JPH0340379Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention relates to an aerosol product suitable for exterminating pests on tatami mats. [Prior art and its problems] Conventionally, in order to exterminate tatami mats, pests, and microorganisms, the tatami mats were raised and treated outdoors in direct sunlight without using chemicals, or chemicals such as insecticidal powders were used. Because insecticidal liquids were simply sprayed or applied onto the tatami mats, the insecticides did not fully penetrate into the tatami mats, resulting in insufficient extermination effects. It is also possible to insert the chemicals into the tatami mats and spray them, but as the permeation and diffusion of the chemicals within the tatami mats is extremely insufficient, a satisfactory control effect cannot be achieved, and a product suitable for this type of use is desperately needed. It has been. [Problems to be Solved by the Invention] The present invention was completed as a result of intensive research aimed at improving the drawbacks of the prior art. [Means for solving the problem] In other words, the present invention is an aerosol for exterminating pests and microorganisms on tatami mats, which requires a tubular body with a nearly blind tip to be attached vertically to an aerosol container. The product is characterized in that the aerosol container is filled with a pesticidal agent containing a propellant made of liquefied gas and an active ingredient solution whose vapor pressure is less than the injection pressure at room temperature, and on the circumferential surface of the body of the tubular body. An aerosol characterized in that the nozzle holes are arranged in at least two or more stages in the longitudinal direction of the tubular body, the nozzle holes in each stage are orthogonal to each other, and the nozzle holes are provided at positions corresponding to the respective layers constituting the tatami mat. Regarding the product. [Operations and Examples] Since the present invention has the above-mentioned structure, whenever it is necessary to treat the tatami with a drug, the tubular body (hereinafter referred to as the main body) is inserted into the tatami and the drug is injected. Not only can the tatami be treated very easily while the tatami is still laid without having to raise it, but it can also be used to treat the drug diffusion state within the tatami with a single injection. Moreover, because the nozzle holes are set according to the internal structure of the tatami mat (JIS standard), the chemical penetrates along the grain of the straw more than expected, making it easier to use simply by using a normal nozzle. It is characterized by the fact that it provides a much more uniform distribution of the drug than when it is injected directly, and also leaves no sting marks on the main body when it is pulled out. Here, the internal structure of a tatami mat defined in the JIS standard refers to the internal structure of a tatami mat, such as a six-layer tatami floor or a four-layer tatami floor, as defined in JIS A 5901. In the present invention, the chemicals used for treating tatami mats include at least one or more of the various chemicals normally used for this type of application. As an insecticide, dimethyl (3-methyl-4
-nitrophenyl) thiophosphate (hereinafter referred to as fenitrothion), 0,0-dimethyl-0
-[3-methyl-4-methylthio)phenyl]thiophosphate, (2-isopropyl-4-methylpyrimidyl-6)-diethylthiophosphate,
Dimethyl dicarbethoxyethyl dithiophosphate, dimethyl dichlorovinyl phosphate, dl-
3-allyl-2-methyl-4-oxo-2-cyclopentenyl dl-cis/trans-chrysanthemate (hereinafter referred to as allethrin), (1,3,4,
5,6,7-hexahydro-1,3-dioxo-
2-isoindolyl)methyl dl-cis/trans-chrysanthemate (hereinafter referred to as phthalthrin), (5-benzyl-3-furyl)methyl dl-cis/trans-chrysanthemate (hereinafter referred to as resmethrin), Enoxybenzyl dl-cis/trans-3-(2,2-dichlorovinyl)-
2,2-dimethyl-1-cyclopropanecarboxylate (hereinafter referred to as permethrin), 3-phenoxybenzyl d-cis/trans-chrysanthemate (hereinafter referred to as phenothrin), 1-ethynyl-2-methyl-2 -pentenyl 2,2,
3,3-tetramethylcyclopropanecarboxylate (hereinafter referred to as empensuline), 1-ethynyl-2-methyl-2-pentenyl 2,2-dimethyl-3-(2',2'-diclobinyl)-cyclopropane-1 -carboxylate, 1-ethynyl-
2-Methyl-2-pentenyl 2,2-dimethyl-
3-(2'-methyl-1'-propenyl)-cyclopropane-1-carboxylate, 2-isopropoxyphenyl-N-methylcarbamate, 1-naphthyl-N-methylcarbamate; 3-methyl as acaricide -1,5-bis(2,4-xylyl)
-1,3,5-triazapenta-1,4-diene, 2,4-dinitro-6-sec-butylphenyl dimethyl acrylate, 6-methylquinoxaline-2,3-dithiocarbonate, bis(chlorphenyl)trichloroethanol , ethyl 4,4'-dichlorobenzylate, 1,2,4,5,6,
7,8,8-octachlor-2,3,3a,4,
Examples include 7,7a-hexahydro-4,7-methanoindene. By using the above-mentioned agents as a single agent or a mixture, it is possible to effectively control insects such as grasshoppers, wasps, cockroaches, bed bugs, termites, black ants, and mites such as white mites, claw mites, dust mites, and lice mites. sell. As a fungicide, 2,4,4'-trichloro-2'-hydroxydiphenyl ether, 2,3,5,6-tetrachloro-4(methylsulfonyl)pyridine, alkylbenzylmethylammonium chloride, benzylmethyl {2-[2-(P-1,1,3,3-
Tetramethylbutylphenoxy)ethoxy]ethyl}ammonium chloride, 4-isopropyltropolone, N-dimethyl-N-phenyl-
N′-(fluoromethylthio)sulfonamide,
2-(4′-thiazolyl)benzimidazole, N
-(Fluorodichloromethylthithio)-phthalimide, 6-acetoxy-2,4-dimethyl-m-
By using dioxin or the like, it is effective to control molds such as Aspergillus, Penicillium, and Chaetomium. The pest and rodent repellents include 2,3,4,5-bis(Δ ₂ -butylene)-tetrahydrofurfural, N,N-diethyl-meta-toluamide, di-n-propylisosine. Colomate, di-normal-butyl succinate, 2-hydroxyethyloctylsulfite, 2-t-butyl-4-hydroxyanisole, 3-t-butyl-4-hydroxyanisole, cycloheximide, β-nitrostyrene cyanoacrylonitrile , tributyltin chloride,
Trinitrobenzene-aniline complex, naphthalene; deodorants include lauric acid methacrylate; aromatic agents include rush essential oil components, citronella, lemon, lemongrass, orange, eucalyptus, lavender, and the like. Various additives such as potency enhancers and desiccants (such as superabsorbent resins) may be used in the above-mentioned drugs as necessary. In the present invention, the shape of the main body is that the tip part is almost blind-shaped, and the nozzle holes are provided on the circumferential surface of the body of the main body in at least two stages in the longitudinal direction of the main body, and the nozzle holes in each stage are orthogonal to each other. The nozzle holes are located at positions corresponding to each layer that makes up the tatami mat, and the shape is such that the tip of the body can be easily pierced into the tatami mat from the front, back, or side. If available, there are no restrictions on length or size (width), but the length is preferably 4.3 to 4.7 cm in accordance with the tatami standard (5 cm thickness), and the thickness is such that it will not leave puncture marks on the tatami when pulled out. It can be used as long as it is of a certain degree. Furthermore, the main body may be telescopic, bendable (including those having a rubber tube in the middle), detachable, removable, freely rotatable in the axial direction, or may be composed of a plurality of bodies. Materials that are compatible with these forms can be appropriately selected and used. By making it rotatable as described above, the position of the nozzle hole can be appropriately changed and used, which is advantageous because it enables spraying over a wide range. Furthermore, a fitting part for the push button may be provided at the base end of the main body, so that when using an aerosol, for example, it can be easily set by simply fitting it into an existing push button or jet tube. Although this is advantageous, it is also possible to provide a push button at the proximal end of the main body. The area of the nozzle hole provided in the main body may be the same as or smaller than the inner diameter of the main body, and the nozzle hole diameter is usually in the range of 0.1 to 1.0 mm, preferably 0.3 to 1.0 mm.
0.6mm, and if a fitting part or push button is provided as described above, the nozzle hole diameter of the push button ≧ the inner diameter of the main body ≧
It is advantageous to establish a relationship between the diameters of the nozzle holes in the main body because the spray condition will be good. However, if more uniformity is required in a weak spray state, this does not particularly apply. The number of nozzle holes in the nozzle is determined from the above relationship. The nozzle holes are provided in at least two or more stages in the longitudinal direction of the main body on the outer circumferential surface of the body, with the nozzle holes in each stage orthogonal to each other, and at positions corresponding to the respective layers constituting the tatami mat. In this case, you can process the tatami with just one touch. At this time, for example, the third a
By arranging the injection holes in a staggered manner as shown in the figure, it is advantageous because a wider range of tatami mats can be treated. In the present invention, the injection mechanism to be applied to the main body is one that is used for this type of application.
Any of these can be used, and for example, an aerosol type, a type using various pumps, a type using a cylinder, a type using a compressor, etc. can be used in appropriate combination. When using the above-mentioned cylinder, the pressure is quite high, so it is used by attaching it to a suitable spray gun. Other suitable auxiliary means may be adopted for the main body, for example, the tip of the main body can be attached and detached at an appropriate position in the longitudinal direction of the main body (of course, the proximal end is also possible) for safety when not in use. You can replace the top and bottom or left and right, or have a stopper on the main body that can slide up and down or left and right.When in use, it is used to adjust the degree of entry of the main body into the tatami mat, and when not in use, it is used to adjust the degree of entry of the main body into the tatami mat. By shifting the stopper toward the tip, stopping when the tip is no longer visible, and fixing the main body to the body with a set screw, the tip of the main body can be protected and injuries caused by misuse can be avoided (see Section 4). (see figure). In addition, the tubular body can be stored in the container so that it can be moved in and out, and a part of the container is retracted, so that the tubular body can be used.When not in use, the main body is stored in the container. Although it is safe, the container may be equipped with a suitable stopper just to be safe. Further, instead of housing the body in the container, the body itself may be used in combination with, for example, a bellows-shaped cover and a stopper for preventing the cover from shrinking. In the present invention, the sprayer as one of the spray mechanisms described above may be an automatic spray type with an intermittent valve. In this case, if you set the main body of the sprayer toward the area where cockroaches are infested, such as the gap behind the tatami mat, the aerosol will be automatically and intermittently applied to the area where cockroaches are infested. can be injected into. In the present invention, the hole diameters of the injection hole of the main body, the injection hole of the push button, and the valve stem are in the range of 0.3 to 0.6 mm, and the hole diameter of the injection valve housing and the hole diameter of the vapor tap are in the range of 0.3 to 0.5 mm. can be,
Further, it is possible to adopt a configuration in which the difference between the hole diameter of at least one selected from the housing of the injection valve and the dip tube and the hole diameter of the vapor tap is within 0.1 mm. In this case,
As the filling liquid, one can advantageously be used which contains 30 to 60% by volume of the active ingredient solution when the active ingredient solution and propellant are combined. In aerosols that are normally used upright, the hole diameter of this housing is 0.7 to 1.5 mm, the diameter of the dip tube is 1 to 3.5 mm, and the hole diameter of the vapor tap is about 0.25 to 0.4 mm.
The difference greatly exceeds 0.1 mm, and if this is used in an inverted position, a large amount of propellant will be sprayed, and the ratio with the active ingredient solution in the aerosol container will be disrupted. By setting the amount within the range, for example, the efficacy of insecticides will be uniform, and the propellant will not run out first and only the active ingredient solution will remain without being sprayed.
There is an advantage that the injection amount per unit time for upright and inverted positions can be made almost the same. The active ingredient solution referred to in the present invention is a solvent whose vapor pressure is substantially lower than the injection pressure at room temperature, such as hexane, 3,3,4-trimethylnonane, cyclohexane, kerosene,
naphtha, normal paraffin, isoparaffin,
Petroleum solvents such as liquid paraffin; chlorinated hydrocarbons such as dichloroethane and trichloroethane; alcohols and ether derivatives such as ethyl alcohol, isopropyl alcohol, and ethylene glycol; solutions such as water; allethrin, which is the active ingredient mentioned above; Dissolves pyrethroid insecticides such as phthalthrin, permethrin, and phenotrin, organophosphorus insecticides such as DDVP and phenitrothion, synergists such as carbamate insecticides and piperonyl butoxide, and deodorizing or deodorizing agents. or emulsified with a surfactant. Further, as the propellant, for example, fluorocarbons (Freon-11, Freon-112, Freon-113, etc.), liquefied petroleum gas (CO2 _, etc.), dimethyl ether, etc. are used alone or in combination. Next, the aerosol product of the present invention will be explained in more detail based on Examples, but the present invention is not limited to these Examples. Examples 1 to 6 150 ml of a kerosene solution containing 1.33% of the pyrethroid insecticide permethrin and 150 ml of liquefied petroleum gas were filled into an aerosol container with a capacity of 390 ml, and the container was sealed with a valve as shown in Table 1. Invented an aerosol agent for aerosol products. A button was attached to this and the main unit was connected, and a spray test (30 seconds) was conducted.The difference between standing upright and inverted was 10% or less, and 20% or less was acceptable. The results are also listed in Table 1.

[Table] Examples 7 to 10 In Example 1, dimethyl ether was used as the propellant.
An aerosol agent for an aerosol product of the present invention was obtained in the same manner as in Example 1, except that 70 ml and 80 ml of liquefied petroleum gas were used. A spray test was conducted using the obtained aerosol. The results are shown in Table 2.

[Table] An example of the implementation of the aerosol product of the present invention will be explained below. 1a to 1c are partially omitted sectional views showing an example of the aerosol product of the present invention, and Figs. 2a to 2b are partially cutaway front views showing another example of the aerosol product of the present invention, Third
Figures a to 3b are sectional views showing still another example of the aerosol product of the present invention, and Fig. 4 is a partially cutaway front view showing still another example of the aerosol product of the present invention. Figures 1a-1c, Figures 2a-2b, Figures 3a-3
In Figure b and Figure 4, 1 is a main body, and a plurality of nozzle holes 2 are provided on the circumferential surface of the body of the main body 1, and the tip of the main body 1 has a shape that can be pierced into a tatami mat. . When in use, by connecting it to a suitable aerosol, cylinder, or other spraying means, and inserting it into the tatami mat to spray, the drug can be sprayed very well from the nozzle nozzle, as evidenced by the test results described below. It is possible to obtain a very good diffusion distribution state in the tatami mat. In addition, very good results have been obtained in terms of insecticidal effect, and the device has a unique structure as an insecticidal tool for tatami mats. In the present invention, the method and shape of the nozzle holes are as follows:
When providing in multiple stages (Fig. 1c,
(See Figures 2a-2b, 3a-3b, and 4), and in Figure 1c, the lowest nozzle hole 2 is installed to spray diagonally downward, making it possible to spray over a wider area. This is advantageous. Examples of the case where vertical and horizontal slit-like nozzle holes are provided include the aerosol products shown in FIGS. 1b and 2b. Next, the shape of the main body 1 is such that there is a fitting part at the base end of the main body 1 that fits into the push button or nozzle of the sprayer (it is advantageous because it is in the form of a cap, so it can be directly attached to the push button, etc.).
(see Figures 2a-2b) or a push button (see Figures 3a-3b). In this case, in Fig. 3a, when the main body 1 is attached to the stem of a normal sprayer and inserted into the tatami mat,
Since the upper surface 4a of the push button 4 becomes the pressing surface, the surface of the tatami mat can also be used as the surface to be pressed, making it easy to use, and the one in Fig. 3b is advantageous when the sprayer is used with the sprayer lying on its side. It is. Further, the aerosol product shown in FIG. 4 has a tubular cover 5 slidably provided on the body of the main body 1, and has a length reaching the circumferential surface 1a of the main body 1 in the middle of the circumferential surface 5a of the cover 5. A screw 5b is provided so that the cover 5 can be fixed at an appropriate position. In this case, from the lower end of the tubular cover 5 to the main body 1
By tightening the screw 5b when the tip of the nozzle is hidden, the tip of the main body 1 can be protected and the danger from its use can be removed. This is advantageous because the degree of penetration (insertion) can be adjusted. Diffusion tests and insecticidal efficacy tests based on the implementation of the present invention will be explained below. Diffusion test 1 The aerosol product of the present invention shown in Figure 3 (length 4.5 cm, inner diameter 0.75 mm, number of nozzle holes 4 x 4, nozzle hole diameter 0.4 mm) was connected to a 300 ml aerosol and prepared. The drug was injected for 20 seconds from point A shown in Figure 5a on a tatami mat (90 cm x 90 cm x 5 cm) that had been set aside.
The shaded area shows the permeation and diffusion state treated with the drug. After leaving the tatami treated in this way for two days, the areas A1 to 3 and A'1 to A'1 shown in Figure 5b are
3. Cut B1-3, B'1-3 (5cm x 5cm
x 5 cm), crushed into 2-3 mm pieces and mixed well. Five grams of this sample was taken and the concentration of the impregnated insecticidal component was analyzed. The results are shown in Table 3.

[Table] From the results shown in Table 3, it can be seen that when the main body of the present invention shown in FIG. 3a is used, the chemical solution is almost uniformly dispersed in the mat. Diffusion test 2 90cm x 180cm x 5cm as shown in Figure 6a
Prepare a tatami mat, and place the main body (length: 4.5
cm, inner diameter: 0.75 mm, nozzle hole diameter: 0.2 mm x 8 divided into 4 stages, consisting of a combination of jets to the front, back, left side and right side, and directions rotated 45 degrees from this) Attach it to a regular 300ml aerosol and spray it for 20 seconds (10ml) at each point.
A chemical solution was injected into the tatami mat. The results are shown in sections 6c to 6e.
Shown in the figure. Figures 6c to 6e are each a side view of the long side of the tatami mat shown in Figure 6a.
-X' line, Y-Y' line, and Z-Z' line represent cross-sectional views. Note that the shaded area in the figure indicates the part of the tatami mat where the chemical solution was diffused. As is clear from the shaded areas in Figures 6c to 6e, it can be seen that the chemical solution is uniformly diffused in the thickness direction of the tatami mat. Insecticidal efficacy test Main body (length: 5 cm, inner diameter: 0.75 mm, nozzle hole position: 2 x nozzle holes on opposing parts of the nozzle circumference at 5 mm, 15 mm, 25 mm, and 40 mm from the base end)
4. Attach this to a 300ml aerosol (containing 2% by weight of fenitrothion and 0.5% by weight of resmethrin as active ingredients) using a nozzle hole diameter of 0.2mm) and place it in the center of the prepared tatami mat (90cm x 90cm x 5cm).
After injecting the drug (fenitrothion 200 mg and resmethrin 50 mg as active ingredients) for 20 seconds (10 ml), inject each part A, B, and C (10 ml from the center) as shown in Figure 7.
A small piece of 5 cm x 5 cm x 5 cm was cut at the 25 cm, 25 cm, and 45 cm positions), and the cut part was crushed into 2 to 3 mm pieces, and after mixing well, 5 g of the pieces was placed in a shear dish, and 50 adult woolly mites were introduced. This was placed in a thermostatic chamber at a temperature of 20°C and a humidity of 80-85% and cultured for 10 days. After 10 days had passed, 500mg of the solution was taken out and the number of mites inhabiting it was observed using a stereomicroscope. The results are shown in Table 4. The results for the untreated plot are also shown in Table 4 as a control.

【table】

【table】

[Table] Untreated area [Effects of the invention] Since the present invention has the above-mentioned structure, whenever it is necessary to treat tatami with chemicals, all you have to do is insert the main body into the tatami and inject the medicine. Not only can the tatami be treated very easily without having to raise the tatami as it is, or even if the tatami is raised, the drug can be extremely diffused within the tatami with a single injection. Moreover, because the injection holes are arranged to match the internal structure of the tatami, the chemical penetrates along the grain of the straw more than expected, compared to simply spraying with a normal nozzle. This provides a much more uniform distribution of the drug, and also leaves no sting marks on the body when removed.

[Brief explanation of the drawing]

Figures 1a and 1b are partially omitted vertical cross-sectional views showing an example of the aerosol product of the present invention, Figure 2 is a partially cutaway front view showing another example of the aerosol product of the present invention, and Figures 3a and 3b. 4 is a partially cutaway front view showing another example of the aerosol product of the present invention, and FIGS. 5a to 5b and 7 are sectional views showing another example of the aerosol product of the present invention. Figure 6a is a plan view of the 90cm x 90cm x 5cm tatami mat used in the product experiment, Figure 6b is the plan view of the tatami mat used in the experiment of the aerosol product of the present invention, and Figure 6b is the length of the tatami mat shown in Figure 6a. The side views of the side, Figures 6c to 6e, are taken along lines X-X', Y-Y', and Z- of Figure 6b, respectively.
FIG. 3 is a cross-sectional view along the Z′ line. Main symbols in the drawing: 1: Main body, 2: Nozzle hole.

Claims (1)

[Scope of utility model registration request] An aerosol product for exterminating pests and microorganisms on tatami mats, which requires a tubular body with an almost blind-shaped tip to be attached vertically to an aerosol container; The agent is filled with a pest control agent containing an active ingredient solution whose vapor pressure is less than the injection pressure at room temperature, and injection holes are provided in the circumferential surface of the body of the tubular body in at least two or more stages in the longitudinal direction of the tubular body. Furthermore, this aerosol product for tatami treatment is characterized by having the nozzle holes in each stage orthogonally oriented, and furthermore, the nozzle holes are provided at positions corresponding to each layer of the tatami mat.