JPH07206605A - Insect-proofing agent and its production and usage - Google Patents

Abstract

PURPOSE:To obtain an insect-proofing agent to be used in composting garbage using a relevant vessel, and to provide a usage of this agent. CONSTITUTION:This insect-proofing agent can be obtained by blending a specified amount of a cellulose-based compound with an insectproofing agent prepared by adding, as necessary, a small amount of an insecticide to p- dichlorobenzene followed by shaping. This insect-proofing agent is put into a composting vessel and transpiration of the p-dichlorobenzene serving as the main ingredient for controlling insect pests is suppressed to sustain insect- proofing effect for a long period of time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insect repellent for use in composting kitchen garbage and the like, a method for producing the insect repellent, and a method for using the insect repellent.

[0002]

2. Description of the Related Art In connection with reducing the amount of garbage discharged from homes,
Raw garbage such as vegetable scraps and tea leaves from the kitchen, for example, having a diameter of about 70 to 80, is used for home gardening.
A plastic container (hereinafter, simply referred to as "compost container") having a size of about cm is housed and composted. During composting of this garbage, insects fly into the compost container due to its odor, and insects are also generated in the compost container. A shaped object made of an insect repellent is placed on the inside of the lid or other appropriate portion.

A shaped insect repellent which is placed in a compost container for controlling insects coming in and insects generated is
It volatilizes at room temperature and exerts a strong insect repellent effect, and as an insect repellent effect, it has a stronger insect repellent action than camphor and naphthalene.
Paradichlorobenzene, which emits a unique aroma, is used. However, since this paradichlorobenzene is extremely weak in insecticidal activity, for example, organophosphorus insecticides such as trichlorophone, semitrothion, and gillidafenthion, pyrethreuto insecticides such as phthalthrin and permethrin, or carbaryl (carbaryl).
ryl), isprocarb and other small amounts of carbamate insecticides are used in combination with paradichlorobenzene to take measures against insects that invade into compost containers and those larvae that occur. ing.

[0004]

Paradichlorobenzene, which is used to prevent insects from coming in and suppressing the generation of insects caused by fermentation by composting raw garbage, has the effect of achieving the intended purpose to some extent. It is something to demonstrate. However, paradichlorobenzene has a very high volatility of the active ingredient and has a drawback that it sublimates and loses its efficacy in a short time.Therefore, when the excipient of paradichlorobenzene is applied to a compost container, its effect is sustained. Since it has no property, it is necessary to frequently place the paradichlorobenzene excipient in the compost container. Therefore, when composting raw garbage, paying attention to the composting container and adding paradichlorobenzene excipient in a timely manner will easily damage the surrounding environment and increase the cost of insect repellents. It is desired to suppress volatilization of the active ingredient within a range that does not hinder it.

In view of the present circumstances, the present invention can suppress the volatilization of paradichlorobenzene, which is effective as an insect repellent, and can maintain the insect repellent effect for a long period of time, and has an excellent deodorant effect. The present invention provides an insect repellent, a method for producing the insect repellent, and a method for using the insect repellent.

[0006]

In order to achieve the above object, the insect repellent of the present invention is characterized in that it comprises a repellent component comprising paradichlorobenzene and a cellulose compound. .

In the present invention, the cellulosic compound for suppressing the volatilization of paradichlorobenzene having an insect repellent effect and maintaining the long-term efficacy is blended in a predetermined ratio with an insect repellent component mainly comprising paradichlorobenzene. It is a thing. As such a cellulosic compound,
One or more selected from methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and ethyl hydroxyethyl cellulose.

This cellulosic compound is blended with powder of paradichlorobenzene, which is the main component of the insect repellent, in an amount of 0.5 to 5.0% by weight based on 95 to 99.5% by weight of the powder. It is a shape. This shaping can be easily obtained by tableting a mixture of the two powders into a predetermined size and shape with a tableting machine. At that time, if necessary, an organophosphorus insecticide, a pyrethroid insecticide, or a carbamate insecticide may be blended in a predetermined ratio. When the content of the cellulosic compound is less than 0.5% by weight with respect to paradichlorobenzene,
Paradichlorobenzene has a poor transpiration-retarding effect, and even if it is used in an amount of more than 5% by weight, it has no special effect and is economically disadvantageous.

When the above-mentioned insecticide is used, powder of paradichlorobenzene which is the main component of the insect repellent 90 to 98.5.
95 to 99.5% by weight of the insect repellent obtained by adding 5 to 1% by weight of the powder of the insecticide base to 50% by weight of the cellulose compound powder. ˜0.5 wt% is blended and shaped into a predetermined shape. If the amount of this insecticide is less than 1% by weight, the insecticidal effect is poor, and if it is added in excess of 5% by weight, some insecticidal effect can be expected, but it does not always have a good effect on composting in compost containers. Since it does not extend, it is desirable to add 5% by weight or less as much as possible within the range not inhibiting the insecticidal effect.

The insect repellent thus obtained is used by being placed inside a compost container as a shaped article having a predetermined shape. For application to a compost container, for example, an insect repellent shaped product is fixed to the lid of the compost container, or suspended, or fixed to the inner wall of the main body of the compost container, and vaporized paradichlorobenzene vapor is removed. It is used by filling the compost container.

[0011]

The insect repellent of the present invention mixes a small amount of a cellulosic compound with paradichlorobenzene, which is the main component, to appropriately delay the evaporation of paradichlorobenzene and to prevent the insect repellent effect from disappearing over a long period of time. It is possible to exert an odor effect. Its transpiration-retarding effect is that the powder of the cellulosic compound is blended with the powder of paradichlorobenzene, which is the main component of the insect repellent, and the mixture is shaped so that the surface of the paradichlorobenzene powder undergoes adiabatic compression during shaping. It is considered that a part thereof is slightly melted, and the cellulose powder is adhered to and dissolved therein to appropriately coat the surface, thereby appropriately limiting the evaporation of paradichlorobenzene from the surface.

[0012]

EXAMPLES Hereinafter, the insect repellent of the present invention will be described more specifically with reference to Examples and Comparative Examples. Examples 1 to 5 and Comparative Examples 1 and 2 Insect repellents (Examples 1 to 3) obtained by blending powders of paradichlorobenzene with powders of a cellulosic compound to form a predetermined shape, and paradichlorobenzenes. A dry transpiration test was carried out on the insect repellents (Examples 4 and 5) obtained by blending the powder with trichlorofon powder as an insecticidal component and blending this with a cellulose compound to form a predetermined shape. On the other hand, as a comparative example, without adding the cellulosic compound, without adding the insecticide (Comparative Example 1) and the cellulosic compound obtained by independently shaping the powder of paradichlorobenzene, The same dry evaporation test was performed on the insect repellent (Comparative Example 2) obtained by adding trichlorofon powder to chlorobenzene powder. The compounding ratio of each insect repellent is shown in [Table 1], and the results of the dry evaporation test are shown in [Table 2]. The dry evaporation test was carried out by the following method.

Dry evaporation test Two tablet-type insect repellents each having a weight of 5 g were placed on an aluminum dish, and the average weight of these five dishes was measured. Then, the sample was left in a constant temperature bath at a temperature of 30 ° C., the average weight loss was calculated every predetermined number of days, and the transpiration rate with respect to the average content of paradichlorobenzene in the tablet was calculated based on the following formula. Evaporation rate (%) = average weight loss of each sample / (weight of 2 tablets x
Paradichlorobenzene content) The symbols in [Table 1] and [Table 2] are as follows. P-DCB; paradichlorobenzene TC; trichlorophone HPC; hydroxypropylcellulose MC; methylcellulose [the following margins]

[0014]

[Table 1]

[0015]

[Table 2]

As can be seen from the above [Table 2], each Example 1
Each of the insect repellents Nos. 5 to 5 has an overwhelmingly smaller transpiration rate of paradichlorobenzene in the same period as the insect repellents of Comparative Examples, and exhibits excellent transpiration retarding effect by the blended cellulosic compound. It is clear that

[0017]

The insect repellent of the present invention comprises paradichlorobenzene as a main insect repellent component, and by adding a cellulosic compound thereto and shaping the mixture, the evaporation of paradichlorobenzene is appropriately delayed to provide long-term protection. The insect repellent effect can be maintained throughout. At that time, paradichlorobenzene is mainly added to the insect repellent obtained by adding a small amount of insecticide to this, and a small amount of a cellulosic compound is added to the pesticide to shape it and delay evaporation of paradichlorobenzene over a long period of time. The insecticidal effect can be exerted throughout, and the insecticidal effect of the insecticide can prevent the generation of insects.

According to the method of producing an insect repellent of the present invention, a small amount of an insecticide is added to powdered paradichlorobenzene, if necessary, and a powdered cellulosic compound is added to form a shaped article. As a result, an appropriate insecticidal effect can be brought together with a long-term insect repellent action.

In the method of using the insect repellent of the present invention, the insect repellent formed into a predetermined shape is placed inside the compost container so that the insect repellent can be protected from the inside of the compost container for a long period of time, and the insect repellent can be killed if necessary. At the same time, it is possible to eliminate the foul odor generated from the garbage, so that it is possible to compost the garbage without damaging the surrounding environment.

Claims (7)

[Claims] 1. An insect repellent characterized by being formed by mixing a cellulose compound with an insect repellent component consisting of paradichlorobenzene. 2. An insect repellent characterized by being formed by mixing a cellulosic compound with an insect repellent component mainly containing paradichlorobenzene containing an insecticidal component. 3. The cellulosic compound comprises one or more selected from methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and ethyl hydroxyethyl cellulose. Item 1. An insect repellent according to item 1 or 2. 4. Paradichlorobenzene powder 95-9
Cellulose-based compound powder 5.0 to 9.5% by weight
A method for producing an insect repellent, which comprises blending 0.5% by weight and shaping into a predetermined shape. 5. Paradichlorobenzene powder 90 to 9
Insecticide powder consisting mainly of paradichlorobenzene, in which 8.5 to 1% by weight of powdered insecticide powder is added to 95 to 99.5% by weight, and 5.0 to 5.0% of cellulose compound powder. A method for producing an insect repellent, which comprises blending up to 0.5% by weight and shaping it into a predetermined shape. 6. Paradichlorobenzene powder 95-9
Cellulose-based compound powder 5.0 to 9.5% by weight
A method of using an insect repellent, which comprises adding 0.5% by weight and shaping the insect repellent into a predetermined shape inside a container for compost production. 7. Paradichlorobenzene powder 90 to 9
Insecticide powder consisting mainly of paradichlorobenzene, in which 8.5 to 1% by weight of powdered insecticide powder is added to 95 to 99.5% by weight, and 5.0 to 5.0% of cellulose compound powder. A method of using an insect repellent, comprising: mixing 0.5% by weight of the mixture and shaping the insect repellent into a predetermined shape inside a container for compost production.