JP2008100932A - Insect-repelling sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insect-repelling sheet of a pasting type, which enables the replacement time to be recognized surely. <P>SOLUTION: The insect-repelling sheet 1 has a sheet-shaped base material 10 impregnated with a volatile pest insect-repelling agent, and an adhering part 12 enabling the sheet-shaped base material 10 to be attached to and detached from an object to be stuck. The insect-repelling sheet 1 further has a displaying part 11 exhibiting the remaining state of the pest insect-repelling agent. The insect-repelling sheet 1 allows the replacement time to be precisely recognized by an user by visually confirming the display on the displaying part 11. As a result, the required exchange is carried out when the insect-controlling effects are exhausted to enable avoidance from the unpleasant pest insect always. Further, the uneconomical state of exchanging the usable insect-repelling sheet is prevented thereby. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an insect repellent sheet for attaching to human skin such as mosquitoes, bees, moths, moths, moths, ticks and the like to avoid itchiness and pain (hereinafter referred to as unpleasant pests). More specifically, the present invention relates to an insect repellent sheet for repelling insects (averting insects) using a drug (hereinafter simply referred to as a repellent) prepared to smell or taste that repels disgusting insects (dislikes and escapes).

  Conventionally, various measures have been taken to eliminate (avoid) unpleasant pests. For example, for mosquitoes, mosquito coils and electronic scented mats are well known. However, since these require a heat source based on fire or electricity, they have a major drawback of being inferior in portability.

  In order to eliminate the above-mentioned drawbacks, insect repellent creams and sprays which are provided with a repellent of unpleasant pests directly on the skin have been proposed. However, in the case of this type of insect repellent, a pest repellent is sprayed or rubbed directly onto the skin. Therefore, there are limits to the drugs that can be employed, their concentrations, and the time that they can be used continuously. In addition, sufficient consideration is required for allergic reactions of the user. Therefore, although this direct attachment type insect repellent satisfies the requirements for portability, the effect of the repellent that can be expected is relatively low, and there is a restriction that it cannot be used for people with weak skin or infants.

  Therefore, Patent Literature 1 and Patent Literature 2 propose an insect repellent seal (insect repellent patch) formed so that it can be attached to clothing or personal items (objects to be adhered). Since these insect repellent sheets are provided with an adhesive layer on a base material impregnated with a repellent, they can be attached to any object to be bonded. This affixing type insect repellent sheet is portable, and a repellent to be employed can be adopted that is relatively stronger than the spray type. Therefore, for example, if an insect repellent sheet is attached to an infant's clothes or a baby carriage, an unpleasant insect can be more effectively avoided.

Japanese Patent Laid-Open No. 9-40508 JP 2000-128720 A

  In the sticking type insect repellent sheet described above, the repellent impregnated in the base material has volatility, and the insect repellent effect described above is exhibited by gradually releasing the repellent. Therefore, since the remaining repellent decreases with time, it is necessary to promptly replace it with a new one when the repellent effect cannot be obtained. For that reason, in the past, an effective time has been clearly indicated for the patch-type insect repellent sheet. However, the repellent remaining on the substrate varies depending on the environment (external temperature, humidity, sunlight, etc.) in which the insect repellent sheet is used. Even if the insect repellent sheet in which the repellent is completely volatilized is stuck as it is, it is not possible to avoid unpleasant pests.

  However, the conventional patch-type insect repellent sheet has no means by which the user can check the residual state of the repellent. Therefore, in order to surely avoid damage from unpleasant insects, it was necessary to take measures such as replacing them early and confirming the presence of repellent by smelling the sheet. However, it is uneconomical to replace what can still be used as soon as possible, and it is troublesome for the user to check the state of the repellent by smelling the smell, and the judgment itself is ambiguous, so unpleasant pests are sure. Difficult to avoid.

  Accordingly, an object of the present invention is to provide an affixing type insect repellent sheet that can reliably recognize the replacement time.

  The above object is an insect repellent sheet having a sheet-like base material impregnated with a volatile pest repellent, and an adhesive portion that allows the sheet-like base material to be attached to and detached from an adherend. This can be achieved by an insect repellent sheet characterized by further comprising a display portion indicating the residual state of the repellent.

  Since the insect repellent sheet according to the present invention is provided with a display unit that indicates the residual state of the pest repellent, the user can confirm the display time on the display unit with the naked eye and reliably recognize the replacement time. Therefore, it is possible to always avoid an unpleasant pest by performing necessary replacement when the insect repellent effect is lost. It is also possible to prevent the inconvenience of replacing the insect repellent sheet that can be used.

  The display unit can be formed of a material that changes a refractive index with respect to light according to the amount of the insect repellent remaining in the sheet-like substrate.

  And the raw material which changes the refractive index with respect to the said light can be made into a nonwoven fabric and / or fine particle powder.

  In addition, the pest repellent is selected from clove oil, citronella oil, coustogaya, garlic oil, citronellal, camphor, camphor oil, and other volatile oils having an insect repellent effect, or a mixture of two or more thereof It can be any selected from the group consisting of:

  The insect repellent sheet described above may be cut to a size that can be attached to clothing or personal items to form a patch of a predetermined size, and the patch may be a portable insect repellent sheet in which a plurality of patches are arranged on release paper. it can. If it does in this way, it will become a portable insect repellent sheet convenient for carrying around.

  ADVANTAGE OF THE INVENTION According to this invention, the sticking type insect repellent sheet | seat which can recognize a replacement time reliably can be provided.

  Hereinafter, an insect repellent sheet according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an enlarged view showing a configuration of an insect repellent sheet 1 according to the embodiment. This insect repellent sheet 1 is provided with a display portion 11 on one side (upper surface in FIG. 1) side of a sheet-like base material 10 serving as a base, and an adhesive portion 12 on the opposite surface (lower surface in FIG. 1) side. It is configured.

  The sheet-like base material 10 is formed using a material that can be impregnated with a repellent of unpleasant pests. The sheet-like substrate 10 is not particularly limited as long as it is a sheet-like material that is chemically inert to the repellent and can be impregnated therewith. The sheet-like substrate 10 is generally referred to as a porous structural material such as a paper material such as paperboard, filter paper, synthetic fiber mixed paper, non-woven fabric, felt-like woven fabric, inorganic fiber sheet, ceramic-based or plastic-based porous material, and the like. Those having liquid (repellent) retention ability are preferred. The sheet-like base material 10 may be appropriately colored as necessary from the relationship with the display unit 11 described later.

  The sheet-like base material 10 is impregnated with a volatile liquid agent having a odor and taste that is repelled by an unpleasant pest as a repellent. As such a repellent, it is desirable to employ volatile oils derived from natural plants having an insect repellent effect, such as clove oil, citronella oil, koi sugaya, garlic oil, citronellal, camphor, camphor oil. Moreover, you may comprise the repellent which should impregnate the sheet-like base material 10 with the mixture which mixed two or more of these.

  This insect repellent sheet 1 is provided with an adhesive portion 12 on one side of the sheet-like base material 10 so that the user can affix it to an arbitrary location (object to be bonded) in a scene where he / she wants to avoid unpleasant pests. The objects to be bonded are generally personal items such as clothes, hats and bags worn by the user. In addition, when the user is an infant, the adherend is a baby clothes, a baby carriage, or the like. However, the insect repellent sheet 1 is not intended to be used only outdoors, and may be used indoors by being attached to furniture such as a bed or a window. As described above, the adherend target object to which the insect repellent sheet 1 of the present embodiment is attached includes all the places that can be attached when the user wants to avoid the harmful insects. In the structural example shown in FIG. 1, the adhesive portion 12 is formed by applying an adhesive to the lower surface of the sheet-like substrate 10. It is a more preferable form that the release paper 14 is affixed to the surface of the adhesive portion 12 and the release paper 14 is peeled off during use.

  And it is preferable to make it the structure where the repellent impregnated to the sheet-like base material 10 does not contact the adhesive agent of the adhesion part 12. FIG. Therefore, it is preferable to provide a barrier layer 13 for blocking the repellent between the sheet-like substrate 10 and the adhesive portion 12. As the barrier layer 13, a resin film such as a film of polyester, polypropylene, polyethylene, or polyvinyl can be employed. Since such a film does not allow the repellent to pass therethrough, it is possible to form a state in which the repellent impregnated in the sheet-like substrate 10 is volatilized from the surface side. In addition, the barrier layer 13 may select the colored film as needed from the relationship with the display part 11 mentioned later.

  The configuration described above is the same as that of a conventional pasting type insect repellent sheet. As described above, in the case of the conventional insect repellent sheet, there is a problem that the repellent residual state cannot be confirmed. The insect repellent sheet 1 of the present embodiment is newly provided with a display unit 11 indicating the remaining state of the repellent, so that the conventional inconvenience is solved. Hereinafter, the display unit 11 will be further described.

  The display unit 11 is permeable to the repellent impregnated in the sheet-like base material 10 and changes the refractive index with respect to light according to the amount of the repellent remaining in the sheet-like base material 10. . More specifically, the repellent impregnated in the sheet-like base material 10 of the insect repellent sheet 1 is a volatile liquid and volatilizes with time, so that the existing repellent (residual amount) gradually decreases. . And the display part 11 changes the refractive index with respect to light according to the state (residual amount) in which a volatile liquid exists. That is, the display unit 11 exhibits an indicator function. Such a display part 11 may be formed by the nonwoven fabric and fine particle powder which are arrange | positioned in contact with the sheet-like base material 10, or may be formed by these nonwoven fabric and fine particle powder.

  When the display unit 11 is formed of fine powder, for example, it can be formed as follows. When a repellent (liquid) is present, a forming material is formed by mixing fine particles of amorphous silica, kaolin, calcium carbonate and other white inorganic pigments that exhibit a low refractive index with light, and organic pigments such as plastic pigments. The display part 11 can be formed using it. As the binder, vinyl acetate, EVA, NBR, SBR, acrylic or other latex can be used. You may add a coloring agent suitably. However, since the color of the surface of the sheet-like substrate 10 can be confirmed when the repellent is present and transparent, it is desirable that the color be similar to this color or a color that cannot be visually recognized. When the repellent is volatilized and the display unit 11 becomes opaque, it is desirable that the contrast with the sheet-like substrate 10 is large. When the sheet-like substrate 10 is colored to be red or blue, the display unit 11 is preferably white or light.

  In addition, the said display part 11 can be formed so that a character, a number, a symbol, a figure, or these combinations may be displayed. When the display unit 11 is opaque by drawing characters, figures, etc. with a substantially colorless and transparent material that is impermeable to the repellent on the display unit 11 and has no liquid around it. The character, figure, etc. can appear. The letters and figures are drawn with an oil repellent such as a fluororesin, a silicone resin, an acrylic resin, etc., so that the letters can be raised when the repellent is volatilized. That is, the portion where characters, figures, and the like are drawn becomes a display that can be recognized when the repellent is volatilized and the display unit 11 becomes opaque.

  The display unit 11 can be formed by appropriately selecting a conventionally known coating technique. For example, a printing method such as silk screen printing, offset printing, gravure printing, etc. is used, and a fine powder coating is formed on the sheet-like substrate 10, and when drawing letters or figures, a fluororesin is applied to the corresponding part. do it. The insect repellent sheet 1 illustrated in FIG. 1 shows an example of a basic type structure in which the display unit 11 is formed on the sheet-like base material 10. FIG. 2 shows an insect repellent sheet 2 having a modified basic structure. This insect repellent sheet 2 has a structure in which a display unit 11 is provided adjacent to a sheet-like substrate 10. As shown in FIG. 2, a plurality of display units 11 may be provided individually. And you may make it change the display part displayed by the residual state of a repellent. For example, a first display unit that displays when the repellent is exhausted in a short time, a second display unit that displays when the repellent is completely exhausted, and the like are configured. If it does in this way, it can be set as the more preferable insect repellent sheet | seat which can recognize a replacement time more reliably.

  As can be understood from the above description, the display unit 11 can be designed in various forms. For example, the sheet-like base material 10 is formed in color. The display unit 11 is transparent when it is in contact with the liquid (when the repellent is present), and is formed to be opaque and white when the repellent is volatilized. In this case, the insect repellent sheet 1 is whitened as the repellent is gradually reduced, so that the user can replace it.

  Further, as shown in FIG. 3, characters such as “It is time to replace!” Are written on the display unit 11 with fluororesin or the like. When sufficient repellent is present on the sheet-like substrate 10, the display unit 11 is transparent, and as shown in the upper part of FIG. However, when the repellent is volatilized and the display unit 11 becomes opaque, the color changes relatively as shown in the lower part of FIG. Therefore, this allows the user to surely know that the insect repellent sheet is in the replacement period.

  As is clear from the above description, the insect repellent sheet 1 of the present embodiment is provided with an adhesive portion, so that it can be easily attached to an adherend, and is provided with a display portion that indicates a residual state of the pest repellent. So you can know the replacement time. Therefore, a user who uses this insect repellent sheet 1 can efficiently avoid an unpleasant pest by performing an efficient and economical exchange.

  FIG. 4 is a view showing a more preferable embodiment of the insect repellent sheet 1. This insect repellent sheet 1 is cut to a size that can be easily applied to personal items such as clothes and bags, and is formed into a patch (small piece). Such a patch has, for example, a circular shape with a diameter of about 4 to 5 cm and a rectangular shape with a side of about 4 to 5 cm. A plurality of patches are arranged on the release paper 14. If the patch repellent sheets thus arranged are arranged on a mount (release paper), they can be carried and quickly attached. Therefore, it can provide as an insect repellent sheet full of convenience.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

It is the figure which expanded and showed the composition of the insect repellent sheet concerning an embodiment. It is the figure which expanded and showed the structure of the deformed insect repellent sheet | seat. It is the figure shown about the example of a display of a display part. It is the figure shown about the example of the form of the preferable insect repellent sheet | seat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Insect repellent sheet 10 Sheet-like base material 11 Display part 12 Adhesion part 13 Barrier layer 14 Release paper

Claims (5)

An insect repellent sheet having a sheet-like base material impregnated with a volatile pest repellent, and an adhesive portion that allows the sheet-like base material to be attached to and detached from an adherend,
An insect repellent sheet characterized by further comprising a display unit indicating a residual state of the insect repellent. The insect repellent sheet according to claim 1, wherein the display unit is formed of a material that changes a refractive index with respect to light in accordance with an amount of the insect repellent remaining in the sheet-like base material. . The insect repellent sheet according to claim 2, wherein the material that changes the refractive index with respect to light includes a nonwoven fabric and / or fine powder. The pest repellent is selected from clove oil, citronella oil, scallop oil, garlic oil, citronellal, camphor, camphor oil, and other volatile oils having an insect repellent effect, or a mixture of two or more thereof. The insect repellent sheet according to claim 1, wherein the insect repellent sheet is any one selected from a group. The insect repellent sheet according to any one of claims 1 to 4 is cut to a size that can be attached to clothing or personal items to form a patch of a predetermined size, and a plurality of the patches are arranged on release paper. Portable insect repellent sheet characterized by.

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