KR20030075481A - Insecticide composition for an acarus and sprayer - Google Patents

Abstract

PURPOSE: A pesticide composition containing one or more acaricidal compositions and a solvent having good volatility is provided. The composition has excellent volatility and does not leave non-tacky and slippery sprayed portion after spraying. A spray device has a good structure to be sprayed onto a house dust mite habitat such as a mattress or a cushion. CONSTITUTION: A pesticide composition for killing house dust mites comprises: one or more acaricidal compositions selected from a compound such as phenothrin, phthalthrin, permethrin, resmethrin, IBTE, DEET, benzyl benzoate, phenyl benzoate or the like and natural products such as mustard extract, Wasabia koreana extract, Cinnamomi Cortex extract, green onion extract or the like; and 5% or more weight of a solvent having good volatility such as methanol and ethanol. A spray device(1) contains three or more orifices(2).

Description

Insecticide composition for an acarus and sprayer

The present invention relates to a house dust mite insecticide composition and a spraying device, and more particularly, insecticide containing at least one selected from pyrethroid insecticides and natural insecticides and at least one selected from highly volatile substances as a solvent. It relates to a composition and an injection mechanism that can easily spray it.

Conventionally, the damage caused by ticks in house dust has been increasing, which may be due to various factors including the recent airtightness of the residential environment, air pollution, and westernization of lifestyle. Currently, the most widely distributed dust mites in Korea are Dermatophagoides and Dermatofarinae , which are known to be the most important allergens for children and adults with asthma, allergic rhinitis and atopic dermatitis. It is also known as a species widely distributed in Korea.

In the past, in order to control the ticks in the home, beddings made of natural or synthetic fibers were dried by daylight, washed with hot water of 50 ^° C. or more for 2 hours, or insecticides were used. However, it is practically impossible to carry all heavy items to the outside and dry them, and things such as mattresses and sofas are bulky and cannot be washed with hot water. In addition, the use of the insecticide was difficult to dry after spraying the drug, there was a problem such as sticky surface, staining of the fiber.

In addition, since the conventional insecticide method is to apply the insecticide to the surface of the fiber in most cases, the penetration of the drug to the fiber is insufficient expansion effect did not exhibit sufficient control effect, even spraying the surface even one surface spray spraying a large area It takes a long time to be treated, and the conventional spray needle that treats the inside of the fiber has a problem in terms of stability due to its sharp edge, and the shape and height of the spray hole of the spray needle have a problem of poor drug spreadability. .

Therefore, an object of the present invention is to provide a control composition that improves the volatility in the control component for controlling pests, mites and the like, and after the injection of the control component, the solvent is volatilized quickly so that only the control component remains to remove the sticky feeling after use.

Another object of the present invention is to control the large area of the surface of the fiber can be mites quickly obtained in the control composition obtained as described above, evenly spread the drug even inside the fiber can exhibit a more excellent control effect It is to provide an injection mechanism for spraying the control composition.

1 is an enlarged cross-sectional view of a spray nozzle 1 according to an embodiment of the present invention,

Fig. 2 is an enlarged view of the state where the jet needle is attached to the spray jet port 1 and the jet needle in accordance with another embodiment of the present invention.

To control the pests, mites and the like of the present invention for achieving the above object is a compound such as phenothrin, phthaltrin, permethrin, resmetrin, IBTE, DEET, benzoic acid benzyl, benzoic acid phenyl, mustard extract, horseradish extract It is characterized in that it is formulated with at least 5% by weight or more of a highly volatile solvent with one or more mite control ingredients selected from natural products such as cinnamon extract, leek extract.

In the present invention, the conventional phenyl salicylate, benzyl salicylate,, onion extract, red pepper extract, etc. as the mite control component is not preferable because the mite control ability.

In another configuration of the present invention, methanol and ethanol may be preferably used as a highly volatile solvent used with the mite control component.

Other solvents, such as hexane, normal paraffin, isoparaffin, kerosene, ethylene glycol, ether derivatives, ester derivatives, and water, are undesirable due to the long volatilization time, and carbon tetrachloride, chloroform, dichloroethane The volatilization time is good, but the control effect is poor, which is not preferable.

In addition, the anti-inflammatory agents such as deodorant extracts, cyclodextrins, inorganic ions, and polymer electrolytes, antibacterial agents, and potentiometers such as piperonyl butoxide and MGK264 (Sumitomosa) can be dissolved in the control ingredients. It can also emulsify using.

In the present invention, as the spray agent, LPG, n-butane, isobutane, propane, carbon dioxide, freon, HCFC, HFC, nitrogen, oxygen, or the like may be used alone or in combination.

According to another aspect of the present invention, an injection mechanism for filling and injecting a control composition prepared according to the above-described configuration of the present invention includes a spray hole 2 in the injection hole 1 in at least one injection hole for spraying 1. It is characterized by three or more formed.

Another configuration of the present invention is an injection mechanism for filling and injecting the control composition prepared according to the configuration of the present invention, wherein the end surface is curved at the end of the spray hole (2) of the conventional spray nozzle (1) Forming at least one needle needle (3) of a predetermined length having at least one atomizing hole (4), the diameter of the atomizing hole (4) having an inner diameter of 0.01-2.0 mm and an outer diameter of 0.01- It is characterized by 2.0mm.

Preferably, the spray needle 3 has a length of 2 to 5 cm, the spray pore 4 is formed between about 1 to 2 cm from the end of the spray needle (3).

On the other hand, the spray needle (3) has a structure that can be folded under the spray hole (2) as shown in Figure 2, or has a separate connection structure from the spray hole is configured to be connected to this connection structure It can also be configured without needle.

As described above, the spray control device for tick control in the present invention has a spray nozzle (1) having at least three spray holes (2) capable of treating the surface to widen the spray area, and in another configuration The curved needled spray needle 3 has at least one needle shape, and the spray needle 3 has at least one spray hole 4, and the diameter of each spray hole 4 has an internal diameter. 0.01-2.0mm, outer diameter is 0.01-2.0mm, and the inner diameter and the outer diameter can be different in size. In this case, if the inner diameter is smaller than the outer diameter, the treatment area per spray hole will be wider but it will not spread relatively far. If the outer diameter is smaller than the inner diameter, the processing area is narrowed but spread relatively far. In addition, by placing the spray hole (4) several at different heights at the ends of the spray needle (3), evenly spread the drug evenly.

Filling the control composition prepared according to the present invention in the injection mechanism of the present invention configured as described above can easily spray the control composition into the fiber, such as mattress, sofa.

The present invention constituted as described above is a solvent for dissolving the control component is excellent in volatility and volatilized within a short time after spraying, the spraying site is not slippery or sticky, the large area of the surface of the fiber is quickly processed, the end surface is curved It is safe to use the spray needle (3), by controlling the inner and outer diameter of the spray pore (4) can effectively control the tick even inside the fibers, such as mattresses, sofas.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Tick insecticide

Volatilisation rate and aerosol product treatment by solvent of the present invention was compared to tick pesticide rate.

Mite capture test Shale (diameter 7 cm), evenly sprayed 1g (about 1000 mice / g) dermatopagoides saturated medium, and stored for 3 days at 25 ^° C temperature, 80% RH humidity.

Then, spray the test agent on the surface for 30 seconds at a distance of 30 cm (phenotrine 0.266 g, phthaline 0.48 g, solvent 96 mL, liquefied petroleum gas 224 mL) and placed on an automatic weighing device at a temperature of 25 ^° C. and a humidity of 80% RH. Store on condition. After 95% of the weight increase after the drug treatment occurs when the time is recorded by measuring the solvent volatilization time. The number of live ticks is measured 1, 7 and 14 days after treatment. The results are shown in Table 1.

Table 1.

Experiment number solvent Solvent volatilization time Live tick number 1 day 7 days 14 days One ethanol 5 minutes 30 seconds 0 0 0 2 Methanol 4 minute, 22 seconds 0 0 0 3 water 42 minutes 47 seconds 0 0 0 4 Ethylene glycol 35 minutes 21 seconds 0 0 0 5 Kerosine 1 hour 16 minutes 0 0 0 6 Isoparaffin 1 hour 20 minutes 0 0 0 7 Normal paraffin 1 hours 0 0 0 8 chloroform 3 minutes 2 seconds 13 42 35 9 Carbon tetrachloride 2 minutes 58 seconds 28 68 58 10 Dichloroethane 3 minute, 1 second 19 56 40

As shown in Table 1 above, ethanol, methanol, chloroform, carbon tetrachloride and dichloroethane can be used based on solvent volatilization time of 10 minutes or less, but the actual chloroform, carbon tetrachloride and dichloroethane have a relatively low pesticide rate and are used as household insecticides. It is considered to be the most suitable to use ethanol because it has high human toxicity.

Example 2. Insecticidal test according to insecticide

House dust mite insecticidal rate of the pesticides of the present invention was compared.

Mite capture test Shale (diameter 7 cm), evenly sprayed 1g (about 1000 mice / g) dermatopagoides saturated medium, and stored for 3 days at 25 ^° C temperature, 80% RH humidity.

Then, spray the drug containing about 0.7g of pesticide components at a distance of 30cm on the surface for 2 seconds (ethanol 96mL, liquefied petroleum gas 224mL) and stored under the condition of temperature 25 ^° C humidity 80% RH. The number of live ticks is measured 12, 1, 7, and 14 days after treatment. The results are shown in Table 2.

Table 2.

Elapsed time 12 hours 1 day 7 days 14 days Phenotrin 0 0 0 0 Permethrin 0 0 0 0 Resmetrin 0 0 0 0 Phenyl salicylate 18 21 42 59 Salicylic Acid Benzyl 37 31 48 51 IBTE 57 52 32 0 DEET 62 48 27 0 Benzoic acid benzyl 0 0 0 0 Phenyl Benzoate 0 0 0 0 Phthaltrin 0 0 0 0 Mustard Extract 0 0 0 0 Wasabi Extract 0 0 0 0 Cinnamon Extract 0 0 0 0 Onion Extract 52 39 34 48 Chilli Extract 125 85 62 133 Green onion extract 15 8 13 24

As shown in Table 2, insecticides with good fast-acting and long-lasting properties are considered to be phenotrin, permethrin, resmethrin, benzoic benzoate, phenyl benzoate, phthalate, mustard extract, wasabi extract, and cinnamon extract. . In addition, IBTE and DEET have good housekeeping and avoidance effects as the number of house dust mites gradually decreases over time.

Examples 3 to 5 and Comparative Examples 1 to 7. Insecticide Area Test by Number of Spray Holes (2)

When the control composition of the present invention was treated with a bed mattress or the like, the treatment area for the number of spray holes 2 of the injection mechanism was investigated.

At this time, a small amount of blue dye was added to the injector (1:10 injection nozzles (1), respectively), as shown in Table 3 below. After filling the bed (200cm X 100cm) and sprayed for 2 seconds at a distance of 30cm for 20 seconds, the diameter of the treated area was measured when the solvent dries.

The results are shown in Table 3.

Table 3.

Comparative Example 1 Comparative Example 2 Example 3 Example 4 Example 5 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Number of spray holes (2) One 2 3 4 5 6 7 8 9 10 Treatment area diameter (cm) 5.6 8.5 10.3 12.6 13.8 14.6 15.5 15.9 16.2 16.4

As shown in Table 3 above, when the number of the spray holes 2 increases from 1 to 5, the treatment area increases rapidly, and from 6, the increase rate gradually decreases.

Examples 6-9, Comparative Examples 8-13. Spray pore (4) location, treatment area and insecticide test

When the control composition of the present invention was treated in a bed mattress (thickness 3 cm) and the like, the treatment area when the position and shape of the spray pore 4 of the jetting needle was as shown in Table 4 below was investigated.

At this time, the number and position of spray pore (4) by distance from the tip of the saliva were adjusted by using the disclosed chemicals (phenotrin 0.266 g, phthaline 0.48 g, ethanol 96 mL, liquefied petroleum gas 224 mL) with a small amount of blue dye added. After 20 minutes of spraying for 2 seconds, the solvent dried, and the vertical, horizontal diameter and visibility of the treated area were measured.

Visibility was evenly sprayed on a bed surface with 1 g (approximately 1000 mice / g) of Dermatopagoide saturation medium on a tick catching chale (directly 7 cm), and stored at a temperature of 25 ^° C. and a humidity of 80% RH for 3 days. do.

Thereafter, using a spraying pore of the injection needle, the drug containing about 0.7 g of the pesticidal component is sprayed for 2 seconds (ethanol 96mL, liquefied petroleum gas 224mL) and stored under the condition of a temperature of 25 ^° C. and a humidity of 80% RH. After 1 day of treatment, the bed is vertically cut at a distance of 4 cm from the place where the needle is stabbed, and the number of ticks visible is measured.

The results are shown in Table 4.

Table 4.

Needle length Number of spray pore (4) Spray Pore (4) Size (Inner / Outer) Spray pore (4) position Angle between spray holes (4) Vertical spread diameter Horizontal spread direct Visibility Comparative Example 8 3 cm 2 0.05 / 0.05 2 / 1cm 180 ^o 1.6 cm 3.0 cm 58 Comparative Example 9 3 cm 3 0.05 / 0.05 3 / 1cm 120 ^o 1.8 cm 3.2 cm 21 Comparative Example 10 3 cm 4 0.05 / 0.05 4 / 1cm 90 ^o 1.8 cm 3.3 cm 11 Example 6 3 cm 4 0.05 / 0.05 2 / 1cm, 2 / 1.5cm 90 ^o 2.5cm 3.2 cm 2 Example 7 3 cm 4 0.06 / 0.04 4 / 1cm 90 ^o 2.3cm 3.5 cm 0 Comparative Example 11 2.5cm 2 0.05 / 0.05 2 / 1cm 180 ^o 1.6 cm 3.0 cm 67 Comparative Example 12 2.5cm 3 0.05 / 0.05 3 / 1cm 120 ^o 1.7 cm 3.2 cm 35 Comparative Example 13 2.5cm 4 0.05 / 0.05 4 / 1cm 90 ^o 1.8 cm 3.3 cm 19 Example 8 2.5cm 4 0.05 / 0.05 2 / 1cm, 2 / 1.5cm 90 ^o 2.7 cm 3.3 cm 5 Example 9 2.5cm 4 0.06 / 0.04 4 / 1cm 90 ^o 2.6 cm 3.6 cm 0

As shown in Table 4, in Examples 6 and 8, when the height of the spray pore 4 was divided into 1 cm and 1.5 cm, the vertical spreading diameter was improved and the visibility was lowered. In the case of 2 and 4, when the outer diameter of the spraying pore 4 is smaller than the inner diameter, the horizontal spreading diameter is increased, so the visibility is judged to be lowered.

The present invention constituted as described above has excellent volatility, so that the spraying part is not slippery or sticky after spraying, and the spraying device according to the present invention can quickly process a large area of the surface of the fiber, and the end surface is curved. It is safe to use the spray needle (3), it is a useful invention that can effectively control the tick even inside the fibers, such as mattresses, sofas by adjusting the inner and outer diameter of the spray hole (4).

Claims (4)

One or more mite control ingredients selected from natural compounds such as phenotrine, phthaltrin, permethrin, resmethrin, IBTE, DEET, benzoic acid benzyl, benzoic acid phenyl, mustard extract, horseradish extract, cinnamon extract, and leek extract A control composition characterized in that the composition is formulated with at least 5% by weight or more of a highly volatile solvent. The control composition according to claim 1, wherein the highly volatile solvent used with the tick control component is methanol or ethanol. In a conventional spray nozzle (1), at least three spray holes (2) are formed in the injection hole (1), the injection mechanism for filling and spraying the control composition of claim 1 to this. At least one or more needle-shaped spray needles 3 having a predetermined length having a curved surface and having at least one or more spray holes 4 are formed in the spray hole 2 of the conventional spray nozzle 1, and The diameter of the spray pore (4) is characterized in that the inner diameter is 0.01-2.0mm, the outer diameter is 0.01-2.0mm and the injection mechanism for filling and spraying the control composition of claim 1 to this.