JP3522672B2 - Moistureproof sheet and method of using moistureproof sheet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moisture-proof sheet mainly used in construction of buildings and a method of using the sheet.

[0002]

2. Description of the Related Art Conventionally, when constructing a foundation for a building, in order to prevent moisture from coming into the building from rising into the building and causing corrosion, a vinyl or other material is used between the foundation and the soil. A moisture-proof sheet that does not have water permeability may be laid.

[0003]

By the way, termite damage in a building is usually caused by a termite coming up from the ground and eating away the foundation and the main body of the building such as columns and floors built on it. There is. However, if the moisture-proof sheet is simply laid under the foundation, the moisture-proof sheet will also be eaten by the termites, and it will not be possible to prevent termite damage. Some moisture resistance will also be compromised.

In view of the above problems, the present invention mainly provides a moisture-proof sheet which can effectively protect a building from termite damage and a method of using the sheet.

[0005]

That is, the moisture-proof sheet of the present invention contains a water-impermeable sheet body and a liquid containing hinokitiol, and is capable of releasing the liquid by disintegrating at least with time. it comprises a preparative, and the microcapsules in the seat body, to contain hinokitiol such as Aomori hiba and Taiwan Hinoki
It is characterized by being mixed with the bark powder of the tree .

Hinokitiol has been known to have a repellent action against termites and the like. Therefore,
With the moisture-proof sheet having such a configuration, it is possible to effectively prevent termite damage by the action of hinokitiol in the liquid that is released when the microcapsules are disintegrated. Therefore, the moistureproof sheet is not damaged by being eaten by termites, and the original moistureproof function is effectively maintained. In addition, the disintegration time of the microcapsules is different for each individual microcapsule, and by allowing a large number of such microcapsules to exist in the moisture-proof sheet, hinokitiol is continuously released from the disintegrated microcapsules in the long run. As a result, the effects described above can be obtained over a long period of time. In addition, hinokitiol may also have an effect of removing causative substances of sick house syndrome such as formaldehyde released from new building materials and synthetic resin adhesives, and having an antibacterial / bactericidal effect against mold and bacteria. Since it has been known, hinokitiol in the liquid released by the collapse of microcapsules can be expected to suppress the occurrence of sick house syndrome and the growth of mold and bacteria.

Although the microcapsules alone can be expected to have some long-term effect,
Along with the microcapsules, such as Aomori Hiba and Taiwan Hinoki
Since bark powder of hinokitiol-containing tree is mixed, the above effect can be effectively maintained even after almost all the microcapsules have been disintegrated.

[0008] In order to maintain the effect of the microcapsules alone as long as possible, the microcapsules are provided in a porous capsule body composed of non-disintegrating particles and disintegrating particles, and in the capsule body. It is preferable that the liquid is composed of a liquid containing hinokitiol incorporated therein, and that the liquid is released from the inside of the capsule body at least by the disintegration of the disintegrating particles by aging. That is, with such a configuration,
The non-disintegrating particles block the pores formed after the disintegrating particles are collapsed as small as possible, so that the liquid inside is not released all at once and the sustained release is achieved, so the effect lasts for a relatively long period of time. It will be. Particularly preferred microphone
Non-disintegrating particles are composed of ceramics
It is composed of sponge particles, and the disintegratable particles are plant-based
Some of them are made of pak quality.

Other than the moisture-proof sheet of the present invention,
Water-permeable sheet body and liquid containing hinokitiol
The above liquid is released by incorporating a
And a microcapsule that can be taken out,
A capsule is composed of non-disintegrating particles and disintegrating particles.
Porous capsule body and built-in inside the capsule body
It is composed of a liquid containing hinokitiol and changes over time.
As a result of the collapsible particles being disintegrated by
The seat body is configured to be released from inside the
Examples include those containing the above-mentioned microcapsules.
Be done.

As an effective method of using the moisture-proof sheet as described above, there is a method of laying the moisture-proof sheet between the foundation of the building and the sekiseki layer disposed thereunder during the construction of the building. By doing so, it is possible to effectively prevent the invasion of termites from the ground and the damage caused by the multiplication of termites around the foundation.

Furthermore, in order to prevent termite damage more effectively by taking measures against termites not only on the moisture-proof sheet but also on the soil around the foundation, the soil around the foundation of the building or the soil below the quarry stone layer is used. In addition, it is effective to mix or spray at least one of the microcapsules, the liquid containing hinokitiol, and the wood powder containing hinokitiol.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

This embodiment, which is schematically shown in FIG. 1, is a moisture-proof sheet 1 laid between a foundation 4 of a building and a cobblestone layer 5 which is preliminarily arranged and constructed below the foundation 4. In these constructions, first, in the soil 6, a layer 5 composed of a large number of rubble stones 51 having a size of about a dozen cm is formed, and a moisture-proof sheet 1 is laid on the crushed stone layer 5, and the moisture-proof sheet 1 is further formed. A foundation 4 made of concrete is formed by using a frame or the like on the top. Reinforcing bars 41 are embedded in the concrete forming the foundation 4 to maintain the strength.

The moisture-proof sheet 1 will be described in detail. As shown schematically in FIG.
A sheet body 11 made of a reinforced vinyl material or the like having a thickness of about 0.3 mm is mixed with a large number of microcapsules 2 and bark powder 3 of Aomori Hiba or Taiwan cypress. These microcapsules 2 and bark powder 3 are premixed in the reinforced vinyl as a raw material of the sheet body 11 in a kneaded state when the moisture-proof sheet 1 is molded, and are present in the sheet body 11 almost uniformly. . In particular, the content of the microcapsules 2 is about 1 to 3 with respect to the moisture-proof sheet 1 which is the final product.
It is set to be%. Even if the content rate is higher than this,
This is because the effects obtained are the same.

As schematically shown in FIG. 4, the microcapsule 2 is composed of a porous capsule body 21 and a liquid 22 containing hinokitiol held inside the capsule body 21. The capsule body 21 is composed of a plurality of non-disintegrating particles and disintegrating particles, and is about 2 μm.
The non-disintegrating particles are made of ceramic particles 21a, and the disintegrating particles are made of vegetable protein particles 21b such as soybean lecithin. Among them, the liquid 22 inside is discharged from the pores formed by the vegetable protein particles 21b being temporally collapsed due to the temperature change or the action of light. However, the liquid 22 contains hinokitiol extracted from Aomori Hiba and Taiwan Hinoki. That is, a liquid (oil-soluble component and water-soluble component) is obtained by applying high-temperature and high-pressure steam to finely crushed pieces of Aomori Hiba or Taiwan Hinoki cypress, bark, branches and leaves. Since the oil-soluble component of this liquid contains a large amount of hinokitiol, this oil-soluble component is used as the liquid 22, but a water-soluble component can also be used. The microcapsule 2 having such a configuration is
Several tens to several hundreds of microcapsules 2 are present in the sheet body 11 as a lump in a state of attracting each other.

The bark powder 3 is a product of Aomori Hiba and Taiwan Hinoki used to collect hinokitiol.
Particularly, the bark portion is finely crushed. This is because the bark contains a relatively large amount of hinokitiol compared to other sites.

The moisture-proof sheet 1 having such a structure is constructed as described at the beginning, but in this embodiment, the soil 6 is also treated in the following manner. That is, as shown in FIG. 1, the spray liquid A having the following configuration is applied to the soil 6 around the foundation 4 from the sprayer 7 and the soil 6 before the stone layer 5 is applied.
Is mixed with soil 6. This spray liquid A is, as schematically shown in FIG. 3, a microcapsule 2 equivalent to that mixed in a moisture-proof sheet 1, Aomori Hiba or Taiwan cypress bark powder 3, and a liquid containing hinokitiol in water or the like. It is a mixture. Since the microcapsules 2 and bark powder 3 are extremely small, they are exaggerated in FIG. The liquid containing hinokitiol is the same as the liquid 22 contained in the capsule body 21, and is not shown because it is dissolved or dispersed in the spray liquid A.

As described above, according to the present embodiment, the moisture-proof sheet 1 laid between the foundation 4 of the building and the cobblestone layer 5 disposed below the foundation 4 is provided with a micro-containing hinokitiol having an anti-termite action. Since the capsules 2 are mixed, the termites that rise up from the soil 6 and try to eat the foundation 4 and the pillars and floors erected on the foundation 4 by the hinokitiol in the liquid 22 that is released when the microcapsules 1 collapse. It is possible to effectively prevent the damage caused by. Further, since the moisture-proof sheet 1 itself is not damaged by being eaten by termites, the original moisture-proof function can be effectively exerted.

In particular, this microcapsule 2 has a structure in which a liquid 22 containing hinokitiol is contained in a capsule body 21 composed of ceramic particles 21a which are non-disintegrating particles and plant protein particles 21b which are disintegrating particles. When the vegetable protein particles 21b start to disintegrate, the liquid 22 is gradually released from the inside of the capsule body 21, and hinokitiol is volatilized from the liquid 22, so that a termite-preventing effect is exerted over a medium to long term. Since the pores formed by the collapse of the vegetable protein particles 21b are blocked by the ceramic particles 21a as small as possible, the individual microcapsules 2
, It is possible to release hinokitiol over a relatively long period of time. However, depending on the microcapsule 2, there are various types of microcapsules that disintegrate from the initial stage to those that disintegrate significantly later. The effect will be continuously exerted. Even after almost all the microcapsules have been disintegrated and their effects have diminished, hinokitiol continues to be released, so that a termite-preventing effect can be obtained for a longer period of time.

Further, the moisture-proof sheet 1 is mixed with the microcapsules 2 and bark powder 3 of Aomori Hiba or Taiwan Hinoki, which contains a large amount of hinokitiol. Although hinokitiol is released from the bark powder 3 in small amounts, it is inferior in immediate effect, but even after almost all the microcapsules 2 are disintegrated and the effect is weakened, the hinokitiol continues to be released from the bark powder 3. Further, it is possible to obtain a termite-preventing effect for a long period of time.

Further, in the present embodiment, in construction of a building, not only the moisture-proof sheet 1 is subjected to termite-proof measures, but also the soil 6 before construction of the stone layer 5 and the soil 6 around the foundation are moisture-proof sheets. A spray liquid A containing the same microcapsules 2 and bark powder 3 as those mixed in 1 and a liquid containing hinokitiol like the liquid 22 in the microcapsules 2 is sprayed. Therefore, in the short term, spray liquid A
The hinokitiol is volatilized from the hinokitiol-containing liquid therein, the hinokitiol in the liquid 22 released from the microcapsules 2 is volatilized in the medium to long term, and the hinokitiol is volatilized from the bark powder 3 in the longer term to give the moisture-proof sheet. Combined with the action of the microcapsules 2 in 1, it is possible to prevent termite damage continuously in the soil 6 and its surroundings from the initial stage of construction over a long period of time.

The effects obtained by the hinokitiol released from the liquid, the microcapsules 2 and the bark powder 3 are not only the termite-preventing effect, but also the insect-controlling effect against mites and other harmful insects, and sterilizing / antibacterial against mold and bacteria. It is possible to expect an effect, and further an effect of removing the causative agent of sick house syndrome such as formaldehyde emitted from synthetic resin adhesives used in buildings and new building materials. Also, by spraying the spray liquid A on the soil 6 after a certain period of time has passed after the building is completed, various effects including the termite exterminating effect can be achieved with high efficiency.

Furthermore, the moisture-proof sheet 1 of the present embodiment can be applied to the foundation portion of a building, walls, floors, and roofs, and in any case, the same effect as that of the above-mentioned embodiment can be obtained. it can. Further, depending on the purpose, it is also possible to mix only microcapsules in the moisture-proof sheet, or the spray liquid may contain only one or two of microcapsules, a hinokitiol-containing liquid, and bark powder. it can. In addition, the specific configuration of each unit is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0024]

The present invention is carried out in the form as described above, and has the following effects.

That is, according to the moisture-proof sheet of the present invention,
When the microcapsules mixed in the water-impermeable sheet body collapse, the liquid in the microcapsules is released and the hinokitiol in the liquid evaporates, and the insect repellent effect of hinokitiol is exerted, effectively preventing termite damage. be able to. Furthermore, since the moistureproof sheet itself is not damaged by being eaten by termites, the original moistureproof function of the moistureproof sheet can be effectively maintained. In addition, the action of hinokitiol removes causative agents of sick house syndrome, such as formaldehyde, released from new building materials and synthetic resin adhesives, to suppress the occurrence of sick house syndrome and prevent the growth of mold and bacteria. You can also

If wood powder containing hinokitiol is mixed with the microcapsules in the sheet body, hinokitiol is continuously released from the wood powder for a long period of time, but almost all of the wood powder is released. Even after the microcapsules have collapsed, it is possible to maintain the above effects for an extremely long period of time. In this case, if the bark powder of Aomori Hiba or Taiwan Hinoki, which contains a large amount of hinokitiol, is applied as the wood powder, the above effect can be more effectively exhibited.

Further, the microcapsules are contained in a porous capsule body composed of non-disintegrating particles and disintegrating particles,
When a liquid containing hinokitiol is incorporated, and at least the liquid is released from the inside of the capsule body by disintegrating the disintegrating particles with the passage of time, non-disintegrating particles form pores after disintegrating the disintegrating particles. The microcapsules alone can maintain the effect for a relatively long period of time because the internal liquid is not released all at once from the pores because the microcapsules are blocked as small as possible. Furthermore, since such microcapsules have different disintegration timings individually, the presence of a large number of microcapsules in the moisture-proof sheet results in continuous release of hinokitiol from the disintegrated microcapsules in the long run. The above-mentioned effects can be obtained over a long period of time. In particular, when the non-disintegrating particles are composed of ceramic particles and the disintegrating particles are composed of vegetable protein, such an effect can be remarkably obtained.

If the method of laying the moisture-proof sheet as described above between the foundation of the building and the sekiseki layer disposed thereunder during construction of the building is adopted, it is released from the microcapsules in the moisture-proof sheet. By the action of hinokitiol, it is possible to effectively prevent the invasion of termites from the ground and the damage caused by the multiplication of termites around the foundation. Furthermore, the soil in the vicinity of the foundation of the building or the soil below the cobblestone layer, if at least one of the microcapsules, the liquid containing hinokitiol, or wood powder containing hinokitiol is mixed or sprayed, It is possible to more effectively prevent termite damage by applying termite countermeasures to the soil around the foundation with hinokitiol. That is, the termite-preventing action is immediately exerted by the liquid containing hinokitiol, the medium-long term termite-preventing action is exerted by the microcapsules, and the long-term termite-preventing action is exerted by the wood powder, which is extremely efficient. Soil treatment can be performed, and the labor and cost of repeatedly applying the termite pesticide and the like repeatedly thereafter can be reduced.

[Brief description of drawings]

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

FIG. 2 is a schematic cross-sectional view showing an enlarged part of the moisture-proof sheet in the same implementation.

FIG. 3 is a diagram schematically showing a configuration of a spraying agent sprayed on soil in the same embodiment.

FIG. 4 is a schematic view of a microcapsule according to the same embodiment.

[Explanation of symbols]

1 ... Moisture-proof sheet 2. Microcapsules 3 ... Wood powder (bark powder) 4 ... Basic 5 ... Kuriishi Formation 6 ... soil 11 ... Sheet body 21 ... Capsule body 21a ... Non-disintegrating particles (ceramic particles) 21b ... Collapsible particles (vegetable protein particles) 22 ... Liquid containing hinokitiol

Front page continuation (51) Int.Cl. ⁷ identification code FI E04B 2/00 E04C 2/02 E04C 2/02 2/44 (58) Fields investigated (Int.Cl. ⁷ , DB name) E02D 27/01

Claims (6)

(57) [Claims] 1. A microcapsule comprising a water-impermeable sheet body and a microcapsule that contains a liquid containing hinokitiol and is capable of releasing the liquid when disintegrated by aging, and the microcapsule is contained in the sheet body. And trees such as Aomori Hiba and Taiwan Hinoki that contain hinokitiol
A moisture-proof sheet characterized by being mixed with skin powder . 2. Microcapsules containing non-disintegrating particles and
A porous capsule body composed of destructible particles and the capsule
A liquid containing hinokitiol contained in the main body
The collapsible particles disintegrate over time.
So that the liquid is released from inside the capsule body
Proof sheet to have claim 1, wherein the. 3. The non-disintegrating particles are ceramic particles.
Wherein the disintegrating particles consist of vegetable protein
The moisture-proof sheet according to claim 2, which is intended . 4. A non-water-permeable sheet body and hinokitiol
It contains a liquid containing water and disintegrates over time.
And a microcapsule capable of releasing the liquid at
, Microcapsules, non-disintegrating particles and disintegrating particles
Porous capsule body composed of child and the capsule body
It is composed of a liquid containing hinokitiol contained inside.
And the disintegrating particles disintegrate over time.
Configured to release the liquid from within the capsule body
However, the microcapsules are not mixed in the seat body.
Moisture-proof sheet characterized by the following. 5. The construction according to claim 4 when constructing a building.
Wet sheets are the foundation of the building and the stones that are placed below it.
How to use a moisture-proof sheet characterized by being laid between layers
Law. 6. A construction method according to claim 1, 2, 3 for construction of a building.
Or the moisture-proof sheet described in 4 is laid on the foundation of the building and below it.
It is laid between the Kuriishi layer and the area around the foundation of the building.
To the soil underneath the soil or under the cobblestone layer.
B. Capsules, liquid containing hinokitiol, or hinoki
At least one of wood powders containing chithiol
A method of using a moisture-proof sheet, which comprises mixing or spraying one of them.