JP2000000049A - Apparatus for catching insect pest and maintaining sanitary environment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both an apparatus capable of effectively catching light attractable flying insect pests, killing the insect pests, reducing a malodor such as the putrid smell of dead bodies generated from caught and killed insect pests and well maintaining the sanitary environment and a deodorizing method for the caught insect pests. SOLUTION: This apparatus for catching insect pests and maintaining the sanitary environment is obtained by installing a light source 1 at 300-600 nm wavelength, a light attracting trap 2 for the insect pests arranged around the light source 1 and a photocatalyst supporting molded product 3 supporting a photocatalyst excited with the light source 1 adjacently to the light attracting trap 2 for the insect pests. Furthermore, the method for deodorizing caught insect pests comprises catching the insect pests by light attraction using the light source 1 at 300-600 nm wavelength and deodorizing a malodor derived from the caught insect pests with a photocatalyst excited with the light source 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for maintaining a pest-capturing hygiene environment and a method for deodorizing captured pests. More specifically, in food and pharmaceutical processing plants, hospitals, theaters, hotels, etc., it is suitable to prevent the incorporation of light-induced pests and unpleasant pests, generate odors, etc., and to maintain a sanitary environment The present invention relates to an apparatus for maintaining a pest-capturing hygiene environment and a method for deodorizing captured pests.

[0002]

2. Description of the Related Art In general, many flying pests attracted by light are attracted to light having a wavelength of 300 to 600 nm, especially around 380 nm. Therefore, in order to capture and kill the flying pests having such properties, a pest trap apparatus using black light or chemical light of a specific wavelength has been used for a long time.

For example, as a device for capturing and killing flying pests, an adhesive trap having a transparent adhesive sheet disposed around a light source for attracting flying pests (Japanese Patent Application Laid-Open No. 8-47361), a trap using a suction device, a high-voltage electric shock A trap or the like in which a line is arranged is known.

On the other hand, it is known that, for example, titanium oxide, which is used as a photocatalyst, absorbs and excites light having a wavelength of 400 nm or less, and exhibits effects such as antibacterial and deodorant. A polymer sheet carrying a photocatalyst is also known (Japanese Patent No. 2565371). However, such a photocatalyst-supporting polymer sheet is applied to a catching device for flying pests, and a device that maintains a sanitary environment together with the pest capture. No reports have been made.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and is capable of effectively capturing and killing a light-attracting flying pest. It is an object of the present invention to provide a pest-capturing sanitary environment maintaining device and a method for deodorizing captured pests, which are capable of maintaining a good sanitary environment by reducing odors such as dead odors generated from water.

[0006]

In view of the fact that both pest attraction and excitation of the photocatalyst require near-ultraviolet light and an ultraviolet region as light sources, the present inventors have conducted intensive studies and found that pest capture and sanitation The present inventors have found an apparatus that can achieve both the maintenance and the present invention.

That is, the gist of the present invention is as follows.
A light source of 0 to 600 nm, a pest light attracting trap disposed around the light source, and a photocatalyst-carrying molded article carrying a photocatalyst excited by the light source are provided in proximity to the pest light attracting trap. And (2) using a light source having a wavelength of 300 to 600 nm to capture the pests by light attraction, and deodorizing odors derived from the captured pests with a photocatalyst excited by the light source. A method for deodorizing captured pests,
About.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The apparatus for maintaining a sanitary environment for insect pests of the present invention includes a light source, a trap for attracting insect pests, and a molded article carrying a photocatalyst.

The light source has a wavelength of 300 to 600.
It is not particularly limited as long as it is nm and can attract flying pests, and examples thereof include black light, blue fluorescent light, and chemical light.

[0010] Examples of the insect pest-inducing trap include an adhesive capture sheet coated with an adhesive, an electric shock trap, a suction trap, a basin trap, and a collision plate trap. In view of this, an adhesive capture sheet coated with an adhesive, an electric shock trap, and a suction trap are preferable.

As the adhesive trapping sheet, a plastic sheet having good light resistance, weather resistance, water resistance and heat resistance is suitably used. For example, it is preferable that a sheet made of vinyl chloride, polystyrene, polyester, polyethylene, polypropylene, or the like be coated with an adhesive on at least a part of its surface. The pressure-sensitive adhesive is not particularly limited, and any known pressure-sensitive adhesive for catching insects, such as a butyl rubber-based pressure-sensitive adhesive, a polybutene-based pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, and a hot-melt pressure-sensitive adhesive, can be used. In the present invention, in order to effectively utilize the light of the light source and more effectively capture flying pests, the sheet and the adhesive are also transparent, preferably a light wavelength of 600 nm or less, and ultraviolet light. It is preferable to use a transparent adhesive capture sheet using a transparent adhesive capture sheet.

[0012] The electric shock trap is a device for capturing and killing a pest induced by light with a high-voltage electric shock wire.
Electric shock grid machine.

As shown in an example in FIG. 2, the suction trap may have a structure in which a suction port is arranged around a light source so that a flying pest attracted by light can be sucked and captured.

The photocatalyst-carrying molded product is a molded product carrying a photocatalyst, provided that it can carry a photocatalyst.
The form of the molded product is not particularly limited. For example, there is a photocatalyst-supporting polymer sheet in which a powdery photocatalyst is supported on the surface of a polymer sheet in which a polymer compound is formed into a sheet shape. In the present invention, such a polymer sheet is preferably a transparent sheet, like the adhesive capture sheet. Alternatively, a mesh-shaped base material having a desired coarseness to maintain translucency, for example, a mesh-shaped molded product in which after coating the surface of a glass cloth mesh with a polymer compound, a photocatalyst is supported on the surface. A preferred example is given. Further, the adhesive capture sheet and the photocatalyst-carrying molded article may be integrated using the same base material, such as a photocatalyst supported on the back surface of the adhesive capture sheet coated with the adhesive.

Examples of the polymer compound used for supporting the photocatalyst include polyesters such as polyethylene terephthalate (hereinafter, referred to as PET), polyimides, epoxy resins, and polytetrafluoroethylene (hereinafter, PT).
FE), polyamide-imide,
Examples thereof include polyvinyl chloride, polyethylene, polystyrene, and acrylic resin. Among these, PET and PTFE are preferable from the viewpoint of transparency and weather resistance.

The photocatalyst is not particularly limited as long as it is excited by the light source, and examples thereof include titanium oxide and zinc oxide. Among these, titanium oxide is preferred. Although the average particle size of the photocatalyst is not particularly limited, it is usually preferably 3 to 50 μm.

The amount of the photocatalyst to be carried is not particularly limited, but is usually preferably 1 to 30 g per 1 m ^{2 of} the molded product.

The loading of the photocatalyst can be carried out by a conventional method, for example, by the method described in Japanese Patent No. 2565371.

The apparatus for maintaining a pest-capturing sanitary environment of the present invention is provided with a photocatalyst-carrying molded article in the vicinity of a pest-light-inducing trap, whereby odors such as dead odors generated from the captured pests are eliminated. It can be reduced effectively.
Here, the term “provided in proximity” differs depending on the mode of the insect pest trap, but the proximity is not limited as long as the odor reduction effect can be achieved. For example, as described above, the arrangement may be such that the front and back surfaces of the polymer sheet are arranged (FIG. 4), or they may be arranged with a predetermined gap (FIGS. 1 and 5). This gap may be of an extent that an odor reduction effect can be obtained, and can be appropriately selected in consideration of the amount of the photocatalyst carried and the like. In this case, as shown in FIGS. 1 and 5, it is preferable to arrange the photocatalyst-carrying molded article in parallel with the insect pest trap, in order to efficiently obtain the odor reduction effect. In addition, when a suction trap is used as shown in FIG. 2, the photocatalyst-carrying molded article may be arranged near an opening (suction opening in FIG. 2) where an odor such as a pest death odor is generated.

Incidentally, in order to effectively utilize the light emitted from the light source, a light reflection plate or the like may be further provided around the light source, if desired.

The method for deodorizing a captured pest of the present invention can be carried out at a wavelength of 30.
A method in which a pest is captured by light attraction using a light source of 0 to 600 nm, and a malodor derived from the captured pest is deodorized by a photocatalyst that is excited by the light source. The present invention can be carried out using the apparatus for maintaining a pest capturing and sanitary environment of the present invention.

[0022]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to only these examples.

Example 1 A device having the structure shown in FIG. 1 was manufactured as a pest-capturing sanitary environment maintaining device. As shown in the drawing, a cylindrical transparent adhesive capturing sheet 2 is disposed around the cylindrical chemical lamp 1 as a light source along the axial direction, with the adhesive surface facing outward. A tubular and mesh-shaped photocatalyst-carrying molded article 3 is arranged so as to surround the capture sheet 2. The gap between the mesh-shaped photocatalyst-carrying molded article 3 and the adhesive capture sheet 2 is about 5 mm.

The chemical lamp 1 as a light source is manufactured by Toshiba Corporation (product number: FL 4BL, main wavelength: 300 to 4).
40 nm, maximum wavelength: 369 nm), adhesive capture sheet 2
Used was a sheet made of polyethylene coated with a butyl rubber-based adhesive on one side (20 cm × 40 cm). The photocatalyst-carrying molded product 3 is a molded product (20 cm / m ^{2) in} which the surface of a glass cloth mesh having a roughness of 5 mm × 5 mm is coated with PTFE, and titanium oxide having an average particle diameter of 7 nm is supported on the surface at a supporting amount of 20 g / m ^2. × 45c
m, thickness: 1 mm, porosity: 64%).

Next, the following three tests were performed using this apparatus.

(1) Deodorizing test using acetaldehyde A pest-capturing and sanitary environment maintaining apparatus shown in FIG. 1 was installed in a 2,000-liter closed box, and 18 μl of acetaldehyde, a component of tobacco odor, was injected. The half-life of the concentration of acetaldehyde after turning on the chemical lamp of the apparatus was examined. As a result, the half-life was 4.5 hours. As a control test, a similar test was performed without turning on the chemical lamp. As a result, the reduction rate of the acetaldehyde concentration after 4 hours and a half was 3%.

(2) Capture test The above-mentioned mushroom (mushroom) cultivation site (area: 87 m ² , two sets of three-stage cultivation floors (one set of 20 m ² ) installed) was placed at a height of 1.5 m of the central passageway. The apparatus was installed, and the number of flying pests captured one night after the apparatus was turned on was examined. As a result, it was found that about 100 Bombyx mori was captured on the adhesive capture sheet. In addition, as a control test, the same test was performed without turning on the power of the apparatus, and as a result, the number of Acacia catechus captured was several.

(3) Deodorant Deodorizing Test In the trapping test of (2), the apparatus in which about 100 horse chestnuts were captured was put in a closed box of 2000 L capacity in the captured state, and sealed at room temperature for 3 days. Saved. After storage, 1
No monitor put his nose on the small window (30 mm × 30 mm) of the box, and evaluated the dead odor and odor of the insects according to the following evaluation criteria, and determined the level average value.

[Evaluation Criteria] Level 0: No smell Level 1: Slight smell Level 2: Feel smell Level 3: Smell quite smell Level 4: Smell is too tight

Thereafter, the box was closed again, the chemical lamp was turned on, and after 4 hours, the average level of the dead odor in the box was determined by the same procedure as the first.

As a result, the level average value after storage for 3 days in a closed state was 3.1, and the level average value 4 hours after turning on the lamp was 1.4.

Example 2 A device having the structure shown in FIG. 2 was prepared as an apparatus for maintaining a pest capturing and sanitary environment. As shown in the figure, a suction machine 4 having suction ports 9 at both ends of a cylindrical chemical lamp 1 as a light source is arranged, and about 20 mm along the axial direction of the chemical lamp 1.
And a transparent photocatalyst-carrying molded product 3 is laminated on the reflector 5 with the photocatalyst-carrying surface facing the lamp. FIG. 3 shows the relationship between the chemical lamp 1 and the arcuate reflector 5 on which the photocatalyst-carrying molded product 3 is laminated.
It is the schematic of a line cross section. The sucked captured pests are collected in a pest capturing section (not shown).

The chemical lamp 1 as a light source is manufactured by Toshiba Corporation (product number: FL 10BL, maximum wavelength: 369 n).
m), a 1200 W vacuum cleaner (manufactured by Hitachi, Ltd., product number: CV-W53) was used as the suction machine 4. The photocatalyst-carrying molded product 3 is a sheet (3) in which titanium oxide having an average particle diameter of 7 nm is carried on the surface of a PET sheet at a carrying amount of 5 g / m ^2.
0 cm × 5 cm). The reflecting plate 5 used an aluminum foil.

Next, the following three tests were performed using this apparatus.

(1) Deodorizing Test Using Acetaldehyde The half-life of the acetaldehyde concentration was examined in the same manner as in Example 1, and the half-life was found to be 15 hours. In the control experiment, the reduction rate of the concentration after 15 hours was 3%.

(2) Capture test The number of flying pests captured one night after the power was turned on was determined in the same manner as in Example 1. As a result, it was found that the number of flying pests was about 500. The number of captured animals in the control experiment was several.

(3) Dead odor deodorizing test In the same manner as in Example 1, when a device in which about 500 horse chestnuts were captured was closed and stored for 3 days, insect dead odor (mainly from the suction port) The average level of the odor) and the level average one day after the lighting of the chemical lamp were examined. As a result, the level average after sealed storage for three days was 3.6, and the level average one day after the lamp was turned on was 2.9.

Example 3 A device having the structure shown in FIG. 4 was manufactured as an apparatus for maintaining a pest capturing and sanitary environment. As shown in the drawing, a gap of about 20 mm from the chemical lamp 1 is provided along the axial direction of the cylindrical chemical lamp 1 as a light source, and a cylindrical transparent lamp having an adhesive layer and a photocatalyst supporting layer is provided. The polymer sheet 6 is configured such that the photocatalyst supporting surface faces the lamp.

The chemical lamp 1 as a light source is manufactured by Toshiba Corporation (product number: FL 10BL, maximum wavelength: 369 n).
m) was used. The polymer sheet 6 having the pressure-sensitive adhesive layer and the photocatalyst supporting layer is obtained by applying a butyl rubber-based pressure-sensitive adhesive to one surface of a sheet made of PET and applying an average particle diameter of 7 nm to the other surface.
(30 cm × 20 cm) on which titanium oxide was supported at a supporting amount of 3 g / m ² .

Next, the following three tests were performed using this apparatus.

(1) Deodorizing Test Using Acetaldehyde The half-life of the acetaldehyde concentration was examined in the same manner as in Example 1, and the half-life was found to be 15 hours. In the control experiment, the reduction rate of the concentration after 15 hours was 3%.

(2) Capture test The number of flying pests captured one night after the power of the apparatus was turned on was examined in the same manner as in Example 1. As a result, it was found that the number of flying flies were about 200. In the control experiment,
Not captured at all.

(3) Dead odor deodorizing test In the same manner as in Example 1, the average value of the insect dead odor level and the chemical level were measured when the device in which about 200 horse chestnut blowflies were captured was closed and stored for 3 days. The level average value one day after the lamp was turned on was examined. As a result, the average level after closed storage for 3 days was 3.2, and the average level one day after the lamp was turned on was 2.7.

Example 4 A device having the structure shown in FIG. 5 was manufactured as an apparatus for maintaining a pest capturing and sanitary environment. As shown in the figure, a cylindrical, mesh-shaped photocatalyst-carrying molded product 3 (shown in the figure) is provided along the axial direction of a cylindrical chemical lamp 1 as a light source, with a gap of about 25 mm from the chemical lamp 1 around the periphery. ), And a cylindrical electric shock grid machine 7 is arranged outside the photocatalyst-carrying molded article 3 so as to surround the molded article. A gap between the mesh-shaped photocatalyst-carrying molded product 3 and the electric shock grid machine 7 was about 5 mm, and a receiving tray 8 for collecting falling pests was provided below the electric shock grid machine 7.

The chemical lamp 1 as a light source is manufactured by Toshiba Corporation (product number: FL 10BL, maximum wavelength: 369 n).
m), and the electric shock grid machine 7 (manufactured by Sun Co., Ltd.) (product number: BK-045) was used. The photocatalyst-carrying molded article 3 is
The surface of a glass cloth mesh having a roughness of 2 mm × 2 mm is coated with PTFE, and the surface has an average particle diameter of 7 n.
m (16 cm × 16 cm, thickness: 0.5 mm, porosity: 30 g / m ²⁾
53%).

Next, the following three tests were performed using this apparatus.

(1) Deodorizing Test Using Acetaldehyde The half-life of the acetaldehyde concentration was examined in the same manner as in Example 1, and the half-life was 1 hour and a half. In the control experiment, no decrease in the concentration was observed even after one and a half hours.

(2) Capture Test The number of flying insect pests captured one night after the power was turned on was determined in the same manner as in Example 1. As a result, it was found that the number of flying pests was about 50. In the control experiment, no fish were captured.

(3) Dead odor deodorization test In the same manner as in Example 1, the average level of insect dead odor and odor when insects of about 50 horse chestnuts were captured and the saucer were closed and stored for 3 days. The average level of the level 4 hours after the lighting of the chemical lamp was examined. As a result, the average level after closed storage for 3 days was 2.8, 4 from the lighting of the lamp.
The average level after time was 0.7.

[0050]

Industrial Applicability According to the present invention, it is possible to effectively capture and kill light-induced flying pests, and to reduce odors such as dead odors generated from the captured insect pests, thereby improving the sanitary environment. It has become possible to provide a pest catching and sanitary environment maintaining device that can be maintained well.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an outline of an embodiment of a pest catching and sanitary environment maintaining apparatus of the present invention.

FIG. 2 is a perspective view schematically showing an embodiment of the apparatus for maintaining a pest capturing and sanitary environment of the present invention.

FIG. 3 is a schematic view of a cross section taken along line XX of the apparatus of FIG. 2;

FIG. 4 is a perspective view schematically showing an embodiment of the apparatus for maintaining a pest capturing and sanitary environment of the present invention.

FIG. 5 is a perspective view schematically showing an embodiment of the apparatus for maintaining a sanitary environment for insect pests of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chemical lamp 2 Adhesion capture sheet 3 Photocatalyst carrying molded article 4 Suction machine 5 Reflector 6 Polymer sheet having an adhesive layer and a photocatalyst carrying layer 7 Electric shock grid machine 8 Receiving tray 9 Suction port

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shiro Soda 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Nitto Denko Corporation (72) Inventor Susumu Sato 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Nitto Denko Co., Ltd. F-term (reference) 2B121 AA12 BA03 BA38 CC40 DA05 DA15 DA36 DA37 FA15 4C080 AA07 AA10 BB02 BB07 CC12 HH05 KK10 MM02 QQ11 QQ20

Claims (5)

[Claims] 1. A light source having a wavelength of 300 to 600 nm, a pest light attracting trap disposed around the light source, and a photocatalyst-carrying molded article carrying a photocatalyst excited by the light source are brought close to the pest light attracting trap. A pest-capturing hygiene environment maintenance device, characterized in that the device is provided with: 2. The apparatus for maintaining a sanitary environment for insect pests according to claim 1, wherein the insect pest attracting trap is an adhesive trapping sheet coated with an adhesive, an electric shock trap or a suction trap. 3. The photocatalyst-carrying molded article is a mesh-shaped molded article or a transparent sheet carrying a photocatalyst.
The pest catching and sanitary environment maintaining device described in the above. 4. The apparatus for maintaining a sanitary environment for insect pest capture according to claim 1, wherein a photocatalyst is carried on the back surface of the adhesive capture sheet coated with the adhesive. 5. A captured pest, wherein a pest is captured by light attraction using a light source having a wavelength of 300 to 600 nm, and a bad odor derived from the captured pest is deodorized by a photocatalyst excited by the light source. Deodorant method.