JP2825204B2 - Cockroach repellent - Google Patents

Description

The present invention relates to a novel structure of a sustained-release repellent for cockroaches living indoors.

[Background Art] Cockroaches that live indoors, such as German cockroaches, black cockroaches, and black cockroaches, are usually nocturnal and omnivorous. In indoors, the main area of activity is around kitchen kitchens and cupboards. It is.

Conventionally, for such cockroaches, an aerosol containing an insecticide or a repellent as an active ingredient or the like is sprayed in the passage, or the smoke is smoked at a target location, or an attractant is used. The method of attracting and capturing on the above-mentioned adhesive trap was the main method. Further, as a repellent for the above cockroaches, N, N-diethyltoluamide (hereinafter, referred to as “DEET”) has a good repellent effect and is almost harmless to the human body. Most commonly used. Since DEET is a liquid agent, it has been used in the form of a cockroach repellent sheet or the like contained in a substrate such as a nonwoven fabric.

[Problems to be Solved by the Invention] Cockroaches cannot be completely eliminated by the above-mentioned conventional methods of spraying an aerosol, smoking and attracting and trapping. In other words, it is extremely difficult to extend the efficacy of these methods to all areas where cockroaches exist.
This is because it is insufficient against intrusion from outside.

Further, according to these conventional methods, contamination due to cockroach activity is inevitable, and contamination due to the attachment of a drug by spraying or the like also occurs. There are also drawbacks, such as the presence and efficacy of the exterminated cockroach corpses are extremely short.

In contrast to such conventional cockroach extermination methods, a method for repelling cockroaches solves some of the drawbacks of the above extermination method in that the cockroaches can be prevented from approaching and invading the target area itself. However, the characteristics of cockroach repellent require that its efficacy be maintained for a long period of time, and that its efficacy be stable throughout that period. However, the above-mentioned conventional DEET repellent sheet has a drawback that its efficacy is only as short as about 30 days.

An object of the present invention is to provide a cockroach repellent material that can effectively and stably exert a repellent effect on cockroaches over a long period of time, and that is efficient, safe, and convenient to use. .

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a cockroach repellent material is configured as follows.

That is, (RS)-(E) -1-ethynyl-2-methyl- is kneaded into a synthetic resin raw material in a heat-softened state.
A metal foil material is laminated on one surface of a plate-like or film-like base sheet containing 2-pentenyl- (IR) -cis, trans-chrysantemer (hereinafter referred to as “VS”). Features.

VS is a pale yellow transparent liquid having the following chemical structure,
It has a specific gravity of 0.932, a vapor pressure of 1.62 × 10 ^-3 mmHg (30 ° C), and decomposition temperature characteristics of 200 ° C or more.

In addition, the synthetic resin raw material refers to a material immediately before molding of the synthetic resin. As the synthetic resin material, polyethynylene,
In addition to polypropylene, thermoplastic powders, pellets, and the like that can be molded at a temperature equal to or lower than the decomposition temperature of VS can be used. In addition, kneading of VS into synthetic resin raw materials
This is achieved by uniformly mixing the VS into the synthetic resin raw material under the condition not lower than the softening temperature of the synthetic resin material. The softening conditions in this case differ depending on the type of the synthetic resin material, and are, for example, 85 to 124 ° C for polyethylene and 102 to 116 ° C for polypropylene.

In this case, the content of VS with respect to the synthetic resin material varies depending on the type of the synthetic resin material, but from the viewpoint of the moldability of the synthetic resin material, the economics of VS, etc. And VS is 1
A preferred condition is a blending ratio of 20% by weight. The effective period of the repellent material can be adjusted by adjusting the amount of VS. Also mentioned above
The synthetic resin raw material into which VS has been kneaded can be formed into a plate shape or a film shape by ordinary means.

In the synthetic resin raw material described above, a range that does not hinder the effect of the present invention, preferably in a range of 0.5 to 1.0% by weight,
Bacterial and fungicides such as O-phenylphenol and diphenyl thymol, and fragrances such as linalool and d-limonene can be contained. In addition, the laminating structure of the metal foil material with respect to the plate-shaped or film-shaped molding material of the synthetic resin material described above is such that when the synthetic resin material is molded into a plate-shaped or film-shaped material, the metal foil material is simultaneously layered, or It can be obtained by sticking and overlaying a metal foil material after formation. An example of the metal foil material is an aluminum foil material.

In addition, the mesh material on the other side of the above-mentioned plate-shaped or film-shaped synthetic resin material can also be obtained by layering the mesh material at the same time as forming the synthetic resin material into the plate-shaped or film shape as described above. it can. Examples of the mesh material include a vinyl chloride film material.

[Function] In a plate-shaped or film-shaped synthetic resin molded material obtained by kneading VS into a synthetic resin raw material, VS is contained in the synthetic resin material in a uniform state, and the VS is contained. VS can volatilize the VS contained therein over a long period of time in a sustained and effective manner based on its normal-temperature volatility. The volatilized VS, together with its cockroach repellent effect, can exert a stable cockroach repellent action around it for a long period of time.

The effect of such a VS kneaded synthetic resin molding material is that, by laminating a metal foil material on one surface of the forming material, the volatilization surface of the contained VS is limited to the other surface of the forming material. The repelling efficiency can be increased. Further, according to the laminated structure of the metal foil material, the repellent material itself can be strengthened and physical performance such as flexibility can be additionally retained, and the repellent material is placed on the repellent material via the metal foil material. The pressure-sensitive adhesive layer can be formed, thereby enabling the fixed use of the repellent material and expanding the use range thereof.

Further, in a configuration in which a nonwoven fabric or a mesh material is laminated on another surface of the synthetic resin forming material, the volatilization performance of VS contained in the laminated surface can be maintained, and the VS liquid may be exposed. It acts to cover the surface of the forming material, and it is possible to diversify its surface form, for example, by adding cushioning to the surface.

Example Next, an example of the present invention will be described.

The cockroach repellent material A shown in FIG. 1 has a laminated structure of a base material sheet 1 and an aluminum foil material 3.

The base sheet 1 was prepared by adding VS to the polyethylene raw material at 0.125 g / m
^The mixture was kneaded at a ratio of ³ and kneaded to form a 30 μm thick sheet. In addition, 2 shows VS uniformly contained in the polyethylene material. The base sheet 1
The aluminum foil material 3 on the surface is 15 μm thick.

The cockroach repellent material B shown in FIG. 2 is obtained by applying an adhesive on the surface of the aluminum foil material 3 of the repellent material A described above.

A cockroach repellent C shown in FIG. 3 is obtained by further laminating a nonwoven fabric 5 on one side of the base sheet 1 of the repellent A described above.

The cockroach repellent material D shown in FIG. 4 is obtained by laminating a mesh material 6 (larger than 10 mesh) made of vinyl chloride in place of the nonwoven fabric 5 in the repellent material C described above.

(Cockroach repellent test) Next, FIG. 5 shows a container 12 having an open upper surface.
(Vertical, 20cm, width 26cm, height 10cm), test equipment 11
showed that.

On the inner bottom surface of the container 12, the cockroach repellent material A was arranged as a sample sheet 13 at one corner position, and a 10 cm × 10 cm size filter paper was arranged as a blank sheet 14 at another adjacent corner position. . Also, shelter 16 is 5 cm long and 5 cm wide.
cm, a box having a size of 0.7 cm in height, and formed so as to have openings on both sides facing each other.
Were placed at the corner positions facing the sheets 13 and 14 on the inner bottom surface of the container 12, respectively, with the openings facing the same. Also, on the surface of each of the sheets 13 and 14, a bait 15 in which starch is kneaded with water and rolled is placed.

Next, 20 adult German cockroaches (10 males and 10 females) were released into the container 12 constructed as described above, the bait 15 consumption was measured, and the measured intake amount was calculated based on the following formula. The repellency was calculated.

Here, the amount of food on the sample side refers to the amount of bait 15 on the sample sheet 13, and the amount of food on the control side refers to the amount of bait 15 on the blank sheet 14.

Regarding the repellent rate, etc., the value immediately after exposure was No. 1 in Table 1.
The value one month after exposure is shown in No. 5 in Table 2, the value three months after exposure is shown in No. 9 in Table 3, and the value six months after exposure is shown in No. 13 in Table 4. Each is shown.

The filter paper (10 cm × 10 cm large) impregnated with VS at a rate of 10 g / m ² was No.2, No.5, No.10 and No.14, and
No. 3, No. 6, No. 11 and No. 15 were impregnated with VS at a rate of 0.125 g / m ^{2 on} another same filter paper, and DEET was 10 g / m on another same filter paper. No. 4 and No. 4 impregnated at a rate of ²
7, No. 12 and No. 16, the values of the repellent rate immediately after exposure, 1 month after exposure, 3 months after exposure, and 6 months after exposure, respectively, were used as controls.

From the results shown in No. 1, No. 5, No. 9 and No. 13 of Tables 1 to 4, according to the cockroach repellent material of the present invention, in comparison with the results of each control, It can be confirmed that an effective repellent effect is exhibited relatively stably over a long period of time.

In the cockroach repellent material A, the base sheet 1
When molding (30 μ thickness), VS is compounded at a rate of 0.125 g / m ² , and at the same time, O-phenylphenol as a fungicide and fungicide is 0.125 g / m ² and fragrant oil as a fragrance ( Linalool (containing 90%) at a compounding amount of 0.005 g / m ² , the same cockroach repellent effect test as described above was performed. As a result, together with the same cockroach repellent effect as described above, a fragrance specific to the contained fragrance was generated No mold was observed on one surface of the base sheet.

[Effects of the Invention] Since the present invention is configured as described above, the following effects are exhibited.

In the present invention, since a metal foil material is laminated on one surface of the base sheet, the cockroach repellent effect of the synthetic resin base sheet containing the VS kneaded therein is stabilized for a long time. In addition, the repellent effect can be further stabilized, so that the economical use becomes possible by reducing the blending amount of VS.

Further, since the base sheet is strengthened by the lamination structure of the metal foil material, it is possible to make the base sheet thinner, in combination with the reduction in the amount of VS described above,
This results in a cheaper product. In addition, a fixing member such as an adhesive can be configured via a metal foil material, which enables various uses.

In addition, according to the laminated structure of the nonwoven fabric and the mesh material on the other side of the base sheet, the base sheet can be further strengthened while maintaining the volatilization performance of the VS, and can be exposed on the base sheet surface. Prevents contact with certain VS liquids, enabling safe use.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of the cockroach repellent material of the present invention, FIG.
FIG. 3 is a longitudinal sectional view of the same, FIG. 3 is a longitudinal sectional view of the same, FIG. 4 is a longitudinal sectional view of the same, FIG. Description of drawing symbols A to D: cockroach repellent material, 1: base sheet, 3 ...
Metal foil material, 5: Non-woven fabric, 6: Mesh material

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) A01N 53/00 A01N 25/34 A01N 25/10 CA (STN) REGISTRY (STN) WPIDS (STN)

Claims (2)

(57) [Claims] (1) (RS)-(E) -1-ethynyl-2-methyl-2-pentenyl- (1R) -cis, trans-chrysanthemate is kneaded into a heat-softened synthetic resin raw material. A cockroach repellent material comprising a metal foil material laminated on one side of a contained plate-like or film-like base sheet. 2. The cockroach repellent material according to claim 1, wherein a nonwoven fabric or a mesh material is laminated on the other surface of the base sheet.