JPH0691608A - Manufacture of resin-impregnated wooden article - Google Patents

Abstract

PURPOSE:To make effective use of lumber by drying holed or aged tree or lumber, applying resin for conduit interruption on the inner periphery of the holes, and then pouring transparent thermosetting resin thereinto. CONSTITUTION:Lumber 3 with a hole 2 Is dried by 15-20% or less of moisture content. As conduct interruption resin, e.g., a sealer agent composed of blending polyester, thickener, and hardener to stylene monomer is applied on the inner periphery of the hole 2 of lumber. In the next place, the end portions 5 of the hole 2 of lumber are spread over by an air interruption sheet 6, and a transparent thermosetting resin such as unsaturated polyester resin is filled in the hole 2 to subsequently be hardened. In this process, an ornament of wooden article or the like can be obtained. Besides, when thermosetting resin is filled by every 15-20mm thickness, and decorations combined use of anchors are inserted on the way, the decorations appear in relief through the transparent resin, thereby obtaining a wooden article having decorativeness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a resin-injected wood product, and more specifically, it uses old wood or wood with holes and injects and fills the resin into the holes of the wood to obtain the resin. The present invention relates to a method for manufacturing a resin-injected wood product that is integrated with perforated wood and can effectively utilize the wood.

[0002]

2. Description of the Related Art When a standing tree is felled,
About 40% is perforated wood with voids inside,
It may not be possible to obtain large profitable planks (timber) or timber. Therefore, when purchasing the standing tree, a large loss may occur. Therefore, it is desired to effectively utilize such wood. Also, the old trees used in the existing buildings are not reused and are discarded, and the means for reusing the old trees
A method is also desired.

As a method of utilizing this, the perforated wood and old wood are utilized as chips and materials for various processed wood products like thinned wood and the like. However, there is a limit to their utilization, and it cannot be said that they are fully utilized.

By the way, based on this viewpoint, wood (wood chips) is cut out, or lumber with holes is used.
There is known a structure in which an acrylic plate or the like having the same size as the cutout portion or the hole portion is fitted to form a wooden product such as a figurine or a toy. And, in the case of this configuration, there is an advantage that the wood can be effectively utilized.

[0005]

However, in the case of the above-mentioned structure, an acrylic plate or the like fitted to the cutout portion or the hole portion is not fitted to the space around the hole of the wood due to a change with time. There is a problem that it may occur and it may come off, or its appearance may deteriorate.

By the way, although the structure is different, when a flaw is found in a timber or a building material, a method of injecting / filling a synthetic resin into the portion and repairing / reinforcing with the resin is adopted. However, in the case of this method, in order to integrate the wood portion and the resin, the wood is forcibly dried, and the resin is forcibly impregnated in a reduced pressure state, so that the manufacturing process is troublesome. There's a problem.

In view of the above points, the present inventor has variously studied and used old wood or wood with holes, injecting and filling a resin into the holes of the wood, and opening the resin with holes. By integrating with wood, the wooden products such as figurines, toys, and building materials that can solve the above-mentioned "problem that a gap occurs between the hole and the hole of the wood and separate from it" I knew that I could offer.

However, in the case of this construction, when air is brought into contact with the injected synthetic resin in the manufacturing process, a silver eye phenomenon occurs, the periphery of the holes shines, the texture of the wood is reduced, and the air from the wood conduit is reduced. It turned out that there was a problem that it was not possible to prevent the entry of the.

The present invention was devised in response to the above-mentioned problems, and the purpose thereof is to use old wood or wood with holes, and inject and fill a resin into the holes of the wood, An object of the present invention is to provide a method for producing a resin-injected wood product that can prevent the ingress of air, integrate the resin with perforated wood, and effectively use the wood.

[0010]

The method for producing a resin-injected wood product of the present invention as a means for achieving the above object uses wood with holes, and the water content of the wood is 15%.
A drying step of drying to 20% or less, a resin applying step of applying a conduit blocking resin to the inner circumference of the hole of the dried silent wood, and an air blocking material arranging step of covering the end surface of the hole with an air blocking material. ,
A resin injecting step of injecting a transparent thermosetting resin into the hole and a configuration in which the injecting resin is cured and integrated with the wood are obtained.

Another method of manufacturing a resin-injected wood product of the present invention is the above-mentioned invention, wherein a thermosetting resin is used in the holes.
It is configured to be injected in a thickness of 5 to 20 mm, insert the ornament serving also as the anchor in the middle, and raise the ornament serving also as the anchor into the thermosetting resin injection hole.

[0012]

According to the method for producing a resin-injected wood product of the present invention, the wood is dried to a water content of 15 to 20% or less, the conduit blocking resin is inserted into the hole, and the end surface of the hole is air-blocked. Cover with material and inject and fill transparent thermosetting resin,
Air is prevented from entering the thermosetting resin, and the conduit blocking resin acts to obtain a wood product in which wood and the thermosetting resin are integrated. Therefore, the silver grain phenomenon does not occur around the holes and the thermosetting resin does not come off.

Further, in the structure in which the ornament / cumulative ornament is inserted, the transparent thermosetting resin raises the anchor / decorative ornamental material, and is embodied as a wooden product such as a decorative ornament or a toy. Act as you can.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are as follows.
1 shows an embodiment of the present invention, FIG. 1 is a process diagram for explaining a manufacturing process, and FIG. 2 is a perspective view.

The method of manufacturing the resin-injected wood product of this embodiment is as follows:
A method of manufacturing a wooden product as a figurine 1, which is roughly described, including a wood drying step, a resin applying step, an air blocking material arranging step, a resin injecting step, and a resin curing step. It comprises a method of producing a figurine made of the wooden product.

-Wood Drying Step-In this step, the wood 3 with holes 2 has a water content of 15 to
It is a step of drying to 20% or less. The drying is carried out by natural drying. Usually, in wood, the water content is 15% or less for sapwood (white thick) and 20% or less for core material (lean). However, if necessary, forced drying may be performed.

-Resin Application Step-This step is a step of applying the conduit blocking resin 4 to the inner circumference of the hole 2 of the wood dried in the previous step. Here, as the conduit blocking resin 4, a sealer material obtained by mixing 10% by weight of styrene monomer with 1% by weight of polyester, 1% by weight of a thickening agent and 1% by weight of curing agent is used. Further, the mixing ratio is different according to need depending on whether the wood 3 is a coniferous tree, a broad-leaved tree, or the amount of fat (and / or). Furthermore, the gelation curing time also differs. If the wood 3 is a conifer and has a high degree of fat, it is partially heated by baking sand, washed with styrene monomer, and then coated with the conduit blocking resin 4 (including spraying and other distribution). ).

-Air Blocking Material Arranging Step-This step is a step of covering the end surface portion 5 of the hole 2 of the wood with the air blocking sheet 6. By arranging the air blocking sheet 6, the entry of outside air is blocked. Here, as the sheet 6, a polyethylene sheet having a gas barrier property is used, and a weir 7 is provided on the end face portion 5 of the hole 2 so that when the resin 8 is injected in a later step, the resin 8 is hardened in volume shrinkage. I am trying to deal with it. An elastic packing is used as the weir 7.

-Resin Injection Step-This step is a step of injecting the transparent thermosetting resin 8 into the holes. Here, as the thermosetting resin 8, an unsaturated polyester resin is used as a main material, and if necessary, a styrene monomer, an accelerator 101, and a curing agent are mixed therein. Resin injection is usually 20 ℃ ± 5 ℃
Then, it is injected and cast at a thickness of 15 mm to 20 mm at a time, and is sequentially injected and filled before the resin is cured. In addition,
When the styrene monomer, the accelerator 101, and the curing agent are mixed, 30 to 40% by weight of the styrene monomer and 0.05% of the accelerator 101 are added to the unsaturated polyester resin.
The curing agent is 0.3%. When inserting a decoration or the like into the hole, inject the next resin in the resin injection process, that is, with the decoration placed on the lower resin layer. It is in a state. If necessary, the resin may be wholly colored or partially colored.

-Resin Curing Step- In this step, the resin 8 injected in the previous step is cured and cured,
It is a process of integrating with wood. Normally, curing is performed once (15 mm to 20 mm thick) at room temperature of 15 ° C.
~ 20 ° C, 40 hours, room temperature 20 ° C-25 ° C
In the case of about 20 to 12 hours, and when the room temperature is around 30 ° C., the resin is injected on the iron plate.

Then, after curing the resin 8, after rough finishing, the wood finishing surface is impregnated with urethane or polyurethane resin, water-polished and compound-finished to obtain a wooden product made of a figurine. it can.

In the case of the resin-injected wood product manufacturing method of this embodiment, the thermosetting resin to be injected into the holes is completely blocked from the air, and the two are integrated by the conduit blocking resin. Since the air does not touch the thermosetting resin 8, the silver grain phenomenon does not occur in the inner periphery of the hole 2 and the thermosetting resin 8 does not separate from the hole 2.

It should be noted that the present invention is not limited to the above-described embodiments, but includes configurations that can be modified and implemented within the scope of the present invention. Incidentally, in the above-mentioned embodiment, the method of manufacturing a figurine as a wooden product has been described, but it goes without saying that it can be embodied as a name plate, a toy, a construction material, and other wooden products.

[0024]

As is apparent from the above description, according to the method for producing a resin-injected wood product of the present invention, a resin for blocking a conduit is provided in the hole in a state where the water content of wood is 15 to 20% or less. Since the end surface of the hole is covered with an air blocking material and a transparent thermosetting resin is injected, the entry of air into the thermosetting resin is blocked, and the conduit blocking resin is blocked. Thus, the wood and the thermosetting resin can be integrated with each other, and there is an effect that a silver grain phenomenon does not occur around the holes and the thermosetting resin does not separate.

In addition, in the method of manufacturing a resin-injected wood product of the present invention, in the case of a structure in which a decoration that also serves as an anchor is inserted,
The transparent thermosetting resin brings up the effect that the ornament also serving as the anchor is floated up, and wooden products such as decorative ornaments and toys can be embodied.

Therefore, according to the present invention, old wood or wood having holes is used, and the resin can be injected and filled in the holes to prevent the ingress of air. It is possible to provide a method for manufacturing a resin-injected wood product that can effectively utilize the above.

[Brief description of drawings]

FIG. 1 is a process drawing for explaining a manufacturing process of an embodiment of the present invention.

FIG. 2 is a perspective view of an ornament manufactured using an embodiment of the present invention.

[Explanation of symbols]

1 ... Figurine (wooden product), 2 ... Hole, 3 ... Wood,
4 ... Resin for blocking conduits, 5 ... End surface of wood hole,
6 ... Air blocking sheet, 7 ... Dam, 8 ... Thermosetting resin

Claims (2)

[Claims] 1. A drying step of using wood with holes to dry the water content of the wood to 15 to 20% or less, and a resin coating for applying a conduit blocking resin to the inner circumference of the hole of the dry silent wood. A step of arranging an air barrier material covering the end surface of the hole with an air barrier material, a resin injection step of injecting a transparent thermosetting resin into the hole, and a step of curing the injected resin and the wood. A method for producing a resin-injected wood product, characterized by being obtained by being integrated. 2. A thermosetting resin in the hole is 15 to 20 mm.
The method for producing a resin-injected wood product according to claim 1, wherein the resin-injected wood product is injected and laminated by thickness, and the ornament-cum-decoration is inserted in the middle of the lamination to float the anchor-decoration ornament in the thermosetting resin injection hole.