JPH05346047A - Ant-proofing sheet and ant-proofing construction method - Google Patents

Abstract

PURPOSE:To improve damp-proofing and ant-proofing performance, safety, work performance, durability, and chemical effect holding performance by making knitted woven fabric or nonwoven fabric and a synthetic resin sheet into a complex, and holding an ant-proofing agent in the state of being fixed by microcapsules. CONSTITUTION:The specified quantity of a microcapsuled ant-proofing agent 3 is added into the solution of adhesive 4 to prepare a dispersed solution. The microcapsuled anti-proofing agent dispersed solution of the adhesive 4 is then applied to knitted woven fabric 2 or nonwoven fabric and dried. A synthetic film or a sheet 1 for forming a damp-proofing layer at the knitted woven fabric 2 or the like, and the ant-proofing agent containing knitted woven fabric 2 or the like are then made into a complex by the adhesive 4. In this case, the knitted woven fabric 2 or the like made of synthetic fiber is used for an antproofing agent protecting layer and a damp-proofing sheet protecting layer, and polyethylene or the like is used for the material of the synthetic resin film 1 or the like for the damp-proofing layer. The deposition seat of the ant-proofing agent microcapsuled on the knitted woven fabric 2 or the like is thereby large, so that the effective concentration of the ant-proofing agent in the same area becomes high so as to heighten the ant-proofing effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termite-proof sheet and a moisture-proof / termite-proof construction method for preventing damage to buildings and the like by termites.

[0002]

2. Description of the Related Art Conventionally, in order to prevent damage to wooden structures due to termites, an anti-termite treatment is carried out by spraying chemicals on underfloor soil and immersing or applying chemicals to basic wood, or using an anti-termite agent on the entire surface of the basic soil of the building. A method of laying a sheet-like material containing (hereinafter referred to as a termite-proof sheet) is well known.

Of these, the former is the construction at the construction site of the building, and at the time of construction at the site, the worker is exposed to harmful ant ant control agents, which may cause health hazards, and the soil to be sprayed. Environmental pollution due to pollution is unavoidable. For this reason, the latter termite-proof sheet laying method was devised to prevent the health hazards of workers on site and environmental pollution due to chemical spraying by producing a sheet with termite-proof ability in advance from factory production. Has been developed and implemented.

The following are known as an anti-termite sheet used in this method of laying an anti-termite sheet. That is, a sheet made of paper, cloth, or synthetic resin containing an anti-termite agent is attached with a moisture-proof synthetic resin sheet on one side or both sides of the sheet, which also has moisture-proof property (Shokai Sho 53-80908,
JP-A-53-142483, JP-A-62-25344
No. 3, Japanese Patent Publication No. 1-32021), a tape-shaped material such as paper, cloth, non-woven fabric, and synthetic resin, or a sheet-shaped material coated with an adhesive layer mixed with an anti-termite agent on one or both sides (Japanese Patent Application Laid-Open No. 1-2012). 279804), a polyurethane resin containing an anti-termite agent is applied to one surface of a sheet-like support, and a breathable sheet is laminated thereon (JP-A-2-101002) and micro-encapsulated anti-termite agent. For example, there is a sustainable termite-proof sheet in which the agent is evenly dispersed in synthetic resin or rubber-like asphalt (Shokaisho 61-65106).

[0005]

However, the termite-proof sheet obtained by the above-mentioned prior art has the following problems. In other words, the termite-proof sheet belonging to the groups and is produced by factory production in advance as compared with the on-site construction method of spraying chemicals on site, and the method of laying this sheet provides safety and environmental pollution countermeasures. In terms of progress, progress is recognized. However, these ant-proof sheets are volatile and highly toxic, and are used as a holder for paper, cloth, non-woven fabric, synthetic resin film, etc. when diluted in a solvent or mixed with an adhesive or adhesive. It is necessary to apply impregnation and dry it to form a sheet. In addition, the termite sheet of this group has a problem of environmental pollution in the sheet forming process and there is a risk that the worker may be contaminated with the termite preventive agent during the manufacturing process, sheet transportation, laying work, etc. It leaves a big problem. Furthermore, since these ant-preventive sheets have a volatile ant-preventive agent applied on the support, the ant-preventive sheets are largely scattered during the manufacturing process (drying process), resulting in poor yield and the efficacy of the ant-preventive sheets. There were drawbacks such as insufficient retention.

On the other hand, the termite-preventing sheet described in (1) is intended to solve the problems of safety and drug efficacy retention by using a microencapsulated termite-preventing agent. It is necessary to heat the synthetic resin or the rubber-like asphalt in order to mix and disperse the termite control agent in the synthetic resin or the rubber-like asphalt evenly. It is necessary to heat to a temperature of at least about 200 ° C. even in the case of forming a sheet of a compound of polyvinyl chloride which is considered to be capable of producing the sheet at a relatively low temperature, and in the case of forming a sheet of rubbery asphalt. Further, in the sheet forming method by the melt extrusion method of the mixture with polyethylene or ethylene vinyl acetate copolymer,
It requires temperatures much higher than 0 ° C., and it is not easy to make a termite sheet without disintegrating the microcapsules. Further, the termite-preventing sheet obtained by this method has a defect that the microencapsulated termite-preventing agent is embedded in the synthetic resin or rubberized asphalt forming the sheet, resulting in a remarkable decrease in the concentration of the effective agent.

Therefore, the object of the present invention is to improve safety, workability,
It is an object of the present invention to provide a termite-proof sheet and a termite-proof construction method with improved durability and drug efficacy retention.

[0008]

The above object of the present invention can be achieved by the following means. That is, the present invention has a large effective area for fixing and gripping the microencapsulated termite control agent and a film or sheet made of a synthetic resin and a woven or non-woven fabric useful as a protective layer for the moisture-proof sheet or film forming a moisture-proof layer. It is an anti-termite sheet made by compounding.

Since the microencapsulated ant-repellent agent is fixed and gripped on the porous woven or non-woven fabric, the ant-anticide deposition seat that can effectively exert its effect is large,
High effective anti-termite concentration in the same area can be obtained.
As in the method of No. 5106, there is no ant-preventive agent that is buried in asphalt or synthetic resin to be invalidated, and the effective utilization rate is high. A woven or non-woven fabric composited with a moisture-proof layer functions as a protective layer for a moisture-proof film or sheet, improving tear strength and tensile strength / elongation, and significantly improving resistance to damage during laying and damage accidents after laying. However, it is possible to form a tough ant-proof sheet that protects the building from humidity and blocks the intrusion of termites and is light and easy to apply. Since the termite control agent is applied in a microencapsulated state, it is possible to prevent workers from touching harmful termite control agents and absorbing their vapors and damaging them during the laying construction and during the production of termite control sheets. The environment can be improved. By applying the micro-encapsulated termite control agent, there is no loss due to evaporation / scattering of the termite control agent and the drug efficacy is high, and when termites attempt to pass through this termite control sheet layer, they adhere to termites and Alternatively, the drug is efficiently used because it is propagated to a friend by grooming with a friend and enters the body in each body orally or transdermally to exert its effect. We have provided an anti-termite sheet that solves the problems that could not be achieved by conventional technology.

The woven or non-woven fabric as the termite-preventing agent-holding layer and the moisture-proof sheet protective layer used in the present invention may be any woven or non-woven fabric made of any fiber material having a basis weight of 20 to 200 g / m ² , but it is durable. From polypropylene,
The use of synthetic fibers such as vinylon is preferred. Further, in consideration of weight saving, mechanical durability such as tear resistance, and drug holding ability, it is preferable to use a nonwoven fabric made of polyester or polypropylene long fibers. When using these long fiber non-woven fabrics, it is generally desirable to use the long fiber non-woven fabric of 50 to 80 g / m ^{2 in} view of the drug retaining ability and the moisture-proof layer protecting ability.

Further, the synthetic resin film or sheet material for the moisture-proof layer is not particularly limited as long as it is used for a general-purpose synthetic resin film, but from the viewpoint of moisture permeability, polyolefin such as polyethylene or polypropylene or poly It is preferable to select a film made of vinylidene chloride. Among them, polyethylene is selected because of its versatility in manufacturing a composite with a woven or non-woven fabric (a variety of composite methods can be adopted) and easiness. Is often advantageous. The thickness of the film or sheet required to form a moisture-proof layer made of a synthetic resin film or sheet for a moisture-proof layer should be taken into consideration only the moisture-proof ability because there is a protective layer made of a woven or non-woven fabric, and substantially 20 μm is sufficient. However, in consideration of safety against damage at the time of construction or after laying, and rigidity and weight affecting workability, a film having a thickness of 40 to 150 μm is generally used in combination. However, the use of a film or sheet having a thickness larger than that is not excluded.

The termite control sheet of the present invention is manufactured by the following method. Add a certain amount of microencapsulated termite control agent to the adhesive solution (often: adhesive emulsion) and stir,
Prepare an even dispersion. At this time, if necessary, an appropriate thickener is added to adjust the viscosity in order to maintain the sedimentation stability of the dispersion.
A knitted fabric or a non-woven fabric, which is a holder of an anti-termite agent and serves as a protective layer of a moisture-proof layer, is treated with the adhesive-termite-preventive agent microcapsule dispersion having the above-mentioned predetermined concentration by any of the following processing methods. (A) A knitted or woven fabric is impregnated with a dispersion of a microcapsule of an anti-termite agent as an adhesive and squeezed and dried. (B) A knitted or woven fabric is coated with an anti-termite agent microcapsule dispersion liquid of an adhesive and dried. (C) A woven or non-woven fabric is sprayed with an anti-termite agent microcapsule dispersion liquid of an adhesive and dried. (D) A knitted woven fabric or a non-woven fabric is coated with a foamed adhesive anti-termite agent microcapsule dispersion, and dried. In this way, a woven or non-woven fabric to which a predetermined amount of anti-termite microcapsules is attached is obtained.

Then, a synthetic resin film or sheet for forming a moisture-proof layer is composited on the knitted or woven fabric by any of the following methods to obtain the termite-proof sheet of the present invention. That is, (a) A synthetic resin film or sheet having a predetermined thickness and the above-mentioned woven fabric or non-woven fabric containing an anti-termite agent are combined with an adhesive by a so-called dry lamination method. (B) A synthetic resin film or sheet having a predetermined thickness is extruded from the T-die and pressure-bonded onto the above-mentioned antitermite-containing sheet.
Composite by the so-called extrusion lamination method.

Instead of the above-mentioned method, first, a composite of a woven or non-woven fabric and a moisture-proof film is prepared according to the method (a) and the method (b), and then (a),
According to the methods of (b), (c), and (d), the termite-preventing agent microcapsules are attached to make a termite-proof sheet. The termite sheet thus obtained has a schematic cross-sectional shape shown in FIGS.

FIG. 1 shows a product manufactured by the extrusion lamination method among the above manufacturing methods, 1 is a film for a moisture-proof layer, 2 is a knitted or non-woven fabric for holding an anti-termite agent and protecting the moisture-proof layer, and 3 is Anti-termite microcapsules, 4 indicates an adhesive for bonding the anti-termite microcapsules.

FIG. 2 shows a product manufactured by the dry lamination method among the above manufacturing methods, 1'is a film for a moisture-proof layer, 2'is a knitted or non-woven fabric for holding an anti-termite agent and protecting the moisture-proof layer, 3'is an anti-termite microcapsule, 4'is an adhesive for adhering the anti-termite microcapsule, 5
Indicates an adhesive layer for adhering (dry laminating) the film 1 ′ for a moisture-proof layer and the knitted or woven fabric 2 ′.

In the production of the termite-preventing sheet of the present invention, the adhesive agent for adhering the termite-preventing agent microcapsules may be any agent capable of gently adhering the termite-preventing agent microcapsules to the woven or non-woven fabric. It is not necessary and many commercially available adhesives can be used. However, a matter to be taken into consideration when selecting an adhesive is to select a material that does not dissolve or react with the microcapsule skin material. Therefore, in many cases, emulsion type adhesives are preferable, and commercially available synthetic rubber type (SBR, NBR, MB
R etc.) Emulsion adhesive, acrylic emulsion adhesive, ethylene vinyl acetate copolymer emulsion adhesive, etc. are preferable. An adhesive dissolved in an organic solvent is not preferable because it may dissolve the microcapsule skin material in the solvent and may cause environmental pollution, fire, and explosion. However, if the solvent used is one that does not dissolve the microcapsule skin material and has a low boiling point, the adhesive dissolved in the organic solvent can be dried at low temperature, and the risk of destruction of the termite-preventing agent microcapsules during drying is reduced. It has merit and may be used.

The anti-termite microcapsule adhesive is
It is only necessary to gently bond the termite-preventing microcapsules to the woven or non-woven fabric. It is better not to wrap the termite-preventing agent microcapsules in a strong adhesive bond with a strong adhesive layer (film). It is desirable that the amount of the adhesive used is 5 to 35% by weight in terms of the adhesive content, and the amount is kept as low as possible.

The method of performing the ant-proof / moisture-proof construction using the ant-proof sheet of the present invention does not require any special construction method, and the common specifications for housing finance loan housing and wooden house construction (with explanation) Anti-termite / moisture-proof construction standard (3.3.11)
"Underfloor Moisture Control" on page 16) or the Moisture Control Construction Standards of the Housing and Urban Development Corporation (see Section 2, "Preservation / termite construction" on page 21). However, when performing these constructions, the joints of the ant-proof sheet and the joints between the ant-proof sheet and the foundation, slabs, piping, and other building structures should be adhered and sealed with adhesive tape containing an ant-proof agent. It is necessary to make a perfect joint.

[0020]

According to the present invention, the woven or non-woven fabric has a large deposition area for the micro-encapsulated termite control agent, and the concentration of the effective termite control agent in the same area can be increased to effectively exert the termite control effect. it can. This is in contrast to the microencapsulated ant-preventive agent described in Japanese Utility Model Laid-Open No. 1-65106, which is buried in asphalt or synthetic resin to be invalidated.
Moreover, the woven or non-woven fabric functions as a protective layer for the moisture-proof film or sheet that forms the moisture-proof layer to improve the tear strength and tensile strength / elongation of the ant-proof sheet, and prevent damage and laying of the ant-proof sheet during installation. Significantly improves resistance to subsequent damage accidents. Further, the film or sheet made of synthetic resin protects the building from humidity and blocks the invasion of termites.

Moreover, the termite proofing method of the present invention prevents the worker from touching a harmful termite proofing agent and absorbing the vapor of the termite toxic agent. In addition, termites that attempted to pass through the termite prevention sheet layer first touched the termite control agent with the woven or non-woven fabric layer of the termite prevention sheet, spread it to the termite itself or a friend by grooming with a companion, and orally or via It enters each body by the skin and exerts its effect. At this time, since the termiticide is encapsulated in microcapsules, the termiticide is highly effective.

[0022]

【Example】

Examples 1 and 2 Well-known spunbond method (for example, Japanese Patent Publication No. 53-32424).
A random loop structure web made of 4 denier polyester filament manufactured according to Japanese Patent Publication No. 3) was embossed at 180 ° C. at a linear pressure of 60 kg / cm ² and partially thermocompressed to produce a thickness of 0.35 mm. ,
A low-density polyethylene having a melt index of 7 was extruded and laminated to a thickness of 50 μm on a long-fiber non-woven fabric having a basis weight of 70 g / m ^{2 to} obtain a long-fiber non-woven fabric of 70 g / m ^2.
A composite sheet with a μm polyethylene film is obtained.

The following composition was applied to the composite sheet to attach and fix the microencapsulated termite control agent in the compounding amount shown in Table 1 below: Polyzole AD-5 (56% solution) 68.4 parts Colaclar (25% solution) ) 3.0 parts micro-encapsulated termite control agent Adhesive consisting of a prescribed amount and a thickener to prevent sedimentation and separation of termite control agent were added (thickened to 8,000 cps) to microcapsules in an adhesive emulsion. A predetermined amount of the chemical termite control agent was dispersed, coated so that the total solid content was 30 g / m ^2, and dried at 100 ° C. at a feed rate of 10 m / min to produce the termite control sheet shown in Table 1. .. (Note) (1) Polyzole AD-5 (trade name): ethylene vinyl acetate copolymer adhesive manufactured by Showa Polymer Chemicals Co., Ltd. (2) Colaclar (trade name): water-soluble urethane resin manufactured by BASF

Comparative Example 1 In addition, in order to compare the performance of the termite-preventing sheet of this example and the conventionally known termite-preventing sheet, microencapsulated terminator was used in accordance with the processing recipe of the method for producing the termite-preventing sheet of the above-mentioned example. A composite sheet of a non-woven fabric and a synthetic resin film was prepared by blending a pure termite control agent instead of the termite formulation. At this time, in order to make the termite control performance at a level comparable to that of Example 2 and at the level of being manufactured as an actual product, both pure chlorpyrifos and fenitrothion were blended at 1 g / m ² (Kayataku MC Is a microcapsule containing 25% of chlorpyrifos, so chlorpyrifos 1 g / m
The addition of ² corresponds to the addition of Kayattaku MC4g / m ^2,
Lambert MC is a microcapsule containing 20% fenitrothion, so 1 g / m ^{2 of} fenitrothion
Corresponds to the addition of Lambertian MC 5 g / m ² . ). Therefore, the sample of Comparative Example 1 can be compared with the sample of Example 2 as a material having the same ant-preventive agent concentration.

[0025]

[Table 1] (Note) 1. Kayatak MC (trade name): Chlorpyrifos * manufactured by Nippon Kayaku Co., Ltd. * Microcapsules containing 25% *: o, o-diethyl-o- (3,5,6-trichloro-2-pyridyl) -phosphorothioate 1. Lambert MC (trade name): Microcapsules containing fenitrothion # 20% manufactured by Sumitomo Chemical Co., Ltd. #: o, o-dimethyl-o- (3-methyl-4-nitrophenyl) -phosphorothioate 3. Comparative Example 1 is a comparative sample in which 1% each of chlorpyrifos * and fenitrothion # which are not microencapsulated are attached.

Comparative Examples 2 and 3 Further, for comparison, an example (Comparative Example 2) in which a woven fabric (gold width) is used in place of the long fiber nonwoven fabric (spunbond nonwoven fabric) in Examples 1 and 2 and known examples. 2.0g / m ² of KAYATAKU MC in ethylene / vinyl acetate copolymer sheet
And a Lambertian MC 2.5 g / m ² were kneaded to prepare a sheet type of termite-proof sheet (Comparative Example 3). The physical properties of these ant-proof sheets are as shown in Table 2.

[0027]

[Table 2]

Since the micro-encapsulated termite control agent and the pure termite control agent do not have a function of influencing the physical properties of the sheet, each sample shown in Table 1 does not show a difference in the physical properties of the sheet depending on the compounding amount of the termite control agent. It was found that the physical properties of each sheet are determined depending on the physical properties of the reinforcing material laminated with the adhesive, and the physical properties of the sheet such as Comparative Example 3 are dependent on the physical properties of the sheet containing the termite controlling agent.

As shown in Table 2, the termite-proof sheets according to Examples 1 and 2 are lightweight, have good mechanical performance, excellent moisture-proof performance, high durability, and good workability. In Comparative Example 2, the reinforcing material of Examples 1 and 2 was changed to a long fiber non-woven fabric, and thus a woven fabric was used.

Next, the termite sheet samples prepared in the above-mentioned examples and comparative examples in order to confirm the termite-holding agent holding property of the termite sheet were subjected to an open system at 60 ° C. incorporating fresh air.
The suspension was suspended in a circulating hot-air dryer adjusted to 1, and an accelerated test of chemical scattering was performed, and the amount of chemical scattering with time was measured by a gas chromatography method. The result is shown in FIG.

Further, the above-mentioned chemical retention test was carried out by the termite penetration prevention capability indoor test of the termite-preventing sheet, and the termite-preventing ability and the duration of drug efficacy of the termite-preventing sheet according to the present example and the comparative example, which had undergone the respective drug scattering states, The properties were evaluated, and the test results are shown in Tables 3 and 4. The test in Table 3 is the test result immediately after the production of the ant-proof sheet, and the test in Table 4 is the result of the weather resistance test after aging the ant-proof sheet.

The termite penetration preventing ability indoor test was carried out using the apparatus shown in FIG. 4 as follows. That is,
A glass tube 6 having a length of 10 cm shown in FIG. 4 is filled with food (sawdust) 7 preferred by termites, and openings at both ends thereof are closed with an anti-termite sheet 8 of this embodiment, and two glass containers 10 containing soil 9 are stored. The end of the glass tube 6 closed by the dovetail sheet 8 is connected to the side opening. Then, 200 termite workers and 20 soldiers were put into the soil 9 of the two glass containers 10 of this test container, and the number of surviving after a predetermined period of time and the feeding damage state of the ant-proof sheet 8 were investigated, The ant-preventive ability and the duration of drug efficacy were evaluated. The soil 9 used in this experiment was sandy loam 20 mesh or less.
It was used after being sterilized at 0 ° C.

[0033]

[Table 3] (Note) 1. Each test evaluation is based on the test results of two test samples. The indications of food damage evaluation in the table are: +: Damaged perforation (penetration), ±: With food marks, −: No both food marks and perforations

[0034]

[Table 4] (Note) 1. The food damage evaluation symbols are the same as in Table 2. Agin of samples of Examples 1 and 2 and Comparative Examples 1, 2 and 3
As is clear from the above examples, the termite-preventing sheet of the examples of the present invention has superior termite-preventing effect as compared with the conventional products, and has a high potency-retaining ability. It turned out that the ant effect can be maintained.

The test evaluations in the above examples were carried out according to the following methods. (1) Physical properties of ant-proof sheet The test was performed according to the synthetic long-fiber nonwoven fabric test method established by the Japan Chemical Fiber Association. As a general rule, sample collection and preparation are 1/10 of the width from both ears of the original fabric and 100 from the terminal.
Samples are taken for each lot from the position excluding cm (1 time sampling for 3,000m for large lots)
The measurement was carried out after conditioning under standard conditions. a. Base weight 1. Sample size 1m x 1m 2. Number of samples 1 per 1m width 3. Measurement method Measure the mass by bringing the sample into water equilibrium. 4. Display of results The average value is calculated and displayed in integer units in g / m ² . b. Thickness 1. 5 points at equal intervals (20 cm intervals) per 1 m width
Let's place 2. Measuring method The size of the presser foot is 9mm in diameter.
Using the above-mentioned appropriate measuring machine, the load is set to 20 gf / cm ² , and the thickness is measured by leaving it for an appropriate time (normally about 10 seconds) until the thickness settles down. 3. Display of results Average value is calculated and effective number is 2 in mm.
Display digits. However, up to 2 digits after the decimal point. c. Tensile strength (stress at 5% elongation) and elongation 1. Sample size 5 cm x 20 cm 2. Number of samples 3 pieces each for vertical and horizontal per 1 m width 3. Measuring method According to JISL1096 (Test method for general textiles), a constant-speed extension type tensile tester is used. Tensile strength and elongation ¹⁾ are measured with a gripping interval of 10 cm and a pulling speed of 20 ± 2 cm per minute. 4. Displaying the results Vertically calculate the average value for each direction. Tensile strength is displayed in units of kgf / 5 cm up to one decimal place. The growth rate is displayed in percentage units up to an integer. Note 1) Strength at maximum load and elongation at that time.
The stress at 5% elongation is obtained by reading the stress at 5% elongation from the stress-strain curve in this measurement. d. Tear strength A method Single tongue method 1. Sample size 5 cm x 25 cm (However, if the width of the thick sample is 5 cm and the width is insufficient, the width is 20 cm) 2. Number of samples 3 pieces each for vertical and horizontal per 1 m width 3. Measurement method 10 cm perpendicular to the center of the short side of the sample
Make two tongues by making a cut, and use a constant-speed extension type tensile tester with a gripping interval of 10 cm and sandwich each tongue at right angles to the gripping interval and pulling speed of 20 ± 2 cm per minute.
Measure the maximum load (maximum maximum value) when tearing. 4. Displaying the results For each vertical direction, obtain the average value for each of them, and display up to one digit after the decimal point in kgf units.

(2) Analysis of the content of the termite-preventing agent About 30 cm ² (10 cm × 3 c) of the test piece of the termite-preventing sheet
After m) is cut out and precisely weighed, it is put in a Soxhlet extractor and extracted for about 2 hours using 100 ml of chloroform on a hot water bath. After cooling this extract, put it in a 200 ml volumetric flask and add chloroform up to the marked line.
Obtain the diluted and diluted extract. Using this extract, the content of the termiticide contained in the extract was measured by the following gas chromatography according to a conventional method. Gas chromatography operating conditions: -Filler: 5% Silicone DC QF-1 on
Chromsorb WAW DMCS 80/100 ・ Column size: 3 mmφ × 60 cm (L) ・ Column temperature: 180 ° C. (constant temperature) ・ Inlet port temperature: 180 ° C. ・ Detector temperature: 180 ° C. ・ Carrier gas flow rate: 50 ml / min. -Retention time of the target termiticide: a) o, o, -diethyl-o- (3,5,6-trichloro-2-pyridyl) -phosphorothioate = chloropyrifos R _f = 1.5 min. b) o, o-dimethyl-o- (3-methyl-4-nitrophenyl) -phosphorothioate = fenitrothion _Rf = 3.0 min.

Example 3 Next, an example of the termite proof construction method of the present invention will be described. FIG. 5 shows an example of the adhesion construction method without the coating material layer shown in claim 2. The ant-proof sheet 8 having holes pre-drilled in the portion corresponding to the portion occupied by the pipe 16 and the bund stone 17 is laid over the entire floor surface 15 of the building floor with the moisture-proof sheet layer as the upper surface. The joint between the ant-proof sheet 8 and the building foundation 11, the pipe 16 and the bundle stone 17 is adhesively sealed with an adhesive tape 12 containing an ant-preventive agent.

Further, FIG. 6 shows an embodiment of the concrete pouring type shown in claim 3. The ant-proof sheet 8 is laid over the entire floor base of the building with the moisture-proof sheet layer as the upper surface. At this time, an adhesive tape 12 containing an anti-termite agent is bonded to the joint between the ant-proof sheet 8 and the building foundation 11. In this way, the concrete 13 is driven.

[0039]

As described above, according to the termite proof sheet and termite proofing construction method according to the present invention, (1) an effective termite proofing agent in the same area has a large seat for depositing a termite proofing agent of a woven or non-woven fabric. High concentration, real flat 1
The effective utilization rate is high because there is no ant-preventive agent buried in asphalt or synthetic resin and ineffective like the one described in Japanese Patent No. 65106. (2) Since the moisture-proof sheet is reinforced by being combined with a woven or non-woven fabric having a high reinforcing effect, it improves the tear strength and tensile strength and elongation of the ant-proof sheet and is extremely tough, and is damaged during construction and other handling of the sheet. The workability is good and there is no fear of damage to the sheet resulting in damage to the ant / moisture-proof effect. (3) Since the termite control agent is applied in a microencapsulated state, the highly toxic termite control agent may come into direct contact with the human body or evaporate during handling of the termite control sheet manufacturing process, construction process, and all other handling operations. It is extremely safe without any worry in terms of danger and safety such as inhaling after polluting the work environment. (4) Since the termite control agent applied to the termite control sheet is microencapsulated, only when the termites try to break through the termite control sheet and invade the house without evaporating and scattering. Since the microcapsules are destroyed and a drug adheres to termites to exert a medicinal effect, which has an extremely high effect, it has an unprecedented characteristic that the medicinal effect is effective and the durability is extremely high.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of an anti-termite sheet of the present invention.

FIG. 2 is a schematic cross-sectional view of an anti-termite sheet of the present invention.

FIG. 3 is a graph showing the termite-preserving agent residual ratios of Examples of the present invention and Comparative Examples.

FIG. 4 is a view showing a termite penetration preventing ability indoor test device for the termite prevention sheet of the example of the present invention and the comparative example.

FIG. 5 is a diagram showing a method of applying a termite proof according to Example 3 of the present invention.

[Fig. 6] Fig. 6 is a diagram showing a concrete dovetail type anti-termite construction method according to a third embodiment of the present invention.

[Explanation of symbols]

 1, 1'Moisture-proof layer film or sheet 2, 2'Knitted cloth or non-woven fabric 3, 3'Termite-preventing agent Micule capsule 4, 4'Adhesive 5 Adhesive layer for dry laminating 8 Ant-proof sheet 11 Building foundation 12 Adhesion Tape 13 Concrete 15 Building floor ground surface 16 Piping 17 Bundle stone

Claims (3)

[Claims] 1. A termite-preventing sheet comprising a composite of a woven or non-woven fabric layer on which a microencapsulated termite inhibitor is fixed and gripped, and a moisture-proof sheet layer made of a synthetic resin film or sheet. 2. A building such as a joint between the ends of the termite-preventing sheet and the termite-preventing sheet and a building foundation and a slab of stone, etc., wherein the moisture-proof sheet layer of the termite-preventing sheet is spread over the entire surface of the floor substrate. An ant-proof construction method having both ant-proof and moisture-proof properties, characterized in that the joints between structures are joined and sealed with adhesive tape. 3. A building such as a joint between end portions of the termite-preventing sheet and the termite-preventing sheet and a building foundation and a boulder, etc. A ant-proof construction method having both damp-proof and ant-proof properties, characterized in that the joints of the structure are joined and sealed with an adhesive tape, and concrete is poured from above or covered with sand or the like.