JP5091583B2 - Spawning inhibitor for clothing pests - Google Patents

Description

  The present invention relates to a clothing insect pest egg-laying inhibitor useful for protecting clothes from insect damage caused by larvae, particularly larvae, and a method for preventing clothing insect pest damage using the egg-laying inhibitor.

  Conventionally, various drugs have been used in order to prevent clothing damage caused by clothing pests such as squid and carp, and naphthalene and camphor have been widely used in the past, and pyrethroid compounds have been widely used in recent years. However, these drugs prevent insect damage by exerting insecticidal and repellent action against clothing pests, but on the other hand, odors are attached to clothing and have an adverse effect on metal buttons, etc. There was a drawback.

  Therefore, recently, a technique for preventing larvae feeding damage, which is the main cause of damage caused by clothing pests, by controlling the occurrence of larvae has been studied, and as a substitute for naphthalene and pyrethroid compounds, the pre-stage of larvae An egg-killing agent that kills eggs and prevents the development of larvae, and an egg-laying inhibitor (spawning inhibitor) that suppresses the egg-laying of adults that have come to clothing and prevents the occurrence of larvae have been developed. For example, an egg killer (see Patent Document 1) containing paraffinic hydrocarbon as an active ingredient and an egg-laying inhibitor (see Patent Document 2) containing Karan-3,4-diol as an active ingredient have been proposed.

JP 2004-26777 A JP-A-11-209203

However, the drugs described in Patent Document 1 and Patent Document 2 are not always satisfactory in suppressing the occurrence of larvae, and there is still room for study.
Accordingly, there has been a demand for a drug that can more reliably prevent the occurrence of larvae in order to protect the garments from damage caused by insect pests, particularly the damage caused by larvae.

  Therefore, the present invention uses a clothing pest egg-laying inhibitor capable of protecting clothing from damage caused by clothing pests, in particular, feeding damage caused by larvae, by effectively inhibiting the egg-laying of clothing pests, and using the egg-laying inhibitor And a method for preventing pest damage on clothing.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that surfactants (especially nonionic surfactants or anionic surfactants) have an excellent egg-laying inhibitory effect against clothing insect pests. It has been found that it can also inhibit the arrival of adults to clothing, and the present invention has been completed.

That is, the present invention is achieved by the following (1) to ( 4 ).
(1) A clothing pest egg-laying inhibitor characterized by comprising as an active ingredient at least one surfactant selected from the group consisting of polyoxyethylene hydrogenated castor oil and alkylsulfocarboxylate .
(2) the well containing vegetable fine oil as an active ingredient, oviposition inhibitor clothing pests according to (1).
( 3 ) The clothing pest egg-laying inhibitor according to (1) or (2) , which is a solution obtained by dissolving the active ingredient in a solvent.
( 4 ) A method for preventing pest damage on clothing, characterized by spraying the clothing pest egg-laying inhibitor according to any one of (1) to ( 3 ) on clothing.

According to the present invention, it is possible to effectively inhibit egg laying of clothing pests and to significantly reduce the number of eggs laid on clothing as compared to the conventional method, and also inhibit the arrival of adult insects on clothing, thereby providing opportunities for egg laying. Can be reduced. These synergistic effects can effectively prevent damage caused by clothing pests, particularly feeding damage caused by larvae. Moreover, even if sprayed on clothes, the clothes pest egg-laying inhibitor of the present invention does not cause odors or adversely affect buttons or the like.
Furthermore, according to the present invention, a conventional chemical insecticide (for example, a compound such as pyrethroid, carbamate, organophosphorus, etc.) is dared only by using a surfactant alone or a combination of a surfactant and a plant essential oil. Without using it, it is possible to obtain an effect of inhibiting egg laying and flying of clothing pests, so that it is excellent in safety and can sufficiently satisfy consumers' preference for natural products.

  The clothing pest egg-laying inhibitor of the present invention (hereinafter sometimes referred to as “spawning inhibitor”) comprises a surfactant as an active ingredient. By using a surfactant as an active ingredient, it is possible to exert an excellent egg-laying inhibitory action against adult clothing pests and to inhibit the arrival of adult insects on clothing. Although the mechanism of action of the egg-laying inhibitory action in the present invention is not clear, the surfactant as an active ingredient causes some physiological disturbing action by contacting with the adult insects of clothing pests, such as clothing to be spawned It is presumed to inhibit the egg laying above. In addition, as for the flying action on clothes, for example, in the examples described later, since it was recognized that adults hated wool cloth treated with a surfactant, it is presumed that some repelling action also works.

  As the surfactant, for example, one or two or more of a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant and the like can be used. At least one selected from the group consisting of a surfactant and an anionic surfactant is preferred. Furthermore, the anionic surfactant exerts an excellent egg-laying inhibitory effect and more reliably inhibits adults from flying into clothing. This is preferable.

  Examples of the nonionic surfactant include polyoxyethylene hydrogenated castor oil, sorbitan fatty acid ester, glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, Examples include polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, and the like.

  Examples of the anionic surfactant include alkyl sulfocarboxylates, alkyl sulfates, polyoxyethylene alkyl ether sulfates, and alkyl phosphates.

  Examples of the cationic surfactant include alkyl ammonium salts and alkyl benzyl ammonium salts.

  Examples of amphoteric surfactants include alkylbetaines, alkylamine oxides, and alkylamine fatty acids.

Among the surfactants listed above, it is at least one selected from the group consisting of polyoxyethylene hydrogenated castor oil and alkyl sulfocarboxylate that exhibits particularly excellent spawning inhibition and flying inhibition. .
Specific examples of the polyoxyethylene hydrogenated castor oil include those having an added mole number of ethylene oxide of 5 to 100, preferably 40 to 60. In the present specification, “polyoxyethylene (40) hydrogenated castor oil” means hydrogenated castor oil having an added mole number of ethylene oxide of 40, and “polyoxyethylene (60) hydrogenated castor oil” means ethylene oxide. It means hydrogenated castor oil having an addition mole number of 60.
Specific examples of the alkylsulfocarboxylate include sodium di-2-ethylhexylsulfosuccinate and sodium laurylsulfoacetate. Among these, sodium di-2-ethylhexylsulfosuccinate is particularly preferable.

  The content of the surfactant that is an active ingredient may be appropriately set according to the dosage form, etc., for example, when the egg-laying inhibitor of the present invention is in the form of a liquid that will be described later, It is good to set it as 0.1-10 mass / volume%, Preferably it is 0.5-5 mass / volume%.

  The egg-laying inhibitor of the present invention preferably contains plant essential oils as active ingredients. By using plant essential oils together with a surfactant, it is possible to further improve the egg-laying inhibitory effect of clothing pests and the effect of flying. Moreover, by using plant essential oils together, it is also possible to impart a deodorizing effect, an aroma effect, an antifungal effect, etc. to clothing.

  As plant essential oils, for example, hinoki oil, moon peach oil, hiba oil, spearmint oil, eucalyptus oil, cubaba oil, peppermint oil, lemongrass oil, rosemary oil, lavender oil, bored rose oil, marjoram oil, hop oil, Examples include bergamot oil, α-pinene, β-pinene, neem oil, linalool, and chamomile oil. Only one kind of plant essential oil may be used, or two or more kinds may be used.

  The content of the plant essential oil to be contained as an active ingredient may be appropriately set according to the dosage form, etc., for example, when the egg-laying inhibitor of the present invention is in the form of a liquid agent described later, 0.05 to 10 mass / volume%, preferably 0.2 to 3 mass / volume%.

Furthermore, the egg-laying inhibitor of the present invention may contain additives other than the above active ingredients as necessary within the range not impairing the effects of the present invention.
For example, for sterilization, sterilization, deterrence, deodorization, etc., Moso bamboo extract, grapefruit seed extract, flavonoid, green tea extract, rooibos tea extract, yucca extract, olive leaf extract powder, chitosan, oolong tea extract , Grape seed extract, mule layer extract, perilla oil, tea dry extract, licorice oil extract, moso bamboo dry extract, perilla extract, mustard extract, broccoli powder, ginger extract, egonoki extract, kawara mugi extract, Various plant extracts such as honoki extract, forsythia extract, paddy extract, pepper extract, citrus seed extract, raw soybean extract, pimenta extract, fruit extract, fruit seed extract, silver ion, copper ion 1 type, or 2 or more types, such as metal ions, such as these, and the support body of these ions can be used.
Furthermore, stabilizers such as ascorbic acid and butylhydroxyanisole, antiseptics such as paraoxybenzoic acid esters, quaternary ammonium salts, phenoxyethanol, allergen inactivators such as catechin, photocatalysts such as fine titanium oxide, titania phosphate, etc. Non-photocatalysts, fragrances such as mint, bouquet, and lavender, ultraviolet absorbers, insecticides, pest repellents, and the like may be used.

The egg-laying inhibitor of the present invention is preferably a solution (solution) in which the active ingredient is dissolved in a solvent from the viewpoint of easiness of treatment of clothing.
As a solvent, 1 type, or 2 or more types of various organic solvents, such as water and a lower alcohol, a higher alcohol, a polyhydric alcohol, paraffin, glycol, can be used, for example. Among these, those that do not adversely affect clothing when treated are preferable, and lower alcohols such as ethanol, water, or a mixed solvent thereof is preferably used. Furthermore, it is more preferable to use ethanol or an aqueous ethanol solution from the viewpoint that it is easy to dry after being processed into clothing.

Furthermore, it is preferable to use the said liquid agent with forms, such as a spray formulation and an aerosol formulation, so that it may be easy to process to clothing. For example, in order to obtain a spray formulation, the liquid agent can be sprayed at a discharge amount of 0.05 to 5 mL, preferably 0.1 to 3 mL per time (for example, “T-305” manufactured by Mitani Valve Co., Ltd.) ) May be filled.
On the other hand, in order to obtain an aerosol formulation, for example, a propellant such as liquefied petroleum gas, dimethyl ether, carbon dioxide gas, compressed gas, etc., together with the liquid agent, a spray device (for example, an actuator such as a trigger type, push-down type, one-touch cap type) Thus, an aerosol can having a nozzle diameter (for example, about 0.1 to 1.2 mm) that forms spray particles having a particle diameter of about 5 to 400 μm may be pressure-filled.
In addition, the mixture ratio of the liquid agent and propellant at the time of setting it as an aerosol formulation normally has the range used as liquid agent: propellant = 100: 50-500 (volume ratio). The injection amount is 5 to 50 mL / 10 seconds, preferably 5 to 30 mL / 10 seconds.

  The method of using the egg-laying inhibitor of the present invention is not particularly limited, and as described above, it is used as a liquid agent and sprayed on clothing, for example, impregnated into a substrate such as paper, non-woven fabric, pulp granules, etc. It is also possible to use the sheet preparation by sticking it to a clothing cover or storing it in a pocket of the clothing cover. However, in order to effectively manifest the effects of the present invention, it is necessary to use the active ingredient directly attached to the clothing by spraying, as in the method of preventing damage to the pests of the clothing of the present invention described later. preferable.

  The egg-laying inhibitor of the present invention exerts an effect on the egg-laying inhibition of clothing pests such as, for example, squid, carp, Himekatsuobushimushi, Himemarukabushimushi, Harajirokabushibushimushi, Nisemaru leopard beetle.

  The method for preventing pest damage of clothing according to the present invention involves spraying the clothing with the egg-laying inhibitor of the present invention described above. In this case, the egg-laying inhibitor of the present invention is usually used in the form of a spray preparation, an aerosol preparation or the like as the liquid preparation described above.

When spraying the egg-laying inhibitor of the present invention on clothes, for example, it is sprayed from a distance of about 10 to 30 cm so that the total spray amount is ^{2 to} 50 mL per 1 m ² (the active ingredient is ^{2 to} 5000 mg per 1 m ² ). What is necessary is just to process. If the spraying distance is too close, the concentration of the active ingredient is not uniform, and if it is too far, a sufficient amount of the active ingredient may not adhere to the clothing.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

Example 1
Polyoxyethylene (40) hydrogenated castor oil (“HCO40” manufactured by Nikko Chemicals) was dissolved in ethanol to a concentration of 1 mass / volume%, and the resulting solution was used as an egg-laying inhibitor.
This egg-laying inhibitor was sprayed five times using a spray equipped with a trigger type spray device (“T-305” manufactured by Mitani Valve Co., Ltd.) from a distance of 20 cm toward a 7 cm × 7 cm wool cloth (total spray amount: about 1. 5 mL). The wool cloth (treated wool cloth) sprayed with the egg-laying inhibitor was put in a polyethylene terephthalate tray and stored for one day under conditions of a temperature of 25 ° C. and a humidity of 50%.
After that, one of the treated wool cloths is placed in two corners of the four corners of the 40 cm × 40 cm × 13 cm storage case, and the egg-laying inhibitor is sprayed on the other two corners. One untreated wool cloth (untreated wool cloth) was placed.

  Next, 30 adult moths (female) were released in the storage case, and the upper surface was covered with vinyl provided with vent holes. One day after placing the moth adults, the number of eggs laid on each woolen cloth (two treated woolen cloths and two untreated woolen cloths) was counted, and each treated and untreated woolen cloth was counted. The number of eggs laid was determined as the average value of the two. And the egg-laying inhibition rate (%) was calculated based on the following formula from the number of eggs laid on both wool cloths.

Spawning inhibition rate (%)
= 100-{(Number of eggs laid on treated wool / Number of eggs laid on untreated wool) × 100}
In addition, one day after the insertion of the adult moths, the number of adult moths present on each wool cloth (two treated wool cloths and two untreated wool cloths) was observed and counted for about 2 minutes, and processed. The average value was determined for each wool cloth and untreated wool cloth, and the percentage (%) of squid on each wool cloth when the total of both wool cloths (average value) was 100% was determined. And the flying inhibition rate (%) was calculated based on the following formula from the ratio of moths on both wool cloths.

Flight inhibition rate (%)
= 100-{(Rigid ratio on treated wool cloth / Rigid ratio on untreated wool cloth) × 100}
The results are shown in Table 1.

(Example 2)
Polyoxyethylene (60) hydrogenated castor oil (“HCO60” manufactured by Nikko Chemicals) was dissolved in ethanol to a concentration of 1% by mass / volume, and the resulting solution was used as an egg-laying inhibitor.
The same operation as in Example 1 was performed except that this egg-laying inhibitor was used, and the number of eggs laid on the woolen cloth (the number of eggs laid for each treated or untreated woolen cloth ( The average value of the two sheets)), the egg-laying inhibition rate, the percentage of squid on the wool cloth, and the flying inhibition rate were calculated. The results are shown in Table 1.

(Example 3)
Sodium di-2-ethylhexyl sulfosuccinate (“OTP75” manufactured by Nikko Chemicals) was dissolved in ethanol to a concentration of 1 mass / volume%, and the resulting solution was used as an egg-laying inhibitor.
The same operation as in Example 1 was performed except that this egg-laying inhibitor was used, and the number of eggs laid on the woolen cloth (the number of eggs laid for each treated or untreated woolen cloth ( The average value of the two sheets)), the egg-laying inhibition rate, the percentage of squid on the wool cloth, and the flying inhibition rate were calculated. The results are shown in Table 1.

Example 4
4.5 parts by mass of polyoxyethylene (40) hydrogenated castor oil (“HCO40” manufactured by Nikko Chemicals), 4.5 parts by mass of polyoxyethylene (60) hydrogenated castor oil (“HCO60” manufactured by Nikko Chemicals), and A mixture of 1.0 part by mass of sodium di-2-ethylhexyl sulfosuccinate (“OTP75” manufactured by Nikko Chemicals) was dissolved in ethanol to a concentration of 1% by volume / volume, and the resulting solution was inhibited from laying eggs An agent was used.
The same operation as in Example 1 was performed except that this egg-laying inhibitor was used, and the number of eggs laid on the woolen cloth (the number of eggs laid for each treated or untreated woolen cloth ( The average value of the two sheets)), the egg-laying inhibition rate, the percentage of squid on the wool cloth, and the flying inhibition rate were calculated. The results are shown in Table 1.

(Example 5)
3.5 parts by mass of polyoxyethylene (40) hydrogenated castor oil (“HCO40” manufactured by Nikko Chemicals), 3.5 parts by mass of polyoxyethylene (60) hydrogenated castor oil (“HCO60” manufactured by Nikko Chemicals), di- 0.75 parts by mass of sodium 2-ethylhexylsulfosuccinate (“OTP75” manufactured by Nikko Chemicals), 0.75 parts by mass of α-pinene, which is a plant essential oil, 0.75 parts by mass of spearmint oil, and 0.75 of mint oil A mixture consisting of parts by mass was dissolved in ethanol to a concentration of 1.3% by mass / volume, and the resulting solution was used as an egg-laying inhibitor.
The same operation as in Example 1 was performed except that this egg-laying inhibitor was used, and the number of eggs laid on the woolen cloth (the number of eggs laid for each treated or untreated woolen cloth ( The average value of the two sheets)), the egg-laying inhibition rate, the percentage of squid on the wool cloth, and the flying inhibition rate were calculated. The results are shown in Table 1.

(Comparative Example 1)
The same procedure as in Example 1 was performed except that ethanol (100% solution) was used instead of the egg-laying inhibitor in Example 1, and the number of eggs laid on the wool cloth (treatment) was the same as in Example 1. The number of eggs laid for each finished wool cloth and untreated wool cloth (average value of two sheets)), the egg-laying inhibition rate, the percentage of squid on the wool cloth, and the flying inhibition rate were calculated. The results are shown in Table 1.

  From Table 1, the egg-laying inhibitors of Examples 1 to 5 using a surfactant as an active ingredient exert an excellent egg-laying inhibitory effect against squid adults, and the flying of squid adults to the woolen cloth is high. It became clear that it inhibited with the inhibition rate. In particular, in Example 3 in which an anionic surfactant was used as an active ingredient, both the egg-laying inhibition rate and the flying inhibition rate were very excellent. Moreover, from Example 5, when plant essential oil was used together with surfactant, it turned out that an egg-laying inhibition rate improves further. On the other hand, as can be seen from Comparative Example 1, when only ethanol used as a solvent in each Example is used and no surfactant is contained, the egg-laying inhibitory effect and the flying inhibitory effect are not substantially obtained. It was clear.

Claims (4)

An egg laying inhibitor for clothing pests, comprising as an active ingredient a surfactant that is at least one selected from the group consisting of polyoxyethylene hydrogenated castor oil and alkyl sulfocarboxylate . Wherein also comprising plant fine oil as an active ingredient, oviposition inhibitor clothing pests according to claim 1. The clothing pest egg-laying inhibitor according to claim 1 or 2 , which is a solution obtained by dissolving the active ingredient in a solvent. A method for preventing pest damage on clothing, comprising spraying the clothing pest egg-laying inhibitor according to any one of claims 1 to 3 on the clothing.