TW201720301A - Insect pest repellent composition in powder form, and method for producing same - Google Patents

Abstract

By noticing an insect pest repellent in the form of a powder-type product, provided is an alcohol-free powdery insect pest repellent composition that has an excellent insect pest repellant effect and a high safety to humans and animals and, moreover, gives a satisfactory sense of use and shows a long persistence. The powdery insect pest repellent composition comprises an insect pest repellant comprising, as an active ingredient, at least one member selected from the group consisting of deet, ethyl 3-(N-n-butyl-N-acetyl)aminopropionate and icaridin, an irritation-mitigating agent comprising a glycol-type solvent as an active ingredient, a moisture-retaining agent comprising talc as an active ingredient, and an oil absorbent comprising a silicic acid compound as an active ingredient, wherein the ratio (a:b) by weight of the content (a) of the moisture-retaining agent to the content (b) of the oil absorbent is from 3:1 to 20:1.

Description

Powdery pest repellent composition and method of producing the same

The present invention relates to a powdery pest repellent composition for protecting a human or an animal from pests such as mosquitoes, cockroaches, cockroaches, house dust mites, bed bugs, and the like, and a method of producing the same.

The conventional pest repellent product is a spray type product having an alcohol as a base. For example, Patent Document 1 and Patent Document 2 are known as a spray can-type pest repellent product. The pest repellent composition of Patent Document 1 is prepared by mixing an inorganic powder, an organic powder, and anhydrous citric acid at a specific ratio, and filling it in a spray can container together with a pest repellent component, an alcohol, and a propellant. In the repellent composition of Patent Document 2, the pest repellent is carried on the porous porphyry microparticles, and is filled in the spray can container together with the synthetic resin fine particles, the alcohol, and the propellant. In addition, a wet tissue type product of Patent Document 3 has been developed as a pest repellent product other than the spray can type. The pest repellent of Patent Document 3 is a phthalic acid compound, a pest repellent component, and an alcohol impregnated into a non-woven fabric.

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2000-63201 (Patent Document 3): JP-A-2001-270802

However, the spray can-type pest repellent products of Patent Document 1 and Patent Document 2 are likely to cause uneven coating of the coated surface because the pest repellent component is micronized and sprayed onto the skin surface. As a result, there are cases where a small portion of the drug does not adhere to the skin, and a bite of the mosquito and a blood sucking action are caused in the micro part. Further, the nasal mucosa is often irritated by the scattering of the composition (agent) by the pest containing the alcohol or the pest repellent component, and it is required to be improved in the sense of use. Since the pest repellent of the patent document 3 is not a spray can type, the problem of the scattering of the chemical agent is small, but the alcohol is used in the same manner as the pest repellent product of Patent Document 1 and Patent Document 2, and therefore, it is suitable for people who are allergic to alcohol or the like. Words are still difficult to use.

For this reason, the demand for pest repellent products of the type that does not use alcohol has been increasing recently. The present invention has been made in view of the above problems, and the product form as a pest repellent composition is focused on a powder type, and the object thereof is to provide a pest repellent effect and an excellent safety to humans or animals, and a sense of use or persistence. An alcohol-free powdery pest repellent composition which is also satisfactory in this point and a method for producing the same.

The powdery pest repellent composition relating to the present invention for solving the above problems is characterized in that: a powdery pest repellent composition comprising: selected from the group consisting of DEET, 3-(N-正At least one of a group consisting of 3-(Nn-butyl-N-acetyl)aminopropionic acid ethyl ester and icaridin is effective a pest repellent as a component; a stimulating agent containing a glycol solvent as an active ingredient; a moisture retaining agent containing talc as an active ingredient; and an oil absorbent containing a phthalic acid compound as an active ingredient, The ratio (a: b) of the compounding amount (a) of the moisture retaining agent to the compounding amount (b) of the above-mentioned oil component absorbent is 3:1 to 20:1 by weight.

According to the powdery pest repellent composition of the present configuration, the moisture retaining agent containing talc as an active ingredient and the oil absorbent containing the phthalic acid compound as an active ingredient are contained in the above appropriate mixing ratio, so that the user will treat the powdery pest When the repellent composition is applied to the skin, the oil component such as sebum is moderately absorbed by the citric acid compound, and the talc maintains moisture moderately while suppressing stickiness, and a moist touch is obtained. Further, since the talc and the citric acid compound are stable substances, the effect of the pest repellent is not attenuated, and the effect of the stimulating damper can be complemented by the effect of the stimulating damper, and the product has a low irritating repellent effect.

In the powdery pest repellent composition according to the present invention, the ethylene glycol solvent is preferably 1,3-butylene glycol.

According to the powdery pest repellent composition of the present configuration, by using 1,3-butylene glycol as the ethylene glycol solvent, an excellent feeling of use can be achieved, and in particular, the stimulating and relaxing effect can be enhanced.

In the powdery pest repellent composition according to the present invention, the apparent specific gravity measured by the talc according to JIS K5101 is preferably 0.4 to 0.6 g/cc.

According to the powdery pest repellent composition of the present configuration, since the apparent specific gravity of the talc is in the above-mentioned appropriate range, the moisture is moderately held by the talc, and a moist feeling can be obtained.

In the powdery pest repellent composition according to the present invention, the talc is preferably an average particle diameter of 20 μm or more.

According to the powdery pest repellent composition of the present configuration, the average particle diameter of the talc is 20 μm or more, so that the talc can be surely adhered to the skin, and a moist feeling can be obtained.

In the powdery pest repellent composition relating to the present invention, the above-mentioned citric acid compound is preferably anhydrous citric acid.

According to the powdery pest repellent composition of the present invention, by using anhydrous citric acid as the citric acid compound, the oil absorbability is particularly excellent, and it is an effective product which can reduce the stickiness to a person having a large amount of sebum. .

In the powdery pest repellent composition according to the present invention, the above-mentioned tannic acid compound preferably has a specific surface area of 5 to 100 m ² /g.

According to the powdery pest repellent composition of the present configuration, since the specific surface area of the citric acid compound is within the above-described appropriate range, the oil component such as sebum can be efficiently absorbed.

In the powdery pest repellent composition relating to the present invention, it is preferred that no alcohol is contained.

According to the powdery pest repellent composition of the present configuration, since it does not contain alcohol, it can be used with peace of mind even for people who are allergic to irritation.

The method for producing a powdery pest repellent composition according to the present invention for solving the above problems is characterized in that: a method for producing a powdery pest repellent composition, comprising: being selected from the group consisting of DEET, 3- (A pest repellent as an active ingredient of at least one of a group consisting of (N-n-butyl-N-acetyl)ethylaminopropionate and ecaridin, and an ethylene glycol solvent as an active ingredient a mixing procedure of stimulating the tempering agent; absorbing the mixture obtained by the aforementioned mixing procedure in an absorption procedure of an oil absorbing agent containing a phthalic acid compound as an active ingredient; adding a moisture retaining agent containing talc as an active ingredient to the aforementioned absorption program a procedure for adding an oil-absorbing absorbent that has been completed; and a stirring procedure for agitating a mixture of the components obtained by the above-described addition procedure, the amount of the moisture retaining agent added in the adding procedure (a), and the aforementioned oil in the absorption procedure The ratio (a:b) of the amount (b) of the absorbent used is from 3:1 to 20:1 by weight.

According to the method for producing a powdery pest repellent composition of the present configuration, it is possible to achieve the same excellent effects as the powdery pest repellent composition described above. In other words, the amount of the moisture retaining agent containing talc as an active ingredient in the adding procedure and the amount of the oil-absorbing absorbent having the phthalic acid compound as an active component in the absorption program are set to the above-mentioned appropriate weight ratio. Therefore, when the user applies the powdery pest repellent composition obtained by the stirring process to the skin, the oil is selenically absorbed by the phthalic acid compound, and the talc maintains moisture moderately while suppressing stickiness. Moist touch. Further, since the talc and the citric acid compound are stable substances, the effect of the pest repellent is not attenuated, and the effect of the stimulating damper can be complemented, and a product having a low irritating repellent effect can be produced.

The powdery pest repellent composition of the present invention contains (1), a pest repellent, (2), a stimulating demulcent, (3), a moisture retaining agent, and (4) an oil component as a basic component. On the other hand, the powdery pest repellent composition of the present invention does not contain an alcohol such as ethanol, isopropanol or propanol. Hereinafter, each component of the powdery pest repellent composition of the present invention will be described in detail.

(1) Insect Repellent The pest repellent is a substance that has a repellent effect or a blood-sucking obstruction effect on pests. Examples of the pest repellent include: DEET, 3-(N-n-butyl-N-ethionyl)aminopropionate, ecaridin, picaridin, incense Citronellal, citronellol, citral, linalool, terpineol, menthol, p-menthane-3,8-diol (p -menthane-3,8-diol), α-pinene, camphor, geraniol, long pine needle-3,4-diol (carane-3,4-diol And other synthetic compounds. Further, natural products such as cinnamon, citronella, lemongrass, clover, bergamot, laurel, eucalyptus, and the like can also be used. The natural product can be used in the form of an essential oil or an extract. Among the pest repellents listed above, DEET, 3-(N-n-butyl-N-ethinyl) alanine propionate and ecaridin are suitable for use. DEET has many years of use. Ethyl 3-(N-n-butyl-N-ethionyl)aminopropionate has a repellent effect similar to that of DEET, and is safer to humans than DEET. Eccaridine has high pest repellent effect and high safety. Further, each of the pest repellents listed above may be used singly or in combination of two or more. The compounding amount of the pest repellent is 1 to 15% by weight, preferably 3 to 14% by weight, and more preferably 6 to 12% by weight based on the total amount of the powdery pest repellent composition. When the compounding amount is less than 1% by weight, sufficient pest repellent effect cannot be obtained. If the compounding amount is more than 15% by weight, the stimulus is too strong.

(2) Stimulating mitigating agent The stimulating and relaxing agent is a substance added to alleviate the skin irritation caused by the pest repellent. A glycol solvent is used as a stimulus mitigator. The ethylene glycol solvent is preferably a C ₃ -C ₆ ethylene glycol, and examples thereof include diethylene glycol, propylene glycol, dipropylene glycol, and 1,3-butylene. 1,3-butylene glycol and the like. Among these, 1,3-butanediol having a high stimulating effect is more suitable for use. By the way, the C ₃ -C ₆ ethylene glycol including 1,3-butanediol is difficult to absorb from the skin itself, and is therefore effective for reducing the percutaneous absorption of the pest repellent. Further, the ethylene glycol-based solvent listed above may be used singly or in combination of two or more. The blending amount of the stimulating demulcent is 1 to 15% by weight, preferably 5 to 10% by weight, and more preferably 6 to 8% by weight based on the total amount of the powdery pest repellent composition. When the compounding amount is less than 1% by weight, the stimulation of the pest repellent cannot be sufficiently alleviated. When the amount is more than 15% by weight, the tackiness is increased by a large amount of the ethylene glycol solvent, and the feeling of use tends to deteriorate.

(3) Moisture Retaining Agent The moisture retaining agent is a substance added to generate a wet touch (so-called moist feeling). Use talc as a moisture retaining agent. The specific gravity of talc measured in accordance with JIS K5101 is preferably 0.4 to 0.6 g/cc. When the specific gravity is less than 0.4 g/cc, the feeling of stickiness is stronger than that of the moist feeling, and the feeling of use tends to deteriorate. When the specific gravity exceeds 0.6 g/cc, the dry feeling becomes strong and there is a possibility of falling powder. Further, the average particle diameter of the talc is preferably 20 μm or more. By having an average particle diameter of 20 μm or more, the talc can be surely adhered to the skin, and a moist feeling can be obtained. When the average particle diameter is less than 20 μm, when the skin is applied to the skin, the pests are repelled from the composition white, and there is a case where a so-called white residue is generated. Further, talc can also be used in a state of being mixed with other inorganic powders such as kaolin or bentonite. The blending amount of the moisture retaining agent is 50 to 90% by weight, preferably 55 to 85% by weight, and more preferably 63 to 83.5% by weight, based on the total amount of the powdery pest repellent composition. When the blending amount is less than 50% by weight, the moisture cannot be sufficiently retained, so that the powder is dropped. When the compounding amount is more than 90% by weight, the feeling of stickiness is strongly felt more than the feeling of moistness, and the feeling of use tends to deteriorate.

(4) Oil-absorbing absorbent The oil-absorbing absorbent is a substance added to absorb oil such as sebum. A tannic acid compound is used as the oil absorbent. Examples of the citric acid compound include anhydrous citric acid, calcium citrate, hydrophobic silica, diatomaceous earth, and the like. Among them, anhydrous citric acid having a high oil absorption effect is more suitable for use. The tannic acid compound is preferably a specific surface area of 5 to 100 m ² /g. When the specific surface area is less than 5 m ² /g, the oil absorption capacity is insufficient to easily cause stickiness. When the specific surface area exceeds 100 m ² /g, the dry feeling becomes strong and there is a possibility of falling powder. Further, the above-described tannic acid compounds may be used singly or in combination of two or more. The blending amount of the oil-absorbing absorbent is from 1 to 50% by weight, preferably from 3 to 30% by weight, more preferably from 4.5 to 21% by weight, based on the total amount of the powdery pest repellent composition. When the blending amount is less than 1% by weight, the oil absorption capacity is insufficient, and stickiness is likely to occur. When the blending amount is more than 50% by weight, the oil absorption capacity becomes excessive, and the feeling is heavy and the feeling of use tends to deteriorate.

The powdery pest repellent composition of the present invention is the above (1), a pest repellent, (2), a stimulating emollient, (3), a moisture retaining agent, and (4), an oil absorbing agent, for example, It is manufactured by the following procedure.

First, mix pest repellents and stimulating mitigators (mixing procedures). Next, the mixture obtained by the mixing procedure is absorbed into the oil absorbent (absorption procedure). Further, a moisture retaining agent is added to the oil-absorbing absorbent (addition procedure) in which the absorption process is completed. Finally, the mixture of the components obtained by the addition procedure was stirred (stirring procedure). According to this, the powdery pest repellent composition of the present invention is completed.

Here, the inventors of the present invention have made an attempt to correct the amount of the components of the powdery pest repellent composition. In order to ensure the pest repellent effect and the safety to the human body or the animal, the feeling of use and persistence are excellent. In the product, it is important to set the blending amount of the moisture retaining agent and the amount of the oil component absorbent in each of the above components to an appropriate ratio. Specifically, the blending amount (addition amount) of the moisture retaining agent is a, and the blending amount (usage amount) of the oil component absorbent is b, and the ratio of the blending amount of the moisture retaining agent to the blending amount of the oil component absorbent (a: b) ) is set to a weight ratio of 3:1 to 20:1, preferably 3:1 to 19:1. When the blending ratio is smaller than 3:1, that is, the blending amount of the moisture retaining agent is much smaller than the blending amount of the oil component absorbent, since the moisture cannot be sufficiently retained, the powder falling may occur. When the mixing ratio is larger than 20:1, that is, the amount of the moisture retaining agent is much larger than the amount of the oil-absorbing absorbent, the feeling of stickiness is strongly felt more than the moist feeling, and the feeling of use tends to deteriorate. When the blending ratio is set to the above-mentioned range, the user applies the powdery pest repellent composition to the skin, and the oil such as sebum is moderately absorbed by the tannic acid compound, and the talc moderately retains moisture while suppressing the hair growth. Sticky and get a moist touch. Further, since the talc and the citric acid compound are stable substances, the effect of the pest repellent is not attenuated, and the effect of the stimulating damper can be complemented by the effect of the stimulating damper, and the product has a low irritating repellent effect.

The powdery pest repellent composition of the present invention may contain other components as long as it does not inhibit the respective effects of the pest repellent, the stimulating damper, the moisture retaining agent, and the oil absorbing agent. Examples of such a component include an ultraviolet absorber, an ultraviolet ray scattering agent, a glossing agent, other powders, an anti-inflammatory agent, an antiperspirant, a humectant, a surfactant, a dispersing agent, a perfume, and the like.

Examples of the ultraviolet absorber and the ultraviolet scattering agent include p-aminobenzoic acid, amyl salicylate, octyl cinnamate, and octyl methoxycinnamate. 2,4-dihydroxybenzophenone, titanium oxide, zinc oxide, and the like. Examples of the anti-inflammatory agent include dipotassium glycyrrhizinate, allantoin, alkyl trimethyl ammonium chloride, tocopherol acetate, and camphor. )Wait. Examples of the antiperspirant include aluminum sulfate, chlorohydroxy aluminum, and zinc phenolsulfonate. Examples of the brightening agent include a film (for example, a film in which aluminum is vapor-deposited on polyethylene terephthalate, a film in which gold is deposited on polyethylene terephthalate, or a poly-pigment). Laminated film of ethylene glycol and polyolefin, laminated film of polyethylene terephthalate and polymethyl methacrylate, polyethylene terephthalate and polyethylene Fine broken piece of (polyethylene) laminated film; natural mica powder such as muscovite powder and phlogopite powder; synthetic mica powder obtained by melting natural mica powder to remove impurities; and mica titanium after mixing titanium oxide with mica powder Minerals; polyol esters such as ethylene glycol monostearate, ethylene glycol distearate, triethylene glycol distearate Class; acacia capsules containing pigments. Further, it is also possible to mix an organic powder such as a modified starch or a silk fiber powder in a powdery pest repellent composition.

The powdery pest repellent composition of the present invention thus obtained has a high repellent effect on pests (especially biting pests such as mosquitoes, cockroaches, cockroaches, house dust mites, bed bugs, etc.), and is excellent in safety to humans or animals. A pest repellent product that is also satisfactory at the point of use or persistence. Further, since the powdery pest repellent composition of the present invention does not use alcohol at all, it can be used safely even by people who are allergic to alcohol or the like. [Examples]

In order to confirm the efficacy of the powdery pest repellent composition of the present invention, various pest repellents, stimulating mitigating agents, moisture retaining agents, and oil component absorbents were blended to prepare a powdery pest repellent composition (Examples 1 to 11 and Comparative Examples). 1 to 3), each of the components was used, and a pest repellent effect confirmation test (initial, after a certain period of time) and a functional test (stickiness, moist feeling) were carried out.

<Preparation of Powdery Pest Repellent Composition> First, a mixture of a pest repellent and a stimulating demulcent is prepared, and the mixture is absorbed into the oil absorbent. Then, a water retaining agent was further added, and by sufficiently mixing them, powdery pest repellent compositions relating to Examples 1 to 11 and Comparative Examples 1 to 3 were obtained. Table 1 shows the mixing (unit: by weight) of the pest repellent, the stimulating damper, the moisture retaining agent, and the oil component absorbent in each of the examples and the comparative examples.

[Table 1]

Use as a pest repellent with DEET, Eccaridine or 3-(N-n-butyl-N-ethionyl) alanine propionate. 1,3-butanediol was used as a stimulator. Use talc as a moisture retaining agent. Anhydrous citric acid (trade name: CARPLEX (registered trademark) 80, manufactured by Degussa Japan Co., Ltd.) was used as the oil absorbent.

<Pest Repellent Effect Confirmation Test> 20 female adults of Culex pipiens pallens were released to a box having a sealable opening, and powders related to Examples 1 to 11 and Comparative Examples 1 to 3 were applied to the openings. One arm of the subject of the pest repellent composition (2 g each) was inserted into the box, and the number (n ₁ ) of Culex pipiens pallens attached to one arm of the subject was counted. Further, one arm of the subject not coated with the powdery pest repellent composition was inserted into a box of the same condition as a blank, and the Culex pipiens pallens attached to one arm of the subject was similarly calculated. Number (n ₀ ). Then, the repellent rate of Culex pipiens pallens was calculated as (n ₀ - n ₁ ) / n ₀ [%]. The repellent rate was calculated immediately after the start of use of the powdery pest repellent composition (after the start of the test) and 4 hours from the start of use. The results of the pest repellent effect confirmation test are shown in Table 2.

[Table 2]

<Functional Test> Each of the powdery pest repellent compositions relating to Examples 1 to 11 and Comparative Examples 1 to 3 was applied to the skin of a panel of 10 persons, and the feeling of use was evaluated in five stages. The evaluation criteria are the average values of the evaluation points of the panelists of 10 people using the contents shown below. [Feeling] 5: I don't feel sticky at all. 4: I feel very sticky. 3: I feel a little sticky. 2: I feel sticky. 1: I feel very sticky. [Moist feeling] 5: Very moist. 4: There is a moist feeling. 3: A little moist feeling. 2: Very slight and moist. 1: There is no sense of humidity at all. The results of the functional tests are shown in Table 3.

[table 3]

As a result of the pest repellent effect confirmation test, the powdery pest repellent compositions relating to Examples 1 to 11 and Comparative Examples 1 to 3 were confirmed to have sufficient repellent effects immediately after use. However, if the powdery pest repellent composition relating to Examples 1 to 11 is almost invisible from the start of use, the repellent effect is hardly observed, and the composition is a persistent powdery pest repellent composition. The powdery pest repellent compositions of Examples 1 to 3 confirmed the decrease in the repellent effect. Further, the decrease in the repellent effect becomes remarkable as time passes (the data is omitted).

As a result of the sensory test, the powdery pest repellent compositions related to Examples 1 to 11 as a whole showed that both the [sticky feeling] and the [wet feeling] were highly evaluated (that is, the stickiness was small, There was a feeling of moistness. However, the powdery pest repellent compositions related to Comparative Examples 1 to 3 could not coexist with [sticky feeling] and [wet feeling], and the evaluation point itself was also low.

As a result of the above, the powdery pest repellent composition of the present invention is excellent in the feeling of use or persistence, and does not contain alcohol at all. Therefore, it is apparent that it is useful as a pest repellent product which is easy to use even for people who are allergic to irritation.

The powdery pest repellent composition of the present invention can be used as a pest repellent product for humans or pets, and other uses can also be utilized for applications such as insecticide, acaricidal, bactericidal, antibacterial, deodorizing and deodorizing.

Claims (8)

A powdery pest repellent composition comprising: selected from the group consisting of DEET, 3-(N-n-butyl-N-ethyl) alanine propionate and icaridin At least one of the group consisting of a pest repellent as an active ingredient; a stimulating agent containing an ethylene glycol solvent as an active ingredient; a moisture retaining agent containing talc as an active ingredient; and a citric acid compound as an active ingredient The oil absorbent, the ratio (a: b) of the compounding amount (a) of the moisture retaining agent to the compounding amount (b) of the oil component absorbent is 3:1 to 20:1 by weight. A powdery pest repellent composition according to the first aspect of the invention, wherein the glycol solvent is 1,3-butanediol. The powdery pest repellent composition according to item 1 or item 2 of the patent application, wherein the talc has an apparent specific gravity of 0.4 to 0.6 g/cc as measured according to JIS K5101. The powdery pest repellent composition according to the first or second aspect of the patent application, wherein the talc has an average particle diameter of 20 μm or more. A powdery pest repellent composition according to claim 1 or 2, wherein the phthalic acid compound is anhydrous citric acid. A powdery pest repellent composition according to claim 1 or 2, wherein the phthalic acid compound has a specific surface area of 5 to 100 m ² /g. A powdery pest repellent composition according to item 1 or item 2 of the patent application, which does not contain an alcohol. A method for producing a powdery pest repellent composition comprising: comprising Ethyl Ester (DEET), 3-(N-n-butyl-N-ethenyl)aminopropionic acid ethyl ester and Eka a pest repellent which is at least one of a group consisting of rutin as an active ingredient, and a mixing procedure of a stimulating tempering agent mixed with a glycol-based solvent as an active ingredient; and the mixture obtained by the mixing procedure is absorbed in 矽An absorption procedure of an oil component as an active ingredient; an addition process of a moisture retaining agent containing talc as an active ingredient to an oil component absorbent having an absorption procedure; and a mixture of components obtained by the addition procedure a stirring stirring procedure, the ratio (a) of the amount of the moisture retaining agent added in the adding procedure to the amount (b) of the oil-absorbing absorbent in the absorption procedure is a weight ratio of 3:1 ~20:1.