JP2009114117A - Aqueous liquid composition for controlling acarid and method for controlling acarid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aqueous liquid composition which is used for controlling acarid, exhibits a high acarid-controlling effect at room temperature, can uniformly impart an acarid-controlling effect to targets, is aqueous, and has high environmental suitability and the like, and is highly general, and to provide a method for controlling acarid with the same. <P>SOLUTION: This aqueous liquid composition for controlling the acarid is characterized by comprising the following ingredients (A), (B) and (C). (A) is one or more compounds selected from tertiary amines each having one or more 8C to 22C long chain hydrocarbon groups (wherein, the long chain hydrocarbon groups may be divided with one or more amide groups, ester groups or ether groups) in the molecule, the neutralized products of the tertiary amines, and the quaternary products of the tertiary amines. (B) is a specific dibasic acid diester compound. (C) is one or more water-soluble solvents selected from the group consisting of 2C to 6C monohydric alcohols, 2C to 6C multi-hydric alcohols, and specific glycol ether compounds. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an aqueous liquid composition for tick control that is suitably used for various types of mite control, and a tick control method using the same.

Feces and carcasses excreted by dust mites, a type of tick, are known to cause allergies, and some other mite species may suck blood or cause itching due to infestation. There is something to do. Therefore, killing (repelling) and avoiding these mites, that is, mite control, is an important issue in public health.
However, the current residential environment with high airtightness is becoming more prone to the growth of dust mites, so that many household items in the house, such as bedding and carpets, are contaminated with mite allergens. It has become to. Also, against the backdrop of pet booms and the like, it is feared that ticks that infest or suck blood from livestock and pets may also affect humans.

In view of the above background, methods for controlling ticks that can provide a high ticking effect have been studied.
For example, Non-Patent Document 1 reports that mite killing can be performed by heating with hot water of 50 ° C. or higher.
Patent Document 1 discloses a tick control effect using a quaternary ammonium salt containing a mono- or di-long-chain hydrocarbon group as a main base, which has a softening effect and an antistatic effect on a textile product, and has high environmental compatibility. A technique for obtaining the above is disclosed.
On the other hand, in Patent Document 2, as an oily composition for controlling mites, a cationic surfactant-based antibacterial agent, a compound such as an organic phosphorus-based insecticide or a pyrethroid-based insecticide having an anti-mite property, and a nonionic A combination of a surfactant and an organic solvent is disclosed.

Furthermore, Patent Document 3 proposes a composition (an aqueous composition is also possible) in which an indoor mite attraction inhibitor is used in combination with an organic compound having a nitrogen atom in the molecule. A technique in which a cyclic aliphatic carboxylic acid ester compound is used in combination with a contained quaternary ammonium salt is disclosed.
On the other hand, Patent Document 4 discloses a technique in which sebacic acid ester, which is a linear aliphatic carboxylic acid ester, is used alone as an acaricide.
G. Lindy, “J. Allergy Clin. Immunol.”, Vol. 90,599 (1992) JP-A-61-212501 Japanese Patent Laid-Open No. 11-246308 JP 2005-137868 A JP 2005-53827 A

However, in the method of Non-Patent Document 1, it is indispensable to heat for the effect expression, so the usage scene is limited. Moreover, since there is no effect which repels ticks, the effect obtained is temporary.
In addition, as a result of detailed investigations by the present inventors, the techniques of Patent Documents 1 and 4 using a cationic surfactant or an aliphatic carboxylic acid ester compound alone cannot provide a sufficient mite control effect. It has been found. Furthermore, the composition disclosed in Patent Document 2 is a highly oily product obtained by dissolving an organophosphorus insecticide or a pyrethroid insecticide in an organic solvent, and is not preferable in terms of environmental compatibility. Also, it is inferior in versatility.
In Example 10 of Patent Document 3, an aqueous composition is disclosed in which a di-long-chain hydrocarbon group-containing quaternary ammonium salt is used in combination with methyl dihydrojasmonate that is a cyclic aliphatic carboxylic acid ester. According to the evaluation by the inventors, even when such a cycloaliphatic carboxylic acid ester is used in combination with a cationic surfactant, the synergistic effect is insufficient.

  Further, according to further studies by the present inventors, when washing an object such as bedding or clothing using a composition containing a component having a tick control effect, depending on the part of the bedding or clothing after washing. There was a difference in the mite control effect, and the desired mite control effect could not be obtained. This is presumed to be because the adhesion state of the component having a tick extermination effect differs depending on the difference in the part of the object after washing. Therefore, it is desired that a tick control effect can be uniformly imparted to any part of the object.

  The present invention has been made in view of the above circumstances, and at the same time exerts a high mite-controlling effect at room temperature, and at the same time can uniformly impart a tick-controlling effect to an object, and is water-based and environmentally compatible. An object of the present invention is to provide a tick control aqueous liquid composition that is high and versatile, and a tick control method using the same.

As a result of intensive studies, the present inventors have completed the present invention by using a specific dibasic acid diester compound such as a tertiary amine and a specific water-soluble solvent in combination.
That is, the aqueous liquid composition for tick control of the present invention is characterized by containing the following components (A), (B) and (C).
(A) One or more long chain hydrocarbon groups having 8 to 22 carbon atoms (however, the long chain hydrocarbon group may be divided by an amide group, an ester group or an ether group) in the molecule. One or more compounds selected from the group consisting of a tertiary amine, a neutralized product of the tertiary amine, and a quaternized product of the tertiary amine.
(B) A dibasic acid diester compound represented by the following general formula (I).
(C) One or more water-soluble solvents selected from the group consisting of monohydric alcohols having 2 to 6 carbon atoms, polyhydric alcohols having 2 to 6 carbon atoms, and glycol ether compounds represented by the following general formula (II) .

［式（Ｉ）中、Ｒ^１１は、炭素数４〜８の直鎖状もしくは分岐鎖状のアルキレン基を表し；Ｒ^１２およびＲ^１３は、それぞれ独立して炭素数２〜８の炭化水素基を表す。］

[In formula (I), R ¹¹ represents a linear or branched alkylene group having 4 to 8 carbon atoms; R ¹² and R ¹³ each independently represents a hydrocarbon group having 2 to 8 carbon atoms; Represents. ]

［式（ＩＩ）中、Ｒ^１は、炭素数２〜６のアルキル基又はフェニル基を表し；Ｒ^２は炭素数２又は３のアルキレン基を表し；ｘは平均付加モル数を表し、２〜３の数である。］

[In Formula (II), R ¹ represents an alkyl group having 2 to 6 carbon atoms or a phenyl group; R ² represents an alkylene group having 2 or 3 carbon atoms; x represents an average number of added moles; The number is 3. ]

In the aqueous liquid composition for tick control of the present invention, the component (B) is a dibasic acid diester in which R ¹¹ in the general formula (I) represents a linear or branched alkylene group having 4 carbon atoms. A compound is preferred.
The mite control method of the present invention is characterized by using the aqueous liquid composition for mite control of the present invention in a washing and rinsing step of a textile product.

  According to the present invention, a mite-controlling effect is exhibited at room temperature, and at the same time, a mite-controlling effect can be uniformly imparted to an object, and it is water-based, has high environmental compatibility, and is highly versatile. An aqueous liquid composition for controlling and a tick controlling method using the same can be provided.

≪Aqueous liquid composition for tick control≫
The aqueous liquid composition for mite control of the present invention (hereinafter sometimes simply referred to as “aqueous liquid composition”) includes a specific tertiary amine, a neutralized product of the tertiary amine, and a quaternary of the tertiary amine. One or more compounds (A) selected from the group consisting of compounds, a dibasic acid diester compound (B) represented by the general formula (I), a specific monohydric alcohol, a specific polyhydric alcohol, and And one or more water-soluble solvents (C) selected from the group consisting of glycol ether compounds represented by the general formula (II).

[Compound (A)]
In the aqueous liquid composition of the present invention, (A) a long chain hydrocarbon group having 8 to 22 carbon atoms (however, the long chain hydrocarbon group may be divided by an amide group, an ester group or an ether group). ) One or more compounds selected from the group consisting of tertiary amines in the molecule, neutralized tertiary amines and quaternized tertiary amines (hereinafter referred to as component (A)) ).
Among these, the neutralized product of the tertiary amine and the quaternized product of the tertiary amine are preferable from the viewpoint that a higher mite control effect can be obtained, and the quaternized product of the tertiary amine, that is, quaternary ammonium. A salt is more preferred.
The component (A) is a component excellent in environmental compatibility and versatility, and is a component that can be easily handled in formulation.

The long chain hydrocarbon group having 8 to 22 carbon atoms may be saturated or unsaturated.
The carbon number of the long-chain hydrocarbon group is more preferably 10-20, and still more preferably 10-18. With such a carbon number, a higher mite control effect can be obtained, and there are concerns about skin irritation caused by the carbon chain length being too short, and water-soluble solvents resulting from the carbon chain length being too long. Concern about a decrease in dispersibility and solubility in (C) can be suppressed.

However, the long chain hydrocarbon group may be separated by an amide group, an ester group or an ether group. Specifically, the long chain hydrocarbon group is at least one selected from the group consisting of an amide group (—NHCO—), an ester group (—COO—) and an ether group (—O—) in the chain. It may have a seed splitting group, and the chain may be split by the splitting group. Having a splitting group is preferable from the viewpoint of improving biodegradability. The long-chain hydrocarbon group may be divided at one place by the dividing group, or may have two or more dividing groups, and may be divided at two or more places.
In addition, when it has these splitting groups in a chain | strand, the carbon atom which exists in a splitting group shall count to carbon number of this long chain hydrocarbon group.

Further, the long chain hydrocarbon group having 8 to 22 carbon atoms may contain a benzene ring, and in that case, the carbon atom present in the benzene ring is also counted as the carbon number of the long chain hydrocarbon group.
When the component (A) includes a benzene ring, the benzene ring may be present separately from the long chain hydrocarbon group having 8 to 22 carbon atoms.

The long chain hydrocarbon group is usually derived from industrially used beef tallow-derived non-hydrogenated fatty acids, fatty acids obtained by hydrogenation or partial hydrogenation of unsaturated parts, palm coconut, oil coconut and other plants. It is introduced by using an unhydrogenated fatty acid or fatty acid ester, or a fatty acid or fatty acid ester obtained by hydrogenation or partial hydrogenation of an unsaturated portion.
When the long-chain hydrocarbon group is unsaturated, the position of the double bond may be anywhere, but when there is one double bond, the position of the double bond is long. It is preferable that it is the center of the chain hydrocarbon group or distributed around the median value.

  Specific examples of the component (A) include tertiary amines represented by the following general formulas (III) to (V), neutralized products of the tertiary amines, and quaternized products of the tertiary amines. Can be mentioned.

In the above formula, R ³ is a saturated or unsaturated linear or branched hydrocarbon group having 8 to 22 carbon atoms, preferably 10 to 20 carbon atoms, which does not contain a separating group such as an ester group.
R ⁵ is an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, or — (CH ₂ —CH (Y) —O) _{n ′} —H (wherein Y is a hydrogen atom or CH ₃ , and n ′ is 2 to 3).
R ⁴ is the same as R ³ or R ⁵ .
On the other hand, R ⁶ has at least one splitting group of ester group, amide group and ether group in the chain, and is saturated with 8 to 22 carbon atoms, preferably 10 to 20 carbons split by this splitting group. Alternatively, it is an unsaturated linear or branched hydrocarbon group.
R ⁷ and R ⁸ are each independently the same as R ⁶ or R ⁴ .

Examples of the neutralized product of the tertiary amine include organic acid salts such as hydrochlorides, sulfates, phosphates, and citrates of tertiary amines represented by the general formulas (III) to (V). Specific examples include didecyl monomethylamine hydrochloride and stearyldimethylamine hydrochloride.
Of the tertiary amines, neutralized products of the tertiary amines, and quaternized products of the tertiary amines, quaternized products, that is, quaternary ammonium salts are most preferable. Specifically, didecyldimethyl chloride is used. Ammonium, benzalkonium chloride, benzethonium chloride, stearyltrimethylammonium chloride, palmityltrimethylammonium chloride, alkyltrimethylammonium chloride (mixture of stearyltrimethylammonium chloride and palmityltrimethylammonium chloride, trade name: ARCARD T-800 (Lion Akzo) N, N-dialkaloyloxyethyl-N-hydroxyethylammonium sulfate (carbon number of alkaloyl group C16: 20% by mass, C18: 40% by mass, C18F1: 40% by mass; trade name: TES-85E ( Lion Akzo))) and the like.

In addition, when manufacturing a quaternary ammonium salt industrially, a trace amount of inorganic salts, such as sodium chloride, may be produced | generated mainly as a by-product in a quaternization process.
The quaternary ammonium salt that can be used in the present invention contains trace amounts of by-products such as inorganic salts derived from the production process, as is known in the industry that uses quaternary ammonium salts. Also good. Further, the quaternary ammonium salt may be supplied as a mixture with ethanol, isopropanol, ethylene glycol or the like often used as a quaternization reaction solvent.

Further, “TES” means a fatty acid having an alkanolamine having a structure represented by the following general formula (VI), an iodine value of 10 to 80, and an unsaturated group cis-isomer ratio of less than 50% by mass; / Or esterified product with fatty acid methyl ester; neutralized product of the esterified product, or a reaction product obtained by quaternizing the esterified product with a quaternizing agent.
This representative manufacturing method is described in Example 1 of Japanese Patent Application Laid-Open No. 2003-12471.

In formula (VI), at least one of R ^a , R ^b and R ^c is a hydrocarbon group having 2 to 6 carbon atoms and having one or more hydroxy groups. A, B, and C are each independently an oxyalkylene group having 2 to 6 carbon atoms, and the subscripts l, m, and n are each independently an integer of 0 to 10.

(A) A component may be used individually by 1 type and may use 2 or more types together.
The content ratio of the component (A) in the aqueous liquid composition of the present invention is preferably 1 to 30% by mass, more preferably 6 to 20% by mass, and still more preferably 6 to 18% by mass with respect to the total amount of the composition. . If it is at least the lower limit of the content, the mite control effect is further improved. On the other hand, when it is not more than the upper limit value, the blending balance with other components becomes good. Further, the aqueous liquid composition can be adjusted to an appropriate viscosity, and the storage stability is improved.

[Dibasic acid diester compound (B)]
The aqueous liquid composition of the present invention contains (B) a dibasic acid diester compound (hereinafter referred to as component (B)) represented by the following general formula (I).
By using the component (B) and the component (A) in combination, a higher mite control effect is exhibited.

［式（Ｉ）中、Ｒ^１１は、炭素数４〜８の直鎖状もしくは分岐鎖状のアルキレン基を表し；Ｒ^１２およびＲ^１３は、それぞれ独立して炭素数２〜８の炭化水素基を表す。］

[In formula (I), R ¹¹ represents a linear or branched alkylene group having 4 to 8 carbon atoms; R ¹² and R ¹³ each independently represents a hydrocarbon group having 2 to 8 carbon atoms; Represents. ]

In the formula (I), R ¹¹ represents a linear or branched alkylene group having 4 to 8 carbon atoms, and is preferably a linear alkylene group (polymethylene group).
R ¹¹ has 4 to 8 carbon atoms, preferably 4 to 7 carbon atoms, and most preferably 4 carbon atoms. When it has 4 or more carbon atoms, the volatility is reduced and the durability of the mite control effect is improved. When the number of carbon atoms is 8 or less, formulation of an aqueous liquid composition is facilitated.

In the formula (I), R ¹² and R ¹³ each independently represent a hydrocarbon group having 2 to 8 carbon atoms.
R ¹² and R ¹³ each have 2 to 8 carbon atoms, preferably 2 to 4 carbon atoms, more preferably 2 to 3 carbon atoms, and most preferably 3 carbon atoms. When the number of carbon atoms is 2 or more, there is no possibility that methanol is generated by hydrolysis of the component (B), which is preferable in terms of environmental compatibility. When the number of carbon atoms is 8 or less, formulation of an aqueous liquid composition is facilitated.
The hydrocarbon group for R ¹² and R ¹³ is preferably an alkyl group or an alicyclic group, and particularly preferably an alkyl group. The alkyl group may be linear or branched.
R ¹² and R ¹³ may have different structures or the same structure.

Preferred examples of the component (B) include diethyl adipate, di-n-propyl adipate, diisopropyl adipate, di-n-butyl adipate, diisobutyl adipate, disec-butyl adipate, di-t-adipate Butyl, dipentyl adipate, dihexyl adipate, diheptyl adipate, dioctyl adipate, di (2-ethylhexyl) adipate;
Diethyl pimelate, di-n-propyl pimelate, diisopropyl pimelate, di-n-butyl pimelate, diisobutyl pimelate, di-sec-butyl pimelate, di-t-butyl pimelate, dipentyl pimelate, dihexyl pimelate, pimelic acid Diheptyl, dioctyl pimelate, di (2-ethylhexyl) pimelate;
Diethyl suberate, di-n-propyl suberate, diisopropyl suberate, di-n-butyl suberate, diisobutyl suberate, di-sec-butyl suberate, di-t-butyl suberate, dipentyl suberate, dihexyl suberate, suberic acid Diheptyl, dioctyl suberate, di (2-ethylhexyl) suberate;
Diethyl azelate, di-n-propyl azelate, diisopropyl azelate, di-n-butyl azelate, diisobutyl azelate, disec-butyl azelate, acid di-t-butyl, dipentyl azelate, dihexyl azelate, diheptyl azelate Dioctyl azelate, di (2-ethylhexyl) azelate;
Diethyl sebacate, di-n-propyl sebacate, diisopropyl sebacate, di-n-butyl sebacate, diisobutyl sebacate, disec-butyl sebacate, di-t-butyl sebacate, dipentyl sebacate, dihexyl sebacate, sebacate Examples include diheptyl, dioctyl sebacate, and di (2-ethylhexyl) sebacate.

Among these, the component (B) is preferably a dibasic acid diester compound in which R ¹¹ in the general formula (I) represents a linear or branched alkylene group having 4 carbon atoms. Diethyl adipate, diisopropyl adipate, and di (2-ethylhexyl) adipate are more preferred, and diisopropyl adipate is particularly preferred.

(B) A component may be used individually by 1 type and may use 2 or more types together.
The content ratio of the component (B) in the aqueous liquid composition of the present invention is preferably 0.5 to 12% by mass, more preferably 1 to 4% by mass, and 2 to 4% by mass with respect to the total amount of the composition. Further preferred. If it is at least the lower limit of the content, the mite control effect is further improved. On the other hand, when it is not more than the upper limit value, the blending balance with the component (A) is particularly good.

  In the present invention, the production method of component (B) is not particularly limited. For example, the component (B) is composed of an acyclic aliphatic dicarboxylic acid having 6 to 10 carbon atoms and a monohydric alcohol having 2 to 8 carbon atoms. Examples include induced ones.

  In the aqueous liquid composition of the present invention, the component (B) is used in combination with the component (A) in the presence of the component (A) because it is more easily adsorbed to the target for mite control than other ester compounds. In particular, it is considered that a high tick control synergistic effect is exhibited and an excellent tick control effect is obtained.

The mixing ratio of the component (A) and the component (B) in the aqueous liquid composition, (A) / (B) is (A) / (B) = 3/1 to 100/1 in mass ratio. It is preferable that (A) / (B) = 3/1 to 50/1.
When (A) / (B) is in the above-mentioned range, a sufficient mite-controlling effect can be obtained due to a higher synergistic effect, and a stable aqueous liquid composition can be easily prepared with an appropriate viscosity. Moreover, the said synergistic effect is acquired more as mass ratio of (A) / (B) is below an upper limit (100). On the other hand, when the mass ratio of (A) / (B) is not less than the lower limit (3), the compatibility between the (B) component and the later-described (C) component becomes good, and the stability is further improved.

[Water-soluble solvent (C)]
The aqueous liquid composition of the present invention is selected from the group consisting of (C) a monohydric alcohol having 2 to 6 carbon atoms, a polyhydric alcohol having 2 to 6 carbon atoms and a glycol ether compound represented by the following general formula (II) Containing one or more water-soluble solvents (hereinafter referred to as component (C)).
By using the component (C) in combination with the component (A) and the component (B), a tick control effect can be uniformly imparted to a target for mite control.

［式（ＩＩ）中、Ｒ^１は、炭素数２〜６のアルキル基又はフェニル基を表し；Ｒ^２は炭素数２又は３のアルキレン基を表し；ｘは平均付加モル数を表し、２〜３の数である。］

[In Formula (II), R ¹ represents an alkyl group having 2 to 6 carbon atoms or a phenyl group; R ² represents an alkylene group having 2 or 3 carbon atoms; x represents an average number of added moles; The number is 3. ]

In monohydric alcohol, carbon number is 2-6, and it is preferable that it is C2-C4.
In the polyhydric alcohol, the number of carbon atoms is 2 to 6, and preferably 2 to 4 carbon atoms.
In said formula (II), R < ¹ > is a C2-C6 alkyl group or a phenyl group, and it is preferable that it is a C2-C6 alkyl group.
R ² is an alkylene group having 2 or 3 carbon atoms, and is preferably an alkylene group having 2 carbon atoms (ethylene group).
x represents the average number of moles added and is a number of 2 to 3.

Preferred specific examples of the component (C) include monohydric alcohols such as ethanol, propanol, isopropanol, butanol and isobutanol; ethylene glycol, diethylene glycol, polyethylene glycol (preferably having a weight average molecular weight of 100 to 3000), propylene Polyhydric alcohols such as glycol, dipropylene glycol, polypropylene glycol (preferably having a weight average molecular weight of 150 to 500), butylene glycol, hexylene glycol, pentanediols, hexanediols; ethylene glycol monobutyl ether, diethylene glycol monobutyl ether And glycol ether compounds such as ethylene glycol monophenyl ether.
Among these, diethylene glycol monobutyl ether, ethanol, and ethylene glycol are more preferable because they can impart a more uniform mite control effect to an object.
Diethylene glycol monobutyl ether is preferred because the component itself has good environmental compatibility and the like, and it becomes easy to formulate an aqueous liquid composition.
In addition, as ethanol, fermented ethanol or synthetic ethanol can be used. Moreover, the modified alcohol which added various modifiers can also be used.

(C) A component may be used individually by 1 type and may use 2 or more types together.
The content ratio of the component (C) in the aqueous liquid composition of the present invention is preferably 0.1 to 90% by mass, more preferably 5 to 42% by mass, and 6 to 21% by mass with respect to the total amount of the composition. More preferably, 14-21 mass% is especially preferable. If it is at least the lower limit value of the content ratio, the mite control effect can be imparted more uniformly to the object. On the other hand, when it is not more than the upper limit value, the blending balance with other components becomes good. In addition, the storage stability is improved.

[Other ingredients]
The aqueous liquid composition for mite control according to the present invention contains an aqueous solvent as a solvent, and has excellent storage stability and high environmental compatibility.
As the aqueous solvent, water or water containing a water-soluble organic solvent can be used.
In this specification, the “water-soluble organic solvent” means immediately after its preparation (within 1 minute from the preparation) when the solvent is dissolved in ion-exchanged water under a temperature condition of 25 ° C. to obtain an aqueous solution having a concentration of 1% by mass. ) Solution is transparent. Here, “transparent” means that when a glass cell having an optical path length of 10 mm is used as a measurement cell and ion-exchanged water is added to the cell on the control side, the light transmittance at a wavelength of 660 nm is 95% or more. To do.

As water, any of tap water, ion exchange water, purified water, distilled water and the like can be used. Among these, water from which hardness components such as calcium ions and magnesium ions present in trace amounts and metal ions such as iron ions are removed is preferable, and ion-exchanged water is most preferable in consideration of cost and the like.
The water-soluble organic solvent can be used without particular limitation as long as it is other than the component (C) and satisfies the above conditions.

  In order to adjust the pH of the aqueous liquid composition of the present invention, hydrochloric acid, sulfuric acid, phosphoric acid, alkyl sulfuric acid, benzoic acid, paratoluenesulfonic acid, citric acid, malic acid, succinic acid, lactic acid, glycolic acid, ethylenediamine Short chain amine compounds such as acetic acid, triethanolamine, diethanolamine, dimethylamine, N-methylethanolamine, N-methyldiethanolamine, alkali metal hydroxides such as sodium hydroxide, alkali metal carbonates, alkali metal silicates, etc. A pH adjuster can be used.

In order to adjust the viscosity of the aqueous liquid composition of the present invention, a method in which the aqueous liquid composition contains an inorganic or organic water-soluble salt can be mentioned.
As such water-soluble salts, calcium chloride, magnesium chloride, sodium chloride, sodium p-toluenesulfonate, and the like can be used. Of these, calcium chloride and magnesium chloride are preferred.

In the aqueous liquid composition of the present invention, a nonionic surfactant may be blended as an optional component. Nonionic surfactants are used for the purpose of maintaining an aqueous liquid composition in a uniform transparent liquid or emulsion that is stable even after storage, and for the purpose of adjusting the viscosity of the aqueous liquid composition. If necessary, it is contained within a range that does not inhibit the mite control effect.
As the nonionic surfactant, for example, a polyoxyalkylene alkyl ether having an alkyl group or alkenyl group having 8 to 20 carbon atoms is preferable, and an average of 2 to 100 moles of alkylene oxide is more preferable. In particular, a nonionic surfactant represented by the following general formula (VII) is preferable.

In the formula (VII), R ¹⁴ is an alkyl or alkenyl group having 10 to 18 carbon atoms, preferably 12 to 18 carbon atoms.
R ¹⁵ is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group.
p is an average addition mole number, Preferably it is 2-100, More preferably, it is 10-80.
“—T—” consists of —O—, —N—, —NH—, —N (C ₂ H ₄ OH) —, —CON—, —CONH— and —CON (C ₂ H ₄ OH) —. One species selected from the group is shown.
Q is 1 or 2.
When “—T—” is any of —O—, —NH—, —N (C ₂ H ₄ OH) —, —CONH—, —CON (C ₂ H ₄ OH) —, q Is 1; when “—T—” is —N— or —CON—, q is 2.

  More preferable specific examples of the nonionic surfactant represented by the general formula (VII) include those represented by the following general formula (VIII).

In the formula (VIII), R ¹⁶ is the same as R ¹⁴ in the general formula (VII).
r is an average addition mole number of ethylene oxide, preferably 10 to 100, more preferably 20 to 80.

By containing such a nonionic surfactant, the aqueous liquid composition is less likely to cause phase separation, and the storage stability is often further improved.
The content ratio of the nonionic surfactant in the aqueous liquid composition is not particularly limited. For example, in the case of the aqueous liquid composition used in the mite control method of the present invention described later, 0.0001 to It is preferable that it is 10 mass%. When the content ratio is in the above range, sufficient storage stability is easily obtained without inhibiting the mite control effect.

When the aqueous liquid composition of the present invention further contains a polyvalent anionic substance as an optional component, a higher mite control effect may be obtained.
Specific examples of the polyvalent anionic substance include polyvalent carboxylic acids such as oxalic acid, tartaric acid, citric acid, 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP), aminotrimethylenephosphonic acid, or salts thereof. Is mentioned. Of these, 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP), aminotrimethylenephosphonic acid, or a salt thereof is more preferable.
Examples of the salt include sodium salt, potassium salt, ammonium salt, monoethanolamine salt, diethanolamine salt and the like.

The aqueous liquid composition of the present invention further includes an interface such as a pH buffer agent, an inorganic or organic water-soluble salt, a fragrance, an antioxidant, an antibacterial agent, a dye, and an antifoaming agent within a range that does not inhibit the mite control effect. Other ingredients that can be included in known aqueous liquid compositions containing active agents can be included.
Each optional component described above may be added at any timing during the preparation of the aqueous liquid composition.

The pH of the aqueous liquid composition is not particularly limited, and the pH of the aqueous liquid composition (stock solution) is preferably in the range of 3 to 8, and more preferably in the range of pH 4 to 7. Within this range, the chemical stability of the component (A), the component (B) and the component (C) (particularly the component (B)) is good, which is also preferable in terms of environmental compatibility.
In this specification, “pH of aqueous liquid composition” means that a stock solution of aqueous liquid composition is adjusted to 25 ° C., and a glass electrode type pH meter (product name: Horiba F-22, manufactured by Horiba, Ltd.) is used. Used, the value measured based on JIS K3362-1998 is shown.

The viscosity of the aqueous liquid composition is not particularly limited, and is 500 mPa · s or less from the viewpoint of dischargeability when discharging the aqueous liquid composition from the container and handling properties when throwing it into the washing machine. In view of the increase in viscosity due to storage aging, the viscosity immediately after blending is more preferably 200 mPa · s or less, and further preferably 5 to 50 mPa · s.
In particular, when a compound having two or more long-chain hydrocarbon groups is used as the component (A), the viscosity of the aqueous liquid composition increases rapidly according to the content ratio of the compound in the aqueous liquid composition. There is. In that case, it is preferable to adjust the viscosity by adding the water-soluble salts or adding the nonionic surfactant.
In the present specification, the “viscosity of the aqueous liquid composition” is determined by adjusting the aqueous liquid composition (stock solution) to 25 ° C. and using a B-type viscometer (manufactured by TOKIMEC). The reading after 2 rotors, 30 rpm, 10 revolutions is shown.

  As explained above, it contains the compound (A) such as the tertiary amine, the dibasic acid diester compound (B) represented by the general formula (I), and the specific water-soluble solvent (C). The aqueous liquid composition for mite control has a high mite control effect, and is preferable in terms of environmental compatibility and the like because it is aqueous, and has high versatility. Furthermore, the aqueous liquid composition for tick control can uniformly impart a tick control effect to an object. Therefore, tick control can be effectively performed by using the aqueous liquid composition for mite control.

≪Tick control method≫
The mite control method of the present invention is a method of using the above-described aqueous liquid composition for mite control of the present invention in a washing and rinsing step of textile products.

When the aqueous liquid composition of the present invention is used in the washing and rinsing step, the content ratio of the component (A) in the aqueous liquid composition is preferably 1 to 30% by mass, and 3 to 25% by mass. It is more preferable that the content is 6 to 20% by mass. When the content ratio of the component (A) is within such a range, a sufficient mite control effect can be obtained in the washing and rinsing process, and the viscosity of the aqueous liquid composition can be easily adjusted to an appropriate range. Above preferred.
Moreover, it is preferable that the content rate of the said (B) component in an aqueous liquid composition is 0.5-12 mass%, It is more preferable that it is 1-6 mass%, It is 2-4 mass% Is more preferable. When the content ratio of the component (B) is in such a range, a synergistic effect due to the combined use with the component (A) is easily obtained.
As a mixing ratio of the component (A) and the component (B) in the aqueous liquid composition, (A) / (B), as described above, (A) / (B) = 3/1 to 1 by mass ratio. 100/1 is preferable, and (A) / (B) = 3/1 to 50/1 is more preferable.
Moreover, it is preferable that the content rate of the said (C) component in an aqueous liquid composition is 5-42 mass%, It is more preferable that it is 6-21 mass%, It is further that it is 14-21 mass% preferable. (C) When the content rate of a component exists in such a range, in a washing | cleaning rinse process, the tick control effect can be provided more uniformly with respect to a target object.

In addition, when the aqueous liquid composition is added to water (washing liquid) in the washing and rinsing step, the concentrations of the components (A), (B) and (C) in this water, that is, each of the diluted processing liquids The concentration of ingredients is
The component (A) is preferably added to about 30 ppm or more, more preferably about 60 ppm or more, more preferably about 100 ppm or more, and the component (B) is preferably about 1 ppm or more, more preferably about 5 ppm or more, further preferably Is added so as to be about 10 ppm or more, particularly preferably about 20 ppm or more, and the component (C) is preferably added to about 10 ppm or more, more preferably about 50 ppm or more, and further preferably about 60 ppm or more.
When (A) component and (B) component are such a density | concentration, sufficient mite control effect will be acquired, and when (C) component is such a density | concentration, a tick control will be more uniformly with respect to a target object. An effect can be given.
Specifically, if the concentration of the component (A) is 6% by mass, the concentration of the component (B) is 2% by mass, and the concentration of the component (C) is 5% by mass, 30 mL of 30 L In addition to rinsing water, it may be diluted and used. In this case, the concentration of the component (A) in the diluted processing solution is 60 ppm, the concentration of the component (B) is 20 ppm, and the concentration of the component (C) is 50 ppm.

When the aqueous liquid composition is used in the washing and rinsing process, the pH of the aqueous liquid composition is preferably in the range of 2.5 to 8 and preferably in the range of pH 3 to 7. More preferably. Within this range, the chemical stability of the component (A), the component (B) and the component (C) (particularly the component (B)) is good, which is also preferable in terms of environmental compatibility.
When the aqueous liquid composition is used in the washing and rinsing step, the concentration of components to be blended for adjusting the viscosity of the aqueous liquid composition, for example, the water-soluble salts, is usually 0 to 1 mass in the aqueous liquid composition. % Is preferable.

  In the tick control method of the present invention, the textile product that is the target of mite control may be any product as long as it is considered that mites are present in the dwelling. For example, bedding such as futon sheets Garments, stuffed animals, carpets, mats and the like.

According to the mite control method of the present invention, that is, the method of using the aqueous liquid composition for mite control in the washing and rinsing step of the textile product, a high tick control effect can be exerted on the target textile product. .
Moreover, according to the tick control method of the present invention, a desired tick control effect can be uniformly imparted to any part of the object.

  The tick control method using the aqueous liquid composition for tick control of the present invention is not limited to the method of using the aqueous liquid composition for mite control in the washing and rinsing step, for example, the surface of an object for mite control A method in which the aqueous liquid composition is directly adhered to the surface is also suitable. Such a method includes, as a specific example, a method in which an aqueous liquid composition is accommodated in a spray container or the like and sprayed directly on the surface of the object; Examples include a method of applying an aqueous liquid composition to tissue or kitchen paper and applying it to the surface of an object for mite control, bedding such as bedding, clothing, carpets, carpets, tatami mats, stuffed animals It can be used for objects such as sofas, mats, wooden surfaces such as furniture and floors, and plastic product surfaces.

Next, although an Example and a comparative example are given, this invention is not limited at all by the following example. Unless otherwise specified, “water” means “ion exchange water” and “%” means “mass%”.
In the examples and comparative examples, the mite control effect was based on the “tick repellent rate” obtained by the following evaluation method.

[Examples 1 to 20, Comparative Examples 1 to 6]
Using the components shown in Table 1 and ion-exchanged water, an aqueous liquid composition was prepared by the following method so that each component had a concentration (mass%) shown in Tables 2 to 4.
In addition, the aqueous liquid composition was prepared so that the sum total of the component as described in each table | surface might be 100 mass%. Each component used was kept at 50 ° C.
(Preparation of aqueous liquid composition)
(A) component, (B) component, and (C) component were mixed, water was finally added, and the aqueous liquid composition of each example was prepared.
When blending water, it was blended slowly with high-speed stirring as necessary. And after setting this aqueous liquid composition to room temperature, it adjusted to pH 7.0 using 0.1N hydrochloric acid or 0.1N sodium hydroxide.
The pH was measured by adjusting the aqueous liquid composition to 25 ° C. and using a glass electrode type pH meter (product name: Horiba F-22, manufactured by Horiba, Ltd.). The measuring method was performed based on JISK3362-1998.

<Evaluation of tick removal effect>
Using the obtained aqueous liquid composition, the mite repellent rate was determined by the method described below.
In addition, the example of Tables 2-4 assumes the case where an aqueous liquid composition is used at the washing-rinsing process of a textile product.

(Preparation of evaluation sample)
Pour 30 L of tap water at 25 ° C. into a two-tank washing machine (product name: CW-C30A1), and add the aqueous liquid composition of each example to the dilution ratio shown in Tables 2 to 4 did.
Next, about 1 kg of a cotton skin shirt and 30 cm × 30 cm of a cotton cloth (Kanakin No. 3, Japan Standards Association) as a charge cloth were stirred for 3 minutes. Thereafter, after 1 minute of dehydration, the cotton cloth was taken out and dried naturally, and five pieces of cloth cut out into a circular shape with a diameter of 4 cm were prepared and used as evaluation samples.
As a control sample for the evaluation sample, a piece of cloth produced by pouring only tap water into the two-tank washing machine (without adding an aqueous liquid composition) and processing in the same manner as described above was used.

(Measurement of tick repellency)
According to the method described on page 126 of “Development and application of animal repellent (CMC, (1999))”, the mite repellent rate was determined to determine the mite control effect.
Specifically, five pieces of the evaluation sample cloth pieces prepared above were placed in the petri dish (1), and 0.05 g of a mite-free medium was placed on the cloth pieces.
Next, this petri dish (1) is placed in the center of a petri dish (2) having a diameter of 9 cm, and a medium in which about 10,000 leopard mites are grown between the petri dish (1) and the petri dish (2) is uniformly spread, and 25 ° C. The sample was left for 24 hours in a total dark state at a relative humidity of 75% RH.
After 24 hours, the number of ticks present in the petri dish (1) was counted with a stereomicroscope (sample test).
On the other hand, a test was performed in the same manner as the above-described sample test using a control sample cloth (control test).
And the mite repellent rate (%) was calculated | required by the following formula.

  Tick repellent rate (%) = (number of ticks in control test−number of ticks in sample test) / (number of ticks in control test) × 100

The mite repellent rate (%) obtained by this test is desirably about 50% or more, and it can be determined that such a repellent rate has a significant mite control effect.
In the evaluation of the mite extermination effect, the average value (%) of the mite repellent rate in five pieces of the cloth of the evaluation sample was obtained and the evaluation was performed. The results are shown in Tables 2-4.

<Evaluation of uniformity of mite control effect>
Evaluation of the uniformity of the mite control effect is based on the following formula, from the mite repellent rate (%) of each of the five pieces of the evaluation sample obtained by the above measurement. A count (CV;%) was calculated, and the evaluation was performed based on the following uniformity standard. The results are shown in Tables 2-4.

  Tick repellent rate variation count (CV;%) = standard deviation of mite repellent rate in 5 pieces of cloth / average value of mite repellent rate in 5 pieces of cloth × 100

(Standard for uniformity)
A: CV (%) was 15% or less.
A: CV (%) was more than 15% and less than 25%.
Δ: CV (%) was more than 25% and less than 30%.
X: CV (%) was 30% or more.

As shown in Tables 2 to 3, in the aqueous liquid compositions of Examples 1 to 20 according to the present invention, in which the (A) component, the (B) component, and the (C) component are used in combination, the remarkably high tick control effect is obtained. It was recognized and it was confirmed that the mite-controlling effect could be uniformly imparted to the object.
Moreover, since the liquid compositions of Examples 1 to 20 are aqueous, they have high environmental compatibility and high versatility.

As shown in Table 4, it was confirmed that the aqueous liquid compositions of Comparative Examples 1 to 4 lacking the component (C) have poor uniformity of the mite control effect.
Further, the aqueous liquid composition of Comparative Example 5 lacking the component (B) has a low mite control effect, and the aqueous liquid composition of Comparative Example 6 lacking the component (A) was separated immediately after compounding, and thus could not be evaluated. .

Claims (3)

An aqueous liquid composition for controlling ticks, comprising the following components (A), (B) and (C):
(A) One or more long chain hydrocarbon groups having 8 to 22 carbon atoms (however, the long chain hydrocarbon group may be divided by an amide group, an ester group or an ether group) in the molecule. One or more compounds selected from the group consisting of a tertiary amine, a neutralized product of the tertiary amine, and a quaternized product of the tertiary amine.
(B) A dibasic acid diester compound represented by the following general formula (I).
(C) One or more water-soluble solvents selected from the group consisting of monohydric alcohols having 2 to 6 carbon atoms, polyhydric alcohols having 2 to 6 carbon atoms, and glycol ether compounds represented by the following general formula (II) .

[In formula (I), R ¹¹ represents a linear or branched alkylene group having 4 to 8 carbon atoms; R ¹² and R ¹³ each independently represents a hydrocarbon group having 2 to 8 carbon atoms; Represents. ]

[In Formula (II), R ¹ represents an alkyl group having 2 to 6 carbon atoms or a phenyl group; R ² represents an alkylene group having 2 or 3 carbon atoms; x represents an average number of added moles; The number is 3. ] 2. The tick-control aqueous solution according to claim 1, wherein the component (B) is a dibasic acid diester compound in which R ¹¹ in the general formula (I) represents a linear or branched alkylene group having 4 carbon atoms. Liquid composition.   A tick control method comprising using the aqueous liquid composition for tick control according to claim 1 or 2 in a washing and rinsing step of a textile product.