KR102349844B1 - Insect repellent composition with improving anti-insect property and anti-insect screen using the same - Google Patents

Abstract

Provided are an insect-repellent composition and an insect-repellent screen using the same. The insect repellent composition comprises 2.0 to 8.0 wt% of terpene alcohol; 2.0 to 8.0 wt% of terpene; 0.5 to 2.0 wt% of anethol; and 0.5 to 2.0 wt% of phenolic aldehyde. According to the present invention, a user can effectively prevented from insects.

Description

Insect-repellent composition with improved insect-repellent properties and insect-repellent screen using the same

The present invention relates to an insect-repellent composition and an insect-repellent screen using the same.

In general, buildings are provided with windows for ventilation and ventilation. However, when the window is opened, external insects such as mosquitoes and moths may enter. The term "infestation" is meant to include pests and beneficial insects such as insects, spiders, and other exotic species. An anti-insect screen is usually installed on a window to prevent the introduction of such insects. The insect screen is composed of thin wire, etc. in a woven form to have outdoor visibility and ventilation characteristics, but can prevent the inflow of insects having a size larger than that of the woven mesh.

However, although the insect screen can block the ingress of insects into the room to some extent, insects having a small size may be introduced into the room along the gaps in the window frame. In addition, a large number of insects are attracted to the light (light), so they are hung on the screen. In this case, the appearance is not good, but it can increase the possibility of insects entering along the crevice of the window frame.

That is, the conventional insect screen is an effective means for blocking the inflow of insects indoors at a low cost, but there is a problem in that it cannot completely block the inflow of insects. This is because, as described above, it is difficult to completely seal the gap due to the structure of the window, and a significant number of insects are attracted to the light shining through the window.

Accordingly, the problem to be solved by the present invention is to provide an insect screen or insect screen that can block not only the inflow of insects but also the attraction.

Another problem to be solved by the present invention is to provide an insect repellent composition for this.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Insect repellent composition according to an embodiment for solving the above problems is 2.0% by weight to 8.0% by weight of terpene alcohol; 2.0 wt% to 8.0 wt% terpene; 0.5% to 2.0% by weight of anethol; and 0.5% to 2.0% by weight of phenolic aldehyde.

In some embodiments, the insect repellent composition is a noni leaf extract 1.0% by weight to 3.0% by weight; and 1.0% by weight to 3.0% by weight of cotton seed extract.

In some embodiments, the insect repellent composition is glycerin; a first oil-based surfactant; and a second oil-based surfactant.

The terpene alcohol may include linalool, and the terpene may include limonene.

In addition, the phenolic aldehyde may include cinnam aldehyde.

The viscosity of the insect repellent composition may be 20,000cp to 35,000cp.

Insect screen according to an embodiment of the present invention for solving the other problem is a mosquito net comprising a wire; and the insect repellent composition described above coated on the insect screen.

The wire may have a groove or a protrusion formed on an outer circumferential surface.

Details of other embodiments are included in the detailed description.

According to embodiments of the present invention, it is possible to provide an insect repellent composition that can effectively block the access of insects, such as mosquitoes.

In particular, the insect repellent composition has a viscosity that can be effectively coated on a net-shaped insect repellent member and can exhibit an insect repellent effect for a long time.

In addition, the insect repellent screen coated with the insect repellent composition can prevent the inflow of insects as well as access, attraction, adhesion, and the like.

Effects according to the embodiments of the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a perspective view of an insect repellent screen according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform the person of the scope of the invention, and the present invention is only defined by the scope of the claims. That is, various changes may be made to the embodiments presented by the present invention. It should be understood that the embodiments described below are not intended to limit the embodiments, and include all modifications, equivalents, and substitutes thereto.

The size, thickness, width, length, etc. of the components shown in the drawings may be exaggerated or reduced for convenience and clarity of description, so that the present invention is not limited to the illustrated form.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

Spatially relative terms 'above', 'upper', 'on', 'below', 'beneath', 'lower', etc. As illustrated, it may be used to easily describe a correlation between one element or components and another device or components. Spatially relative terms should be understood as terms including different orientations of the device when used in addition to the orientations shown in the drawings. For example, when an element shown in the drawing is turned over, an element described as 'below or beneath' of another element may be placed 'above' of the other element. Accordingly, the exemplary term 'down' may include both the direction of the bottom and the top.

In this specification, 'and/or' includes each and every combination of one or more of the recited items. The singular also includes the plural, unless the phrase specifically states otherwise. As used herein, 'comprises' and/or 'comprising' does not exclude the presence or addition of one or more other components in addition to the stated components. Numerical ranges indicated using 'to' indicate numerical ranges including the values stated before and after them as lower and upper limits, respectively. 'About' or 'approximately' means a value or numerical range within 20% of the value or numerical range recited thereafter.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an insect repellent screen according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the insect repellent member of FIG. 1 .

1 and 2 , the insect screen 10 according to the present embodiment may include a frame 100 and an insect screen member 200 (or an insect screen) coupled to the frame 100 . The frame 100 may have a window frame or chassis shape configured to be coupled to the insect repellent member 200 made of wires, and the frame 100 may use a known technology, and a detailed description thereof will be omitted.

The insect repellent member 200 may include net-shaped wires. The wires may extend in a transverse direction, a longitudinal direction, and/or a diagonal direction to be twisted or intersected with each other. For example, it may have a shape as shown in FIG. 1 . For another example, although not shown in the drawings, the wires extending in the first direction and the second direction may be woven while crossing each other one by one.

Accordingly, the wires crossing each other may form a mesh or an opening having a predetermined size. As described above, the insect screen 10 can prevent the introduction of larger-sized insects by using the mesh size formed by the wires.

The material of the wire is not particularly limited as long as it has sufficient strength, but may be made of a metal material such as aluminum, iron, copper, or an alloy thereof, or a plastic synthetic resin material.

In an exemplary embodiment, the insect repellent composition may be coated on the surface of at least some of the wires. As the coating, dip coating or spray coating may be used, but the present invention is not limited thereto. The inventors of the present invention have completed the present invention by paying attention to the fact that when the insect repellent composition including a predetermined composition is applied and coated on the surface of the wire of the insect repellent screen 10, the ingress of insects as well as the access of the insects can be blocked. Hereinafter, the insect repellent composition is demonstrated.

The insect repellent composition may include terpene alcohol, terpene, anethol and a phenolic aldehyde. In an exemplary embodiment, the insect repellent composition comprises 2.0 wt% to 8.0 wt% of terpene alcohol, 2.0 wt% to 8.0 wt% of terpene, 0.5 wt% to 2.0 wt% of anethol and 0.5 wt% to 2.0 wt% of phenolic aldehyde may include

Terpenes are a generic term for carbohydrates having the general formula n and their derivatives. They are also called isoprenoids. Terpenes can be polymerized to multiples of isopropene.

In an exemplary embodiment, the terpene alcohol may include linalool, and the terpene may include limonene. Linalool may _{be expressed as C 10} H ₁₈ O, and limonene may be expressed as _{C 10} H _{16 .}

Phenolic aldehyde is a generic term for phenol compounds having an aldehyde group (-CHO). The material of the phenolic aldehyde is not particularly limited, but may include cinam aldehyde in terms of stability. Cinamaldehyde can be expressed as C ₆ H _{5 CH=CHCHO.} Anethole may be expressed as _{C 10} H _{12 O.}

In addition, the insect repellent composition may further include glycerin. Glycerin is an aliphatic trihydric alcohol. Glycerin may be expressed as _{C 3} H ₅ (OH) _{3 .} The content of glycerin may be about 1.0 wt% to 8.0 wt%, or about 1.0 wt% to 5.0 wt%.

As the organic solvent, alcohol and/or water may be used. Examples of the alcohol may include ethanol, but the present invention is not limited thereto. The content of alcohol and water may be the remainder, but as a non-limiting example, it may be about 30% to 50% by weight, or about 30% to 40% by weight.

In some embodiments, the insect repellent composition may further include a noni leaf extract and/or a cotton seed extract.

Noni ( Morinda citrifolia ) is a tropical plant native to the South Pacific, bearing white, potato-shaped fruits. The inventors of the present invention have completed the present invention by confirming that the insect repellent composition containing the leaf extract of Noni has more excellent insect repellent effect. The content of the noni leaf extract may be about 1.0 wt% to 3.0 wt%.

Cotton (cotton) is widely known as a textile crop. The inventors of the present invention have completed the present invention by confirming that the insect repellent composition containing the seed extract of cotton has more excellent insect repellent effect. Cottonseed extract may be provided in an oily form. The content of the cotton seed extract may be about 1.0 wt% to 3.0 wt%.

In some embodiments, the insect repellent composition may further include a first surfactant and a second surfactant that are different from each other as a surfactant. The first surfactant may include PEG-60 hydrocastor oil, and the second surfactant may include PEG-40 hydrocastor oil. Various surfactants were used in the process of completing the present invention, and as a result, when using the plurality of types of surfactants, it was confirmed that the durability of the coating layer using the insect repellent composition was excellent, and the present invention was completed. If only one of the first surfactant and the second surfactant is used, the durability of the coating layer may be deteriorated when exposed to a harsh external environment for a long time. For example, when exposed to direct sunlight for more than about 30 days, precipitates may occur in the coating layer. However, the present invention is not limited thereto.

The content of the first surfactant and the second surfactant may be 0.5 wt% to 3.0 wt%, or about 0.5 wt% to 2.0 wt%, respectively.

The insect repellent composition may further include a viscosity enhancing agent. As described above, the insect repellent composition according to the present invention is provided in a liquid form, but in order to be applied to the insect repellent screen 10, it may be implemented in the form of a coating layer after drying. In addition, if the viscosity is too low in the process of applying to the insect repellent screen 10, the insect repellent composition may flow down and it may be difficult to dry uniformly.

In this aspect, the viscosity (@25 ℃) of the insect repellent composition may be about 10,000cp to 50,000cp, or about 20,000cp to 35,000cp. If the viscosity of the insect repellent composition is too large or too small than the above range, uniform application and drying on the insect repellent member 200 may be difficult.

Examples of the viscosity enhancing agent include carboxymethyl cellulose (CMC), stearate, gelatin, xanthan gum, and the like, but the present invention is not limited thereto.

In some embodiments, the wire constituting the insect repellent member 200 may have a groove formed along the extending direction. In the wire having a substantially circular cross section, the surface area of the wire having grooves formed in at least part thereof may be increased. Accordingly, a larger amount of the insect repellent composition can be coated.

In addition, the insect repellent composition filled in the groove can maintain its state without being removed even in environments such as external moisture and precipitation, and can more effectively prevent insect access.

Hereinafter, the present invention will be described in more detail with reference to Preparation Examples and Experimental Examples.

<Production Example>

An insect repellent composition was prepared with the composition shown in Table 1 below.

ingredient Preparation Example 1 (wt%) Preparation Example 2 (wt%) Preparation Example 3 (wt%) linalul 6.0 6.0 6.0 limonene 6.0 6.0 6.0 anethol 1.5 1.5 1.5 cinnamaldehyde 1.5 1.5 1.5 glycerin 2.0 2.0 1.5 Noni Leaf Extract - 2.0 2.0 Cotton Seed Extract - 2.0 2.0 PEG-60 hydrocastor oil - - 1.5 PEG-40 hydrocastor oil - - 1.0 ethanol balance balance balance

<Experimental Example 1>

Three insect repellent screens each coated with the composition according to Preparation Examples 1 to 3 described above were prepared. The size of one insect repellent screen was 1.0m ² . And the insect repellent screen according to Preparation Examples 1 to 3 was used as three side walls, and the insect screen to which the insect repellent composition was not applied was used as one side wall to form a space of ^{approximately 1.0 m 3 size.} The upper surface was closed with a black plastic plate to form an enclosed space.

About 200 Aedes Aedes mosquitoes were put into the prepared experimental space. And for 10 hours, every hour, the number of mosquitoes attached to each insect screen was checked and averaged. Except for the moment of checking the number of mosquitoes, the darkroom atmosphere was maintained to minimize the influence of the lighting direction. And the results are shown in Table 2 below.

Preparation Example 1 Preparation 2 Preparation 3 control 33.2 27.1 28.9 82.7

Referring to Table 2, it can be seen that the insect repellent screen coated with the insect repellent composition according to the present invention has a significantly lower number of mosquitoes attached to the screen compared to the control that is not.

In addition, comparing Preparation Example 1 with Preparation Example 2 and Preparation Example 3, in the case of Preparation Examples 2 and 3 containing the noni leaf extract and the cotton leaf extract, a significantly smaller number of inorganics were attached compared to Preparation Example 1 it can be checked that In particular, during the 10 repeated experiments, Preparation Example 1 was attached to a larger number of mosquitoes than Preparation Examples 2 and 3 in all cases.

<Experimental Example 2>

The insect repellent screen coated with the insect repellent composition of Preparation Examples 1 to 3 was left outdoors for 15 days. Then, water was applied to the wire of the insect repellent screen, and it was left outdoors for 15 days again.

And the experiment was performed again in the same manner as in Experimental Example 1, and the results are shown in Table 3 below.

Preparation Example 1 Preparation 2 Preparation 3 control 45.3 36.5 30.6 65.0

Referring to Table 3, it can be seen that, as in Experimental Example 1, the insect repellent screen coated with the insect repellent composition according to the present invention has a significantly lower number of mosquitoes attached to it compared to the control that is not.

However, compared to the case of Experimental Example 1, in Preparation Examples 1 to 3, the number of attached mosquitoes increased. This is presumed to be caused by at least partially volatilization or removal of the insect repellent component in the process of leaving the insect repellent screen unattended in severe outdoor conditions.

In particular, in the case of Preparation Example 1 and Preparation Example 2, it was confirmed that the number of mosquitoes increased by 36% and 34%, respectively. However, in the case of Preparation Example 3, only about 5% level increased even after 30 days had elapsed, and it was confirmed that the durability was superior to that of Preparation Examples 1 and 2.

In the above, the embodiment of the present invention has been mainly described, but this is only an example and does not limit the present invention. It will be appreciated that various modifications and applications not exemplified above are possible.

Therefore, it should be understood that the scope of the present invention includes changes, equivalents or substitutes of the technical ideas exemplified above. For example, each component specifically shown in the embodiment of the present invention may be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (8)

Terpene alcohol, terpene, anethol, phenolic aldehyde, cotton seed extract, noni leaf extract 1.0 wt% to 3.0 wt%, PEG-60 hydrocastor oil 0.5 wt% to 3.0 wt%, and PEG-40 hydrocastor oil 0.5 wt% % to 3.0% by weight of the insect repellent composition. The method of claim 1,
The terpene alcohol is included in 2.0 wt% to 8.0 wt%, and the terpene is an insect repellent composition comprising 2.0 wt% to 8.0 wt%. The method of claim 1,
The anetol is included in an amount of 0.5 wt% to 2.0 wt%, and the phenolic aldehyde is included in an amount of 0.5 wt% to 2.0 wt%. The method of claim 1,
The cotton seed extract is an insect repellent composition comprising 1.0 wt% to 3.0 wt%. The method of claim 1,
Insect repellent composition further comprising a viscosity enhancer comprising glycerin, and carboxymethyl cellulose, stearate, gelatin or xanthan gum. The method of claim 1,
The insecticidal composition has a viscosity of 20,000cp to 35,000cp. insect screens including wires; and
An insect repellent screen comprising the insect repellent composition according to claim 1 coated on the wire of the insect screen. 8. The method of claim 7,
The wire is formed along the extending direction on the outer peripheral surface insect screen having a groove (groove) or protrusion (protrusion) configured to increase the surface area.

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