TWI852813B - Acarine trapping product and acarine trapping method - Google Patents

Abstract

The present invention provides a mite-capturing product that has an excellent mite-attracting effect, can reliably and safely capture the attracted mite, and can expel the mite. It comprises: a fiber structure (10) with raised hair, and an adhesive (20) for fixing the mite. The elongation of the fiber constituting the fiber structure (10) is less than 10%. The fiber structure (10) is a woven or knitted fabric with a yarn density of 10 to 100 strands/10 cm, and at least contains tough fiber and/or seed hair fiber. An attractant (30) is provided between the fiber structure (10) and the adhesive (20), and at least a portion of the fiber structure (10) is covered with a non-fluffing breathable sheet (40).

Description

Mite trapping products and mite trapping methods

The present invention relates to a mite trapping product for trapping mite hiding in a house, and a mite trapping method.

In recent years, the airtightness of residential environments has increased, making it easier for mites to breed. Mites are the main cause of atopic dermatitis, asthma, allergic diseases, etc., so ordinary residents are looking forward to a reliable and safe means and method to eliminate mites.

There are methods of using pesticides or repellents to eliminate mites. However, this method does not actively reduce the number of mites, so there is a problem of leaving dead mites. In addition, people who are sensitive to chemicals are worried about the effects of chemicals, so they are looking for means and methods to easily eliminate mites without using chemicals as much as possible.

Therefore, in order to expel mites, products (mite sheets) are being developed that do not kill or repel mites, but attract mites for capture (for example, see Patent Document 1). The mite sheet of Patent Document 1 is a sheet in which an attractant is arranged on an adhesive, and these are held from top to bottom by air-permeable layers. According to Patent Document 1, mites are attracted to the attractant on the inner side of the two air-permeable layers, and then fixed to the adhesive, becoming captured in the mite sheet. [Prior Art Document] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2009-89610

[Problems to be solved by the invention]

For products that attract the above-mentioned mites for capture, it is extremely important that the mites have an excellent attracting effect. If the attracting effect is not sufficient, even if the capture product is close to the mites and the mites are surely attracted to the adhesive, they cannot be captured. On the other hand, if the attracting effect for mites depends solely on the attractant, the effect of the attractant will be greatly reduced when the efficiency of the attractant is weakened due to long-term use.

In this regard, in the mite sheet of Patent Document 1, in order to capture mites with the adhesive, the mites need to pass through the air-permeable layer. As a result, there is a possibility that the attracting effect of the mites by the attractant is weakened due to the material or characteristics of the air-permeable layer. In addition, since the mite sheet of Patent Document 1 requires the attractant, when the effect of the attractant disappears, there is a possibility that the mites cannot be attracted to the vicinity of the mite sheet.

Thus, the mite sheet including the one disclosed in Patent Document 1 is a product of the type that attracts conventional mites for capture, but it cannot be said that the mite attracting effect is necessarily sufficient, and there is still room for improvement.

The present invention is completed in view of the above-mentioned problems, and aims to provide a mite-catching product and mite-catching method that has excellent mite-attracting effect, can reliably and safely capture the induced mite, and can expel the mite. [Means for solving the problem]

The characteristic structure of the mite-catching product of the present invention for solving the above-mentioned problems comprises: a fiber structure with raised hairs, and an adhesive body for fixing mites.

Although most mites lurk in fiber products such as clothing, tatami, and carpets, the inventors of the present invention have discovered that mites are specifically attracted to a fiber structure with hair, and have successfully developed a novel mite-trapping product that utilizes this specific phenomenon. That is, the mite-trapping product of the present invention first attracts mites to a fiber structure with hair, and then allows the attracted mites to stay in the fiber structure or wander in the fiber structure, and then the mites are fixed to the adhesive body, thereby providing a mite-trapping product with excellent trapping performance. Moreover, the mites captured by the mites capturing product can be driven away by simply discarding the mites capturing product. In addition, since the mites capturing product of this composition does not use pesticides or repellents, it can be used safely even by people who are allergic to chemicals.

In the mite capturing product of the present invention, it is preferred that the elongation of the fiber constituting the aforementioned fiber structure is less than 10%.

According to the mite capturing product of this structure, by setting the elongation of the fiber constituting the fiber structure to be less than 10%, more mites can be attracted to the fiber structure, and the mite capturing product with better capturing performance can be provided.

In the mite-catching product of the present invention, the aforementioned fiber structure is preferably a woven or knitted fabric with a yarn density of 10 to 100 strands/10 cm.

According to the mite capturing product of this configuration, by using a woven or knitted fabric with a yarn density of 10 to 100 yarns/10 cm as the fiber structure, more mites can be attracted to the fiber structure, and the mite capturing product with better capturing performance can be provided.

In the mite capturing product of the present invention, the aforementioned fiber structure preferably comprises at least tough fiber and/or seed hair fiber.

According to the mite capturing product of the present invention, since the fiber structure at least includes the tough fiber and/or the seed hair fiber, more mites can be attracted to the fiber structure, and the mite capturing product with better capturing performance can be provided.

In the mite capturing product of the present invention, it is preferred to place an attractant between the aforementioned fiber structure and the aforementioned adhesive.

According to the mite capturing product of this structure, by arranging the attractant between the fiber structure and the adhesive body, a mite capturing product with better capturing performance can be provided by the synergistic effect of the fiber structure having an attracting effect on mites and the attractant.

In the mite-catching product of the present invention, it is preferred that at least a portion of the aforementioned fiber structure is covered with a non-hairy breathable sheet.

According to the mite-trapping product of this configuration, since at least a portion of the fiber structure is covered with a non-haired air-permeable sheet, mites can easily penetrate into the interior of the product. Furthermore, since the hair of the fiber structure is not exposed on the outer surface of the product, it is easy to insert even a tiny gap, and it is easy to dispose of after use, making it a mite-trapping product with excellent usability.

In the mite capturing product of the present invention, preferably, when the thickness of the fiber structure is set to a (mm) and the unit area weight of the fiber structure is set to b (g/m ² ), the following formula (1) is satisfied: 0.1≦(a ² /b)×100≦1.0 •••(1).

According to the mite capturing product of this structure, by satisfying the above formula (1), a mite capturing product can be provided in which more mites are attracted to the fiber structure and the capturing performance is even better.

In the case of the mite capturing product of the present invention, it is preferred that the product does not contain insecticides and/or repellents.

Since the mite trapping product of this composition does not contain insecticides and/or repellents, it basically does not significantly weaken the mite attracting effect, and can be used safely even by people who are sensitive to chemicals.

The characteristic composition of the mite-capturing product of the present invention used to solve the above-mentioned problem is to attract and capture mite species that invade an area within a radius of 1m.

According to the mite capturing product of this composition, an excellent mite capturing product capable of surely capturing mite approaching the product can be provided.

In the mite capturing product of the present invention, it is preferred that the mite is captured within 24 hours.

According to the mite capturing product of this composition, an excellent mite capturing product capable of capturing mite approaching the product in a short time can be provided.

The characteristic structure of the mite capture method of the present invention for solving the above-mentioned problem is that any of the above-mentioned mite capture products is placed in the place where the mite lives or in the vicinity thereof to attract and capture the mite.

According to the mite capturing method of the present invention, since the mite capturing product of the present invention is used, a mite capturing method can be provided which has an excellent mite attracting effect, can surely and safely capture the attracted mite, and can expel the mite.

The following is a detailed description of the embodiments of the mite capturing product and the mite capturing method of the present invention with reference to the drawings. In addition, in each figure, the components of the mite capturing product do not strictly reproduce the actual shape, size, position relationship, thickness relationship of each layer, scale, etc., but are appropriately exaggerated or simplified for the convenience of explanation. In addition, the present invention is not intended to be limited to the embodiments described below or the components described in the drawings.

<First embodiment> [Mite capturing product] FIG. 1 is a schematic cross-sectional view of a mite capturing product 100 according to the first embodiment of the present invention. The mite capturing product 100 is formed by laminating a fiber structure 10 and an adhesive 20. Although FIG. 1 shows an example in which two fiber structures 10 are laminated on both sides of the adhesive 20, the mite capturing product 100 may be a structure in which only one fiber structure 10 is laminated on one side of the adhesive 20. In addition, although FIG. 1 shows an example in which only one layer of the fiber structure 10 is laminated on one side of the adhesive 20, the mite capturing product 100 may also be a structure in which two or more layers of the fiber structure 10 are laminated on one side of the adhesive 20.

The mite capturing product 100 is a product used to be placed in or near a place where mite inhabits to attract and capture mite. In the mite capturing product 100, the fiber structure 10 attracts the mite by itself and fixes the mite inside. The mite capturing product 100 can capture the mite by further laminating the fiber structure 10 on the adhesive 20, and the fiber structure 10 can make the attracted mite contact with the adhesive 20 and fix it on the surface. The mite capturing product 100 is preferably in the form of a sheet because it is laid under bedding, tatami, rugs, carpets, etc., which are places where mite inhabit, or inserted between the seat and backrest of a sofa, etc. The shape of the mite capturing product 100 in a plane view is not particularly limited, but can be square, polygonal, circular, elliptical, etc. Such shapes are preferred because they are easy to handle.

In this way, the mite capturing product 100 can be configured to not contain insecticides and/or repellents because it can attract mites through the fiber structure 10. Therefore, basically, the mite attracting effect will not be greatly weakened. In addition, since it does not contain insecticides and/or repellents, even people who are sensitive to chemicals can use it with peace of mind.

The fiber structure 10 is a woven or knitted fabric with raised hair. The texture of the woven or knitted fabric is not particularly limited, but preferably a plain texture. The mite capturing product 100 utilizes the phenomenon that mites are specifically attracted to the fiber structure 10 with raised hair, effectively attracts mites to the fiber structure 10, and makes the attracted mites stay in the fiber structure 10 or wander in the fiber structure 10.

The elongation of the yarn constituting the fiber structure 10 is preferably 10% or less, more preferably 1 to 5%, and even more preferably 1 to 3%. The elongation is measured according to the JIS method of "JIS L 1095 General spinning test method". Specifically, a load is applied to the yarn serving as a sample using a tensile testing machine, and the extension (cm) when the sample is cut is divided by the original length (cm) of the sample, and the result is expressed as a percentage (%). If the elongation of the yarn constituting the fiber structure 10 is 10% or less, a mite capturing product can be provided in which more mites are attracted to the fiber structure 10 and the capturing performance is better. Although the detailed mechanism of why the fiber structure 10 composed of yarn having an elongation of 10% or less has an excellent mite attracting effect is not clear, it is expected that the elongation of the yarn constituting the fiber structure 10 is related to the preference of mites.

The fiber material of the yarn constituting the fiber structure 10 is preferably a natural plant fiber, and more preferably includes resilient fiber and/or seed hair fiber. Examples of resilient fiber include jute, linen, ramie, hemp, and kenaf. The yarn formed by resilient fiber has a high attraction to mites due to its fluffy texture, and is suitable for use. Among them, the attraction to mites is extremely high, so jute and ramie are more preferably used, and jute is more preferably used. Seed hair fiber includes cotton and kapok. When using yarn made of seed hair fibers, it is preferable to use card yarn because it generates appropriate fluff to the fiber structure 10. The elongation of the yarn made of such toughened fiber and seed hair fibers is 10% or less.

FIG2 is an enlarged image of the fiber structure 10. The fiber structure 10 is a yarn constituting the fiber structure 10, but it is preferably woven in a manner to have spaces through which mites can pass. In addition, the fiber structure 10 is preferably a woven or knitted fabric, and its yarn density is preferably 10 to 100 yarns/10 cm, more preferably 15 to 60 yarns/10 cm, and even more preferably 30 to 50 yarns/10 cm. Here, the so-called "yarn density" refers to the number of warp yarns or weft yarns contained in a 10 cm wide woven fabric when the fiber structure 10 is a woven fabric, and the number of transverse coils or longitudinal coils contained in a 10 cm wide woven fabric when the fiber structure 10 is a knitted fabric. If the yarn density of the fiber structure 10 is within the above range, as shown in the image of FIG. 2, it becomes like the presence of appropriate fluff 12 between the yarns 11 constituting the fiber structure 10, which can attract more mites. Furthermore, if the interval between the yarns constituting the fiber structure 10 is air-permeable and allows mites to pass through, it is preferably 0.05 to 15 mm, more preferably 0.3 to 10 mm, and even more preferably 0.5 to 5 mm. If the interval between the yarns constituting the fiber structure 10 is within the above range, there is a moderate amount of fluff between the yarns constituting the fiber structure 10, which can attract more mites.

The thickness of the fiber structure 10 is preferably 0.2 to 5 mm, more preferably 0.4 to 3 mm, and even more preferably 0.5 to 1.5 mm. If the thickness of the fiber structure 10 is within the above range, the attracted mites tend to stay in the fiber structure 10, and the capture performance is even better. In addition, the thickness of the fiber structure 10 refers to the thickness of the fiber structure 10 itself, but when the fiber structure 10 is a single-layer fabric or knitted fabric, the thickness of the yarn constituting the fiber structure 10 can be regarded as the thickness of the fiber structure 10.

The unit area weight of the fiber structure 10 is preferably 10-1500 g/m ² , more preferably 20-1000 g/m ² , further preferably 100-700 g/m ² , and most preferably 200-600 g/m ² . When the unit area weight of the fiber structure 10 is within the above range, the attracted mites tend to stay in the fiber structure 10, and the capture performance is better.

Next, the inventors found that the novel specific parameters obtained by the thickness and unit area weight of the fiber structure 10 can be used to evaluate the performance of attracting and capturing mites. Specifically, when the thickness of the fiber structure 10 is set to a (mm) and the unit area weight of the fiber structure 10 is set to b (g/m ² ), it is preferred to satisfy the following formula (1): 0.1≦(a ² /b)×100≦1.0 •••(1) It is more preferred to satisfy the following formula (2): 0.2≦(a ² /b)×100≦0.7 •••(2). When the fiber structure 10 satisfies the above formula, the fiber structure 10 becomes a moderately dense fiber, more mites are attracted to the fiber structure, and the fiber structure becomes a better capture performance.

In addition, the fiber structure 10 may be subjected to a softening process to improve the texture as long as the function of attracting mites is not affected, or may be colored in a color that easily attracts mites or a color that is inconspicuous when placed in a room.

The adhesive body 20 is formed with an adhesive layer 22 on a sheet-like substrate 21, and the adhesive layer 22 is contacted to fix the mites. Although it is preferable to form the adhesive layer 22 on both sides of the substrate 21, it can also be formed on only one side. When the adhesive layer 22 is formed on both sides of the substrate 21, the chance of mites contacting the adhesive layer 22 increases, and the capture performance can be improved. When the adhesive layer 22 is formed on only one side of the substrate 21, the operability of the mite capture product 100 can be improved.

The substrate 21 preferably has a suitable rigidity and flexibility so that the mite trapping product 100 can be easily inserted with only a slight gap. For example, paper such as thick paper and corrugated paper, resin sheets such as PE, PP, PET, PVC, and metal plates can be used. The thickness of the substrate 21 is preferably 0.02 to 3 mm. If the thickness of the substrate 21 is within the above range, it has a suitable rigidity and flexibility so that the mite trapping product 100 can be easily inserted with only a slight gap.

The adhesive layer 22 is formed by attaching a double-sided tape to the substrate 21, or by applying an adhesive to the substrate 21. As the adhesive, for example, a general-purpose adhesive such as a rubber adhesive, an acrylic adhesive, a hot melt adhesive, and a silicone adhesive can be used. As the rubber adhesive, natural rubber adhesive, styrene-butadiene rubber adhesive, recycled rubber adhesive, polyisobutylene-butylene rubber adhesive, polybutene adhesive, and block copolymer adhesive can be listed. These adhesives can be used alone or in combination.

[Attraction and capture performance] The mite capturing product 100 preferably attracts and captures mite species that have invaded an area within a radius of 1m or less. Here, "attraction and capture" not only refers to the state in which the attracted mite species are fixed on the surface of the adhesive 20, but also includes the state in which the attracted mite species remain inside the mite capturing product 100, especially in the fiber structure 10. By attracting and capturing mite species that have invaded an area within a radius of 1m or less, mite species that are close to the mite capturing product 100 can be surely captured and expelled.

Although the mite trapping product 100 varies depending on the reproduction conditions of the mite or the installation location, it can lure and capture mite species close to the mite trapping product 100 within 24 hours. 24 hours is a very short time for capturing mite species, and the mite trapping product 100 is practical.

The mite capturing product 100 can attract and capture mites for at least 20 days or 90 days. Although 20 days is a practical period for continuous mites capture, mites can be captured and expelled for a longer period. For example, the mite capturing product 100 can be designed to capture mites for 90 days by selecting the type of attractant or adhesive.

The mite capturing product 100 constructed as above comprises: the fiber structure 10 with raised hairs and the adhesive 20 for attaching the mite. First, the mite is attracted to the fiber structure 10 with raised hairs, and the attracted mite stays in the fiber structure 10, or wanders in the fiber structure 10, and then the mite is attached to the adhesive 20, and becomes a mite with excellent capturing performance. Moreover, the mite capturing product 100 can be driven away by simply discarding the mite capturing product 100. Moreover, Mite Trapping Products 100 does not use pesticides or repellents, so even people who are allergic to chemicals can use it with confidence.

<Second embodiment> [Mite capturing product] FIG. 3 is a schematic cross-sectional view of a mite capturing product 200 according to the second embodiment of the present invention. The mite capturing product 200 has an attractant 30 disposed between the fiber structure 10 and the adhesive 20, and has the same structure as the mite capturing product 100 described in the first embodiment. The mite capturing product 200 has a better capturing performance due to the synergistic effect of the fiber structure 10 having an attracting effect on mites and the attractant 30 by disposing the attractant 30.

The attractant 30 can be any one that has the effect of attracting mites, for example, a powder or an extract containing animal, plant, yeast, or other food ingredients, or a flavoring ingredient that has the effect of attracting mites. The attractant 30 can be a powdered or granular food pulverized material or a solidified food pulverized material, a food pulverized material stored in a bag such as a breathable non-woven fabric, or an extract adsorbed on various retainers. For example, in FIG. 3 , although the attractant 30 is shown as a solid tablet disposed between the fiber structure 10 and the adhesive 20, the attractant 30 may be added by spreading or dripping a liquid extract on the adhesive 20, or kneading, adsorbing, or impregnating the fiber structure 10. In addition, when the attractant 30 is applied to the adhesive 20 and the adhesive is applied to the substrate 21 to form the adhesive layer 22, the attractant 30 may be directly applied to the substrate 21 together with the adhesive.

<Third embodiment> [Mite capturing product] FIG. 4 is a schematic cross-sectional view of a mite capturing product 300 according to the third embodiment of the present invention. The mite capturing product 300 is a fiber structure 10 covered with a breathable sheet 40, and has the same structure as the mite capturing product 200 described in the second embodiment.

The air-permeable sheet 40 is a sheet having holes of a size that can pass through mites. The air-permeable sheet 40 is preferably non-fuzzy. Although the detailed mechanism is not clear, when at least a portion of the fiber structure 10 having fuzz is covered with the air-permeable sheet 40 without fuzz, the attraction to mites is further increased, and mites become easier to invade the inside of the product, so the mite capturing product 300 becomes one with better capturing performance. The material of the air-permeable sheet 40 is not particularly limited unless it is a mite-repellent material. For example, a net or non-woven fabric made of a resin such as polyethylene, polyester, or nylon, a woven or knitted fabric made of chemical fibers, or a woven or knitted fabric made of natural fibers can be used. As natural fibers used in the air-permeable sheet 40, animal fibers such as wool and silk or seed hair fibers can be listed. When seed hair fibers are used in the air-permeable sheet 40, combed yarn is preferably used to suppress fuzzing. Among these, the breathable sheet 40 is preferably a net or non-woven fabric made of resins such as polyethylene, polyester and nylon, and a woven or knitted fabric woven from chemical fibers. It is more preferably a net or non-woven fabric made of resins such as polyethylene, polyester and nylon, and the most preferred is a net made of resins such as polyethylene, polyester and nylon.

The breathable sheet 40 is formed in a manner of covering at least a portion of the fiber structure 10, for example, as a bag body enclosing the fiber structure 10 and the adhesive body 20. The mite-trapping product 300 is further enhanced in its attractiveness to mites by providing the breathable sheet 40. In addition, since the raised hair of the fiber structure 10 will not be exposed to the outer surface of the product, the mite-trapping product 300 can be easily inserted into a small gap (for example, under a carpet that cannot be turned up at all, between bedding stored in a closet, and between the backrest and seat of a sofa, etc.), thereby reducing the irritation to the user's fingers during installation or disposal after use, thereby achieving excellent usability.

<Mite Capturing Method> The mite capturing method of the present invention is to attract and capture mite by placing the mite capturing products 100 to 300 described above in a place where mite inhabit or in the vicinity thereof. According to the mite capturing method of the present invention, since the mite capturing products 100 to 300 of the present invention are used, a mite capturing method can be provided which has an excellent mite attracting effect, can reliably and safely capture the attracted mite, and can expel the mite. [Example]

Mite-capturing products having the characteristic structure of the present invention (Examples 1 to 16) were prepared, and the mite-capturing test and elongation were measured. In addition, for comparison, mite-capturing products not having the characteristic structure of the present invention (Comparative Examples 1 to 7) were prepared, and the same test and measurement were carried out.

[Example 1] A rubber hot-melt adhesive was applied on both sides of a PET resin sheet with a thickness of 0.05 mm to prepare an adhesive body. A fabric was laminated on both sides of the adhesive body to form a fiber structure body, and a mite-trapping product of Example 1 consisting of three layers was obtained. The fabric used for the fiber structure body was a plain-weave fabric made of jute yarn with a yarn density of 28 to 38 yarns/10 cm, with a thickness of 0.86 mm and a unit area weight of 128 g/m ² .

[Example 2] In the fiber structure, jute yarn was used with a yarn density of 45 to 48 yarns/10 cm to form a plain weave fabric with a thickness of 1.11 mm and a unit area weight of 600 g/ ^m2 . The other steps were the same as those of Example 1 to obtain the mite capture product of Example 2.

[Example 3] In the fiber structure, jute yarn was used in a manner of yarn density of 43 to 47 yarns/10 cm to form a plain weave fabric with a thickness of 0.86 mm and a unit area weight of 255 g/m ^2. The other steps were the same as in Example 1 to obtain the mite capture product of Example 3.

[Example 4] In the fiber structure, jute yarn was used in a manner of yarn density of 35 to 38 yarns/10 cm to form a plain weave fabric with a thickness of 0.61 mm and a unit area weight of 227 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capture product of Example 4.

[Example 5] In the fiber structure, jute yarn was used in a manner of yarn density of 31 to 38 yarns/10 cm to form a plain weave fabric with a thickness of 0.9 mm and a unit area weight of 215 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capturing product of Example 5.

[Example 6] In the fiber structure, jute yarn was used in a manner of yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 2.64 mm and a unit area weight of 946 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capture product of Example 6.

[Example 7] In the fiber structure, jute yarn was used in a manner of yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.75 mm and a unit area weight of 113 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capturing product of Example 7.

[Example 8] In the fiber structure, jute yarn was used in a manner of yarn density of 10 to 12 yarns/10 cm to form a plain weave fabric with a thickness of 0.75 mm and a unit area weight of 72 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capturing product of Example 8.

[Example 9] In the fiber structure, hemp yarn was used in a manner of yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.36 mm and a unit area weight of 26 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capture product of Example 9.

[Example 10] Ramie yarn was used as the fiber structure in a manner of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.59 mm and a unit area weight of 118 g/m ^2. The other steps were the same as those of Example 1 to obtain the mite capture product of Example 10.

[Example 11] As the fiber structure, a flax yarn with a yarn density of 19 to 22 yarns/10 cm was used to form a plain weave fabric with a thickness of 0.57 mm and a unit area weight of 89 g/m ^2. The other steps were the same as those of Example 1, and the mite capturing product of Example 11 was obtained.

[Example 12] Kenaf yarn was used as the fiber structure in a manner of yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.75 mm and a unit area weight of 131 g/m ^2. The other steps were the same as those of Example 1 to obtain the mite capture product of Example 12.

[Example 13] A rubber-based hot-melt adhesive is applied on both sides of a PET resin sheet having a thickness of 0.05 mm to produce an adhesive. Fabrics are laminated on both sides of the adhesive to form a fiber structure, thereby obtaining a laminate consisting of three layers. The fabric used for the fiber structure is a plain weave fabric made of jute yarn with a yarn density of 43 to 47 yarns/10 cm, with a thickness of 0.86 mm and a unit area weight of 255 g/ ^m2 . The laminate is sealed in a bag made of a polyethylene net (breathable sheet) to obtain the mite capturing product of Example 13 consisting of five layers. The polyethylene net used had a mesh spacing of 1 mm, a thickness of 0.03 mm, and a unit area weight of 67 g/m ^2. The polyethylene net had no lint, and when a 10 cm line segment was set on the polyethylene net, the number of fibers intersecting the line segment was 95 to 110.

[Example 14] A rubber-based hot-melt adhesive is applied on both sides of a PET resin sheet having a thickness of 0.05 mm to produce an adhesive. Fabrics are laminated on both sides of the adhesive to form a fiber structure, thereby obtaining a laminate consisting of three layers. The fabric used for the fiber structure is a plain weave fabric made of jute yarn with a yarn density of 35 to 38 yarns/10 cm, a thickness of 0.61 mm, and a unit area weight of 227 g/ ^m2 . The laminate is sealed in a bag made of a polyethylene net (breathable sheet) to obtain the mite capturing product of Example 14 consisting of five layers. The polyethylene net used had a mesh spacing of 1 mm, a thickness of 0.03 mm, and a unit area weight of 67 g/m ^2. The polyethylene net had no lint, and when a 10 cm line segment was set on the polyethylene net, the number of fibers intersecting the line segment was 95 to 110.

[Example 15] In the fiber structure, a 30-number cotton yarn was used with a yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.2 mm and a unit area weight of 31 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capture product of Example 15.

[Example 16] In the fiber structure, kapok yarn was used in a manner that the yarn density was 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 1.11 mm and a unit area weight of 311 g/m ^2. The rest was carried out in the same manner as in Example 1 to obtain the mite capture product of Example 16.

[Comparative Example 1] In the fiber structure, wool yarn was used with a yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.67 mm and a unit area weight of 189 g/m ^2. The other steps were the same as those in Example 1 to obtain the mite capture product of Comparative Example 1.

[Comparative Example 2] In the fiber structure, a nylon yarn No. 60 was used with a yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.03 mm and a unit area weight of 16 g/m ^2. The other steps were the same as those in Example 1 to obtain the mite capture product of Comparative Example 2.

[Comparative Example 3] In the fiber structure, a polyester yarn with a yarn density of 19 to 22 yarns/10 cm was used to form a plain weave fabric with a thickness of 0.04 mm and a unit area weight of 22 g/m ^2. The other steps were the same as those in Example 1, and the mite capture product of Comparative Example 3 was obtained.

[Comparative Example 4] In the fiber structure, acrylic yarn was used with a yarn density of 19 to 22 yarns/10 cm to form a plain weave fabric with a thickness of 0.44 mm and a unit area weight of 375 g/m ^2. The other steps were the same as those in Example 1 to obtain the mite capture product of Comparative Example 4.

[Comparative Example 5] A rubber-based hot-melt adhesive was applied on both sides of a 0.05 mm thick PET resin sheet to produce an adhesive. A 6 mm thick polyurethane sponge was laminated on both sides of the adhesive to obtain a mite capture product of Comparative Example 5 consisting of three layers.

[Comparative Example 6] A polyethylene net was laminated on both sides of a 0.05 mm thick PET resin sheet coated with an adhesive of a rubber-based hot melt adhesive as a fiber structure, and a mite-trapping product of Comparative Example 6 consisting of three layers was obtained. The polyethylene net used had a mesh spacing of 1 mm, a thickness of 0.03 mm, and a unit area weight of 67 g/ ^m2 . The polyethylene net had no lint, and when a 10 cm line segment was set on the polyethylene net, the number of fibers intersecting the line segment was 95 to 110.

[Comparative Example 7] A rubber-based hot-melt adhesive is applied to both sides of a 0.05 mm thick PET resin sheet to produce an adhesive. Fabrics are laminated on both sides of the adhesive to form a fiber structure, thereby obtaining a laminate consisting of three layers. The fabric used for the fiber structure is a plain weave made of wool yarn with a yarn density of 19 to 22 yarns/10 cm, with a thickness of 0.67 mm and a unit area weight of 189 g/ ^m2 . The laminate is sealed in a bag made of a polyethylene net (breathable sheet) to obtain the mite capturing product of Comparative Example 7 consisting of five layers. The polyethylene net used had a mesh spacing of 1 mm, a thickness of 0.03 mm, and a unit area weight of 67 g/m ^2. The polyethylene net had no lint, and when a 10 cm line segment was set on the polyethylene net, the number of fibers intersecting the line segment was 95 to 110.

(1) Mite capture test For the mite capture products of Examples 1 to 16 and Comparative Examples 1 to 7, a 3 cm × 3 cm sample was cut out and placed in the center of a 4.5 cm diameter glass shallow dish (1.5 cm height). The previous 4.5 cm diameter shallow dish was placed in the center of a 9 cm diameter (2 cm height) glass shallow dish, and about 10,000 dust mites were placed inside the 9 cm diameter glass shallow dish. The samples were left standing in a dark place at a room temperature of 25°C and a humidity of 80%. After 24 hours, the number of mites attached to the adhesive of the sample was counted as the number of captures. The test was repeated 3 times for the mite-trapping products of Examples 1 to 16 and the mite-trapping products of Comparative Examples 1 to 7, and the average number of captures was calculated. For comparison, the sticker used only in the mite-trapping product of Example 1 was cut into a size of 3 cm × 3 cm and placed in the center of a glass shallow dish with a diameter of 4.5 cm. The same test was conducted with the mite-trapping products of the Examples and Comparative Examples, and the number of mites captured by the sticker was counted. The capture number of the mite capture products of Examples 1 to 16 and the mite capture products of Comparative Examples 1 to 7 were calculated by dividing the capture number of the comparison by the value as the capture ratio.

(2) Elongation For the mite-trapping products of Examples 1 to 16 and the mite-trapping products of Comparative Examples 1 to 4 and 7, yarns were collected from the fabrics constituting the fiber structure and the elongation (%) was measured according to the JIS method of "JIS L 1095 General Spinning Test Methods".

The details, test results, and measurement results of the mite capture products of Examples 1 to 16 and Comparative Examples 1 to 7 are shown in Table 1.

The results of the mite capture test showed that the mite capture products of Examples 1 to 16 using a fabric with raised hair as the fiber structure, compared with the mite capture products of Comparative Examples 1 to 7 using a material without raised hair as the fiber structure, all of them captured more mite and had an excellent attracting effect on mite. Among them, the mite capture products of Examples 1 to 7 and 10 using jute or ramie as the fiber material of the fiber structure, in particular, captured more mite than Examples 15 and 16 using cotton or kapok as seed hair fibers. The mite trapping product of Example 8 using jute having low yarn density and unit area weight also has a better trapping ratio than that of Example 16 using kapok. Therefore, it is considered that by using jute or ramie as the fiber material of the fiber structure, a better attracting effect for mites can be obtained.

The mite trapping products of Examples 1 to 16 have a parameter of 0.13 to 0.78 obtained by using the thickness a of the fiber structure and the unit area weight b (a ² /b)×100. Therefore, it is considered that when the fiber structure uses a napped fabric, the above parameter is approximately in the range of 0.1 to 1.0, which makes the mite attraction effect excellent.

In the mite-trapping products of Examples 1 to 5, 7 and 8, in which jute is used as the fiber material of the fiber structure, the larger the unit area weight, the larger the capture ratio. However, although jute is used as the fiber material of the fiber structure, the mite-trapping product of Example 6, in which the unit area weight of the fiber structure is 946 g/m ² , has a smaller capture ratio than the mite-trapping product of Example 2, in which the unit area weight of the fiber structure is 600 g/m ² . Therefore, it is considered that when jute is used as the fiber material of the fiber structure, the greater the unit area weight of the fiber structure is within the range of 72 to 600 g/ ^m2 , the greater the unit area weight of the fiber structure is, the better the effect of attracting and fixing mites is.

The mite capturing products of Examples 13 and 14 are obtained by enclosing the mite capturing products of Examples 3 and 4 in bags made of a polyethylene net (breathable sheet). In the mite capturing products of Examples 13 and 14, a polyethylene net is used as a breathable sheet, while in the mite capturing product of Comparative Example 6, a fiber structure is used alone. In this case, it is confirmed that the capture ratios of the mite capture products in Examples 13 and 14 are 162.2 and 160.6, respectively, which are greater than the capture ratio of 138.4 of the mite capture product in Example 3 and the capture ratio of 4.8 of the mite capture product in Comparative Example 6, which is 143.2 in total, or the capture ratio of 121 of the mite capture product in Example 4 and the capture ratio of 4.8 of the mite capture product in Comparative Example 6, which is 125.8 in total, thereby improving the capture performance. On the other hand, in the case of Comparative Example 7, in which the mite-capturing product of Comparative Example 1, whose fiber material is wool, was enclosed in a bag made of a polyethylene net (air-permeable sheet), no effect of improving the capture performance was confirmed. From these results, it is believed that by covering the fiber structure with raised hair with an air-permeable sheet without raised hair, not only the attracting effect of the fiber structure and the air-permeable sheet is obtained, but also a certain synergistic effect is obtained, and the attracting effect on mites is improved, although the detailed mechanism is unclear.

A mite capturing product having the characteristic structure of the present invention (Example 17) and a product in which an adhesive body is sealed in a bag (Comparative Example 8) were prepared and the capturing distance test was carried out.

[Example 17] A rubber-based hot-melt adhesive was applied on both sides of a thick paper of 2 mm thickness and 90 mm × 105 mm size to produce an adhesive. A kneaded and cured tablet (diameter 15 mm × thickness 3 mm) containing animal and plant food ingredients was placed on one side of the adhesive, and a fabric of 100 mm × 115 mm size was laminated on both sides of the adhesive to form a fiber structure, thereby obtaining a laminate consisting of three layers. The fabric used for the fiber structure was a plain weave made of jute yarn with a yarn density of 43 to 47 yarns/10 cm, a thickness of 0.86 mm, and a unit area weight of 255 g/m ² . The laminate was sealed in a bag made of a polyethylene net of 120 mm x 150 mm in size, thereby obtaining a mite-trapping product of Example 17 consisting of five layers. The polyethylene net used had a mesh spacing of 1 mm, a thickness of 0.03 mm, and a unit area weight of 67 g/m ^2. The polyethylene net had no lint, and when a line segment of 10 cm was set on the polyethylene net, the number of fibers intersecting the line segment was 95 to 110.

[Comparative Example 8] The adhesive used in Example 17 is sealed in a bag made of the polyethylene net used in Example 17 to obtain the product of Comparative Example 8. That is, the product of Comparative Example 8 is a product for capturing mites in Example 17, but does not use a kneaded solidified tablet containing animal and plant food ingredients and a fiber structure.

(3) Capture distance test Figure 5 is a diagram illustrating the test method of the capture distance test. An unused polyester sheet X of 50 cm × 100 cm, which is 1/4 the size of a general mattress (100 × 200 cm), is laid on a wooden board and fixed. A groove is dug in the wooden board at the portion W corresponding to the outer periphery of the sheet X, and water is poured in to prevent the escape of mites or the mixing of other mites. Here, as shown in Figure 5, the sheet X is set with corners A, corners B, and the center of the short side C. The distance D1 from corner B to corner A is about 110 cm, and the distance D2 from corner B to the center of the short side C is about 25 cm. The mite capture product Y of Example 17 was set at the corner A of the sheet X and the center C of the short side of the sheet X, and about 1,000 dust mites were placed together with the culture medium at the corner B of the sheet X. Three such wooden boards were prepared and placed in a dark place at 25°C and 75%RH. After 24 hours and 20 days, the mites attached to the adhesive of the mite capture product Y were counted. The same capture distance test was also conducted for the product of Comparative Example 8. The mite capture product Y corresponds to the mite capture product 300 of the present invention.

As a result of the capture distance test, the number of mites captured by the mites of Example 17 set at the center C of the short side on the product Y after 24 hours was 252 to 334. In contrast, the number of mites captured by the product of Comparative Example 8 under the same conditions was 0. In addition, the number of mites captured by the mites of Example 17 set at the corner A on the product Y after 20 days was 37 to 76. In contrast, the number of mites captured by the product of Comparative Example 8 under the same conditions was 0. From these results, it is confirmed that the mite-trapping product Y of Example 17 can attract and capture mite species that have invaded an area of at least 1 m. Since the distance D1 is approximately equivalent to the distance from the four corners of a general mattress to the center where the diagonal lines intersect, it is believed that the mite-trapping product Y of Example 17 can effectively attract and capture mite species that inhabit the mattress and expel them by being placed near the center of the mattress in actual use. Furthermore, since the distance D2 is approximately equal to the distance from the end of a general mattress to the end of a pillow, it is believed that by placing the mite-capturing product Y of Example 17 on the pillow, the mite inhabiting the pillow can be lured and captured within 24 hours and can be expelled. Furthermore, although it is natural, it is believed that even if the mite-capturing product Y is placed on the shoulders or feet, the mite can be effectively lured and captured and expelled.

[Industrial availability]

The mite capturing product and mite capturing method of the present invention can be used to expel mites hiding in the house.

10: Fiber structure

12: Raising

20: Adhesive body

30: Attractant

40: Breathable sheet

100: Mite trapping products

200: Mite trapping products

300: Mite trapping products

[Figure 1] Figure 1 is a schematic cross-sectional view of a mite-capturing product according to the first embodiment of the present invention. [Figure 2] Figure 2 is an enlarged image of a photographed fiber structure. [Figure 3] Figure 3 is a schematic cross-sectional view of a mite-capturing product according to the second embodiment of the present invention. [Figure 4] Figure 4 is a schematic cross-sectional view of a mite-capturing product according to the third embodiment of the present invention. [Figure 5] Figure 5 is a diagram for explaining the test method of the capture distance test.

10: Fiber structure

20: Adhesive body

21: Base material

22: Adhesive layer

100: Mite trapping products

Claims (8)

A mite-catching product comprises: a fiber structure with raised hairs and an adhesive for attaching mites. The fiber material constituting the fiber structure is jute or ramie. The mite capturing product of claim 1, wherein the elongation of the fiber constituting the fiber structure is 10% or less. The mite capturing product of claim 1 or 2, wherein the fiber structure is a woven or knitted fabric having a yarn density of 10 to 100 yarns/10 cm. The mite capturing product of claim 1 or 2, wherein an attractant is disposed between the fiber structure and the adhesive. The mite capturing product of claim 1 or 2, wherein at least a portion of the fiber structure is covered with a non-hairy breathable sheet. In the mite capturing product of claim 1 or 2, when the thickness of the fiber structure is a (mm) and the unit area weight of the fiber structure is b (g/m ² ), the following formula (1) is satisfied: 0.1≦(a ² /b)×100≦1.0 •••(1). If the mite trapping product is claimed in item 1 or 2, it does not contain insecticide and/or repellent. A method for capturing mites, comprising placing the mites capturing product according to any one of claims 1 to 7 at or near a place where mites inhabit, to induce and capture the mites.

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