracks, and the wood is slightly soft. There is. In addition, it is a condition that the grain expressed on the surface to be used is processed so as to be more beautiful and conspicuous.

In order to enable such a processing purpose, it is practical to use a synthetic resin to achieve soft WPC. Resins used for such soft WPC treatment include vinyl oligomers, methacrylic acid,
Resins such as acryl, urethane and polyethylene glycol dimethacrylate, and oils and fats such as linseed oil and paraffin wax are appropriately mixed and used. Further, in order to promote hardening in wood, it is preferable to use a small amount (0.1 to 2%) of methyl ethyl ketone peroxide, ambisisobutyronitrile or the like as a polymerization initiator. As a penetrant that induces a resin or oil or fat as a main agent into wood, a penetrant having high penetration and diffusibility, in which camphor is slightly mixed with alcohol, is used with due care in terms of pollution.

Example 1 A cedar Nakame log (end diameter 24 cm, length 2 m) produced in Miyazaki Prefecture was fixed to a rotary lace equipped with a double chuck, and a 3 mm-thick veneer was cut to a minimum diameter of 4 cm. Thereafter, the width of the cut veneer was cut to 1 m, immediately inserted into a dryer, and dried to a water content of 10%. Dried veneers are separated into white sapwood and reddish heartwood and deposited.
Using a spreader (adhesive applicator), five sheets of white material and five sheets of red material are applied alternately to a total of 10 sheets of adhesive, and the respective veneers are laminated in parallel and cold pressed (temporarily). Temporarily bonded with a pressing machine).

For the lamination of white and red veneers, it is necessary to study the product design, and to change the number of laminations according to the design such as the shade of the wood color and the color expression of the pattern on the edge of the wood used by coloring. In the case of Japanese cedar wood, the composition of 3 mm thick white veneer / red veneer is the most beautiful cross-grain representation of lamination every 3 to 6 sheets. A 30-mm-thickness of a stack of 10 sheets is convenient for processing.
The laminated plywood temporarily bonded by the cold press was immediately transferred to a hot press, where the pressing force was 13 kg / cm ² and the heating temperature was 120 ° C.
To process parallel laminated plywood.

Next, thickness 3 cm × width 100 cm × length 185
Adhesive is applied to parallel laminated plywood (10 sheets) processed into cm and pressed by a cold press to obtain a thickness of 30 cm x a width of 1 m x
It was reworked into a 184 cm long board. This is a product material for the commercialization of checkerboard flooring of 30 cm square. This product material is reprocessed to make it the most unique and valuable product material for wood processing technology.
cm was cut into three pieces each having a width of 30 cm, and further cut from the surface of the front plate surface to a laminated parallel veneer at a right angle of 3 cm, thereby processing a 3 cm × 30 cm × 30 cm square plate material. On the 30 cm square surface of the cut edge of the 3 cm × 30 cm × 30 cm square lumber, a fantastic cross-grain pattern of the lumber surface appeared on the used surface of the plate material due to the expression of various and various wood qualities.

Next, a solution that develops a color by reacting with a color-forming molecule having a woody composition such as tannic acid, potassium dichromate, acenon, and sanestre is mixed with the infiltration material on the cross-grained pattern on the edge of the wood. 300 g / m ² was permeated into the wood material. For the mixing of the color forming solution, use a chemical corresponding to the material color required by the flooring material.For cedar wood, use the alkaline side solution for dark colors and the acidic side solution for light colors. Basically, they are mixed. By the mixed pattern of cedar reddish and white materials, and veneer complex wood, a fantastic cross-grain pattern that can not be expressed with ordinary wood is richer and deeper due to the reaction with the color former,
In addition, the expression was complicated, and the added value of wood could be increased to the utmost.

Further, in order to more clearly express the color and grain of the wood surface, about 10% of magnesium is added to alcohol.
%, It is possible to bring out a beautiful material surface.

Next, in order to enhance the required quality of the cedar flooring material, a resin such as acrylic, urethane, unsaturated polyester, polyethylene glycol and the like, and oils and fats such as linseed oil and wax are mixed with monohydric alcohol to form camphor. Was mixed with a mixed penetrant and processed into a cedar LVL processed material.

The fantastic cedar wood cross-checkered checkered flooring that has been subjected to the above-described processing is aesthetically pleasing, water-resistant, dimensionally stable, prevents the color of the wood from changing over time, and has antiseptic and insect-proof properties.
A product 20a that satisfies the elements required for many flooring materials, such as surface strength, improves the quality of cedar wood, which is a low-quality image, to a high-quality image, and pioneers a completely new page in terms of the use of cedar wood. We were able to.

Example 2 Dafrica larch logs (end diameter 20 cm, length 3 m) from Primorsky Krai, Russia were fixed to a rotary lace equipped with a double chuck, and a 3 mm-thick veneer veneer was cut. Were laminated in parallel to process a parallel laminated plywood. Further, a checkered pattern for flooring was processed from the parallel laminated plywood. (This step is the same as in Example 1.) However, in the case of Dafrica larch, it is not necessary to impregnate a synthetic resin to supplement the strength because it is hard and strong. However, in order to make the material color and grain of the cut material surface more attractive, the surface of the material was brush-painted with a treating agent obtained by mixing monohydric alcohol with 10% of magnesium at 100 g / m ² . As a result, the wood surface of Dafrica larch was expressed more clearly and beautifully in wood color and grain. However, since the wood fibers on the surface are separated and pierced into a stab, which is dangerous as a floor material, urethane resin is applied to the fantastic wood-mouthed surface of the cross-grain pattern (spreader coating, spray coating, etc.), and sanding after curing (Preferably 240th), and it was fixed by scribing by coating, and the spine protruding from the coating surface was cut smoothly.

As a result of the above-mentioned processing, Dafrica larch, which has a narrower application than cedar wood, can sufficiently serve as a floor material for footwear. Also, since the wood material of Dafari larch can express a clear color pattern compared to cedar wood,
The product 20a which can be used more than cedar was completed.

In the above-described embodiment, the laminated plywood processed into a parallel laminated plywood is cut perpendicularly to the longitudinal direction, but the cutting direction is not limited to this. Instead, the laminated veneer may be cut into a slanted or curved shape, and the cut veneer may be processed and formed so that a cut-and-crossed grain pattern appears on the cut surface.

Example 3 A log of southern yellow pine (end 30 cm, length 3 m), a kind of southern pine planted in the southern United States, was fixed to a rotary lace with a double chuck and had a thickness of 3 mm. The veneer veneer was cut, and the veneer was cut to a width of 1 m, inserted into a dryer for veneer drying, and dried to a moisture content of about 10%.

Next, the veneer was immersed for 12 hours in a mixed insecticide / termite-control aqueous solution of 15% caesin sodium solution, 10% hosan solution, 3% acryl solution and 3% polyethylene glycol solution, and then immersed in the insect solution for 12 hours.・ The veneer impregnated with the termite mixture is again dried with a veneer dryer to a moisture content of about 10%.
And dried.

Next, 300 g / m ² of an aqueous vinyl urethane adhesive was applied to the insect- and termite-proof treated and dried veneer, set in parallel in units of 7 sheets, and temporarily pressed with a cold press. Then, a parallel laminated plywood (LVL plywood) was processed by hot pressing with a hot press. Further, 300 g / m ² of a vinyl urethane adhesive was applied on the plywood processed by LVL,
13kg / set by parallel pressing
cm ² was pressure bonded for about 60 minutes. The LVL material thus bonded was a large LVL board having a thickness of 30 cm, a width of 1 m, and a length of 3 m.

Next, the large board LVL board is horizontally cut from a position 3 cm thick from the upper surface, and the cut surface is smoothed using a 240 sander with the cut surface as the upper surface. By cutting with an accuracy of 5 mm or less, a commercial flooring material having a thickness of 3 cm, a width of 15 cm, and a length of 3 m was obtained.

Next, 10% of magnesium was mixed with monohydric alcohol (ethanol), and 100 g / m ² of the mixed solution was applied to the upper surface of the floor plate material cut into a product size by brush.
The mixed liquid penetrates into the wood in about 30 seconds, and the color and grain of Southern Yellow Pine are more clearly expressed.
It was a very beautiful surface.

Furthermore, monohydric alcohol (ethanol)
The impregnating leader liquid in which camphor was mixed with 10% was used as 100, and a liquid obtained by mixing acrylic resin and urethane resin at a ratio of 15%, polyethylene glycol 10%, linseed oil 20%, and paraffin wax 5% was used as a treatment liquid. The product was applied on a floor material of Southern Yellow Pine, dried for about 6 hours, and then wiped off with a rag to obtain a product.

The thus treated and processed Southern Yellow Pine flooring material is excellent in expressing a sophisticated natural feeling of wood color and wood grain, and also has waterproofness, dimensional stability, chemical resistance, increased hardness, In addition to preventing the color from changing at all times, there are many advantages such as using Southern Yellow Pine, which is vulnerable to termite damage, to a material that is strong against termites, and succeeded in raising the added value of Southern Yellow Pine more than expected. did.

[0032]

As described above, according to the present invention, a parallel laminated plywood is used as a base material, and by using a novel concept which has not been used in the past, the edge of the parallel laminated plywood is processed to obtain wood grain. A variety of Kiguchi faces with completely different expressions
Newly created cross wood patterns with a variety of wood qualities, enabling the aesthetic expression of fantastic wood, especially with the use of cedar, larch, radiata pine, and other softwood materials that were previously inadequate and of low quality. , High-grade building materials and furniture materials. In addition, its aesthetic expressiveness is equal to or greater than that of teak, walnut, oak, karin, sen, tamo, zelkova, which is said to be the world's precious wood or high-grade wood. There is an effect that it is possible to provide a product that can realize demand development with higher added value for wood that has been called a low quality material.

[Brief description of the drawings]

1 (a) to 1 (h) are processing step diagrams of a method for processing decorative wood using a front end of a parallel laminated plywood according to an embodiment of the present invention.

FIGS. 2 (a) and 2 (b) are processing process diagrams of a method for processing decorative wood using the open end of a parallel laminated plywood according to an embodiment of the present invention.

FIG. 3 is a schematic view showing a state in which a used cut edge of a product material formed by the processing method of the present invention is processed.

FIG. 4 is a perspective view of a product material of the present invention.

FIG. 5 is a perspective view showing a decorative plate which is a product obtained by applying a coloring agent to the product material of the present invention and subjecting it to a penetration treatment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wood 1a Board veneer 2 Rotary lace 3 Dryer (dryer) 4 Adhesive applicator 5 Temporary press-clamping device 6 Hot-press machine 7 Cold press machine 10 Parallel laminated plywood 10a Front board 10b Wood mouth 10c Wood mouth crossing Grain pattern 20 product material 20a product

Claims (3)

[Claims] 1. The log material is veneered using a rotary lace, the cut veneers are laminated in parallel with their cutting edges aligned, and a parallel laminated plywood is formed by pressing and bonding. The laminated plywood is perpendicular to the longitudinal direction of the laminated plywood,
The cutting edge of the parallel laminated plywood is characterized in that it is cut perpendicularly in an inclined or curved direction, and a kiguchi-interlacing grain pattern is exposed on the cut surface, and the kiguchi-interlacing grain pattern is used as a surface. The processing method of the used decorative wood. 2. A wood material of the wood-cut surface of the laminated plywood, which is coated with a permeable coloring agent and subjected to a penetration treatment to cause the wood material of the wood-cut surface to react with a coloring component. A method for processing decorative wood using the edge of a parallel laminated plywood, characterized by using a material color different from the color. 3. The laminated plywood has water resistance, dimensional stability,
Infiltrate into the wood as a inducer a strong penetrative penetrant mixed with a special synthetic resin and a polymerization accelerator for improving wood quality such as preservative and insect repellency, and harden at room temperature in the wood.
The method for processing decorative wood according to claim 1, wherein the wood is subjected to WPC processing.