JP7291607B2 - Articles for trapping ticks - Google Patents

Description

The present invention relates to a mite trapping article.

A tick-removing sheet described in Patent Document 1 is known as an article for catching ticks used between bedding, between a carpet and a floor, or in a closet. This mite-removing sheet is obtained by placing a single-sided adhesive sheet on an attractant sheet with the non-adhesive surface facing the attractant sheet, and wrapping them with a cloth. The attractant sheet is obtained by enclosing a powder containing a mite attractant inside a non-woven fabric bag or paper bag having air permeability that allows the scent of the mite attractant to pass through. As the fabric, a woven or knitted fabric having a rough texture through which mites can pass is used. The constituent fibers of the fabric are provided with an allergen-suppressing component.

With such a structure, the tick-removing sheet easily emits the fragrance of the tick attractant to the outside, is not bulky even when inserted between beddings, and does not cause allergies to dead ticks. can get.

Utility Model Registration No. 3138086

An object of the present invention is to provide a mite-catching article with improved mite-catching performance compared to the mite-removing sheet described in Patent Document 1 described above.

In order to achieve this object, the article for catching mites of the present invention comprises an attractant holder holding a mites attractant and an adhesive for catching mites inside a bag made of needle-punched nonwoven fabric. The needle-punched non-woven fabric that constitutes the accommodation bag, which accommodates the mite trap containing ^the Characterized by

The mite-catching article of the present invention preferably has needle-punched microporous holes each having a pore diameter of 0.1 to 0.6 mm on the surface of the needle-punched nonwoven fabric.

The mite-catching article of the present invention preferably contains an allergen-suppressing component.

According to the mite-catching article of the present invention, the containing bag for the attractant holding body and the mite-catching body has a thickness of 0.5 to 3.0 mm and a basis weight of 100 to 500 g/m ² . Since it is composed of non-woven fabric, it exhibits voids and bulkiness that mites prefer to hide in, and for this reason, mites can be captured more effectively than conventional products. Further, for unknown reasons, by making the needle-punched non-woven fabric black, it is possible to improve the ability to capture mites compared to other colors such as white.

Further, according to the mite-catching article of the present invention, by containing an allergen-suppressing component in addition to the above, it is possible to further prevent the captured mite carcasses from causing allergies.

The attractant holder is preferably in the form of a sheet in which, for example, a powder containing a mite attractant is contained in a nonwoven fabric bag or a paper bag having air permeability through which the scent of the mite attractant can pass. can be used for

As the powder containing the mite attractant, there are used those in which the mite attractant is contained in microcapsules, and those in which the mite attractant is adsorbed on resin powder. As the tick attractant, a conventionally known one, such as fruit extract, almond, chocolate, or the like, which does not cause discomfort to humans, is used. Among them, it is preferable to use sustained-release microcapsules containing a substance obtained by fermenting a fruit extract with yeast. This is because a fruit extract fermented with yeast has an excellent mites attracting effect, and since the microcapsules have a sustained release property, the mites attracting effect can be maintained for a long period of time.

When the powder containing the above-described mite attractant is housed in a non-woven fabric bag or paper bag, an attractant holder is formed in the housed state. The powder containing the mite attractant may be stored as it is in a non-woven fabric bag or a paper bag, but the powder may be unevenly distributed in the bag. It is preferable to store the same powder therein. It is also preferable to carry the powder containing the mite attractant in or on the surface of the non-woven fabric sheet or paper sheet and then store it in the bag. In order to support the powder in a nonwoven fabric sheet or paper sheet, a plurality of nonwoven fabric sheets or paper sheets may be laminated and the powder may be sandwiched between the layers. In order to support the powder on the surface of the non-woven fabric sheet or paper sheet, the powder may be dispersed on the surface of the non-woven fabric sheet or paper sheet and then fixed by weak pressure.

As the non-woven fabric or paper that constitutes the bag, a material having air permeability that allows the scent of the mite attractant to pass through is adopted. This is because if the scent of the tick attractant does not pass through, the attracting effect will be insufficient. Further, the non-woven fabric or paper preferably has a roughness of such a degree that the powder containing the mite attractant does not leak to the outside. Since the powder containing the mite attractant is generally agglomerated and clumped, the non-woven fabric or paper may have a larger mesh size than the powder. If the amount is too high, aggregated particles of the powder will fall off. As the non-woven fabric or paper, it is preferable to employ those obtained by a paper-making method. The nonwoven fabric or paper obtained by the papermaking method generally has air permeability that allows the scent of the mite attractant to pass through, and fineness that can prevent falling off of aggregated powder particles. because

Pulp fibers, natural fibers, synthetic fibers, and the like are used as constituent fibers of the nonwoven fabric or paper. In particular, it is preferable to contain heat-fusible fibers as part of the constituent fibers. This is because the bag can be formed by the following means. That is, between two rectangular non-woven fabrics or papers, the powder containing the mite attractant is accommodated as it is, or after inserting the non-woven fabric sheet or paper sheet carrying the powder, the four sides of the edges are By heating and pressurizing, the heat-fusible fibers can be fused, and the fibers can be joined together to form a bag. In addition, after folding one sheet of nonwoven fabric or paper and inserting the powder between the two sheets formed by the folding, the three sides of the edge are heated and pressed to fuse the heat-fusible fibers. They can also be joined together to form a bag. By fusing and joining the edges of the bag body in this way, the powder is less likely to fall off from the edges of the finished attractant holder. When forming the bag body, it is permissible not only to fuse and join but also to sew the edges.

In addition to the attractant holder configured to contain the powder containing the tick attractant inside the bag described above, a single-sided adhesive sheet as a mite trap is superimposed on the sheet-like attractant holder, It is placed in a storage bag made of needle-punched nonwoven fabric. A single-sided pressure-sensitive adhesive sheet is a sheet-shaped support having a pressure-sensitive adhesive carried on one side thereof. On the other side of the support, the same support is exposed and no pressure-sensitive adhesive is carried. Therefore, in the single-sided pressure-sensitive adhesive sheet, it is the non-adhesive surface, that is, the other surface of the support that is in contact with the sheet-like attractant support. Therefore, the attractant holder and the single-sided pressure-sensitive adhesive sheet are not adhered to each other, but simply laminated. Therefore, the release of the scent from the attractant holder is not hindered. Conversely, if a double-sided pressure-sensitive adhesive sheet is used instead of the single-sided pressure-sensitive adhesive sheet described above, the attractant holder and the double-sided pressure-sensitive adhesive sheet will adhere to each other, hindering the release of fragrance.

Paper, non-woven fabric, woven fabric, etc. can be preferably used as the support for the single-sided pressure-sensitive adhesive sheet. As the adhesive in the single-sided adhesive sheet, for example, a highly viscous product available on the market, manufactured by JXTG Energy Co., Ltd. under the product name "Evertack" can be suitably used.

The single-sided adhesive sheet can be provided along only one side of the sheet-shaped attractant holder, or along one and the other side of the same attractant holder, that is, along both sides of the attractant holder. can also be provided. Providing along both sides of the attractant holder has the advantage of increasing the number of places where mites can be caught. The single-sided pressure-sensitive adhesive sheet preferably has a smaller area than the attractant holder. This is because the larger the exposed portion of the attractant holder, the easier it is to attract mites.

The mite-catching article of the present invention is obtained by enclosing the attractant holding member and the single-sided adhesive sheet (mite-catching member) in a housing bag made of needle-punched nonwoven fabric. This needle-punched nonwoven fabric has a thickness of 0.5 to 3.0 mm, a basis weight of 100 to 500 g/m ² , and is black. A more preferable thickness is 1.0 to 3.0 mm.

As described above, since the needle-punched nonwoven fabric has a thickness of 0.5 to 3.0 mm and a basis weight of 100 to 500 g/m ² , it exhibits voids and bulkiness in which mites tend to hide. . As a result, the attracting effect is enhanced, and the synergistic effect with the attracting action of the attractant significantly improves the ability to capture mites. If the thickness is less than 0.5 mm or the weight per unit area is less than 100 g/m ² , the voids and bulkiness in which mites prefer to hide cannot be obtained, and the mites trapping property cannot be improved. If the thickness exceeds 3.0 mm or the basis weight exceeds 500 g/m ² , the fragrant action of the attractant and the formation of voids through which mites can pass are inhibited, and no improvement in mites trapping properties is observed. In addition, the surface of the needle-punched nonwoven fabric preferably has micropores with a hole diameter of 0.1 to 0.6 mm for each hole formed by needle punching. Induction of mites to the sheet can be further enhanced. The needle-punched non-woven fabric constituting the storage bag has long fibers or short fibers as constituent fibers, and the constituent fibers can be formed using any thermoplastic resin. When the single filament fineness of the constituent fibers is 2 to 5 decitex, the softness of the needle-punched nonwoven fabric is good, and it is thought that the ability to capture mites is improved, which is preferable. Furthermore, for unknown reasons, the use of black nonwoven fabrics improves the ability to trap mites as compared to nonwoven fabrics of other colors such as white.

Constituent fibers of the needle-punched nonwoven fabric that constitutes the storage bag may be provided with an allergen-suppressing component. Conventionally known ingredients can be used as the allergen-suppressing ingredient. Specifically, polyvinylphenol such as poly-4-vinylphenol and poly-3-vinylphenol, poly-vinyl-3,4,5-hydroxybenzoate and poly-(1-vinyl-5-hydroxynaphthalene) Examples include aromatic hydroxy compounds, aromatic heterocyclic hydroxy compounds such as 2-hydroxyfuran, 2-hydroxythiophene, hydroxybenzofuran, and 3-hydroxypyridine. In particular, it is preferable to use poly-4-vinylphenol. Since these allergen-suppressing components are polymerizable components, if a solution mixed with other polymerizable monomers is applied to the needle-punched nonwoven fabric constituting the storage bag and then polymerized, it will become the constituent fibers of the needle-punched nonwoven fabric. An allergen-suppressing ingredient can be applied. When the allergen-suppressing component is added by such a method, the allergen-suppressing component is directly bound to the surface of the constituent fibers, making it difficult to fall off, so that the allergen-suppressing effect can be maintained for a long period of time. A method for applying such an allergen-suppressing component is described in detail in JP-A-2005-206955.

In order to obtain the mite-trapping article of the embodiment of the present invention, for example, a single-sided adhesive sheet (mite trapping body) of 20 cm long by 6 cm wide is placed on an attractant holding body of 25 cm long by 13 cm wide, on the support side. are placed in contact with the attractant holder, and both are put in a needle-punched non-woven fabric bag, and the opening edge of the bag is sewn together. If such an article for catching mites is inserted between bedding or between a carpet and a floor, mites are attracted, and the mites are captured by the adhesive of the single-sided adhesive sheet.

Example 1
The needle-punched non-woven fabric constituting the storage bag is a non-woven fabric made of long fibers with a single filament fineness of 3 decitex using a black-colored polyethylene terephthalate polymer, and the constituent fibers are entangled with each other by needle-punching, It has a basis weight of 200 g/m ² , a thickness of 2 mm, and needle-punched micropores with pore diameters distributed in the range of 0.1 to 0.5 mm (manufactured by Unitika Ltd., product name: Marix “AN200 Black”). Using.

In addition, 0.5 g of a mite attractant was prepared by filling a slow-release inorganic microcapsule with silicon dioxide (SiO ₂ ) as a wall material with a fruit extract and fermenting the fruit extract with yeast. Then, this mite attractant is sprinkled on a pulp sheet (size 80 mm × 200 mm, basis weight 100 g/m ² ), and tissue paper (size 80 mm × 200 mm, basis weight 24 g/m ² ) is laminated above and below, respectively. A pulp sheet is sandwiched between them, and these are stored inside a bag made of exterior nonwoven fabric "Hitron" (a product name of a paper nonwoven fabric manufactured by Nippon Paper Papylia Co., Ltd., size 100 mm × 200 mm, basis weight 30 g/m ² ), and the edges are heated. By crimping, an attractant holding body was formed.

A single-sided adhesive sheet (manufactured by JXTG Energy Co., Ltd., product name: Evertack Sheet) with a length of 200 mm and a width of 60 mm was prepared as a mite trap.

The needle-punched nonwoven fabric described above was cut into a rectangular shape of 248 mm length×148 mm width. Next, on one sheet-shaped attractant holder with a length of 200 mm × width of 100 mm, the above-mentioned single-sided adhesive sheet (mite catcher) with a length of 200 mm × width of 60 mm is placed, and the support side of the single-sided adhesive sheet is an attractant. It was placed so as to be in contact with the holder, and the whole was sandwiched between two needle-punched nonwoven fabrics. Then, the edge of the nonwoven fabric is overlocked with sewing thread (manufactured by Sanyama Co., Ltd., product name: Hoshikabuto Woolly color number 290 and Sankabutospun color number 290) to obtain an article for catching ticks of Example 1. rice field.

Example 2
The needle-punched non-woven fabric constituting the storage bag is a non-woven fabric made of long fibers with a single filament fineness of 3 decitex using a black-colored polyethylene terephthalate polymer, and the constituent fibers are entangled with each other by needle-punching, It has a basis weight of 300 g/m ² , a thickness of 3 mm, and needle-punched micropores with pore diameters distributed in the range of 0.1 to 0.5 mm (manufactured by Unitika Ltd., product name: Marix “AN300 Black”). Using. Then, the mite-catching article of Example 2 was obtained in the same manner as in Example 1 except for the above.

Comparative example 1
Instead of the needle-punched nonwoven fabric used in Example 1, a jacquard fabric (thickness: 0.57 mm) obtained using polyester false-twisted yarn was used as the fabric constituting the storage bag. A mite-catching article of Comparative Example 1 was obtained in the same manner as in Example 1 except for the above.

Comparative example 2
Compared with Example 2, the needle-punched nonwoven fabric constituting the storage bag was white in color and had a basis weight of 300 g/m ² and a thickness of 3 mm (manufactured by Unitika Ltd., product name: Marix "AN300 White"). A mite-catching article of Comparative Example 2 was obtained in the same manner as in Example 2 except for the above.

The mite-catching articles of Examples 1 and 2 and Comparative Examples 1 and 2 thus obtained were evaluated for mite-catching properties. Evaluation was performed based on the following method.

1. Tick catching property 1 (tick movement confirmation test 1)
A circle with a diameter of 45 mm was cut out from the mite-trapping articles obtained in Example 1 and Comparative Example 1 and used as a sample. In addition, when cutting out a circular sample from the mite-catching article, the center part of the mite-catching article should be the "fabric on the lower side of the storage bag / sheet-like attractant holder / single-sided adhesive sheet / storage bag. It was cut out so that all of the "upper fabric" was present in the laminate.

The sample was laid on the inner bottom surface of a 50 mm glass petri dish (inner diameter: about 45 mm), and a non-processed carpet (JIS L 1920 7.2 non-processed sample a) carpet of the same diameter was laid thereon.

Furthermore, a 30 mm glass petri dish (inner diameter of about 27 mm) was placed on the unfinished carpet, and a mite culture medium containing about 10,000 test mites was evenly spread on the inner bottom of this 30 mm glass petri dish, which was used as a test specimen. Nine specimens were prepared using the samples of Example 1 and Comparative Example 1, respectively. After 8 days, 3 of each specimen were removed and the number of mites that had migrated to the specimen was counted. In counting, the sample in the laminated state described above was disassembled for each layer, each layer was counted using a stereoscopic microscope, and the total value was obtained.

The results are as shown in Table 1. Compared with the mite-catching article of Comparative Example 1, which uses the jacquard fabric as a storage bag, the mite-catching article of Example 1 of the present invention has a significantly greater number of mites moving. In addition, the number of mites increased remarkably with each passing day, and it can be seen that the article for catching mites of the present invention is extremely excellent in catching properties.

2. Tick catching property 2 (tick movement confirmation test 2)
The mite-trapping articles obtained in Examples 1 and 2 and Comparative Example 2 were used as samples. Each sample was placed in the center of the bottom of a test container (resin container for preserving food, capacity: about 13 liters, width: about 32 cm x depth: 44 cm x height: about 9.5 cm).

A mite culture medium containing about 10,000 test mites was spread around the sample on the bottom of the container so as not to come into direct contact with the sample. In order to keep the humidity in the test container at about 75% RH, put one small container containing 30 ml of saturated saline in the bottom corner of the test container, seal the test container with food storage wrap, and keep it at room temperature (25-28 ° C). ) for 24 hours.

After 24 hours, the samples were removed from the test containers and the number of mites migrated to the samples was counted. For counting, the sample was first cut open, and only the adhesive sheet inside was taken out from the entire sample and directly counted under a stereomicroscope. The storage bag other than the adhesive sheet and the attractant holder were washed evenly by vigorously spraying tap water on a metal sieve (20 mesh), and the entire amount of washing water was collected and passed through a filter paper. Mites were counted under a stereomicroscope. This washing was repeated until test mites were no longer detected in the washing water. Then, the total value of both count values was obtained.

As a result, 1003 mites migrated to the mites trapping article having a storage bag made of the white needle-punched nonwoven fabric of Comparative Example 2, whereas 1586 mites migrated in Example 1 and 1221 mites mites in Example 2. The mites-trapping article having the storage bag made of the black needle-punched non-woven fabric of Example 1 of the present invention had a large number of mites moving and was excellent in trapping properties.

Claims (3)

An attractant holding body holding a tick attractant and a tick trapping body containing an adhesive for trapping mites are housed inside a housing bag made of a needle-punched nonwoven fabric to form the housing bag. An article for catching mites, wherein the needle-punched nonwoven fabric has a thickness of 0.5 to 3.0 mm, a basis weight of 100 to 500 g/m ² , and is black. 2. The article for catching mites according to claim 1, wherein the needle-punched nonwoven fabric has needle-punched micropores with a pore diameter of 0.1 to 0.6 mm on the surface of the nonwoven fabric. 3. An article for catching mites according to claim 1 or 2, characterized by containing an allergen-suppressing component.