JP2014125456A - Sanitary insect pest expellent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preparation that can be applied to human, animal and clothes, is soluble in water and can be favourably rinsed with water even when not using a pyrethroid compound such as phenothrin or the like, and has a high effect of exterminating sanitary insect pests such as louse, tick, flea and the like.SOLUTION: The sanitary insect pest expellent includes an anionic surfactant, an amphoteric surfactant and water and has a blending ratio of the anionic surfactant and the amphoteric surfactant of the anionic surfactant/the amphoteric surfactant=12/1 to 1/33. The anionic surfactant is at least one kind selected from among a carboxylic acid type, a sulfonic acid type, a sulfate type and a phosphate type and the amphoteric surfactant is at least one kind selected from among an amine oxide type and a betaine type.

Description

  The present invention relates to a sanitary pest control agent which is excellent in safety and practicality and has an effect on controlling sanitary pests such as lice, mites and fleas.

  Conventionally, sanitary pest control agents that are applied to humans and animals to prevent damage from sanitary pests such as lice, mites, and fleas and to prevent the spread of the damage are known. In general, lice are parasitic on preschoolers, kindergarteners, elementary school children, etc., and ticks and fleas are often parasitized on pets such as dogs, cats, and rabbits. As a pyrethroid insecticide, phenothrin, which has a certain safety, is known, but in recent years, the presence of sanitary pests that have resistance to drugs that act on these nerve cells has also been reported, In addition, there is a need for a preparation having a safety comparable to or higher than that of the currently used phenothrin preparation.

  For example, Patent Document 1 discloses a lice control agent containing at least one of a higher alcohol having 9 to 24 carbon atoms or a fatty acid having 1 to 22 carbon atoms.

JP2012-031169A

  However, since the preparation described in Patent Document 1 has poor hydrophilicity, it is poorly rinsed when washed with water, for example, after being used on the hair to control head lice (scientific name: Pediculus humanus humanus), or After use on the pubic hair to control pheasants (scientific name: Phthirpus pubis), it takes time to wash away the higher alcohol or fatty acid, which is an active ingredient, with water, and requires a lot of water.

  In addition, sanitary pests such as lice, mites, and fleas are infected by many children, children, pets, etc., and those infected persons sway while washing these active ingredients with water. There was a risk that the components could not be washed away sufficiently.

  Even when used against body lice (scientific name: Pediculus humanus corporis) adhering to clothing, it is necessary to wash the higher alcohol or fatty acid, which is an active ingredient with poor hydrophilicity, again with a detergent. Of water.

  Therefore, in the present invention, it can be used for humans, animals, clothing, and even when pyrethroid compounds such as phenothrin are not used, it is water-soluble, is well rinsed with water, and is hygienic such as lice, mites, fleas, etc. An object is to provide a preparation having a high effect of controlling pests.

  (1) That is, the sanitary pest control agent according to the present invention contains an anionic surfactant, an amphoteric surfactant, and water, and the blending ratio of the anionic surfactant and the amphoteric surfactant is the above. An anionic surfactant / the amphoteric surfactant = 12/1 to 1/33.

  (2) The anionic surfactant is at least one selected from a carboxylic acid type, a sulfonic acid type, a sulfate ester type, and a phosphate ester type, and the amphoteric surfactant is an amine oxide type or a betaine type. It is at least 1 sort (s) chosen from these, The hygiene pest control agent as described in said (1) characterized by the above-mentioned.

  (3) The sanitary pest control agent according to (1) or (2), wherein the total amount of the anionic surfactant and the amphoteric surfactant is 0.5 to 95% by weight. is there.

  (4) The sanitary pest control agent according to any one of (1) to (3), wherein the anionic surfactant and the amphoteric surfactant are control components.

  (5) The sanitary pest control agent according to any one of (1) to (4), wherein the sanitary pest is lice, mites, or fleas.

  If constituted in this way, it can be used for humans, animals, clothing, and even when pyrethroid compounds such as phenothrin are not used, it is water-soluble and is well rinsed with water, such as lice, mites, fleas, etc. A preparation with a high effect of controlling sanitary pests can be obtained.

  Hereinafter, embodiments of the sanitary pest control agent of the present invention will be described in detail. In addition, when there exists a description which shows the range in description, an upper limit and a lower limit are contained.

  The present invention is a water-soluble preparation containing an anionic surfactant and an amphoteric surfactant, which are active ingredients for controlling sanitary pests such as lice, in a predetermined blending ratio, and further containing water.

  The anionic surfactant used in the present invention is a controlling component for controlling sanitary pests such as lice by a synergistic effect with an amphoteric surfactant, and is a surfactant having an anionic hydrophilic group, Among them, at least one selected from a carboxylic acid type, a sulfonic acid type, a sulfate ester type, and a phosphate ester type is preferable, and not only a 100% pure compound that is liquid or solid but also a predetermined amount of water. It may be a diluted aqueous solution.

  Carboxylic acid type anionic surfactants include sodium laurate, sodium stearate, sodium laureth-6 carboxylate (sodium polyoxyethylene (4.5) lauryl ether acetate), sodium lauroyl sarcosine, sodium octanoate, decanoic acid Sodium, sodium myristylate, sodium palmitate, coconut oil fatty acid (C8-18) sarcosine sodium and the like are preferable.

  Examples of the sulfonic acid type anionic surfactant include sodium lauryl sulfoacetate, sodium 1-hexanesulfonate, sodium 1-octanesulfonate, sodium 1-decanesulfonate, sodium 1-dodecanesulfonate, sodium toluenesulfonate, cumene Sodium sulfonate, sodium naphthalene sulfonate, disodium naphthalene disulfonate, trisodium naphthalene trisulfonate, sodium alpha olefin sulfonate and the like are preferable.

  Sulfate-type anionic surfactants include sodium lauryl sulfate, sodium myristyl sulfate, sodium laureth sulfate (polyoxyethylene (3) sodium lauryl ether sulfate), sodium cetyl sulfate, sodium cocoglyceryl sulfate (hardened coconut oil fatty acid glyceryl sulfate) Sodium), triethanolamine lauryl sulfate, ammonium lauryl sulfate, triethanolamine laureth sulfate and the like are preferable.

  As the phosphoric acid ester type anionic surfactant, sodium lauryl phosphate, sodium polyoxyethylene cetyl ether phosphate (polyoxyethylene (5) sodium cetyl ether phosphate), lauryl phosphate, potassium lauryl phosphate and the like are preferable. .

  The amount of the anionic surfactant is preferably 0.3 to 55% by weight, more preferably 0.5 to 50% by weight, and most preferably 0.6 to 40% by weight. . When the amount is within this range, a preparation that is water-soluble and highly effective in combating sanitary pests such as lice can be obtained. The anionic surfactant can be used alone or in combination of two or more.

  The amphoteric surfactant used in the present invention is a controlling component for controlling sanitary pests such as lice by a synergistic effect with an anionic surfactant, and an interface having both anionic and cationic hydrophilic groups. Among them, at least one selected from amine oxide type and betaine type is preferable, and it is not only a 100% pure compound that is liquid or solid, but also an aqueous solution obtained by diluting them with a predetermined amount of water. May be.

  Amine oxide type amphoteric surfactants include lauryl dimethylamine oxide, alkyldimethylamine oxide (N, N-dimethylalkyl (C8-18) amine oxide), coconut alkyldimethylamine oxide, decyldimethylamine oxide, myristyldimethylamine. Oxide, dihydroxyethyl lauryl amine oxide, oleyl dimethyl amine oxide and the like are preferable.

  Examples of betaine-type amphoteric surfactants include lauryldimethylaminoacetic acid betaine, laurylhydroxysulfobetaine, stearyldimethylaminoacetic acid betaine, dodecylaminomethyldimethylsulfopropylbetaine, coconut oil fatty acid (C8-18) amidopropyl betaine, 2-alkyl. -N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauric acid amidopropyl betaine and the like are preferable.

  The compounding amount of the amphoteric surfactant is preferably 0.2 to 40% by weight, more preferably 0.25 to 30% by weight, and most preferably 0.3 to 20% by weight. . When the amount is within this range, a preparation that is water-soluble and highly effective in combating sanitary pests such as lice can be obtained. The amphoteric surfactant can be used alone or in combination of two or more.

  The blending ratio of the anionic surfactant and the amphoteric surfactant is preferably anionic surfactant / amphoteric surfactant = 12/1 to 1/33, and preferably 9/1 to 1/19. Further preferred. Furthermore, the total amount of the anionic surfactant and the amphoteric surfactant is preferably 0.5 to 95% by weight, more preferably 0.75 to 80% by weight, and 0.9 to 60% by weight. Most preferred. Within these ranges, due to the synergistic effect of an anionic surfactant and an amphoteric surfactant, even when a pyrethroid compound such as phenothrin is not used, it is water-soluble and is well rinsed with water. It is possible to obtain a preparation having a high effect of controlling sanitary pests such as fleas.

  The water used in the present invention is preferably Japanese Pharmacopoeia standard water, for example, tap water, well water such as well water, and distillation, ion exchange treatment with an ion exchange membrane, ultrafiltration with an ultrafiltration membrane. Examples thereof include purified water obtained by treating normal water by any of the treatments or a combination thereof, and sterilized purified water obtained by sterilizing purified water by heating or the like. Moreover, when the anionic surfactant and the amphoteric surfactant are aqueous solutions, water contained therein may be used.

  The water content is preferably in the range of 5 to 99.5% by weight, more preferably in the range of 20 to 99.25% by weight, and in the range of 40 to 99.1% by weight. Most preferably it is. When it is in this range, the anionic surfactant and the amphoteric surfactant, which are controlling components for controlling sanitary pests such as lice, mites, and fleas, can be easily washed away.

  In the present invention, it is not necessary to use a pyrethroid compound, but this does not prevent the use, and various pyrethroid insecticides can be added. For example, allethrin, tetramethrin, praretrin, phenothrin, resmethrin, ciphenothrin, permethrin, cypermethrin, deltamethrin, tralomethrin, cyfluthrin, flamethrin, imiprotorin, etofenprox, fenvalerate, fenpropathrin, silafluentrin, penalentrin, penfenthrin Etc. are preferable. The pyrethroid compounds can be used alone or in combination of two or more.

  And, in order to give the stability that does not separate even if the formulation is stored for a long time, in order to give the desired effect of combating sanitary pests, to improve foaming, for the purpose of improving the feeling of use, Surfactants other than those described above can be added. For example, nonionic surfactants are preferred, ester types such as glycerol monolaurate, glycerol monostearate, sorbitan monolaurate, ether types such as pentaethylene glycol monododecyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene Sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, ester ether type such as polyoxyethylene polyglycerin fatty acid ester, alkanolamide type such as lauric acid diethanolamide, oleic acid diethanolamide, stearic acid diethanolamide, octyl glucoside, decyl glucoside, Alkyl glycoside types such as lauryl glucoside, cetanol, stearyl alcohol, oleyl alcohol, etc. More preferably in the like grade alcohol. The nonionic surfactant can be used alone or in combination of two or more.

  Furthermore, in order to prevent corrosion such as deterioration due to oxidation of the preparation, vitamin C (ascorbic acid), vitamin E (α-tocopherol), BHT (dibutylhydroxytoluene), BHA (butylhydroxyanisole), sorbic acid, potassium sorbate, Antioxidants such as sodium sulfite can be added. Moreover, paraoxybenzoic acid ester can also be added for the purpose of antiseptic. Moreover, dipotassium glycyrrhizinate can also be added for the purpose of anti-inflammatory action. A phosphate buffer solution or the like can also be added for the purpose of adjusting the pH of the preparation.

  Furthermore, 1-menthol for imparting a refreshing feeling and various fragrances for adding a fragrance can be added.

Examples of the present invention will be specifically described below. In addition, this invention is not limited to a following example.

<Example 1>
In a Griffin beaker having a capacity of 200 ml, 9.0 g of sodium lauryl sulfate (trade name “Emar 0”, manufactured by Kao Corporation) as an anionic surfactant, alkyl (carbon number 8 to 18) dimethylamine oxide as an amphoteric surfactant < N, N-dimethylalkyl (C8-18) amine oxide> (trade name “Aromox DMCW-I” 29% by weight aqueous solution, manufactured by Lion Corporation) 3.4 g (substance amount 1.0 g), Japanese Pharmacopoeia purified water 87.6 g was prepared at 25 ° C., which is room temperature. That is, a preparation comprising 9.0 g of sodium lauryl sulfate, 1.0 g of alkyl (carbon number 8 to 18) dimethylamine oxide, and 90.0 g of water was prepared. And after stirring and mixing until it became uniform, heating this indirectly with a 40 degreeC water bath, it stood to cool and obtained the sanitary insect pest control agent. The results are shown in Table 1.

  The efficacy of the obtained sanitary pest control agent was confirmed by the following test method using lice as sanitary pests. That is, 20 body lice were put in a petri dish, and after the preparation of Example 1 was diluted 5 times with purified water, the lice were soaked for 5 minutes and then pulled up, and the state after 24 hours was observed. . Observe after 24 hours, count the number of surviving animals (number of survivors) and the number of animals that are stationary and die or are in a similar state (number of dead insects), and the extermination rate (%) = {number of dead insects / (Number of survivors + number of dead insects)} × 100, the efficacy is calculated as a percentage, and when the average control rate is 60% or more, which is the average of each control rate in the test conducted three times, lice It was judged that there was an extermination effect. The results are also shown in Table 1. Assuming that the hair and clothes are wet in bathrooms and toilets, the hygienic pest control agent obtained was diluted 5 times with purified water and the effect was confirmed. This does not prevent the effect from being confirmed at other dilution ratios, and in that case, the reference value of the removal rate at which it is judged that there is a removal effect may also vary.

  According to “Urban Pest Encyclopedia” by Sawako Matsuzaki and Kazuo Takee (Asakura Shoten, published in June 1993, pages 34-36), head lice are taxonomically called human lice (scientific name: Pediculus humanus) and hair. It is divided into head lice that parasitize and body lice that parasitize clothes, but they are treated as the same species in taxonomy, and head lice are described as variants of human lice. Therefore, the test was conducted using a body lice.

<Examples 2 to 12>
Using the same product as in Example 1, various blending ratios and concentrations of sodium lauryl sulfate, alkyl (8 to 18 carbon atoms) dimethylamine oxide, and water were variously prepared. And the efficacy was calculated by the extermination rate using 18-22 body lice like Example 1, and the average extermination rate which is the average of each extermination rate in the test implemented 3 times was obtained. The results are shown in Table 1.

<Comparative Examples 1-6>
Using the same product as in Example 1, various blending ratios and concentrations of sodium lauryl sulfate, alkyl (8 to 18 carbon atoms) dimethylamine oxide, and water were variously prepared. And the efficacy was calculated by the extermination rate using 18-22 body lice like Example 1, and the average extermination rate which is the average of each extermination rate in the test implemented 3 times was obtained. The results are shown in Table 2.

<Examples 13 to 19>
Using 7.0 g of sodium lauryl sulfate (trade name “Emar 0”, manufactured by Kao Corporation) as an anionic surfactant, changing the type of amphoteric surfactant, a formulation was prepared as in Example 1, and The control rate was calculated using 18 to 22 body lice, and an average control rate that was the average of each control rate in the test carried out three times was obtained. That is, the amphoteric surfactant was 8.57 g (substantially component amount 3.0 g) of lauryl dimethylamine oxide (trade name “Amphithol 20N” 35 wt% aqueous solution, manufactured by Kao Corporation) in Example 13; 9.7 g of alkyldimethylamine oxide (trade name “Aromox DMC-W”, 31% by weight aqueous solution, manufactured by Lion Corporation) (actual component amount: 3.0 g), decyldimethylamine oxide (trade name “Aromox DM10D-” in Example 15) W "40.3% by weight aqueous solution, manufactured by Lion Corporation) 7.4 g (substantial component amount 3.0 g), in Example 16, myristyl dimethylamine oxide (trade name" Aromox DM14D-N "25.1% by weight aqueous solution, Lion Co., Ltd.) 12.0g (Substance content 3.0g), Examples In Example 7, dihydroxyethyl laurylamine oxide (trade name “Unisafe A-LE” 41.1 wt% aqueous solution, manufactured by NOF Corporation) 7.3 g (substantial component amount 3.0 g), in Example 18, lauryl dimethylaminoacetic acid betaine (Trade name “Amphithol 20BS” 30% by weight aqueous solution, manufactured by Kao Corporation) 10.0 g (substantial component amount 3.0 g), Example 19 lauryl hydroxysulfobetaine (trade name “Amphitol 20HD” 30.8% by weight aqueous solution 9.7 g (substantial component amount: 3.0 g) was used. The results are shown in Table 3.

<Examples 20 to 33>
As an amphoteric surfactant, alkyl (carbon number 8-18) dimethylamine oxide <N, N-dimethylalkyl (C8-18) amine oxide> (trade name "Aromox DMCW-I" 29 wt% aqueous solution, manufactured by Lion Corporation) Using 10.34 g (substantial component amount: 3.0 g), changing the kind of anionic surfactant, preparing a preparation in the same manner as in Example 1, and calculating the extermination rate using 18-22 body lice And the average removal rate which is the average of each removal rate in the test implemented 3 times was obtained. That is, the anionic surfactant was sodium laurate (trade name “NONSAR LN-1”, manufactured by NOF Corporation) 7.0 g in Example 20, and sodium stearate (trade name “NONSAL SN-1” in Example 21). ”, Manufactured by NOF Corporation) 7.0 g, sodium laureth-6 carboxylate <polyoxyethylene (4.5) sodium lauryl ether acetate> in Example 22 (trade name“ Kao Akipo RLM-45NV ”23.5 wt% In aqueous solution, manufactured by Kao Corporation 29.8 g (substantial component amount 7.0 g), in Example 23, sodium myristyl sulfate (trade name “NIKKOL SMS-F”, manufactured by Nikko Chemicals Co., Ltd.) 7.0 g, in Example 24 6. Cetyl sodium sulfate (trade name “NIKKOL SCS”, manufactured by Nikko Chemicals Co., Ltd.) g, Sodium cocoglyceryl sulfate in Example 25 <Hardened coconut oil fatty acid sodium glyceryl sulfate> (trade name “NIKKOL SGC-80N”, manufactured by Nikko Chemicals Co., Ltd.) 7.0 g, In Example 26, lauryl sulfate triethanolamine (commodity) Name “Emar TD” 40 wt% aqueous solution, Kao Corporation 17.5 g (substantially 7.0 g), Example 27 ammonium lauryl sulfate (trade name “Emar AD-25R” 22.8 wt% aqueous solution, Kao Stock 30.7 g (manufactured by the company) (substantially 7.0 g), in Example 28 laureth sulfate triethanolamine <polyoxyethylene (3) lauryl ether sulfate triethanolamine> (trade name “Emar 20T” 40.6 wt% aqueous solution , Produced by Kao Corporation) 17.2 g (substance 7.0) ) In Example 29, sodium laureth sulfate <polyoxyethylene (3) sodium lauryl ether sulfate> (trade name “Persoft EF” 25 wt% aqueous solution, manufactured by NOF Corporation) 28.0 g (substantially 7.0 g) In Example 30, sodium lauryl sulfoacetate (trade name “NIKKOL LSA-F”, manufactured by Nikko Chemicals Co., Ltd.) 7.0 g, and in Example 31, sodium lauryl phosphate (trade name “NIKKOL SLP-N”, Nikko Chemicals Co., Ltd.) 7.0 g, sodium polyoxyethylene cetyl ether phosphate in Example 32 <polyoxyethylene (5) sodium cetyl ether phosphate> (trade name “NIKKOL TCP-5”, manufactured by Nikko Chemicals Co., Ltd.) 0 g, lauroyl sarconsinna in Example 33 7.0 g of thorium (trade name “NIKKOL Sarcosinate LN”, manufactured by Nikko Chemicals Co., Ltd.) was used. The results are shown in Table 4.

<Examples 34 to 43>
Further, the types of amphoteric surfactants and anionic surfactants were changed, preparations were prepared in the same manner as in Example 1, and the extermination rate was calculated using 18 to 22 body lice. The average removal rate, which is the average of each removal rate, was obtained. That is, in Example 34, 7.0 g of sodium laurate (trade name “Nonsar LN-1”, manufactured by NOF Corporation) as an anionic surfactant and dihydroxyethyl laurylamine oxide (trade name “Unisafe A” as an amphoteric surfactant) -LE "41.1% by weight aqueous solution, manufactured by NOF Corporation) 7.0 g (substantial component amount 2.9 g), sodium laurate (trade name" NONSAR LN-1 "as an anionic surfactant in Example 35, 7.0 g of NOF Corporation), 10.0 g of lauryldimethylaminoacetate betaine (trade name “Amphitol 20BS”, 30% by weight aqueous solution, Kao Corporation) as an amphoteric surfactant, implemented In Example 36, sodium laurate (trade name “Nonsar LN-1”, NOF Corporation as an anionic surfactant) 7.0 g, lauryl hydroxysulfobetaine (trade name “Amphithol 20HD” 30.8 wt% aqueous solution, manufactured by Kao Corporation) as an amphoteric surfactant, 10.0 g (substantial component amount 3.1 g), Example 37 7.0 g of sodium cetyl sulfate (trade name “NIKKOL SCS”, manufactured by Nikko Chemicals Co., Ltd.) as an anionic surfactant and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (as an amphoteric surfactant) Trade name “Amphitol 20YB” 40% by weight aqueous solution, manufactured by Kao Corporation) 8.0 g (substantial component amount 3.2 g), sodium lauryl sulfoacetate (trade name “NIKKOL LSA-F” as an anionic surfactant in Example 38) 7.0g, manufactured by Nikko Chemicals Co., as an amphoteric surfactant Dihydroxyethyl lauryl amine oxide (trade name “Unisafe A-LE” 41.1% by weight aqueous solution, manufactured by NOF Corporation) 7.0 g (substantially 2.9 g), lauryl sulfo as an anionic surfactant in Example 39 Sodium acetate (trade name “NIKKOL LSA-F”, manufactured by Nikko Chemicals Co., Ltd.) 7.0 g, lauryldimethylaminoacetic acid betaine (trade name “Amphitol 20BS”, 30% by weight aqueous solution, manufactured by Kao Corporation) as an amphoteric surfactant 10 0.0 g (substantial component amount 3.0 g), 7.0 g of sodium lauryl sulfoacetate (trade name “NIKKOL LSA-F”, manufactured by Nikko Chemicals Co., Ltd.) as an anionic surfactant in Example 40, lauryl as an amphoteric surfactant Hydroxysulfobetaine (trade name “Amphitor 20HD” 0.8% by weight aqueous solution, manufactured by Kao Corporation 10.0 g (substantially component amount 3.1 g), sodium lauryl phosphate (trade name “NIKKOL SLP-N”, Nikko Chemicals Co., Ltd.) as an anionic surfactant in Example 41 7.0 g, dihydroxyethyl laurylamine oxide (trade name “Unisafe A-LE” 41.1 wt% aqueous solution, manufactured by NOF Corporation) as an amphoteric surfactant, 7.0 g (substantial component amount 2.9 g) In Example 42, 7.0 g of sodium lauryl phosphate (trade name “NIKKOL SLP-N”, manufactured by Nikko Chemicals Co., Ltd.) as an anionic surfactant and betaine lauryl dimethylaminoacetate (trade name “Amphithol 20BS” as an amphoteric surfactant) "30% by weight aqueous solution, manufactured by Kao Corporation" 10.0 g (substantial component amount 3.0 g), fruit In Example 43, 7.0 g of sodium lauryl phosphate (trade name “NIKKOL SLP-N”, manufactured by Nikko Chemicals Co., Ltd.) as an anionic surfactant, and 30% of lauryl hydroxysulfobetaine (trade name “Amphitol 20HD” as an amphoteric surfactant). 10.0 g (substantially component amount 3.1 g) of 8 wt% aqueous solution, manufactured by Kao Corporation was used. The results are shown in Table 5.

  As shown in Table 1 and Table 2, in Examples 1 to 12, when using a preparation that is an aqueous solution containing an anionic surfactant and an amphoteric surfactant in a predetermined mixing ratio with respect to lice, 60% or more can be extinguished. In Comparative Examples 1 to 6, when one of the anionic surfactant and the amphoteric surfactant is not blended, the effect of eliminating lice does not appear, and the anionic surfactant Even if the amphoteric surfactant and the amphoteric surfactant were blended out of the predetermined blending ratio, the effect of controlling lice did not appear. From this, it has been clarified that as a synergistic effect by containing an anionic surfactant and an amphoteric surfactant at a predetermined blending ratio, a high extermination effect against pests such as lice appears.

  And as shown in Table 3, even if the amphoteric surfactant is changed to another amine oxide type compound, and further changed to a betaine type compound, as a synergistic effect with the anionic surfactant, It became clear that a high extermination effect was exhibited against pests such as.

  As shown in Table 4, even if the anionic surfactant is changed to another sulfate ester type compound, it is further changed to a carboxylic acid type compound, a sulfonic acid type compound, or a phosphate ester type compound. However, as a synergistic effect with the amphoteric surfactant, it was revealed that a high extermination effect was exhibited against pests such as lice.

  Further, as shown in Table 5, the anionic surfactant is sulfate type, carboxylic acid type, sulfonic acid type, and phosphate ester type, and the amphoteric surfactant is amine oxide type and betaine type. In any of the combinations, it was clarified that as a synergistic effect with the anionic surfactant and the amphoteric surfactant, a high extermination effect against pests such as lice was exhibited.

Claims (5)

It contains an anionic surfactant, an amphoteric surfactant and water, and the blending ratio of the anionic surfactant and the amphoteric surfactant is such that the anionic surfactant / the amphoteric surfactant = 12/1. Sanitary pest control agent characterized by being 1/33. The anionic surfactant is at least one selected from a carboxylic acid type, a sulfonic acid type, a sulfate ester type, and a phosphate ester type, and the amphoteric surfactant is at least one selected from an amine oxide type and a betaine type. The sanitary pest control agent according to claim 1, wherein The hygiene pest control agent according to claim 1 or 2, wherein the total amount of the anionic surfactant and the amphoteric surfactant is 0.5 to 95% by weight. The hygiene pest control agent according to any one of claims 1 to 3, wherein the anionic surfactant and the amphoteric surfactant are control components. The sanitary pest control agent according to any one of claims 1 to 4, wherein the sanitary pest is lice, mites, or fleas.