Insect Barrier Tape

Abstract

An insect barrier tape (1) is a double-sided tape having an adhesive surface (3a) and a bonding surface. The adhesive force of the adhesive surface as determined by the inclined-type ball tack test method (inclination angle: 30 degrees) specified in JIS Z 0237 is represented by a ball number of 7 or greater.

Description

[Technical field]

[0001] The present invention relates to an insect barrier tape that uses an adhesive surface to prevent the intrusion and spread of crawling pests such as bedbugs. [Background technology]

[0002] In recent years, damage caused by walking pests to humans and pets has become a problem. Examples of walking pests include bedbugs, ants, cockroaches, mites, centipedes, millipedes, etc., and some of these pests cause harm by biting or stinging the human body. In addition, there are walking pests that are unpleasant pests that cause discomfort to humans even though they have little direct effect on the human body, and various control methods and capture devices for these pests have been proposed.

[0003] For example, a pest repellent adhesive tape has been proposed in which an adhesive layer containing an insect repellent is attached to one side of a tape-shaped substrate that is permeable to the repellent. It is described that after the pest repellent adhesive tape is attached to the area where repellent is desired, the repellent migrates from the adhesive part to the surface through the tape-shaped substrate and is gradually released, thereby exerting a repellent effect (see, for example, Patent Document 1).

[0004] Also proposed is an insect repellent tape in which an adhesive is applied to one side of a tape made of a resin containing an insect repellent in the resin (see, for example, Patent Document 2).

[0005] Furthermore, a tape has been proposed in which an adhesive is applied to both ends of one side of a tape-like substrate containing an insect repellent, the adhesive at one end is attached to the area to be repelled, the central part without the adhesive is folded into an L shape to make it three-dimensional, and the adhesive at the other end is exposed to exert an insect repellent effect (see, for example, Patent Document 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 9-067210 [Patent Document 2] JP 2000-273002 A [Patent Document 3] JP 2018-000144 A Summary of the Invention [Problem to be solved by the invention]

[0007] Here, the tapes described in Patent Documents 1 and 2 above have an adhesive attached to one side of a tape substrate, and after attachment, the tape surface gradually releases a repellent, thereby suppressing the invasion of insects. However, because the surface of the tape substrate is smooth, it is not possible to physically prevent insects from climbing over it, and it is difficult to prevent the invasion and spread of walking pests only by the repellent effect of the repellent.

[0008] Furthermore, the tape described in Patent Document 3 above combines a repellent effect with a steric obstruction effect and an intrusion prevention effect on exposed adhesive surfaces. However, crawling pests can climb over slightly uneven surfaces as long as they have a foothold, and the adhesive on the adhesive surface is also used for adhesive surfaces for easy attachment, so there is a problem that the tape is insufficient in design to prevent the intrusion and spread of crawling pests.

[0009] Therefore, the present invention has been made in consideration of the above-mentioned problems, and has an object to provide an insect barrier tape that can prevent the intrusion and spread of crawling pests. [Means for solving the problem]

[0010] The present inventors have conducted extensive research to solve the above problems and have completed the present invention. That is, the present invention provides the following preferred embodiments.

[0011] [1] An insect barrier tape that is a double-sided tape having an adhesive side and an application side, and the adhesive strength of the adhesive side is a ball number of 7 or more when measured using the inclined ball tack test method (inclined angle 30 degrees) specified in JIS Z 0237.

[0012] [2] The insect barrier tape according to [1] above, further comprising an insect repellent.

[0013] [3] The insect barrier tape according to [2] above, wherein the insect repellent is at least one selected from the group consisting of icaridin, etofenprox, propoxur, orthodichlorobenzene, DEET, organophosphate insect repellents, pyrethroid insect repellents, octenal, hexenal, hexanone, lactic acid, dimethyl disulfide, and dimethyl trisulfide.

[0014] [4] The insect barrier tape according to [2] or [3], further comprising an adhesive layer having an adhesive surface, the adhesive layer containing an insect repellent.

[0015] [5] The insect barrier tape according to any one of [1] to [4] above, wherein the insect barrier tape has a width of 10 mm or more.

[0016] [6] The insect barrier tape according to any one of [1] to [5] above, wherein the width of the insect barrier tape is at least twice the average body length of the target insects.

[0017] [7] The insect barrier tape according to any one of [1] to [6] above, wherein the insects are bedbugs. Effect of the Invention

[0018] According to the present invention, it is possible to prevent crawling pests outside a specific area from walking into said area, and it is also possible to prevent crawling pests inside a specific area from spreading outside said area. [Brief description of the drawings]

[0019] [Figure 1] 1 is a cross-sectional view showing an insect barrier tape according to an embodiment of the present invention. [Diagram 2] 1 is a plan view showing an insect barrier tape according to an embodiment of the present invention. [Diagram 3]FIG. 13 is a diagram for explaining a method for evaluating an intrusion prevention rate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiment.

[0021] In the present invention, the term "walking pests" refers to pests that move by walking, such as pests that cause harm by biting or stinging the human body, or nuisance pests that have little direct effect on the human body but cause discomfort. Examples of walking pests include bedbugs (body length 2-8 mm), ants (body length 0.5-20 mm), cockroaches (body length 5-40 mm), mites (body length 0.2-0.5 mm), centipedes (body length 60-200 mm), and millipedes (body length 10-25 mm).

[0022] Fig. 1 is a cross-sectional view showing an insect barrier tape according to an embodiment of the present invention, and Fig. 2 is a plan view showing an insect barrier tape according to an embodiment of the present invention. The insect barrier tape 1 of this embodiment comprises a substrate 2, an adhesive layer 3 provided on the surface of the substrate 2, and an attachment layer 4 provided on the surface of the substrate 2 opposite to the adhesive layer 3, and is a double-sided tape having an adhesive surface and an attachment surface.

[0023] <Base material> The substrate 2 may be made of paper, nonwoven fabric, or a synthetic resin film or sheet made of polyolefin (such as polypropylene), polyester (such as polyethylene terephthalate), polystyrene, polycarbonate, or the like.

[0024] The base material 2 may be transparent or opaque, and may be colored so that the attachment location can be clearly identified. The thickness of the base material 2 is not particularly limited, but is preferably, for example, 10 to 100 μm.

[0025] <Adhesive layer> The adhesive layer 3 is intended to prevent the intrusion and spread of crawling pests by means of the adhesive surface 3a. The adhesive layer 3 can be formed of an adhesive such as an acrylic, rubber, hot melt, SIS block, or silicone adhesive. These adhesives may be used alone or in combination of two or more kinds.

[0026] The thickness of the adhesive layer 3 is not particularly limited, but is preferably, for example, 50 to 120 μm.

[0027] In the insect barrier tape 1 of this embodiment, the adhesive strength of the adhesive surface 3a of the adhesive layer 3 must be equal to or greater than a ball number of 7 as measured by the inclined ball tack test method (incline angle 30 degrees) specified in JIS Z 0237. This is because, with a ball number of less than 7, walking pests have difficulty getting their feet caught, the repelling effect of the adhesive becomes insufficient, and they are even able to move on the adhesive surface. That is, walking pests instinctively tend to dislike highly adhesive surfaces, and are particularly prone to avoid adhesive surfaces with a ball number of 7 or more. Therefore, in order to effectively prevent the intrusion and spread of walking pests, the insect barrier tape 1 of this embodiment must have an adhesive strength of a ball number of 7 or more.

[0028] From the viewpoint of reliably preventing the intrusion and spread of crawling pests, it is preferable that the ball number is 12 or more. In addition, in the case of the inclined ball tack of JIS Z 0237-2009, a tack with a diameter of 1 inch is designated as the ball number 32, but the ball number corresponding to a tack with a diameter of 1 inch or more is also included in the present invention.

[0029] In order to adjust the adhesive strength of the adhesive surface 3a, the adhesive forming the adhesive layer 3 may contain a plasticizer or a crosslinking agent.

[0030] Of the above-mentioned walking pests, bedbugs in particular have become a problem in recent years in hotels, inns, and public facilities, but guests staying at hotels and inns where there is a concern that bedbugs may be present can use the insect barrier tape 1 of this embodiment to prevent being bitten by nocturnal bedbugs while sleeping.

[0031] More specifically, the insect barrier tape 1 of this embodiment can be placed around the foot of the bed when sleeping, and when sleeping on the floor, it can be placed so as to surround the periphery of the futon.

[0032] On the other hand, from the perspective of hotel or inn managers, when bedbugs are brought in by a guest, they must first take measures to prevent the bedbugs from escaping the room. Even in this case, by installing the insect barrier tape 1 of this embodiment around the door that serves as the entrance and exit to the room, it is possible to prevent the bedbugs from escaping the room and spreading outside.

[0033] <Insect repellent> Furthermore, an adhesive layer 3 containing an insect repellent may be used. By using such an insect repellent, in addition to the repellency due to the adhesion described above, the repellency due to the insect repellent can be imparted, so that the effect of preventing the intrusion and spread of walking pests can be improved.

[0034] The insect repellent is not particularly limited as long as it has the effect of repelling walking pests in general, and for example, organophosphorus insect repellents such as fenitrothion, pyrethroid insect repellents such as permethrin, propoxur, orthodichlorobenzene, DEET, icaridin, and etofenprox can be used, and these insect repellents can be blended in advance with the adhesive forming the adhesive layer 3. Furthermore, when a certain amount or more of a drug having an effect as an attractant is used, a repellent effect may be expressed conversely, and by utilizing this characteristic, for example, octenal, hexenal, hexanone, lactic acid, dimethyl disulfide, and dimethyl trisulfide, which are known as attractants for bedbugs, can be used as insect repellents by blending a certain amount or more.

[0035] These insect repellents may be used alone or in combination of two or more kinds. Also, these insect repellents may be blended with the base material 2 described above.

[0036] The content of the insect repellent is not particularly limited, but the amount can be determined taking into consideration the adhesive properties when blended into the adhesive layer 3. Typically, depending on the effect of the insect repellent, 0.1 to 15 wt % can be blended into the adhesive layer 3, and preferably 1 to 10 wt %.

[0037] In particular, the use of a transpiration type insect repellent such as icaridin can prevent insects from approaching the area near the insect barrier tape 1. Even in the case of an insect repellent with low transpiration such as etofenprox, it is possible to prevent insects from entering a certain area because it can exert a repellent effect upon contact. Furthermore, when a chemical that acts as an attractant is used as an insect repellent, it is safer for living things and the environment than general insect repellents, and is therefore preferable in terms of safety when considering the possibility of people or pets coming into contact with the insect barrier tape of this embodiment.

[0038] <Adhesive layer> 1, the insect barrier tape 1 of this embodiment has an attachment layer 4 for attachment to a surface on the surface of the substrate 2 opposite the adhesive layer 3. Therefore, for example, when the insect barrier tape 1 is placed vertically and attached to a wall, the insect barrier tape 1 can be easily attached to the surface of the wall via the attachment surface 4a.

[0039] The attachment layer 4 can be formed from an adhesive such as an acrylic, rubber, hot melt, SIS block, silicone, etc. These adhesives may be used alone or in combination of two or more.

[0040] In addition, from a practical standpoint, it is preferable to use an adhesive that has relatively good releasability so that the adhesive does not stick to the target object when peeled off after attachment to the target object. The adhesive forming the attachment layer 4 may also contain the above-mentioned insect repellent.

[0041] The thickness of the attachment layer 4 is not particularly limited, but is preferably, for example, 30 to 80 μm.

[0042] <Width of insect barrier tape> The width W of the insect barrier tape 1 of this embodiment shown in Fig. 2 is preferably in the range of 10 to 500 mm. If the width W is less than the above lower limit, relatively large walking pests may climb over the insect barrier tape 1. If the width W is greater than the above upper limit, practical attachment and removal may be complicated, and the exposed adhesive surface 3a may be accidentally touched. From the viewpoints of improving the intrusion prevention effect and spread prevention effect of walking pests, practical handling of attachment and removal, and repelling insects such as bedbugs with a body length of 2 to 8 mm, the width W of the insect barrier tape 1 is more preferably 30 to 50 mm.

[0043] Furthermore, the width W of the insect barrier tape 1 of this embodiment is preferably at least twice the average body length of the walking pests that are the target of the repelling effect. If the width W is less than the above lower limit, there is a possibility that a walking pest that has inadvertently stuck to the adhesive surface will climb over another walking pest and cross the insect barrier tape. From the viewpoint of improving the effect of preventing the intrusion and spread of walking pests and of practical handling in attachment and removal, the width W of the insect barrier tape 1 is more preferably 5 to 20 times the average body length of the walking pests that are the target of the repelling effect.

[0044] <Insect Barrier Tape Manufacturing Method> Next, an example of a method for producing the insect barrier tape of this embodiment will be described.

[0045] First, a substrate 2 such as a polyester film is prepared, and then, for example, a double-sided adhesive sheet made of an adhesive that constitutes the adhesive layer 3 is attached to one side of the substrate 2, and at the same time, a double-sided adhesive sheet made of an adhesive that constitutes the attachment layer 4 is attached to the surface of the substrate 2 opposite the adhesive layer 3, thereby producing the insect barrier tape 1.

[0046] Alternatively, the insect barrier tape 1 may be manufactured by applying the adhesive that constitutes the adhesive layer 3 to one side of the substrate 2, and applying the adhesive that constitutes the attachment layer 4 to the surface of the substrate 2 opposite the adhesive layer 3. EXAMPLES

[0047] The present invention will be described below based on examples. Note that the present invention is not limited to these examples, and these examples can be modified or changed based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[0048] Example 1 (Preparation of insect barrier tape) A double-sided adhesive sheet (manufactured by Technoflow One Co., Ltd., product name "TC5510", thickness 60 μm) made of an acrylic adhesive was attached to one side of a transparent polyester film (manufactured by Toray Industries, Inc., product name "Lumirror T60", thickness 75 μm) to serve as an adhesive layer, and a double-sided adhesive sheet (manufactured by Teraoka Seisakusho, product name "Removable Double-Sided Tape", 30 mm × 20 m, product number: 7220 30) to serve as an attachment layer was attached to the surface opposite the adhesive layer of the transparent film, and the sheet was cut to a width of 30 mm to prepare an insect barrier tape.

[0049] (Ball tack test) The adhesive strength of the adhesive surface of the adhesive layer was evaluated by a ball tack test in accordance with JIS Z 0237. More specifically, the prepared insect barrier tape was attached and fixed to an inclined table with an inclination angle of 30 degrees in an environment of 26°C temperature and 65% relative humidity, with the adhesive layer facing upward. Next, a stainless steel ball was rolled on the adhesive surface according to the method described in JIS Z 0237. Among the balls that stopped on the adhesive surface, the number value of the ball with the largest diameter was taken as the ball number. The results are shown in Table 1.

[0050] (Intrusion prevention rate evaluation) First, as shown in FIG. 3, a filter paper 11 was laid on the floor surface of a rectangular plastic container 10 with a volume of 5200 mL, and an adhesive layer of the insect barrier tape 1 was attached to the floor surface and the side wall surface so as to partition the left and right sides near the center, and the insect barrier tape 1 was placed in a state in which the adhesive surface 3a was exposed. Next, 10 bedbugs B with an average body length of 4.5 mm were placed in one space of the plastic container 10 partitioned by the insect barrier tape 1, and a shaved mouse housed in a small cage 12 was placed in the other space. Then, under conditions of room temperature of 22 to 28°C and relative humidity of 20 to 52%, the room was repeatedly turned on for 12 hours and turned off for 12 hours, and the number of bedbugs that had sucked blood was confirmed after 48 hours had passed. The intrusion prevention rate was calculated using the following formula (1). The above process was performed three times, and the average intrusion prevention rate for the three times is shown in Table 1.

[0051] [Number 1] Invasion prevention rate (%) = {(total number of bedbugs introduced - number of bedbugs that have sucked blood) / total number of bedbugs introduced} x 100 (1)

[0052] Example 2 An insect barrier tape was produced in the same manner as in Example 1, except that instead of attaching a double-sided adhesive sheet to serve as the adhesive layer of Example 1 to one side of a transparent polyester film, an acrylic adhesive containing 5% by weight of icaridin was applied to form an adhesive layer with a thickness of 60 μm. Thereafter, a ball tack test was carried out in the same manner as in Example 1, and the intrusion prevention rate was evaluated. The results are shown in Table 1.

[0053] Example 3 Except for cutting the insect barrier tape to a width of 10 mm, an insect barrier tape was produced in the same manner as in Example 2. Thereafter, a ball tack test was carried out in the same manner as in Example 1, and the intrusion prevention rate was evaluated. The results are shown in Table 1.

[0054] Example 4 An insect barrier tape was produced in the same manner as in Example 1, except that instead of attaching a double-sided adhesive sheet to serve as the adhesive layer of Example 1 to one side of a transparent polyester film, an acrylic adhesive containing 5% by weight of etofenprox was applied to form an adhesive layer with a thickness of 60 μm. Thereafter, a ball tack test was carried out in the same manner as in Example 1, and the intrusion prevention rate was evaluated. The results are shown in Table 1.

[0055] Example 5 Except for cutting the insect barrier tape to a width of 5 mm, an insect barrier tape was produced in the same manner as in Example 1. Thereafter, a ball tack test was carried out in the same manner as in Example 1 to evaluate the intrusion prevention rate. The results are shown in Table 1.

[0056] Example 6 Except for cutting the insect barrier tape to a width of 5 mm, an insect barrier tape was produced in the same manner as in Example 2. Thereafter, a ball tack test was carried out in the same manner as in Example 1, and the intrusion prevention rate was evaluated. The results are shown in Table 1.

[0057] Example 7 Except for using 10% by weight of lactic acid instead of icaridin, an insect barrier tape was produced in the same manner as in Example 2. Thereafter, a ball tack test was conducted in the same manner as in Example 1 to evaluate the intrusion prevention rate. The results are shown in Table 1.

[0058] Example 8 An insect barrier tape was produced in the same manner as in Example 2, except that 1% by weight of octenal was used instead of icaridin. Then, a ball tack test was carried out in the same manner as in Example 1, and the intrusion prevention rate was evaluated. The results are shown in Table 1.

[0059] Comparative Example 1 An insect barrier tape was produced in the same manner as in Example 5, except that an adhesive layer was formed by applying an acrylic adhesive to one side of the transparent polyester film instead of attaching a double-sided adhesive sheet to serve as the adhesive layer in Example 1. Thereafter, a ball tack test was conducted in the same manner as in Example 1 to evaluate the intrusion prevention rate. The results are shown in Table 1.

[0060] Comparative Example 2 Except for using an acrylic adhesive with adjusted adhesive strength, an insect barrier tape was produced in the same manner as in Example 6. Then, a ball tack test was conducted in the same manner as in Example 1 to evaluate the intrusion prevention rate. The results are shown in Table 1.

[0061] [Table 1]

[0062] As shown in Table 1, in Example 1, since the ball number is 8, it is possible to prevent the intrusion of a large number of bedbugs.

[0063] Moreover, in Examples 2 to 4, the ball number values ​​are higher than in Example 1, and since an insect repellent is blended, it is clear that the bedbug intrusion prevention rate is dramatically improved compared to Example 1. In Example 3, the width of the insect barrier tape is smaller than in Example 2, but since it is 10 mm or more, it is clear that the bedbug intrusion prevention rate is very high, similar to Example 2.

[0064] Furthermore, in Example 5, the width of the insect barrier tape was smaller than in Example 1, and the bedbug intrusion prevention rate was lower than in Example 1, in which the width of the insect barrier tape was larger, but it was still possible to prevent bedbug intrusion.

[0065] In addition, in Example 6, the width of the insect barrier tape is smaller than that of Example 1, but since an insect repellent is included, it is clear that although the bedbug intrusion prevention rate is lower than that of Example 1, it is still able to effectively prevent bedbugs from invading.

[0066] Furthermore, in Examples 7 to 8, lactic acid and octenal are known to be bedbug attractants, but the amounts used in these examples exceed the amounts at which they exert an attractive effect, and instead exhibit repellent properties, thereby effectively preventing the intrusion of bedbugs.

[0067] On the other hand, in Comparative Examples 1 and 2, the ball number is 5, so it is clear that the intrusion of bedbugs cannot be prevented. [Industrial Applicability]

[0068] As described above, the present invention is particularly useful as an insect barrier tape that prevents the intrusion and spread of crawling pests by using its adhesive surface. [Explanation of symbols]

[0069] 1. Insect Barrier Tape 2 Base material 3 Adhesive layer 3a Adhesive side 4. Adhesive layer 4a Attachment surface W Width of insect barrier tape 10 Plastic containers 11 Filter paper 12 Small Cage B. Bedbugs

Claims

1. A double-sided tape having an adhesive surface and an attachment surface, the adhesive strength of the adhesive surface being a ball number of 7 or more as measured by the inclined ball tack test method (incline angle 30 degrees) specified in JIS Z 0237, Further containing an insect repellent, the insect repellent is icaridin, This insect barrier tape is intended to repel bedbugs.

2. The insect barrier tape of claim 1 , further comprising an adhesive layer having said adhesive surface, said insect repellent being contained in said adhesive layer.

3. 3. The insect barrier tape according to claim 1, wherein the width of the insect barrier tape is 10 mm or more.

4. 4. The insect barrier tape according to claim 1, wherein the width of the insect barrier tape is at least twice the average body length of the target insects.

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