JP2001071305A - Fumigated wood material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a wood having outstanding termite-proof performance, corrosion inhibitive performance, a dignified and serene color tone, and further superb water repellency as the characteristics of wood, by first fumigating a sawn wood product and keeping a fumigated part intact on at least one of the faces of the product. SOLUTION: A starting material 9 of a deal with a square section or a square bar is set in a wood treatment chamber 1 and smoke (wood gas) is generated by a combustion furnace to get a fumigating treatment process 10 underway. The sawn wood product 11 already fumigated has the surface fabricated by a fabricator such as a molder or a planer and has the back kept as it is fumigated. As the sawn wood product 11 is impregnated with carbon, resin, aldehydes, phenols or the like and has either of these materials sticking to the surfaces through fumigation, the sawn wood product 11 shows especially outstanding termite protective performance and corrosion inhibitive performance. In addition, the sawn wood product 11 shows superb water repellency. The sawn wood product 11 is handled as a finished product 14 in the described state or is handled as a finished product having a high level of termite-proof performance and corrosion inhibitive performance as a whole by coating or applying termite-proof and corrosion inhibitive treatments to the fabricated face in a surface treatment process 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood material obtained by smoking wood.

[0002]

2. Description of the Related Art Techniques for smoking wood for the purpose of controlling insects, fungi, and preservation are disclosed in, for example, JP-A-8-108.
Japanese Patent Publication No. 408 discloses a technique in which the wall of wood is broken by smoking to promote drying and facilitate the injection of a preservative or an insect repellent.

According to this prior art, the pores existing in the cells of the wood are completely or partially destroyed so that gaps are formed in the walls of the pores, and the wood is formed in a subsequent wood drying step. Intracellular water easily escapes and drying proceeds.

[0004] Since the water in the cells constituting the wood is removed promptly and equally at the core and sap, the wood to be dried may be cracked, bent, twisted or warped. It is difficult to produce and high quality wood can be obtained.

[0005] Further, since the pits existing in the cells of the wood are completely or partially destroyed and a gap is formed in the pit wall,
Excellent effects such as preservatives and insect repellents can be easily injected.

[0006]

However, in the case of this prior art, it is necessary to treat wood to be treated at a temperature of about 100 ° C., which results in a large fuel consumption and an apparatus for supplying fuel. Need. Further, in this prior art, no consideration is given to the design of the obtained smoked wood.

An object of the present invention is to provide a smoke-treated wood material which is excellent in termite and preservative performance, has a calm color tone with a great weight, and is also excellent in water repellency.

[0008]

Means for Solving the Problems According to the first aspect of the present invention, there is provided a smoke-treated wood material obtained by smoking wood lumber, wherein at least one surface of the wood material is smoked. The point is to have a part that remains smoke-treated.

According to a second aspect of the present invention, there is provided a smoke-treated wood material obtained by smoking a wood lumber product, wherein at least one surface of the wood material has a smoke-treated portion.
This is a smoked wood material obtained by forming a painted surface, an ant-proof, and a preservative-treated surface on a processed surface of a wood material after smoke treatment with a planer or the like.

According to a third aspect of the present invention, there is provided a smoke-treated wooden material obtained by smoking a material obtained by processing a wooden lumber product with a planer or the like. It is characterized by having.

According to a fourth aspect of the present invention, there is provided a smoke-treated wooden material obtained by smoking a material obtained by processing a wooden lumber product with a planer or the like. And a smoke-treated wood material obtained by forming a processed surface with a sander or the like on at least one surface of the wood material after the smoke treatment.

According to a fifth aspect of the present invention, there is provided a smoke-treated wooden material obtained by smoking a material obtained by processing a wood-based lumber product with a planer or the like, and at least one side of the smoke-treated wooden material. In addition, the surface of the woody material after smoke treatment is treated with a sander or the like to have a painted surface or an ant-proof or antiseptic surface.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on preferred embodiments.

[0014]

Since the present invention has the above constitution, it has excellent termite and antiseptic performance, has a brown or black-brown weighty color tone, and has excellent water repellency. Material can be provided. In particular, the surface that has not been smoked is impregnated and adhered with carbon, resin, aldehydes, phenols, etc.
Excellent antiseptic performance.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The means for obtaining the smoke-treated wood material of the present invention will be described in detail in accordance with a preferred embodiment.

FIG. 1 schematically shows an example of an apparatus for obtaining a smoke-treated wood material of the present invention. In FIG. 1, reference numeral 1 denotes a wood processing room, which has a ceiling and wall surfaces lined with a refractory in which special ceramics generating far-infrared rays are mixed. In this embodiment, the special ceramic briquettes that generate the far-infrared rays are scattered on the floor of the wood processing room 1.

The temperature of the inner core of the wood can be increased in a short time due to the presence of the special ceramics that generates far infrared rays. This makes it possible to reduce the temperature difference between the outer peripheral portion (sapwood) and the core (core) in the cross section of the wood, and to perform the smoke heat treatment while preventing the occurrence of cracks. The destruction of the pit wall is promoted to the part.

In the wood processing room 1, a bogie 5 loaded with lumber products 9 laminated by interposing a pier or a material (processed wood) 9 obtained by subjecting the lumber products to processing by a moulder or planer hooking is mounted on rails. After being moved and charged, and closing the door, sawmill 9
And the material (processed wood) 9 are smoked.

The wood processing room 1 is provided with an indoor atmosphere temperature detecting end and a humidity detecting end. Further, a detection end for detecting the temperature inside the wood is buried inside the wood.

Further, an exhaust hole faces the lower side wall surface of the wood processing chamber 1, and the atmosphere in the wood processing chamber 1 is discharged to the outside through a chimney 6 by a natural draft or an exhaust blower.

The wood processing room 1 is provided with spray nozzles for spraying water on the ceiling and the wall surface. In order to prevent cracking of the wood during the smoking process, the temperature inside the wood, the ambient temperature inside the wood processing room 1, Warm water is sprayed on the wood to be treated based on the detection result of the humidity.

Reference numeral 2 denotes a combustion furnace which burns, for example, scraps 8 and wood chips 8 derived from a sawmill under an air-fuel ratio control.
This produces smoke (wood gas). In this embodiment, the fuel 8 is limited to natural wood. This is to prevent chemically harmful components from penetrating into the wood to be treated.

Reference numeral 3 denotes a heat storage chamber, which stores heat generated in the combustion chamber 2 and sends smoke 7 containing water vapor to the wood processing chamber 1 through a flue 4. In this embodiment, the smoke (wood gas) 7
Is sent from the regenerator 3 to the wood processing chamber 1 via a duct, and is discharged from the duct at the bottom.

Further, in the smoke-treating apparatus of this embodiment, a temperature / humidity control panel (not shown) is provided. The temperature / humidity control panel controls the wood internal temperature, the wood processing room atmosphere temperature, the hot water injection timing, and the injection amount according to the processing program.

Next, one embodiment of the production process for obtaining the smoke-treated wood material of the present invention will be described. FIG. 2 shows the process. In FIG. 2, 9 is a starting material, 10 is a smoke treatment step, 11 is a smoke treatment material, 12 is a processed surface after the smoke treatment, 13 is a surface treatment step, and 14 is a product.

EXAMPLE 1 The starting material 9 is a lumber of cedar, pine or other conifer or keyaki or other hardwood. In this embodiment, the starting material 9 is a plate or a prism having a rectangular cross section.

The starting materials 9 are mounted on the carriage 5 in a state of being stacked in, for example, four to six stages through a crosspiece, and are moved on rails and loaded into the wood processing chamber 1. After that, the door of the wood processing room 1 is closed.

Thereafter, in the combustion furnace 2, the scraps, wood chips and the like are incompletely burned as fuel 8 to generate smoke (wood gas) 7. The combustion control in the combustion furnace 2 is performed by automatically controlling the air-fuel ratio based on the detection results of the atmosphere temperature, the humidity and the internal temperature of the wood in the wood processing chamber 1. In this way, the smoke treatment process 10 proceeds.

The internal temperature of the wood is detected by drilling the wood to be treated (starting material) with a drill and embedding a temperature measuring point of a thermocouple.

In this embodiment, the smoke treatment is carried out for about 2 to 3 days by controlling the temperature inside the wood to a temperature range of 70 ° C. to 80 ° C. Thereafter, curing is performed in the wood processing room 1 for about 3 to 4 days.

When the difference between the temperature inside the wood and the temperature of the outside air in the wood processing chamber becomes 10 ° C. or less, preferably 8 ° C. or less,
The trolley 5 is pulled out of the wood processing chamber 1 and the smoked lumber or the lumber, which is obtained by processing the lumber with a planar or the like, that is, the smoked material 11 is taken out.

In the present embodiment, the surface of the taken-out smoked lumber product or the wood material 11 obtained by subjecting the lumber product to processing by a planer or the like is processed by a processing machine such as a moulder or a planer. . The back surface is left in the state of the smoking process. As-smoke treatment means that no processing is performed after the smoke treatment, and the back surface of the as-smoke treatment is carbon, resin, aldehydes,
Since phenols and the like are impregnated and adhered, they are particularly excellent in termite and antiseptic properties. It is also excellent in water repellency.

In this state, the product 14 can be used. However, since the surface processed by a processing machine such as a moulder or a planer has a lower termite-preventive property and antiseptic property than the surface without smoke treatment, the surface 14 In the treatment step 13, the surface that has been processed after the smoke treatment is painted, termite-prevented, or preserved to obtain a wood product having a high level of termite-preventive performance and preservative performance as a whole.

Embodiment 2 Next, another embodiment of the manufacturing process for obtaining the smoke-treated wood material of the present invention will be described. FIG. 3 illustrates this process. The starting material 109 is a lumber product similar to that in the embodiment shown in FIG.

Next, on the front and back surfaces of the starting material 109,
For example, a planarized processing surface 112 is formed.

The material 109 on which the processing surface 112 is formed
Are mounted on the trolley 5 in a state of being stacked in, for example, 4 to 6 tiers via a pier, and moved on rails to thereby provide the wood processing chamber 1.
Charge inside. After that, the door of the wood processing room 1 is closed.

Thereafter, in the same smoking treatment step 100 as in the above-described embodiment, the smoked wood material 111 is used.
Get.

Processing surface 11 taken out and subjected to smoke treatment
The wood material with 2 can be used as it is,
In this embodiment, only the surface to be used is externally finished with a surface finish 115 by, for example, a sander.

In this state, the product 114 can be used. However, the surface finished by the surface finish 115 after the smoking process using a sander or the like has a reduced termite-preventive property and antiseptic property as compared with the surface as it is after the smoking process. Therefore, in the surface treatment step 113, the surface that has been processed after the smoke treatment can be painted or subjected to termite and preservative treatment to provide a wood product having a high level of termite and preservative performance as a whole. .

In the above description, a lumber product having a rectangular cross section such as a plate or a prism or a wooden material obtained by processing a lumber product is to be subjected to smoke treatment. However, the present invention is not limited to this. Of course, a lumber product in which an arc-shaped portion from which the skin is peeled off is left or a material obtained by processing the lumber product can be subjected to the smoke treatment.

Also, the cross-sectional shape of the wood to be smoked can be variously selected, such as a square, a circle, and a polygon.

The smoked wood material and the untreated material obtained by the above manufacturing process and the material treated with an insect repellent, an antiseptic, etc. are put into a container with soil (red soil) up to a height of about 10 cm and 200 termites. They were buried in soil that had survived in soil of ~ 300 animals and subjected to a 7-day corrosion test. Table 1 shows the results.

In Table 1, the termite number is the total number of termites present on the test wood and termites present on the soil surface when the test wood was taken out of the soil. The number of erosion marks is the number of erosion marks in the shape of a groove or a circular recess.

[0044]

[Table 1]

As is clear from Table 1, the wood material of the present invention obtained by smoking wood lumber or processed lumber processed by a planer or the like is excellent in termite resistance. In particular, the surface as smoked is excellent in termite control.

[0046]

The smoke-treated wood material of the present invention is a wood material obtained by smoking wood sawn timber or a material obtained by subjecting a sawn timber to a planer hook. Excellent in nature. In particular, the part (surface) that has been smoked is termite-resistant
Excellent antiseptic properties.

The smoke-treated wood material of the present invention is brown or black-brown, has a heavy, calm color tone, and is excellent in design. Furthermore, it has excellent water repellency.

Further, the combination of the smoke component and the wood lignin makes the plane-finished surface glossy, and it is possible to obtain a beautifully designed plate or pillar having a beautiful surface.

Furthermore, the smoke-treated wood material of the present invention is hard to be apt to be harmed and corrode due to the smoke component penetrating into the wood.

Further, since the wall of the wall is sufficiently broken down to the core, it is excellent in permeability and can be easily subjected to a chemical treatment for termite prevention, preservation, flame retardancy and the like.

The smoke-treated woody material according to the second aspect is subjected to painting, termite-proofing and preservative treatment on the processed surface after the smoke-treating, so that it exhibits a high level of termite-proofing and antiseptic properties as a whole. I do.

The smoke-treated wood material according to the third aspect of the present invention is intended to be a smoke-treated wood material which has been processed by a planarizer or the like, so that the range in which the smoke-treated wood material can be used as it is is expanded and excellent. Exhibits termite and antiseptic properties.

The smoke-treated woody material according to the fourth aspect has an improved design since the surface to be used is subjected to processing with a sander or the like after the smoke treatment.

The smoke-treated wood material according to the fifth aspect is excellent in design because it is subjected to painting, ant-proofing and antiseptic treatment on the surface of the used surface which has been processed with a sander or the like after the smoking process. Despite being a wood material, it exhibits a high level of termite and antiseptic properties as a whole.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing an example of a smoke-treating apparatus when carrying out the present invention.

FIG. 2 is a block diagram illustrating a process for obtaining a smoked wood material of the present invention.

FIG. 3 is a block diagram illustrating another process for obtaining the smoked wood material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wood processing room 2 Combustion furnace 3 Thermal storage furnace 4 Flue 5 Bogie 6 Chimney 7 Smoke containing water vapor 8 Fuel (cut wood, wood chips, etc.) 9 Lumber 10 Smoke treatment process 11 Smoke treatment material 12 Processing surface 13 Surface Processing process 14 Products 109 Materials processed lumber products 100 Smoke treatment process 111 Smoke treatment material 112 Processed surface 113 Surface treatment process 114 Products 115 Surface finishing by sander etc.

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2B230 AA01 AA03 AA04 AA05 AA16 BA01 BA17 EA11 EA21 EB03 EB05 EB07 EB15 EB21 EB26 EB34 EC01 EC13 EC16 EC24 3L113 AA01 AB07 AC03 AC10 AC43 AC48 AC53 AC54 AC63 AC75 AC72 AC72 CB02 CB06 CB24 CB34 DA24 DA30

Claims (5)

[Claims] 1. A smoked wood material obtained by smoking a wood lumber product, wherein the smoked wood material has at least one surface of which remains as smoked. 2. A smoked wood material obtained by smoking wood lumber products, wherein at least one surface of the wood material has a smoke-treated portion, and the smoked wood material is planarized. Smoke-treated wood material with a painted surface or an ant-prevention or antiseptic treatment surface formed on the processed surface. 3. A smoke-treated wood material obtained by smoking a material obtained by subjecting a wood lumber product to processing with a planer or the like, wherein at least one surface of the smoke-treated wood material has a portion that remains unsmoked. Processing wood material. 4. A smoke-treated wooden material obtained by subjecting a wooden lumber product to a material that has been processed by a planer or the like, wherein at least one surface has a portion that remains as smoke-treated, A smoke-treated wood material obtained by forming a processed surface with a sander or the like on at least one surface of the wood material after the treatment. 5. A smoke-treated wooden material obtained by smoking a material obtained by subjecting a wood-like lumber product to processing with a planar material or the like, wherein at least one surface has a smoke-treated portion, A smoke-treated wood material in which a painted surface or an ant-proof or antiseptic surface is formed on a processed surface of a processed wood material by a sander or the like.