JP2004121207A - Termite repellant sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termite repellant sheet, without using a chemical, having no fear of health hazard to a living people or construction workers of a construction and soil pollution, etc., and easy for handling. <P>SOLUTION: This termite repellant sheet 1 is constituted by impregnating a hiba abortivitae oil 3 containing hinokithiol component in a sheet material 2 having moisture permeability, so as to be used by laying it on the surface of soil surrounding a base concrete 5 of the construction. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a termite-control sheet effective for termite control on buildings and a preferred method of using the same.
[0002]
[Prior art]
As a preventive measure against termite damage in buildings, a chemical agent having insecticidal, insect repellent or repellent action against termites is sprayed under the floor of the building, or a similar chemical agent is impregnated in a sheet material such as a nonwoven fabric, and the sheet material is Conventionally, a method of sticking to the lower surface of a floor panel has been adopted (see Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-510140 A
[Problems to be solved by the invention]
However, various problems have been pointed out by the method of spraying a chemical agent, such as soil contamination due to accumulation of the agent, health damage to residents due to the volatilized agent, and health damage to workers due to scattering during application. On the other hand, in the method in which the sheet material impregnated with the chemical is stuck to the floor panel, termites crawling up the basic concrete from the soil under the floor may evade the wooden part of the pillar or the like avoiding the floor. In addition, it is well known that termites generally prefer to eat wet wood, but in addition to wood, cloth, paper, concrete, soil, rubber, and certain types of plastic materials are also harmful or stinking. Has been known to be an extremely omnivorous pest. For this reason, since the basic concrete may be damaged by termites, it is difficult to say that the conventional method is a measure capable of effectively preventing termite damage.
[0005]
Accordingly, the present invention provides a termite-control sheet that can effectively prevent termites from climbing into a building without using a chemical agent, and a method of using the same.
[0006]
[Means for Solving the Problems]
That is, the termite control sheet of the present invention is characterized by comprising a sheet material having moisture permeability and hiba oil containing hinokitiol impregnated in the sheet material.
[0007]
Here, Hiba oil is contained in an extract of wood represented by Aomori Hiba and Taiwan cypress, contains compounds such as hinokitiol, and has a high repellent action against pests such as termites and mites, and various fungi such as molds. It has been known that it is a useful natural substance that exerts a high effect on, for example, the suppression of the reproduction of pineapple. Therefore, if the termite sheet is made of a sheet material impregnated with Hiba oil, it contains Hiba oil, which is a natural component. It can dispel concerns such as damage. In addition, since the hiba oil is in a state of being impregnated in the sheet material, the operation of directly spraying the soil on the soil is not required, and the adverse effects due to the scattering of the chemicals such as liquids and powders can be eliminated. In addition, in addition to hinokitiol (β-tsuyaprisin), hiba oil also contains components such as β-drabulin which have a repellent effect on termites, and the synergistic effect of these natural components enhances the termite repellent effect. As the hiba oil, an undiluted solution of an extract of Aomori hiba or the like may be used, or a diluent of the undiluted solution may be used.
[0008]
In such a termite sheet, suitable sheet materials include paper and nonwoven fabric.
[0009]
In order to exhibit an effective termite repellent effect, it is preferable that hiba oil contains 10 to 50% of a hinokitiol component. Note that the content ratio of the hinokitiol component can be appropriately changed depending on the cost and the like as long as the termite repellent effect is within an effective range. When 3 to 10 g of hiba oil is impregnated per 1 kg of sheet material, the termite repellent effect can be sufficiently exhibited.
[0010]
As a useful use method of the termite sheet as described above, it is desirable to lay it on the ground around a foundation concrete part in a building for use. By doing so, the termites can avoid the termite-proof sheet, so that the termites can be suitably prevented from climbing from the soil to the base concrete. In particular, according to the method recommended by the Japan Wood Preservation Association, a method of spraying a termiticide with a width of 20 cm from the foundation concrete, if an ant-control sheet is laid around the foundation concrete at the width dimension, Termite damage can be suitably prevented.
[0011]
In addition, termites can be prevented from climbing on the wood on the base concrete by attaching or winding the termite sheet on the surface of the wood part having a height of about 1 m from the base concrete part in the building. Therefore, it is possible to prevent termites from damaging wood, which is a structural material of a building. In addition, this termite sheet can also be used between building walls, flooring or ceiling materials and surface materials applied to those surfaces to reduce termite damage at each application site. Can be prevented.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0013]
The termite sheet 1 of this embodiment is formed by impregnating a sheet material 2 made of paper with hiba oil 3. First, the sheet material 2 is made of a moisture-permeable paper material having a thickness of, for example, 1 mm or less to about 5 mm, and is wound in a roll shape as shown in FIG. It is formed. It is desirable that the width of the sheet material 2 is set to about 20 cm. However, if the width is larger than that, the sheet material 2 is cut into a required size, and if the width is smaller than that, a plurality of sheet materials 2 may be used side by side. . On the other hand, Hiba oil 3 is obtained as a natural extracted oil of plants of the family Cypress, such as Aomori Hiba, Taiwan Hinoki, and Kiso Hinoki. In the present embodiment, for example, oily properties obtained by steam extraction of Aomori Hiba wood chips, branches and leaves are used. Uses acidic oil among the ingredients. Hiba oil 3 thus obtained contains tropolone, a 7-membered ring compound unique to Cypress family, and among them, hinokitiol (C ₁₀₎ which is a component having a high repellent effect on termites in particular H ₁₂ O ₂₎ and quality content is about 2% and its a analogue β- dolabrin _{(C 10 H 10 O 2)} utilizes those substantially stable constant. Then, the hiba oil 3 is poured into a predetermined container 4, and the sheet material 2 is immersed in the hiba oil 3 in the container 4. Although the hiba oil 3 usually contains 10 to 50% hinokitiol, the hiba oil 3 is appropriately diluted so that the hiba oil 3 impregnated in the sheet material 2 contains about 5% hinokitiol. Can be put in the container 4. Thereafter, the termite control sheet 1 of the present embodiment in which the sheet material 2 is impregnated with the hiba oil 3 is obtained by drying the hiba oil 3 to such an extent that the hiba oil 3 does not volatilize. At this time, it is desirable that the sheet material 1 contains 3 to 10 g per 1 kg, particularly preferably about 5 g of hiba oil 3 in consideration of termite repellent action and cost performance.
[0014]
The termite-control sheet 1 thus obtained can achieve a high termite-controlling effect by being used as follows.
[0015]
First, as shown in FIG. 2 and FIG. 3, in order to prevent termites from climbing from the ground to the foundation concrete 5 formed from the soil S rising from the ground, as shown in FIGS. In accordance with the termiticide spraying method recommended by A., termite-control sheet 1 is closely laid along foundation concrete 5 and laid on the surface of soil S with a width d1 of about 20 cm. In addition, in the area surrounded by the foundation concrete 5, the termite control sheet 1 may be laid on the entire surface of the soil S exposed in the surrounded area.
[0016]
As shown in FIG. 3, in order to directly protect the wood 6 such as pillars and rungs placed and constructed on the foundation concrete 5 from termites, the termite sheet 1 is wound around the surface of the wood 6. Good to keep. It is sufficient to wind the termite sheet 1 around the wood 6 at a height d2 in the range of about 1 m from the base concrete 5 to prevent termites from climbing up.
[0017]
In addition, although not shown, the termite sheet 1 is sandwiched between the surfaces of the building walls, flooring materials, ceiling materials, and the like to prevent termite damage at the site. it can. It is also useful to lay the termite sheet 1 between the tatami mat and the tatami mat.
[0018]
Note that the present invention is not limited to the above embodiment. For example, a nonwoven fabric or the like can be used as the sheet material as a material having moisture permeability other than paper. In addition, the specific configuration of each part and the specific method of use are not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0019]
【The invention's effect】
As described above, according to the termite control sheet of the present invention, since the air-permeable sheet material is impregnated with a natural hinokitiol-containing hiba oil instead of a chemical agent, the resident of the building used is In addition to preventing health damage to construction and construction workers, soil pollution can also be prevented. In particular, laying the termite sheet around the foundation concrete, wrapping it around wood, or sandwiching it between the wall and the like and its surface material, including hinokitiol in hiba oil volatilized from the termite sheet The termite repellent action of the active ingredient can effectively prevent termite damage to buildings.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a termite sheet according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an example of use of the termite sheet of the embodiment.
FIG. 3 is an explanatory view of the same.
[Explanation of symbols]
1: Termite control sheet 2: Sheet material 3: Hiba oil 5: Basic concrete 6: Wood

Claims (4)

An ant-proof sheet comprising a sheet material having moisture permeability and hiba oil containing a hinokitiol component impregnated in the sheet material. The termite control sheet according to claim 1, wherein the sheet material is paper or nonwoven fabric. The termite control sheet according to claim 1 or 2, wherein the hiba oil contains 10% to 50% of a hinokitiol component. 4. The termite-control sheet according to claim 1, wherein 3 to 10 g of hiba oil is impregnated per 1 kg of the sheet material.

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