JPH05194110A - Repellent-containing body - Google Patents

Abstract

PURPOSE:To provide a repellent-containing body which can hold volatile insect repellent stably in the body for months. CONSTITUTION:A carrier, preferably filamentous carrier containing volatile insect repellent, preferably N,N-diethyl-m-toluamide is packed with a laminated material consisting of at least a part of an aluminum layer, a polyester layer and/or a cellophane layer to give the repellent-containing body. The repellent is incorporated into the carrier by dipping the carrier in the solution containing the repellent, or microcapsulating the repellent and bonding the microcapsules to the carrier with a binder. The thickness of individual layers is preferably 7 to 15mum in the aluminum layer, 10 to 15mum in the polyester layer and 20 to 40mum in the cellophane layer.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a repellent-containing body. More specifically, the present invention relates to a repellent-containing body capable of stably holding the volatile insect repellent contained therein for a long period of time.

[0002]

BACKGROUND OF THE INVENTION Mosquitoes, flies, cockroaches, fleas, mites, ants, bees, gnats, and tsutsugamushi larvae are so-called harmful insects (pests) that are considered harmful in the human living environment. The eradication of civilization seems to be extremely difficult even today. Many of these pests not only cause unpleasant symptoms such as itchiness and pain due to bites, but also mediate pathogens such as viruses and rickettsias and seriously affect their lives.

[0003] In addition, harmful insects such as flies and cockroaches that do not bite also transmit pathogens and have an unfavorable effect on the sanitary environment. The control of these pests has made great progress with the improvement of the social environment such as the maintenance of water and sewage systems, the maintenance of drainage channels, the maintenance of waste disposal as the source, and the use of effective chemicals for the control of pests. It was On the other hand, however, due to the complete air-conditioning and air-tightness of the housing structure, an environment suitable for growth of pests has emerged, and what had previously been generated only during a specific season grows throughout the year. It was On the other hand, drugs that have been effective for extermination have become a problem of environmental pollution, and their use has come to be restricted. Therefore, N, N-diethyl-m-toluamide, phthalic acid, which is a safe repellent that has excellent pest control / repellency effects and is safe to use in daily life with little problem of environmental pollution and side effects on humans / animals. Various volatile insect repellents such as dimethyl, 2-ethyl-1,3-hexanediol have been conventionally used by methods such as ointments, creams, sprays, and heat vaporization.

However, as is clear from the fact that the duration of action and effect of these volatile drugs is generally several hours to ten and several hours, these volatile drugs are stored for a long period of time in a normally open state. In this case, there is a problem that the drug gradually diffuses and the desired exterminating / repelling effect cannot be obtained at the time of use.

That is, an object of the present invention is to stably store the repellent for a long period of time, and particularly to improve the storage stability before the consumer uses it, that is, during the distribution inventory period. To provide a repellent-containing body.

[0006]

Specifically, the present invention provides a carrier containing a volatile insect repellent, and an aluminum layer, a polyester layer, and / or a cellophane layer for packaging the carrier, the aluminum layer being at least a part of the constituent layers. A repellent-containing body comprising a packaging material containing.

The volatile insect repellent of the present invention is, for example, N, N
-Diethyl-m-toluamide, dimethyl phthalate, 2-
Ethyl-1,3-hexanediol, N, N-diethylphenylacetamide, dibutyl phthalate, butyl-
3,4-dihydro-2,2-dimethyl-4-oxo-2
-H-pyran-6-carboxylate, butoxy polypropylene glycol, 2-phenylcyclohexanol, butyl-3-methicine conineate, dimethyl carbate, dibutyl succinate, benzyl benzoate,
Butyl acetanilide, isoamyl-ethylene glycol acetamide, cyclohexane-alkanoic-carboxamide, bemethylbenzamide, dimethylacetamide, dimethyl-2-chlorobenzamide, n-propyl-N, N-diethyl-succinamate, 2-chloro-N, N- Diethylbenzamide, N-benzylpiperidine, pyrethroid, cinerine, jasmine, citronellol, acorus oil, tefrussia extract, garlic oil, orange peel extract, N-octyl-bicycloheptene dicarboximide, isocinchomeronate dinormalpropyl, 2, It means 3,4,5 bis (2-butenylene) tetrahydrofurfural and the like.

Among the volatile insect repellents of the present invention, among these, N, N-diethyl-m-toluamide, dimethyl phthalate, 2-ethyl-1,3-hexanediol,
N, N-diethylphenylacetamide is preferable, and N, N-diethyl-m-toluamide is particularly preferable.

Examples of the carrier of the present invention include a carrier made of a polymer resin and a fibrous carrier. Examples of the carrier made of a polymer resin include polyvinyl chloride, polyethylene, polyethylene terephthalate, polypropylene, polyamide, polyvinylidene chloride, polyurethane and the like. Examples of the fibrous carrier include cloth, woven fabric, and knitted fabric made of synthetic fibers such as polyester, nylon, and acrylic. Of these, fibrous carriers are preferable as the carrier of the present invention, and among these, polyester and nylon are particularly preferable as the type of fiber, and woven and knitted are preferable as the shape. Specific examples include pantyhose, socks, woven and knitted cloth, clothes and the like.

Here, as the polyester, for example, polyethylene terephthalate or the like is used, as the nylon, for example, polyamides such as nylon 6, nylon 66 or the like is used, and as the acryl, polyacrylonitrile or the like made of acrylic acid ester, acrylonitrile, acrylamide or the like is used. , But not limited to these synthetic fibers, cotton, hemp,
Natural fibers such as silk are also included in the fibrous carrier of the present invention.

As a method of incorporating a volatile insect repellent into such a carrier, a method of kneading the polymer resin or fiber itself with the insect repellent, or a method of impregnating the polymer resin or fiber in a solution containing the repellent, There is a method of impregnating a polymer resin or fiber in the vapor atmosphere with the insect repellent, a method of encapsulating the insect repellent in a suitable coating and microencapsulating it, and then fixing it to the polymer resin or fiber with a suitable binder. .. In the present invention, in addition to the above methods, it is possible to use a known method conventionally used for incorporating an insect repellent or the like into a carrier, and an insect repellent to be used or a method depending on the type of the carrier may be used. it can.

Among them, the method of immobilizing microcapsules coated with a suitable film of an insect repellent with a suitable binder exhibits a sufficient repellent effect of the insect repellent on the surface of a carrier containing a volatile insect repellent. Therefore, it is possible to maintain the effective concentration required, which is preferable.

The amount of volatile insect repellent is, for example, N, N
In the case of -diethyl-m-toluamide, it is desirable that 0.1 mg / g or more is present on the surface of the treated carrier, and the optimum amount is 0.2 to 1.0 mg / g.

The packaging material of the present invention is a packaging material for packaging the carrier obtained as described above, which contains an aluminum layer, a polyester layer, and / or a cellophane layer in at least a part of its constituent layers. Examples of other layers constituting such a packaging material include a polyethylene layer, a polypropylene layer, a polyurethane layer, a polyvinylidene chloride layer, and the like. Among them, the polyethylene layer is preferable. In the present invention to include an aluminum layer or the like in at least a part of its constituent layers means that an aluminum layer or the like is present as at least one layer of the layers constituting the whole, not a part of the packaging material, In some cases, it may be configured alone. For example, a packaging material containing an aluminum layer is composed of three layers of polyethylene sheet-aluminum oxide-polyethylene sheet, and a packaging material containing a polyester layer is composed of two layers of polyester sheet-polyethylene sheet. However, the packaging material containing the cellophane layer is composed of two layers of cellophane sheet-polyethylene sheet, etc., or is composed of two layers, or three or more layers of layers, and sandwich-like layers. Can be illustrated.

The thickness of the aluminum layer or the like is not particularly limited, but for the purpose of the present invention to prevent the emission of the volatile insect repellent and to keep the repellent stable for a long period of time, and during production and storage. From the viewpoint of handleability, the thickness of the aluminum layer is preferably about 5 to 20 μm, and particularly about 7 to 20 μm.
The thickness is preferably 15 μm. Further, in the case of the polyester layer, a thickness of about 5 to 20 μm is preferable,
Above all, a thickness of about 10 to 15 μm is preferable, and in the case of a cellophane layer, a thickness of about 10 to 60 μm is preferable,
Above all, a thickness of 20 to 40 μm is preferable. Further, as the thickness of the other layers constituting the packaging material, for example, in the case of a polyethylene layer, a preferable thickness is about 20 to 40 μm.

Here, examples of the polyester of the polyester layer include polyethylene terephthalate.

In the present invention, the carrier containing the above-mentioned volatile insect repellent is wrapped with the above-mentioned packaging material to obtain the repellent-containing body of the present invention. In the present invention, such a packaging means a packaging in which the volatile insect repellent contained in the carrier does not release to the outside by long-term storage, and, for example, the size of the packaged material depends on the type of packaging material used. Examples of the method include a method of melt-bonding a bag-shaped packaging material corresponding to the size by a heat compression method such as a heat sealer.

At this time, in addition to the carrier containing the volatile insect repellent, an oxygen absorbent, a water absorbent and the like can be simultaneously present.

Thus, the repellent-containing body of the present invention can be obtained.

[0020]

[Reference Example 1] Manufacture of polyester knitted fabric containing repellent 5 parts of N, N-diethyl-m-toluamide (hereinafter referred to as DEET) and 5 parts of nonionic surfactant (polyoxyethylene (5-107) nonylphenyl ether) Was added, and 90 parts of water was further added to form a processing bath. This processing bath 2
Polyester (polyethylene terephthalate) fiber (Woolie 150/48) was immersed in a ratio of 1 part to 5 parts and treated at 90 ° C. for 120 minutes. The amount of DEET contained in the treated fiber was 25 mg / g. This fiber was fixed to the back of a rat from which a knitted knit fabric had been plucked, and left for 5 hours in a cage (70 cm × 30 cm × 50 cm) containing 300 squid (female) for 2 weeks after emergence.
After that, the rat was taken out of the cage, and the blood-sucking mark on the back was observed with a magnifying glass at a magnification of 20 times. Separately, an untreated polyester fiber (Woolie 150/48) was used to obtain a knit, which was similarly tested as a control. As a result, the treated fiber showed a remarkable repellent effect as compared with the control (untreated fiber).

In addition, this treated fiber is separately specified in JIS L02.
17 Washing method specified in Washing method 103, and DEET
The content was measured. As a result, 80% of the content before washing was retained even after 30 times of washing, showing sufficient washing durability.

[0022]

Reference Example 2 Production of Repellent-Containing Polyamide Knitted DEET was microencapsulated with a melamine resin and fixed to a nylon pantyhose (knitted fabric) as a fibrous carrier with an acrylic polymer emulsion adhesive.
The DEET content at this time was 30 mg / g knitted fabric. As a control, an untreated knitted fabric was used, and a repellent effect against mosquitoes was tested in the same manner as in Reference Example 1, and a sufficient effect was obtained.
As a result of performing the same washing as in Reference Example 1, the residual content of DEET after 5 washings was 20 mg / g knitted fabric.

At this time, the repellent effect against mosquitoes was remarkably effective as compared with the untreated case.

[0024]

Examples 1 and 2 Fibers treated in Reference Example 1 (DEET
Content 25 mg / g polyester knit) and fibers treated in Reference Example 2 (DEET content 30 mg / g nylon knit)
Is hermetically sealed with a packaging material composed of aluminum foil-polyethylene laminate, and the repellent-containing package of the present invention (Example 1,
2) was obtained. Specifically, polyethylene (15 μm) -aluminum oxide (9 μm) -polyethylene (20 μm)
The sheet material consisting of the above was heat-sealed into a bag shape, and the treated fiber was sealed in the bag.

With respect to the obtained two kinds of repellent-containing bodies and the above-mentioned two kinds of treated fibers (comparative example (polyester fiber) and comparative example (polyamide fiber)) which are not packaged and are in an open state, before storage and respectively 8 The DEET content in the treated fiber when stored for 1 year at 37 ° C, 60 ° C, 37 ° C, room temperature was measured. The results are shown in Tables 1 and 2.

[0026]

[Table 1]

From Table 1, the repellent-containing body of the present invention is 60
It can be seen that the insect repellent is retained safely even at 1 ° C for 1 year.

[0028]

[Table 2]

From Table 2, the repellent-containing body of the present invention is 60
It can be seen that the volatile insect repellent is retained safely even after storage at ℃ for 1 year.

[0030]

Examples 3 to 6 As in Examples 1 and 2, the fibers treated in Reference Example 1 and the fibers treated in Reference Example 2, respectively,
A sheet material made of polyethylene terephthalate (thickness 12 μm) and polyethylene (thickness 40 μm) is heat-sealed and hermetically packaged in a bag-shaped packaging material, and the repellent-containing body of the present invention (Example 3-polyester fiber, Example). 4-polyamide fiber) was produced.

Similarly, a sheet material made of cellophane (thickness: 20 μm) and polyethylene (thickness: 40 μm) is heat-sealed to form a bag, and each fiber is hermetically sealed in a packaging material, and the repellent-containing body according to the present invention. (Example 5-polyester fiber, Example 6-polyamide fiber) were obtained. Obtained 4
About 8 kinds of repellent-containing bodies (Examples 3 to 6) and two types of treated fibers (comparative example (polyester fiber) and comparative example (polyamide fiber)) that are unpackaged and open before storage and at 8 ° C. The DEET content in the treated fiber when stored at room temperature, 37 ° C. and 60 ° C. for 1 year was measured. The results are shown in Tables 3 to 6.

As shown in these results, the packaging materials containing polyethylene terephthalate and cellophane as the constituent layers exhibited good storage stability.

[0033]

[Table 3]

[0034]

[Table 4]

[0035]

[Table 5]

[0036]

[Table 6]

Claims (4)

[Claims] 1. A repellent-containing body comprising a carrier containing a volatile insect repellent and a packaging material for packaging the carrier, the packaging material including an aluminum layer, a polyester layer, and / or a cellophane layer in at least a part of its constituent layers. .. 2. The volatile insect repellent is N, N-diethyl-
The repellent-containing body according to claim 1, which is m-toluamide. 3. The repellent-containing body according to claim 1, wherein the carrier is a fibrous carrier. 4. The repellent-containing body according to claim 3, wherein the fibrous carrier is a polyester knit or a nylon knit.